CN202755320U - Support seat cushion block special for jacking and heightening of bridge - Google Patents
Support seat cushion block special for jacking and heightening of bridge Download PDFInfo
- Publication number
- CN202755320U CN202755320U CN2012204396803U CN201220439680U CN202755320U CN 202755320 U CN202755320 U CN 202755320U CN 2012204396803 U CN2012204396803 U CN 2012204396803U CN 201220439680 U CN201220439680 U CN 201220439680U CN 202755320 U CN202755320 U CN 202755320U
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- CN
- China
- Prior art keywords
- cushion block
- concrete
- support seat
- reinforcing sleeve
- seat cushion
- 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 - Lifetime
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Abstract
The utility model discloses a support seat cushion block special for jacking and heightening of a bridge. The support seat cushion block comprises a concrete cushion block, a connection reinforcing sleeve is connected onto the outer layer of the concrete cushion block in sleeve mode, and an outer connection rod is arranged on the outer wall of the reinforcing sleeve. Due to the fact that the reinforcing sleeve is sleeved on the outer layer of the concrete cushion block, the support seat cushion block increases pressure bearing capability of the concrete cushion block on one hand and protects the concrete cushion block on the other hand. When the concrete cushion block bears pressure, the support seat cushion block avoids crushing of the edge of the concrete or cracking of the cushion block. Simultaneously, the outer connection rod is arranged on the outer wall of the reinforcing sleeve to enable a plurality of special support seat cushion block units to be connected into a whole. The support seat cushion block improves bearing capability and is convenient to process and construct.
Description
Technical field
The utility model belongs to the bracing or strutting arrangement in the bridge strengthening work progress, is specifically related to a kind of bridge jacking and increases the special carrier cushion block.
Background technology
Increasing in the technical field of construction at existing bridge jacking, all is to reach the purpose that bridge is increased by increasing bearing cushion block height to improve the bearing absolute altitude.At present, after bridge was by jack-up, the method that tradition increases bearing cushion block height was the padding steel plate, add precast concrete block, cast-in-situ concrete cushion block.The method of padding steel plate is applicable to top lifting height and increases construction less than the bridge of 5cm, and the steel consumption amount is large, and the requirement for anticorrosion of steel plate is high, and material cost is higher; Precast concrete block is in prefabricated process, because form removable very easily causes concrete block to destroy, it edge crushing of concrete or cushion block splitting can occur when pressure-bearing phenomenon affects bearing stability, also is not suitable for large-tonnage or increases than the bridge of high height lifting height; Cast-in-situ concrete cushion block method is only applicable to the higher bridge of top lifting height and increases construction, because at the scene construction, the cast-in-situ concrete cushion block all can not be well controlled aspect intensity, planeness and the thickness, and the concrete curing cycle is long, increases the construction period.
Summary of the invention
The purpose of this utility model is to provide a kind of cost low, and the bridge jacking that bearing strength is high is increased the special carrier cushion block, to address the above problem.
The technical solution of the utility model is: bridge jacking is increased the special carrier cushion block, and it comprises concrete pad, the outer sheathed connection reinforcing sleeve of described concrete pad, and the cover outer wall of reinforcing sleeve is provided with outer tie rod.
The utility model increases the concrete pad bearing capacity on the one hand by at the outer sheathed reinforcing sleeve of concrete pad, on the other hand concrete pad is played a protective role; Concrete pad can be avoided the generation of the phenomenon of edge crushing of concrete or cushion block splitting when pressure-bearing.The cover outer wall of reinforcing sleeve is provided with outer tie rod simultaneously, can realize that a plurality of special carrier cushion blocks unit connects into integral body, improves heavy supporting capacity, and is convenient to processing and construction.
Between described reinforcing sleeve inwall and the concrete pad inside connecting rod or contiguous block are set.
Described inside connecting rod connects into integral body with concrete pad and reinforcing sleeve, can avoid the relative sliding between concrete pad and the reinforcing sleeve.
Described reinforcing sleeve inwall and concrete mats are contour.Constructability is installed.
Reinforcing sleeve adopts steel bushing.Cost is low, is convenient to produce.
The utility model structure is convenient to the carrying of bearing cushion block, can also the bearing cushion block be interconnected the stability of Effective Raise cushion block by steel such as welding angle steel.It is simple in structure, and cost is low, long service life.
