Construction method for measuring a building curtain wall

Abstract

The application relates to a building curtain wall measurement construction method, and belongs to the technical field of building decoration engineering, and comprises the following steps: S1, first floor reference point and line arrangement; S2, reference point projection; S3, vertical projection of an axis control point; S4, elastic setting of a main control line; S5, plane map making of an external control point control network; and S6, interlayer elevation setting. In addition, a total station is used to perform tracking inspection on the periphery of a main body structure, so that displacement deformation of the building in a construction process is avoided, and the accuracy of the horizontal elevation is ensured; and the above steps are all performed when construction equipment and workers have lunch or stop construction. The application has the effect of improving the precision of measurement results.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building decoration engineering, and in particular to a building curtain wall measurement construction method. BACKGROUND

[0002] In the construction process of the building curtain wall, the measurement and setting-out is a key process for ensuring the construction quality. In order to ensure the measurement accuracy, in addition to being familiar with the drawings, precise total station, laser theodolite, laser pointing instrument, level, plumb, electronic computer and other instruments and equipment are selected for measurement and setting-out.

[0003] The existing measurement and setting-out method includes measurement of reference points, projection of reference points, setting of main control lines, arrangement of intersection points, arrangement of external control lines, setting of interlayer elevations, size closure of interlayer external control lines, review of interlayer external control lines, measurement of structural deviation, and measurement data arrangement and reporting.

[0004] According to the related technology in the above, the measurement is easily affected by the vibration of the building body to produce errors, resulting in inaccurate measurement results. SUMMARY

[0005] In order to improve the accuracy of the measurement results, the present application provides a building curtain wall measurement construction method.

[0006] The building curtain wall measurement construction method provided by the present application adopts the following technical scheme:

[0007] A building curtain wall measurement construction method comprises the following steps:

[0008] S1, first layer reference point and line arrangement: according to the reference point and line arrangement drawing, the reference point, line and original elevation point are reviewed; according to the first layer control axis, the first layer internal control network of the curtain wall is established, and the external control network is formed by moving the internal control network, and the control network is reviewed and corrected;

[0009] S2, projection of reference points: according to the overall height and floor of the curtain wall, the floor and number of the projected reference points are determined, a plumb instrument is erected, a laser receiving target is placed on the floor at the measurement hole position of each floor, and the reference points are projected by using the ink line;

[0010] S3, vertical projection of axis control points: the laser theodolite is erected at the floor reference point of the bottom layer and is leveled, the laser receiving target is moved so that the center of the laser receiving target is concentric with the laser beam emitted by the laser theodolite, and the laser receiving target is fixed;

[0011] S4, setting of main control lines: the total station is used to connect the adjacent measurement holes in the same floor;

[0012] S5, making a plane view of the external control point control network: arranging the control gridding points in the curtain wall gridding column seam, flush with the surface of the connecting piece, first making a template, and then constructing according to the template;

[0013] S6, setting the interlayer elevation: first find the reference elevation horizontal point, and use a steel ruler to measure vertically upward from the first floor starting elevation line until reaching the floor of the required survey elevation, and make clear marks;

[0014] In addition, the above steps are performed during the construction equipment and workers' lunch break or stop construction.

[0015] By adopting the above technical scheme, the reference points, lines and original elevation points are first reviewed, and the internal and external control networks are established and reviewed to achieve accurate arrangement of the first layer reference points and lines; the reference points of each floor are measured using a plumb instrument, the vertical measurement of the axis control points is realized by using a laser theodolite and a laser receiving target, the main control line is realized by using a total station to connect the line, and finally the plane view of the external control point control network is realized by making a template, and the interlayer elevation is set. The whole process is meticulous and accurate. When measuring the deviation of the steel structure, the left and right, in and out, and elevation of the steel structure can be directly measured and the size is in accordance with the outer decorative surface line. The whole process is performed during the construction equipment and workers' lunch break or stop construction. At this time, the elevator stops running and the building vibration is small, which can more effectively ensure the accuracy of the control point measurement to improve the accuracy of the measurement result.

