A bridge steel structure with expansion joints

Abstract

The utility model provides a bridge steel structure with expansion joints, which relates to the technical field of bridges, including an expansion joint mechanism, the top of which is fixedly connected with a bridge main body mechanism, the expansion joint mechanism including a bridge plate, two bridge expansion joints are provided on the top of the bridge plate, the inner surface walls of the two bridge expansion joints are fixedly connected with caulking strips, and the tops of the two bridge expansion joints are fixedly connected with two groups of first reserved steel bars. In the utility model, under the action of the expansion joint mechanism, a bridge expansion joint is provided on the top of the bridge plate, and each group of expansion joint structures is welded to the reserved steel bars on the inner surface wall of the bridge expansion joint by using reserved steel bars, and a rubber sealing strip is added between each group of expansion joint structures, and a caulking strip is also filled between the inner surface walls of the expansion joint, thereby further strengthening the sealing of the expansion joint, enhancing the environmental adaptability of the expansion joint, and improving the service life of the expansion joint structure.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to a bridge steel structure with expansion joints. Background Art

[0002] The steel structure of a bridge is mainly composed of the bridge body, roadbed and support rods. The bridge body is the main structure that bears the weight of vehicles and pedestrians. In order to cope with the deformation that may occur during the use of the bridge, designers will set expansion joints in the steel structure of the bridge.

[0003] In the prior art, the main function of expansion joints of bridges with expansion joints is to reduce stress concentration caused by deformation of the bridge, thereby reducing fatigue damage to the bridge. However, the existing expansion joint structure has poor sealing performance, which causes liquid to penetrate into the expansion joint and damage its internal structure. Utility Model Content

[0004] The utility model aims to solve the problem that when the existing equipment is in use, due to the poor sealing of the existing bridge steel structure with expansion joints, liquid penetrates into the expansion joints and causes damage to its internal structure, and proposes a bridge steel structure with expansion joints.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a bridge steel structure with an expansion joint, comprising an expansion joint mechanism, the top of which is fixedly connected to a bridge main body mechanism;

[0006] The expansion joint mechanism includes a bridge plate, and two bridge expansion joints are opened on the top of the bridge plate. The inner walls of the two bridge expansion joints are fixedly connected with caulking strips, and the tops of the two bridge expansion joints are fixedly connected with two groups of first reserved steel bars, and two second reserved steel bars are welded between the inner walls of four groups of the first reserved steel bars, and anchor steel bars are welded on the tops of the four groups of the first reserved steel bars, and an anchor plate is welded between the tops of the four groups of the anchor steel bars.

[0007] Preferably, the outer surfaces of the four anchor plates are fixedly connected to side beams, and two rubber sealing strips are fixedly inserted between the inner surfaces of the four side beams.

[0008] Preferably, a concrete filler is fixedly connected between the outer walls of the four groups of the first reserved steel bars.

[0009] Preferably, the main bridge structure includes two brackets, two transverse columns are fixedly connected to one side of the outer wall of the two brackets, and longitudinal columns are fixedly connected between the outer walls of the four transverse columns.

[0010] Preferably, the bottoms of the four transverse columns are fixedly connected with V-shaped reinforcement columns, and two guardrail cross bars are fixedly connected between the outer walls of the four V-shaped reinforcement columns.

[0011] Preferably, a plurality of guardrail posts are fixedly connected to the bottom of the two guardrail cross bars.

[0012] Preferably, the top of the bridge plate is fixedly connected to the bottoms of the two brackets, and the top of the bridge plate is fixedly connected to the bottoms of the four V-shaped reinforcement columns.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, under the action of the expansion joint mechanism, a bridge expansion joint is opened on the top of the bridge plate, and each group of expansion joint structures is welded to the reserved steel bars on the inner surface wall of the bridge expansion joint by using reserved steel bars, and rubber sealing strips are added between each group of expansion joint structures. At the same time, caulking strips are filled between the inner surface walls of the expansion joints, which further strengthens the sealing of the expansion joints, enhances the environmental adaptability of the expansion joints, and improves the service life of the expansion joint structures.

