CN107761580A - A kind of old pier stud rebuilding construction scheme of bridge - Google Patents
A kind of old pier stud rebuilding construction scheme of bridge Download PDFInfo
- Publication number
- CN107761580A CN107761580A CN201710954457.XA CN201710954457A CN107761580A CN 107761580 A CN107761580 A CN 107761580A CN 201710954457 A CN201710954457 A CN 201710954457A CN 107761580 A CN107761580 A CN 107761580A
- Authority
- CN
- China
- Prior art keywords
- pier stud
- bridge
- concrete
- old
- construction scheme
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of old pier stud rebuilding construction scheme of bridge, the old pier stud rebuilding construction scheme of the bridge, using detection, pre-cleaning, divisional reconstruction, build optimization external structure again, and by multiple skeleton structure strengthen former pier stud structure and former pier stud in external structure repair structure by Force system；So as to reach the structural strength and service life of pier stud significantly can be repaired or improve without removing original pier stud completely；Work progress Bridge can be kept supporting well all the time simultaneously, and whole work progress Bridge is barely affected, and construction technology is relatively simple, speed of application is fast, construction quality is high.
Description
Technical field
The present invention relates to bridge construction field, more particularly to a kind of old pier stud rebuilding construction scheme of bridge.
Background technology
Subway light rail engineering can not meet growing passenger flow needs because of preconsolidation stress capacity in modern city, often need
Existing light rail viaduct is transformed.Because rebuilding construction can not influence the overhead use of existing light rail for a long time, generally require
Rebuilding construction is completed within the limited time.Generally before construction reformation construction, construction department can only be by subway ownership portion
The mode of door " main points " is constructed, and it is relatively short generally to put the time, is completed new beam in a short time and is substituted old beam and rail
Road laying is very big with the needs difficulty of construction that meets to be open to traffic.And urban rail transit engineering to the required precision of engineering construction also very
It is high.It is very big that rebuilding construction difficulty is thus completed in a short time.
In rebuilding construction, the transformation of existing bridge pier is to change a key link of engineering method construction.Domestic city is light at present
The existing bridge pier of rail overpass is transformed there is presently no similar example, only typically uses jack-block in the old bridge pier transformation of railway engineering,
Existing bridge is jacked by jack, then using cut off or spreading by the way of transformed.This method construction it is time-consuming it is long, take
With huge, complicated construction technique, the more difficult control of construction quality, and construction precision is relatively low, is unsuitable for wanting that seeking time is short, precision
The improvement project construction of the old pier stud of high city rail.
The content of the invention
It is an object of the invention to provide a kind of old pier stud rebuilding construction scheme of bridge, which solves bridge pier transformation or removes weight
Make complicated construction technique, construction quality problem more rambunctious.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of old pier stud rebuilding construction scheme of bridge, comprises the following steps：
Step S1 is measured, and settlement observation point is laid on each pier stud, and stable datum mark is selected according to field conditions；Root
According to settling data, preferentially to there is the larger pier stud of sedimentation value to carry out rebuilding construction.
Step S2 builds cofferdam isolation pool around pier stud；
Surface hollow caused by thing and corrosion is paid to remove surface in step S3 scraped finish pier stud surfaces；
Step S4 is observed and is detected pier stud with fracture detecting instrument, and is divided into patch area from low to high according to the extent of damage point, is added
Gu Qu and reconstruction area；Wherein patch area is repaired with concrete, and stabilization zone need to be added with steel plate or other kinds of template
Gu while it is subject to concrete repair；Reconstruction area needs to be blocked taking-up, and is subject to shoulder pad as interim branch in the position blocked
Support；
Step S5 is repaired or amendment pier stud surface, and logical coating concrete then uses concrete curing to reach surfacing
Agent carries out integral spray to surface；
Step S6 is socketed anchor ear on the outer wall of pier stud and is clamped, and reinforcing bar forms netted knot to pier stud with anchor ear on cloth vertically
Structure；
Step S7 is established around pier stud and is turned over rising mould plate, and framework of steel reinforcement is built between rising mould plate and pier stud turning over；
Step S8 fills concrete turning between rising mould plate and pier stud, repeat step S6- steps S8 is until transformation pier stud completely.
