CN106245931A - The underpinning device of load bearing wall and construction method in brick mix structure - Google Patents
The underpinning device of load bearing wall and construction method in brick mix structure Download PDFInfo
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- CN106245931A CN106245931A CN201610874091.0A CN201610874091A CN106245931A CN 106245931 A CN106245931 A CN 106245931A CN 201610874091 A CN201610874091 A CN 201610874091A CN 106245931 A CN106245931 A CN 106245931A
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- load bearing
- bearing wall
- transform beams
- support column
- torn open
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- 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
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- Chemical Kinetics & Catalysis (AREA)
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses underpinning device and the construction method of load bearing wall in brick mix structure, this underpinning device includes two transform beams, connect shoulder beam and two support columns, two transform beams are respectively arranged at both sides before and after load bearing wall top to be torn open, and top is close to upper strata floor, connect shoulder beam between two transform beams, connect shoulder beam to be connected as a single entity by two transform beams, two support columns are positioned at the lower section at transform beams two ends, and two support columns are fixing with two side walls respectively is connected, transform beams, connect shoulder beam and collectively constitute built-in frame with support column, built-in frame and upper strata floor, collar tie beam and side wall form an entirety.The present invention has the advantage that the present invention uses built-in frame to change the transfer route of load compared to existing technology, it is ensured that upper load can transmit effectively, improves the bearing capacity of structure, safety and economy.
Description
Technical field
The present invention relates to engineering reinforcement technical field, the underpinning device of load bearing wall in a kind of brick mix structure
And construction method.
Background technology
Brick mix structure is when carrying out load bearing wall and removing, and the transfer route of upper load can change.Originally hold by waiting to tear open
The load that weight wall is transmitted can be delivered on side wall by collar tie beam, and collar tie beam belongs to non-structural element, and its bearing capacity is the most not enough,
Meanwhile, the load at collar tie beam two ends passes on side wall, causes side wall bearing capacity due to local compression to be difficult to meet requirement.On solving
State problem, it is necessary to torr wall crossbeam is set in load bearing wall upper end to be torn open and bears the load of upper floor, set up in beam two ends simultaneously and prop up
Hold post and undertake the load of beam transmission.
The wall-beam technology removing load bearing wall in existing brick mix structure mainly has one, the most first removes load bearing wall, arranges
Temporary support undertakes the load of upper floor, directly constructs transform beams in body of wall collar tie beam below or above, and at transform beams two ends
Lower section increase concrete support post newly, form coupled column with prior partial headwall, when the intensity of concrete, to reach 100% design strong
Temporary support is removed after degree.This method bears the load of upper floor by single strutbeam so that the depth of section of beam is relatively big, right
The headroom in house has a great impact, and the steel in temporary support is shored to be cast in inside concrete to remove and repeated to make simultaneously
With, expending steel material big, and operative can not admit of least bit carelessness, working security and economy are poor.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that in a kind of brick mix structure, load bearing wall underpins dress
Put and construction method, to ensure working security and the economy of structure.
The present invention is achieved by the following technical solutions:
The underpinning device of load bearing wall in brick mix structure, described underpinning device is used for load bearing wall to be torn open, described in load bearing wall to be torn open
The body of wall at two ends is side wall, described in the floor on load bearing wall top to be torn open be upper strata floor, the floor of bottom be lower floor's floor, described
Being provided with collar tie beam between upper strata floor and load bearing wall to be torn open, described underpinning device includes two transform beams, connection shoulder beam and two
Hold post, said two transform beams be respectively arranged at described in before and after load bearing wall top to be torn open both sides, and said two underpins back
End is close to described upper strata floor, and described connection shoulder beam is between said two transform beams, and the described shoulder beam that connects is by said two
Transform beams is connected as a single entity, and said two support column is positioned at the lower section at transform beams two ends, and said two support column respectively with two
Side wall is fixing to be connected, and described transform beams, connection shoulder beam and support column collectively constitute built-in frame, described built-in frame with described on
Floor plate, collar tie beam and side wall form an entirety.
By connecting, reinforcing bar and described corresponding side wall are fixing to be connected described support column.
