Steel column auxiliary mounting equipment for steel structure building and using method

Abstract

The invention relates to the field of steel structure buildings, and discloses steel column auxiliary mounting equipment for a steel structure building and a using method.The steel column auxiliary mounting equipment comprises a supporting steel column, a supporting steel beam, a cantilever steel beam, two lifting lugs, a chain block and a steel wire rope, and the two lifting lugs are arranged at the top of the outer end of the cantilever steel beam correspondingly; the chain blocks are connected to the lifting lugs on the side walls of the supporting steel columns or the supporting steel beams, and the other ends of the chain blocks are connected with the lifting lugs above the cantilever steel beams through steel wire ropes. By arranging the lifting lugs, the chain blocks and the steel wire ropes, safe supporting can be provided in the steel beam overhanging process, meanwhile, an operation platform does not need to be erected, the construction period is effectively shortened, and a large number of turnover materials and labor cost are saved.

Description

Technical Field

[0001] The invention relates to the field of steel structure buildings, and in particular to a steel column auxiliary installation device for steel structure buildings and a use method thereof. Background Art

[0002] Steel structure buildings are buildings that use steel plates or steel sections instead of reinforced concrete structures. Their strength and seismic resistance are greatly improved. Steel structure buildings can be manufactured in factories and installed on site, which greatly reduces the construction period. Steel can be reused, greatly reducing construction waste.

[0003] In the existing architectural style, cantilever structures with large spans are used more frequently. The load-bearing formwork of cantilever structures in traditional steel-concrete buildings is mostly constructed by ground-mounted steel pipe scaffolding or pre-buried I-beams in the concrete structure of the lower floor to build an operating platform, or by high-altitude splicing and other methods. For steel-structured buildings, the overall installation is mainly carried out by tower crane hoisting, and there will be no redundant structures on each floor. Therefore, for steel-structured buildings, the installation precision is high and the weight is heavy. In order to ensure construction safety, when installing cantilever structures, it is necessary to set up scaffolding to improve the safety factor. However, such a process is cumbersome, because after the cantilever is installed, it needs to be removed immediately to avoid the scaffolding affecting the crane hoisting. Such a construction method greatly affects the construction efficiency and increases the turnover material and labor costs. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and provide a steel column auxiliary installation device for steel structure buildings and a use method thereof.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A steel column auxiliary installation device for steel structure buildings includes a supporting steel column, a supporting steel beam and a cantilever steel beam. Multiple supporting steel columns pass through multiple supporting steel beams. The cantilever steel beam is fixed to the protruding end of the supporting steel beam through a connecting ear plate. It also includes a lifting lug, a fall chain and a steel wire rope. There are two lifting lugs, which are respectively arranged on the top of the outer end of the cantilever steel beam and on the side wall of the adjacent upper supporting steel column or supporting steel beam. The fall chain is connected to the lifting lug of the side wall of the supporting steel column or supporting steel beam, and the other end of the fall chain is connected to the lifting lug above the cantilever steel beam through a steel wire rope.

[0007] Both ends of the cantilever steel beam are processed with hanging points for suspension.

[0008] A method for using a steel column auxiliary installation device for a steel structure building comprises the following steps:

[0009] (1) Foundation construction: Build supporting steel columns on the ground or building foundation, and then connect them with supporting steel columns through supporting steel beams to form a supporting foundation. Then, build them upward in overlapping layers until you reach the upper layer where the steel beam needs to be cantilevered.

[0010] (2) Measurement and positioning: According to the length of the cantilever steel beam, set the lifting lugs on the supporting steel column or supporting steel beam, connect the fall chain to the lifting lugs, and confirm the length and direction of the fall chain. Then install the connecting lug plate on the supporting steel beam under the corresponding lifting lugs;

[0011] (3) Connecting the cantilever steel beam: Install lifting ropes on the hanging points at both ends of the cantilever steel beam, then use a crane to lift the lifting rope and lift the cantilever steel beam to the place where it needs to be cantilevered. Workers connect the wire rope to the lifting lug of the cantilever steel beam and connect the wire rope to one end of the fall chain. Then adjust the position of the cantilever steel beam, align its ends with the corresponding supporting steel beams, and fix them by connecting the lug plates.