Using such scheme, the pier stud that wherein extent of damage is relatively large is determined in a manner of detection first, then to it
Construction, and in work progress, part-structure has even been cut off, also it is subject to cushion block compensation support, and use on this basis
On pier stud suitable position installation anchor ear and be allowed to pier stud clamp caused by maximum static friction force, to overcome the weight of bent cap
Amount；To ensure that pier stud can have enough bearing capacitys all the time；Next pier stud surface is modified can be by consequent effects structure
The factor of stability is rejected, to ensure that the pier stud for subsequently adding revised bridge pier and script will not produce the situation of layering；And
Thereafter concrete loads the also re-optimization impact resistance of pier stud and the structural strength of entirety；In summary, entirely
During, construction technology is relatively simple, without remove completely original pier stud significantly can repair or improve pier stud structure it is strong
Degree and service life.
More preferably：Settlement observation point described in step S1 is laid on the pier stud root or binder of former bridge,
Such as it is laid on pier stud, point position is apart from high about 30cm to 50cm in ground or so；And using impact drill punching embedded bar, per pier stud
It is embedded a little to pierce concrete and be more than 10 centimetres of depth, fixed with high grade mortar, expose 3 cms, meet to place level
Chi requirement.
Using such scheme, comparatively the air-flow of this position and air-flow conversion are smaller, i.e., to the precision of detection
Influence is smaller, and slightly above ground also allows for avoiding the obstacle on ground in height；On the other hand this height substantially with total powerstation
Height maintain an equal level, accurate measurement precision can be ensured to the full extent.
More preferably：Cofferdam in step S2 includes outer layer and internal layer, is area of drawing water between outer layer and internal layer, and
Waterproof construction in inner-layer cloth.
Using such scheme, due to bridge be present above pier stud, cofferdam can not be directly inserted in modular form, and this
The also improper river of regional area change to；The general module using radial separation formula assembles through row, that is to say, that it wants to reach
Can be very high to very high water resistance cost, two-layer equation is used, the draining in area as long as holding is drawn water, just internal layer can relatively be held
Easy takes waterproof measure, so as to reach good water proof effect.
More preferably：Anchor ear described in step S6 uses steel plate of the thickness for 10mm~20mm.
Using such scheme, anchor ear must be closely connected with pier stud when being arranged on pier stud, and this is a basic demand.Due to pier stud
Section can not possibly absolute circle, the out-of-roundness of each pier stud be it is different, it is also thousand poor even if the different cross section of same pier stud its out-of-roundness
Ten thousand is other.Therefore, to adapt to the pier shaft of various out-of-roundness, the hoop body of anchor ear, which preferably uses, does not set the flexible band body that ring is put more energy into, 10mm
~20mm steel plate can preferably ensure suppleness and the structural strength of itself.
More preferably：The outer cover of the anchor ear in step S6 is provided with the pressure that anchor ear is pressed in pier stud surface
Plate, the pressing plate are fixed on pier stud in a manner of bolt or back of the body bolt are fixed.
Using such scheme, the connecting bolt on anchor ear, its pretension allows for ensureing the friction between anchor ear and pier stud
Power can reliably transmit load.Therefore, sufficient amount of bolt ensures pretension.If it is single from pressing plate and hoop body by
Power considers that the bolt on pressing plate is preferably arranged to a row on vertical.But so, binding round height degree certainly will be larger.Especially
Be when bent cap load is very big, it is necessary to bolt it is more, the height of anchor ear will be very big, will increase the input of anchor ear, and too high embrace
Hoop can also make troubles to construction.Therefore, as long as using the enough pressing plates of thickness and setting necessary stiffener for it, you can gram
Take this problem and the bolt on pressing plate is generally arranged to two rows on vertical.
More preferably：Pressing plate in step S6 uses steel plate of the thickness for 24mm~30mm.
