CN207749409U - Detachable assembling type reinforced concrete bridge pier cushion cap connection structure - Google Patents

Abstract

The utility model provides a detachable and assembled reinforced concrete pier cap connecting structure, the lower surface of the upper connecting steel plate is provided with several bolt holes along the axial direction; Buried in reinforced concrete piers and welded with stress bars, one end of the wire protrudes through the open end of the lower end of the steel sleeve and through the reserved bolt hole of the upper connecting steel plate; the size of the lower connecting steel plate is the same as that of the upper connecting steel plate, And the corresponding position has the same reserved bolt hole, and a hole for pouring concrete is reserved in the center of the lower connecting steel plate; the steel pipe is placed under the lower connecting steel plate, and the outer diameter of the steel pipe is larger than the diameter of the hole, and the upper part of the upper end of the steel plate is connected with the lower The lower surface of the steel plate is welded so that the projection of the hole is completely located in the steel pipe; the lower end of the steel pipe is pre-embedded in the concrete cap; the screw bolts exposed outside the upper connecting steel plate are inserted into the bolt holes of the lower connecting steel plate to splice the bridge pier with the cap .

Description

Connection structure of detachable assembled reinforced concrete bridge pier cap

technical field

The utility model relates to the technical field of structural engineering, in particular to a structure of an assembled bridge pier and cap.

Background technique

In recent years, due to economic development and rapid urbanization, the urban population is increasing, and the pressure on urban transportation infrastructure is increasing. In order to reduce urban traffic pressure and save valuable urban construction land, more and more cities build viaducts to realize traffic diversion and save land.

For urban bridge construction, how to speed up construction to reduce the impact of construction on urban traffic is becoming more and more important. In order to achieve rapid construction and subsequent rapid repair, prefabricated piers and bridge abutment connection nodes can be used.

Prefabricated concrete structure has the advantages of high bearing capacity, good plasticity and ductility, good fire resistance and good economic effect, and has been widely used in various fields of civil engineering in recent years. Due to the energy saving and environmental protection of the assembled composite structure, fast construction speed and high degree of industrialization, it can solve many problems such as the low level of industrialization of bridge construction in my country, low labor productivity and low quality of traditional bridge products, speed up the construction of urban bridges, and promote the development of the industry.

Utility model content

The utility model proposes a detachable assembled reinforced concrete pier cap connecting structure, which aims to overcome the deficiencies of the prior art, meet the mechanical properties of the nodes, realize the assembly of the structure, and speed up the assembly speed of the components. Reduce the pressure of urban traffic and fully adapt to the requirements and characteristics of the prefabricated composite structure system.

In order to achieve the above purpose, the technical solution proposed by the utility model is a detachable assembled reinforced concrete pier cap connection structure, including: upper and lower connecting steel plates, steel pipes, steel sleeves, trapezoidal stiffeners, screw bolts, reinforced concrete pier , concrete cap;

The lower surface of the upper connecting steel plate is provided with several bolt holes along the axial direction, and the bolt holes are at a certain distance from the outer circumference of the upper connecting steel plate;

Both ends of the steel sleeve along the axial direction are open ends, and the steel sleeve is sleeved outside the end of the reinforced concrete pier through the open end of the upper end, and the upper connecting steel plate is placed in the opening of the lower end of the steel sleeve and the smooth end of the screw bolt corresponding to the bolt hole is pre-embedded in the reinforced concrete pier and welded with the stress bar, and the end of the wire passes through the open end of the lower end of the steel sleeve, and the through The reserved bolt holes of the upper connecting steel plate protrude;

The size of the lower connecting steel plate is the same as that of the upper connecting steel plate, and the corresponding positions have the same reserved bolt holes, and a hole for pouring concrete is reserved in the center of the lower connecting steel plate; the steel pipe is placed under the lower connecting steel plate, and the The outer diameter of the steel pipe is larger than the diameter of the hole, and the upper part of the steel plate is welded to the lower surface of the lower connecting steel plate, so that the projection of the hole is completely located in the steel pipe; the lower end of the steel pipe is pre-embedded in the concrete cap ; The lower surface of the lower connecting steel plate is connected with a trapezoidal stiffener, and the other end of the trapezoidal stiffener is embedded in the concrete cap and overlapped with the stressed steel bar;

The screw bolts exposed outside the upper connecting steel plate are inserted into the bolt holes of the lower connecting steel plate, and the bolts are fastened to realize the splicing of the reinforced concrete bridge pier and the concrete cap.

In a preferred embodiment: the long right-angle side of the trapezoidal stiffener is connected to the side wall of the steel pipe, and the short right-angle side is connected to the lower connecting steel plate.

In a preferred embodiment: the trapezoidal stiffeners are evenly distributed among the reserved bolt holes of the lower connecting steel plates.

In a preferred embodiment: the lower end of the trapezoidal stiffener is pre-embedded in the concrete cap and is welded to the main reinforcement in the concrete cap.

