Trestle for construction

Abstract

The utility model relates to the field of underground engineering building construction, in particular to a construction trestle which comprises a trestle bearing reinforced concrete frame structure and a bridge deck, the trestle bearing reinforced concrete frame structure comprises trestle columns, trestle longitudinal beams and trestle cross beams, and the bridge deck is formed by combining steel members. And the bridge deck slab is simply supported and fixed on the trestle cross beam. According to the bridge deck assembled by the steel members, the trestle can be quickly mounted and dismounted, the input of non-renewable resources and the generation of construction waste are reduced, the construction efficiency is remarkably improved, the whole life cycle cost is reduced, and the bridge deck has remarkable technical and economic advantages. The bridge deck slab adopts modular design and factory standardized production, and reduces field processing time, so that the construction period is shortened, the bridge deck slab can be reused, and resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of underground engineering construction, and in particular to a construction trestle. Background Technology

[0002] With the large-scale development and utilization of urban underground space, deep foundation pit projects face the dual challenges of difficult soil transportation and a lack of material storage areas around the pit. To address these issues, the common practice is to install a trestle bridge as the first support of the foundation pit. However, traditional foundation pit trestle bridges, mostly constructed of reinforced concrete, have numerous limitations: fixed alignment is difficult to adjust, resulting in low construction efficiency; excavation beneath the trestle bridge is challenging; the structure cannot be immediately put into use after completion; and repairs after damage are lengthy, severely impacting construction progress. Furthermore, the passage of heavy construction machinery on the trestle bridge requires a large amount of materials such as foundation layers, supports, formwork, reinforcing steel, and concrete, resulting in a massive overall volume that only serves the construction phase, requiring manual demolition later and generating substantial solid waste. Utility Model Content

[0003] The purpose of this invention is to provide a construction trestle to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A construction trestle includes a load-bearing reinforced concrete frame structure and a bridge deck. The load-bearing reinforced concrete frame structure includes trestle columns, longitudinal beams, and transverse beams. The bridge deck is formed by assembling steel components and is simply supported and fixed to the transverse beams.

[0006] Preferably, both the longitudinal beams and the transverse beams of the trestle bridge are reinforced concrete structures. The longitudinal beams are parallel to the long side of the bridge deck, and the transverse beams are perpendicular to the long side of the bridge deck. The longitudinal beams and the transverse beams are connected to the trestle columns by bolts.

[0007] Preferably, the bridge deck is formed by welding together steel components, which include an upper anti-slip panel, a lower hot-rolled steel plate, a surrounding sealing plate, and internal lattice ribs. All welds are fully welded with a weld leg ≥ 6mm. The bridge deck adopts a modular design.

[0008] Preferably, the anti-slip panel is provided with crisscrossing anti-slip strips and four hanging holes.

[0009] Preferably, the anti-slip strip has a depth of ≥5mm.

[0010] Preferably, rubber pads should be fully laid between the crossbeams of the trestle bridge and the bottom plate of the bridge deck to reduce noise and prevent the bridge deck from sliding in the lateral direction.

[0011] Preferably, a limiting angle steel is provided at the intersection of the longitudinal beam of the trestle bridge and the edge of the long side of the bridge deck to restrict the lateral displacement of the bridge deck. The limiting angle steel is welded and fixed to the embedded part above the longitudinal beam of the trestle bridge.

[0012] Compared with existing technologies, the beneficial effects are as follows:

[0013] Bridge decks assembled from steel components not only enable rapid installation and dismantling of trestle bridges, reducing the input of non-renewable resources and the generation of construction waste, but also significantly improve construction efficiency and reduce life-cycle costs, demonstrating significant technical and economic advantages. The bridge decks employ a modular design and standardized factory production, reducing on-site processing time and thus shortening the construction cycle. Furthermore, the bridge decks are reusable, conserving resources. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a construction trestle according to the present invention;

[0016] Figure 2 This is a schematic diagram of the bridge deck structure of a construction trestle as described in this utility model;

[0017] Figure 3 This is a cross-sectional view of the bridge deck of a construction trestle as described in this utility model;

[0018] Figure 4 This is a side view of the relationship between the bridge deck and the limiting angle steel of the construction trestle described in this utility model;

[0019] Figure 5 This is a front view of the relationship between the bridge deck and the limiting angle steel of a construction trestle as described in this utility model.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Bridge deck; 2. Longitudinal beams of the trestle bridge; 3. Crossbeams of the trestle bridge; 4. Rubber pads; 5. Trestle bridge columns; 6. Embedded parts; 7. Limiting angle steel; 8. Anti-slip panels; 9. Hot-rolled steel plates; 10. Sealing plates; 11. Lattice ribs; 12. Anti-slip strips; 13. Lifting holes. Detailed Implementation

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] like Figures 1-5 As shown, a construction trestle includes a load-bearing reinforced concrete frame structure and a bridge deck 1. The load-bearing reinforced concrete frame structure includes trestle columns 5, longitudinal beams 2, and transverse beams 3. The bridge deck 1 is formed by assembling steel components and is simply supported and fixed to the transverse beams 3.

