Steel trestle structure on basement top plate

Abstract

The utility model relates to a steel trestle structure on a basement top plate, which is used for crawler crane construction and comprises a steel trestle body and a slope connecting structure which are arranged above the basement top plate, the steel trestle body is formed by crossing a plurality of cross beams and two longitudinal beams, a trestle column is arranged at the bottom of the steel trestle body, and the slope connecting structure is arranged on the steel trestle body. The trestle column is arranged on the top of the basement structure column or supported on the ground. According to the steel trestle structure on the basement top plate, concrete frame columns on an existing basement bottom plate are reasonably utilized to be combined with a steel trestle system, so that the basement top plate is prevented from being damaged by construction machinery during hoisting construction of a top plate steel structural member, damage of an existing completed structure is avoided, and the construction efficiency is improved. Repair and reinforcement of structures such as a top plate and a beam after hoisting construction of the steel structure are avoided. Meanwhile, the problem that steel structure hoisting construction requirements cannot be met due to insufficient bearing capacity of the top plate is solved. And the safety of the steel structure hoisting process is ensured, so that the whole construction process of the upper steel structure is more reliable and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a steel trestle structure on a basement top plate. Background Art

[0002] With the rapid development of domestic steel structure construction technology, the use of crawler cranes in steel structure construction has seen rapid growth. Steel trestle construction, which assists in construction, has gained widespread application both domestically and internationally. However, with the widespread use of construction trestle, the challenges of different structural types and lifting conditions, particularly in handling heavy loads and large construction areas, have become crucial to project success. The construction of steel trestle bridges on basement ceilings to assist crawler cranes in steel structure construction, is relatively rare in China. Therefore, with trestle bridges on basement ceilings, heavy lifting loads, and a wide construction area, ensuring their overall stability and protecting the completed underground project are key issues to address in steel trestle design and construction. Utility Model Content

[0003] The utility model aims to solve the problem of how to construct a trestle to meet the needs of using a crawler crane on the top of an underground structure in existing building construction. The specific technical solution adopted is: a steel trestle structure on a basement roof for crawler crane construction, comprising: a steel trestle body and a slope structure arranged above the basement roof, the steel trestle body being composed of a plurality of cross beams and two longitudinal beams intersecting, a trestle column being provided at the bottom of the steel trestle body, and the trestle column being arranged on the top of the basement structure column or supported on the ground.

[0004] A further improvement is that the slope connection structure includes a ramp beam whose extension direction is consistent with the longitudinal beam and is connected to the longitudinal beam, and a support column is provided at the bottom of the ramp beam.

[0005] A further improvement is that an independent foundation is provided at a position corresponding to the support column, an embedded part is provided at the top of the independent foundation, and the support column is fixed on the embedded part.

[0006] A further improvement is that the portion of the steel structure in the basement structural column that extends above the ground is provided with a corbel, and the crossbeam is provided on the corbel.

[0007] A further improvement is that the cross beams, the longitudinal beams and the trestle columns of the steel structure are all box-type structures.

[0008] A further improvement is that a connecting beam is provided between the longitudinal beams between two adjacent transverse beams.

[0009] The beneficial effects of this utility model include: rationally utilizing the concrete frame columns on the existing basement floor in conjunction with a steel trestle system to protect the basement roof from damage by construction machinery during the installation of the roof steel structure, thus avoiding damage to the existing structure and the need for repair and reinforcement of the roof, beams, and other structures after the steel structure is installed. Furthermore, it addresses the issue of insufficient roof bearing capacity, which could prevent the steel structure from being installed safely, ensuring the safety of the steel structure installation process and making the entire upper steel structure construction process more reliable and efficient.

[0010] The utility model provides a steel trestle structure on a basement top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0012] Figure 1 This is a structural diagram of a steel trestle structure on a basement roof according to the present invention;

[0013] Figure 2 It is a schematic diagram of the steel trestle main body structure of the utility model. DETAILED DESCRIPTION

[0014] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0015] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of a utility model, "plurality" means two or more, unless otherwise specifically defined.

[0017] In utility models, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in utility models based on specific circumstances.

