CN108316669A - Wall displacement support device under the high load action of reinforced concrete shear wall structure - Google Patents
Wall displacement support device under the high load action of reinforced concrete shear wall structure Download PDFInfo
- Publication number
- CN108316669A CN108316669A CN201810225950.2A CN201810225950A CN108316669A CN 108316669 A CN108316669 A CN 108316669A CN 201810225950 A CN201810225950 A CN 201810225950A CN 108316669 A CN108316669 A CN 108316669A
- Authority
- CN
- China
- Prior art keywords
- upright bar
- upper beam
- wall
- supporting system
- reinforced concrete
- 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
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 38
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 24
- 238000012806 monitoring device Methods 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 239000004567 concrete Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009415 formwork Methods 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 16
- 238000009434 installation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000002787 reinforcement Effects 0.000 description 7
- 238000011068 loading method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009436 residential construction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G23/0222—Replacing or adding wall ties
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses wall displacement support devices under a kind of high load action of reinforced concrete shear wall structure, belong to building structure strengthening field, its structure includes horizontal supporting system, Universal level-metre, vertical supporting system, load applies and monitoring device, horizontal supporting system includes upper beam and bottom end rail, vertical supporting system includes left upright bar and right upright bar, left upright bar and right upright bar are symmetricly set between upper beam and bottom end rail, load applies and monitoring device includes two groups, two groups of loads apply and monitoring device is separately positioned on left upright bar and right upright bar top, every group of load applies and monitoring device respectively includes screw jack, strain gauge and stress display, strain gauge is electrically connected with stress display, the top of upper beam is provided with Universal level-metre.The present invention has carries out temporary support to wall, then cuts old concrete, formwork pours novel concrete, the features such as to achieve the effect that concrete replacement.
Description
Technical field
The present invention relates to walls under the high load action of building structure strengthening field, especially reinforced concrete shear wall structure
Displacement support device.
Background technology
Currently, being still the building structure pattern of most widely used model in high-rise industry and residential construction area, concrete structure
One of.The pattern has the characteristics that stress performance is good, speed of application is fast, durability is high, construction cost relative moderate.However,
In building process of construction, because Construction control is not tight and the various reasons such as technical measures are not in place, it is inevitably present structure
Construction quality is unsatisfactory for situations such as design and related specification requirement, and bearing capacity, comfort and stability will substantially reduce, thus
Produce this field of concrete structure reinforcement.It is existing according to China《Concrete structure reinforcement design specification》GB50367-
2006, concrete structure reinforcement method mainly have Enlargement of Section, displacement coagulation local method, additional electrothermal prestressing, adhesivebonded bar and
Fibrous composite method etc..
In displacement concrete strengthening field, reinforce it is previous as first the use in concrete member support device of quasi- displacement is propped up
Support.Existing support device is generally made of according to construction experience or simple computation components such as steel pipe and brackets.The type support dress
Set construction it is relatively easy and rough, in loading procedure without accurate load monitor system, constructing device installation and dismantle it is cumbersome,
Can not efficient circulation running, be suitable for that smaller by load, displacement difficulty is small, operating surface is rich, construction risk is smaller component
Into line replacement.
But when high-rise reinforced concrete shear wall concrete replacement is reinforced, because shear wall structure there are building body height compared with
Situations such as height, wall bearing load is huge, and stress is complicated, constructing operation faciostenosis.Using above-mentioned conventional support device, then exist
Situations such as loading is rough, and load added by support device effectively can not be calculated and be monitored, and loading error is huge；Because of supporting device body
Product is larger, to pass through support, often needs to destroy wall steel bar.Consider These characteristics, construction risk coefficient will be caused to increase, construct
Difficulty and risk increase severely.In addition, displacement apparatus is often without specified support loads, construction recyclability is poor, and economic benefit is bad.
Invention content
The technical assignment of the present invention be for the above-mentioned prior art in deficiency a kind of reinforced concrete shear wall knot is provided
Wall displacement support device under the high load action of structure, wall displacement support under the high load action of the reinforced concrete shear wall structure
Device is symmetrically arranged on by being installed on floor and the horizontal supporting system of this layer of ground corresponding position on quasi- displacement shear wall
Vertical supporting system between horizontal supporting system, the load by acting on vertical supporting system top applies and monitoring device pair
Horizontal supporting system is further applied load, and carries out temporary support to wall, then cuts old concrete, and formwork pours novel concrete, from
And achieve the effect that concrete replacement.
The technical solution adopted by the present invention to solve the technical problems is：It include horizontal supporting system, Universal level-metre,
Vertical supporting system, load apply and monitoring device, the horizontal supporting system include upper beam and bottom end rail, and described is upper
Crossbeam and bottom end rail are correspondingly arranged up and down, and upper beam, bottom end rail are respectively arranged in floor on quasi- displacement wall and correspond to wall and intend
Wall nearly floor bottoms wall position is replaced, the vertical supporting system includes left upright bar and right upright bar, the left upright bar
And right upright bar is symmetricly set between upper beam and bottom end rail, the load applies and monitoring device includes two groups, two groups of lotuses
It carries application and monitoring device is separately positioned on left upright bar and right upright bar top, every group of load applies and monitoring device respectively includes spiral shell
Rotation jack, strain gauge and stress display, screw jack are arranged in the top of vertical supporting system, screw jack
Top be provided with strain gauge, the top of strain gauge is upper beam, the strain gauge and stress display
It electrically connects, the top of the upper beam is provided with Universal level-metre.
The upper beam, bottom end rail are respectively steel beam with box shape, and cross section is 155mm × 155mm, plate thickness 20mm.
The left upright bar, right upright bar are respectively round steel pipe, and both ends solder up, round steel pipe outside diameter is 159mm, wall thickness
20mm。
The screw jack is mechanical rocker-arm screw jack.
Wall displacement support device and prior art phase under the high load action of reinforced concrete shear wall structure of the present invention
Than having advantageous effect following prominent：It respectively forms component to device to optimize, when installation does not destroy wall and floor
Reinforcing bar；Often set support device has specified support load；With load monitoring device, support device load applies accurately, can be right
Added load monitor and increase and decrease in real time；, the spies such as stress clear, safety and stability, assembling speed fast apparent with simple structure
Point, can more covering devices use simultaneously, meet high-layer shear force wall reinforcement replacement modular construction requirement, be suitble to efficient circulation operation,
Construction efficiency is greatly improved, construction cost is saved.
Description of the drawings
Attached drawing 1 is the front view structure signal of wall displacement support device under the high load action of reinforced concrete shear wall structure
Figure；
Attached drawing 2 is the shaft side figure of wall displacement support device under the high load action of reinforced concrete shear wall structure；
Attached drawing 3 is the left view of wall displacement support device under the high load action of reinforced concrete shear wall structure；
Attached drawing 4 is the vertical view of wall displacement support device under the high load action of reinforced concrete shear wall structure；
Attached drawing 5 is the construction and installation signal of wall displacement support device under the high load action of reinforced concrete shear wall structure
Figure；
Reference sign：1, horizontal supporting system；11, upper beam；12, bottom end rail；2, vertical supporting system；21, left
Upright bar；22, right upright bar；3, load application and monitoring device；31, screw jack；32, strain gauge；33, stress is shown
Device；4, Universal level-metre.
Specific implementation mode
With reference to Figure of description 1 to attached drawing 5 to wall under the high load action of reinforced concrete shear wall structure of the present invention
Displacement support device is described in detail below.
Wall displacement support device under the high load action of reinforced concrete shear wall structure of the present invention, structure includes water
Flat support system 1, Universal level-metre 4, vertical supporting system 2, load applies and monitoring device 3, the horizontal supporting system 1
Including upper beam 11 and bottom end rail 12, the upper beam 11 and about 12 bottom end rail are correspondingly arranged, upper beam 11, bottom end rail 12
It is respectively arranged in floor on quasi- displacement wall and corresponds to wall and quasi- displacement wall nearly floor bottoms wall position, the vertical branch
Support system 2 includes left upright bar 21 and right upright bar 22, and the left upright bar 21 and right upright bar 22 are symmetricly set on upper beam 11 under
Between crossbeam 12, the load applies and monitoring device 3 includes two groups, and two groups of loads apply and monitoring device 3 is respectively set
On 22 top of left upright bar 21 and right upright bar, every group of load applies and monitoring device 3 respectively includes screw jack 31, stress sensing
Device 32 and stress display 33, screw jack 31 are arranged on the top of vertical supporting system 2, and the top of screw jack 31 is set
It is equipped with strain gauge 32, the top of strain gauge 32 is upper beam 11, the strain gauge 32 and stress display
33 electrically connect, and the top of the upper beam 11 is provided with Universal level-metre 4.Upper beam when installation in horizontal supporting system 1
11 and bottom end rail 12 level, left upright bar 21, right upright bar 22, screw jack 31, strain gauge 32 are adjusted to by Universal level-metre 4
It is arranged symmetrically and keeps vertical.After installation forming, each component is from bottom to top：Bottom end rail 12, vertical supporting system 2, spiral thousand
Jin top 31, strain gauge 32, upper beam 11.Strain gauge 32 can moment monitors load situation of change, and pass through spiral thousand
Jin 31 real-time loadings of top or unloading.
The upper beam 11, bottom end rail 12 are respectively steel beam with box shape, and cross section is 155mm × 155mm, and plate thickness is
20mm.Convenient for by being passed through between wall main reinforcement without destroying main reinforcement.
The left upright bar 21, right upright bar 22 are respectively round steel pipe, and both ends solder up penetrates, rib with round steel pipe fine melt
It planishes at angle, is convenient for passing through floors and wall；Round steel pipe outside diameter is 159mm, wall thickness 20mm.Left upright bar 21, right upright bar 22 and on
Crossbeam 11, bottom end rail 12 pass through optimization design, and when installation does not destroy wall and floor bar.
The screw jack 31 is mechanical rocker-arm screw jack.
Wall displacement support device composition freely-supported accepts system, each structure under the high load action of reinforced concrete shear wall structure
Part is symmetrically installed, and vertical member keeps axle center alignment.Specially：Upper beam 11, bottom end rail 12 are respectively along shear wall body or so pair
Claim；Left upright bar 21, right upright bar 22 are symmetrical along shear wall body；Axle center is kept between screw jack 31, strain gauge 32
Alignment.
Wall displacement support device under a set of high load action of reinforced concrete shear wall structure effectively supports load can
Up to 50 tons.
Often set support device has specified support load, can multigroup while mating recycling.
In before the construction of high-rise reinforced concrete shear wall structure wall substitution reinforcement, following preparation need to be done：
Determine the vertical unloading force F of quasi- displacement wall；Laboratory determines the bearing capacity F of single set support device*；Needed for calculating
Support device installs tricks n=F/F*。
Quasi- displacement wall is determined that single set displacement apparatus corresponds to support wall according to wall length L and support installation tricks n
Length L*=L/n.
Determine that each component hole of support device pierces more position, the list covering device position that punches is total to three classes, respectively：Quasi- displacement wall
The horizontal hole of body upper wall, the hole pass through upper beam 11；It is quasi- to replace the nearly horizontal hole of floor bottoms wall of wall, the hole
Pass through bottom end rail 12；Vertical hole at quasi- displacement wall floor, the hole pass through left upright bar 21 and right upright bar 22.
Horizontal hole do slurry it is smooth after, upper beam 11, bottom end rail 12 are passed through respectively, using Universal level-metre 4 by upper cross
Beam 11, bottom end rail 12 flatten between two parties and build-in.Referring to Figure 5, both ends symmetrically install respectively left upright bar 21 and right upright bar 22 and
Screw jack 31.Both sides screw jack 31 is shaken to away from 11 bottom surface of upper beam about 100mm, is installed in screw jack 31
Strain gauge 32 (sensor ess-strain loads relationship by experimental determination), and connect stress display 33.Slowly will
Screw jack 31 is shaken to strain gauge 32 and is contacted with 11 bottom surface of upper beam, and starts to load, and loading procedure is in strict accordance with biography
Sensor laboratory calibration uses.After power to be loaded stably reaches design unloading value, corresponding wall section wall is removed, formwork pours new mixed
Solidifying soil.
It should be noted that when the device use of wall displacement support under the high load action of this reinforced concrete shear wall structure：It is vertical vertical
It is consistent that bar, screw jack 31, strain gauge 32 should strictly control main shaft, avoids bias；Both ends screw jack 31 loads
Should remain a constant speed rising in the process, control upper beam 11 with Universal level-metre 4, bottom end rail 12 keeps horizontal；Screw jack 31
Loads at different levels should be executed in strict accordance with laboratory stress-strain diagram, and be matched with strain gauge 32；Wall was removed
Cheng Zhong answers stringent monitor stress sensor 32 to read, logarithm variation abnormality point should judge in time take corresponding ftercompction or
Regulating measures.
Wall displacement support device has the following effects that under the high load action of reinforced concrete shear wall structure of the present invention：
Jack, strain gauge 32, stress display 33 cooperation can examinations support load, with design support load
Implement comparison, plus-minus load is flexibly accurate；Securely and reliably；
12 installation site of lower and upper cross-member is convenient, and bottom end rail 12 is located at quasi- displacement wall nearly floor bottoms wall position；Upper cross
Beam 11 is located at the positions upper layer floor about 1m, is highly advantageous for operation, is not required to set by setting up the auxiliary such as scaffold and fence
It applies, it is safe and efficient；
The covering device is because displacement wall position is in addition to the left upright bar 21 of bottom bottom end rail 12 and side and right upright bar 22, no correlation
Component blocks, and is conducive to construction formwork；Concreting mouth is located at upper layer floor, and it is closely knit to be conducive to pouring for concrete.Construction matter
Amount has higher guarantee；
Because left upright bar 21, right upright bar 22, upper beam 11, bottom end rail 12 under the premise of ensureing bearing capacity it is excellent by section
Choosing, hole (wall and floor) are opened up without excessive, and through walls and floor member need not destroy the original reinforcing bar of structure；
Every group there is fixed limit to carry, and multigroup can simultaneously use, facilitates cycle operation.