The described shoulder beam that connects is provided with multiple, and multiple shoulder beams that connect are arranged along interval on the length direction of described transform beams.
The plurality of connection takes in beam, and adjacent two spacing connecting shoulder beams are not more than 1 meter.
Described support column is reinforced column, and described transform beams and connection shoulder beam are reinforced beam.
The invention also discloses the underpinning construction method of load bearing wall in brick mix structure, described construction method is based on institute in such as power
The underpinning device of load bearing wall in the brick mix structure stated, described construction method is carried out the most successively:
(1) connect the anchoring of reinforcing bar: dig out two support column receiving holes at two ends, described load bearing wall left and right to be torn open, retain institute
State the body of wall steel tie within load bearing wall to be torn open, dig out in the range of being then positioned at described support column receiving hole on two side walls
For inserting the multiple blind holes connecting reinforcing bar, in the plurality of blind hole, pre-buried connection reinforcing bar, pours into expansive mortar and anchors；
(2) construction of support column: colligation support column reinforcing bar support column mould is set in two support column receiving holes respectively
Plate, then casting concrete in described support column template, with described support column after the concrete final set in column template to be supported
Reinforcing bar collectively forms described support column；
(3) transform beams and the construction of connection shoulder beam: connection shoulder beam receiving is dug out in the first upper end at described load bearing wall to be torn open
Hole, described connection shoulder beam receiving hole top end face extends to the bottom face of described collar tie beam, pre-buried in described connection shoulder beam receiving hole
Connecting shoulder beam steel, then before and after described load bearing wall top to be torn open, the position colligation of both sides correspondence transform beams underpins joist steel
Muscle, arranges transform beams template in described transform beams reinforcing bar periphery, and then casting concrete in described transform beams template, waits to underpin
After concrete final set in beam forms with described transform beams reinforcing bar and be connected shoulder beam steel collectively form transform beams and connect shoulder beam；
(4) remove described in load bearing wall to be torn open: from described transform beams bottom surface start to remove downwards described in load bearing wall to be torn open.
Described step (1) neutralizes in described step (3), and described support column receiving hole, blind hole and connection shoulder beam receiving hole are equal
Use the boring of machine drilling equipment.
In described step (1), described support column receiving hole upper end extend to a skin brick below the back of described transform beams, under
End extends to described lower floor plate top surface.
In described step (3), after digging out connection shoulder beam receiving hole, before and after load bearing wall top to be torn open, both sides are described
In the region that transform beams covers, reject wall plastering and vertical and horizontal brickwork joint is inwardly picked deep 10mm.
In described step (4), after described transform beams intensity reaches 100% design strength, then load-bearing to be torn open described in dismounting
Wall.
The present invention has the advantage that compared to existing technology
1, the underpinning device of load bearing wall in the brick mix structure that the present invention provides, the setting of multiple connections shoulder beam not only ensure that
Effective connection between double transform beams, also plays the effect of Transfer of Shear, is takeed on beam by transform beams, collar tie beam, connection and is treated simultaneously
The combination beam tearing the formation of load bearing wall upper end open can transmit upper load effectively.
2, the underpinning device of load bearing wall in the brick mix structure that the present invention provides, support column is corresponding with described by connecting reinforcing bar
Side wall fixing connect so that support column forms coupled column with corresponding side wall, improves the bearing capacity due to local compression of side wall and steady
Qualitative.
3, the underpinning device of load bearing wall in the brick mix structure that the present invention provides, its transform beams, connection shoulder beam and support column group
Effectively being connected of built-in frame and upper strata floor, collar tie beam and the side wall become so that the power transmission of structure clearly, simultaneously built-in frame and
Upper strata floor, collar tie beam and side wall are formed a whole by the drawknot of reinforcing bar and the cohesive force of concrete, jointly bear top lotus
Carry.
4, the underpinning construction method of load bearing wall in the brick mix structure that the present invention provides so that body of wall to be removed can a straight hair
The effect of waving is until transform beams and connect shoulder beam and construct and remove, it is to avoid the safety of load bearing wall dismounting upper back structure
Potential problem, and need not arrange temporary support, it is to avoid the waste of steel.
5, the underpinning construction method of load bearing wall in the brick mix structure that the present invention provides, it uses machine drilling equipment to keep away
Exempt from the damage to original structure.