Using such scheme, because anchor ear pressing plate is the component that directly bears bolt tension force, there is enough intensity and just
Degree, to use steel plate of the thickness as 24mm~30mm to be advisable
More preferably：Spray is carried out in a manner of gunite concrete after the completion of step S6 on pier stud surface to build.
Using such scheme, the mode of gunite concrete can be in advance between the reinforcing bar and pier stud on anchor ear, pier stud
Gap is filled, and is poured space so as to eliminate to the full extent, is ensured good structural behaviour.
More preferably：Concrete in step S8, which fills to hold in both hands using plug-in type vibrating, to be vibrated, and should be divided when vibrating
Layer is carried out, and thickness is 30-40cm and one-time continuous placing；Strict control concrete slump, suitably vibrates, with concrete no longer
Sink, surface starts bleeding, untill occurring without bubble.
Using such scheme, by placing during, the air included in water or in this mud is discharged, is reduced or avoided
Producing bubbles inside after concrete setting；It ensure that the structural strength after pouring.
More preferably：Shoulder pad described in step S4 is steelframe, step S8 fill to after shoulder pad, by shoulder pad
Together fill in portion.
Using such scheme, steelframe can provide preferable support, and construction to it is last when can be used as steel
The direct fill concrete of muscle structure, without removing.
In summary, the invention has the advantages that：
In whole process, construction technology is relatively simple, speed of application is fast, construction quality is high, without removing original pier stud completely i.e.
It significantly can repair or improve the structural strength and service life of pier stud；And it is being that work progress Bridge can be kept very all the time
Good support, whole work progress Bridge are barely affected.
Brief description of the drawings
Fig. 1 is the construction process figure of embodiment 1；
Fig. 2 is the structure chart of the hoop component of embodiment 1.
In figure, 1, anchor ear；2nd, pressing plate；3rd, reinforcing bar.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the protection domain of invention by Patent Law.
A kind of old pier stud rebuilding construction scheme of bridge, as depicted in figs. 1 and 2, comprises the following steps：
Step S1 is measured, and settlement observation point is laid on each pier stud, and stable datum mark is selected according to field conditions；Root
According to settling data, preferentially to there is the larger pier stud of sedimentation value to carry out rebuilding construction.Wherein settlement observation point is laid in former bridge
On pier stud root or binder, such as it is laid on pier stud, puts position apart from high about 30cm to 50cm in ground or so.Punched using impact drill
Embedded bar.Per pier stud and binder is a little embedded, pierces concrete and is more than 10 centimetres of depth, is fixed with high grade mortar, expose 3
Cm, meet to place levelling rod requirement.Survey tool is total powerstation.
Step S2 builds cofferdam isolation pool around pier stud；Wherein, cofferdam includes outer layer and internal layer, using radial direction point
Module from formula assembles through row, is draw water area, and the waterproof construction in inner-layer cloth between outer layer and internal layer.Using two-layer equation, only
Keep drawing water the draining in area, just can be so that internal layer easier takes waterproof measure, so as to reach good water proof effect.
Surface hollow caused by thing and corrosion is paid to remove surface in step S3 scraped finish pier stud surfaces；
Step S4 is observed and is detected pier stud with fracture detecting instrument, and is divided into patch area from low to high according to the extent of damage point, is reinforced
Area and reconstruction area；Wherein patch area is repaired with concrete, and stabilization zone need to be reinforced with steel plate or other kinds of template,
It is subject to concrete repair simultaneously；Reconstruction area needs to be blocked taking-up, and is subject to shoulder pad as temporary support in the position blocked；
Shoulder pad is mainly steelframe.
Step S5 is repaired or amendment pier stud surface, and logical coating concrete is then supported with reaching surfacing with concrete
Protect agent and integral spray is carried out to surface；
Step S6 is socketed anchor ear 1 on the outer wall of pier stud and is clamped, and anchor ear 1 uses steel plate of the thickness for 10mm~20mm, embraces
Hoop 1 must be closely connected with pier stud when being arranged on pier stud.Reinforcing bar 3 forms network structure, reinforcing bar 3 to pier stud with anchor ear 1 on cloth vertically
Fixed in a welding manner with anchor ear 1.The outer cover of anchor ear 1 is provided with the pressing plate 2 that anchor ear 1 is pressed in pier stud surface, the pressure
Plate 2 is fixed on pier stud in a manner of bolt or back of the body bolt are fixed.Pressing plate 2 uses steel plate of the thickness for 24mm~30mm.Install
Spray is carried out in a manner of gunite concrete after on pier stud surface to build.