[0025] In this embodiment, both the longitudinal beam 2 and the transverse beam 3 of the trestle bridge are reinforced concrete structures. The longitudinal beam 2 is parallel to the long side of the bridge deck 1, and the transverse beam 3 is perpendicular to the long side of the bridge deck 1. The longitudinal beam 2 and the transverse beam 3 are connected to the trestle column 5 by bolts.

[0026] In this embodiment, the bridge deck 1 is formed by welding together steel components. The steel components include an upper anti-slip panel 8, a lower hot-rolled steel plate 9, a surrounding sealing plate 10, and an internal lattice rib 11. All welds are fully welded with a weld leg ≥ 6mm. The bridge deck 1 adopts a modular design.

[0027] In this embodiment, the anti-slip panel 8 is provided with crisscrossing anti-slip strips 12 and four hanging holes 13.

[0028] In this embodiment, the anti-slip strip 12 has a depth of ≥5mm.

[0029] In this embodiment, rubber pads 4 need to be fully laid between the crossbeam 3 of the trestle bridge and the bottom plate of the bridge deck 1 to reduce noise and prevent the bridge deck 1 from sliding in the lateral direction.

[0030] In this embodiment, a limiting angle steel 7 is provided at the intersection of the longitudinal beam 2 of the trestle bridge and the edge of the long side of the bridge deck 1 to limit the lateral displacement of the bridge deck 1. The limiting angle steel 7 is welded and fixed to the embedded part 6 above the longitudinal beam 2 of the trestle bridge.

[0031] In this embodiment, if there is an underground structure being constructed simultaneously, the underground structure is directly used as the load-bearing structure. Compared with traditional trestle bridges, it does not need to be demolished, and all materials can be utilized, which speeds up the construction of the trestle bridge.

[0032] In this embodiment, the bridge deck 1 adopts a modular design and standardized factory production, reducing on-site processing time and thus shortening the construction cycle. The bridge deck can be reused, saving resources.

[0033] Working principle: During installation, first, fix the limiting angle steel 7 according to the required size of the bridge deck 1. Then, fix the longitudinal beam 2 and the transverse beam 3 of the trestle to the trestle column 5 with bolts. Next, lay the rubber pad 4 on the transverse beam 3 of the trestle. Then, lay the bridge deck 1 on the top of the rubber pad 4 and fix the bridge deck 1 with bolts. The installation is then complete.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A construction trestle bridge, characterized in that: The bridge includes a load-bearing reinforced concrete frame structure and a bridge deck (1). The load-bearing reinforced concrete frame structure includes bridge columns (5), bridge longitudinal beams (2), and bridge cross beams (3). The bridge deck (1) is formed by assembling steel components and is simply supported and fixed to the bridge cross beams (3).

2. A construction trestle bridge according to claim 1, characterized in that: The longitudinal beams (2) and the transverse beams (3) of the trestle bridge are both reinforced concrete structures. The longitudinal beams (2) are parallel to the long side of the bridge deck (1), and the transverse beams (3) are perpendicular to the long side of the bridge deck (1). The longitudinal beams (2) and the transverse beams (3) of the trestle bridge are connected to the trestle columns (5) by bolts.

3. A construction trestle bridge according to claim 2, characterized in that: The bridge deck (1) is formed by welding together steel components, which include an upper anti-slip panel (8), a lower hot-rolled steel plate (9), a surrounding sealing plate (10), and an internal lattice rib (11). All welds are fully welded with a weld leg ≥ 6 mm. The bridge deck (1) adopts a modular design.

4. A construction trestle bridge according to claim 3, characterized in that: The anti-slip panel (8) is provided with crisscrossing anti-slip strips (12) and four hanging holes (13).

5. A construction trestle bridge according to claim 4, characterized in that: The anti-slip strip (12) has a depth of ≥5mm.

6. A construction trestle bridge according to claim 5, characterized in that: Rubber pads (4) need to be fully laid between the crossbeam (3) of the trestle and the bottom plate of the bridge deck (1) to reduce noise and prevent the bridge deck (1) from sliding in the lateral direction.

7. A construction trestle bridge according to claim 6, characterized in that: A limiting angle steel (7) is provided at the intersection of the longitudinal beam (2) of the trestle bridge and the edge of the long side of the bridge deck (1). The limiting angle steel (7) is welded and fixed to the embedded part (6) above the longitudinal beam (2) of the trestle bridge.

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