Hanging construction platform module and construction method of high altitude large cantilever steel roof truss

Abstract

The present invention relates to a hanging construction platform module and construction method for a high-altitude large cantilever steel roof truss, characterized in that: it includes a platform pedal, a work platform frame connected by a truss and a plurality of horizontal connecting rods, a plurality of reverse-hanging connecting rods are fixed on one side of the work platform frame corresponding to the construction wall, a protective railing is provided on the side of the work platform frame equipped with the reverse-hanging connecting rod and on the side adjacent to the reverse-hanging connecting rod, a plurality of lower connecting rods are provided on the side corresponding to the reverse-hanging connecting rod at the bottom of the work platform frame, and the two ends of the horizontal connecting rod are respectively connected to the truss. The advantages are: in the construction of a high-altitude large cantilever reinforced concrete slope roof, the hanging construction platform module is adopted, which can be flexibly arranged according to the size of the working surface, has a fast transportation speed, high turnover efficiency, greatly improves the construction efficiency, and will not be limited by the bearing capacity of the soil around the building, and has a very wide range of applications. Its safety protection facilities can be flexibly configured according to the actual construction situation, greatly improving the personal safety of construction personnel.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a hanging construction platform module of a high-altitude large cantilever steel roof truss and a construction method. Background Art

[0002] At present, the roof of the project is a reinforced concrete slope roof, and the cantilever length of the roof eaves is 4.2m, the cantilever height is 50.1m, and the plate thickness is 0.12m. It is necessary to set up a ground-type scaffolding support frame to complete the construction operations such as formwork and pouring. The above construction operations have the following defects: 1. The height of the ground-type scaffolding support frame exceeds 50m, which has a great risk factor. According to the requirements of the specifications, it is necessary to design construction drawings and conduct safety demonstrations. The safety assurance measures must be comprehensive and the implementation is extremely difficult. 2. The top of the frame needs to be cantilevered outward, with a maximum cantilever length of about 6.2m. In order to ensure the overall stability of the frame, the spacing of the rods must be increased, which will inevitably lead to the investment of a large amount of steel pipes, connectors and other materials, which will greatly increase the construction and use costs, and the risk factor is greater. 3. The roof eaves decoration process requires an independent operating platform. It is necessary to remove part of the scaffolding on the top of the support frame and transform it according to the requirements of the construction platform. The frame occupies a long time and the construction cost has increased significantly. 4. Setting up ground-based scaffolding and renovating construction platforms consumes a huge amount of manpower and machinery shifts, and the construction period is long. Summary of the invention

[0003] In order to solve the technical problems existing in the known technology, the present invention provides a hanging construction platform module and construction method for a high-altitude large cantilever steel roof truss, which has a simple structure, is easy to install and dismantle quickly, has flexible layout, has high turnover efficiency, and can greatly improve the personal safety of construction workers and construction efficiency.

[0004] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is:

[0005] The hanging construction platform module of the high-altitude large cantilever steel roof truss is characterized by: comprising a platform pedal, a working platform frame composed of a truss and a plurality of horizontal connecting rods, a plurality of reverse-hanging connecting rods are fixed on the side of the working platform frame corresponding to the construction wall, a protective railing is provided on the side of the working platform frame equipped with the reverse-hanging connecting rod and on the side adjacent to the reverse-hanging connecting rod, a plurality of lower connecting rods are provided on the side of the bottom of the working platform frame corresponding to the reverse-hanging connecting rod, and both ends of the horizontal connecting rod are respectively connected to the truss.

[0006] The present invention can also adopt the following technical solutions:

[0007] Preferably, a guardrail is fixedly connected to one side of the working platform frame on which an inverted connecting rod is installed and on a side adjacent to the inverted connecting rod, both ends of the horizontal connecting rod are respectively fixedly connected to the truss, and the guardrail is formed by welding square steel pipes.