[0016] Optionally, in S2, the laser receiving target is made of 300mmx300mmx5mm thick organic glass, and the upper surface of the laser receiving target has concentric circles with different radii and orthogonal coordinate lines.

[0017] By adopting the above technical scheme, the reference point measurement between each floor can be more accurately realized.

[0018] Optionally, in S5, the method for making a template includes: finding the in-out, left-right and elevation size of the distribution point corresponding to the axis of different floors according to the specific construction elevation, plane and node diagram, that is, establishing X, Y and Z three-dimensional coordinate data for each point; according to the relationship size between the reference point and the in-out and left-right of each axis, the main control line is made on the plane view, and then according to the relationship size data between the external control point and the reference point control network, each point is made on the plane view.

[0019] By adopting the above technical scheme, X, Y and Z three-dimensional coordinate data are first established, and then the main control line and the external control point are made on the plane view in sequence, so that the data of the template is more accurate.

[0020] Optionally, in S6, a 50-meter steel ruler is pulled straight on the steel structure to hang a 5-kilogram weight below, the datum elevation is copied to the steel ruler after the steel ruler is stationary, and a mark is made, the position of the floor height of the last floor on the steel ruler is calculated according to the position relationship of the datum elevation on the steel ruler, the reading of the horizontal instrument is copied to the indoor column or the shear wall, and a mark is made.

[0021] By adopting the technical scheme, the cooperation of the steel ruler and the horizontal instrument can improve the data accuracy of the interlayer elevation, and the operation is convenient.

[0022] Optionally, the time period of measuring the vertical upward measurement of the internal control point and the height control point is selected when the wind force is less than 4 levels.

[0023] By adopting the technical scheme, the influence of the wind force on the measurement accuracy can be avoided as much as possible.

[0024] Optionally, in the construction process, a total station instrument is used to track and check the outer periphery of the main structure.

[0025] By adopting the technical scheme, the displacement deformation of the building that may be generated in the construction process is monitored in real time, the accuracy of the horizontal elevation is ensured, and the measurement data accuracy can be further improved.

[0026] Optionally, the total station instrument comprises a tripod having three legs and a total station instrument body mounted on the top of the tripod, each leg of the tripod is hinged with a hinged plate, a universal wheel is mounted on the end of the hinged plate away from the corresponding leg, and an adjusting mechanism is arranged on the tripod to drive the three hinged plates to rotate at the same time, so that the three universal wheels rotate inward or outward at the same time, and the universal wheel can support the corresponding leg.

[0027] By adopting the technical scheme, the adjusting mechanism drives the three hinged plates to rotate at the same time, so that the three universal wheels support the tripod at the same time, the three legs are off the ground, the movement and carrying of the total station instrument are facilitated, and when the total station instrument is used, the three legs are arranged on the ground or the floor, and the three universal wheels are also supported on the ground or the floor, so that the stability of the total station instrument during use is improved, and the measurement data accuracy is further improved.

[0028] Optionally, the adjusting mechanism comprises a motor, a screw rod, a screw sleeve and three hinged rods, the motor is fixed upside down on the top of the tripod, the screw rod is vertically and rotatably connected to the middle of the tripod and coaxially fixed with the output shaft of the motor, the screw sleeve is threadedly connected to the screw rod, one end of the three hinged rods is hinged with the screw rod, and the other end is hinged with the corresponding hinged plate.

[0029] By adopting the technical scheme, the motor is started to rotate the screw rod, the screw sleeve is lifted on the screw rod, and the three hinged rods drive the three hinged plates to rotate, so that the height of the universal wheel is adjusted, and the height adjustment efficiency of the three universal wheels is improved.

[0030] Optionally, the hinged plate is penetrated by a bolt at the hinge with the corresponding supporting leg, the bolt is the rotation shaft of the hinged plate, and a nut is threadedly connected to the bolt.