Description of drawings
Fig. 1 the utility model bearing cushion block schematic diagram.
Connection diagram between a plurality of bearing cushion blocks of Fig. 2 the utility model.
The specific embodiment
As shown in Figure 1, steel bushing 1(can adopt seamless steel pipe especially) interior sheathed concrete mats 2, steel bushing 1 inwall is connected with inside connecting rod 3 (dotted portion among the figure), and inside connecting rod 3 can adopt reinforcing bar or rod iron.Inside connecting rod 3 is formed in the concrete mats 2 in advance.So that concrete mats 2 connects into integral body with steel bushing 1.Also can realize being prefabricated into integral body with concrete mats 2 at the contiguous block that steel bushing 1 inwall arranges a plurality of protrusions at or interval.Steel bushing 1 outer wall arranges outer tie rod 4 according to construction requirement, and outer tie rod 4 can arrange many that are mutual vertical and/or coaxial.Outer tie rod 4 adopts the reinforcing bar of many coaxial settings in the present embodiment.
As shown in Figure 2, a plurality of bearing cushion blocks are as shown in Figure 1 connected into integral body, between the outer tie rod 4.1,4.2 of two bearing cushion blocks, be welded to connect angle steel 5 or steel pipe, so that a plurality of bearing cushion block connects into integral body.
The preparation of bearing cushion block: isometrical up and down seamless steel pipe is increased the length that the design load intercepting adapts according to actual bridge, a radially reinforcing bar is welded at the inwall waist place of seamless steel pipe, the outer wall waist place of seamless steel pipe is symmetrically welded two horizontal reinforcements, finishes preparation.In seamless steel pipe, build strong concrete and seamless steel pipe is contour, as the pressure-bearing main body.
Bearing cushion block manufacture craft is simple, and the cost of material is low, can be prefabricated in a large number on request in advance, shorten the construction period.Prefabricated planeness, the thickness that also can control cushion block outside the venue to concrete anchor ear effect, plays protection and enhancing to concrete by seamless steel pipe, can be used for the large-tonnage bridge and increases.Outer tie rod not only is convenient to the carrying of bearing cushion block, can also the bearing cushion block be interconnected by steel such as welding angle steel, and inner radially reinforcing bar strengthens seamless steel pipe and concrete combination, the stability of Effective Raise cushion block.
Claims (4)
1. a bridge jacking is increased the special carrier cushion block, and it comprises concrete pad, it is characterized in that the outer sheathed connection reinforcing sleeve of described concrete pad, and the cover outer wall of reinforcing sleeve is provided with outer tie rod.
2. bridge jacking is increased the special carrier cushion block as claimed in claim 1, it is characterized in that between described reinforcing sleeve inwall and the concrete pad inside connecting rod or contiguous block being set.
3. bridge jacking is increased the special carrier cushion block as claimed in claim 1 or 2, it is characterized in that reinforcing sleeve inwall and concrete mats are contour.
4. bridge jacking is increased the special carrier cushion block as claimed in claim 1 or 2, it is characterized in that reinforcing sleeve adopts steel bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204396803U CN202755320U (en) | 2012-08-31 | 2012-08-31 | Support seat cushion block special for jacking and heightening of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204396803U CN202755320U (en) | 2012-08-31 | 2012-08-31 | Support seat cushion block special for jacking and heightening of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755320U true CN202755320U (en) | 2013-02-27 |
Family
ID=47734509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204396803U Expired - Lifetime CN202755320U (en) | 2012-08-31 | 2012-08-31 | Support seat cushion block special for jacking and heightening of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202755320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726450A (en) * | 2013-12-26 | 2014-04-16 | 武汉二航路桥特种工程有限责任公司 | Simply-supported slab bridge jack-up method and height-adjustable combined cushion structure applied therein |
-
2012
- 2012-08-31 CN CN2012204396803U patent/CN202755320U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726450A (en) * | 2013-12-26 | 2014-04-16 | 武汉二航路桥特种工程有限责任公司 | Simply-supported slab bridge jack-up method and height-adjustable combined cushion structure applied therein |
| CN103726450B (en) * | 2013-12-26 | 2016-04-20 | 武汉二航路桥特种工程有限责任公司 | Supported Slab Bridge rises method and adjustable height combination mat stone structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |