Unit type curtain wall construction technology

Abstract

The invention discloses a unit type curtain wall construction technology, and belongs to the technical field of building construction. The construction process comprises the following steps: selecting a fixed-point setting marker on an installed unit plate adjacent to a to-be-installed position in advance, selecting a fixed-point setting total station on a floor corresponding to the installed unit plate, and selecting a fixed-point setting pressure sensor on the installed unit plate adjacent to the to-be-installed position and a unit code piece thereof, according to the method, a total station is installed on a to-be-installed unit plate, a data collection device is arranged on a corresponding floor of the installed unit plate, meanwhile, the data collection device is electrically connected with all pressure sensors, and the to-be-installed unit plate is lifted to the designated position through data measured by the total station and data obtained by the data collection device. And respectively calculating the three-dimensional coordinate change of each marker and the pressure change of each pressure sensor. And based on the change of the data, whether the to-be-installed unit plate has a safety risk after being hoisted to a specified position is evaluated, and data guidance is provided for safety construction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and particularly relates to a unit curtain wall construction process. BACKGROUND

[0002] The unit curtain wall is a basic unit of curtain wall structure which is made of various wall panels and supporting frames in a factory, and can be directly installed on the main structure. The unit curtain wall has the advantages of convenient installation, excellent waterproof performance and high construction efficiency, and has become the first choice for the external maintenance structure of high-rise buildings. At present, the construction method of the unit curtain wall generally adopts hoisting, that is, hoisting machinery is used to hoist the unit panel to the installation position, manual inspection is performed to check whether the unit panel is hoisted to the correct position, and then the unit panel is connected and reinforced with the unit code component. However, in the current construction process, attention is not paid to the change of the adjacent installed unit panel when the to-be-installed unit panel is hoisted to the installation position, and thus there is a certain safety risk. SUMMARY

[0003] The present application aims at the existing technical situation, and provides a unit curtain wall construction process which can evaluate whether there is a safety risk after the to-be-installed unit panel is hoisted to the specified position, and provide data guidance for safe construction.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: A unit curtain wall construction process comprises the following steps: Selecting a fixed point on the adjacent installed unit panel at the installation position to set a marker, and selecting a fixed point on the corresponding floor slab of the installed unit panel to set a total station, and measuring the three-dimensional coordinates of the marker relative to the total station by the total station; Selecting a fixed point on the adjacent installed unit panel at the installation position and the unit code component thereof to set a pressure sensor, and arranging a data acquisition device on the corresponding floor slab of the installed unit panel, and electrically connecting the data acquisition device with each pressure sensor, and acquiring the pressure information detected by each pressure sensor by the data acquisition device; Hoisting the to-be-installed unit panel to the installation position, so that the to-be-installed unit panel is in place in the horizontal and vertical directions, and calculating the three-dimensional coordinate change of each marker and the pressure change of each pressure sensor before and after the to-be-installed unit panel is hoisted to the specified position, and connecting and reinforcing the to-be-installed unit panel with the corresponding unit code component when the three-dimensional coordinate change of each marker is not greater than a first set threshold value and the pressure change of each pressure sensor is not greater than a second set threshold value.

[0005] Further, the step of hoisting the to-be-installed unit panel to the installation position is as follows: Hoisting the to-be-installed unit panel to the ground of the vertical transportation channel; The hanger is first installed to the unit block to be installed, and then the secondary protection rope on the hanger is connected with the unit block to be installed; The unit block to be installed is lifted to a position higher than the installation position, and then the unit block to be installed is lowered to a first preset distance between the hanging point of the unit block to be installed and the insertion height, and the unit block to be installed is stopped from descending, and the left-right direction insertion of the unit block to be installed is performed, and after the left-right direction insertion is completed, the unit block to be installed is seated on the upper groove of the lower installed unit block, and the unit block to be installed is inserted into the groove in the horizontal and vertical directions.

[0006] Further, the step of lifting the unit block to be installed to a position higher than the installation position is as follows: After the unit block to be installed is lifted to a position higher than the installation position along the cableway cable under the lifting traction of the winch, the electric hoist hook of the ring-shaped hoist rail is hung, then the electric hoist hook is lifted, and after the electric hoist hook is stressed, the winch hook is lowered, and after the winch hook is removed, it is lowered to the ground, and the next unit block to be installed is hoisted.

