1. An innovative precision measurement method in double-distortion building construction is characterized by comprising the following steps:

A. controlling the measurement precision of the large-span arc-shaped oblique crossing steel gallery of the upper cover of the subway;

B. controlling the measurement precision of the multi-angle oblique cylinder;

C. controlling the measurement precision of the double-curved-surface porous aluminum plate curtain wall;

D. measuring and controlling a three-dimensional special-shaped steel net rack keel;

E. and (5) measuring and controlling the structure of the atrium daylighting top film.

2. The innovative precision measurement method in double-distortion building construction according to claim 1, characterized in that the innovative precision measurement method in double-distortion building construction comprises the following specific steps:

A. subway upper cover large-span arc skew steel gallery measurement accuracy control includes:

the method is based on a total station, an electronic level, a GPS global positioning system, a three-dimensional laser scanner, the Internet of things and a wireless data transmission fusion multiple intelligent measurement technologies, solves the technical problems of measurement speed, precision, deformation and the like which are difficult to solve by a traditional measurement method in the specially-shaped large-span steel structure engineering, realizes effective control on the installation precision, quality and safety of the steel structure and the engineering progress, can determine the overall effect of the steel corridor after installation, determines the accumulated result of monitoring data, compares the accumulated result with a designed value, and compares the accumulated result with a standard quality acceptance standard;

B. the method for controlling the measurement precision of the multi-angle oblique cylinder comprises the following steps:

a. projecting the central positions of the bottom surface and the top surface of the column by using the same surface, and then calculating the distance between the two circle centers;

b. dividing the batter post of each floor, and finding out the respective inclination angle by taking the floor as a construction area according to a design drawing;

c. calculating the three-dimensional positions of two elevation points of each construction section according to the inclination angle by using BIM, and then marking the dimension on the model as a basis for installing and checking the template in construction;

C. the measurement accuracy control method of the double-curved-surface porous aluminum plate curtain wall comprises the following steps:

a. establishing a space model coordinate system, establishing a primary model, finding out the difficulty and difficulty of measuring the paying-off and establishing a construction scheme through analyzing the model;

b. extracting control point data, establishing an accurate three-dimensional solid model, and extracting and outputting control point coordinates from the model;

c. the method comprises the following steps of (1) measuring and scanning a field structure, wherein a main body structure and a main body steel structure are measured, scanned and data are acquired before measurement is carried out on a curtain wall;

d. laying a construction control net, namely firstly surveying the construction control net, fully considering the conditions of visibility, coverage, station measurement distance, building corners, measurement precision and the like, selecting a proper measurement control point position, fixing a special batten for measurement and a measurement nail with a cross wire at the control point position, and taking the measurement nail as a measurement control point;

e. measuring the layout of mark points, reasonably arranging specific scanning stations of the scanner according to the early-stage site reconnaissance condition, and arranging chessboard targets and spherical targets for jointly measuring a scanning coordinate system and a construction coordinate system at each station of the scanner;

f. the method comprises the following steps that a three-dimensional laser scanner is used for field scanning, a set station is surveyed in an early stage, a region to be detected is scanned in detail, the data resolution and the quality of the three-dimensional laser scanner are reasonably set in the scanning process so as to ensure the reliability of data, attention needs to be paid in the scanning process, and a spherical target and a spherical plane target for coordinate joint measurement can be clearly identified;

g. measuring the distributed plane target and the spherical target by adopting a high-precision total station, and reserving the plane target and the spherical target for later-stage coordinate system registration;

h. comparing and analyzing the measured data and the model data, comparing and analyzing the processed field scanning data and the original design model, and issuing a comprehensive detection report;

i. performing collision analysis on the basic point cloud data and the finished surface deepening data, and performing collision analysis on the actual point cloud data of the site and the finished surface design model according to scanning;

D. the three-dimensional special-shaped steel net rack keel measurement control method comprises the following steps:

a. numbering each control point according to the established model, extracting the coordinates of the control points, and outputting point coordinate data;

b. after the steel mesh frame is temporarily fixed, control point measurement is carried out, and after the measurement is correct, solidification and welding can be carried out;

c. after the steel net frame is installed, retesting and correcting the control points of the steel net frame;

