CN117627312A - Cantilever operation frame for high-altitude construction and construction method thereof - Google Patents

Abstract

The invention relates to an overhanging operation frame for high-altitude construction and a construction method thereof, and relates to the technical field of high-altitude overhanging operation frame construction, wherein the overhanging operation frame comprises overhanging trusses, the overhanging trusses are formed by erecting a plurality of single truss in parallel, the front sections of the overhanging trusses are fixed in a room through stabilizing frames and are tightly propped by propping up rods, the rear sections of the overhanging trusses extend out of the room and are tightly pulled by diagonal tension rods, and a single truss is at least matched with two propping up rods and one diagonal tension rod for fixation, so that the load born by the rear sections of the overhanging trusses is improved, and the safety in construction is ensured; a scaffold board is paved on the cantilever truss; the single truss is connected and assembled by adopting the fastener type steel pipes, two adjacent single trusses are connected by adopting the fastener type steel pipes, the tightening rod and the diagonal draw bar are both made of the fastener type steel pipes, the whole fastener type steel pipes are used as main bearing structures, the requirement on the overhanging operation frame in high-altitude construction is completed by using simpler materials and processes, the construction efficiency is improved, and the construction cost is reduced.

Description

A cantilevered work frame for high-altitude construction and its construction method

Technical field

The invention relates to the technical field of high-altitude cantilevered work frame construction, and in particular to a cantilevered work frame for high-altitude construction and a construction method thereof.

Background technique

In the existing technology, the traditional cantilevered work frame uses shaped steel as the supporting beam, and sets up a steel pipe frame on the shaped steel. The cost is high, the construction period is long, and the shaped steel is heavy, labor intensity is high for workers, and holes need to be drilled in the wall. , while increasing the installation process, it is easy to cause leakage. At the same time, the bearing capacity of the rear section of the cantilever truss cannot meet the construction needs, and the safety of construction personnel working on the cantilever work frame cannot be guaranteed.

Contents of the invention

In order to improve the deficiencies in the construction of cantilevered work frames in the above background technology, the present invention provides a cantilevered work frame for high-altitude construction and a construction method thereof.

The invention provides a cantilevered work frame for high-altitude construction and its construction method using the following technical solutions:

A cantilever work frame for high-altitude construction, including a cantilever truss. The cantilever truss is set up in parallel with multiple single-piece trusses. The cantilever truss is divided into a front section of the cantilever truss and a rear section of the cantilever truss through a wall. The front section of the cantilever truss is fixed inside the house through a stabilizer and is tightened by jacking rods. The rear section of the cantilever truss extends outside the house and is tightened by diagonal tie rods. The single-piece single-frame truss is equipped with at least two jacking rods. The rod and a diagonal tie rod are fixed to improve the bearing capacity of the rear section of the cantilever truss and ensure the safety of construction workers on the cantilever work frame; scaffolding boards are laid on the cantilever truss, and the outer end of the cantilever truss Install protective fences and hang dense mesh safety nets to facilitate construction workers and ensure their safety.

Preferably, the clamping rod and the diagonal tie rod are both made of fastener steel pipes. One end of the jacking rod is fastened to the inside of the wall and the other end is connected to the front section of the single truss and the stabilizer respectively; the diagonal tie rod One end is connected to the stabilizer and the other end is connected to the rear section of the single truss.

Preferably, the single-frame trusses are assembled and connected by fastener-type steel pipes, and two adjacent single-frame trusses are connected by fastener-type steel pipes.

