CN205329526U

CN205329526U - Pier is assembled to precast concrete

Info

Publication number: CN205329526U
Application number: CN201620050920.9U
Authority: CN
Inventors: 张正东
Original assignee: Individual
Current assignee: Ningbo University
Priority date: 2016-01-19
Filing date: 2016-01-19
Publication date: 2016-06-22
Anticipated expiration: 2026-01-19

Abstract

The utility model discloses a pier is assembled to precast concrete, characteristics are including middle pier and two limit piers that edge middle pier symmetry set up, the lower terminal surface of middle pier, be provided with fiber reinforcement mortar layer between the lower terminal surface of limit pier and the cushion cap respectively, the bent cap has been erect between limit pier and the middle pier, middle pier, limit pier and bent cap are concrete prefabricated part, seam crossing between limit pier and the bent cap, seam crossing between middle pier and the bent cap has all filled the fiber reinforcement mortar, the limit pier, it is fixed through the many horizontal through connections of power consumption reinforcing bar between middle pier and the bent cap, the advantage is that the remaining displacement under the horizontal loading such as the reducible earthquake of pier is assembled in this prefabrication, and consumes energy the reinforcing bar and provides additional power consumption ability for the prefabricated pier of assembling, and the displacement demand of pier under horizontal loading such as earthquake is prefabricatedly assembled with reducing to control, has improved the shock resistance, in addition, owing to set up through the structure of step, make the three receive the three -dimensional restraint between limit pier, bent cap and the middle pier three, avoided the bucking of prefabricated component under the axial pressure effect.

Description

A kind of concrete prefabricated assembled bridge pier

Technical field

This utility model relates to the constructing structure of bridge, particularly relates to a kind of concrete prefabricated assembled bridge pier。

Background technology

Traditional bridge structure adopts the construction method of poured in place concrete substantially, and this construction method time cycle is long, is affected by the factor such as weather, weather, and the noise produced, waste residue etc. cause the pollution of surrounding。In order to alleviate these problems, bridge adopts the form of construction work that precast concrete carries out assembly more and more to be applied, and wherein, precast assembly bridge pier belongs to a part for precast bridge component。

Owing to precast assembly bridge pier is formed by multiple splicing prefabricated components, time assembled, it is necessarily required to seam between each prefabricated components, at present, the seam between each prefabricated components of precast assembly bridge pier is generally adopted stem grafting seam, and seam face only has presstressed reinforcing steel and passes through, its energy dissipation capacity is relatively low, earthquake displacement demand is relatively big, causes that shock resistance is poor, it is easy to produce along with the displacement of structure to destroy。

Summary of the invention

Technical problem to be solved in the utility model is to provide that a kind of energy dissipation capacity is good, and displacement demand is little, the concrete prefabricated assembled bridge pier that shock resistance is good。

The technical scheme that the above-mentioned technical problem of this utility model solution adopts is: a kind of concrete prefabricated assembled bridge pier, including middle bridge pier and two along described middle bridge pier symmetrically arranged limit bridge pier, the lower surface of described middle bridge pier, it is respectively arranged with fiber-reinforced mortar layer between lower surface and the cushion cap of described limit bridge pier, between described limit bridge pier and described middle bridge pier, erection has bent cap, described middle bridge pier, described limit bridge pier and described bent cap are precast concrete, the described seam crossing between limit bridge pier and described bent cap, the described seam crossing between middle bridge pier and described bent cap is all perfused with fiber-reinforced mortar, described limit bridge pier, connection is run through by the many reinforcing bar levels that consume energy fixing between described middle bridge pier and described bent cap。

Described limit bridge pier, described middle bridge pier and described bent cap are respectively arranged with the reinforcing bar pipeline that many positions level one to one runs through, described reinforcing bar pipeline respectively with the side of described limit bridge pier, the side of described bent cap, described middle bridge pier side perpendicular, described power consumption reinforcing bar is fixing through described reinforcing bar pipeline and grouting。

Described reinforcing bar pipeline is grout pipe。

The erection face of described limit bridge pier is provided with two-stage step, the erection face of described middle bridge pier is provided with one-level step, and the erection face, both sides of described bent cap is provided with the one-level step matched respectively with the one-level step on the two-stage step on described limit bridge pier, described middle bridge pier。

Compared with prior art, the utility model has the advantages that this precast assembly bridge pier can reduce the residual displacement under the horizontal loads such as earthquake, and power consumption reinforcing bar is that precast assembly bridge pier provides additional energy dissipation capacity, control and reduce precast assembly bridge pier displacement demand under the horizontal loads such as earthquake, improve shock resistance；Additionally, due to set up by the structure of step between limit bridge pier, bent cap and middle bridge pier three, make three be subject to three-dimensional and retrain, it is to avoid prefabricated components flexings under axial compressive force effect。

