Fabricated anti-cracking bridge structure

Abstract

The utility model belongs to the field of bridge engineering, and particularly relates to an assembly type anti-cracking bridge structure which comprises concrete bases poured on the two sides of a bridge, telescopic cavities are formed in the concrete bases, a plurality of springs are fixedly connected between sliding plates and the left and right end walls of the telescopic cavities at equal intervals in the front-back direction, and a plurality of bridge deck prefabricated slabs can be placed on the concrete bases. Each bridge floor prefabricated slab is provided with a groove, a square groove hole is formed in each groove, a fixing plate is fixedly connected into each square groove hole, and a clamping plate is located between the two sliding plates, so that the expansion and contraction force of the bridge floor prefabricated slabs can be buffered through stretching of springs, and cracks of the bridge floor prefabricated slabs are avoided; the concrete base is provided with two second square holes which are symmetrical in the front-back direction, each bridge floor prefabricated plate is provided with a first square hole which is aligned with the corresponding second square hole in the front-back direction, the steel bars penetrating through the first square holes are clamped in the second square holes, and the steel bars can prevent the bridge floor prefabricated plates from moving up and down, so that the bridge floor prefabricated plates are prevented from tilting, and safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of bridges, in particular to an assembled anti-cracking bridge structure. Background Art

[0002] Many small bridges fail to consider the effects of thermal expansion and contraction of the bridge deck during construction, which makes the bridge deck prone to cracks. In the long run, this will affect the safety of the bridge. Therefore, an assembled anti-crack bridge structure is needed to replace the existing small bridge construction method. Utility Model Content

[0003] The purpose of the utility model is to provide an assembled anti-cracking bridge structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembled anti-cracking bridge structure, comprising a concrete base cast on both sides of the bridge, a telescopic cavity is provided in the concrete base, two sliding plates symmetrically connected to the telescopic cavity are slidably connected in the telescopic cavity, a plurality of springs equidistant from front to back are fixedly connected between the sliding plate and the left and right end walls of the telescopic cavity, a plurality of precast bridge deck panels can be placed on the concrete base, each of the precast bridge deck panels is provided with a groove, a square slot hole is provided in the groove, a fixing plate is fixedly connected in the square slot hole, a clamping plate passing through the precast bridge deck panel is fixedly connected to the lower end surface of the fixing plate, the clamping plate is located between the two sliding plates, so that the force of thermal expansion and contraction of the precast bridge deck panel can be buffered by the expansion and contraction of the spring, thereby avoiding cracks in the precast bridge deck panel;

[0005] The concrete base is provided with two second square holes which are symmetrical in front and back, and each of the precast bridge deck panels is provided with a first square hole which is aligned in front and back with the second square hole, and a steel bar passing through each of the first square holes is clamped in the second square holes, and the steel bar can prevent the precast bridge deck panels from moving up and down, thereby preventing the precast bridge deck panels from warping and ensuring safety.

[0006] Advantageously, the concrete base is provided with two front-to-back symmetrical closed grooves, each of which is front-to-back aligned with the second square hole, and a closed plate is fixedly connected in each of the closed grooves, so that the front-to-back displacement of the steel bar is limited by the closed grooves;

[0007] Advantageously, the concrete base is provided with a plurality of mounting grooves, and the mounting grooves are distributed around the upper end surface of the concrete base;

[0008] Advantageously, a speed bump is provided on the upper side of the concrete base, and the speed bump is provided with a plurality of circular slot holes aligned with the mounting slots in the vertical direction;

[0009] Advantageously, each of the mounting grooves is fixedly connected with an expansion screw passing through each of the circular slot holes, thereby fixing the speed bump to the upper end surface of the concrete base without affecting the displacement of the precast bridge deck slab, preventing debris and other debris from entering the telescopic cavity while reminding the car to slow down.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model provides springs, precast bridge deck plates and clamping plates, so that a plurality of precast bridge deck plates can be installed on concrete bases cast on both sides of the bridge, and after the clamping plates are inserted into square slots, they are clamped between two sliding plates, and the clamping plates are supported by high-hardness springs, and steel bars are used to prevent the precast bridge deck plates from moving up and down, so that the springs can be used to buffer when the precast bridge deck plates expand and contract due to heat, thereby preventing the precast bridge deck plates from cracking, and the speed bumps are fixed on the upper side of the concrete base, so that debris and other debris can be prevented from entering the expansion cavity while the vehicle is decelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0013] Figure 2 for Figure 1 A top view of

[0014] Figure 3 for Figure 2 AA cross-sectional diagram of ;

[0015] Figure 4 It is a three-dimensional schematic diagram of the disassembly of the speed bump of the utility model;

[0016] Figure 5 It is a three-dimensional schematic cross-sectional view of the concrete base of the utility model;

[0017] Figure 6 It is a three-dimensional schematic diagram of the steel bar of the utility model.