In a preferred embodiment: the steel sleeve is sleeved on the outside of the reinforced concrete pier, and extends axially to the outside of the end face of the reinforced concrete pier for welding with the upper connecting steel plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. The utility model provides a detachable and assembled reinforced concrete bridge pier cap connection structure. All the components are processed in the factory. After being transported to the construction site, they can be assembled and connected at the construction site, which reduces the on-site wet work and template work , ensuring the quality of on-site construction, improving the efficiency of building industrial assembly, reducing the impact of construction on urban traffic, and greatly improving safety and reliability.

2. The utility model provides a detachable assembled reinforced concrete pier cap connection structure. By assembling and docking the reinforced concrete pier and the concrete cap, the bridge pier cap is assembled and connected with bolts, so that the concrete pier and the cap are formed. Joint force after a whole. Even if it is damaged under external load, it can be replaced quickly, speeding up assembly and saving time.

3. The utility model provides a detachable and assembled reinforced concrete pier cap connection structure. The center of the steel pipe is filled with poured concrete and the welded stiffening ribs around it have high strength and rigidity, good stability, and convenient processing to meet actual needs.

4. The utility model provides a detachable and assembled reinforced concrete pier cap connection structure. Screw bolts are set between the upper connecting steel plate and the main stress reinforcement for transition, which facilitates construction and speeds up the production and has better connection performance.

Description of drawings

Fig. 1 is a perspective view of a detachable assembled reinforced concrete pier cap connection structure in a preferred embodiment of the present invention.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Figure 1, a detachable assembled reinforced concrete pier cap connection structure, including reinforced concrete pier 1, screw bolt 2, steel sleeve 3, upper connecting steel plate 4, lower connecting steel plate 5, trapezoidal stiffener 6 , 7 concrete caps, 8 steel pipes.

The lower surface of the upper connecting steel plate 4 is provided with several bolt holes along the axial direction, and the distance between the bolt holes and the outer circumference of the upper connecting steel plate is a certain distance; the two ends of the steel sleeve 3 along the axial direction are openings end, the steel sleeve 3 is sleeved outside the end of the reinforced concrete pier 1 through the open end of the upper end, and the upper connecting steel plate 4 is placed at the open end of the lower end of the steel sleeve 3; and, with the bolt hole The smooth end of the one-to-one corresponding screw bolt 2 is pre-embedded in the reinforced concrete pier 1 and welded with the stress bar, and the end of the wire passes through the open end of the lower end of the steel sleeve 3 and the reserved part of the upper connecting steel plate 4 Bolt holes stick out;

The size of the lower connecting steel plate 5 is consistent with that of the upper connecting steel plate 4, and the corresponding positions have the same reserved bolt holes, and a hole for pouring concrete is reserved in the center of the lower connecting steel plate 5; the steel pipe 8 is placed in the lower connecting steel plate 5 Below, and the outer diameter of the steel pipe 8 is larger than the diameter of the hole, the upper part of the upper end of the steel plate 8 is welded to the lower surface of the lower connecting steel plate 5, so that the projection of the hole is completely located in the steel pipe 8; the steel pipe 8 is pre-embedded in the concrete cap 7; the lower surface of the lower connecting steel plate 5 is connected with a trapezoidal stiffener 6, and the other end of the trapezoidal stiffener 6 is embedded in the concrete cap 7 and overlaps with the reinforced steel bar. catch;

The screw bolts 2 exposed outside the upper connecting steel plate 4 are inserted into the bolt holes of the lower connecting steel plate 5, and the bolts are tightened to realize splicing of the reinforced concrete pier 1 and the concrete cap 7.

The above-mentioned bolt screw 2, steel sleeve 3, trapezoidal stiffener 6, steel pipe 8, upper connecting steel plate 4, and lower connecting steel plate 5 can all be processed in the factory according to the drawings, and assembled into the first connecting piece and the second connecting piece ; On the construction site, only the first connector needs to be pre-embedded at the bottom of the reinforced concrete pier 1, and the second connector is pre-embedded at the top of the reinforced concrete cap 7; The screw bolts 2 are welded, and the stressed steel bar in the concrete cap 7 is welded with the stiffening plate 6 in the second connector. On the construction site, the first connector in the reinforced concrete pier 1 and the reinforced concrete cap 7 are welded together. The second connecting piece is docked, and the screw bolt 2 can be used to fix the first connecting piece and the second connecting piece of the reinforced concrete pier 1 and the concrete cap 7, so as to realize the splicing between the reinforced concrete pier 1 and the concrete cap 7 .

Therefore, all components of the above-mentioned detachable and assembled reinforced concrete pier cap connection structure are processed in the factory, and after being transported to the construction site, they can be assembled and connected at the construction site, which reduces on-site wet work and formwork work, and ensures on-site construction. Quality improves the efficiency of building industrial assembly, reduces the impact of construction on urban traffic, and greatly improves safety and reliability.