E. the method for measuring and controlling the atrium lighting apical membrane structure comprises the following steps:

the atrium daylighting top adopts ETFE membrane structure, and membrane structure base steel pipe span is big, and the rail location that the steelframe slided is difficult, adopts automatic measuring robot to trail the location in real time, process flow: measuring and paying off, mounting a rear compensation embedded part, mounting a sliding track, mounting a steel mesh frame, positioning an automatic measuring robot, mounting a connecting piece, performing steel structure anticorrosion treatment, mounting a film structure steel-aluminum keel, mounting a film structure and mounting an aluminum alloy cover plate;

a. rechecking the precision of the axis on the existing building plane and the control point of the steel structure datum line;

b. measuring the plane positioning axis of each steel member from a plane datum line (point) by using an instrument, and marking the position near the installation position of each steel member by using red paint;

c. and measuring the X axis and the Y axis of the steel column by using a steel ruler by using a measuring datum line, and adding temperature correction to the measured data.

3. The innovative precision measurement method in double-distortion building construction according to claim 2, characterized in that: and B, the specific models of the total station and the three-dimensional laser scanner in the measurement precision control process of the subway upper cover large-span arc-shaped oblique crossing steel corridor in the step A are GTS211-D and Tianbao TX 5.

4. The innovative precision measurement method in double-distortion building construction according to claim 2, characterized in that: and B, taking H +1.000m as a boundary of a floor area in the multi-angle oblique cylinder measurement precision control process in the step B.

5. The innovative precision measurement method in double-distortion building construction according to claim 2, characterized in that: and C, the ratio of the three-dimensional solid model in the measurement precision control process of the hyperboloid porous aluminum plate curtain wall is 1: 1.

6. The innovative precision measurement method in double-distortion building construction according to claim 2, characterized in that: and E, in the process of measuring and controlling the atrium lighting top film structure, the allowable error of the longitudinal axis and the transverse axis of the steel component in the positioning process is 1 mm.

7. The innovative precision measurement method in double-distortion building construction according to claim 2, characterized in that: e, temperature correction value in the process of measuring and controlling the atrium lighting top film structure: Δ L ═ L × (22-t)0.0012/m ℃ (mm), where t: atmospheric temperature (. degree. C.); l: the length (m) is measured.

Background

The technological development of the building industry is more and more advanced, and the requirements of people on buildings are not only limited to the firmness, practicability and economy, but also serve as a building art to meet different aesthetic requirements, so that various special-shaped buildings with different appearance styles are produced. In order to meet the requirements of the special-shaped building model, a general measuring method such as a right-angle coordinate method or a polar coordinate method is not enough to meet the precision requirements of a special-shaped building, and the workload of calculating lofting elements is large, so that the measuring precision is improved, the special-shaped structure not only meets the requirements of design and an owner, but also ensures that the construction progress and the construction quality reach the set target of a contract, and the problem of construction of the special-shaped building is solved.

The existing double-distortion building construction precision measurement method is difficult to accurately control the measurement precision axis, slightly deviates, the connection of the structural arc-shaped section is not smooth, the attractiveness of the overall building outline is affected, the design and the owner have high requirements on the modeling precision of the special-shaped building outline, and the requirements are difficult to meet, so that an innovative precision measurement method in double-distortion building construction is provided.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an innovative precision measurement method in double-distortion building construction, and solves the problems that the precision axis of the existing precision measurement method for double-distortion building construction proposed in the background technology is difficult to control accurately and slightly deviates, so that the connection of the arc sections of the structure is not smooth, the attractiveness of the outline of the whole building is affected, and the requirement of design and owners on the molding precision of the outline of the special building is high, and the requirement is difficult to achieve.