[0008] Preferably, the inverted hanging connecting rod is formed by welding square steel pipes, and a square hook is made at the upper end of the inverted hanging connecting rod for inverted hanging in the metal gutter of a high-altitude large cantilever steel roof truss. Two diagonal bracing rods are welded in the square hook at the upper end of the inverted hanging connecting rod, and an anti-bending diagonal rod is provided at the lower part of the inverted hanging connecting rod.

[0009] Preferably, a platform pedal is installed on the truss of the working platform frame, and at least two layers of horizontal connecting rods are connected to the working platform frame.

[0010] Preferably, the platform pedal is made of a combination of a bamboo footboard, a multi-layer formwork and a metal strip pedal that can meet its load requirements.

[0011] Preferably, a guardrail connecting socket is formed on the reverse hanging connecting rod, and horizontal connecting rod connecting sockets are respectively formed on the trusses adjacent to the reverse hanging connecting rod. The guardrail is plugged into the reverse hanging connecting rod through the guardrail connecting socket, and the two ends of the horizontal connecting rod are respectively plugged and connected to the horizontal connecting rod connecting sockets of the truss, and the guardrail is formed by welding square steel pipes.

[0012] Preferably, the lower connecting rod is made of a square steel pipe, and the lower connecting rod is welded to the working platform frame and the wall connecting piece respectively.

[0013] A construction method for a hanging construction platform module of a high-altitude large cantilever steel roof truss, characterized in that it comprises the following steps:

[0014] S1. Preparation for hoisting of the hanging construction platform module

[0015] Pull the prepared downward-hanging construction platform module to the vertical position below the lifting position, recheck each node of the downward-hanging construction platform module, and check the lifting machinery, lifting equipment and lifting points.

[0016] S2. Hoisting and debugging of the hanging construction platform module

[0017] Lower the hoisting rope of the winch and connect it to the lifting point of the hanging construction platform module and lift it slowly. After it is 50 cm from the ground, check the stress condition of each lifting point in detail. Then lift the hanging construction platform module to the installation position, check each fulcrum, and then adjust the hanging construction platform module away from the installation position and slowly drop it to the ground. Check the lifting equipment and the hanging construction platform module, and the lifting and debugging are completed.

[0018] S3. Formal hoisting of the construction platform module

[0019] a. When lifting the hanging construction platform module, pause when it is 50cm from the ground, check the verticality and horizontality of the hanging construction platform module before continuing to lift.

[0020] b. Control the shaking during the lifting process through two wind cables.

[0021] c. After hoisting the down-hanging construction platform module to the height of the metal gutter, place the inverted connecting rod of the down-hanging construction platform module into the metal gutter, use the tension of the wind cable to cooperate with the horizontal movement of the lifting equipment, move the down-hanging construction platform module in parallel to the installation position, slowly drop the down-hanging construction platform module, place the square hook of the inverted connecting rod of the down-hanging construction platform module in the metal gutter, and place the stress point at the lower end on the outer side of the wall and column. After correcting the position, fix it rigidly with fasteners, and protect it with a soft connection of steel ropes to the cantilever steel beam. At this time, the lifting equipment can be released and reset to prepare for hoisting the next down-hanging construction platform module.

[0022] d. Use the same method to install the subsequent hanging construction platform modules.

[0023] f. After a set of hanging construction platform modules are fully installed, check the square hooks and high-strength bolt connection points of each anti-hanging connecting rod, and lay the platform pedals.

[0024] g. Use the steel roof truss beams to hang four steel wire safety ropes on the steel roof truss beams, and hang the construction workers' safety belts on the safety ropes.

[0025] h. After the hanging construction platform module is installed in place, immediately install the protective railings on the outside of the hanging construction platform module. The height shall not be less than 1.2m, and the spacing between the middle protective railings shall not be greater than 30cm.

[0026] i. According to actual needs, tension bolt hangers are set between the hanging construction platform module and the cantilevered steel beam.