[0015] 2. In the utility model, under the action of the main structure of the bridge, the horizontal columns and the longitudinal columns are connected by brackets to form a supporting structure that can support the entire bridge, and by arranging V-shaped reinforcement columns, the stability and supporting strength of the overall structure are further enhanced. Moreover, under the action of the guardrail crossbars and guardrail columns, good protection can be provided for pedestrians or vehicles traveling on the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A front view of a bridge steel structure with expansion joints is proposed for the utility model;

[0017] Figure 2 A three-dimensional diagram of an expansion joint mechanism of a bridge steel structure with an expansion joint is proposed for the utility model;

[0018] Figure 3 The utility model proposes a side structural split diagram of an expansion joint mechanism of a bridge steel structure with an expansion joint;

[0019] Figure 4 The utility model provides a three-dimensional structural diagram of a bridge main body mechanism of a bridge steel structure with an expansion joint.

[0020] Legend:

[0021] 1. Expansion joint mechanism; 101. Bridge plate; 102. Bridge expansion joint; 103. Sealing strip; 104. First reserved steel bar; 105. Second reserved steel bar; 106. Anchor steel bar; 107. Anchor plate; 108. Side beam; 109. Rubber sealing strip; 110. Concrete filling material;

[0022] 2. Main structure of the bridge; 201. Bracket; 202. Horizontal column; 203. Longitudinal column; 204. V-shaped reinforcement column; 205. Guardrail crossbar; 206. Guardrail column. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0025] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a bridge steel structure with an expansion joint, including an expansion joint mechanism 1, the top of which is fixedly connected to a bridge main body mechanism 2;

[0026] The expansion joint mechanism 1 includes a bridge plate 101, and two bridge expansion joints 102 are opened on the top of the bridge plate 101. The inner walls of the two bridge expansion joints 102 are fixedly connected with caulking strips 103, and the tops of the two bridge expansion joints 102 are fixedly connected with two groups of first reserved steel bars 104. Two second reserved steel bars 105 are welded between the inner walls of four groups of first reserved steel bars 104, and anchor steel bars 106 are welded on the tops of the four groups of first reserved steel bars 104. An anchor plate 107 is welded between the tops of the four groups of anchor steel bars 106, and the outer walls of the four anchor plates 107 are fixedly connected with side beams 108. Two rubber sealing strips 109 are fixedly inserted between the inner walls of the four side beams 108, and a concrete filler 110 is fixedly connected between the outer walls of the four groups of first reserved steel bars 104.

[0027] The effect achieved by the entire embodiment 1 is that, under the action of the expansion joint mechanism 1, two bridge expansion joints 102 are opened on the top of the bridge plate 101, so that the bridge plate 101 can adapt to deformation under various conditions, including temperature changes, load effects, earthquakes, etc. At the same time, the caulking strips 103 are fixedly connected to the inner surface walls of the two bridge expansion joints 102 to enhance the sealing and waterproofing effect of the bridge expansion joints 102, and two groups of first reserved steel bars 104 are fixedly connected to the tops of the two bridge expansion joints 102, and two second reserved steel bars 105 are welded between the inner surface walls of the four groups of first reserved steel bars 104. Anchor steel bars 106 are welded to the tops of the four groups of first reserved steel bars 104, and the four anchor plates 107 are fixed to the bridge plate 101 through the four groups of anchor steel bars 106. The outer walls of the four anchor plates 107 are fixedly connected with side beams 108, and two rubber sealing strips 109 are fixedly inserted between the inner walls of the four side beams 108 to prevent the liquid on the surface from penetrating into the interior of the bridge expansion joint 102 under the barrier of the rubber sealing strips 109. In this way, the sealing of the bridge expansion joint 102 is strengthened, the environmental adaptability of the expansion joint is enhanced, and the service life of the expansion joint structure is improved.

[0028] Embodiment 2, as Figure 2-Figure 4 As shown, the main bridge structure 2 includes two brackets 201, two transverse columns 202 are fixedly connected to one side of the outer wall of the two brackets 201, longitudinal columns 203 are fixedly connected between the outer walls of the four transverse columns 202, V-shaped reinforcement columns 204 are fixedly connected to the bottoms of the four transverse columns 202, two guardrail cross bars 205 are fixedly connected between the outer walls of the four V-shaped reinforcement columns 204, and a plurality of guardrail columns 206 are fixedly connected to the bottoms of the two guardrail cross bars 205, the top of the bridge plate 101 is fixedly connected to the bottoms of the two brackets 201, and the top of the bridge plate 101 is fixedly connected to the bottoms of the four V-shaped reinforcement columns 204.

