CN109958136A - The lattice column support system and its construction method of implementable prestressing force compensation - Google Patents
The lattice column support system and its construction method of implementable prestressing force compensation Download PDFInfo
- Publication number
- CN109958136A CN109958136A CN201910350174.3A CN201910350174A CN109958136A CN 109958136 A CN109958136 A CN 109958136A CN 201910350174 A CN201910350174 A CN 201910350174A CN 109958136 A CN109958136 A CN 109958136A
- Authority
- CN
- China
- Prior art keywords
- lattice column
- prestressing force
- foundation pit
- flexible joint
- lockplate
- 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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses the lattice column support systems and its construction method of a kind of implementable prestressing force compensation, support bracket is fixedly mounted on building bottom plate, foundation pit support is fixedly mounted on foundation pit side-wall, flexible joint is hinged on foundation pit support, the upper end of lattice column is connected by being symmetricly set on the prestressing force collocation structure of the left and right sides on lattice column with flexible joint, is that supporting beam applies prestressing force using prestressing force collocation structure；The upper end of lattice column is also connected by being symmetricly set on the anchor structure of the left and right sides on lattice column with flexible joint, is anchored using anchor structure to prestressed supporting beam is obtained.Prestress application of the present invention is simple, stablizes, and in loss of prestress, can repeat to apply prestressing force in time, realize prestressing force compensation, effectively control foundation pit displacement, balance soil mass of foundation pit lateral pressure.
Description
Technical field
The present invention relates to building foundation pits to go along with sb. to guard him field, and in particular to a kind of lattice column supporter of implementable prestressing force compensation
System and its construction method.
Background technique
In order to guarantee the safety of underground structure and foundation pit surrounding environment, need foundation pit side-wall and around using support plus
Gu etc. safeguard measures.In building-supporting, when foundation pit support width is within 100 meters or when being slightly larger than 100 meters, conventional construction is
It is horizontally-supported with fashioned iron or armored concrete；But (150 meters are greater than) when foundation pit width is larger, generallys use branch of clivus
Support.
The slope support construction of foundation pit generallys use fashioned iron slope support beam and is supported at present, and one end of beam is supportted on fashioned iron slope
It is resisted against on base plate of foundation pit or on basement bottom board, the other end is resisted against on foundation pit side.The slope of foundation pit in the prior art
Support construction is only supported simply by fashioned iron slope support beam, by fashioned iron slope support beam driven bearing by the outside of foundation pit
Soil pressure, this method are difficult to effectively control foundation pit displacement, are easy to produce the problems such as foundation pit displacement increases.And use traditional band
When the foundation pit supporting project prestressing force lattice column diagonal brace construction of spigot-and-socket flexible joint, there is also following deficiencies: first is that workmanship is multiple
Miscellaneous, effect is low；Second is that, because of angle reason, difficulty of construction is big in the installation of diagonal brace lattice column flexible joint；Third is that not reproducible apply
Prestressing；Fourth is that steel waste is more.
To solve present in the foundation pit supporting project prestressing force lattice column diagonal brace construction of conventional belt spigot-and-socket flexible joint
Problem, 105908750 B of Publication No. CN, publication date be August 31 in 2016 application for a patent for invention file in disclose " base
Cheat brace type steel support system "；It includes the support bracket being arranged on building bottom plate and setting in foundation pit side and support ox
Fashioned iron slope supporting beam between leg, the lower end of fashioned iron slope supporting beam are resisted against on support bracket, upper end and foundation pit side
Opposite supporting type stress reservation member is equipped between face；But the structural system can not effectively carry out prestressed application and compensation, and tie
Structure is complicated, support system it is costly, installation and remove that difficulty is larger, these all bring difficulty to the popularization and application of the technology
Topic.
Summary of the invention
The present invention is to provide a kind of lattice of implementable prestressing force compensation to avoid above-mentioned deficiency of the prior art
Column support system and its construction method, to improve the effect of pattern foundation pit supporting structure, improve foundation pit enclosure structure stability, reduction foundation pit change
Shape amount, and then ensure construction quality, accelerate construction progress, reduce construction cost.
