CN217579811U

CN217579811U - Bridge three-column pier anti-seismic reinforcing structure with dual energy consumption measures

Info

Publication number: CN217579811U
Application number: CN202121945738.7U
Authority: CN
Inventors: 李翔平; 孙治国; 王严信; 孙熠
Original assignee: Institute of Disaster Prevention
Current assignee: Institute of Disaster Prevention
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-10-14
Anticipated expiration: 2031-08-18

Abstract

The utility model provides a bridge three-column pier anti-seismic reinforcing structure with double energy consumption measures, a steel truss tie beam component and a buckling restrained brace component double energy consumption system are arranged between three piers, the steel truss tie beam component not only provides enough rigidity, strength and constraint capacity, but also can ensure that the piers have enough energy consumption capacity, and through the arrangement of an anchor bar-shear resistant plate anchoring node structural form, the concept of bending shear separation is adopted, and the stress mechanism is clear; the buckling-restrained brace component can yield without bending when being pulled and pressed, so that a good hysteretic energy dissipation effect is achieved, and the damage to a tie beam and a pier under strong shock is avoided; the buckling restrained brace damaged after the earthquake can be quickly replaced, and the requirement of quickly recovering the service function of the bridge after the earthquake is met; the components are prefabricated in factories, and the components can be simply assembled on site without wet operations such as concrete pouring and the like, so that the construction is simple and the construction period is short.

Description

Bridge three-column pier anti-seismic reinforcing structure with dual energy consumption measures

Technical Field

The utility model relates to a civil engineering field especially relates to a bridge three-column pier antidetonation reinforced structure with dual power consumption measure.

Background

The multi-column pier is widely applied to the construction of large-scale bridge engineering in cities in China. For a general multi-column pier, when the height of a pier body is higher, a transverse tie beam is often required to be arranged to improve the stability of a bridge structure and improve the stress performance and the seismic performance of the structure. In the seismic design of bridges, the transverse beam is generally suitable to be used as a ductile component, and the seismic energy is consumed through the plastic deformation generated by the transverse beam, so that the seismic reaction of the structure is lightened. The traditional reinforced concrete tie beam has limited ductility energy consumption capability, and is difficult to repair after being damaged and difficult to replace after earthquake.

Therefore, the earthquake-resistant reinforcing structure with the three pier piers for the bridge with the dual energy consumption measures is urgently needed, and the problems that the existing reinforced concrete tie beam is limited in ductility energy consumption capability, difficult to repair after earthquake and difficult to replace, and the multi-pier bridge is poor in earthquake-resistant effect can be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three pier antidetonation reinforced structure of bridge with dual power consumption measure to it is limited to solve above-mentioned current reinforced concrete tie beam ductility power consumption ability, and destroys the restoration difficulty after shaking, and is difficult for changing, leads to the poor problem of many pier bridge antidetonation effect.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a bridge three-column pier anti-seismic reinforcing structure with double energy consumption measures, which comprises a first pier, a second pier and a third pier which are arranged side by side, wherein the bottoms of the first pier, the second pier and the third pier are supported by bearing platforms, the tops of the first pier, the second pier and the third pier are jointly supported by a capping beam, and steel truss tie beam assemblies are connected between the middle part of the first pier and the middle part of the second pier and between the middle part of the second pier and the middle part of the third pier;

and anti-buckling support assemblies are arranged between the middle part of the first pier and the top part of the second pier, between the middle part of the first pier and the bottom part of the second pier, between the middle part of the third pier and the top part of the second pier, and between the middle part of the third pier and the bottom part of the second pier.

Preferably, the first pier, the second pier, the third pier and the capping beam are all of reinforced concrete structures.

Preferably, the first pier, the second pier and the third pier are all internally provided with embedded components, and the embedded components are connected with the steel truss tie beam components through connecting plates.

Preferably, the embedded assembly comprises an embedded plate, the embedded plate is connected with the bridge pier through anchor bars, the side portion of the embedded plate is vertically welded with an anti-shearing plate, the middle portion of the anti-shearing plate is vertically welded with studs, and the embedded plate and the connecting plate are welded and fixed.