6, the underpinning construction method of load bearing wall in the brick mix structure that the present invention provides, its reject wall plastering and to vertical and
Horizontal brickwork joint inwardly picks deep 10mm, is effectively guaranteed transform beams, connects the effective of shoulder beam and collar tie beam and load bearing wall upper end to be torn open
Bonding
7, the underpinning construction method of load bearing wall in the brick mix structure that the present invention provides, sets when transform beams intensity reaches 100%
After meter intensity, then load bearing wall to be torn open described in dismounting can be effectively prevented from the potential safety hazard of structure, increases peace during structure construction
Quan Xing.
Accompanying drawing explanation
Fig. 1 is the front view of the underpinning device of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the B-B profile of Fig. 1.
Fig. 4 is the C-C profile of Fig. 2.
Fig. 5 is the D-D profile of Fig. 4.
Label in figure: 1 is lower floor's floor, 2 is side wall, and 3 is support column, and 4 is load bearing wall to be torn open, and 5 for connecting reinforcing bar, and 6 are
Connecting and take on beam, 7 is upper strata floor, and 8 is collar tie beam, and 9 is transform beams, and 10 is transform beams reinforcing bar, and 11 for connecting shoulder beam steel, and 12 for propping up
Dagger reinforcing bar.
Detailed description of the invention
Elaborating embodiments of the invention below, the present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following enforcement
Example.
See Fig. 1 to Fig. 5, the underpinning device of load bearing wall in brick mix structure, including two transform beams 9, connect shoulder beam 6 and two
Individual support column 3.Two transform beams 9 are arranged at both sides before and after load bearing wall 4 top to be torn open, and two transform beams 9 tops are close to
Floor plate 7, it is multiple for connecting shoulder beam 6, between two transform beams 9, and sets along being spaced on the length direction of transform beams 9
Put, but adjacent two spacing connecting shoulder beam 6 are not more than 1 meter, connect shoulder beam 6 and two transform beams 9 are linked together, simultaneously
Transform beams 9, collar tie beam 8, connection shoulder beam 6 and load bearing wall to be torn open 4 upper end can form combination beam, and this combination beam can transmit effectively
Portion's load；Two support columns 3 are positioned at the lower section at transform beams about 9 two ends, and two support columns 3 by connect reinforcing bar 5 respectively with
Corresponding side wall 2 is fixing to be connected, and transform beams 9, connection shoulder beam 6 collectively constitute built-in frame, built-in frame and upper strata with support column 3
Floor 7, collar tie beam 8 and side wall 2 form an entirety.Support column 3 is reinforced column, and transform beams 9 and connection shoulder beam 6 are reinforcing bar
Beams of concrete.
The present embodiment also discloses the underpinning construction method of load bearing wall in a kind of brick mix structure, and this construction method is based on as above
Brick mix structure in the underpinning device of load bearing wall, construction method is carried out the most successively:
(1) anchoring of reinforcing bar is connected: first cutting load bearing wall about 4 two ends to be torn open along skin, body of wall is torn open from lower floor's floor 1 end face
Supreme transform beams 9 back, with next skin brick, forms two support column receiving holes, the horse tooth trough of load bearing wall 4 to be torn open and body of wall drawknot
Reinforcing bar retains, and is then positioned in the range of support column receiving hole on two side walls 2, bores with drilling machine solid matter from top to bottom and uses
In inserting the multiple blind holes connecting reinforcing bar 5, and clean up, this ensure that the effective adhesive that has connecting reinforcing bar 5 with side wall 2, blind
The shape in hole and size should meet related specifications requirement, more pre-buried connection reinforcing bar 5 in multiple blind holes, pour into expansive mortar and carry out
Anchoring, expansive mortar is to add a certain amount of extender in cement mortar, and it is a kind of functional mortar, to compensate cement
The contraction of mortar, ensure that the effective of support column 3 and corresponding side wall 2 by the blind hole anchor connection reinforcing bar 5 that pours into of expansive mortar
Connect.