In order to achieve the purpose, the invention is realized by the following technical scheme, and the innovative precision measurement method in the construction of the double-distortion building comprises the following steps:

A. controlling the measurement precision of the large-span arc-shaped oblique crossing steel gallery of the upper cover of the subway;

B. controlling the measurement precision of the multi-angle oblique cylinder;

C. controlling the measurement precision of the double-curved-surface porous aluminum plate curtain wall;

D. measuring and controlling a three-dimensional special-shaped steel net rack keel;

E. and (5) measuring and controlling the structure of the atrium daylighting top film.

Optionally, the innovative precision measurement method in the construction of the double-twisted building comprises the following specific steps:

A. subway upper cover large-span arc skew steel gallery measurement accuracy control includes:

the method is based on a total station, an electronic level, a GPS global positioning system, a three-dimensional laser scanner, the Internet of things and a wireless data transmission fusion multiple intelligent measurement technologies, solves the technical problems of measurement speed, precision, deformation and the like which are difficult to solve by a traditional measurement method in the specially-shaped large-span steel structure engineering, realizes effective control on the installation precision, quality and safety of the steel structure and the engineering progress, can determine the overall effect of the steel corridor after installation, determines the accumulated result of monitoring data, compares the accumulated result with a designed value, and compares the accumulated result with a standard quality acceptance standard;

B. the method for controlling the measurement precision of the multi-angle oblique cylinder comprises the following steps:

a. projecting the central positions of the bottom surface and the top surface of the column by using the same surface, and then calculating the distance between the two circle centers;

b. dividing the batter post of each floor, and finding out the respective inclination angle by taking the floor as a construction area according to a design drawing;

c. calculating the three-dimensional positions of two elevation points of each construction section according to the inclination angle by using BIM, and then marking the dimension on the model as a basis for installing and checking the template in construction;

C. the measurement accuracy control method of the double-curved-surface porous aluminum plate curtain wall comprises the following steps:

a. establishing a space model coordinate system, establishing a primary model, finding out the difficulty and difficulty of measuring the paying-off and establishing a construction scheme through analyzing the model;

b. extracting control point data, establishing an accurate three-dimensional solid model, and extracting and outputting control point coordinates from the model;

c. the method comprises the following steps of (1) measuring and scanning a field structure, wherein a main body structure and a main body steel structure are measured, scanned and data are acquired before measurement is carried out on a curtain wall;

d. and (3) laying the construction control network, firstly surveying the construction control network, and fully considering the conditions of visibility, coverage, survey station distance, building corners, measurement precision and the like to select the position of a proper measurement control point. Then fixing the special battens for measurement and the measurement nails with the cross wires at the positions of the control points and taking the measurement nails as the measurement control points;

e. measuring the layout of mark points, reasonably arranging specific scanning stations of the scanner according to the early-stage site reconnaissance condition, and arranging chessboard targets and spherical targets for jointly measuring a scanning coordinate system and a construction coordinate system at each station of the scanner;

f. and (3) field scanning of the three-dimensional laser scanner, and scanning the area to be detected in detail according to the station which is set by early exploration. In the scanning process, the data resolution and quality of the three-dimensional laser scanner are reasonably set to ensure the reliability of the data. During the scanning process, attention needs to be paid to the fact that a spherical target sphere plane target for coordinate joint measurement can be clearly identified;

g. measuring the distributed plane target and the spherical target by adopting a high-precision total station, and reserving the plane target and the spherical target for later-stage coordinate system registration;

h. comparing and analyzing the measured data and the model data, comparing and analyzing the processed field scanning data and the original design model, and issuing a comprehensive detection report;

i. performing collision analysis on the basic point cloud data and the finished surface deepening data, and performing collision analysis on the actual point cloud data of the site and the finished surface design model according to scanning;

D. the three-dimensional special-shaped steel net rack keel measurement control method comprises the following steps:

a. numbering each control point according to the established model, extracting the coordinates of the control points, and outputting point coordinate data;

b. after the steel mesh frame is temporarily fixed, control point measurement is carried out, and after the measurement is correct, solidification and welding can be carried out;

c. after the steel net frame is installed, retesting and correcting the control points of the steel net frame;

E. the method for measuring and controlling the atrium lighting apical membrane structure comprises the following steps:

the atrium daylighting roof adopts ETFE membrane structure, and membrane structure base steel pipe span is big, and the rail location that the steelframe slided is difficult, adopts automatic measuring robot to trail the location in real time. The process flow comprises the following steps: measuring and paying off, mounting a rear compensation embedded part, mounting a sliding track, mounting a steel mesh frame, positioning an automatic measuring robot, mounting a connecting piece, performing steel structure anticorrosion treatment, mounting a film structure steel-aluminum keel, mounting a film structure and mounting an aluminum alloy cover plate;

a. rechecking the precision of the axis on the existing building plane and the control point of the steel structure datum line;

b. measuring the plane positioning axis of each steel member from a plane datum line (point) by using an instrument, and marking the position near the installation position of each steel member by using red paint;

c. and measuring the X axis and the Y axis of the steel column by using a steel ruler by using the measuring datum line. The measurement data should be corrected for temperature.

