Simple bridge construction structure across asphalt core wall

Abstract

The application discloses a simple bridge construction structure crossing asphalt core walls, which comprises the asphalt core walls and simple bridge bodies installed on the top of the asphalt core walls. When construction operation vehicles run on the bridge horizontal plates and the bridge slope plates, the bridge horizontal plates and the bridge slope plates are supported by the inclined pads and the middle supporting legs, and the welding seams at the joint of the bridge horizontal plates and the bridge slope plates are not easy to crack, thus solving the problem that only the two ends of the bottom plates are supported, the joint between the bridge horizontal plates and the bridge slope plates is not stably supported, and the joint is easy to crack due to insufficient stress.

Description

Technical Field

[0001] This utility model relates to a construction structure for a simple bridge spanning an asphalt core wall, belonging to the field of hydraulic dam construction technology. Background Technology

[0002] When asphalt concrete is used to fill the transition material to form the central seepage prevention structure of an earth-rock dam, the load-bearing capacity of the core wall of the asphalt concrete filling is relatively poor. Therefore, it is necessary to build a simple bridge on the area of ​​the asphalt concrete core wall to allow construction vehicles to travel.

[0003] The existing technology, as disclosed in Chinese Patent Publication No. CN210122681U, can support both ends of the base plate through the base, compression spring, and telescopic rod. However, when construction vehicles pass over the bridge deck, the connection between the horizontal plate and the sloping plate of the bridge deck is unstable and prone to insufficient stress and cracking. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a simple bridge construction structure for crossing an asphalt core wall.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a simple bridge construction structure spanning an asphalt core wall, comprising:

[0007] Crossing the asphalt heart wall;

[0008] A simple bridge structure is installed on top of the asphalt core wall.

[0009] The area spanning the two outer sides of the asphalt core wall has a transition material zone.

[0010] There are dam shell material areas on both sides of the transition material area;

[0011] The simple bridge body is supported at both ends on the transition material area by end support feet.

[0012] The simple bridge structure includes a base plate at the bottom;

[0013] The base plate is integrally formed and fixed with bridge deck ramps. The bridge deck ramps at both ends of the base plate are relatively inwardly recessed on the top surface of the base plate with a slope of %.

[0014] The bottom plate has a horizontal bridge deck plate on the top surface in the middle, and the two ends of the horizontal bridge deck plate are welded and fixedly connected to the bridge deck slope plate.

[0015] The bottom plates at both ends of the horizontal bridge deck are each equipped with intermediate support feet. The intermediate support feet penetrate the bottom plates and support the transition material area. The tops of the two intermediate support feet contact both ends of the horizontal bridge deck.

[0016] The intermediate support leg is fitted with an inclined pad via a screw and nut.

[0017] The inclined pad is located between the bridge deck slope plate and the bridge deck horizontal plate. The screw rod passes through the middle support foot and connects to the inclined pad. The screw rod is clamped to the middle support foot by two nuts.

[0018] The intermediate support leg and the end support leg are composed of I-beams.

[0019] Multiple spaced threaded steel bodies are fixed to the top of both the bridge deck ramp and the bridge deck horizontal plate.

[0020] The beneficial effects of this utility model are as follows: when construction vehicles travel on the horizontal slab and the sloping slab of the bridge deck, the horizontal slab and the sloping slab of the bridge deck are supported by the inclined pad and the middle support foot. The weld seam at the connection between the horizontal slab and the sloping slab of the bridge deck is not easy to crack. This solves the problem that only supporting the two ends of the bottom plate leads to unstable support at the connection between the horizontal slab and the sloping slab of the bridge deck, which is prone to insufficient force and cracking. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is the front view of the simplified bridge structure of this utility model;

[0023] Figure 3 This is a top view of the simplified bridge structure of this utility model;

[0024] In the diagram: 1-Crossing the asphalt core wall; 2-Transition material area; 3-Dam shell material area; 4-Simple bridge body; 41-Bottom slab; 42-Bridge deck ramp slab; 43-Bridge deck horizontal slab; 44-Intermediate support foot; 51-Screw rod; 52-Nut; 53-Inclined washer; 6-Threaded steel body. Detailed Implementation

[0025] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0026] This application discloses a construction structure for a simple bridge spanning an asphalt core wall, comprising:

[0027] A cross-asphalt core wall 1, constructed of asphalt concrete material, is formed between transition material areas 2, and dam shell material areas 3 are constructed on both sides of the transition material areas 2.