Step S7 is established around pier stud and is turned over rising mould plate, and framework of steel reinforcement is built between rising mould plate and pier stud turning over；
Step S8 fills concrete turning between rising mould plate and pier stud, repeat step S6- steps S8 is until transformation pier stud completely.
Concrete, which fills to hold in both hands using plug-in type vibrating, to be vibrated, and progress should be layered when vibrating, thickness is 30-40cm and one-time continuous fills
Build；Strict control concrete slump, is suitably vibrated, is no longer sunk with concrete, surface starts bleeding, occurs without bubble and is
Only.
Claims (9)
1. a kind of old pier stud rebuilding construction scheme of bridge, it is characterized in that：Comprise the following steps：
Step S1 is measured, and settlement observation point is laid on each pier stud, and stable datum mark is selected according to field conditions；Root
According to settling data, preferentially to there is the larger pier stud of sedimentation value to carry out rebuilding construction；
Step S2 builds cofferdam isolation pool around pier stud；
Surface hollow caused by thing and corrosion is paid to remove surface in step S3 scraped finish pier stud surfaces；
Step S4 is observed and is detected pier stud with fracture detecting instrument, and is divided into patch area from low to high according to the extent of damage point, is reinforced
Area and reconstruction area；Wherein patch area is repaired with concrete, and stabilization zone need to be reinforced with steel plate or other kinds of template,
It is subject to concrete repair simultaneously；Reconstruction area needs to be blocked taking-up, and is subject to shoulder pad as temporary support in the position blocked；
Step S5 is repaired or amendment pier stud surface, and logical coating concrete then uses curing compound to reach surfacing
Integral spray is carried out to surface；
Step S6 is socketed anchor ear (1) on the outer wall of pier stud and is clamped, pier stud reinforcing bar on cloth vertically（3）With anchor ear (1) shape
Reticulate structure；
Step S7 is established around pier stud and is turned over rising mould plate, and framework of steel reinforcement is built between rising mould plate and pier stud turning over；
Step S8 fills concrete turning between rising mould plate and pier stud, repeat step S6- steps S8 is until transformation pier stud completely.
2. the old pier stud rebuilding construction scheme of a kind of bridge according to claim 1, it is characterized in that：It is heavy described in step S1
Drop observation station be laid on the pier stud root or binder of former bridge, be such as laid on pier stud, point position apart from the high about 30cm in ground extremely
50cm or so, embedded bar is punched using impact drill；Per pier stud and binder is a little embedded, pierces concrete and is more than 10 centimetres of depths
Degree, is fixed with high grade mortar, exposes 3 cms, meets to place levelling rod requirement.
3. the old pier stud rebuilding construction scheme of a kind of bridge according to claim 1, it is characterized in that：Cofferdam in step S2
It is draw water area, and the waterproof construction in inner-layer cloth between outer layer and internal layer including outer layer and internal layer.
4. the old pier stud rebuilding construction scheme of a kind of bridge according to claim 1, it is characterized in that：Embracing described in step S6
Hoop (1) uses steel plate of the thickness for 10mm~20mm.
5. the old pier stud rebuilding construction scheme of a kind of bridge according to claim 4, it is characterized in that：Described armful in step S6
The outer cover of hoop (1) is provided with the pressing plate (2) that anchor ear (1) is pressed in pier stud surface, and the pressing plate (2) is fixed with bolt or back of the body bolt
Mode be fixed on pier stud.
6. the old pier stud rebuilding construction scheme of a kind of bridge according to claim 5, it is characterized in that：Pressing plate in step S6
(2) steel plate of the thickness for 24mm~30mm is used.
7. the old pier stud rebuilding construction scheme of a kind of bridge according to claim 6, it is characterized in that：In pier after the completion of step S6
Post surface is carried out spray in a manner of gunite concrete and built.
8. the old pier stud rebuilding construction scheme of a kind of bridge according to claim 1, it is characterized in that：Concrete in step S8
Fill to hold in both hands using plug-in type vibrating and vibrated, progress should be layered when vibrating, thickness is 30-40cm and one-time continuous placing；Sternly
Lattice control concrete slump, suitably vibrate, are no longer sunk with concrete, surface starts bleeding, untill occurring without bubble.
9. the old pier stud rebuilding construction scheme of a kind of bridge according to claim 1, it is characterized in that：Shoulder pad described in step S4
For steelframe, step S8 fill to after shoulder pad, the inside of shoulder pad is together filled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954457.XA CN107761580A (en) | 2017-10-13 | 2017-10-13 | A kind of old pier stud rebuilding construction scheme of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954457.XA CN107761580A (en) | 2017-10-13 | 2017-10-13 | A kind of old pier stud rebuilding construction scheme of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107761580A true CN107761580A (en) | 2018-03-06 |
Family
ID=61269502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710954457.XA Pending CN107761580A (en) | 2017-10-13 | 2017-10-13 | A kind of old pier stud rebuilding construction scheme of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107761580A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411802A (en) * | 2018-05-30 | 2018-08-17 | 扬州大学 | A kind of underwater method for repairing pile foundation and scour hole |
| CN108457205A (en) * | 2018-03-09 | 2018-08-28 | 中国五冶集团有限公司 | A kind of bridge spanning the river reorganization and expansion construction method |
| CN108708298A (en) * | 2018-05-25 | 2018-10-26 | 上海应用技术大学 | A kind of bridge pier rapid constructing method of old bridge reparation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539045A (en) * | 2001-08-07 | 2004-10-20 | ���Ҳ�ҵ������ʽ���� | Pier-repairing and reinforcing panel and method for repairing and reinforcing piers using such panel |
| KR100580224B1 (en) * | 2005-07-25 | 2006-05-16 | 노윤근 | Method for lifting and lowering structures using a fabricated bracket having easy attachment and detachment, and increased safety |
| JP2007239244A (en) * | 2006-03-07 | 2007-09-20 | Kenji Takemoto | Temporary structure |
| CN102286940A (en) * | 2011-08-09 | 2011-12-21 | 中铁二十四局集团有限公司 | Construction method for remoulding old pier columns of bridges |
| CN104005567A (en) * | 2014-05-07 | 2014-08-27 | 北京工业大学 | Ultra-high-performance concrete reinforced concrete column with fiber reinforced polymers wound around steel pipe |
| CN104179128A (en) * | 2014-08-15 | 2014-12-03 | 安徽建工集团有限公司 | Concrete bridge pier reinforcement method |
| CN205205695U (en) * | 2015-10-20 | 2016-05-04 | 广州市江达潜水疏浚工程有限公司 | Consolidate pier |
-
2017
- 2017-10-13 CN CN201710954457.XA patent/CN107761580A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539045A (en) * | 2001-08-07 | 2004-10-20 | ���Ҳ�ҵ������ʽ���� | Pier-repairing and reinforcing panel and method for repairing and reinforcing piers using such panel |
| KR100580224B1 (en) * | 2005-07-25 | 2006-05-16 | 노윤근 | Method for lifting and lowering structures using a fabricated bracket having easy attachment and detachment, and increased safety |
| JP2007239244A (en) * | 2006-03-07 | 2007-09-20 | Kenji Takemoto | Temporary structure |
| CN102286940A (en) * | 2011-08-09 | 2011-12-21 | 中铁二十四局集团有限公司 | Construction method for remoulding old pier columns of bridges |
| CN102286940B (en) * | 2011-08-09 | 2013-07-24 | 中铁二十四局集团有限公司 | Construction method for remoulding old pier columns of bridges |
| CN104005567A (en) * | 2014-05-07 | 2014-08-27 | 北京工业大学 | Ultra-high-performance concrete reinforced concrete column with fiber reinforced polymers wound around steel pipe |
| CN104179128A (en) * | 2014-08-15 | 2014-12-03 | 安徽建工集团有限公司 | Concrete bridge pier reinforcement method |
| CN205205695U (en) * | 2015-10-20 | 2016-05-04 | 广州市江达潜水疏浚工程有限公司 | Consolidate pier |
Non-Patent Citations (2)
| Title |
|---|
| 王光勇: "甘棠江特大桥异常沉降桥墩的加固研究", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
| 钱申春: "公路、市政桥梁的墩柱加固技术", 《安徽建筑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457205A (en) * | 2018-03-09 | 2018-08-28 | 中国五冶集团有限公司 | A kind of bridge spanning the river reorganization and expansion construction method |
| CN108457205B (en) * | 2018-03-09 | 2019-08-13 | 中国五冶集团有限公司 | A kind of bridge spanning the river reorganization and expansion construction method |
| CN108708298A (en) * | 2018-05-25 | 2018-10-26 | 上海应用技术大学 | A kind of bridge pier rapid constructing method of old bridge reparation |
| CN108411802A (en) * | 2018-05-30 | 2018-08-17 | 扬州大学 | A kind of underwater method for repairing pile foundation and scour hole |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109667598B (en) | Tunnel composite lining design method based on total safety factor method | |
| CN101781879B (en) | Construction method of single-pylon cable-stayed bridge without dorsal cables | |
| CN109853381B (en) | Transitional structure for preventing bridge head from jumping and construction method thereof | |
| CN107268424A (en) | Can fast leveling precast assembly bridge pier structure and its construction method | |
| CN107905114B (en) | A kind of construction method of large span Successive interference cancellation | |
| CN108867310A (en) | The short rib T beam bridge of pretensioning prestressed concrete and its construction method | |
| CN107761580A (en) | A kind of old pier stud rebuilding construction scheme of bridge | |
| CN204738556U (en) | A device for landmark is whole to shift | |
| CN104963289A (en) | Integral one-time pouring construction method of large-volume concrete for special-shaped pier stud | |
| CN103469732B (en) | Construction method of preformed holes for foundation bolts of bridge support | |
| CN101575858A (en) | Construction method of steel cofferdam used for reinforcing underwater pier | |
| CN106401207A (en) | Superimposed connection structure for additionally arranging column foundation on existing building and construction method of superimposed connection structure | |
| CN107190627A (en) | Part earth anchored suspension bridge and its construction method | |
| CN103290784A (en) | Arched beam combination bridge lifting construction method | |
| CN104894954A (en) | Overall mounting and constructing method of pier stud reinforcing steel bars of urban bridge | |
| CN103374923A (en) | Method for prefabricating and mounting underwater pier | |
| CN110485433A (en) | Sand gravel geology Among Piles In Deep Foundation Pit formula diaphragm wall steel anchor method for protecting support | |
| CN110184948A (en) | A kind of Bridge beam construction method | |
| CN109096972A (en) | A kind of magnetic heat molten type epoxyn and its application | |
| CN108824211A (en) | A kind of bridge pier foundation in construction duration method in the river of bridge | |
| CN106948267B (en) | A kind of memorial archway bar formula bridge cable tower king-post method for synchronously constructing | |
| CN103015432A (en) | Construction method for changing steel pipe supports of ramp foundation pit | |
| CN107724252B (en) | A kind of continuous box girder hanging basket cantilever method construction | |
| CN206635638U (en) | Using the prefabricated thin-wall bent cap of prestressing with bond system | |
| CN215925670U (en) | Accurate positioning tool for prefabricating and installing bridge pier and connection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 325000 Room 303, C building, Yun Jin building, Station Road, Wenzhou, Zhejiang. Applicant after: Wenzhou Chengda transportation development Limited by Share Ltd Address before: 325000 Room 303, C building, Yun Jin building, Station Road, Wenzhou, Zhejiang. Applicant before: Wenzhou City Traffic Engineering Consulting Co. Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |
|
| RJ01 | Rejection of invention patent application after publication |