1. A steel plate rib exposed frame assembly type curtain wall system comprises a vertical keel (1), an auxiliary frame (2), an outer packing decorative plate (3), a pressing strip (4), a curtain wall panel (5), a buckling strip (6), a pressing plate (7) and a buckling cover (8); the method is characterized in that: the vertical keel (1) comprises a left steel plate rib (1.1), a right steel plate rib (1.2) and a pig nose bolt (1.3) for connecting the left steel plate rib (1.1) and the right steel plate rib (1.2); vertical connecting strips (9) are respectively arranged on the left side surface and the right side surface of the vertical keel (1) and near the middle position; the horizontal section of the connecting strip (9) is in a horizontal U shape, and two ends of the connecting strip (9) are respectively connected with the vertical keels (1); the longitudinal side surface of the connecting strip (9) is connected with a clamping piece (10); an end plate (11) is arranged on the tail end surface of the left steel plate rib (1.1); the horizontal section of the end plate (11) is horizontal and L-shaped, and one end of the end plate (11) is vertically connected with the end surface of the left steel plate rib (1.1); the front end surfaces of the left steel plate rib (1.1) and the right steel plate rib (1.2) are respectively connected with a vertical connecting frame (12); the two outer-coated decorative plates (3) are respectively covered on the left side and the right side of the vertical keel (1); the tail ends of the outer-coated decorative plates (3) are respectively bent towards one side of the vertical keel (1) to form folded edges (3.1), and the folded edges (3.1) of the two outer-coated decorative plates (3) are connected with the end plate (11) through a group of first fasteners (13); the buckling strip (6) covers the outer side of the group of first fastening pieces (13); a first hanging piece (14) is connected to the inner side surface of the outer-coated decorative plate (3) at a position corresponding to the clamping piece (10); the first hanging piece (14) is connected with the clamping piece (10) in a hanging manner; a second hanging piece (15) is connected to the inner side surface of the outer-coated decorative plate (3) at a position corresponding to the connecting frame (12); the two auxiliary frames (2) are respectively and correspondingly connected with the two connecting frames (12); the auxiliary frame (2) is composed of a first longitudinal plate section (2.1), a first transverse plate section (2.2) and a second longitudinal plate section (2.3); the first transverse plate section (2.2) is attached to the front side face of the connecting frame (12), and the first transverse plate section (2.2) is connected with the connecting frame (12) through a second fastener (16); the first longitudinal plate section (2.1) and the second longitudinal plate section (2.3) are respectively connected to two ends of the first transverse plate section (2.2), and the first longitudinal plate section (2.1) is connected with the second hanging piece (15) in a hanging manner; the pressing strip (4) is connected to the second longitudinal plate section (2.3), and the pressing strip (4) and the auxiliary frame (2) jointly form a slot (17) with an outward opening; the curtain wall panels (5) are arranged on two sides of the vertical keels (1), and the end parts of the curtain wall panels (5) are inserted into the slots (17) on the corresponding side; the front side edge of the outer-coated decorative plate (3) is connected with a curtain wall panel (5); a decorative strip support arm (18) is arranged in a gap between the two auxiliary frames (2); the tail end of the decorative strip support arm (18) is connected with the connecting frame (12), and the front end of the decorative strip support arm (18) exceeds the front side surface of the pressing strip (4); the pressing plate (7) covers the front sides of the two auxiliary frames (2), two ends of the pressing plate (7) are respectively connected with the curtain wall panels (5) on two sides, and the middle part of the pressing plate (7) is connected with the decorative strip support arm (18) through a third fastener (19); the buckle cover (8) is covered on the outer side of the pressure plate (7), and two sides of the buckle cover (8) are connected with the pressure plate (7) in a hanging mode.

2. The steel plate rib exposed frame fabricated curtain wall system according to claim 1, wherein: the clamping piece (10) consists of a clamping groove (10.1) and a connecting plate (10.2), and the connecting plate (10.2) of the clamping piece (10) is detachably connected with the connecting strip (9) through a fourth fastener (20); the notch of the clamping groove (10.1) faces the indoor direction.