[0007] Further, the first preset distance is 200 mm.

[0008] Further, the marker is attached to the installed unit block, and the pressure sensor is attached to the installed unit block and the unit code component thereof.

[0009] Further, the marker is attached to the wall panel of the installed unit block.

[0010] Further, the marker is a prism.

[0011] Further, the pressure sensor is attached to the support frame of the installed unit block.

[0012] Further, the pressure sensor is a thin film pressure sensor.

[0013] Further, the data measured by the total station and the data acquired by the data acquisition device are wirelessly transmitted to the terminal equipment through the signal transmission device.

[0014] The beneficial effects of the present application are: The application provides a unit curtain wall construction process, which comprises the following steps: selecting and setting markers on adjacent installed unit blocks at a to-be-installed position, selecting and setting a total station on a corresponding floor of the installed unit blocks, selecting and setting pressure sensors on the adjacent installed unit blocks and unit components at the to-be-installed position, arranging a data acquisition device on the corresponding floor of the installed unit blocks, electrically connecting the data acquisition device and the pressure sensors, calculating the three-dimensional coordinate changes of the markers and the pressure changes of the pressure sensors before and after the to-be-installed unit blocks are hoisted to the specified position, and evaluating whether there is a safety risk after the to-be-installed unit blocks are hoisted to the specified position based on the changes of the above data, for example, whether the installed unit blocks sink, shift and deform, thereby providing data guidance for safe construction. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a flowchart of the unit curtain wall construction process. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the application clearer, the application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and do not limit the application.

[0017] For a certain project, the hoisting implementation scheme of the unit blocks is as follows: 1. Technical preparation 1) The design personnel organize the on-site installation workers to make technical disclosure, familiarize the technical structure characteristics of the unit curtain wall of the project, study the construction scheme in detail, and familiarize the quality standards, so that the workers master the technical points of each process. 2) The project manager organizes the on-site personnel to learn the hoisting scheme of the unit blocks, and focuses on learning and mastering the use specifications of the lifting appliance.

[0018] 3) Design appropriate block turnover frames according to the geometric dimensions and weight of the unit blocks. 4) Design appropriate lifting appliances and select appropriate electric hoists, lifting frames and other equipment according to the geometric dimensions and weight of the unit blocks and the hoisting method, and the selection of all machines and tools should have a certain safety factor.

[0019] 2. Personnel preparation 1) One hoisting machinery driver and one signal worker are arranged on the floor where the ring-shaped hoisting rail or winch is located, and are responsible for the operation and plane movement of the hoisting machinery. 2) 4-6 workers are arranged at the unit block hoisting position, of which one is a signal worker, and is responsible for the plane transportation and hoisting of the unit blocks. 3) In the installation layer of the unit block and the previous layer, each worker is responsible for the installation of the unit block. 4) Before the unit block is hoisted, each of the above personnel is in his position and solves his own safety protection measures. 3, site preparation before hoisting 1) In the installation layer of the unit block, check if there are protrusions on the building that affect the normal installation of the unit block. If found, they should be removed or chiseled out in time. 2) Remove the protective fence in time to ensure the normal installation of the unit block. At this time, a steel wire is tied between two adjacent structural columns, and the safety belt of the operator is tied to the steel wire rope to ensure the safety of the operator. When the installation is completed, the installation protective fence is restored. 3) Check if there are other types of work above and below the installation site to prevent falling objects from injuring personnel and blocks. 4, unit block hoisting Selecting a fixed point on the adjacent installed unit block at the installation position to set a marker, and selecting a fixed point on the corresponding floor of the installed unit block to set a total station, and measuring the three-dimensional coordinates of the marker relative to the total station through the total station; Selecting a fixed point on the adjacent installed unit block at the installation position and its unit code components to set a pressure sensor, and arranging a data acquisition device on the corresponding floor of the installed unit block, and simultaneously electrically connecting the data acquisition device with each pressure sensor, and acquiring the pressure information detected by each pressure sensor through the data acquisition device; Hoist the unit block to be installed to the installation position, so that the unit block to be installed is in place in the horizontal and vertical directions. Before and after the unit block to be installed is hoisted to the specified position, the three-dimensional coordinate changes (lateral coordinate change, longitudinal coordinate change, and vertical coordinate change) of each marker and the pressure changes of each pressure sensor are calculated respectively. When the three-dimensional coordinate changes of each marker are all not greater than a first set threshold, and the pressure changes of each pressure sensor are all not greater than a second set threshold, the unit block to be installed is connected and reinforced with the corresponding unit code components.