Preferably, the steel truss tie beam assembly comprises an upper chord and a lower chord which are arranged in parallel, web members are welded between the upper chord and the lower chord, and the upper chord and the lower chord are respectively welded and fixed with the corresponding connecting plates.

Preferably, the upper chord and the lower chord both adopt T-shaped steel, and the web members adopt angle steel.

Preferably, buckling restrained brace subassembly includes the bracing piece, the both ends of bracing piece all are connected with the anchor slab, anchor slab and steel sheet welded fastening, the steel sheet passes through the bolt and is connected with the pier.

The utility model discloses for prior art gain following beneficial technological effect:

the utility model provides a have a bridge three-column mound antidetonation reinforced structure of dual power consumption measure, set up the dual power consumption system of steel truss tie beam subassembly and buckling restrained brace subassembly between three piers, the steel truss tie beam subassembly has not only provided sufficient rigidity, intensity and restraint ability, can guarantee that the pier has sufficient power consumption ability again, through setting up the anchor node structural style of anchor bar-shear resisting board, adopt the thought of curved shear separation, the mechanism of force is clear; the buckling-restrained brace component can yield without bending when being pulled and pressed, so that a good hysteretic energy dissipation effect is achieved, and the damage to a tie beam and a pier under strong shock is avoided; the buckling restrained brace damaged after the earthquake can be quickly replaced, and the requirement of quickly recovering the service function of the bridge after the earthquake is met; the components are prefabricated in factories and can be simply assembled on site, wet operations such as concrete pouring and the like are not needed, the construction is simple, and the construction period is short.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic view of an anti-seismic reinforcing structure with double energy-consuming measures for three pier piers of a bridge provided by the utility model;

FIG. 2 is a schematic structural view of a steel truss tie beam assembly in a three-pier seismic strengthening structure of a bridge with dual energy consumption measures provided by the utility model;

fig. 3 is a schematic structural view of a pre-buried assembly in an anti-seismic reinforcing structure of a bridge three-column pier provided by the utility model and having dual energy consumption measures;

fig. 4 is a schematic structural view of a buckling restrained brace assembly in a three-pier seismic reinforcement structure of a bridge with dual energy dissipation measures provided by the utility model;

in the figure: 1: first pier, 2: second bridge pier, 3: third pier, 4: bearing platform, 5: capping beam, 6: steel truss tie beam assembly, 61: upper chord, 62: lower chord, 63: web member, 7: buckling restrained brace assembly, 71: support rod, 72: anchor plate, 73: steel sheet, 74: bolt, 8: pre-buried subassembly, 81: embedded plate, 82: anchor bar, 83: shear resistant plate, 84: stud, 9: a connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a three pier antidetonation reinforced structure of bridge with dual power consumption measure to it is limited to solve current reinforced concrete tie beam ductility power consumption ability, and destroys the restoration difficulty after shaking, and is difficult for changing, leads to the poor problem of many piers bridge antidetonation effect.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Example 1:

the embodiment provides a bridge three-column pier anti-seismic reinforcing structure with double energy consumption measures, as shown in fig. 1, the structure comprises a first pier 1, a second pier 2 and a third pier 3 which are arranged side by side, the bottoms of the first pier 1, the second pier 2 and the third pier 3 are all supported by a bearing platform 4, the tops of the first pier 1, the second pier 2 and the third pier 3 are jointly used for supporting a capping beam 5, and steel truss tie beam assemblies 6 are connected between the middle part of the first pier 1 and the middle part of the second pier 2 and between the middle part of the second pier 2 and the middle part of the third pier 3; and anti-buckling support assemblies 7 are arranged between the middle part of the first pier 1 and the top part of the second pier 2, between the middle part of the first pier 1 and the bottom part of the second pier 2, between the middle part of the third pier 3 and the top part of the second pier 2 and between the middle part of the third pier 3 and the bottom part of the second pier 2.

Specifically, the first pier 1, the second pier 2, the third pier 3 and the cover beam 5 are all of reinforced concrete structures.

Further, first pier 1, second pier 2 and third pier 3 all embed to have pre-buried subassembly 8, and pre-buried subassembly 8 is connected with steel truss tie beam assembly 6 through connecting plate 9.