(2) construction of support column 3: first pre-buried support column 12 reinforcing bar of difference, support column steel in two support column receiving holes
12 upper and lower sides of muscle should use bar planting to be connected with corresponding collar tie beam 8, and bar planting should meet related specifications requirement, secondly, two supportings
Support column template, then casting concrete in support column template it is respectively provided with, mixing in column template to be supported in post receiving hole
Collectively forming support column 3 with support column reinforcing bar 12 after the final set of solidifying soil, support column 3 is arranged at below transform beams 9 two ends, effectively holds
Having carried on a shoulder pole the load that transform beams 9 transmission comes, meanwhile, by connecting, reinforcing bar 5 is fixing with corresponding side wall 2 to be connected support column 3 so that
Hold post 3 and form coupled column with corresponding side wall 2, improve bearing capacity due to local compression and the stability of side wall 2；
(3) transform beams 9 and the construction of connection shoulder beam 6: the first upper end at load bearing wall 4 to be torn open gets out connection shoulder beam receiving
Hole, for avoiding damaging collar tie beam 8 in construction, should use machine drilling equipment, connection shoulder beam 6, receiving hole top end face to extend to collar tie beam 8
Bottom face, simultaneously should in the region that both sides are covered by transform beams 9 before and after load bearing wall 4 top to be torn open, reject wall plastering and
Vertical and horizontal brickwork joint is inwardly picked deep 10mm, which ensure that transform beams 9, connect on shoulder beam 6 and collar tie beam 8 and load bearing wall to be torn open 4
That holds has effective adhesive.Secondly, within connecting shoulder beam receiving hole, pre-buried connection takes on beam steel 11, before load bearing wall 4 top to be torn open
The position colligation transform beams reinforcing bar 10 of rear both sides correspondence transform beams 9, when carrying out reinforcing bar binding, connecting shoulder beam steel 11 should stretch into
In transform beams 9, transform beams reinforcing bar 10 should stretch in support column 3, and built-in length all should meet code requirement；Then joist steel is being underpined
Muscle 10 periphery arranges transform beams template, and transform beams template is directly supported on the load bearing wall to be torn open 4 under joist, to transform beams template
Interior casting concrete, after the concrete final set in transform beams template with transform beams reinforcing bar 10 and be connected shoulder the common structure of beam steel 11
Becoming transform beams 9 and connect shoulder beam 6, transform beams 9, connection shoulder beam 6 form built-in frame, built-in frame and upper floor with support column 3
Plate 7, collar tie beam 8 and side wall 2 are formed a whole by the drawknot of reinforcing bar and the cohesive force of concrete so that the power transmission of structure is bright
Really, upper load is jointly born.
(4) load bearing wall 4 to be torn open is removed: the dismounting of load bearing wall 4 to be torn open must reach 100% design in the intensity of transform beams 9
Just can carry out after intensity, bore solid matter hole with drilling machine along body periphery to be demolished walls, tear open the most from top to bottom, need when holing and dig wall
Larger vibration to be avoided, in order to avoid impacting structural safety.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Any amendment, equivalent and the improvement etc. made within principle, should be included within the scope of the present invention.
Claims (10)
1. the underpinning device of load bearing wall in brick mix structure, described underpinning device is used for load bearing wall to be torn open, described in load bearing wall two to be torn open
The body of wall of end is side wall, described in the floor on load bearing wall top to be torn open be upper strata floor, the floor of bottom be lower floor's floor, described on
It is provided with collar tie beam between floor plate and load bearing wall to be torn open, it is characterised in that: described underpinning device includes two transform beams, connects shoulder beam
And two support columns, said two transform beams be respectively arranged at described in before and after load bearing wall top to be torn open both sides, and said two
Described upper strata floor is close on transform beams top, and described connection shoulder beam is between said two transform beams, and the described shoulder beam that connects will
Said two transform beams is connected as a single entity, and said two support column is positioned at the lower section at transform beams two ends, and said two support column divides
Not fixing with two side walls and be connected, described transform beams, connection shoulder beam collectively constitute built-in frame, described built-in frame with support column
An entirety is formed with described upper strata floor, collar tie beam and side wall.
2. the underpinning device of load bearing wall in brick mix structure as claimed in claim 1, it is characterised in that: described support column is by even
Connect reinforcing bar connection fixing with described corresponding side wall.
3. the underpinning device of load bearing wall in brick mix structure as claimed in claim 1, it is characterised in that: the described shoulder beam that connects is provided with
Multiple, multiple shoulder beams that connect are arranged along interval on the length direction of described transform beams.
4. the underpinning device of load bearing wall in brick mix structure as claimed in claim 3, it is characterised in that: the plurality of connection takes on beam
In, adjacent two spacing connecting shoulder beam are not more than 1 meter.
5. the underpinning device of load bearing wall in brick mix structure as claimed in claim 1, it is characterised in that: described support column is reinforcing bar
Concrete column, described transform beams and connection shoulder beam are reinforced beam.
6. the underpinning construction method of load bearing wall in brick mix structure, it is characterised in that: described construction method based on as claim 1 to
The underpinning device of load bearing wall in brick mix structure described in 5 any one, described construction method is carried out the most successively:
(1) anchoring of reinforcing bar is connected: dig out two support column receiving holes at two ends, described load bearing wall left and right to be torn open, treat described in reservation
Tear the body of wall steel tie within load bearing wall open, dig out in the range of being then positioned at described support column receiving hole on two side walls for
Inserting the multiple blind holes connecting reinforcing bar, in the plurality of blind hole, pre-buried connection reinforcing bar, pours into expansive mortar and anchors；
(2) construction of support column: colligation support column reinforcing bar support column template is set, so in two support column receiving holes respectively
Casting concrete in backward described support column template, after the concrete final set in column template to be supported with described support column reinforcing bar altogether
With constituting described support column；
(3) transform beams and the construction of connection shoulder beam: connection shoulder beam receiving hole, institute are dug out in the first upper end at described load bearing wall to be torn open
State connection shoulder beam receiving hole top end face and extend to the bottom face of described collar tie beam, take on pre-buried connection in described connection shoulder beam receiving hole
Beam steel, then the position colligation transform beams reinforcing bar of both sides correspondence transform beams before and after described load bearing wall top to be torn open, in institute
Stating transform beams reinforcing bar periphery and arrange transform beams template, then casting concrete in described transform beams template, treats transform beams template
In concrete final set after with described transform beams reinforcing bar and is connected shoulder beam steel collectively form transform beams and connection take on beam；
(4) remove described in load bearing wall to be torn open: from described transform beams bottom surface start to remove downwards described in load bearing wall to be torn open.
7. the underpinning construction method of load bearing wall in brick mix structure as claimed in claim 6, it is characterised in that: described step (1)
Neutralizing in described step (3), described support column receiving hole, blind hole and connection shoulder beam receiving hole all use machine drilling equipment to bore
Hole.
8. the underpinning construction method of load bearing wall in brick mix structure as claimed in claim 6, it is characterised in that: described step (1)
In, described support column receiving hole upper end extends to a skin brick, lower end below the back of described transform beams and extends to described lower floor
Plate top surface.
9. the underpinning construction method of load bearing wall in brick mix structure as claimed in claim 6, it is characterised in that: described step (3)
In, after digging out connection shoulder beam receiving hole, in the region that both sides are covered by described transform beams before and after load bearing wall top to be torn open,
Reject wall plastering and vertical and horizontal brickwork joint is inwardly picked deep 10mm.