[0031] By adopting the technical scheme, after the height of the universal wheel is adjusted by the adjusting mechanism, the bolt and the nut are tightened, the position of the universal wheel is further fixed, and the stability of the total station during use or movement is improved.

[0032] Optionally, the supporting leg is fixed with a clamping frame for inserting the hinged plate, the clamping frame comprises a connecting plate, a clamping plate and an outward expansion plate, the connecting plate is fixed with the supporting leg, the clamping plate is fixed on the side of the connecting plate away from the supporting leg, a clamping groove for inserting the hinged plate is formed between the connecting plate and the clamping plate, the opening of the clamping groove is provided with a necked portion, the connecting portion of the clamping plate and the connecting plate is deformable, and the outward expansion plate is fixed on one end of the clamping plate at the opening of the clamping groove; when the hinged plate is located in the clamping frame, the supporting leg is in a suspended state.

[0033] By adopting the technical scheme, when the adjusting mechanism drives the hinged plate to rotate towards the supporting leg, the hinged plate first extrudes the outward expansion plate, the connecting portion of the clamping plate and the connecting plate is deformed and rotated, until the hinged plate is completely inserted into the clamping groove, the clamping plate clamps and fixes the hinged plate, and the stability and safety of the total station during movement can be improved.

[0034] In summary, the present application has at least one of the following beneficial technical effects:

[0035] 1. The whole process is meticulous and accurate, the left and right, in and out, and elevation of the steel structure can be directly measured and sized according to the outer surface line, the whole process is carried out when the construction equipment and workers are on lunch break or stop construction, at this time the elevator stops running and the building vibration is small, which can more effectively ensure the control point measurement accuracy, so as to improve the accuracy of the measurement result;

[0036] 2. The adjusting mechanism drives the three hinged plates to rotate at the same time, so that the three universal wheels can support the tripod at the same time, which is convenient for the movement and carrying of the total station; the three supporting legs are erected on the ground or floor, and the three universal wheels are also supported on the ground or floor, which can improve the stability of the total station during use, and further improve the accuracy of the measurement data;

[0037] 3. The adjusting mechanism first extrudes the outer expansion plate when driving the hinged plate to rotate towards the leg, so that the connecting part of the clamping plate and the connecting plate is deformed and rotated, until the hinged plate is completely in the clamping groove, and the clamping plate clamps and fixes the hinged plate, so that the stability and safety of the total station during movement can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a construction step diagram of the embodiment of the application;

[0039] Figure 2 is a structural schematic diagram of a laser receiving target;

[0040] Figure 3 is a structural schematic diagram of a total station;

[0041] Figure 4 is a structural schematic diagram of a clamping frame.

[0042] In the figure, 1 is a total station body; 2 is a tripod; 21 is a leg; 22 is a mounting table; 3 is a hinged plate; 31 is a universal wheel; 4 is an adjusting mechanism; 41 is a motor; 42 is a screw rod; 43 is a screw sleeve; 44 is a hinged rod; 5 is a bolt; 51 is a nut; 6 is a clamping frame; 61 is a connecting plate; 62 is a clamping plate; 63 is an outer expansion plate; and 7 is a clamping groove. DETAILED DESCRIPTION

[0043] The following will be described in detail in combination with the accompanying Figures 1-4 The application will be further described in detail.

[0044] Reference Figure 1 The embodiment of the application discloses a kind of construction of building curtain wall measurement method, comprising the following steps:

[0045] S1, first layer reference point, line arrangement: surveyor enters site before line arrangement, and reference point line arrangement drawing is provided by owner party, and first layer original elevation point, according to reference point, line arrangement drawing, carry out recheck reference point, line and original elevation point, according to the data on the reference point and control network map provided by owner, with total station, reference point axis size, angle are checked and corrected, the error appeared is properly reasonably distributed, after checking confirmation, fill in axis, control line actual measurement angle, size, record table.According to first layer control axis, establish curtain wall first layer inner control network, then from inner control network, form outer control network by moving out, according to drawing design, control network is rechecked and corrected, so as to meet design and installation requirements.