[0028] A simple bridge body 4 is installed on the top of the asphalt core wall 1. The two ends of the simple bridge body 4 are supported on the transition material area 2 by end support feet 5 made of I-beams.

[0029] The simple bridge body 4 includes a bottom plate 41 at the bottom;

[0030] The base plate 41 is integrally bent to form a bridge deck ramp 42. The bridge deck ramps 42 located at both ends of the base plate 41 are relatively inwardly recessed on the top surface of the base plate 41 with a slope of 18%.

[0031] The top surface of the middle part of the base plate 41 has a bridge deck horizontal plate 43, and the two ends of the bridge deck horizontal plate 43 are welded and fixedly connected to the bridge deck slope plate 42.

[0032] The bottom plates 41 located at both ends of the bridge deck horizontal plate 43 are each equipped with intermediate support feet 44. The intermediate support feet 44 penetrate the bottom plates 41 and support the transition material area 2. The tops of the two intermediate support feet 44 contact both ends of the bridge deck horizontal plate 43.

[0033] The intermediate support foot 44 is equipped with an inclined pad 53 by means of a screw 51 and a nut 52. The inclined pad 53 is located between the bridge deck slope plate 42 and the bridge deck horizontal plate 43. The screw 51 passes through the intermediate support foot 44 and connects to the inclined pad 53. The screw 51 is screwed and clamped onto the intermediate support foot 44 by two nuts 52.

[0034] When construction vehicles travel on the horizontal slab 43 and the sloping slab 42 of the bridge deck, the horizontal slab 43 and the sloping slab 42 of the bridge deck are supported by the inclined pad 53 and the intermediate support foot 44. The weld seam at the joint between the horizontal slab 43 and the sloping slab 42 of the bridge deck is not easy to crack. This solves the problem that only supporting the two ends of the bottom plate leads to unstable support at the joint between the horizontal slab and the sloping slab of the bridge deck, which is prone to insufficient force and cracking.

[0035] The intermediate support leg 44 is composed of an I-beam.

[0036] Both the top of the bridge deck ramp plate 42 and the bridge deck horizontal plate 43 are welded and fixed with threaded steel bodies 6, which are distributed in multiple intervals to provide friction resistance.

Claims

1. A construction structure for a simple bridge spanning an asphalt core wall, characterized in that, include: Crossing the asphalt core wall (1); A simple bridge structure (4) is installed on top of the asphalt core wall (1); The two outer sides of the cross-asphalt core wall (1) have transition material areas (2); The transition material area (2) has dam shell material areas (3) on both sides; The simple bridge body (4) is supported at both ends on the transition material area (2) by end support feet (5); The simple bridge body (4) includes a bottom plate (41) at the bottom; The base plate (41) is integrally formed and fixed with the bridge deck ramp plate (42). The bridge deck ramp plates (42) at both ends of the base plate (41) are relatively recessed inward at an 18% slope on the top surface of the base plate (41). The bottom plate (41) has a bridge deck horizontal plate (43) on the top surface of the middle part, and the two ends of the bridge deck horizontal plate (43) are welded and fixedly connected to the bridge deck slope plate (42); The bottom plates (41) at both ends of the bridge deck horizontal plate (43) are each equipped with intermediate support feet (44). The intermediate support feet (44) penetrate the bottom plates (41) and are supported on the transition material area (2). The tops of the two intermediate support feet (44) contact the two ends of the bridge deck horizontal plate (43). The intermediate support foot (44) is equipped with an inclined pad (53) via a screw (51) and a nut (52).

2. The construction structure for a simple bridge spanning an asphalt core wall as described in claim 1, characterized in that: The inclined pad (53) is located between the bridge deck slope plate (42) and the bridge deck horizontal plate (43). The screw (51) passes through the middle support foot (44) and connects to the inclined pad (53). The screw (51) is screwed and clamped on the middle support foot (44) by two nuts (52).

3. The construction structure for a simple bridge spanning an asphalt core wall as described in claim 2, characterized in that: The intermediate support leg (44) and the end support leg (5) are composed of I-beams.

4. The construction structure for a simple bridge spanning an asphalt core wall as described in claim 1, characterized in that: Multiple spaced threaded steel bodies (6) are fixed to the top of both the bridge deck ramp plate (42) and the bridge deck horizontal plate (43).

Images