[0018] like Figure 1 As shown, the utility model provides a steel trestle structure on the top plate of a basement, which is used for crawler crane construction, including: a steel trestle body 1 and a slope structure 2 arranged above the top plate of the basement, wherein the steel trestle body 1 is fixedly connected to the slope structure 2, and the steel trestle body 1 is composed of a plurality of cross beams 11 and two longitudinal beams 12 cross-welded and fixedly connected, wherein the two longitudinal beams 12 serve as walking tracks for the crawler crane, and a trestle column 13 for supporting the steel trestle body 1 is fixedly provided at the bottom of the steel trestle body 1, and the trestle column 13 is arranged on the top of the basement structure column or supported on the ground. Specifically, there are two support methods, one is to use three basement structure columns, and the trestle column 13 is fixed to the top of the basement structure column; the other is to use two steel columns supported on the ground as the trestle column 13 when there is only one concrete column available in the frame structure of the basement.

[0019] The steel trestle structure on the basement roof provided by the utility model rationally utilizes the concrete frame columns on the existing basement floor in combination with the steel trestle system, so that when the top plate steel structure components are hoisted and constructed, the basement roof is protected from damage by construction machinery, avoiding damage to the existing completed structure and avoiding the need for repair and reinforcement of the roof, beams and other structures after the steel structure is hoisted and constructed. At the same time, it solves the problem of insufficient bearing capacity of the top plate and the inability to meet the requirements of steel structure hoisting construction. It ensures the safety of the steel structure hoisting process and makes the entire construction process of the upper steel structure more reliable and efficient. Among them, the crossbeam 11 is supported by the trestle column 13, and the longitudinal beam 12 is welded and fixed to the crossbeam 11.

[0020] A further improvement is that the slope connection structure 2 includes a ramp beam 21 whose extension direction is consistent with the longitudinal beam 12 and is connected to the longitudinal beam 12. The two are welded together, and a trestle column 13 is provided at the connection between the two. A support column 22 is provided at the bottom of the ramp beam 21 to improve the bearing capacity of the ramp beam 21.

[0021] In order to improve the supporting stability of the support column 22, a further improvement of the present technical solution is that an independent foundation for supporting the support column 22 is prepared in advance on the ground below the support column 22. The top of the independent foundation is pre-embedded with embedded parts during prefabrication, and the bottom end of the support column 22 is fixedly connected to the embedded parts by welding.

[0022] A further improvement is that the portion of the steel structure in the basement structural column that extends above the ground is provided with a corbel, and the crossbeam 11 is provided on the corbel.

[0023] As a further improvement, the cross beam 11, the longitudinal beam 12 and the steel structure trestle column 13 are all box-type structures, which can improve the overall structural strength and meet the requirements of crawler crane travel and construction operations thereon.

[0024] A further improvement is that a connecting beam 14 is provided between the longitudinal beams 12 between two adjacent transverse beams 11. The connecting beam 14 improves the structural strength of the weak parts of the steel trestle body 1 and improves its supporting capacity.

[0025] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A steel trestle structure on a basement roof for crawler crane construction, characterized in that: include: A steel trestle body and a slope structure are arranged above the basement roof. The steel trestle body is composed of a plurality of cross beams and two longitudinal beams. Trestle columns are provided at the bottom of the steel trestle body. The trestle columns are arranged on the top of the basement structural columns or supported on the ground.

2. The steel trestle structure on the basement roof according to claim 1, characterized in that: The slope connection structure includes a ramp beam whose extension direction is consistent with the longitudinal beam and is connected to the longitudinal beam, and a support column is provided at the bottom of the ramp beam.

3. The steel trestle structure on the basement roof according to claim 2, characterized in that: An independent foundation is provided at a position corresponding to the support column, an embedded part is provided at the top of the independent foundation, and the support column is fixed on the embedded part.

4. The steel trestle structure on the basement roof according to claim 1, characterized in that: A portion of the steel structure in the basement structural column that extends above the ground is provided with a corbel, and the crossbeam is provided on the corbel.

5. The steel trestle structure on the basement roof according to claim 1, characterized in that: The cross beams, the longitudinal beams and the trestle columns of the steel structure are all box-type structures.

6. The steel trestle structure on the basement roof according to claim 1, characterized in that: A connecting beam is provided between the longitudinal beams between two adjacent transverse beams.

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