3. The steel plate rib exposed frame fabricated curtain wall system according to claim 1, wherein: the horizontal section of the connecting frame (12) is rectangular; a gap is formed on the connecting frame (12) and on one side close to the left steel plate rib (1.1) or the right steel plate rib (1.2) along the vertical through length; the vertical sides of the two sides of the notch of the connecting frame (12) are respectively welded with the adjacent side of the left steel plate rib (1.1) or the adjacent side of the right steel plate rib (1.2).

4. The steel plate rib exposed frame fabricated curtain wall system according to claim 1, wherein: an anti-corrosion rubber mat (21) is padded between the first fastening piece (13) and the end plate (11); the folded edge (3.1) is attached to the anti-corrosion rubber mat (21), and the outer side surface of the folded edge (3.1) is connected with a fastening strip base (22); the buckling strip (6) is buckled on the outer side of the buckling strip base (22).

5. The steel plate rib exposed frame fabricated curtain wall system according to claim 1, wherein: the horizontal section of the decorative strip support arm (18) is Z-shaped; the decorative strip support arm (18) consists of a third longitudinal plate section (18.1), a second transverse plate section (18.2) and a third transverse plate section (18.3); the second transverse plate section (18.2) and the third transverse plate section (18.3) are respectively connected to the front end and the rear end of the third longitudinal plate section (18.1); the third fastening element (19) connects the second transverse plate section (18.2) to the pressure plate (7); the third transverse plate section (18.3) is connected to the connecting frame (12) by means of a fifth fastening element (23).

6. The steel plate rib exposed frame fabricated curtain wall system according to claim 1, wherein: a cushion block (24) is padded between the auxiliary frame (2) and the connecting frame (12); the auxiliary frame (2) is connected with the curtain wall panel (5) through a double-sided sticker (25); and sealant (26) is filled between the auxiliary frame (2) and the curtain wall panel (5) and positioned on the inner side of the double-sided tape (25).

7. The steel plate rib exposed frame fabricated curtain wall system according to claim 1, wherein: and a gap between the decorative strip support arm (18) and the auxiliary frame (2) is filled with a foam rod.

8. A construction method of the steel plate rib exposed frame fabricated curtain wall system as claimed in any one of claims 1 to 7, comprising the steps of:

the method comprises the following steps: manufacturing a left steel plate rib (1.1) and a right steel plate rib (1.2) according to a design drawing;

step two: welding an end plate (11) to the tail end of the left steel plate rib (1.1); respectively welding the connecting frame (12) to the front end surfaces of the left steel plate rib (1.1) and the right steel plate rib (1.2); welding a connecting strip (9) on the side surfaces of the left steel plate rib (1.1) and the right steel plate rib (1.2) and at a position close to the middle; flatness measurement of a left steel plate rib (1.1) and a right steel plate rib (1.2) is carried out, and welding seams are polished and coated for corrosion prevention;

step three: the auxiliary frame (2) is installed according to an assembly drawing, the auxiliary frame (2) is respectively connected with the connecting frame (12), the auxiliary frame is isolated by using a cushion block (24), and the auxiliary frame (2) is connected and fixed with the connecting frame (12) through a second fastening piece (16);

step four: connecting the decorative strip support arm (18) with the right steel plate rib (1.2) according to an assembly drawing, and checking the flatness of the front end finishing surface of the decorative strip support arm (18) after connection so as to ensure the verticality when a pressing plate (7) is subsequently installed;

step five: mounting a curtain wall panel (5) on the auxiliary frame (2), sticking a double-sided sticker (25) on the auxiliary frame (2), and then injecting sealant (26);

step six: after the curtain wall panel (5) is installed, filling foam rods and injecting silicone weather-resistant sealant between the periphery of the curtain wall panel (5) and the auxiliary frame (2);

step seven: the installation of the pressing strip (4) is carried out, the firm and effective connection between the pressing strip (4) and the auxiliary frame (2) is ensured, and an Ethylene Propylene Diene Monomer (EPDM) plug strip is used for sealing between the pressing strip (4) and the curtain wall panel (5);

step eight: after the pressing strip (4) is installed, the left steel plate rib (1.1) and the right steel plate rib (1.2) are connected and fixed through a pig nose bolt (1.3);

step nine: according to the positions of the connecting strips (9) on the two sides of the vertical keel (1), the clamping pieces (10) are connected to the connecting strips (9), and the clamping pieces (10) are isolated from the connecting strips (9) by using anti-corrosion gaskets;