Optionally, the specific models of the total station and the three-dimensional laser scanner in the measurement precision control process of the large-span arc-shaped oblique crossing steel corridor on the subway upper cover in the step a are GTS211-D and tianbao TX 5.

Optionally, the floor area in the multi-angle oblique cylinder measurement accuracy control process in step B uses H +1.000m as a boundary.

Optionally, the ratio of the three-dimensional solid model in the measurement precision control process of the hyperboloid porous aluminum plate curtain wall in the step C is 1: 1.

Optionally, in the step E, the allowable error of the positioning longitudinal axis and the positioning transverse axis of the steel member is 1mm in the process of measuring and controlling the atrium lighting roof membrane structure.

Optionally, in the step E, a temperature correction value in the process of measuring and controlling the atrium lighting roof membrane structure is: Δ L ═ L × (22-t)0.0012/m ℃ (mm), where t: atmospheric temperature (. degree. C.); l: the length (m) is measured.

The invention provides an innovative precision measurement method in double-distortion building construction, which has the following beneficial effects: the technology successfully solves the problem that the measurement precision of the conventional technology in the construction of special-shaped buildings is difficult to ensure; such as measurement precision control of a large-span arc-shaped oblique crossing steel corridor of an upper cover of a subway, measurement precision control of a multi-angle oblique cylinder, measurement control of an aluminum plate curtain wall of an outer vertical surface, measurement control of a keel of a three-dimensional special-shaped steel net rack and measurement control of a ceiling structure of a atrium lighting system, measurement precision is improved, labor cost and labor cost are saved, construction efficiency is improved, construction quality can be guaranteed to the maximum extent, and scientific program construction is easy to realize; the method has great social benefit and plays a greater and greater role in the fields of city construction and special-shaped structure construction.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

An innovative precision measurement method in double-distortion building construction comprises the following steps:

A. controlling the measurement precision of the large-span arc-shaped oblique crossing steel gallery of the upper cover of the subway;

B. controlling the measurement precision of the multi-angle oblique cylinder;

C. controlling the measurement precision of the double-curved-surface porous aluminum plate curtain wall;

D. measuring and controlling a three-dimensional special-shaped steel net rack keel;

E. and (5) measuring and controlling the structure of the atrium daylighting top film.

The innovative precision measurement method in the construction of the double-twisted building comprises the following specific steps:

A. subway upper cover large-span arc skew steel gallery measurement accuracy control includes:

the method is based on a total station, an electronic level, a GPS global positioning system, a three-dimensional laser scanner, the Internet of things and a wireless data transmission fusion multiple intelligent measurement technologies, solves the technical problems of measurement speed, precision, deformation and the like which are difficult to solve by a traditional measurement method in the specially-shaped large-span steel structure engineering, realizes effective control on the installation precision, quality and safety of the steel structure and the engineering progress, can determine the overall effect of the steel corridor after installation, determines the accumulated result of monitoring data, compares the accumulated result with a designed value, and compares the accumulated result with a standard quality acceptance standard;

the specific models of a total station and a three-dimensional laser scanner in the measurement precision control process of the large-span arc-shaped oblique crossing steel corridor of the upper cover of the subway are GTS211-D and Tianbao TX 5;

B. the method for controlling the measurement precision of the multi-angle oblique cylinder comprises the following steps:

a. projecting the central positions of the bottom surface and the top surface of the column by using the same surface, and then calculating the distance between the two circle centers;

b. dividing the batter post of each floor, and finding out the respective inclination angle by taking the floor as a construction area according to a design drawing;

c. calculating the three-dimensional positions of two elevation points of each construction section according to the inclination angle by using BIM, and then marking the dimension on the model as a basis for installing and checking the template in construction;

the floor area in the multi-angle oblique cylinder measurement precision control process takes H +1.000m as a boundary;