[0012] In step (3), the verticality and lateral curvature of the cantilever steel beam must be corrected after installation.

[0013] After the cantilever steel beam is installed, it needs to be tested for flaws. After the flaw detection is qualified, the floor decking and floor reinforcement can be installed on the cantilever steel beam.

[0014] The steel column auxiliary installation device and use method for steel structure buildings provided by the present invention have the following beneficial effects:

[0015] (1) By setting up lifting lugs, fall chains and wire ropes, safe support can be provided during the cantilevering of steel beams, and no operating platform is required, which effectively shortens the construction period and saves a lot of turnover materials and labor costs;

[0016] (2) Through the use method, the use details of the lifting lugs, fall chains and wire ropes in the installation and construction of cantilever steel beams are improved, and the accuracy and quality of the cantilever steel beams are guaranteed while ensuring the stable performance of the steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure provided by an embodiment of the present invention.

[0019] Figure numerals: 1. Supporting steel column; 2. Supporting steel beam; 3. Cantilever steel beam; 4. Lifting eye; 5. Falling chain; 6. Steel wire rope; 7. Connecting ear plate; 8. Hanging point. DETAILED DESCRIPTION

[0020] Example

[0021] like Figure 1 As shown, the steel column auxiliary installation equipment for steel structure buildings provided in this embodiment includes a supporting steel column 1, a supporting steel beam 2, a cantilever steel beam 3, a lifting lug 4, a fall chain 5 and a steel wire rope 6. A plurality of supporting steel columns 1 pass through a plurality of supporting steel beams 2. The cantilever steel beam 3 is fixed to the protruding end of the supporting steel beam 2 through a connecting lug plate 7. There are two lifting lugs 4, which are respectively arranged on the top of the outer end of the cantilever steel beam 3 and on the side wall of the adjacent upper supporting steel column 1 or supporting steel beam 2. The fall chain 5 is connected to the lifting lug 4 of the side wall of the supporting steel column 1 or the supporting steel beam 2. The other end of the fall chain 5 is connected to the lifting lug 4 above the cantilever steel beam 3 through a steel wire rope 6. In order to facilitate the lifting of the cantilever steel beam 3, hanging points 8 for suspension are processed at both ends of the cantilever steel beam 3.

[0022] The method for using the steel column auxiliary installation equipment of the steel structure building includes the following steps:

[0023] (1) Foundation construction: Build a support steel column 1 on the ground or building foundation, and then connect it to the support steel column 1 through a support steel beam 2 to form a support foundation, and then build it up in sequence. The construction order of the support foundation is from inside to outside and from bottom to top, until it is built to the upper layer where the cantilever steel beam 3 is required, the purpose of which is to provide an installation position for the fall chain 5;

[0024] (2) Measurement and positioning: According to the length of the cantilever steel beam 3, the lifting lug 4 is set on the supporting steel column 1 or the supporting steel beam 2. The position of the lifting lug 4 is mainly determined by the length, thickness, layer height and other information of the cantilever steel beam 3. Before the lifting lug 4 is in place, it is necessary to re-measure to ensure the accuracy of the position. The thickness of the lifting lug 4 is made of 20mm thick steel plate. After the lifting lug 4 is installed, the fall chain 5 is connected to the lifting lug 4, and the length and direction of the fall chain 5 are confirmed. Then, the connecting lug plate 7 is installed on the supporting steel beam 2 below the corresponding lifting lug 4;

[0025] (3) Connecting the cantilever steel beam 3: Install lifting ropes on the hanging points 8 at both ends of the cantilever steel beam 3, and then use the crane to lift the lifting rope to lift the cantilever steel beam 3 to the place where the cantilever is required. The worker connects the wire rope 6 to the lifting ear 4 of the cantilever steel beam 3, and connects the wire rope 6 to one end of the fall chain 5. Then adjust the position of the cantilever steel beam 3, align its end with the corresponding supporting steel beam 2, and connect and fix it through the connecting ear plate 7. Before installing the connecting ear plate 7, it is necessary to confirm the length and direction of the fall chain 5 according to the axial position of the cantilever steel beam 3 and the surrounding environment. In order to improve stability, the end of the cantilever steel beam 3 needs to be arched by 10 mm. After the adjustment of the wire rope 6 and the fall chain 5 is completed, first use screws to temporarily fix them to the supporting steel beam 2 on one side of the supporting steel column 1 through the connecting ear plate 7, and then the cantilever steel beam 3 can be fixed under the support of the wire rope 6 and the fall chain 5. At this time, the crane can release the cantilever steel beam 3.