step ten: mounting the pressing plate (7): covering the pressing plate (7) at the front sides of the two auxiliary frames (2), respectively connecting the two ends of the pressing plate (7) with the curtain wall panels (5) at the two sides, and connecting the middle part of the pressing plate (7) with the decorative strip support arm (18) through a third fastener (19);

step eleven: installing an outer packaging decoration plate (3): connecting a first hanging piece (14) and a second hanging piece (15) to the outer-coated decorative plate (3), hanging the first hanging piece (14) and the second hanging piece (15) with the clamping piece (10) and the first longitudinal plate section (2.1) respectively, and connecting the tail ends of the outer-coated decorative plates (3) on the two sides through a first fastener (13);

step twelve: installing a buckle cover (8) and a buckle strip (6): the buckling cover (8) is covered on the outer side of the pressing plate (7), and two sides of the buckling cover (8) are connected with the pressing plate (7) in a hanging manner; covering the buckling strip (6) on the first fastening piece (13) until the construction is finished.

9. The construction method of the steel plate rib exposed frame fabricated curtain wall system according to claim 8, wherein: the manufacturing method of the left steel plate rib (1.1) and the right steel plate rib (1.2) in the first step comprises the following steps:

step 1, processing a left steel plate rib (1.1) and a right steel plate rib (1.2) in a factory;

step 2, straightening the left steel plate rib (1.1) and the right steel plate rib (1.2);

and 3, opening holes in the left steel plate rib (1.1) and the right steel plate rib (1.2) according to the hole site requirement of the design calculation result after straightening.

10. The construction method of the steel plate rib exposed frame fabricated curtain wall system according to claim 8, wherein: and step twelve, before the buckle strip (6) is installed, connecting the outer side of the folded edge (3.1) with a buckle strip base (22), and connecting the buckle strip (6) with the buckle strip base (22).

Background

The glass curtain wall is used as a light and attractive outer protective structure, along with the more deep exploration of designers on the special-shaped beauty of buildings, the design and the application of particularly high-rise and super-high-rise buildings are more and more extensive, in order to pursue the integral transparent effect of the curtain wall, many architects often make the floor spacing very large, and the section of an upright post is required to be narrow, if the design calculation of the aluminum alloy upright post on the high-rise and super-high-rise buildings is adopted, if the narrow section is used for carrying out stress calculation, the calculated value of the strength and the deformation value of the deflection cannot meet the minimum requirement of the standard limit value. If the aluminum alloy upright post section size is increased, after the calculation stress requirement is met, the visual effect of the integral permeability of the curtain wall is not in accordance with the design concept of architects, the integral attractive effect is influenced, and the oppressive feeling can be given to people.

At present in building curtain field, the application of assembled curtain building is also more and more, and the assembled relies on its higher machining precision, the installation accuracy, the installation surface roughness is good, waterproof sealing performance is good, plate maintenance time is guaranteed, construction cycle is shorter, advantages such as the site operation greenization is higher, the high-end building market is taken rapidly, to the pursuit and the site green construction of present building trade to the architectural effect, the bright frame assembled curtain of steel sheet rib of a narrower cross-section is released, can satisfy the safe while of curtain structure atress, satisfy the effect of the whole permeability of building curtain.

Disclosure of Invention

The invention aims to provide a steel plate rib exposed frame assembly type curtain wall system and a construction method thereof, and aims to solve the technical problem that the traditional curtain wall structure cannot simultaneously meet the stress performance of a building and the integral permeability of a building curtain wall.

In order to achieve the purpose, the invention adopts the following technical scheme.