[0046] S2, the benchmark point projection: before the projection of the benchmark point, arrange the construction personnel to clean up the concrete of the measurement hole position, according to the overall height of the curtain wall and the floor, determine the floor and the number of the benchmark point projection, and erect the vertical instrument, in order to ensure the accuracy of the axis vertical transmission, the benchmark point is accurately projected to each standard control floor at one time, and the axis control point is re-laid on the floor. When erecting the vertical instrument, it is necessary to repeatedly carry out leveling and centering adjustment in order to improve the measurement accuracy.

[0047] Reference Figure 2 After confirming that there is no error, the laser receiving target is placed on the floor at the hole position on each floor, and a cross is accurately popped with the ink bucket line, and the intersection of the cross is the benchmark point. The laser receiving target is made of 300mm x 300mm x 5mm thick organic glass, and the upper surface of the laser receiving target has concentric circles with different radii and orthogonal coordinate lines.

[0048] S3, vertical projection of axis control point: erect the laser theodolite at the first floor benchmark point, adjust the level after the power is turned on, and the laser beam is shot. Through focusing, the laser beam hits the smallest and clearest laser point on the working layer laser target. Move the laser receiving target so that the center of the laser receiving target is concentric with the laser beam shot by the laser theodolite, and fix the laser receiving target. After all the axis control points are projected to the floor, the angle and distance of the control axis are checked with the total station and the steel ruler.

[0049] S4, main control line setting: after the benchmark point is projected, make a polystyrene board with the same size as the measurement hole at the position of the adjacent two measurement holes on each floor, and insert it into the hole. The polystyrene board remains flat with the floor surface; according to the ink line intersection of the cross line made previously, the total station is erected on the ink line intersection to review each benchmark point. After the benchmark point is reviewed without error, the total station is operated to connect the two benchmark points with a straight line. First, erect the instrument on the measurement hole and adjust the centering and leveling, so that the instrument is completely aligned with the benchmark point in the horizontal state. Focus the ocular on the other benchmark point corresponding to the benchmark point of the erected instrument, adjust the crosshair in the ocular and center the benchmark point, and lock the instrument direction. Then use red and blue pencils and ink buckets to connect the two benchmark points with a straight line with the total station or theodolite. After the first adjustment measurement, the total station is rotated by 180° and re-measured. If there is an error, take the intermediate value. Similarly, connect and set up the other main control lines.

[0050] S5, making of the plane drawing of the external control point control network: the control points are arranged in the curtain wall grid column seam, and are flush with the surface of the connecting piece. A model drawing is made in the computer first, and then the construction is carried out according to the model drawing. The model drawing is made as follows: the distribution points are found out in the corresponding axis of different floors according to the specific construction facade, plane, node drawing, that is, the three-dimensional coordinate data of each point is established X, Y, Z; the relationship size of the curtain wall external control point and the axis is obtained according to the reference point control network and the relationship size of the control network and the axis; the above known data is converted into the relationship size of the curtain wall external control point and the reference point control network; the model drawing is made according to the relationship size of the reference point and the axis of each axis, and the main control line is drawn on the plane drawing; then the relationship size data of the external control point and the reference point control network is calculated according to the second step, and each point is drawn on the plane drawing. The remaining three surfaces are all positioned and drawn on the plane drawing by the same method.