Illustrative embodiments listed above are not to technical solution described in the invention only for understanding that the present invention is used
Restriction, the those of ordinary skill in relation to field described in claim on the basis of technical solution, can also make a variety of changes
Change or deformation, all equivalent variations or deformation should all be covered within the claims of the present invention.The present invention is not
Place is described in detail, is the known technology of those skilled in the art of the present technique.
Claims (4)
1. wall displacement support device under the high load action of reinforced concrete shear wall structure, it is characterized in that：Including horizontally-supported
System, Universal level-metre, vertical supporting system, load apply and monitoring device, the horizontal supporting system include upper beam
And bottom end rail, the upper beam and bottom end rail are correspondingly arranged up and down, the vertical supporting system includes that left upright bar and the right side are vertical
Bar, the left upright bar and right upright bar are symmetricly set between upper beam and bottom end rail, and the load applies and monitoring device
Including two groups, two groups of loads apply and monitoring device is separately positioned on left upright bar and right upright bar top, and every group of load applies and prison
It surveys device and respectively includes screw jack, strain gauge and stress display, screw jack is arranged in vertical supporting system
Top, the top of screw jack is provided with strain gauge, and the top of strain gauge is upper beam, and the stress passes
Sensor is electrically connected with stress display, and the top of the upper beam is provided with Universal level-metre.
2. wall displacement support device under the high load action of reinforced concrete shear wall structure according to claim 1,
It is characterized in：The upper beam, bottom end rail are respectively steel beam with box shape, and cross section is 155mm × 155mm, plate thickness 20mm.
3. wall displacement support device under the high load action of reinforced concrete shear wall structure according to claim 1,
It is characterized in：The left upright bar, right upright bar are respectively round steel pipe, and both ends solder up, round steel pipe outside diameter is 159mm, wall thickness
20mm。
4. wall displacement support device under the high load action of reinforced concrete shear wall structure according to claim 1,
It is characterized in：The screw jack is mechanical rocker-arm screw jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225950.2A CN108316669A (en) | 2018-03-19 | 2018-03-19 | Wall displacement support device under the high load action of reinforced concrete shear wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225950.2A CN108316669A (en) | 2018-03-19 | 2018-03-19 | Wall displacement support device under the high load action of reinforced concrete shear wall structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108316669A true CN108316669A (en) | 2018-07-24 |
Family
ID=62898406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810225950.2A Pending CN108316669A (en) | 2018-03-19 | 2018-03-19 | Wall displacement support device under the high load action of reinforced concrete shear wall structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108316669A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680979A (en) * | 2019-02-25 | 2019-04-26 | 中国建筑第八工程局有限公司 | The reinforced construction method of existing structure |
| CN110565977A (en) * | 2019-09-02 | 2019-12-13 | 上海建工七建集团有限公司 | Temporary reinforcing device and method for structural beam |
| CN112593720A (en) * | 2020-06-16 | 2021-04-02 | 山东筑峰建筑工程有限公司 | Shear wall replacement support system and application thereof |
| CN113279596A (en) * | 2021-05-06 | 2021-08-20 | 中铁建工集团有限公司 | Light partition wall slotting and repairing process |
| CN114319924A (en) * | 2021-12-31 | 2022-04-12 | 四川省第四建筑有限公司 | Method for reinforcing rear bonded steel of unloading column replacement shear wall |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010281089A (en) * | 2009-06-03 | 2010-12-16 | Kajima Corp | Jacking-down type demolition method and system for multi-story building |
| CN202324684U (en) * | 2011-11-14 | 2012-07-11 | 东北石油大学 | Electric adjustable support device for supporting beams in the process of demolishing walls |
| CN104499608A (en) * | 2014-12-19 | 2015-04-08 | 江苏鼎达建筑新技术有限公司 | Method for designing and constructing prestressed section steel reinforced shear wall |
| CN204282863U (en) * | 2014-10-31 | 2015-04-22 | 山东安誉建筑工程有限公司 | Concrete shear wall displacement support instrument |