A steel plate rib exposed frame assembly type curtain wall system comprises a vertical keel, an auxiliary frame, an outer packaging decorative plate, a pressing strip, a curtain wall panel, a buckling strip, a pressing plate and a buckling cover; the vertical keel comprises a left steel plate rib, a right steel plate rib and a pig nose bolt for connecting the left steel plate rib and the right steel plate rib; vertical connecting strips are respectively arranged on the left side surface and the right side surface of the vertical keel and close to the middle position; the horizontal section of the connecting strip is in a horizontal U shape, and two ends of the connecting strip are respectively connected with the vertical keels; the longitudinal side surface of the connecting strip is connected with a clamping piece; the end plate is arranged on the tail end face of the left steel plate rib; the horizontal section of the end plate is horizontal and L-shaped, and one end of the end plate is vertically connected with the end face of the left steel plate rib; the front end surfaces of the left steel plate rib and the right steel plate rib are respectively connected with a vertical connecting frame; the two outer package decorative plates are respectively covered on the left side and the right side of the vertical keel; the tail ends of the outer-coated decorative plates are respectively bent towards one side of the vertical keel to form folded edges, and the folded edges of the two outer-coated decorative plates are connected with the end plate through a group of first fasteners; the buckling strip covers the outer side of the group of first fastening pieces; a first hanging piece is connected to the inner side surface of the outer packaging decorative plate and the position corresponding to the clamping piece; the first hanging piece is connected with the clamping piece in a hanging manner; a second hanging piece is connected to the inner side surface of the outer-wrapped decorative plate at a position corresponding to the connecting frame; the two auxiliary frames are respectively and correspondingly connected with the two connecting frames; the auxiliary frame is composed of a first longitudinal plate section, a first transverse plate section and a second longitudinal plate section; the first transverse plate section is attached to the front side face of the connecting frame and is connected with the connecting frame through a second fastener; the first longitudinal plate section and the second longitudinal plate section are respectively connected to two ends of the first transverse plate section, and the first longitudinal plate section is connected with the second hanging piece in a hanging mode; the pressing strip is connected to the second longitudinal plate section, and the pressing strip and the auxiliary frame jointly form a slot with an outward opening; the curtain wall panels are arranged on two sides of the vertical keels, and the end parts of the curtain wall panels are inserted into the slots on the corresponding side; the front side edge of the outer decorative plate is connected with the curtain wall panel; a decorative strip support arm is arranged in a gap between the two auxiliary frames; the tail end of the decorative strip support arm is connected with the connecting frame, and the front end of the decorative strip support arm exceeds the front side surface of the pressing strip; the pressing plate covers the front sides of the two auxiliary frames, two ends of the pressing plate are respectively connected with the curtain wall panels on two sides, and the middle part of the pressing plate is connected with the decorative strip support arm through a third fastener; the buckle cover is arranged on the outer side of the pressing plate, and two sides of the buckle cover are connected with the pressing plate in a hanging mode.

Preferably, the clamping piece consists of a clamping groove and a connecting plate, and the connecting plate of the clamping piece is detachably connected with the connecting strip through a fourth fastener; the notch of the clamping groove faces the indoor direction.

Preferably, the horizontal section of the connecting frame is rectangular; a notch is formed in one side, close to the left steel plate rib or the right steel plate rib, of the connecting frame along the vertical through length; and the vertical side edges of the two sides of the notch of the connecting frame are respectively welded and connected with the adjacent side surface of the left steel plate rib or the adjacent side surface of the right steel plate rib.

Preferably, an anti-corrosion rubber mat is padded between the first fastener and the end plate; the hem is attached to the anti-corrosion rubber mat, and the outer side face of the hem is connected with a buckle strip base; the buckling strip is buckled on the outer side of the buckling strip base.

Preferably, the horizontal section of the decorative strip support arm is Z-shaped; the decorative strip support arm consists of a third longitudinal plate section, a second transverse plate section and a third transverse plate section; the second transverse plate section and the third transverse plate section are respectively connected to the front end and the rear end of the third longitudinal plate section; the third fastener connects the second transverse plate section with the pressure plate; the third transverse plate section is connected with the connecting frame through a fifth fastener.

Preferably, a cushion block is padded between the auxiliary frame and the connecting frame; the auxiliary frame is connected with the curtain wall panel through double-sided paste; and sealant is filled between the auxiliary frame and the curtain wall panel and positioned on the inner side of the double-sided sticker.

Preferably, a gap between the decorative strip support arm and the auxiliary frame is filled with a foam rod.

A construction method of a steel plate rib exposed frame assembly type curtain wall system comprises the following steps.

The method comprises the following steps: and manufacturing a left steel plate rib and a right steel plate rib according to a design drawing.

Step two: welding an end plate to the end of the left steel plate rib; respectively welding the connecting frames to the front end surfaces of the left steel plate rib and the right steel plate rib; welding the connecting bars on the side surfaces of the left steel plate rib and the right steel plate rib and at the position close to the middle; and (4) measuring the flatness of the left steel plate rib and the right steel plate rib, polishing the welding line and brushing for corrosion prevention.

