CN201942994U - Bridge bearing pad - Google Patents

Bridge bearing pad Download PDF

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Publication number
CN201942994U
CN201942994U CN2010206936633U CN201020693663U CN201942994U CN 201942994 U CN201942994 U CN 201942994U CN 2010206936633 U CN2010206936633 U CN 2010206936633U CN 201020693663 U CN201020693663 U CN 201020693663U CN 201942994 U CN201942994 U CN 201942994U
Authority
CN
China
Prior art keywords
cushion block
bridge
bridge pad
pad
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010206936633U
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Chinese (zh)
Inventor
马军伟
朱敏
彭丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Urban Construction Design Research Institute Co ltd
Original Assignee
Shanghai Urban Construction Design Research Institute Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Urban Construction Design Research Institute Co ltd filed Critical Shanghai Urban Construction Design Research Institute Co ltd
Priority to CN2010206936633U priority Critical patent/CN201942994U/en
Application granted granted Critical
Publication of CN201942994U publication Critical patent/CN201942994U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a bridge bearing pad, which comprises a lower pad (2) and an upper pad (3), wherein the lower pad and the upper pad are sequentially arranged on a bridge pier (7). Cost for modifying the bridge bearing pad during jacking modification for bridges is saved effectively and implementation cost is reduced. Meanwhile, weight of the pad is reduced and the bridge bearing pad has lower effect on old structures.

Description

A kind of bridge pad cushion block
Technical field
The utility model relates to the bridge facility technical field, relates in particular to a kind of bridge pad cushion block.
Background technology
At present, along with the continuous quickening of urbanization process.Original road road network can not satisfy transport need, the corresponding improvement project that also causes more and more elevated bridges.In general improvement project, because newly-designed road alignment and intrinsic difference, except changing bigger employing pier column transformation, part needs by the cradle under the superstructure is transformed.
Cushion block is generally cast-in-place concrete structure, and upper and lower cushion block stretches into column by reinforcing bar respectively or the enough anchorage lengths of case beam are connected with structure.At present, adjust in the improvement project of bridge floor absolute altitude, the general mode of setting up the steel cushion block or building epoxy resin mortar that adopts of adjustment to the bearing cushion block, but adjust the situation of size greater than 300mm for height of support, adopt steel cushion block steel using amount bigger, not only increased material usage and increased from heavy load, very high and intensity is difficult to control to construction requirement and adopt epoxy resin mortar.
Therefore, those skilled in the art is devoted to develop a kind of from heavy and light, the simple bridge pad cushion block of construction.
The utility model content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provides a kind of from heavy and light, the simple bridge pad cushion block of construction.
For achieving the above object, the utility model provides a kind of bridge pad cushion block, comprises the lower cushion block and the last cushion block that place successively on the bridge pier.
Preferable, described lower cushion block is cast-in-place steel fiber reinforced concrete structure.
Preferable, described bridge pier is provided with the first bearing cushion block; Described lower cushion block is coated on the outside of the described first bearing cushion block.
Preferable, described lower cushion block is outside equipped with steel frame; Steel fibrous concrete is cast in the space that described steel frame surrounds.
Preferable, be provided with the reinforcing bar cover in the described lower cushion block.
Preferable, described reinforcing bar cover is set to well shape structure.
Preferable, described reinforcing bar cover comprises three layers that be arranged in parallel up and down.
Preferable, described upward cushion block is a wedge structure.
Preferable, described lower cushion block and described going up between the cushion block are provided with bearing.
The beneficial effects of the utility model are: effectively saved the improvement expenses of bridge cushion block in lifting reconstruction, reduced implementation cost; Alleviated cushion block weight simultaneously, littler to the influence of old structure.
Be described further below with reference to the technique effect of accompanying drawing, to understand the purpose of this utility model, feature and effect fully design of the present utility model, concrete structure and generation.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is a structural representation of going up cushion block among Fig. 1;
The structural representation of Fig. 3 the utility model embodiment 2;
Fig. 4 is the structural representation of the utility model embodiment 3;
Fig. 5 is the A-A sectional view of Fig. 3;
Fig. 6 is the structural representation of the utility model embodiment 4.
The specific embodiment
Embodiment 1: as depicted in figs. 1 and 2, a kind of bridge pad cushion block comprises the lower cushion block 2 and the last cushion block 3 that place successively on the bridge pier 7.Lower cushion block 2 is cast-in-place steel fiber reinforced concrete structure, and last cushion block 3 is a wedge-shaped steel plate.Bridge pier 7 is provided with the first bearing cushion block 1, promptly former bearing cushion block, and lower cushion block 2 is coated on the outside of the first bearing cushion block 1.
Constructing in accordance with the following methods in the scene: 1) old bridge superstructure 8 is jack-uped; 2) at the cast-in-place steel fibrous concrete in the first bearing cushion block, 1 place to form lower cushion block 2; 3) paste cushion block 3 under the old bridge superstructure; 4) treat that concrete strength reaches the beam that falls after 100% intensity.
Because the lower cushion block of newly establishing 2 is enclosed within on the former bearing cushion block 1, so the horizontal shear resistance of bridge pad cushion block is not less than former bearing cushion block.And the bridge pad cushion block need not to cut former cushion block, is the reinforcement to former cushion block, detects proof through the scene, and this cushion block easy construction has reduced rolled steel dosage, and intensity can guarantee.
Embodiment 2: as shown in Figure 3, the structure of present embodiment is substantially the same manner as Example 1, and different is: be provided with reinforcing bar cover 5 in the lower cushion block 2.Other structures of present embodiment are identical with embodiment 1.
Because reinforcing bar overlaps 5 setting, further strengthened the intensity of lower cushion block 2.
Embodiment 3: as shown in Figure 4 and Figure 5, the structure of present embodiment is substantially the same manner as Example 1, and different is: lower cushion block 2 is outside equipped with steel frame 4, and steel fibrous concrete is cast in the space that steel frame 4 surrounded.And be provided with three layers of well shape reinforcing bar cover 5 that be arranged in parallel up and down in the lower cushion block 2.Other structures of present embodiment are identical with embodiment 1.
Constructing in accordance with the following methods in the scene: after 1) old bridge superstructure 8 being jack-uped, lays the steel frame 4 that has welded around old bridge cushion block 1; 2) welded reinforcement cover 5 in steel frame 4; 3) cast steel fibrous concrete in steel frame 4; 4) paste wedge-shaped steel plate 3 under the old bridge superstructure; 5) treat the beam that falls after concrete strength reaches 100%.
During cast, 4 pairs of constraints that form the steel fibrous concrete of lower cushion block 2 of steel frame can increase its poisson's ratio, thereby guarantee its compressive strength, have the effect of template simultaneously concurrently, and it is more convenient to construct.
Embodiment 4: as shown in Figure 6, the structure and the job practices of present embodiment are substantially the same manner as Example 3, and different is to be provided with bearing between lower cushion block 2 and the last cushion block 3.During construction, treat that concrete strength reaches 100% intensity after, put bearing earlier, beam again falls.Other structures and the job practices of present embodiment are identical with embodiment 3.
Because the setting of bearing can make the volume of cushion block littler, thereby further reduce the deadweight of bridge pad cushion block.
More than describe preferred embodiment of the present utility model in detail.The ordinary skill that should be appreciated that this area need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.