A construction method of a cantilevered work frame for high-altitude construction, including the following steps:

S1. Conduct measurement and setting out positioning at the construction site;

S2, pre-assembled single truss;

S3. Erect the two pre-assembled single-frame trusses in the house and assemble them into a two-frame cantilever truss. According to the on-site wiring, determine that the distance between the two single-frame trusses is not greater than 1.5m;

S4. Slide the two cantilever trusses to the position where the wiring is good;

S5. Move the third piece of pre-assembled single-frame truss to one side of the two-frame cantilever truss and assemble it into a three-frame cantilever truss. Determine the third piece of single-frame truss and the two-frame cantilever according to the on-site laying out. The spacing between trusses shall not be greater than 1.5m;

S6. Set up floor-standing work scaffolding in the house, which also serves as a stabilizer, and connect and fix the three cantilever trusses and stabilizers through fastener-type steel pipes;

S7. Repeat the above steps to install the subsequent cantilever trusses and stabilizers until all are completed;

S8. Stretch the diagonal tie rods and install the jacking rods. The single-piece single-frame truss should be fixed with at least two jacking rods and one diagonal tie rod;

S9. Lay scaffolding boards on the cantilever trusses, install protective fences at the outer ends of the cantilever trusses and hang dense-mesh safety nets. The height of the dense-mesh safety nets shall not be less than 1.5m;

S10. Pass the inspection and acceptance.

To sum up, the present invention has the following beneficial technical effects:

1. The present invention uses fastener-type steel pipes as the main load-bearing structure as a whole, breaking through the traditional structural method of steel as supporting the main beam. There is no need to drill holes in the wall, avoiding later repairs and leakage and other quality risks, and using more reliable materials. Simple materials and processes meet the needs for cantilevered work frames in high-altitude construction, reduce the use of manpower and material resources, improve construction efficiency, reduce construction costs, and make each component easy to reuse.

2. The working scaffolding set up in the house also serves as a stabilizer to fix the front section of the cantilever truss. The single-piece single-frame truss should be fixed with at least two jacking rods and one diagonal tie rod to increase the bearing capacity of the rear section of the cantilever truss and ensure construction. Safety of personnel working on cantilevered work frames.

Description of drawings

Figure 1 is a schematic plan view of a cantilevered work frame used for high-altitude construction according to an embodiment of the present invention;

Figure 2 is a schematic three-dimensional structural diagram of a cantilevered work frame used for high-altitude construction according to an embodiment of the present invention;

Explanation of reference signs: 1. Cantilever truss; 2. Single truss; 3. Front section of cantilever truss; 4. Stabilizer; 5. Inside the house; 6. Tightening rod; 7. Rear section of the cantilever truss; 8. Outside the house. ; 9. Diagonal tie rod; 10. Scaffolding board; 11. Guardrail; 12. Dense mesh safety net; 13. Fastener type steel pipe; 14. Wall.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings 1-2.

The embodiment of the invention discloses a cantilevered work frame used for high-altitude construction and a construction method thereof.

Referring to Figures 1 and 2, a cantilever work frame for high-altitude construction includes a cantilever truss 1. The cantilever truss 1 is erected in parallel with multiple single-piece trusses 2. The cantilever truss 1 is divided into cantilevered parts by walls 14. The front section 3 of the cantilever truss and the rear section 7 of the cantilever truss. The front section 3 of the cantilever truss is fixed inside the house 5 through the stabilizer 4 and is tightened by the jacking rod 6. The rear section 7 of the cantilever truss extends to the outside of the house 8 and is pulled through the diagonal tie rod 9 Tight, the single-piece single-frame truss 2 is fixed with at least two tightening rods 6 and one diagonal tie rod 9 to improve the bearing capacity of the rear section of the cantilever truss 7 and ensure the safety of construction workers on the cantilever work frame; cantilever Scaffolding boards 10 are laid on the truss 1. A protective fence 11 is installed on the outer end of the cantilevered truss 1 and a dense mesh safety net 12 is hung.

Referring to Figures 1 and 2, both the jacking rod 6 and the diagonal tie rod 9 are made of fastener-type steel pipes 13. One end of the jacking rod 6 is fastened to the inside of the wall 14 and the other end is connected to the front section of the single truss 2 and the stabilizer respectively. 4, the wall 14 separates the interior 5 and the exterior 8; one end of the diagonal tie rod 9 is connected to the stabilizer 4 and the other end is connected to the rear section of the single truss 2.