Step three: and (4) installing the auxiliary frame according to the assembly drawing, wherein the auxiliary frame is respectively connected with the connecting frame, is isolated by using the cushion block, and is fixedly connected with the connecting frame through a second fastener.

Step four: and connecting the decorative strip support arm with the right steel plate rib according to an assembly drawing, and checking the flatness of the finished surface of the front end of the decorative strip support arm after connection so as to ensure the verticality during subsequent installation of the pressing plate.

Step five: and (3) mounting the curtain wall panel on the auxiliary frame, pasting the double-sided paste on the auxiliary frame, and then injecting the sealant.

Step six: after the installation of the curtain wall panel is finished, foam rods and silicone-injected weather-resistant sealant are filled between the periphery of the curtain wall panel and the auxiliary frame.

Step seven: and the installation of the pressing strip is carried out, so that the firm and effective connection between the pressing strip and the auxiliary frame is ensured, and the Ethylene Propylene Diene Monomer (EPDM) plug strip is used for sealing between the pressing strip and the curtain wall panel.

Step eight: and after the pressing strips are installed, the left steel plate rib and the right steel plate rib are fixedly connected through a pig nose bolt.

Step nine: according to the positions of the connecting strips on the two sides of the vertical keel, the clamping piece is connected to the connecting strips, and the clamping piece and the connecting strips are isolated by using anti-corrosion gaskets.

Step ten: installing a pressing plate: the pressing plates are covered on the front sides of the two auxiliary frames, the two ends of each pressing plate are respectively connected with the curtain wall panels on the two sides, and the middle parts of the pressing plates are connected with the decorative strip support arms through third fasteners.

Step eleven: installing an outer packaging decoration plate: connect first pendant and second pendant on the outsourcing decorative board to articulate first pendant and second pendant respectively with fastener, first vertical plate section, connect the end of the outsourcing decorative board of both sides through first fastener.

Step twelve: installing a buckle cover and a buckle strip: the buckling cover is covered on the outer side of the pressing plate, and two sides of the buckling cover are connected with the pressing plate in a hanging mode; and covering the buckling strip on the first fastening piece until the construction is finished.

Preferably, the manufacturing of the left steel plate rib and the right steel plate rib in the first step comprises the following steps.

Step 1, machining left steel plate ribs and right steel plate ribs in a factory.

And 2, straightening the left steel plate rib and the right steel plate rib.

And 3, opening holes in the left steel plate rib and the right steel plate rib according to the hole site requirements of the design calculation result after straightening.

Preferably, before the fastening strip is installed in the twelfth step, the outer side of the folded edge is connected with the fastening strip base, and the fastening strip is connected with the fastening strip base.

Compared with the prior art, the invention has the following characteristics and beneficial effects.

1. According to the fabricated steel plate rib exposed frame fabricated curtain wall system, the left steel plate rib and the right steel plate rib are respectively framed with the steel cross beam in the structure in a processing factory assembly mode before construction, auxiliary frame installation is completed, after assembly is completed, the finished product unit is transported to the site, after hoisting is in place, the left steel plate rib and the right steel plate rib are in a cooperative stress mode after assembly, site connection is performed through a pig nose bolt, after plate splicing is completed, the appearance mode that the aluminum plate decorative line is additionally buckled on the vertical keel completion surface is achieved, stress is reasonable, the effect is attractive, the transparent sensory effect can be achieved, and meanwhile the problem of hoisting overrun is solved.

2. The steel plate rib exposed frame assembly type curtain wall system and the construction method thereof can provide more design and construction feasibility for the assembly curtain wall, so that the purposes of convenient field installation, reasonable stress, small section, symmetrical appearance, good visual effect and the like are achieved, the traditional frame method is replaced, the high-end, green and environment-friendly building construction requirements are met, and a wider thought is provided for unit type design and application.

3. According to the invention, the decorative strip support arm is arranged on the inner side of the pressing plate, the inner end of the decorative strip support arm is stably connected with the vertical keel, so that a stable connection base is provided for the pressing plate and the buckle cover, and the pressing plate and the buckle cover are prevented from falling off in the use process, and the attractiveness of the outer vertical surface of the building is prevented from being influenced.