[0051] S6, on-site external control point and line arrangement: according to the layout plane drawing, the theodolite is erected on the floor main control line point corresponding to the curtain wall positioning, and the positioning is rotated 90 degrees from the main control line as the starting point. After the positioning is completed, the ink bucket is used for line connection, and then the corresponding size is measured from the main control line point along the 90-degree ink line by using the steel tape, so as to position one point of the curtain wall column in and out, left and right, that is, the positioning of each point X, Y coordinate. Then the level is used to check whether the point is at the theoretical elevation point, that is, the positioning of each point Z coordinate. The support is made of L50 angle steel, and is fixed on the floor by expansion bolt at the positioning position. Each support must be kept at the same height as the corresponding point. The grid line is extended to the support by using the ink bucket. The steel support is positioned on the steel support along the ink line by using the new tape, and the hole is punched at the marked point by using Ф2.8 twist drill. The external control points are positioned on each surface of the floor by using the method. After all the external control points are positioned, the steel wire is used to connect the corresponding points of the upper and lower floors, so as to complete the external line arrangement.

[0052] After the completion of the release must be double detection of external control points, to ensure the size of the external control line accurate: with a steel tape on each single independent plane four edge small grid size closure. Again with the level of 1 m line on the steel wire on the corresponding height of the tape to do a 1 m mark. Finally, with a steel tape for each layer of the outer control line size closure. In order to timely and accurate observation of the structure of the displacement of the accurate data, must be every day on the site of the structure review, check data and timely feedback design to make corresponding solutions. For example, to facilitate the structure of the inspection convenient, simple, accurate, timely, the outer control points in the first layer of re placed once, so that the first layer of the outer control point and the vertical projection of each floor of the outer control line point overlap. So every day as long as the laser plumb instrument set up in the first layer of the outer control point, open the laser vertical switch, check whether the laser point coincides with each floor of the outer control point, can check whether the structure has displacement, check the results of the same day feedback designer, timely response plan. Avoid the construction error caused by the structure, to ensure the smooth construction of the project

[0053] S7, the setting of the interlayer elevation: first find the reference elevation level point. Measure to the first floor to facilitate the vertical scale position, check eligible as the starting elevation line, and pop the ink line, with red paint to mark the elevation data, in order to facilitate the mutual check. The vertical transmission of elevation, with a steel ruler from the first floor starting elevation line vertically upward to take or with the method of suspended steel ruler and level instrument to cooperate, until the need to measure the elevation of the floor, and make a clear mark. On the steel structure to pull a 50 meter steel ruler down to hang a 5 kg weight. After the steel ruler is stationary, copy the reference elevation to the steel ruler, and make a mark with a pen. According to the position of the reference elevation on the steel ruler, calculate the position of the floor height on the steel ruler. With the level of its reading to the indoor column or shear wall, and make a clear mark. In this way, the upper floors are set. Before the completion of the construction and installation, all the height marks and horizontal marks must be clear and complete, and cannot be eliminated or damaged

[0054] In addition, considering the displacement and deformation of the whole building during the construction process, to ensure the accuracy of the horizontal elevation, use total station instrument to track and check the outer periphery of the main structure; and the above steps are carried out when the wind is less than 4 levels, and the construction equipment and workers are on lunch break or stop construction. Can try to avoid the influence of wind on the measurement, and at this time there is no influence of other construction team construction, the elevator stops running, the building vibration is small, which can effectively ensure the measurement accuracy of the control point, and finally improve the accuracy of the measurement result.

[0055] Reference Figure 3The total station used in the construction method comprises a total station body 1 and a tripod 2 installed below the total station body 1, the tripod 2 comprises three supporting legs 21 and a mounting table 22, the top ends of the supporting legs 21 are hinged to the lower surface of the mounting table 22, and the total station body 1 is installed on the mounting table 22. Each supporting leg 21 is hinged to a hinge plate 3 at a position close to the lower side, the three hinge plates 3 are close to each other at the ends away from the corresponding supporting legs 21, the bottom end of each hinge plate 3 is provided with a universal wheel 31, and the tripod 2 is provided with an adjusting mechanism 4 for simultaneously driving the three hinge plates 3 to rotate. The adjusting mechanism 4 drives the hinge plate 3 to rotate outward, so that the universal wheel 31 can support the corresponding supporting leg 21 to make the supporting leg 21 suspended, thereby improving the convenience and stability of the total station when moving; and when the three universal wheels 31 are in contact with the ground or the floor, the tripod 2 can be supported, thereby improving the stability of the total station when in use.

