Strong-bearing anti-fatigue prefabricated superposed beam plate for heavy-load freight trunk road bridge

Abstract

The utility model relates to the technical field of prefabricated composite beam slabs, and discloses a strong-bearing anti-fatigue prefabricated composite beam slab for a heavy-load freight trunk bridge, which comprises a prefabricated foundation pillar, a first prefabricated beam slab and a second prefabricated beam slab, first side plates are assembled on two sides below the prefabricated foundation pillar, and caps are fixed on the side edges of second bolts. The second side plates are assembled on the upper positions of the two sides of the prefabricated foundation column, the upper connecting plate is connected between the second side plates on the two sides, the upper connecting plate covers the top of the second prefabricated beam plate, the inserting groove is formed in the top of the prefabricated foundation column, the second connecting plate covers the upper portion of the prefabricated foundation column, and meanwhile the second connecting plate covers the upper portion of the prefabricated foundation column. And similarly, a lower connecting plate, a first side plate and a first connecting plate are arranged on the lower portion of the prefabricated foundation column, so that the exposed area of the first prefabricated beam plate and the exposed area of the second prefabricated beam plate can be reduced, the problem of concrete cracking is solved, and the overall use strength is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of prefabricated composite beam plate, and specifically relates to a strong bearing and fatigue resistant prefabricated composite beam plate for heavy load freight arterial bridge. BACKGROUND

[0002] Heavy load transportation refers to a transportation mode under the condition of advanced railway technical equipment, which expands train marshalling and improves train weight, so the heavy load freight arterial bridge is a main arterial bridge specially designed to bear heavy freight vehicles frequently passing, and the core features are high load capacity, high durability and special structure design.

[0003] Therefore, in the process of heavy load freight arterial bridge construction, the prefabricated composite beam plate needs to be used, the composite beam plate is an engineering building material composed of two or more layers of concrete plates, which is mainly used for the beam plate structure of large-span buildings, has high bearing capacity and rigidity, and can effectively reduce the weight and support pressure of the building. Based on the application condition of the heavy load freight arterial bridge, the concrete plate is mostly used, and cracking and other phenomena are prone to occur under the exposed use, which affects the service life. UTILITY MODEL CONTENT

[0004] The utility model discloses a strong bearing and fatigue resistant prefabricated composite beam plate for heavy load freight arterial bridge, which solves the problem of cracking and other phenomena prone to occur under the exposed use and affects the service life based on the application condition of the heavy load freight arterial bridge.

[0005] To achieve the above object, the utility model provides the following technical scheme: a strong bearing and fatigue resistant prefabricated composite beam plate for heavy load freight arterial bridge, which comprises a prefabricated base column, a first prefabricated beam plate and a second prefabricated beam plate, first side plates are arranged on both sides of the bottom of the prefabricated base column, a lower connecting plate is connected between the two first side plates, a first connecting plate is connected between the same side first side plates, a first positioning column is fixed to the top end of the first connecting plate, a first bolt is arranged between the first side plate and the first positioning column, second side plates are arranged on both sides of the top of the prefabricated base column, an upper connecting plate is fixed between the two second side plates, a second connecting plate is fixed to the upper position between the same side second side plates, a second positioning column is fixed to the bottom end of the second connecting plate, an insertion slot is formed in the top of the prefabricated base column, a first connecting groove is formed in the second positioning column, a third connecting groove is formed in the side of the insertion slot in the prefabricated base column, a second connecting groove is formed in the second side plate, a second bolt is connected in the second connecting groove, and a cap is fixed to the side of the second bolt.

[0006] As a further technical scheme of the utility model, the second positioning column is symmetrically distributed about the central axis of the second connecting plate, and the position of the insertion slot corresponds to that of the second positioning column.

[0007] As a further technical scheme of the utility model, the second connecting slot, the third connecting slot and the first connecting slot are all in threaded connection with the second bolt, and the outer diameter of the second positioning column is smaller than the inner diameter of the insertion slot.