4. The steel plate rib exposed frame assembly type curtain wall system has good stress performance, can meet the design and performance requirements of a large-span assembly type curtain wall, and can enable the structure appearance to be symmetrical, and the whole body is attractive and elegant, safe and reliable.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic horizontal sectional structure view of the steel plate rib exposed frame assembled curtain wall system of the invention.

Fig. 2 is an exploded view of the steel plate rib exposed frame assembled curtain wall system of the present invention.

Figure 3 is a schematic plan view of the mullion of the present invention.

FIG. 4 is a schematic view of a buckle strip disposed on a buckle strip base according to the present invention.

Fig. 5 is a schematic structural view of the decorative strip support arm of the present invention.

Fig. 6 is a schematic structural view of an auxiliary frame in the present invention.

Fig. 7 is a schematic structural view of the double-sided tape and the sealant arranged on the outer side of the auxiliary frame in the invention.

Reference numerals: 1-vertical keel, 1.1-left steel plate rib, 1.2-right steel plate rib, 1.3-pig nose bolt, 2-auxiliary frame, 2.1-first longitudinal plate section, 2.2-first transverse plate section, 2.3-second longitudinal plate section, 3-outer decorative plate, 3.1-folded edge, 4-pressing strip, 5-curtain wall panel, 6-buckling strip, 7-pressing plate, 8-buckling cover, 9-connecting strip, 10-clamping piece, 10.1-clamping groove, 10.2-connecting plate, 11-end plate, 12-connecting frame, 13-first fastener, 14-first hanger, 15-second hanger, 16-second fastener, 17-inserting groove, 18-decorative strip support arm, 18.1-third longitudinal plate section, 18.2-second transverse plate section, 18.3-third transverse plate section, 19-third fastener, 20-fourth fastener, 21-anticorrosive cushion, 22-buckling strip, 24-25-fifth fastening strip, 24-25-sealant and sealant.

Detailed Description

As shown in fig. 1-7, the steel plate rib exposed frame assembly type curtain wall system comprises a vertical keel 1, an auxiliary frame 2, an outer-wrapped decorative plate 3, a batten 4, a curtain wall panel 5, a buckle strip 6, a pressing plate 7 and a buckle cover 8; the vertical keel 1 comprises a left steel plate rib 1.1, a right steel plate rib 1.2 and a pig nose bolt 1.3 for connecting the left steel plate rib 1.1 and the right steel plate rib 1.2; vertical connecting strips 9 are respectively arranged on the left side surface and the right side surface of the vertical keel 1 and close to the middle position; the horizontal section of the connecting strip 9 is in a horizontal U shape, and two ends of the connecting strip 9 are respectively connected with the vertical keels 1; the longitudinal side surface of the connecting strip 9 is connected with a clamping piece 10; an end plate 11 is arranged on the tail end surface of the left steel plate rib 1.1; the horizontal section of the end plate 11 is horizontal and L-shaped, and one end of the end plate 11 is vertically connected with the end surface of the left steel plate rib 1.1; the front end surfaces of the left steel plate rib 1.1 and the right steel plate rib 1.2 are respectively connected with a vertical connecting frame 12; the two outer package decorative plates 3 are respectively covered on the left side and the right side of the vertical keel 1; the tail ends of the outer packaging decorative plates 3 are respectively bent towards one side of the vertical keel 1 to form folded edges 3.1, and the folded edges 3.1 of the two outer packaging decorative plates 3 are connected with the end plate 11 through a group of first fasteners 13; the buckle strip 6 covers the outer side of the group of first fastening pieces 13; a first hanging piece 14 is connected to the inner side surface of the outer package decorative plate 3 at a position corresponding to the clamping piece 10; the first hanging piece 14 is connected with the clamping piece 10 in a hanging way; a second hanging piece 15 is connected to the inner side surface of the outer package decorative plate 3 at a position corresponding to the connecting frame 12; the number of the auxiliary frames 2 is two, and the two auxiliary frames are correspondingly connected with the two connecting frames 12 respectively; the auxiliary frame 2 consists of a first longitudinal plate section 2.1, a first transverse plate section 2.2 and a second longitudinal plate section 2.3; the first transverse plate section 2.2 is attached to the front side face of the connecting frame 12, and the first transverse plate section 2.2 is connected with the connecting frame 12 through a second fastening piece 16; the first longitudinal plate section 2.1 and the second longitudinal plate section 2.3 are respectively connected to two ends of the first transverse plate section 2.2, and the first longitudinal plate section 2.1 is connected with the second hanging piece 15 in a hanging manner; the pressing strip 4 is connected to the second longitudinal plate section 2.3, and the pressing strip 4 and the auxiliary frame 2 jointly form a slot 17 with an outward opening; the curtain wall panels 5 are arranged on two sides of the vertical keels 1, and the end parts of the curtain wall panels 5 are inserted into the slots 17 on the corresponding side; the front side edge of the outer packaging decorative plate 3 is connected with a curtain wall panel 5; a decorative strip support arm 18 is arranged in a gap between the two auxiliary frames 2; the tail end of the decorative strip support arm 18 is connected with the connecting frame 12, and the front end of the decorative strip support arm 18 exceeds the front side surface of the pressing strip 4; the pressing plate 7 covers the front sides of the two auxiliary frames 2, two ends of the pressing plate 7 are respectively connected with the curtain wall panels 5 on two sides, and the middle part of the pressing plate 7 is connected with the decorative strip support arm 18 through a third fastener 19; the buckle cover 8 is covered on the outer side of the press plate 7, and two sides of the buckle cover 8 are hung with the press plate 7.