[0027] S4. Remove the hanging construction platform module

[0028] a. Mark out the work area, set up a cordon, and prohibit pedestrians from entering.

[0029] b. First remove the outer protective railings of the hanging construction platform module, and use the lifting equipment to hoist the protective railings to the ground in time.

[0030] c. Thoroughly check whether the hard and soft connections between the hanging construction platform modules and the walls and steel roof trusses are all detached from the stress points. After ensuring that they are correct, lift them one by one to the next installation location and install and fix them in time.

[0031] The advantages and positive effects of the present invention are as follows: since the present invention adopts the above-mentioned technical scheme, in the construction of high-altitude large cantilever reinforced concrete slope roofs, a hanging construction platform composed of hanging construction platform modules is adopted, which can not only be flexibly arranged according to the size of the working surface, but also has a fast transportation speed and high turnover efficiency, greatly improving the construction efficiency, and will not be limited by the bearing capacity of the soil around the building, and has a very wide range of applications. Its safety protection facilities can be flexibly configured according to the actual construction situation, greatly improving the personal safety of construction personnel. The hanging construction platform module has a simple structure, can greatly shorten the production cycle, and the production materials are common and low in cost. In addition, the damage rate of the hanging construction platform module components is low and can be recycled. The hanging construction platform module has a fast installation and dismantling speed, and the erection and disassembly process does not require additional hoisting machinery, which provides convenient conditions for cross-operation. Compared with the traditional floor-standing support frame work platform production and construction, the construction cost of the hanging construction platform module can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a front view of Embodiment 1 of the present invention;

[0033] Figure 2 yes Figure 1 Right view of;

[0034] Figure 3 yes Figure 1 A top view of

[0035] Figure 4 is a construction status diagram of embodiment 1 of the present invention;

[0036] Figure 5 is a front view of Embodiment 2 of the present invention;

[0037] Figure 6 yes Figure 5 Right view of;

[0038] Figure 7 yes Figure 5 A top view of

[0039] Fig. 8A is a structural diagram of a horizontal connecting rod according to Embodiment 2 of the present invention;

[0040] Figure 8B yes Fig. 8A Side view of

[0041] Fig. 9 It is a construction status diagram of embodiment 2 of the present invention.

[0042] In the figure: 1. working platform frame; 1-1. truss; 1-2. horizontal connecting rod; 2. platform pedal; 3. reverse hanging connecting rod; 3-1. square hook; 3-2. bending-resistant diagonal rod; 4. guardrail; 5. lower connecting rod; 6. guardrail connecting socket; 7. horizontal connecting rod connecting socket; 8. cantilever steel beam; 9. metal gutter.

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] Example 1, please refer to Figure 1-Figure 3 ,

[0045] The hanging construction platform module of the high-altitude large cantilever steel roof truss includes a platform pedal 2, an operating platform frame 1 which is fixedly connected by a truss 1-1 and a horizontal connecting rod 1-2, a plurality of reverse-hanging connecting rods 3 are fixed on one side of the operating platform frame corresponding to the construction wall, a guardrail 4 is fixedly connected to the side of the operating platform frame on which the reverse-hanging connecting rod 3 is installed and to the truss adjacent to the reverse-hanging connecting rod, a plurality of lower connecting rods 5 are arranged on one side of the bottom of the operating platform frame corresponding to the reverse-hanging connecting rod, and both ends of the horizontal connecting rod are respectively fixedly connected to the truss.

[0046] Specifically, the reverse-hanging connecting rod is welded by square steel pipes, and a square hook 3-1 is formed on the upper end of the reverse-hanging connecting rod for reverse hanging in the metal gutter of the high-altitude large cantilever steel roof frame. Two diagonal braces are welded in the square hook on the upper end of the reverse-hanging connecting rod, and a bending-resistant diagonal rod 3-2 is provided at the lower part of the reverse-hanging connecting rod. The reverse-hanging connecting rod is reversely hung in the metal gutter 9 of the high-altitude large cantilever steel roof frame, and the lower end of the reverse-hanging connecting rod is welded to the work platform frame.