10. the underpinning construction method of load bearing wall in brick mix structure as claimed in claim 6, it is characterised in that: described step (4)
In, after described transform beams intensity reaches 100% design strength, then load bearing wall to be torn open described in dismounting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874091.0A CN106245931A (en) | 2016-09-30 | 2016-09-30 | The underpinning device of load bearing wall and construction method in brick mix structure |
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| CN201610874091.0A CN106245931A (en) | 2016-09-30 | 2016-09-30 | The underpinning device of load bearing wall and construction method in brick mix structure |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401232A (en) * | 2017-08-22 | 2017-11-28 | 天津联鉴建筑质量鉴定检测有限公司 | A kind of underpinning structure and construction method for replacing underproof shear wall concrete |
| CN109441134A (en) * | 2018-11-27 | 2019-03-08 | 大连久鼎特种建筑工程有限公司 | Building brick mix structure underpins into frame structure |
| CN109667295A (en) * | 2018-11-23 | 2019-04-23 | 河海大学 | A kind of existing building base lower portion tunneling pin-connected panel underpinning structure and its construction method |
| CN110230410A (en) * | 2019-06-20 | 2019-09-13 | 同济大学建筑设计研究院(集团)有限公司 | A kind of dual beam configuration underpins node |
| CN110644803A (en) * | 2019-09-26 | 2020-01-03 | 南充职业技术学院 | Method for underpinning building brick-concrete structure into frame structure |
| CN110735539A (en) * | 2019-10-28 | 2020-01-31 | 上海必立结构设计事务所有限公司 | shoulder beam type reinforcing structure |
| CN111677322A (en) * | 2020-06-12 | 2020-09-18 | 贵州中建建筑科研设计院有限公司 | Method and structure for tension connection and reinforcement between underpinned concrete column and original masonry wall |
| CN111962901A (en) * | 2020-08-14 | 2020-11-20 | 山东金城建设有限公司 | Existing masonry structure reconstruction construction method |
| CN112854794A (en) * | 2019-11-28 | 2021-05-28 | 杭州固力建筑工程有限公司 | Underpinning and reinforcing method for transformed bearing wall of brick-concrete structure house |
| CN114635586A (en) * | 2022-02-22 | 2022-06-17 | 中国华冶科工集团有限公司 | Brick-concrete structure bearing wall dismantling method and supporting frame |
| WO2024138920A1 (en) * | 2022-12-26 | 2024-07-04 | 上海建工一建集团有限公司 | Existing house wall beam replacement structure and construction method therefor |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401232A (en) * | 2017-08-22 | 2017-11-28 | 天津联鉴建筑质量鉴定检测有限公司 | A kind of underpinning structure and construction method for replacing underproof shear wall concrete |
| CN109667295A (en) * | 2018-11-23 | 2019-04-23 | 河海大学 | A kind of existing building base lower portion tunneling pin-connected panel underpinning structure and its construction method |
| CN109667295B (en) * | 2018-11-23 | 2020-11-10 | 河海大学 | Underground excavation assembly type underpinning structure at lower part of existing building base and construction method thereof |
| CN109441134A (en) * | 2018-11-27 | 2019-03-08 | 大连久鼎特种建筑工程有限公司 | Building brick mix structure underpins into frame structure |
| CN110230410A (en) * | 2019-06-20 | 2019-09-13 | 同济大学建筑设计研究院(集团)有限公司 | A kind of dual beam configuration underpins node |
| CN110230410B (en) * | 2019-06-20 | 2024-03-19 | 同济大学建筑设计研究院(集团)有限公司 | Double-column structure underpinning node |
| CN110644803A (en) * | 2019-09-26 | 2020-01-03 | 南充职业技术学院 | Method for underpinning building brick-concrete structure into frame structure |
| CN110735539A (en) * | 2019-10-28 | 2020-01-31 | 上海必立结构设计事务所有限公司 | shoulder beam type reinforcing structure |
| CN112854794A (en) * | 2019-11-28 | 2021-05-28 | 杭州固力建筑工程有限公司 | Underpinning and reinforcing method for transformed bearing wall of brick-concrete structure house |
| CN111677322A (en) * | 2020-06-12 | 2020-09-18 | 贵州中建建筑科研设计院有限公司 | Method and structure for tension connection and reinforcement between underpinned concrete column and original masonry wall |
| CN111962901A (en) * | 2020-08-14 | 2020-11-20 | 山东金城建设有限公司 | Existing masonry structure reconstruction construction method |
| CN114635586A (en) * | 2022-02-22 | 2022-06-17 | 中国华冶科工集团有限公司 | Brick-concrete structure bearing wall dismantling method and supporting frame |
| CN114635586B (en) * | 2022-02-22 | 2023-12-01 | 中国华冶科工集团有限公司 | Method for dismantling bearing wall of brick-concrete structure and supporting frame |
| WO2024138920A1 (en) * | 2022-12-26 | 2024-07-04 | 上海建工一建集团有限公司 | Existing house wall beam replacement structure and construction method therefor |
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Application publication date: 20161221 |