In this embodiment, the clamping piece 10 is composed of a clamping groove 10.1 and a connecting plate 10.2, and the connecting plate 10.2 of the clamping piece 10 is detachably connected with the connecting strip 9 through a fourth fastener 20; the notches of the slots 10.1 face in the indoor direction.

In this embodiment, the horizontal section of the connecting frame 12 is rectangular; a notch is formed in the connecting frame 12 on one side close to the left steel plate rib 1.1 or the right steel plate rib 1.2 along the vertical through length; the vertical sides of the two sides of the notch of the connecting frame 12 are respectively welded with the adjacent side of the left steel plate rib 1.1 or the adjacent side of the right steel plate rib 1.2.

In this embodiment, an anti-corrosion rubber pad 21 is padded between the first fastening piece 13 and the end plate 11; the folded edge 3.1 is attached to the anti-corrosion rubber mat 21, and the outer side surface of the folded edge 3.1 is connected with a buckle strip base 22; the buckling strip 6 is buckled on the outer side of the buckling strip base 22.

In this embodiment, the horizontal section of the decorative strip support arm 18 is Z-shaped; the decorative strip support arm 18 consists of a third longitudinal plate section 18.1, a second transverse plate section 18.2 and a third transverse plate section 18.3; the second transverse plate section 18.2 and the third transverse plate section 18.3 are respectively connected to the front end and the rear end of the third longitudinal plate section 18.1; the third fastening element 19 connects the second transverse plate section 18.2 to the pressure plate 7; the third transverse plate section 18.3 is connected to the connecting frame 12 by means of a fifth fastening element 23.

In this embodiment, a cushion block 24 is padded between the auxiliary frame 2 and the connecting frame 12; the auxiliary frame 2 is connected with the curtain wall panel 5 through a double-sided sticker 25; the sealant 26 is filled between the auxiliary frame 2 and the curtain wall panel 5 and positioned on the inner side of the double-sided tape 25.

In this embodiment, a gap between the decorative strip support arm 18 and the auxiliary frame 2 is filled with a foam rod.

The construction method of the steel plate rib exposed frame assembly type curtain wall system comprises the following steps.

The method comprises the following steps: and manufacturing a left steel plate rib 1.1 and a right steel plate rib 1.2 according to design drawings.

Step two: welding an L-shaped end plate 11 processed in advance to the tail end of the left steel plate rib 1.1; welding the connecting frame 12 processed in advance to the front end surfaces of the left steel plate rib 1.1 and the right steel plate rib 1.2 respectively; welding the connecting strips 9 processed in advance on the side surfaces of the left steel plate rib 1.1 and the right steel plate rib 1.2 and at the positions close to the middle; and (3) carrying out flatness measurement on the left steel plate rib 1.1 and the right steel plate rib 1.2, polishing a welding line and brushing for corrosion prevention.