[0029] The effect achieved by the entire embodiment 2 is that, under the action of the bridge main body structure 2, four transverse columns 202 are fixedly connected on one side of the outer wall of the two brackets 201, and a longitudinal column 203 is fixedly connected between the outer walls of the four transverse columns 202, and at the same time, V-shaped reinforcement columns 204 are fixedly connected to the bottom of the four transverse columns 202, thereby enhancing the stability and supporting strength of the overall structure, and under the action of the guardrail crossbar 205 and the guardrail column 206, it can provide good protection for pedestrians or vehicles traveling on the bridge.

[0030] Working principle: When in use, two bridge expansion joints 102 are opened on the top of the bridge plate 101, so that the bridge plate 101 can adapt to deformation under various conditions, including temperature changes, load effects, earthquakes, etc. At the same time, the caulking strips 103 are fixedly connected through the inner surface walls of the two bridge expansion joints 102 to enhance the sealing and waterproofing effect of the bridge expansion joints 102, and two groups of first reserved steel bars 104 are fixedly connected to the tops of the two bridge expansion joints 102, two second reserved steel bars 105 are welded between the inner surface walls of the four groups of first reserved steel bars 104, anchor steel bars 106 are welded on the tops of the four groups of first reserved steel bars 104, four anchor plates 107 are fixed to the bridge plate 101 through the four groups of anchor steel bars 106, and the outer surfaces of the four anchor plates 107 are fixedly connected with side beams 10 8. By fixing and inserting two rubber sealing strips 109 between the inner surface walls of the four side beams 108, the liquid on the surface will not penetrate into the interior of the bridge expansion joint 102 under the barrier of the rubber sealing strips 109. In this way, the sealing of the bridge expansion joint 102 is strengthened, the environmental adaptability of the expansion joint is enhanced, and the service life of the expansion joint structure is improved. In addition, four transverse columns 202 are fixedly connected to one side of the outer wall of the two brackets 201, and a longitudinal column 203 is fixedly connected between the outer surface walls of the four transverse columns 202. At the same time, V-shaped reinforcement columns 204 are fixedly connected to the bottom of the four transverse columns 202, which enhances the stability and support strength of the overall structure. Under the action of the guardrail crossbar 205 and the guardrail column 206, it can provide good protection for pedestrians or vehicles traveling on the bridge.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A bridge steel structure with an expansion joint, comprising an expansion joint mechanism (1), characterized in that: The top of the expansion joint mechanism (1) is fixedly connected to a bridge main body mechanism (2); The expansion joint mechanism (1) comprises a bridge plate (101), wherein two bridge expansion joints (102) are formed on the top of the bridge plate (101), the inner surface walls of the two bridge expansion joints (102) are fixedly connected with a caulking strip (103), the tops of the two bridge expansion joints (102) are fixedly connected with two groups of first reserved steel bars (104), two second reserved steel bars (105) are welded between the inner surface walls of four groups of the first reserved steel bars (104), anchor steel bars (106) are welded to the tops of the four groups of the first reserved steel bars (104), and an anchor plate (107) is welded between the tops of the four groups of the anchor steel bars (106).

2. A bridge steel structure with expansion joints according to claim 1, characterized in that: The outer surfaces of the four anchor plates (107) are all fixedly connected to side beams (108), and two rubber sealing strips (109) are fixedly inserted between the inner surfaces of the four side beams (108).

3. A bridge steel structure with expansion joints according to claim 2, characterized in that: A concrete filling material (110) is fixedly connected between the outer walls of the four groups of the first reserved steel bars (104).

4. A bridge steel structure with expansion joints according to claim 3, characterized in that: The bridge main body structure (2) comprises two brackets (201), two transverse columns (202) are fixedly connected to one side of the outer wall of each of the two brackets (201), and longitudinal columns (203) are fixedly connected between the outer walls of the four transverse columns (202).

5. The bridge steel structure with expansion joints according to claim 4, characterized in that: The bottoms of the four transverse columns (202) are all fixedly connected to a V-shaped reinforcement column (204), and two guardrail cross bars (205) are fixedly connected between the outer walls of the four V-shaped reinforcement columns (204).

6. The bridge steel structure with expansion joints according to claim 5, characterized in that: A plurality of guardrail posts (206) are fixedly connected to the bottoms of the two guardrail crossbars (205).

7. The bridge steel structure with expansion joints according to claim 6, characterized in that: The top of the bridge plate (101) is fixedly connected to the bottoms of the two brackets (201), and the top of the bridge plate (101) is fixedly connected to the bottoms of the four V-shaped reinforcement columns (204).

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