[0047] Specifically, a platform pedal 2 is installed on the truss 1-1 of the working platform frame, and at least two layers of horizontal connecting rods 1-2 are fixedly connected to the working platform frame.

[0048] Specifically, the platform pedal is made of a combination of a bamboo footboard, a multi-layer template and a metal strip pedal that can meet its load requirements.

[0049] Specifically, the guardrail 4 is formed by welding square steel pipes.

[0050] Specifically, the lower connecting rod 5 is made of a square steel pipe, and the lower connecting rod is welded to the working platform frame and the wall connecting piece respectively.

[0051] Before hoisting the hanging construction platform module, it is necessary to hoist the cantilever steel beam first. Before hoisting the cantilever steel beam, first determine the reference point and the cantilever steel beam positioning line. The roof steel frame components are hoisted from the middle of the roof to the outside by a tower crane or a car crane. The cantilever steel beam 8 should be installed symmetrically from north to south. Before hoisting the inclined beam, the cantilever short beam GL2 should be connected to the inclined beam first. The position of the lifting point should be calculated in advance before hoisting. After hoisting in place, the inclined beam should be bolted to the horizontal steel beam that has been installed on the roof. After the bolts are pre-connected, the outer frame column is put in place. After the axis position and horizontal elevation are confirmed to be correct, the horizontal support and the lateral support are welded and connected.

[0052] Before hoisting the side beam, the short beam vertically connected to it is first connected to the ground to form a T-beam. After determining the hoisting point, hoisting begins. When hoisted to the installation height, the control personnel pull ropes at both ends of the T-beam to adjust its angle and position. The workers at the eaves position initially fix the connecting parts of the T-beam to the installation position. After the elevation and position are verified and qualified, welding and tightening processes are carried out at the same time. Other span steel beams are hoisted and fixed in turn according to this method.

[0053] Installation of metal gutters on the roof (roof gutter construction)

[0054] The size of the metal gutter 9 should meet the roof drainage flow requirements and be able to match the cantilevered steel beam of the high-altitude large cantilevered steel roof truss structure, and can be uniformly manufactured and processed by the manufacturer. The metal gutter is installed on the outer end and side beam of the cantilevered steel beam of the high-altitude large cantilevered steel roof truss structure, and the full-length angle steel is used as the base of the metal gutter. The angle steel cantilevered steel beam and the side beam are welded and connected. The metal gutter and the angle steel are connected by special connectors, and are hoisted by manual labor, tower cranes, truck cranes and other equipment. The relevant specifications can be met during construction.

[0055] Production of the hanging construction platform module of the present invention

[0056] The length, width and height of the hanging construction platform module can be adjusted according to the bearing capacity performance of the load-bearing components and the process requirements, as long as the safety requirements are met.

[0057] The modules of the lower hanging platform can be welded and assembled by yourself according to the design drawings, with special attention paid to the quality of the welds and anti-rust measures.

[0058] See also Figure 4 ,

[0059] A construction method for a hanging construction platform module of a high-altitude large cantilever steel roof truss comprises the following steps:

[0060] S1. Preparation for hoisting of the hanging construction platform module

[0061] Pull the prepared downward-hanging construction platform module to the vertical position below the lifting position, recheck each node of the downward-hanging construction platform module to ensure a firm connection; check the lifting machinery, lifting equipment, lifting points, etc. to ensure lifting safety.

[0062] S2. Hoisting and debugging of the hanging construction platform module

[0063] Lower the hoist rope of the winch and connect it to the hanging point of the hanging construction platform module and slowly lift it. After 50cm from the ground, check the stress of each hanging point in detail. After ensuring that there are no problems, lift the hanging construction platform module to the installation position and check each force point. After the inspection, do not fix it first. Then adjust the hanging construction platform module away from the installation position and slowly drop it to the ground. Check the hoisting equipment and the hanging construction platform module. If any problems are found, correct them in time. The lifting and debugging are completed.