[0056] With reference to Figure 3 The adjusting mechanism 4 comprises a motor 41 fixed upside down on the mounting table 22, a screw rod 42 vertically and rotatably connected to the bottom of the mounting table 22 and coaxially fixed with the output shaft of the motor 41, a screw sleeve 43 threadedly connected to the screw rod 42, and a hinge rod 44 hingedly connected between the outer side wall of the screw sleeve 43 and the corresponding hinge plate 3. The motor 41 drives the screw rod 42 to rotate to make the screw sleeve 43 ascend and descend, the screw sleeve 43 drives the corresponding three hinge plates 3 to rotate through the three hinge rods 44, and the height adjustment efficiency of the universal wheel 31 is improved.

[0057] With reference to Figure 4 The hinge between the hinge plate 3 and the corresponding supporting leg 21 is provided with a bolt 5 and a nut 51, the bolt 5 penetrates the hinge plate 3 and the supporting leg 21, the nut 51 is threadedly connected to the bolt 5, the bolt 5 is the rotating shaft of the hinge plate 3, and after the position of the universal wheel 31 is adjusted, the bolt 5 and the nut 51 are tightened, so that the position stability of the universal wheel 31 is further improved, thereby improving the stability and safety of the total station when in use or moving.

[0058] With reference to Figure 4 Each supporting leg 21 is fixed with a clamping frame 6 for inserting the corresponding hinge plate 3, the supporting leg 21 is in a suspended state when the hinge plate 3 is inserted into the clamping frame 6, and at this time, the length direction of the hinge plate 3 is consistent with that of the corresponding supporting leg 21; the clamping frame 6 comprises a connecting plate 61 fixed with the supporting leg 21, a clamping plate 62 fixed on the side of the connecting plate 61 away from the supporting leg 21, and an outward expansion plate 63 fixed on the side of the clamping plate 62 away from the supporting leg 21, the connecting plate 61 and the clamping plate 62 are rotationally deformed at the connection position, the connection position between the outward expansion plate 63 and the clamping plate 62 is arc-shaped, the connecting plate 61, the clamping plate 62 and the supporting leg 21 form a clamping groove 7 for inserting the hinge plate 3, and the clamping plate 62 is obliquely arranged, so that the opening of the clamping groove 7 is in a conical shape.

[0059] When the adjusting mechanism 4 drives the hinged plate 3 to rotate to the support leg 21, the hinged plate 3 first extrudes the outer expansion plate 63, so that the connecting part of the clamping plate 62 and the connecting plate 61 is bent and deformed, until the hinged plate 3 is completely in the clamping groove 7, at this time, the clamping plate 62 clamps and fixes the hinged plate 3, which can further improve the stability of the total station when moving, and no extra steps are generated, and the operation is convenient.