[0020] Among them, the data measured by the total station and the data acquired by the data acquisition device are wirelessly transmitted to the terminal device through the signal transmission device. The three-dimensional coordinate changes of each marker and the pressure changes of each pressure sensor are calculated in the terminal device.

[0021] In order to quickly set the marker and the pressure sensor, the marker is pasted on the installed unit block, and the pressure sensor is pasted on the installed unit block and its unit code components.

[0022] Specifically, the marker is pasted on the wall panel of the installed unit block, and the pressure sensor is pasted on the supporting frame of the installed unit block.

[0023] In this embodiment, the marker is exemplarily selected as a prism, and the pressure sensor is exemplarily selected as a thin film pressure sensor.

[0024] After the unit panel is hoisted, the elevation and the joint width of the unit panel are checked by using a level and a measuring scale. After the elevation of the unit panel meets the requirements, a waterproof gland is installed and glue is applied.

[0025] After the unit panel of each layer is hoisted, a closed water test of the drainage channel is performed. The steps of the closed water test of the drainage channel are as follows: Before the test, all the drainage holes are sealed. During the test, the drainage channel is filled with water and the water is maintained for at least 15 minutes. No water should leak into the inner side of the curtain wall.

[0026] According to the above design, the three-dimensional coordinate changes of each marker and the pressure changes of each pressure sensor are calculated before and after the unit panel to be installed is hoisted to the specified position by using the data measured by the total station and the data acquired by the data acquisition device. Whether there is a safety risk after the unit panel to be installed is hoisted to the specified position is evaluated based on the changes of the above data, such as whether the installed unit panel has phenomena such as subsidence, displacement and deformation, to provide data guidance for safe construction.

[0027] In the above technical solution, the step of hoisting the unit panel to be installed to the installation position is as follows: The unit panel to be installed is positioned on the ground of the vertical transportation channel; The hoist is first installed on the unit panel to be installed, and then the secondary protection rope on the hoist is connected with the unit panel to be installed; The unit panel to be installed is lifted to be higher than the installation position. Then, when the distance between the hanging point of the unit panel to be installed and the insertion positioning height is the first preset distance, the unit panel to be installed is commanded to stop descending, and the left-right direction insertion of the unit panel to be installed is performed. After the left-right direction insertion is completed, the unit panel to be installed is seated on the upper slot of the lower installed unit panel, so that the unit panel to be installed is in place in the horizontal and vertical directions.

[0028] The step of lifting the unit panel to be installed to be higher than the installation position is as follows: The unit panel to be installed is lifted to be higher than the installation position under the lifting traction of the winch (which has been deployed in advance), and then the electric hoist hook of the ring-shaped hoist track (which has been deployed in advance) is hung. Then, the electric hoist hook is lifted, and then the winch hook is lowered after the electric hoist hook is stressed. After the winch hook is removed, it is lowered to the ground, and the next unit panel to be installed is hoisted.

[0029] In this embodiment, the first preset distance is exemplarily 200 mm.

[0030] It should be noted that in the present application, the top-embedded groove type embedded part in the building body is connected with the groove type embedded part by using unit code components (for example, aluminum hanging code plus T-shaped bolts). Before hoisting the unit plate, the unit code components are arranged to be installed on the floor edge, and the grid size, elevation and access position of the unit code components are accurately positioned according to the measurement and line.

[0031] 5. Hoisting safety measures of the unit plate 1) The ground below the hoisting area of the unit plate must be provided with a prominent safety warning range, and during the hoisting process, a special safety monitor is arranged on the ground below the hoisting area, and non-hoisting personnel are prohibited from entering. 2) The floor installation personnel and professional hoisting workers must wear safety helmets, fasten safety belts and fix them firmly, and obey the unified command of the commander, and the tools must be worn with ropes to take good anti-falling measures during installation. 3) The safety officer should track and monitor the hoisting operation of the unit plate site throughout the process. 4) The equipment monitor is not allowed to leave the post during the hoisting process, and if any abnormal condition of the equipment is found, the hoisting group must be notified through the intercom, and the machine must be stopped for inspection. 5) Under any working condition, electric welding is not allowed to contact the steel wire rope of the crane, and the steel wire rope is not allowed to be damaged. Once the steel wire rope is found to be damaged, the full-time safety officer and the relevant professional personnel must be reported for treatment. 6) The braking system of the hoisting machinery should be adjusted regularly, and under the holding condition of the crane, the hoisted object should not slide after stopping. The self-made crane and the manual car welding seam should be free of cracks and displacement phenomena. 7) The connecting bolts of the hoist and the crane body should be free of loosening, shearing and bending deformation phenomena. 8) The hoisting machinery should pay attention to the waterproof problem in rainy days. The hand-held operation switch of the hoisting machinery must be kept dry, and a nylon bag should be used to pack it in rainy days to prevent moisture and electric leakage.