[0064] S3. Formal hoisting of the construction platform module

[0065] a. First, lift the hanging construction platform module 50cm off the ground and pause, check the verticality and horizontality of the hanging construction platform module before continuing to lift.

[0066] b. Control the shaking during the lifting process through two wind cables.

[0067] c. After hoisting the down-hanging construction platform module to the height of the metal gutter, place the reverse-hanging connecting rod 3 of the down-hanging construction platform module into the metal gutter, use the wind cable tension to cooperate with the horizontal movement of the lifting equipment, move the down-hanging construction platform module parallel to the installation position, slowly drop the down-hanging construction platform module, and place the square hook of the reverse-hanging connecting rod of the down-hanging construction platform module into the metal gutter. To prevent the reverse-hanging connecting rod from damaging the metal gutter, it is advisable to add a pad at the force point. The lower end force point of the down-hanging construction platform module is placed on the outer side of the wall and column. After the position is corrected, it is rigidly connected and fixed by expansion bolts and other means, and the cantilever steel beam is protected by a soft connection with a steel rope. At this time, the lifting equipment can be unhooked and reset to prepare for hoisting the next down-hanging construction platform module.

[0068] d. Use the same method to install the subsequent hanging construction platform modules.

[0069] f. After a set of hanging construction platform modules are fully installed, check the square hooks and high-strength bolt connection points of each anti-hanging connecting rod. Professional quality inspection personnel and professional safety personnel check each important connection point to ensure that it is 100% correct before laying the platform pedal 2, which is laid on the truss 1-1.

[0070] g. Use cantilevered steel beams to hang four steel safety ropes on the steel roof truss beams, and hang the construction workers' safety belts on the safety ropes to ensure the personal safety of the construction workers.

[0071] h. After the hanging construction platform module is installed in place, immediately install the guardrail 4 on the outside of the hanging construction platform module. The height of the guardrail shall not be less than 1.2m, and the spacing between the middle guardrails shall not be greater than 30cm.

[0072] i. According to actual needs, tension bolt hangers are set between the hanging construction platform module and the cantilever steel beam, which can improve the bearing capacity and safety of the hanging construction platform.

[0073] S4. Remove the hanging construction platform module

[0074] a. Mark out the work area, set up a cordon, and prohibit pedestrians from entering.

[0075] b. First remove the outer protective railings of the hanging construction platform module, and use the lifting equipment to hoist the protective railings to the ground in time.

[0076] c. Thoroughly check whether the hard and soft connections between the hanging construction platform modules and the walls and steel roof trusses are all detached from the stress points. After ensuring that they are correct, lift them one by one to the next installation location and install and fix them in time.

[0077] Example 2, please refer to Figure 5-8B ,

[0078] The hanging construction platform module of the high-altitude large cantilever steel roof truss includes a working platform frame 1 which is connected by a platform pedal 2, a truss 1-1 and a horizontal connecting rod 1-2. A plurality of reverse-hanging connecting rods 3 are fixed on one side of the working platform frame corresponding to the construction wall. The reverse-hanging connecting rods are provided with guardrail connecting sockets 6. Horizontal connecting rod connecting sockets 7 are respectively provided on the trusses adjacent to the reverse-hanging connecting rods. A guardrail 4 is plugged into the reverse-hanging connecting rods through the guardrail connecting sockets. Both ends of the horizontal connecting rods are respectively plugged into the horizontal connecting rod connecting sockets 7 of the truss. The guardrail is welded by square steel pipes. A plurality of lower connecting rods 5 are provided on the side of the bottom of the working platform frame corresponding to the reverse-hanging connecting rod.