The present invention adopts the following technical scheme that in order to solve the technical problem
The lattice column support system of the implementable prestressing force compensation of the present invention, including support ox is fixedly mounted on building bottom plate
Foundation pit support is fixedly mounted on foundation pit side-wall, is provided as supporting beam between support bracket and the foundation pit support for leg
Lattice column；Its main feature is that: flexible joint is hinged on the foundation pit support, the upper end of the lattice column is by being symmetricly set on
The prestressing force collocation structure of the left and right sides is connected with flexible joint on lattice column, is described using the prestressing force collocation structure
Supporting beam applies prestressing force；The upper end of the lattice column also by be symmetricly set on lattice column the anchor structure of the left and right sides with
Flexible joint is connected, and is anchored using the anchor structure to prestressed supporting beam is obtained；The lower end of the lattice column
It is hinged with support bracket.
The characteristics of lattice column support system of the implementable prestressing force compensation of the present invention, lies also in, the prestressing force collocation structure
Setting are as follows: set casing for the flexible joint, the upper end of the lattice column is inserted in described sleeve pipe, and can form axis
Opposite sliding on direction, is oriented to each other；In the upper end of the lattice column, counter-force seat is set on the lateral wall of lattice column,
Footstock is set on position corresponding with the counter-force seat on the flexible joint, is installed between the counter-force seat and footstock
For applying the jack answered in advance, the axis of the jack and the axis of lattice column are parallel to each other.
The characteristics of lattice column support system of the implementable prestressing force compensation of the present invention, lies also in, the anchor structure setting
Are as follows: the upper end in the lattice column, on the lateral wall positioned at lattice column be arranged under lockplate, on the flexible joint with it is described
Upper lockplate is set on the corresponding position of lower lockplate, dismountable anchor is utilized between the upper lockplate and lower lockplate
Fixing bolt is fixedly connected, and the axis of the anchor bolt and the axis of lattice column are parallel to each other.
The characteristics of lattice column support system of the implementable prestressing force compensation of the present invention, lies also in, on the lattice column, position
Prestressing force collocation structure and anchor structure in the same side are one group of prestressing force collocation structure is centrally-disposed, two groups of anchors
Fixing structure symmetrically divides the two sides for being in prestressing force collocation structure.
The characteristics of construction method of the lattice column support system of the present invention implementable prestressing force compensation be as follows into
Row:
Counter-force seat and lower lockplate are passed through deep floor respectively and are fixedly welded on the setting position of lattice column by step 1；
Footstock and upper lockplate are passed through deep floor respectively to be welded on the corresponding position of flexible joint；
Step 2, by the lower end of the lattice column and support bracket it is hinged, the flexible joint and foundation pit support is hinged,
It is fixedly connected between the flexible joint and lattice column using anchor bolt, completes installation of the lattice column in foundation pit；
Step 3, jack is installed in symmetrical two sides respectively on lattice column, for symmetrical two jack
Synchronous oil pipe is set, keeps left and right sides jack stroke consistent using the fuel feeding of the synchronous oil pipe, realizes that two sides equilibrium is synchronous
Prestressed application；When prestressing force reaches setting value, using each anchor bolt of nut locking, jack can be then withdrawn from；
Step 4, when loss of prestress occurs, jack and synchronous oil pipe are installed again；Keeping anchor bolt connection
In the state of pressurize for the first time, eliminate anchor bolt on stress；It then unclamps anchor bolt and carries out second of pressurization, until pressure
When force compensating to the prestress value set, anchor bolt is relocked, completes prestressing force compensation.
Step 5, after the completion of foundation pit construction, remove and anchor female bolt and each flexible joint, and remove each lattice column, realize back
It receives.
Compared with the prior art, the invention has the advantages that:
1, prestress application of the present invention is simple, stablizes, and in loss of prestress, can repeat to apply prestressing force in time, realize
Prestressing force compensation effectively controls foundation pit displacement, balances soil mass of foundation pit lateral pressure；
2, for bearing diagonal lattice column production and installation in the present invention, the simple speed of process is fast, and one-pass molding safety is high
Effect；
3, the present invention greatly reduces the use of steel compared to spigot-and-socket flexible joint structure, economizes on resources, environmentally protective；
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is prestressed structure schematic diagram in the present invention；
Fig. 3 is that lattice column and flexible joint cooperate sectional schematic diagram in the present invention；
Figure label: 1 counter-force seat, 2 jack, 3 footstocks, 4 lower lockplates, 5 anchor bolts, 6 top nuts, 7 counter-force seats add
Strong floor, 8 lower lockplate deep floors, 9 lattice columns, 10 footstock deep floors, 11 flexible joints, lockplate on 12,13 lockings
Fixed board deep floor, 14 synchronous oil pipes, 15 lower nuts, 16 support brackets, 17 foundation pit supports.