[0026] In order to improve stability, the verticality and lateral curvature of the cantilever steel beam 3 in step (3) must be corrected after installation, so that the verticality and lateral curvature of the cantilever steel beam 3 meet the requirements of the design specifications before the final bolt tightening and welding processing is carried out.

[0027] After the cantilever steel beam 3 is installed, it needs to be tested for flaw detection. After the flaw detection is qualified, the floor decking and floor reinforcement are installed on the cantilever steel beam 3. After the steel beam is installed, the floor decking is installed, and the reinforcement is woven on the floor decking to pour the concrete slab. After the concrete is formed, the auxiliary equipment such as the fall chain 5 is removed to build the next floor.

[0028] Repeat the above steps layer by layer to complete the structure from cantilevered steel beam to cantilevered steel structure.

[0029] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention shall be included in the protection scope of the present invention. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale, and the present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitation of the present invention.

Claims

1. A steel column auxiliary installation device for a steel structure building, comprising a supporting steel column (1), a supporting steel beam (2) and a cantilever steel beam (3), wherein a plurality of supporting steel columns (1) pass through a plurality of supporting steel beams (2), and the cantilever steel beam (3) is fixed to the protruding end of the supporting steel beam (2) through a connecting ear plate (7), characterized in that: It also includes a lifting lug (4), a fall chain (5) and a steel wire rope (6). There are two lifting lugs (4), which are respectively arranged on the top of the outer end of the cantilever steel beam (3) and on the side wall of the adjacent upper supporting steel column (1) or supporting steel beam (2). The fall chain (5) is connected to the lifting lug (4) on the side wall of the supporting steel column (1) or supporting steel beam (2), and the other end of the fall chain (5) is connected to the lifting lug (4) above the cantilever steel beam (3) through the steel wire rope (6).

2. The steel column auxiliary installation equipment for steel structure buildings according to claim 1 is characterized in that: Both ends of the cantilever steel beam (3) are processed with hanging points (8) for hanging.

3. A method for using a steel column auxiliary installation device for a steel structure building according to claim 1, characterized in that: The following steps are involved: (1) Foundation construction: construct a supporting steel column (1) on the ground or on a building foundation, and then connect the supporting steel column (1) with the supporting steel beam (2) to form a supporting foundation, and then build it upwards in overlapping layers until it reaches the upper layer where the cantilevered steel beam (3) is required; (2) Measurement and positioning: according to the length of the cantilever steel beam (3), a lifting lug (4) is set on the supporting steel column (1) or the supporting steel beam (2), and a fall chain (5) is connected to the lifting lug (4). At the same time, the length and direction of the fall chain (5) are confirmed, and then a connecting lug plate (7) is installed on the supporting steel beam (2) below the corresponding lifting lug (4); (3) Connecting the cantilever steel beam (3): Install lifting ropes on the hanging points (8) at both ends of the cantilever steel beam (3), then use a crane to lift the lifting rope to lift the cantilever steel beam (3) to the location where the cantilever is required. Workers connect the steel wire rope (6) to the lifting lug (4) of the cantilever steel beam (3), and connect the steel wire rope (6) to one end of the fall chain (5). Then adjust the position of the cantilever steel beam (3), align its ends with the corresponding supporting steel beam (2), and connect and fix them through the connecting lug plate (7).

4. The method for using the steel column auxiliary installation device for steel structure buildings according to claim 3 is characterized in that: In the step (3), the cantilever steel beam (3) is required to be corrected for verticality and lateral curvature after installation.

5. The method for using the steel column auxiliary installation device for steel structure buildings according to claim 3, characterized in that: After the cantilever steel beam (3) is installed, it is necessary to carry out a flaw detection test. After the flaw detection test is passed, the floor decking and floor reinforcement are installed on the cantilever steel beam (3).

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