CN114319930B - Building envelope below bearing wall and construction method thereof - Google Patents
Building envelope below bearing wall and construction method thereof Download PDFInfo
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- CN114319930B CN114319930B CN202111644742.4A CN202111644742A CN114319930B CN 114319930 B CN114319930 B CN 114319930B CN 202111644742 A CN202111644742 A CN 202111644742A CN 114319930 B CN114319930 B CN 114319930B
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- underpinning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention provides an enclosure structure below a bearing wall and a construction method thereof, wherein the enclosure structure is formed by wall clamping beams arranged on two sides of the top of the bearing wall to be dismantled; the wall penetrating beam is connected between the wall clamping beams; the underpinning ground beam is arranged at the lower part of the ground; and the middle flat column is connected between the wall clamping beam and the lower underpinning ground beam. The bearing platform is arranged on the ground; and a underpinning column is arranged at the position of the dismantled bearing wall between the underpinning ground beams at the lower part, the top of the underpinning column is connected with the wall clamping beam, and the bottom of the underpinning column is connected with the bearing platform. The invention can ensure that the position of the newly added building envelope is unchanged, and the original building structure is required to be subjected to underpinning and dismantling, so that the force transmission path of the original structure is changed, and the safety of the structure is ensured. In the development process of the underground space of the existing building, the invention utilizes the newly added enclosure structure as the foundation for underpinning the original building structure, thereby achieving the purposes of increasing the internal space of the building and controlling the deformation of the structure.
Description
Technical Field
The invention relates to an enclosure structure below a bearing wall and a construction method thereof.
Background
When an underground space is newly added in an existing building, the problem that the newly added building envelope can conflict with the original building structure in position often exists.
Disclosure of Invention
The invention aims to provide an enclosure structure below a bearing wall and a construction method thereof.
In order to solve the above problems, the present invention provides an enclosure structure below a bearing wall, including:
the wall clamping beams are arranged on two sides of the top of the bearing wall to be dismantled;
the wall penetrating beam is connected between the wall clamping beams;
the underpinning ground beam is arranged at the lower part of the ground;
and the middle flat column is connected between the wall clamping beam and the lower underpinning ground beam.
In an embodiment of the enclosure structure under the bearing wall of the present invention, the enclosure structure further includes: and the steel pipe static pressure pile is arranged at the lower part of the lower underpinning ground beam.
In an embodiment of the enclosure structure under the bearing wall of the present invention, the enclosure structure further includes:
the bearing platform is arranged on the ground;
and a underpinning column is arranged at the position of the dismantled bearing wall between the underpinning ground beams at the lower part, the top of the underpinning column is connected with the wall clamping beam, and the bottom of the underpinning column is connected with the bearing platform.
In an embodiment of the enclosure structure under the bearing wall of the present invention, the enclosure structure further includes:
and the fender post is arranged below the bearing platform.
In an embodiment of the enclosure structure below the bearing wall, the top of the underpinning column is connected with the wall clamping beam through a bracket.
In an embodiment of the enclosure structure below the bearing wall, two ends of the wall clamping beam are also connected with beam pads.
In an embodiment of the enclosure structure below the bearing wall, a reserved section wall body of the bearing wall is arranged on the side close to the beam pad.
In an embodiment of the enclosure structure below the bearing wall, the top of the bearing wall is connected with an original structural beam.
And the upper parts of the wall clamping beam and the original structure beam are connected with an original structure floor slab.