Specific embodiment
Referring to figure 1, figure 2 and figure 3, the lattice column support system of implementable prestressing force compensation is included in building in the present embodiment
Support bracket 16 is fixedly mounted on bottom plate, foundation pit support 17 is fixedly mounted on foundation pit side-wall, in support bracket 16 and foundation pit branch
It is provided as the lattice column 9 of supporting beam between seat 17, flexible joint 11, the upper end of lattice column 9 are hinged on foundation pit support 17
Prestressing force collocation structure by being symmetricly set on the left and right sides on lattice column 9 is connected with flexible joint 11, utilizes prestressing force
Collocation structure is that supporting beam applies prestressing force；Anchor of the upper end of lattice column 9 also by being symmetricly set on the left and right sides on lattice column 9
Fixing structure is connected with flexible joint 11, is anchored using anchor structure to prestressed supporting beam is obtained；Under lattice column 9
End and support bracket 16 are hinged.
In specific implementation, as shown in Figures 2 and 3, prestressing force collocation structure setting are as follows: be set as covering by flexible joint 11
Pipe, the upper end of lattice column 9 are inserted in casing, and can form the opposite sliding on axis direction, are oriented to each other；In lattice column 9
Upper end, on the lateral wall of lattice column 9 be arranged counter-force seat 1, on flexible joint 11 on position corresponding with counter-force seat 1
Footstock 3 is set, and installation is for applying the jack 2 answered in advance, the axis and lattice column of jack 2 between counter-force seat 1 and footstock 3
9 axis is parallel to each other；Anchor structure setting are as follows: in the upper end of lattice column 9, lower lock is set on the lateral wall of lattice column 9
Upper lockplate 12 is arranged, in upper lockplate 4 and lower lock in fixed board 4 on flexible joint 11 on position corresponding with lower lockplate 4
It is fixedly connected between fixed board 12 using dismountable anchor bolt 5, the axis phase of the axis and lattice column 9 of anchor bolt 5
It is mutually parallel；On lattice column 9, prestressing force collocation structure and anchor structure positioned at the same side are by one group of prestressing force collocation structure
Centrally-disposed, two groups of anchor structures symmetrically divide the two sides for being in prestressing force collocation structure.
In specific implementation, counter-force seat deep floor 7, counter-force seat 1 and counter-force seat deep floor are set at the back of counter-force seat 1
7 are fixedly welded on the lateral wall of lattice column 9；Footstock deep floor 10 is set at the back of footstock 3, footstock 3 and footstock add
Strong floor 10 is fixedly welded on the lateral wall of flexible joint 11；The lockplate ribs under the setting of the back of lower lockplate 4
Plate 8, lower lockplate 4 and lower lockplate deep floor 8 are fixedly welded on the lateral wall of lattice column 9；In upper lockplate 12
Upper lockplate deep floor 13 is arranged in back, and upper lockplate 12 and upper lockplate deep floor 13 are fixedly welded on flexible joint 11
Lateral wall on, each welding position is fully welded using angle；Anchor bolt 5 is high-strength bolt, and lower end is fixedly welded on lower locking
On the center of plate 4, central through hole of the upper end on the upper lockplate 12, and by top nut 6 and lower nut 15 by its with it is upper
Lockplate 12 anchors；Each connection structure should ensure that it is solid and reliable, be able to satisfy maximum prestress construction requirement.
The construction method of the lattice column support system of implementable prestressing force compensation is to carry out as follows in the present embodiment:
Step 1, the setting position that counter-force seat 1 and lower lockplate 4 are fixedly welded on by deep floor to lattice column 9 respectively
On；Footstock 3 and upper lockplate 12 are welded on by deep floor respectively on the corresponding position of flexible joint 11.