Step three: according to an assembly drawing, the top and the bottom of the left steel plate rib 1.1 and the top and the bottom of the right steel plate rib 1.2 are respectively welded and assembled with the steel beam, the flatness of the whole steel frame is checked after the assembly is finished, and the diagonal dimension of the whole steel frame and the horizontal finish surface of the connecting frame 12 at the front end are measured.

Step four: according to the assembly drawing, the auxiliary frame 2 is installed, the auxiliary frame 2 is connected with the connecting frame 12 respectively, the cushion blocks 24 are used for isolation, the auxiliary frame 2 and the connecting frame 12 are arranged at intervals according to the design requirement, and the second fastening piece 16 is used for connecting and fixing the auxiliary frame 2 and the connecting frame 12.

Step five: according to an assembly drawing, the decorative strip support arm 18 is connected with the right steel plate rib 1.2 according to the position required by design, and is mechanically connected through a countersunk machine screw; after connection, the flatness of the finished surface of the front end of the decorative strip support arm 18 is checked to ensure the verticality when the pressing plate 7 is subsequently installed, and the appearance requirement is met.

Step six: the curtain wall panel 5 is arranged on the auxiliary frame 2, the double-sided tape 25 is pasted on the auxiliary frame 2, the pasting of the double-sided tape 25 is smooth and straight, the gaps around the curtain wall panel 5 are uniform and equal in width, after the position is determined to be correct, glue is injected into the sealant 26, and the sealant 26 is continuous, full and smooth.

Step seven: after the curtain wall panel 5 is installed, the foam rods between the periphery of the curtain wall panel 5 and the auxiliary frame 2 are filled, and the silicone weather-resistant sealing adhesive is injected continuously, fully and smoothly.

Step eight: after the silicone weather-resistant sealing adhesive glue injection is finished, the press strip 4 is installed, the press strip 4 is guaranteed to be firmly and effectively connected with the auxiliary frame 2, and the press strip 4 and the curtain wall panel 5 are plugged tightly by an ethylene propylene diene monomer plug strip.

Step nine: after the pressing strip 4 is installed, the left steel plate rib 1.1 and the right steel plate rib 1.2 are fixedly connected through the pig nose bolt 1.3.

Step ten: according to the positions of the connecting strips 9 on the two sides of the mullion 1, the clamping pieces 10 are connected to the connecting strips 9, and the clamping pieces 10 and the connecting strips 9 are isolated by using anti-corrosion gaskets.

Step eleven: installing a pressing plate 7: the pressing plate 7 covers the front sides of the two auxiliary frames 2, two ends of the pressing plate 7 are respectively connected with the curtain wall panels 5 on two sides, and the middle part of the pressing plate 7 is connected with the decorative strip support arm 18 through a third fastener 19.

Step eleven: installing an outer packaging decoration plate 3: the first hanging piece 14 and the second hanging piece 15 are connected to the outer package decoration plate 3, the first hanging piece 14 and the second hanging piece 15 are respectively hung on the clamping piece 10 and the first longitudinal plate section 2.1, and the tail ends of the outer package decoration plates 3 on two sides are connected through the first fastening piece 13.

Step twelve: installing the buckle cover 8 and the buckle strip 6: the buckling cover 8 is covered on the outer side of the pressing plate 7, and two sides of the buckling cover 8 are connected with the pressing plate 7 in a hanging manner; and covering the buckling strip 6 on the first fastening piece 13 until the construction is finished.

In this embodiment, the manufacturing of the left steel plate rib 1.1 and the right steel plate rib 1.2 in the first step includes the following steps.

Step 1, machining a left steel plate rib 1.1 and a right steel plate rib 1.2 in a factory.

And 2, straightening the left steel plate rib 1.1 and the right steel plate rib 1.2.

And 3, opening holes in the left steel plate rib 1.1 and the right steel plate rib 1.2 according to the hole site requirement of the design calculation result after straightening.

In this embodiment, before the fastening strip 6 is installed in the twelfth step, the outer side of the folded edge 3.1 is connected to the fastening strip base 22, and the fastening strip 6 is connected to the fastening strip base 22.

In this embodiment, the curtain wall panel 5 is made of all-tempered laminated hollow glass.

The above embodiments are not intended to be exhaustive or to limit the invention to other embodiments, and the above embodiments are intended to illustrate the invention and not to limit the scope of the invention, and all applications that can be modified from the invention are within the scope of the invention.