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the front view of limit of the present utility model bridge pier；

Fig. 3 is the right view of Fig. 2；

Fig. 4 is the front view of bent cap of the present utility model；

Fig. 5 is the side view of Fig. 4；

Fig. 6 is the front view of middle bridge pier of the present utility model；

Fig. 7 is the side view of Fig. 6。

Detailed description of the invention

Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail。

As shown in the figure, a kind of concrete prefabricated assembled bridge pier, including middle bridge pier 1 and two edges middle bridge pier 1 symmetrically arranged limit bridge pier 2, the lower surface of middle bridge pier 1, it is respectively arranged with fiber-reinforced mortar layer 4 between lower surface and the cushion cap 3 of limit bridge pier 2, between limit bridge pier 2 and middle bridge pier 1, erection has bent cap 5, middle bridge pier 1, limit bridge pier 2 and bent cap 5 are precast concrete, the erection face of limit bridge pier 2 is provided with two-stage step 21, the erection face of middle bridge pier 1 is provided with one-level step 11, the erection face, both sides of bent cap 5 be provided with respectively with the two-stage step 21 on limit bridge pier 2, the one-level step 51 that one-level step 11 on middle bridge pier 1 matches, seam crossing between limit bridge pier 2 and bent cap 5, seam crossing between middle bridge pier 1 and bent cap 5 is all perfused with fiber-reinforced mortar 6, limit bridge pier 2, middle bridge pier 1 and bent cap 5 are respectively arranged with the grout pipe 7 that many positions level one to one runs through, grout pipe 7 respectively with the side of limit bridge pier 2, the side of bent cap 5, the side of middle bridge pier 1 is perpendicular, power consumption reinforcing bar 8 traverse grout pipe 7 is by limit bridge pier 2, middle bridge pier 1 and bent cap 5 connect and are in the milk fixing。

In above-described embodiment, the assembling process of this precast assembly bridge pier is: prefabricated middle bridge pier 1, two limit bridge piers 2 and two bent caps 5, and to middle bridge pier 1, limit bridge pier 2 and bent cap 5 are inflated reserved grout pipe 7, maintenance is transported to bridge construction scene and carries out assembly after terminating, first centre bridge pier 1 and two limit bridge piers 2 are separately fixed on the corresponding position of cushion cap 3, then two bent caps 5 are respectively erected on limit bridge pier 2 and middle bridge pier 1, post stretching is adopted to bury power consumption reinforcing bar 8 in grout pipe 7, and grout pipe 7 is in the milk, seam crossing between limit bridge pier 2 and bent cap 5, seam crossing perfusion fiber-reinforced mortar 6 between middle bridge pier 1 and bent cap 5, complete the installation of precast assembly bridge pier。

Claims

1. a concrete prefabricated assembled bridge pier, it is characterized in that including middle bridge pier and two along described middle bridge pier symmetrically arranged limit bridge pier, the lower surface of described middle bridge pier, it is respectively arranged with fiber-reinforced mortar layer between lower surface and the cushion cap of described limit bridge pier, between described limit bridge pier and described middle bridge pier, erection has bent cap, described middle bridge pier, described limit bridge pier and described bent cap are precast concrete, the described seam crossing between limit bridge pier and described bent cap, the described seam crossing between middle bridge pier and described bent cap is all perfused with fiber-reinforced mortar, described limit bridge pier, connection is run through by the many reinforcing bar levels that consume energy fixing between described middle bridge pier and described bent cap。

2. a kind of concrete prefabricated assembled bridge pier as claimed in claim 1, it is characterized in that described limit bridge pier, described middle bridge pier and described bent cap are respectively arranged with the reinforcing bar pipeline that many positions level one to one runs through, described reinforcing bar pipeline respectively with the side of described limit bridge pier, the side of described bent cap, described middle bridge pier side perpendicular, described power consumption reinforcing bar is fixing through described reinforcing bar pipeline and grouting。

3. a kind of concrete prefabricated assembled bridge pier as claimed in claim 2, it is characterised in that described reinforcing bar pipeline is grout pipe。

4. a kind of concrete prefabricated assembled bridge pier as claimed in claim 1, it is characterized in that the erection face of described limit bridge pier is provided with two-stage step, the erection face of described middle bridge pier is provided with one-level step, and the erection face, both sides of described bent cap is provided with the one-level step matched respectively with the one-level step on the two-stage step on described limit bridge pier, described middle bridge pier。