Claims (9)

1. a bridge pad cushion block is characterized in that: comprise the lower cushion block (2) and the last cushion block (3) that place successively on the bridge pier (7).
2. bridge pad cushion block as claimed in claim 1 is characterized in that: described lower cushion block (2) is cast-in-place steel fiber reinforced concrete structure.
3. bridge pad cushion block as claimed in claim 2 is characterized in that: described bridge pier (7) is provided with the first bearing cushion block (1); Described lower cushion block (2) is coated on the outside of the described first bearing cushion block (1).
4. as claim 2 or 3 described bridge pad cushion blocks, it is characterized in that: described lower cushion block (2) is outside equipped with steel frame (4); Steel fibrous concrete is cast in the space that described steel frame (4) surrounded.
5. as claim 2 or 3 described bridge pad cushion blocks, it is characterized in that: be provided with reinforcing bar cover (5) in the described lower cushion block (2).
6. bridge pad cushion block as claimed in claim 5 is characterized in that: described reinforcing bar cover (5) is set to well shape structure.
7. bridge pad cushion block as claimed in claim 5 is characterized in that: described reinforcing bar cover (5) comprises three layers that be arranged in parallel up and down.
8. bridge pad cushion block as claimed in claim 1 is characterized in that: described upward cushion block (3) is a wedge structure.
9. as claim 1 or 8 described bridge pad cushion blocks, it is characterized in that: described lower cushion block (2) and described going up between the cushion block (3) are provided with bearing (6).
CN2010206936633U 2010-12-30 2010-12-30 Bridge bearing pad Expired - Fee Related CN201942994U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206936633U CN201942994U (en) 2010-12-30 2010-12-30 Bridge bearing pad

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206936633U CN201942994U (en) 2010-12-30 2010-12-30 Bridge bearing pad

Publications (1)

Publication Number Publication Date
CN201942994U true CN201942994U (en) 2011-08-24

Family

ID=44470342

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206936633U Expired - Fee Related CN201942994U (en) 2010-12-30 2010-12-30 Bridge bearing pad

Country Status (1)

Country Link
CN (1) CN201942994U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094387A (en) * 2010-12-30 2011-06-15 上海市城市建设设计研究院 Cushion block for bridge bearing
CN103194985A (en) * 2013-04-28 2013-07-10 上海市城市建设设计研究总院 Cushion block assembly structure for jacking structure and jacking implementation method of cushion block assembly structure
CN103498423A (en) * 2013-09-26 2014-01-08 宋功业 Rectangular concrete cushion block for long-span steel structure bridge incremental launching construction
CN103498422A (en) * 2013-09-26 2014-01-08 宋功业 Wedge-shaped concrete cushion block for long-span steel structure bridge incremental launching construction
CN109024236A (en) * 2018-08-24 2018-12-18 中国建筑局(集团)有限公司 A kind of steel trestle and its construction method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094387A (en) * 2010-12-30 2011-06-15 上海市城市建设设计研究院 Cushion block for bridge bearing
CN103194985A (en) * 2013-04-28 2013-07-10 上海市城市建设设计研究总院 Cushion block assembly structure for jacking structure and jacking implementation method of cushion block assembly structure
CN103194985B (en) * 2013-04-28 2015-09-23 上海市城市建设设计研究总院 Works jacking cushion block splicing structure and jacking implementation method thereof
CN103498423A (en) * 2013-09-26 2014-01-08 宋功业 Rectangular concrete cushion block for long-span steel structure bridge incremental launching construction
CN103498422A (en) * 2013-09-26 2014-01-08 宋功业 Wedge-shaped concrete cushion block for long-span steel structure bridge incremental launching construction
CN109024236A (en) * 2018-08-24 2018-12-18 中国建筑局(集团)有限公司 A kind of steel trestle and its construction method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110824

Termination date: 20161230

CF01 Termination of patent right due to non-payment of annual fee