It is step 2, the lower end of lattice column 9 and support bracket 16 is hinged, flexible joint 11 and foundation pit support 17 is hinged,
It is fixedly connected between flexible joint 11 and lattice column 9 using anchor bolt 5, completes installation of the lattice column 9 in foundation pit.
Step 3, jack 2 is installed in symmetrical two sides respectively on lattice column 9, very heavy for symmetrical two
2 setting synchronous oil pipe 14 of top, keeps the left and right sides 2 stroke of jack consistent, realizes that two sides are balanced using the fuel feeding of synchronous oil pipe 14
Synchronize prestressed application；When prestressing force reaches setting value, using each anchor bolt 5 of nut locking, thousand can be then withdrawn from
Jin top 2.
Step 4, when loss of prestress occurs, jack 2 and synchronous oil pipe 14 are installed again；Keeping anchor bolt 5
It pressurizes for the first time in the state of connection, eliminates the stress on anchor bolt 5；It then unclamps anchor bolt 5 and carries out second of pressurization,
Until relocking anchor bolt 5 when pressure compensation to the prestress value set, prestressing force compensation is completed.
Step 5, after the completion of foundation pit construction, remove and anchor female bolt 5 and flexible joint 11, and remove lattice column 9, realize back
It receives.
Claims (5)
1. a kind of lattice column support system of implementable prestressing force compensation, including support bracket is fixedly mounted on building bottom plate
(16), foundation pit support (17) are fixedly mounted on foundation pit side-wall, are set between the support bracket (16) and foundation pit support (17)
Set the lattice column (9) as supporting beam；It is characterized in that: be hinged with flexible joint (11) on the foundation pit support (17), it is described
The upper end of lattice column (9) is by being symmetricly set on lattice column (9) the prestressing force collocation structure and flexible joint of the left and right sides
(11) it is connected, is that the supporting beam applies prestressing force using the prestressing force collocation structure；The upper end of the lattice column (9) is also
Anchor structure by being symmetricly set on the left and right sides on lattice column (9) is connected with flexible joint (11), utilizes the anchoring
Structure is anchored to prestressed supporting beam is obtained；The lower end of the lattice column (9) and support bracket (16) are hinged.
2. the lattice column support system of implementable prestressing force compensation according to claim 1, characterized in that the prestressing force
Collocation structure setting are as follows: set casing for the flexible joint (11), the upper end of the lattice column (9) is inserted in described sleeve pipe
In, and the opposite sliding on axis direction can be formed, it is oriented to each other；In the upper end of the lattice column (9), it is located at lattice column (9)
Lateral wall on be arranged counter-force seat (1), be arranged on position corresponding with counter-force seat (1) on the flexible joint (11)
Footstock (3), installation is for applying the jack answered in advance (2) between the counter-force seat (1) and footstock (3), the jack (2)
The axis of axis and lattice column (9) be parallel to each other.
3. the lattice column support system of implementable prestressing force compensation according to claim 2, characterized in that the anchoring knot
Structure setting are as follows: in the upper end of the lattice column (9), be located on the lateral wall of lattice column (9) and lower lockplate (4) are set, described
Upper lockplate (12) are set on flexible joint (11), in the upper lockplate on position corresponding with lower lockplate (4)
(4) it is fixedly connected between lower lockplate (12) using dismountable anchor bolt (5), the axis of the anchor bolt (5)
Line and the axis of lattice column (9) are parallel to each other.
4. the lattice column support system of implementable prestressing force compensation according to claim 3, characterized in that in the lattice
On column (9), prestressing force collocation structure and anchor structure positioned at the same side are that one group of prestressing force collocation structure is centrally disposed
Position, two groups of anchor structures symmetrically divide the two sides for being in prestressing force collocation structure.