Referring to Figure 2, the single-frame trusses 2 are connected and assembled by fastener-type steel pipes 13. Two adjacent single-frame trusses 2 are connected by fastener-type steel pipes 13.

The fastener type steel pipe 13 uses Q235 ordinary steel pipe and is provided with fasteners at both ends of the steel pipe. The fasteners are fastened with bolts. It is simple to install, easy to disassemble, and has superior performance. It ensures that the fasteners will not rust during use. The tightening torque meets the specified requirements.

Referring to Figures 1 and 2, a construction method of a cantilevered work frame for high-altitude construction includes the following steps:

S1. Conduct measurement and setting out positioning at the construction site;

S2. Pre-assembled single-frame truss 2. The single-frame truss 2 is assembled and connected by fastener-type steel pipes 13. This process breaks through the traditional construction method of steel as a supporting main beam. There is no need to drill holes in the wall and avoid later repairs. and quality risks such as leakage, use simpler materials and processes to meet the needs for cantilevered work frames in high-altitude construction, complete the erection of cantilevered work frames, and make each component easy to reuse;

S3. Erect the two pre-assembled single-frame trusses 2 in the house 5 and assemble them into a two-frame cantilever truss 1. The two single-frame trusses 2 are connected by a fastener steel pipe 13, which is determined according to the on-site wiring. The distance between two single-frame trusses 2 shall not be greater than 1.5m;

S4. Slide the two cantilever trusses 1 to the position where the wiring is good; since the cantilever truss 1 is assembled entirely from fastener-type steel pipes 13 and is relatively light in weight, this step can be lifted manually to complete the outward movement. Bit;

S5. Transport the third piece of pre-assembled single-frame truss 2 to one side of the two-frame cantilever truss 1 and assemble it into a three-frame cantilever truss 1. The third piece of single-frame truss 2 and the two-frame cantilever truss 1 are connected through fastener steel pipes 13. According to the on-site wiring, it is determined that the distance between the third single-piece truss 2 and the two-piece cantilever trusses 1 is not greater than 1.5m; by adding the installation of the single-piece single-piece truss 2 In this way, a small number of construction workers can complete the construction and reduce construction costs;

S6. Set up a floor-standing operating scaffolding in the house 5, which also serves as a stabilizer 4. Connect and fix the three cantilever trusses 1 and the stabilizer 4 through fastener steel pipes 13; the floor-standing operating scaffolding in the house 5 includes vertical poles, sweeping poles, vertical and horizontal horizontal poles, etc., to facilitate construction workers to fix the front section 3 of the cantilever truss while working inside the house.

S7. Repeat the above steps to install the subsequent cantilever truss 1 and stabilizer 4 until all are completed. Install scissor braces on the stabilizer 4 inside the house 5 and the cantilever truss 1 outside the house; the scissor braces are diagonal supports installed on the scaffolding. , in this embodiment, the rigidity and stability of the cantilever truss 1 are strengthened to ensure that it does not deform;

S8. Set up the diagonal tie rod 9 and install the jacking rod 6. The single-piece single-frame truss 2 is fixed with at least two jacking rods 6 and one diagonal tie rod 9; the jacking rod 6 offsets the front section of the single-frame truss 2 and the stabilizer 4. The resulting transverse horizontal slip force;

S9. Lay the scaffolding board 10 on the cantilever truss 1, install a protective fence 11 on the outer end of the cantilever truss 1 and hang a dense-mesh safety net 12. The height of the dense-mesh safety net 12 shall not be less than 1.5m, and the height of the dense-mesh safety net 12 shall be no less than 1.5m, and the safety net 12 shall be installed on the outer end of the cantilever truss 1. The lower part is equipped with skirting boards to fully surround and protect the construction area, making it convenient for construction workers to carry out construction and ensuring the safety of construction workers;