[0032] The present application is not limited to the above-mentioned specific embodiments, and those skilled in the art can use other various specific embodiments to implement the present application according to the disclosed content of the present application, therefore, any design using the design structure and idea of the present application, making some simple changes or modifications, falls within the protection scope of the present application.

Claims

1. A unitized curtain wall construction process, characterized in that: The method comprises the following steps: selecting and marking a marker on the installed unit slab adjacent to the installation position, and selecting and marking a total station on the corresponding floor of the installed unit slab, and measuring the three-dimensional coordinates of the marker relative to the total station; selecting and marking a pressure sensor on the installed unit slab and its unit code component adjacent to the installation position, and arranging a data acquisition device on the corresponding floor of the installed unit slab, and electrically connecting the data acquisition device with each pressure sensor, and acquiring the pressure information detected by each pressure sensor through the data acquisition device; hoisting the unit slab to be installed to the installation position, and making the unit slab to be installed in place in the horizontal and vertical directions, and calculating the three-dimensional coordinate changes of each marker and the pressure changes of each pressure sensor before and after the unit slab to be installed is hoisted to the designated position, and connecting and reinforcing the unit slab to be installed and the corresponding unit code component when the three-dimensional coordinate changes of each marker are all not greater than a first set threshold value and the pressure changes of each pressure sensor are all not greater than a second set threshold value.

2. The construction process of a unitized curtain wall according to claim 1, characterized in that: The steps of hoisting the unit slab to be installed to the installation position are as follows: placing the unit slab to be installed on the ground of the vertical transportation channel; firstly, adding a lifting tool to the unit slab to be installed, and then connecting a secondary protection rope on the lifting tool with the unit slab to be installed; lifting the unit slab to be installed to be higher than the installation position, and then making the unit slab to be installed descend to a first preset distance between the hanging point of the unit slab to be installed and the insertion height, and then commanding the unit slab to be installed to stop descending, and then inserting the unit slab to be installed in the left and right directions, and then placing the unit slab to be installed on the upper groove of the lower installed unit slab, and making the unit slab to be installed in place in the horizontal and vertical directions.

3. The construction process of a unitized curtain wall according to claim 2, characterized in that: The steps of lifting the unit slab to be installed to be higher than the installation position are as follows: making the unit slab to be installed ascend along the cableway cable rope under the lifting traction of the winch, and then hanging the electric hoist hook of the ring-shaped lifting rail, and then lifting the electric hoist hook, and then descending the winch hook after the electric hoist hook is stressed, and then placing the winch hook on the ground after the winch hook is removed, and then hoisting the next unit slab to be installed.

4. The construction process of a unitized curtain wall according to claim 2, characterized in that: The first preset distance is 200 mm.

5. The construction process of a unitized curtain wall according to claim 1, characterized in that: The marker is pasted on the installed unit slab, and the pressure sensor is pasted on the installed unit slab and its unit code component.

6. The construction process of a unitized curtain wall according to claim 5, characterized in that: The marker is pasted on the wall panel of the installed unit slab.

7. The construction process of a unitized curtain wall according to claim 6, characterized in that: The marker is a prism.

8. The unitized curtain wall construction process of claim 5, wherein: The pressure sensor is pasted on the supporting frame of the installed unit slab.

9. The unitized curtain wall construction process of claim 8, wherein: The pressure sensor is a thin film pressure sensor.

10. The construction process of a unitized curtain wall according to any one of claims 1 to 9, characterized in that: The data measured by the total station and the data acquired by the data acquisition device are wirelessly transmitted to the terminal device through the signal transmission device.

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