[0079] Specifically, the reverse-hanging connecting rod is welded by square steel pipes, and a square hook portion 3-1 is formed at the upper end of the reverse-hanging connecting rod for reverse hanging in the metal gutter 9 of the cantilever steel beam 8, two diagonal braces are welded in the square hook portion at the upper end of the reverse-hanging connecting rod, and a bending-resistant diagonal rod 3-2 is provided at the lower part of the reverse-hanging connecting rod. The reverse-hanging connecting rod is reversely hung in the metal gutter of the large cantilever steel roof frame, and the lower end of the reverse-hanging connecting rod is welded and connected to the working platform frame.

[0080] Specifically, a platform pedal 2 is installed on the truss 1-1 of the working platform frame, and at least two layers of horizontal connecting rods 1-2 are inserted on the working platform frame.

[0081] Specifically, the platform pedal is made of a combination of a bamboo footboard, a multi-layer template and a metal strip pedal that can meet its load requirements.

[0082] Specifically, a guardrail connecting socket is formed on the reverse hanging connecting rod, and horizontal connecting rod connecting sockets are respectively formed on the trusses adjacent to the reverse hanging connecting rod. The guardrail is plugged into the reverse hanging connecting rod through the guardrail connecting socket, and the two ends of the horizontal connecting rod are respectively plugged into and connected with the horizontal connecting rod connecting sockets of the truss.

[0083] Specifically, both ends of the horizontal connecting rod are provided with plugs matching with the horizontal connecting rod connection sockets 7 on the truss.

[0084] Specifically, the guardrail 4 is formed by welding square steel pipes, and plugs matching with the guardrail connection sockets 6 are formed at both ends of the guardrail.

[0085] Specifically, the lower connecting rod 5 is made of a square steel pipe, and the lower connecting rod is welded to the working platform frame and the wall connecting piece respectively.

[0086] The number of the reverse-hanging connecting rods, trusses, and lower connecting rods in the lower-hanging construction platform module can be increased or reduced according to parameters such as the actual weight of the platform and the design load.

[0087] The length, width and height of the hanging construction platform module can be adjusted according to the bearing capacity performance of the load-bearing components and the process requirements, as long as the safety requirements are met.

[0088] The construction steps of Example 2 of the present invention are as follows:

[0089] See also Fig. 9 ,

[0090] S1. Preparation for hoisting of the hanging construction platform module:

[0091] Weld the inverted connecting rod 3, square hook 3-1, truss 1-1, anti-bending diagonal rod 3-2, lower connecting rod 5 and guardrail connecting socket 6, horizontal connecting rod connecting socket 7 in the hanging construction platform module on the ground to form a hook-type truss, and transport it to the vertical bottom of the lifting position to check whether the position of each lifting point is accurate, check the operation of the lifting machinery and the safety of the lifting equipment, and check whether the lifting point connection is firm; hang the lifting rope and wind cable according to the design requirements.

[0092] S2. Hoisting and debugging of the hanging construction platform module:

[0093] Lower the hoist rope of the winch and connect it to the hanging point of the hanging construction platform module and slowly lift it. After 50cm from the ground, check the stress of each hanging point in detail. After ensuring that there are no problems, lift the hanging construction platform module to the installation position and check each force point. After the inspection, do not fix it first. Then adjust the hanging construction platform module away from the installation position and slowly drop it to the ground. Check the hoisting equipment and the hanging construction platform module. If any problems are found, correct them in time. The lifting and debugging are completed.

[0094] S3. Hoisting of assembled hanging construction platform module:

[0095] a. Lift the hook-type truss first, and stop when it is 50cm above the ground. Check the hook, rope, guy rope, etc., and continue lifting after confirming that there are no safety hazards.