5. a kind of construction method of the lattice column support system of implementable prestressing force compensation as claimed in claim 3, it is characterized in that
It carries out as follows:
Step 1, the setting position that counter-force seat (1) and lower lockplate (4) are fixedly welded on by deep floor to lattice column (9) respectively
It sets；Footstock (3) and upper lockplate (12) are welded on the corresponding position of flexible joint (11) respectively by deep floor；
Step 2, by the lower end of the lattice column (9) and support bracket (16) hingedly, by the flexible joint (11) and foundation pit branch
Seat (17) hingedly, is fixedly connected between the flexible joint (11) and lattice column (9) using anchor bolt (5), is completed
Installation of the lattice column (9) in foundation pit；
Step 3, jack (2) are installed in symmetrical two sides respectively on lattice column (9), very heavy for symmetrical two
(2) setting synchronous oil pipe (14) is pushed up, keeps left and right sides jack (2) stroke consistent using the fuel feeding of the synchronous oil pipe (14),
Realize that two sides equilibrium synchronizes prestressed application；When prestressing force reaches setting value, using each anchor bolt of nut locking (5),
Jack (2) can then be withdrawn from；
Step 4, when loss of prestress occurs, jack (2) and synchronous oil pipe (14) are installed again；Keeping anchor bolt
(5) it pressurizes for the first time in the state of connecting, eliminates the stress on anchor bolt (5)；It then unclamps anchor bolt (5) and carries out second
Secondary pressurization completes prestressing force compensation until relocking anchor bolt (5) when pressure compensation to the prestress value set.
Step 5, after the completion of foundation pit construction, remove and anchor female bolt (5) and each flexible joint (11), and remove each lattice column (9),
Realize recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350174.3A CN109958136A (en) | 2019-04-28 | 2019-04-28 | The lattice column support system and its construction method of implementable prestressing force compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350174.3A CN109958136A (en) | 2019-04-28 | 2019-04-28 | The lattice column support system and its construction method of implementable prestressing force compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109958136A true CN109958136A (en) | 2019-07-02 |
Family
ID=67026864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910350174.3A Pending CN109958136A (en) | 2019-04-28 | 2019-04-28 | The lattice column support system and its construction method of implementable prestressing force compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958136A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305233A (en) * | 2020-04-17 | 2020-06-19 | 中交一公局集团有限公司 | Axial force compensation type prestress fish-bellied foundation pit steel supporting structure and construction method thereof |
| CN111997411A (en) * | 2020-07-15 | 2020-11-27 | 中建三局第一建设工程有限责任公司 | Post-cast strip supporting device and supporting method |
| CN118547699A (en) * | 2024-07-29 | 2024-08-27 | 上海巨鲲科技有限公司 | Steel support combined structure for narrow foundation pit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05156634A (en) * | 1991-12-11 | 1993-06-22 | Shiiran Ru | Method of construction of self-aligning type reserve capacity support system |
| KR20100030706A (en) * | 2008-09-11 | 2010-03-19 | 홍석희 | Temporary soil shearing system supported by long span prestress and wale and construction method therefor |
| CN203613546U (en) * | 2013-12-16 | 2014-05-28 | 广东省建工设计院 | Strain compensation device of reinforced concrete inner support in ultra-large type foundation pit |
| CN104452775A (en) * | 2014-11-26 | 2015-03-25 | 江苏鸿基科技有限公司 | Prestress support used for foundation pit and construction method |
| CN105908750A (en) * | 2016-04-21 | 2016-08-31 | 东通岩土科技（杭州）有限公司 | Sway rod profile steel supporting system for foundation pit |
| CN106013170A (en) * | 2016-05-20 | 2016-10-12 | 东通岩土科技（杭州）有限公司 | Prestress steel member crescent beam ejecting device |
| CN108343070A (en) * | 2018-03-12 | 2018-07-31 | 上海建工建集团有限公司 | A kind of Bidirectional supporting system deformation monitoring compensation device and construction method |
| CN210031846U (en) * | 2019-04-28 | 2020-02-07 | 安徽永昊建设工程有限公司 | Lattice column support system capable of implementing prestress compensation |
-
2019
- 2019-04-28 CN CN201910350174.3A patent/CN109958136A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05156634A (en) * | 1991-12-11 | 1993-06-22 | Shiiran Ru | Method of construction of self-aligning type reserve capacity support system |