[0018] In the figure: 100, concrete base; 101, speed bump; 102, circular slot hole; 103, expansion screw; 104, closing plate; 105, precast bridge deck plate; 106, telescopic cavity; 107, sliding plate; 108, spring; 109, groove; 110, first square hole; 111, steel bar; 112, fixing plate; 113, clamping plate; 114, closing slot; 115, second square hole; 116, installation slot; 117, square slot hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1:

[0021] See also Figure 1-6 The utility model provides a technical solution: an assembled anti-cracking bridge structure, comprising a concrete base 100 cast on both sides of the bridge, a telescopic cavity 106 is provided in the concrete base 100, two sliding plates 107 symmetrically connected to the telescopic cavity 106 are slidably connected, and a plurality of springs 108 equidistant from front to back are fixedly connected between the sliding plates 107 and the left and right end walls of the telescopic cavity 106, and a plurality of precast bridge deck panels 105 can be placed on the concrete base 100, each of which is symmetrically connected to the telescopic cavity 106. The precast deck panels 105 are all provided with a groove 109, and a square slot 117 is provided in the groove 109, and a fixing plate 112 is fixedly connected in the square slot 117, and a clamping plate 113 passing through the precast deck panels 105 is fixedly connected to the lower end surface of the fixing plate 112, and the clamping plate 113 is located between the two sliding plates 107, so that the force of thermal expansion and contraction of the precast deck panels 105 can be buffered by the expansion and contraction of the spring 108, so as to avoid cracks in the precast deck panels 105;

[0022] The concrete base 100 is provided with two second square holes 115 that are symmetrical front to back, and each of the precast bridge deck panels 105 is provided with a first square hole 110 that is aligned front to back with the second square hole 115. A steel bar 111 passing through each of the first square holes 110 is clamped in the second square hole 115. The steel bar 111 can prevent the precast bridge deck panels 105 from moving up and down, thereby preventing the precast bridge deck panels 105 from tilting, thereby ensuring safety.

[0023] The concrete base 100 is provided with two front-to-back symmetrical closed grooves 114, each of which is aligned front-to-back with the second square hole 115, and a closed plate 104 is fixedly connected in each of the closed grooves 114, so that the front-to-back displacement of the steel bar 111 is limited by the closed grooves 114;

[0024] The concrete base 100 is provided with a plurality of mounting grooves 116, and the mounting grooves 116 are distributed around the upper end surface of the concrete base 100;

[0025] A speed bump 101 is disposed on the upper side of the concrete base 100, and the speed bump 101 is provided with a plurality of circular slot holes 102 aligned with the mounting slots 116 in the vertical direction;

[0026] Each of the mounting grooves 116 is fixedly connected with an expansion screw 103 passing through each of the circular slot holes 102, thereby fixing the speed bump 101 to the upper end surface of the concrete base 100 without affecting the displacement of the precast bridge deck slab 105, preventing debris and other debris from entering the telescopic cavity 106 while reminding the car to slow down.

[0027] Working principle:

[0028] First, two concrete bases 100 are cast on both sides of the bridge, and then a plurality of bridge deck precast panels 105 are placed on the concrete base 100. After the clamping plate 113 passes through the square slot 117 on each bridge deck precast panel 105, the fixing plate 112 is fixed in the square slot 117 so that the clamping plate 113 is clamped between the two sliding plates 107. Then, after the steel bar 111 passes through the first square hole 110 in each bridge deck precast panel 105, the steel bar 111 is clamped to the two second square holes. 115, and two closing plates 104 are fixed in the two closing grooves 114, the steel bars 111 are fixed by the closing plates 104 and the second square holes 115, and the up and down movement of the bridge deck precast plate 105 is limited by the steel bars 111 to prevent the bridge deck precast plate 105 from tilting, so that when the bridge deck precast plate 105 expands and contracts, the sliding plate 107 is driven to move through the clamping plate 113, and the spring 108 is stretched and retracted, and the spring 108 plays a buffering role to avoid cracks on the bridge deck precast plate 105;

[0029] Finally, the expansion screw 103 is passed through the circular slot hole 102 and then driven into the installation slot 116, and the speed bump 101 is fixed on the concrete base 100. The speed bump 101 can prevent debris and other debris from entering the telescopic cavity 106, and at the same time, it can serve as a reminder for passing vehicles to slow down.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled anti-cracking bridge structure, comprising a concrete base (100) cast on both sides of the bridge, characterized in that: The concrete base (100) is provided with a telescopic cavity (106), and two sliding plates (107) are slidably connected in the telescopic cavity (106) and are symmetrical on the left and right. A plurality of springs (108) are fixedly connected between the sliding plates (107) and the left and right end walls of the telescopic cavity (106) and are equidistant from front to back. A plurality of precast bridge deck panels (105) can be placed on the concrete base (100), and each of the precast bridge deck panels (105) is provided with a groove (109), and a square slot hole (117) is provided in the groove (109), and a fixing plate (112) is fixedly connected in the square slot hole (117), and a clamping plate (113) passing through the precast bridge deck panel (105) is fixedly connected to the lower end surface of the fixing plate (112), and the clamping plate (113) is located between the two sliding plates (107); The concrete base (100) is provided with two second square holes (115) which are symmetrical in front and back, and each of the precast bridge deck panels (105) is provided with a first square hole (110) which is aligned in front and back with the second square hole (115), and a steel bar (111) which passes through each of the first square holes (110) is clamped in the second square hole (115), and the steel bar (111) can prevent the precast bridge deck panels (105) from moving up and down.

2. The assembled anti-cracking bridge structure according to claim 1 is characterized in that: The concrete base (100) is provided with two front-to-back symmetrical closed grooves (114), each of the closed grooves (114) is aligned front-to-back with the second square hole (115), and a closed plate (104) is fixedly connected in each of the closed grooves (114).

3. The assembled anti-cracking bridge structure according to claim 2 is characterized in that: The concrete base (100) is provided with a plurality of installation grooves (116), and the installation grooves (116) are distributed around the upper end surface of the concrete base (100).

4. The assembled anti-cracking bridge structure according to claim 3 is characterized in that: A speed bump (101) is provided on the upper side of the concrete base (100), and the speed bump (101) is provided with a plurality of circular slot holes (102) aligned with the mounting slots (116) in the upper and lower directions.

5. The assembled anti-cracking bridge structure according to claim 4 is characterized in that: An expansion screw (103) passing through each circular slot hole (102) is fixedly connected in each of the installation slots (116).

Images