C. the measurement accuracy control method of the double-curved-surface porous aluminum plate curtain wall comprises the following steps:

a. establishing a space model coordinate system, establishing a primary model, finding out the difficulty and difficulty of measuring the paying-off and establishing a construction scheme through analyzing the model;

b. extracting control point data, establishing an accurate three-dimensional solid model, and extracting and outputting control point coordinates from the model;

c. the method comprises the following steps of (1) measuring and scanning a field structure, wherein a main body structure and a main body steel structure are measured, scanned and data are acquired before measurement is carried out on a curtain wall;

d. and (3) laying the construction control network, firstly surveying the construction control network, and fully considering the conditions of visibility, coverage, survey station distance, building corners, measurement precision and the like to select the position of a proper measurement control point. Then fixing the special battens for measurement and the measurement nails with the cross wires at the positions of the control points and taking the measurement nails as the measurement control points;

e. measuring the layout of mark points, reasonably arranging specific scanning stations of the scanner according to the early-stage site reconnaissance condition, and arranging chessboard targets and spherical targets for jointly measuring a scanning coordinate system and a construction coordinate system at each station of the scanner;

f. and (3) field scanning of the three-dimensional laser scanner, and scanning the area to be detected in detail according to the station which is set by early exploration. In the scanning process, the data resolution and quality of the three-dimensional laser scanner are reasonably set to ensure the reliability of the data. During the scanning process, attention needs to be paid to the fact that a spherical target sphere plane target for coordinate joint measurement can be clearly identified;

g. measuring the distributed plane target and the spherical target by adopting a high-precision total station, and reserving the plane target and the spherical target for later-stage coordinate system registration;

h. comparing and analyzing the measured data and the model data, comparing and analyzing the processed field scanning data and the original design model, and issuing a comprehensive detection report;

i. performing collision analysis on the basic point cloud data and the finished surface deepening data, and performing collision analysis on the actual point cloud data of the site and the finished surface design model according to scanning;

D. the three-dimensional special-shaped steel net rack keel measurement control method comprises the following steps:

a. numbering each control point according to the established model, extracting the coordinates of the control points, and outputting point coordinate data;

b. after the steel mesh frame is temporarily fixed, control point measurement is carried out, and after the measurement is correct, solidification and welding can be carried out;

c. after the steel net frame is installed, retesting and correcting the control points of the steel net frame;

E. the method for measuring and controlling the atrium lighting apical membrane structure comprises the following steps:

the atrium daylighting roof adopts ETFE membrane structure, and membrane structure base steel pipe span is big, and the rail location that the steelframe slided is difficult, adopts automatic measuring robot to trail the location in real time. The process flow comprises the following steps: measuring and paying off, mounting a rear compensation embedded part, mounting a sliding track, mounting a steel mesh frame, positioning an automatic measuring robot, mounting a connecting piece, performing steel structure anticorrosion treatment, mounting a film structure steel-aluminum keel, mounting a film structure and mounting an aluminum alloy cover plate;

a. rechecking the precision of the axis on the existing building plane and the control point of the steel structure datum line;

b. measuring the plane positioning axis of each steel member from a plane datum line (point) by using an instrument, and marking the position near the installation position of each steel member by using red paint;

c. and measuring the X axis and the Y axis of the steel column by using a steel ruler by using the measuring datum line. The measured data should be corrected by adding temperature

The allowable error of the longitudinal axis and the transverse axis of the steel component in the measurement and control process of the atrium daylighting top film structure is 1 mm;

the temperature correction value in the process of measuring and controlling the atrium lighting top film structure is as follows: Δ L ═ L × (22-t)0.0012/m ℃ (mm), where t: atmospheric temperature (. degree. C.); l: the length (m) is measured.