[0008] As a further technical scheme of the utility model, the second side plate is symmetrically distributed about the central axis of the prefabricated base column, and the first side plate is symmetrically distributed about the central axis of the prefabricated base column.

[0009] As a further technical scheme of the utility model, the same insertion slot is formed in the bottom of the prefabricated base column, and the insertion slot in the bottom corresponds to the first positioning column.

[0010] As a further technical scheme of the utility model, the outer side wall of the lower connecting plate and the upper connecting plate is coated with a wear-resistant layer, and the lower connecting plate and the upper connecting plate are uniformly distributed with reinforcing components.

[0011] As a further technical scheme of the utility model, the reinforcing component comprises a first reinforcing rod and a connecting reinforcing rod, and the connecting reinforcing rod is connected between the first reinforcing rods.

[0012] As a further technical scheme of the utility model, the first reinforcing rib is uniformly distributed between the first prefabricated beam plate and the second prefabricated beam plate, the second reinforcing rib is uniformly distributed between the prefabricated base column and the first prefabricated beam plate and between the prefabricated base column and the second prefabricated beam plate, and the connecting rod is connected between the first reinforcing rib and the second reinforcing rib.

[0013] Compared with the prior art, the heavy-load freight highway bridge strong-bearing and fatigue-resistant prefabricated composite beam plate has the advantages that the use strength is improved, and the protection and connection reinforcement capabilities of the prefabricated composite beam plate are improved.

[0014] (1) The second side plate is assembled at the upper position on both sides of the prefabricated base column, the upper connecting plate is connected between the two second side plates, the insertion slot is formed in the top of the prefabricated base column, the second connecting plate covers the upper part of the prefabricated base column, the second positioning column is positioned in one-to-one correspondence with the insertion slot, the second bolt is used to threadedly lock the first connecting slot, the second connecting slot and the third connecting slot, and the lower connecting plate, the first side plate and the first connecting plate are arranged below the prefabricated base column, so that the exposed area of the first prefabricated beam plate and the second prefabricated beam plate is reduced, the problem of concrete cracking is reduced, and the use strength is improved.

[0015] (2) by the wear-resistant layer is coated on the outside wall of the lower adapter plate and the upper adapter plate, at this time the wear-resistant layer is located in the outermost purpose of wear protection, while the inside of the lower adapter plate and the upper adapter plate are evenly distributed with the reinforcing assembly, which is composed of the first reinforcing rod, the reinforcing rod, so as to improve the overall deformation resistance in the process of work, so as to improve the overall protection effect;

[0016] (3) by the second reinforcing rib is evenly distributed between the prefabricated base column and the first prefabricated beam plate, and the second reinforcing rib is evenly distributed between the prefabricated base column and the second prefabricated beam plate, and the first reinforcing rib is evenly distributed between the first prefabricated beam plate and the second prefabricated beam plate, and the connecting rod is evenly distributed between the first reinforcing rib and the second reinforcing rib, so as to improve the strength effect of the adapter in the process of work, so as to improve the overall reinforcing capacity in the process of work. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view structure schematic diagram of the utility model;

[0018] Figure 2 It is the first reinforcing rib overhead structure schematic diagram of the utility model;

[0019] Figure 3 It is the prefabricated base column structure schematic diagram of the utility model;

[0020] Figure 4 It is the upper adapter plate local section structure schematic diagram of the utility model.