| CN205348836U (en) * | 2016-01-22 | 2016-06-29 | 陕西省建筑科学研究院 | Shear force wall and floor hydraulic support device for concrete replacement |
| CN208267406U (en) * | 2018-03-19 | 2018-12-21 | 山东省建筑科学研究院 | Wall displacement support device under the high load action of reinforced concrete shear wall structure |
-
2018
- 2018-03-19 CN CN201810225950.2A patent/CN108316669A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010281089A (en) * | 2009-06-03 | 2010-12-16 | Kajima Corp | Jacking-down type demolition method and system for multi-story building |
| CN202324684U (en) * | 2011-11-14 | 2012-07-11 | 东北石油大学 | Electric adjustable support device for supporting beams in the process of demolishing walls |
| CN204282863U (en) * | 2014-10-31 | 2015-04-22 | 山东安誉建筑工程有限公司 | Concrete shear wall displacement support instrument |
| CN104499608A (en) * | 2014-12-19 | 2015-04-08 | 江苏鼎达建筑新技术有限公司 | Method for designing and constructing prestressed section steel reinforced shear wall |
| CN205348836U (en) * | 2016-01-22 | 2016-06-29 | 陕西省建筑科学研究院 | Shear force wall and floor hydraulic support device for concrete replacement |
| CN208267406U (en) * | 2018-03-19 | 2018-12-21 | 山东省建筑科学研究院 | Wall displacement support device under the high load action of reinforced concrete shear wall structure |
Non-Patent Citations (1)
| Title |
|---|
| 中国铁道科学研究院桥梁加固技术研究组, 北京：中国建材工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680979A (en) * | 2019-02-25 | 2019-04-26 | 中国建筑第八工程局有限公司 | The reinforced construction method of existing structure |
| CN109680979B (en) * | 2019-02-25 | 2021-08-10 | 中国建筑第八工程局有限公司 | Existing structure reinforcing construction method |
| CN110565977A (en) * | 2019-09-02 | 2019-12-13 | 上海建工七建集团有限公司 | Temporary reinforcing device and method for structural beam |
| CN112593720A (en) * | 2020-06-16 | 2021-04-02 | 山东筑峰建筑工程有限公司 | Shear wall replacement support system and application thereof |
| CN113279596A (en) * | 2021-05-06 | 2021-08-20 | 中铁建工集团有限公司 | Light partition wall slotting and repairing process |
| CN114319924A (en) * | 2021-12-31 | 2022-04-12 | 四川省第四建筑有限公司 | Method for reinforcing rear bonded steel of unloading column replacement shear wall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208267406U (en) | Wall displacement support device under the high load action of reinforced concrete shear wall structure | |
| CN108316669A (en) | Wall displacement support device under the high load action of reinforced concrete shear wall structure | |
| CN103628680B (en) | Large steel space truss hanging layer construction method | |
| CN107130720B (en) | PK prestressed concrete overlapped slab construction method | |
| CN206829606U (en) | Hang mould in a kind of tool-type toilet | |
| CN107119904A (en) | A kind of cantilevered structure truss combined support system | |
| CN105133487A (en) | Combined type bridge temporary support and construction method for rapidly building continuous beams by virtue of same | |
| CN109457814A (en) | Towering and major diameter building top cover construction method based on Bailey bracket structure | |
| CN106401169A (en) | Aluminum alloy template assembling system for building | |
| CN107152112A (en) | A kind of modularization Prefabricated stacking floor and its construction method for being used to drop plate region | |
| CN209976016U (en) | Combined steel formwork keel support with steel bar protection layer support | |
| CN209760872U (en) | Diagonal draw bar for supporting-free formwork | |
| CN110042962A (en) | Board connecting structure and its construction method drop | |
| CN109252448B (en) | Prepressing construction method of bridge tower column cross beam support | |
| CN207987777U (en) | A kind of high pier girder steel pushing tow support device | |
| CN206233573U (en) | A kind of beam die plate reinforcing device | |
| CN205035732U (en) | Interim support of combined type bridge | |
| CN210685148U (en) | Reinforced concrete combined prefabricated bottom plate | |
| CN207974555U (en) | A kind of building structure strengthening device | |
| CN209670329U (en) | A kind of multifunctional wall body formwork root positioning system | |
| CN206693476U (en) | A kind of marginal texture construction of Sloping roof structure | |
| CN207377118U (en) | Agent structure increases a layer aluminum alloy mould plate jacking apparatus | |
| CN208152557U (en) | Large-span girder and floor steel pipe type quick-disassembly structure | |
| CN213926135U (en) | Steel-concrete combined gravity dam | |
| CN110158478A (en) | Deck Concrete Pavement operation platform |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180724 |
|
| WD01 | Invention patent application deemed withdrawn after publication |