Further, as shown in fig. 1 and 3, the embedded assembly 8 includes embedded plates 81, the embedded plates 81 are connected with the pier through anchor bars 82, the side portions of the embedded plates 81 are vertically welded with anti-shearing plates 83, the middle portions of the anti-shearing plates 83 are vertically welded with

studs

84,4 studs 84 are symmetrically arranged in two rows, and the embedded plates 81 are welded and fixed with the connecting plates 9.

Further, as shown in fig. 1 and 2, the steel truss tie beam assembly 6 comprises an upper chord 61 and a lower chord 62 which are arranged in parallel, a web member 63 is welded between the upper chord 61 and the lower chord 62, and the upper chord 61 and the lower chord 62 are respectively welded and fixed with the corresponding connecting plates 9.

Furthermore, the upper chord 61 and the lower chord 62 both adopt T-shaped steel, and the web member 63 adopts angle steel.

Further, as shown in fig. 1 and 4, the buckling restrained brace assembly 7 includes a support rod 71, both ends of the support rod 71 are connected with anchor plates 72, the anchor plates 72 are welded and fixed with steel plates 73, and the steel plates 73 are connected with the pier through bolts 74.

The utility model provides a three pier antidetonation reinforced structure of bridge with dual power consumption measure sets up the dual power consumption system of steel truss tie beam subassembly 6 and buckling restrained brace subassembly 7 between first pier 1, second pier 2 and third pier 3, and steel truss tie beam subassembly 6 has both provided sufficient rigidity, intensity and restraint ability, can guarantee that the pier has sufficient power consumption ability again, through the anchor node structural style of setting up anchor bar-anti-shear plate, adopts the thought of curved shear separation, and the atress mechanism is clear; the buckling-restrained brace component 7 can yield without bending when being pulled and pressed, so that a good hysteresis energy consumption effect is achieved, and the damage to a tie beam and a pier under strong shock is avoided; the buckling restrained brace damaged after the earthquake can be quickly replaced, and the requirement of quickly recovering the service function of the bridge after the earthquake is met; the components are prefabricated in factories and can be simply assembled on site, wet operations such as concrete pouring and the like are not needed, the construction is simple, and the construction period is short.

The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete examples, and the explanation of the above examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present description should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a three pier antidetonation reinforced structure of bridge with dual power consumption measure, includes first pier, second pier and the third pier that sets up side by side, first pier the second pier with the bottom of third pier all supports through the cushion cap, the common bearing bent cap in three's top, its characterized in that: steel truss tie beam assemblies are connected between the middle part of the first pier and the middle part of the second pier and between the middle part of the second pier and the middle part of the third pier;

2. The bridge three-column pier seismic strengthening structure with double energy consumption measures according to claim 1, which is characterized in that: the first pier, the second pier, the third pier and the bent cap are all of reinforced concrete structures.

3. The bridge three-column pier seismic strengthening structure with double energy consumption measures according to claim 1, which is characterized in that: the first pier, the second pier and the third pier are all internally provided with embedded components, and the embedded components are connected with the steel truss tie beam components through connecting plates.

4. The bridge three-column pier seismic strengthening structure with double energy consumption measures according to claim 3, wherein: the embedded assembly comprises an embedded plate, the embedded plate is connected with the pier through anchor bars, the side portion of the embedded plate is perpendicularly welded with an anti-shearing plate, the middle portion of the anti-shearing plate is perpendicularly welded with studs, and the embedded plate and the connecting plate are welded and fixed.

5. The anti-seismic reinforcing structure with the double energy dissipation measures for the three pier piers of the bridge as claimed in claim 4, wherein: the steel truss tie beam assembly comprises an upper chord and a lower chord which are arranged in parallel, web members are welded between the upper chord and the lower chord, and the upper chord and the lower chord are respectively welded and fixed with the corresponding connecting plates.

6. The bridge three-column pier seismic strengthening structure with double energy consumption measures according to claim 5, wherein: the upper chord and the lower chord are both made of T-shaped steel, and the web members are made of angle steel.

7. The bridge three-column pier seismic strengthening structure with double energy consumption measures according to claim 1, which is characterized in that: the buckling restrained brace subassembly includes the bracing piece, the both ends of bracing piece all are connected with the anchor slab, anchor slab and steel sheet welded fastening, the steel sheet passes through the bolt and is connected with the pier.