[0096] After lifting to the height of the metal gutter 9, place the square hook of the hanging construction platform module into the metal gutter 9, use the tension of the wind cable to cooperate with the horizontal movement of the lifting equipment, move it parallel to the installation position, and slowly drop it. In order to prevent the square hook of the inverted hook truss from damaging the metal gutter, it is advisable to add a pad at the fulcrum position. After the lower part of the inverted hook truss is corrected, it is rigidly connected and fixed with the shear wall, column or concrete cantilever eaves and other structures through expansion bolts, and protected by a soft connection with the cantilever steel beam 8 with a steel rope. At this time, the lifting equipment can release the hook and reset it, and lift the remaining inverted hook trusses in turn, and strictly control their verticality, elevation and spacing, and accept them in time.

[0097] b. Hoist the horizontal connecting rods 1-2, and stop when they are 50cm above the ground. Check the hooks, ropes, and guy ropes, and continue hoisting after confirming that there are no safety hazards. First, hoist the horizontal connecting rods to the concrete roof, and then transport them to the installation location by manual delivery. After the installation and fixation of the barbed truss is completed and accepted, you can start plugging in the horizontal connecting rods. When plugging in the horizontal connecting rods, work from near to far, with two people working together.

[0098] c. Hoist the platform pedal 2, and stop when it is 50cm above the ground, check the hook, rope, guy rope, etc., and continue hoisting after confirming that there are no safety hazards. Hoist the platform pedal to the concrete roof first, and start installing the platform pedal step by step after the horizontal connecting rod is plugged in and passed the acceptance. During installation, one person delivers and two people lay and adjust from near to far.

[0099] d. Hoist the guardrail 4, and stop when it is 50cm above the ground. Check the hook, rope, guy rope, etc., and continue hoisting after confirming that there are no safety hazards. Hoist the guardrail directly to the location where the platform pedal has been laid. It is advisable to transport it in small quantities and multiple times, and install it immediately after hoisting. Do not pile it in large quantities on the hanging construction platform to prevent safety accidents.

[0100] e. Use cantilevered steel beams to hang four steel safety ropes on the steel roof truss beams, and hang the construction workers' safety belts on the safety ropes to ensure the personal safety of the construction workers.

[0101] f. According to actual needs, tension bolt hangers are set between the hanging construction platform module and the cantilevered steel beam, which can improve the bearing capacity and safety of the hanging construction platform.

[0102] The number of the reverse-hanging connecting rods, trusses, and lower connecting rods in the lower-hanging construction platform module can be increased or reduced according to parameters such as the actual weight of the platform and the design load.

[0103] The length, width and height of the hanging construction platform module can be adjusted according to the bearing capacity performance of the load-bearing components and the process requirements, as long as the safety requirements are met.

Claims

1. A construction platform module hanging down from a high-altitude large cantilever steel roof truss, characterized by: It includes a platform pedal, a working platform frame formed by connecting a truss and a plurality of horizontal connecting rods, a plurality of reverse-hanging connecting rods are fixed on a side of the working platform frame opposite to the construction wall, a guardrail is provided on the side of the working platform frame equipped with the reverse-hanging connecting rod and on the side adjacent to the reverse-hanging connecting rod, a plurality of lower connecting rods are provided on the side of the bottom of the working platform frame opposite to the reverse-hanging connecting rod, and both ends of the horizontal connecting rods are respectively connected to the trusses; the lower connecting rods are made of square steel pipes, and are respectively welded to the working platform frame and the wall connecting parts.

2. The hanging construction platform module of the high altitude large cantilever steel roof truss according to claim 1 is characterized by: A guardrail is fixedly connected on one side of the working platform frame equipped with an inverted connecting rod and on the side adjacent to the inverted connecting rod. Both ends of the horizontal connecting rod are fixedly connected to the truss respectively, and the guardrail is formed by welding square steel pipes.

3. The hanging construction platform module of the high altitude large cantilever steel roof truss according to claim 1 is characterized by: The inverted hanging connecting rod is formed by welding square steel pipes, and a square hook portion for inverted hanging in the metal gutter of a high-altitude large cantilever steel roof frame is formed at the upper end of the inverted hanging connecting rod. Two diagonal bracing rods are welded in the square hook portion at the upper end of the inverted hanging connecting rod, and an anti-bending diagonal rod is provided at the lower part of the inverted hanging connecting rod.