[0021] In the drawing: 1, prefabricated base column; 2, first prefabricated beam plate; 3, first reinforcing rib; 4, lower adapter plate; 5, first side plate; 6, first adapter plate; 7, first bolt; 8, first positioning column; 9, second reinforcing rib; 10, second prefabricated beam plate; 11, upper adapter plate; 12, second side plate; 13, connecting rod; 14, second positioning column; 15, insertion slot; 16, second adapter plate; 17, first connecting slot; 18, second bolt; 19, cap; 20, second connecting slot; 21, third connecting slot; 22, wear-resistant layer; 23, reinforcing assembly; 24, first reinforcing rod; 25, reinforcing rod. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a kind of embodiment provided by the utility model: a kind of heavy load freight arterial road bridge is used to strong bearing anti-fatigue prefabricated composite beam plate, including prefabricated base column 1, first prefabricated beam plate 2, second prefabricated beam plate 10, the both sides position of prefabricated base column 1 below is equipped with first side plate 5, and the both sides first side plate 5 between is connected with lower connecting plate 4, and the both sides first side plate 5 between is connected with first connecting plate 6, and the top of first connecting plate 6 is fixed with first positioning column 8, and the both sides first side plate 5 and first positioning column 8 are equipped with first bolt 7, and the both sides position of prefabricated base column 1 top is equipped with second side plate 12, and the both sides second side plate 12 between is fixed with upper connecting plate 11, and the both sides second side plate 12 between is fixed with second connecting plate 16 by upper position, and the bottom of second connecting plate 16 is fixed with second positioning column 14, and the top of prefabricated base column 1 is equipped with insertion slot 15, and the first connecting groove 17 of second positioning column 14 is equipped with, and the side position of prefabricated base column 1 inside insertion slot 15 is equipped with third connecting groove 21, and the second connecting groove 20 of second side plate 12 is equipped with, and the inside of second connecting groove 20 is connected with second bolt 18, and the side of second bolt 18 is fixed with cap head 19.

[0024] Second positioning column 14 is symmetrically distributed about the central axis of second connecting plate 16, and the positions of insertion slot 15 and second positioning column 14 correspond one-to-one.

[0025] Second connecting groove 20, third connecting groove 21 and first connecting groove 17 are threadedly connected with second bolt 18, and the outer diameter of second positioning column 14 is smaller than the inner diameter of insertion slot 15.

[0026] Second side plate 12 is symmetrically distributed about the central axis of prefabricated base column 1, and first side plate 5 is symmetrically distributed about the central axis of prefabricated base column 1.

[0027] The bottom of prefabricated base column 1 is also provided with insertion slot 15, and the insertion slot 15 in the bottom corresponds one-to-one with first positioning column 8.

[0028] The outer walls of lower connecting plate 4 and upper connecting plate 11 are coated with wear-resistant layer 22, and the inside of lower connecting plate 4 and upper connecting plate 11 is uniformly distributed with reinforcing assembly 23.

[0029] Reinforcing assembly 23 includes first reinforcing rod 24 and connecting reinforcing rod 25, and connecting reinforcing rod 25 is connected between first reinforcing rod 24.

[0030] First reinforcing rib 3 is uniformly distributed between first prefabricated beam plate 2 and second prefabricated beam plate 10, second reinforcing rib 9 is uniformly distributed between prefabricated base column 1 and first prefabricated beam plate 2 and prefabricated base column 1 and second prefabricated beam plate 10, and connecting rod 13 is connected between first reinforcing rib 3 and second reinforcing rib 9.

[0031] Further, in prefabrication, the pre-burying of the first reinforcing rib 3 and the second reinforcing rib 9 is sequentially completed, so that the two prefabricated base columns 1 and the first prefabricated beam plate 2 and the second prefabricated beam plate 10 are sequentially prefabricated and poured.

[0032] Working principle: first, the second side plate 12 is assembled on both sides of the prefabricated base column 1 in the upper position, the upper connecting plate 11 is connected between the two second side plates 12, the second connecting plate 16 is covered on the top of the second prefabricated beam plate 10, the second positioning column 14 is positioned in the corresponding slot 15 on the top of the prefabricated base column 1, then the second bolt 18 is screwed and locked at the positions of the first connecting slot 17, the second connecting slot 20 and the third connecting slot 21, and the lower connecting plate 4, the first side plate 5 and the first connecting plate 6 are arranged below the prefabricated base column 1, the wear-resistant layer 22 is coated on the outer side wall of the lower connecting plate 4 and the upper connecting plate 11, the reinforcing assembly 23 is uniformly distributed in the lower connecting plate 4 and the upper connecting plate 11 for reinforcement, and the pre-burying of the first reinforcing rib 3 and the second reinforcing rib 9 is sequentially completed in prefabrication.