By assembling and docking the reinforced concrete pier 1 and the concrete cap 7, the screw bolts 2 are used to assemble and connect the reinforced concrete pier 1 and the concrete cap 7, so that the concrete pier 1 and the concrete cap 7 form a whole and then jointly bear force. Even if it is damaged under external load, it can be replaced quickly, speeding up assembly and saving time.

The center of the steel pipe 8 is filled with concrete, and the stiffeners 6 are welded around the steel pipe 8, so that the steel pipe 8 has high strength and rigidity, good stability, and convenient processing to meet actual needs.

In this embodiment, the long right-angled side of the trapezoidal stiffener 6 is connected to the side wall of the steel pipe 8 , and the short right-angled side is connected to the lower connecting steel plate 5 . The trapezoidal stiffeners 6 are evenly distributed among the reserved bolt holes of the lower connecting steel plate 5 . The lower end of the trapezoidal stiffener 6 is pre-embedded in the concrete cap 7 and is welded to the main reinforcement in the concrete cap 7 .

The steel sleeve 3 is sleeved on the outside of the reinforced concrete pier 1, and extends axially to the outside of the end face of the reinforced concrete pier 1 to be welded with the upper connecting steel plate 4.

The screw bolt 2 has a certain length and is evenly arranged corresponding to the position of the bolt hole of the upper connecting steel plate 4; the steel sleeve 3 can cover the end of the reinforced concrete pier 1 with a certain length; the steel sleeve 3 can The concrete at the end of the reinforced concrete pier 1 provides constraints; the long right-angled side of the trapezoidal stiffener 6 is connected to the steel pipe 8, and the short right-angled side is connected to the lower connecting steel plate 5, and is evenly distributed among the reserved bolt holes of the lower connecting steel plate 5; The steel sleeve 3 should be welded together with the upper connecting steel plate 4; the steel pipe 8 can provide constraints to the concrete at the end of the concrete cap 7.

The above are only preferred embodiments of the present utility model, so the technical scope of the present utility model cannot be limited accordingly. Therefore, all equivalent changes and modifications made according to the technical essence of the present utility model and the content of the description should belong to the scope of this utility model. Within the scope of new technical solutions.

Claims (5)

1. a kind of detachable assembling type reinforced concrete bridge pier cushion cap connection structure, it is characterised in that including：Linking steel plate up and down, Steel pipe, steel bushing, trapezoidal ribbed stiffener, screw rod bolt, reinforced concrete bridge pier, concrete bearing platform；

The lower surface of the upper linking steel plate is axially provided through several bolts hole, and the bolt hole is connected steel on The periphery of plate is apart from certain distance；

The both ends of the steel bushing axially are open end, and the steel bushing is set in reinforced concrete by the open end of upper end Outside native bridge pier end, at the open end for the lower end that the upper linking steel plate is placed on steel bushing；Also, one by one with the bolt hole Smooth one end of corresponding screw rod bolt is embedded in reinforced concrete bridge pier welds with principal rod, and one end with silk passes through steel bushing The open end of the lower end of cylinder and the prepared screw-bolt hole by upper linking steel plate stretch out；

The lower linking plate size is consistent with upper linking plate size, and corresponding position has identical prepared screw-bolt hole, downlink Reserve the hole of a casting concrete in the center for connecing steel plate；The steel pipe is placed in the lower section of lower linking steel plate, and the steel pipe Outer diameter be more than the diameter of described hole, the lower surface welding that the upper end top of the steel plate is connected steel plate with lower so that institute The projection for stating hole is fully located in steel pipe；The lower end of the steel pipe is embedded into concrete bearing platform；The lower linking steel plate Lower surface is connected with trapezoidal ribbed stiffener, is taken in the other end Transducers Embedded in Concrete cushion cap of the trapezoidal ribbed stiffener and with steel bar stress It connects；

The screw rod bolt being exposed to outside linking steel plate is inserted into the bolt hole of lower linking steel plate, and bolt is reinforced, and realizes steel Reinforced concrete bridge pier splices with concrete bearing platform.

2. a kind of detachable assembling type reinforced concrete bridge pier cushion cap connection structure according to claim 1, feature exist In：The long right-angle side of the trapezoidal ribbed stiffener is connect with steel pipe side wall, and short right-angle side is connect with lower linking steel plate.

3. a kind of detachable assembling type reinforced concrete bridge pier cushion cap connection structure according to claim 2, feature exist In：The trapezoidal ribbed stiffener is evenly distributed between the reserved bolt hole of lower linking steel plate.

4. a kind of detachable assembling type reinforced concrete bridge pier cushion cap connection structure according to claim 3, feature exist In：The lower end of the trapezoidal ribbed stiffener is embedded in concrete bearing platform and carries out welding company with the main stress muscle in concrete bearing platform It connects.

5. a kind of detachable assembling type reinforced concrete bridge pier cushion cap connection structure according to claim 1, feature exist In：The steel bushing is set in outside reinforced concrete bridge pier, and axially extend to outside the end face of reinforced concrete bridge pier with Upper linking steel plate welding.