4. The hanging construction platform module of the high altitude large cantilever steel roof truss according to claim 1 is characterized by: The truss of the working platform frame is provided with a platform pedal, and the working platform frame is connected with at least two layers of horizontal connecting rods.

5. The hanging construction platform module of the high altitude large cantilever steel roof truss according to claim 1 is characterized by: The platform pedal is made of a combination of a bamboo footboard, a multi-layer template and a metal strip pedal that can meet its load requirements.

6. The hanging construction platform module of the high altitude large cantilever steel roof truss according to claim 1 is characterized by: The reverse hanging connecting rod is provided with a guardrail connecting socket, and the trusses adjacent to the reverse hanging connecting rod are respectively provided with horizontal connecting rod connecting sockets. The reverse hanging connecting rod is connected with a guardrail through the guardrail connecting socket, and the two ends of the horizontal connecting rod are respectively connected with the horizontal connecting rod connecting sockets of the truss, and the guardrail is formed by welding square steel pipes.

7. A construction method using a construction platform module hanging down from a high altitude large cantilever steel roof truss according to any one of claims 1 to 6, characterized in that: The steps include: S1. Preparation for hoisting of the hanging construction platform module Pull the prepared hanging construction platform module to the vertical position below the lifting position, recheck each node of the hanging construction platform module, and check the lifting machinery, lifting equipment and lifting points; S2. Hoisting and debugging of the construction platform module Lower the hoist rope of the winch and connect it to the lifting point of the hanging construction platform module and slowly lift it. After it is 50cm from the ground, check the force of each lifting point in detail. Then lift the hanging construction platform module to the installation position, check each force point, and then adjust the hanging construction platform module away from the installation position and slowly drop it to the ground. Check the lifting equipment and the hanging construction platform module. The lifting and debugging are completed. S3. Formal hoisting of the construction platform module a. When lifting the hanging construction platform module, stop when it is 50cm off the ground, check the verticality and horizontality of the hanging construction platform module before continuing to lift; b. Control the shaking during the lifting process through two wind cables; c. After hoisting the down-hanging construction platform module to the height of the metal gutter, place the inverted connecting rod of the down-hanging construction platform module into the metal gutter, use the tension of the wind cable to cooperate with the horizontal movement of the hoisting equipment, move the down-hanging construction platform module parallel to the installation position, slowly drop the down-hanging construction platform module, place the square hook of the inverted connecting rod of the down-hanging construction platform module into the metal gutter, and place the lower end stress point on the outer side of the wall and column. After correcting the position, fix it rigidly with fasteners, and protect it with the cantilever steel beam with a soft connection of steel rope. At this time, the hoisting equipment can be unhooked and reset, ready to hoist the next down-hanging construction platform module; d. Install the subsequent hanging construction platform modules in the same way; f. After all modules of a set of hanging construction platforms are installed, check the square hooks and high-strength bolt connection points of each reverse hanging connecting rod, and lay the platform pedals; g. Use the steel roof beams to hang four steel wire safety ropes on the steel roof beams, and the construction workers' safety belts are hung on the safety ropes; h. After the hanging construction platform module is installed in place, the protective railings on the outside of the hanging construction platform module shall be installed immediately. The height shall not be less than 1.2m, and the spacing between the middle protective railings shall not be greater than 30cm; i. According to actual needs, tension bolt hangers are set between the hanging construction platform module and the cantilever steel beam; S4. Remove the hanging construction platform module a. Mark out the work area, set up a cordon, and prohibit pedestrians from entering; b. First remove the outer protective railings of the hanging construction platform module and hoist it to the ground in time with the hoisting equipment; c. Thoroughly check whether the hard and soft connections between the hanging construction platform modules and the walls and steel roof trusses are all detached from the stress points. After ensuring that they are correct, lift them one by one to the next installation location and install and fix them in time.

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