| KR20100030706A (en) * | 2008-09-11 | 2010-03-19 | 홍석희 | Temporary soil shearing system supported by long span prestress and wale and construction method therefor |
| CN203613546U (en) * | 2013-12-16 | 2014-05-28 | 广东省建工设计院 | Strain compensation device of reinforced concrete inner support in ultra-large type foundation pit |
| CN104452775A (en) * | 2014-11-26 | 2015-03-25 | 江苏鸿基科技有限公司 | Prestress support used for foundation pit and construction method |
| CN105908750A (en) * | 2016-04-21 | 2016-08-31 | 东通岩土科技（杭州）有限公司 | Sway rod profile steel supporting system for foundation pit |
| CN106013170A (en) * | 2016-05-20 | 2016-10-12 | 东通岩土科技（杭州）有限公司 | Prestress steel member crescent beam ejecting device |
| CN108343070A (en) * | 2018-03-12 | 2018-07-31 | 上海建工建集团有限公司 | A kind of Bidirectional supporting system deformation monitoring compensation device and construction method |
| CN210031846U (en) * | 2019-04-28 | 2020-02-07 | 安徽永昊建设工程有限公司 | Lattice column support system capable of implementing prestress compensation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305233A (en) * | 2020-04-17 | 2020-06-19 | 中交一公局集团有限公司 | Axial force compensation type prestress fish-bellied foundation pit steel supporting structure and construction method thereof |
| CN111997411A (en) * | 2020-07-15 | 2020-11-27 | 中建三局第一建设工程有限责任公司 | Post-cast strip supporting device and supporting method |
| CN111997411B (en) * | 2020-07-15 | 2022-10-11 | 中建三局第一建设工程有限责任公司 | Cantilever plate supporting method |
| CN118547699A (en) * | 2024-07-29 | 2024-08-27 | 上海巨鲲科技有限公司 | Steel support combined structure for narrow foundation pit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109958136A (en) | The lattice column support system and its construction method of implementable prestressing force compensation | |
| CN107059880B (en) | Reinforcing structure of concrete-fabricated section steel mixed support system of ultra-large deep foundation pit and construction method thereof | |
| CN107143039B (en) | Construction method of shock-insulation elastic sliding plate support for building | |
| CN103437300A (en) | Construction method for erecting double cantilevers for pier top steel beam without pier-side bracket | |
| WO2019148631A1 (en) | Foundation pit support system capable of actively controlling displacement thereof and design method thereof | |
| CN103410102A (en) | H-shaped double column pier wide-bridge-surface cantilever temporary consolidation structure and construction method thereof | |
| CN103321155B (en) | Viaduct pier operation platform system and build this system and pour into a mould the method for bridge pier | |
| CN112095495A (en) | Bridge underpinning support structure and construction method | |
| CN206784392U (en) | The horizontal inner supporting body system of deep basal pit assembled combination steel construction | |
| KR20140147573A (en) | Management and reverse displacement of composite bridge composite inclined support structure and installation method | |
| CN205242268U (en) | Anchor triangular bracket | |
| CN106758839A (en) | A kind of strutting system and its installation method of the cast-in-place segmental construction of pier top | |
| CN106088379A (en) | A kind of BRB locking detrusion nodal point connecting and installation method thereof | |
| CN117328379A (en) | Bridge widening structure and construction method | |
| JPH09316892A (en) | Pile foundation reinforcing structure | |
| CN219793664U (en) | V-shaped pier construction bent frame system | |
| CN111926826A (en) | Steel support conical wedge expansion type loose end device for foundation pit group collaborative construction and construction method thereof | |
| CN207277211U (en) | Large steel pipe truss for bent cap cast-in-place construction | |
| CN103924507A (en) | Curved skew bridge seat stress adjusting method | |
| CN210031846U (en) | Lattice column support system capable of implementing prestress compensation | |
| CN211772934U (en) | Zero number block support system of bridge | |
| CN209949014U (en) | Dead weight formula photovoltaic support | |
| KR20130070242A (en) | Apparatus for constructing v-shaped tower to reducing cross-section of top of bridge using jack-up and method thereof | |
| CN205617389U (en) | Detachable unearthed platform | |
| CN112081596A (en) | Reaction frame structure of shield starting well |
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: 230601 room 8306, floor 3, building 4 (3 b), innovation and entrepreneurship Park, No. 268, Furong Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Yonghao Construction Engineering Co.,Ltd. Address before: 230001 Blue Business Port 188 Qianshan Road, Shushan District, Hefei City, Anhui Province Applicant before: Anhui Yonghao Construction Engineering Co.,Ltd. |
|
| CB02 | Change of applicant information |