Novel integral Bailey steel bridge deck slab capable of being simply connected

Abstract

The utility model belongs to the technical field of Bailey steel bridge construction, and relates to a novel integral Bailey steel bridge deck slab capable of being simply connected, which comprises a Bailey beam and a steel bridge deck slab, and is characterized in that the Bailey beam comprises a Bailey beam body, cross beams and a deck slab connecting piece, the cross beams are symmetrically arranged on the two sides of the upper end and the lower end of the Bailey beam body, and the deck slab connecting piece is connected with the Bailey beam body. Panel connecting pieces are fixedly arranged at the two ends of the bailey beam body between every two transverse opposite cross beams, and panel connecting holes are formed in the panel connecting pieces; the steel bridge deck is a plate body with bolt bars vertically arranged at the four corners, and the steel bridge deck is connected with the bailey beams through cooperation of the bolt bars, the deck connecting holes and nuts. Only fastening of the bolts and the nuts is involved in the mounting and dismounting process, welding and other processes are not needed, the working procedure is simple, the construction progress is accelerated, and construction loss and investment of a large number of personnel are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of Bailey bridge construction technology and relates to a new type of integral Bailey bridge deck that can be easily connected. Background Technology

[0002] Bailey bridge decks are widely used in bridge construction due to their advantages such as reusability and convenient transportation. A typical Bailey bridge deck consists of Bailey beams and steel deck panels installed on top of them. Currently, the welding installation method used for assembling these two components is not only cumbersome and time-consuming, but also potentially damages the deck panels during later dismantling. As a result, the quality of the deck panels gradually decreases with repeated use, leading to poor appearance and reduced service life.

[0003] The Qingxi Operation Area Project of Fuling Port Area, Chongqing Port, is a water transport project, with most of the construction work carried out on the water. On-site, steel trestle bridges and steel platforms need to be erected as construction platforms. The required platform area is large, and the platforms need to be reused, placing strict demands on the construction period. Traditional Bailey bridge decks are labor-intensive, time-consuming, and lack sufficient quality for dismantling and reuse, failing to meet the project requirements. Therefore, based on the characteristics of this project, the Bailey bridge deck system needs to be optimized to facilitate installation and dismantling while ensuring sufficient strength. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of integral Bailey bridge deck that has a scientific and reasonable structural design, is easy to disassemble, has a long service life, high strength, and is easy to implement and can be easily connected.

[0005] The technical problem solved by this utility model is achieved through the following technical solution:

[0006] A novel integral Bailey bridge deck that can be easily connected includes a Bailey beam and a steel bridge deck. The Bailey beam includes a Bailey beam body, crossbeams and deck connecting pieces. Crossbeams are symmetrically arranged on both sides of the upper and lower ends of the Bailey beam body. Deck connecting pieces are fixed at both ends of the Bailey beam body between two opposite crossbeams. Deck connecting holes are provided on the deck connecting pieces.

[0007] The steel bridge deck is a plate with bolts vertically installed at its four corners. The steel bridge deck is connected to the Bailey beam through the cooperation of the bolts, panel connection holes and nuts.

[0008] Furthermore, the steel bridge deck includes a panel groove, reinforcing ribs, and bolt rod anti-deviation plates. The panel groove is provided with reinforcing ribs arranged in a cross pattern, and bolt rod anti-deviation plates are provided at the four corners of the bottom of the panel groove. Anti-deviation openings are provided on the bolt rod anti-deviation plates, and the bolt rods are welded to the bottom of the panel groove and then pass through the anti-deviation openings.

[0009] Furthermore, the upper end face of the steel bridge deck is provided with reinforcing connection holes evenly distributed along its length on both sides. Reinforcing connection pieces are slidably arranged between the two panel connecting pieces of the Bailey beam. Each reinforcing connection piece is slidably installed in a groove provided on the inner side of the crossbeam. Reinforcing connection holes are provided on the reinforcing connection pieces. The upper and lower reinforcing connection holes achieve the reinforcing connection between the Bailey beam and the steel bridge deck through the cooperation of bolts and nuts.

[0010] The advantages and beneficial effects of this utility model are as follows:

[0011] This new type of integrated Bailey bridge deck, which allows for easy connection, solves the problems of inconvenient on-site splicing and installation, inconsistent appearance, and poor integration of traditional steel bridge decks. By pre-welding the steel bridge deck to standard dimensions in the factory, subsequent overall processes are simplified, improving construction efficiency. Furthermore, this steel bridge deck is highly adaptable to the underlying Bailey beams, facilitating reuse. Installation and dismantling involve only the tightening of bolts and nuts, eliminating the need for welding and other processes. This simplifies the process, accelerates construction progress, and reduces construction waste and the need for significant manpower. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the Bailey beam structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the steel bridge deck of this utility model;

[0015] Figure 4 This is a bottom view of the steel bridge deck of this utility model (bolt rods omitted).

[0016] Figure Labels

[0017] 1-Steel bridge deck, 2-Bailey beam, 3-Crossbeam, 4-Reinforcing connecting piece, 5-Bailey beam body, 6-Deck connecting piece, 7-Anti-deviation piece for bolt rod, 8-Deck groove, 9-Reinforcing rib, 10-Reinforcing connecting hole, 11-Bolt rod. Detailed Implementation

[0018] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.