[0060] The embodiments of the specific implementation are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A method of measuring construction of a building curtain wall, characterized by: The method comprises the following steps: S1, first layer reference point and line arrangement: according to the reference point and line arrangement drawing, the reference point and line and the original elevation point are reviewed; according to the first layer control axis, the inner control network of the first layer of the curtain wall is established, then the outer control network is formed by moving out from the inner control network, and the control network is reviewed and corrected; S2, reference point surveying: according to the overall height and floor of the curtain wall, the floor and quantity of the surveying reference point are determined, a plumb instrument is erected, a laser receiving target is placed on the floor at the measuring hole position of each floor, and the reference point is popped out by using the ink bucket line; S3, vertical surveying of axis control points: after the laser theodolite is erected at the floor reference point of the bottom layer, leveling is performed, the laser receiving target is moved so that the center of the laser receiving target is concentric with the laser beam emitted by the laser theodolite, and the laser receiving target is fixed; S4, main control line setting: the total station instrument is used to perform the connection work between adjacent measuring holes of the same floor; S5, outer control point control network plan drawing: the control gridding points are arranged in the curtain wall gridding column joints, flush with the surface of the connecting piece, a model drawing is first made, and then the model drawing is used for construction; S6, interlayer elevation setting: the reference elevation horizontal point is found first, a steel ruler is used to vertically measure from the first layer starting elevation line, until the floor of the required surveying elevation is reached, and obvious marks are made; In addition, the above steps are all performed during the construction equipment and workers' lunch break or construction stoppage; In S5, the model drawing method comprises: finding out the in-out, left-right and elevation size of the distribution points on the corresponding axis of different floors according to the specific construction facade, plane and node diagram, that is, establishing X, Y and Z three-dimensional coordinate data for each point; according to the calculated relationship size of the reference point and the axis in-out and left-right, the main control line is drawn on the plan drawing, and then according to the relationship size data of the outer control point and the reference point control network, each point is drawn on the plan drawing; During the construction process, the total station instrument is used to perform tracking inspection on the outer periphery of the main structure; The total station instrument comprises a tripod (2) with three legs (21) and a total station instrument body (1) mounted on the top of the tripod (2), each leg (21) of the tripod (2) is hinged with a hinge plate (3), the end of the hinge plate (3) away from the corresponding leg (21) is provided with a universal wheel (31), the tripod (2) is provided with an adjusting mechanism (4) for simultaneously driving the three hinge plates (3) to rotate, so that the three universal wheels (31) simultaneously rotate inward or outward, and the universal wheel (31) can support the corresponding leg (21); The adjusting mechanism (4) comprises a motor (41), a screw rod (42), a screw sleeve (43) and three hinge rods (44), the motor (41) is fixed upside down on the top of the tripod (2), the screw rod (42) is vertically rotatably connected in the middle of the tripod (2) and coaxially fixed with the output shaft of the motor (41), the screw sleeve (43) is threadedly connected on the screw rod (42), and one end of the three hinge rods (44) is hinged with the screw rod (42), and the other end is hinged with the corresponding hinge plate (3). A bolt (5) is threaded through the hinge between the hinge plate (3) and the corresponding leg (21), the bolt (5) is the rotation axis of the hinge plate (3), and a nut (51) is threaded on the bolt (5); The leg (21) is fixed with a clamping frame (6) for inserting the hinge plate (3), the clamping frame (6) comprises a connecting plate (61), a clamping plate (62) and an expanding plate (63), the connecting plate (61) is fixed with the leg (21), the clamping plate (62) is fixed on the side of the connecting plate (61) away from the leg (21), the connecting plate (61) and the clamping plate (62) form a clamping groove (7) for inserting the hinge plate (3) therebetween, the opening of the clamping groove (7) is provided with a conical portion, the connecting portion between the clamping plate (62) and the connecting plate (61) is deformable, and the expanding plate (63) is fixed on one end of the clamping plate (62) at the opening of the clamping groove (7); when the hinge plate (3) is located in the clamping frame (6), the leg (21) is in a suspended state.

2. The construction curtain wall measuring construction method according to claim 1, characterized in that: In S2, the laser receiving target is made of 300mm*300mm*5mm thick organic glass, and the upper surface of the laser receiving target has concentric circles with different radii and orthogonal coordinate lines.

3. The construction curtain wall measuring construction method according to claim 1, characterized in that: In S6, a 50-meter steel ruler is straightened on the steel structure, a 5-kilogram weight is hung below, after the steel ruler is stationary, the reference elevation is copied to the steel ruler and marked, the position of the last floor height on the steel ruler is calculated according to the position relationship of the reference elevation on the steel ruler, the reading of the level is copied to the indoor column or shear wall and marked.

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