In summary, the innovative precision measurement method in the double-distortion building construction comprises the following specific steps:

A. the measurement precision control of the large-span arc-shaped oblique crossing steel gallery of the upper cover of the subway comprises the following steps; the method is based on a total station, an electronic level, a GPS global positioning system, a three-dimensional laser scanner, the Internet of things and a wireless data transmission fusion multiple intelligent measurement technologies, solves the technical problems of measurement speed, precision, deformation and the like which are difficult to solve by a traditional measurement method in the specially-shaped large-span steel structure engineering, realizes effective control on the installation precision, quality and safety of the steel structure and the engineering progress, can determine the overall effect of the steel corridor after installation, determines the accumulated result of monitoring data, compares the accumulated result with a designed value, and compares the accumulated result with a standard quality acceptance standard;

B. the method comprises the following steps of controlling the measurement precision of the multi-angle oblique cylinder; a. projecting the central positions of the bottom surface and the top surface of the column by using the same surface, and then calculating the distance between the two circle centers; b. dividing the batter post of each floor, and finding out the respective inclination angle by taking the floor as a construction area according to a design drawing; c. calculating the three-dimensional positions of two elevation points of each construction section according to the inclination angle by using BIM, and then marking the dimension on the model as a basis for installing and checking the template in construction;

C. the measurement precision control method of the double-curved-surface porous aluminum plate curtain wall comprises the following steps of; a. establishing a space model coordinate system, establishing a primary model, finding out the difficulty and difficulty of measuring the paying-off and establishing a construction scheme through analyzing the model; b. extracting control point data, establishing an accurate three-dimensional solid model, and extracting and outputting control point coordinates from the model; c. the method comprises the following steps of (1) measuring and scanning a field structure, wherein a main body structure and a main body steel structure are measured, scanned and data are acquired before measurement is carried out on a curtain wall; d. and (3) laying the construction control network, firstly surveying the construction control network, and fully considering the conditions of visibility, coverage, survey station distance, building corners, measurement precision and the like to select the position of a proper measurement control point. Then fixing the special battens for measurement and the measurement nails with the cross wires at the positions of the control points and taking the measurement nails as the measurement control points; e. measuring the layout of mark points, reasonably arranging specific scanning stations of the scanner according to the early-stage site reconnaissance condition, and arranging chessboard targets and spherical targets for jointly measuring a scanning coordinate system and a construction coordinate system at each station of the scanner; f. and (3) field scanning of the three-dimensional laser scanner, and scanning the area to be detected in detail according to the station which is set by early exploration. In the scanning process, the data resolution and quality of the three-dimensional laser scanner are reasonably set to ensure the reliability of the data. During the scanning process, attention needs to be paid to the fact that a spherical target sphere plane target for coordinate joint measurement can be clearly identified; g. measuring the distributed plane target and the spherical target by adopting a high-precision total station, and reserving the plane target and the spherical target for later-stage coordinate system registration; h. comparing and analyzing the measured data and the model data, comparing and analyzing the processed field scanning data and the original design model, and issuing a comprehensive detection report; i. performing collision analysis on the basic point cloud data and the finished surface deepening data, and performing collision analysis on the actual point cloud data of the site and the finished surface design model according to scanning;

D. the three-dimensional special-shaped steel net rack keel measurement control method comprises the following steps of; a. numbering each control point according to the established model, extracting the coordinates of the control points, and outputting point coordinate data; b. after the steel mesh frame is temporarily fixed, control point measurement is carried out, and after the measurement is correct, solidification and welding can be carried out; c. after the steel net frame is installed, retesting and correcting the control points of the steel net frame;

E. the method comprises the steps of measuring and controlling the atrium daylighting apical membrane structure; the atrium daylighting roof adopts ETFE membrane structure, and membrane structure base steel pipe span is big, and the rail location that the steelframe slided is difficult, adopts automatic measuring robot to trail the location in real time. The process flow comprises the following steps: measuring and paying off, mounting a rear compensation embedded part, mounting a sliding track, mounting a steel mesh frame, positioning an automatic measuring robot, mounting a connecting piece, performing steel structure anticorrosion treatment, mounting a film structure steel-aluminum keel, mounting a film structure and mounting an aluminum alloy cover plate; a. rechecking the precision of the axis on the existing building plane and the control point of the steel structure datum line; b. measuring the plane positioning axis of each steel member from a plane datum line (point) by using an instrument, and marking the position near the installation position of each steel member by using red paint; c. and measuring the X axis and the Y axis of the steel column by using a steel ruler by using the measuring datum line. The measurement data should be corrected for temperature.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.