[0019] A novel integrated Bailey bridge deck that can be easily connected includes a Bailey beam 2 and a steel bridge deck 1. Its innovation lies in the following: the Bailey beam includes a Bailey beam body 5, a crossbeam 3 and a deck connecting piece 6. The Bailey beam body is a 321 type Bailey sheet. Symmetrical crossbeams are provided at both the upper and lower ends of the Bailey beam body. Deck connecting pieces are fixedly installed at both ends of the Bailey beam body between the two symmetrical crossbeams. Deck connecting holes are provided on the deck connecting pieces.

[0020] The steel bridge deck is a plate with bolt rods 11 welded at its four bottom corners. The steel bridge deck is connected to the Bailey beam through the cooperation of the bolt rods, nuts and the panel connection holes.

[0021] The bolts at the bottom of the steel bridge deck serve two purposes: first, they connect the sections, and second, they guide the steel bridge deck as it falls, reducing the need for fine-tuning after the material is dropped.

[0022] To increase the strength of the steel bridge deck, in this embodiment, the steel bridge deck is made of 8mm thick steel plate, including a panel groove 8, reinforcing ribs 9, and bolt rod anti-deviation plates 7. The parts are connected by welding. The panel groove is provided with reinforcing ribs arranged in a cross pattern. Bolt rod anti-deviation plates are provided at the four corners of the bottom of the panel groove. Anti-deviation openings are provided on the bolt rod anti-deviation plates. After the bolt rod is welded to the bottom of the panel groove, it passes through the anti-deviation opening. Since the bolt rod is relatively long at the bottom of the steel bridge deck, in order to prevent its deformation and affect the smooth insertion of the bolt into the panel connection hole, anti-deviation openings are provided at the bottom of the steel bridge deck to prevent the bolt rod from deforming.

[0023] Since bridges are usually set high, in order to further ensure the reliability of their connection, reinforcing connection holes 10 are provided on both sides of the upper end face of the steel bridge deck, evenly distributed along its length. A reinforcing connection piece 4 is provided between the two panel connecting pieces of the Bailey beam, and a reinforcing connection hole is provided on the reinforcing connection piece. The upper and lower reinforcing connection holes are used to realize the reinforcing connection between the Bailey beam and the steel bridge deck through bolts.

[0024] To facilitate the connection between the steel bridge deck and the Bailey bridge beam, in this embodiment, a sliding groove is provided on the inner side of the two crossbeams, and the reinforcing connecting piece is slidably installed in the sliding groove to facilitate alignment with the reinforcing connecting hole on the steel bridge deck.

[0025] Construction process flow

[0026] 1. Bailey beam installation

[0027] After the substructure of the steel bridge is completed, the Bailey bridge beams are hoisted and placed on the main beams fixed by concrete. Measurement and positioning are performed to ensure that the installation spacing and position of the Bailey bridge beams are accurate, which will facilitate the alignment of bolts with the holes later.

[0028] 2. Steel bridge deck hoisting

[0029] The integral steel bridge deck adopts a standard 6m×1.5m (length×width) shape, which is hoisted and placed on the Bailey beam. During the descent of the steel bridge deck, manual assistance is provided to correct its deviation. After the bolts are inserted into the panel connection holes on the Bailey beam, the steel bridge deck can be lowered at a normal speed.

[0030] 3. Nut installation

[0031] Install nuts on the bolts to secure the steel bridge deck to the Bailey beams.

[0032] 4. Install edge protection

[0033] Bridges are mostly located at high altitudes. After the steel bridge deck is installed, its edges need to be protected. The edges are also connected to the steel bridge deck through bolts and pre-drilled reinforcing connection holes.

[0034] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A novel integral Bailey bridge deck that can be easily connected, comprising Bailey beams and a steel bridge deck, characterized in that: The Bailey beam includes a Bailey beam body, crossbeams and panel connecting pieces. Crossbeams are symmetrically arranged on both sides of the upper and lower ends of the Bailey beam body. Panel connecting pieces are fixed at both ends of the Bailey beam body between each pair of horizontally opposite crossbeams. Panel connecting holes are provided on the panel connecting pieces. The steel bridge deck is a plate with bolts vertically installed at its four corners. The steel bridge deck is connected to the Bailey beam through the cooperation of the bolts, panel connection holes and nuts.

2. The novel integral Bailey bridge deck with easy connection according to claim 1, characterized in that: The steel bridge deck includes a panel groove, reinforcing ribs, and bolt rod anti-deviation plates. The panel groove is provided with reinforcing ribs arranged in a cross pattern. Bolt rod anti-deviation plates are provided at the four corners of the bottom of the panel groove. Anti-deviation openings are provided on the bolt rod anti-deviation plates. The bolt rods are welded to the bottom of the panel groove and then pass through the anti-deviation openings.

3. The novel integral Bailey bridge deck with easy connection according to claim 1, characterized in that: The upper end face of the steel bridge deck is provided with reinforcing connection holes evenly distributed along its length. Reinforcing connection plates are slidably arranged between the two panel connecting plates of the Bailey beam. Each reinforcing connection plate is slidably installed in a groove provided on the inner side of the crossbeam. Reinforcing connection holes are provided on the reinforcing connection plates. The upper and lower reinforcing connection holes realize the reinforcing connection between the Bailey beam and the steel bridge deck through the cooperation of bolts and nuts.

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