[0033] In the description of the utility model, it is explained that, unless otherwise explicitly provided and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, it can be detachably connected, or integrally connected, it can be mechanically connected, it can be electrically connected, it can be directly connected, it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

Claims

1. A strong load-bearing fatigue-resistant prefabricated composite girder slab for heavy cargo arterial bridges, comprising a prefabricated base column (1), a first prefabricated girder slab (2), a second prefabricated girder slab (10), characterized in that: The first side plate (5) is arranged at both sides below the prefabricated base column (1), the lower connecting plate (4) is connected between the two first side plates (5), the first connecting plate (6) is connected between the same side first side plates (5), the top end of the first connecting plate (6) is fixedly connected with the first positioning column (8), the first bolt (7) is arranged between the first side plate (5) and the first positioning column (8), the second side plate (12) is arranged at both sides of the top of the prefabricated base column (1), the upper connecting plate (11) is fixedly connected between the two second side plates (12), the second connecting plate (16) is fixedly connected at the upper position between the same side second side plates (12), the bottom end of the second connecting plate (16) is fixedly connected with the second positioning column (14), the insertion slot (15) is arranged in the prefabricated base column (1), the first connecting slot (17) is arranged in the second positioning column (14), the third connecting slot (21) is arranged in the prefabricated base column (1) at the side of the insertion slot (15), the second connecting slot (20) is arranged in the second side plate (12), the second bolt (18) is connected in the second connecting slot (20), and the cap head (19) is fixedly connected to the side of the second bolt (18).

2. The strong load-carrying fatigue-resistant precast composite girder slab for heavy truck highway bridges according to claim 1, characterized in that: The second positioning column (14) is symmetrically distributed about the central axis of the second connecting plate (16), and the insertion slot (15) corresponds to the position of the second positioning column (14) one by one.

3. The strong load-carrying fatigue-resistant precast composite girder slab for heavy truck highway bridges of claim 1, wherein: The second connecting slot (20), the third connecting slot (21) and the first connecting slot (17) are all threadedly connected with the second bolt (18), and the outer diameter of the second positioning column (14) is smaller than the inner diameter of the insertion slot (15).

4. The strong load-carrying fatigue-resistant precast composite girder slab for heavy truck highway bridges of claim 1 wherein: The second side plate (12) is symmetrically distributed about the central axis of the prefabricated base column (1), and the first side plate (5) is symmetrically distributed about the central axis of the prefabricated base column (1).

5. The strong load-carrying fatigue-resistant precast composite girder slab for heavy truck highway bridges of claim 1 wherein: The same insertion slot (15) is arranged in the bottom of the prefabricated base column (1), and the insertion slot (15) in the bottom corresponds to the first positioning column (8) one by one.

6. The strong load carrying fatigue resistant precast superimposed beam slab for heavy duty truck bridge approach according to claim 1, wherein: The outer side walls of the lower connecting plate (4) and the upper connecting plate (11) are coated with wear-resistant layers (22), and the lower connecting plate (4) and the upper connecting plate (11) are uniformly distributed with reinforcing assemblies (23).

7. The strong load-carrying fatigue-resistant precast composite girder slab for heavy truck highway bridges of claim 6, wherein: The reinforcing assembly (23) comprises a first reinforcing rod (24) and a connecting reinforcing rod (25), and the connecting reinforcing rod (25) is connected between the first reinforcing rods (24).

8. The strong load carrying fatigue resistant precast superimposed beam slab for heavy duty truck bridge approach according to claim 1, wherein: The first reinforcing rods (3) are uniformly distributed between the first prefabricated beam plates (2) and the second prefabricated beam plates (10), the second reinforcing rods (9) are uniformly distributed between the prefabricated base column (1) and the first prefabricated beam plates (2) and between the prefabricated base column (1) and the second prefabricated beam plates (10), and the connecting rods (13) are connected between the first reinforcing rods (3) and the second reinforcing rods (9).

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