S10. After passing the inspection and acceptance, hang the acceptance sign, load limit sign, warning sign and safety slogan;

The implementation principle of a cantilevered work frame for high-altitude construction in the embodiment of the present invention is as follows: the present invention integrally uses fastener-type steel pipes as the main load-bearing structure to assemble the single-frame truss 2, and increases the installation form of the single-piece single-frame truss 2. , complete the assembly of the cantilever truss 1, and use fastener-type steel pipes 13 to tighten and cable-stay to increase the bearing capacity of the cantilever truss 1, and use simpler materials and processes to meet the needs for cantilever work frames in high-altitude construction.

The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be covered by the scope of protection of the present invention. Inside.

Claims (4)

1. A operation frame encorbelments for construction in high altitude, its characterized in that: the cantilever truss comprises cantilever trusses (1), wherein the cantilever trusses (1) are parallelly erected by adopting a plurality of single truss frames (2), the cantilever trusses (1) are divided into a cantilever truss front section (3) and a cantilever truss rear section (7) through a wall body (14), the cantilever truss front section (3) is fixed in a room (5) through a stabilizing frame (4) and is tightly jacked through a jacking rod (6), the cantilever truss rear section (7) extends out of the room (8) and is tightly tensioned through diagonal rods (9), and at least two jacking rods (6) and one diagonal rod (9) are matched with the single truss frames (2) to fix; the scaffold board (10) is paved on the cantilever truss (1), and a protective fence (11) is installed at the outer end of the cantilever truss (1) and a dense mesh safety net (12) is hung on the outer end of the cantilever truss.

2. The overhanging work rack for high-altitude construction according to claim 1, wherein: the jacking rod (6) and the diagonal draw bar (9) are both buckle type steel pipes (13), one end of the jacking rod (6) is jacked on the inner side of the wall body (14) and the other end of the jacking rod is respectively connected to the front section of the single truss (2) and the stabilizing frame (4); one end of the diagonal draw bar (9) is connected to the stabilizing frame (4) and the other end of the diagonal draw bar is connected to the rear section of the single truss (2).

3. The overhanging work rack for high-altitude construction according to claim 1, wherein: the single truss (2) is connected and spliced by adopting the fastener type steel pipes (13), and two adjacent single trusses (2) are connected by the fastener type steel pipes (13).

4. A construction method of the overhanging work rack for high-altitude construction according to any one of claims 2 to 3, comprising the steps of:

s1, measuring, paying-off and positioning on a construction site;

s2, pre-assembling a single truss (2);

s3, two pre-assembled single truss frames (2) are erected in a room (5) and assembled into two cantilever truss frames (1), and the distance between the two single truss frames (2) is not more than 1.5m according to on-site paying-off;

s4, sliding the cantilever trusses (1) of the two trusses to a well-paid-out position;

s5, carrying the third pre-assembled single truss (2) to one side of the two cantilever trusses (1) and assembling the third pre-assembled single truss into the three cantilever trusses (1), and determining that the distance between the third single truss (2) and the two cantilever trusses (1) is not more than 1.5m according to on-site paying-off;

s6, erecting a floor type operation scaffold in the house (5), simultaneously serving as a stabilizing frame (4), and connecting and fixing the cantilever trusses (1) of the three trusses and the stabilizing frame (4) through fastener type steel pipes (13);

s7, repeatedly installing the subsequent cantilever truss (1) and the stabilizing frame (4) according to the steps until all the cantilever truss and the stabilizing frame are completed;

s8, pulling the diagonal draw bar (9) and installing the jacking rods (6), and fixing the single truss (2) at least by matching with the two jacking rods (6) and the diagonal draw bar (9);

s9, paving a scaffold board (10) on the cantilever truss (1), installing a protective fence (11) at the outer end of the cantilever truss (1) and hanging a dense mesh safety net (12), wherein the height of the dense mesh safety net (12) is not less than 1.5m;

s10, detecting acceptance qualification.