According to another aspect of the present invention, there is also provided a construction method of an enclosure under a load-bearing wall, using the enclosure under a load-bearing wall described in any one of the above, the method including:
the construction of the wall clamping beam and the wall penetrating beam is firstly carried out during the first underpinning, so that when the local bearing wall is dismantled subsequently, the upper structural load of the dismantling section is completed for one-time transfer path conversion;
then carrying out lower underpinning ground beam and middle flat column support construction to restore and dismantle the upper load transmission path of the section, dismantling the bearing wall between the middle flat columns after the first underpinning is completed, and transferring the upper load of the dismantled section to the middle flat column support and the lower underpinning ground beam through the wall clamping beam;
after the bearing wall is dismantled, the construction of the guard piles is carried out, the construction of the bearing platform and the underpinning column is carried out on the guard piles, the secondary underpinning is realized, and the guard piles and the bearing wall are eccentric; the connection area between the top of the underpinning column and the wall clamping beam is made into a bracket form, and the bracket is propped against the bottoms of the wall clamping beams at two sides so as to cover the wall clamping beams at two sides;
and after secondary underpinning is finished, the middle flat column and the underpinning floor beam can be removed, the upper structural load is transferred to the underpinning bracket column through the wall clamping beam, and finally, the fender post construction of the position of the underpinning floor beam after the secondary underpinning can be performed, so that staggered construction is finished.
Compared with the prior art, the invention has the advantages that the wall clamping beams are arranged on the two sides of the top of the bearing wall to be dismantled; the wall penetrating beam is connected between the wall clamping beams; the underpinning ground beam is arranged at the lower part of the ground; and the middle flat column is connected between the wall clamping beam and the lower underpinning ground beam. The bearing platform is arranged on the ground; and a underpinning column for the position of the dismantled bearing wall between the underpinning ground beams 6 at the lower part is arranged, the top of the underpinning column is connected with the wall clamping beam, and the bottom of the underpinning column is connected with the bearing platform. The invention can ensure that the position of the newly added building envelope is unchanged, and the original building structure is required to be subjected to underpinning and dismantling, so that the force transmission path of the original structure is changed, and the safety of the structure is ensured. In the development process of the underground space of the existing building, the invention utilizes the newly added enclosure structure as the foundation for underpinning the original building structure, thereby achieving the purposes of increasing the internal space of the building and controlling the deformation of the structure.
Drawings
FIG. 1 is a schematic plan view of an enclosure under a load bearing wall according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of an enclosure under a load bearing wall according to an embodiment of the invention;
FIG. 3 is a flow chart of the construction of an enclosure under a load bearing wall according to an embodiment of the invention;
in the figure: 1-beam pad; 2-wall-clamping beam; 3-guard piles; 4-steel pipe static pressure pile; 5-underpinning the bracket column; 6-underpinning the ground beam; 7-bearing wall to be dismantled; 8-flat column; 9-original structural beam; 10-wall penetrating beam; 11-a platform; 12-reserving section wall; 13-original structure floor slab.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the present invention provides an enclosure under a load-bearing wall, including:
the wall clamping beams 2 are arranged on two sides of the top of the bearing wall 7 to be dismantled;
a wall-passing beam 10 connected between the wall-clamping beams 2;
a underpinning ground beam 6 arranged at the lower part of the ground;
and the middle flat column 8 is connected between the wall clamping beam 2 and the lower underpinning floor beam 6.
The invention can ensure that the position of the newly added building envelope is unchanged, and the original building structure is required to be subjected to underpinning and dismantling, so that the force transmission path of the original structure is changed, and the safety of the structure is ensured. In the development process of the underground space of the existing building, the invention utilizes the newly added enclosure structure as the foundation for underpinning the original building structure, thereby achieving the purposes of increasing the internal space of the building and controlling the deformation of the structure.
In an embodiment of the enclosure structure under the bearing wall of the present invention, the enclosure structure further includes: and the steel pipe static pressure pile 4 is arranged at the lower part of the lower underpinning ground beam 6.
In an embodiment of the enclosure structure under the bearing wall of the present invention, the enclosure structure further includes:
a bearing platform 11 arranged on the ground;
and a underpinning column 5 for setting the position of the dismantled bearing wall between the underpinning ground beams 6 at the lower part is arranged, the top of the underpinning column 5 is connected with the wall clamping beam 2, and the bottom of the underpinning column 5 is connected with the bearing platform 11.
In an embodiment of the enclosure structure under the bearing wall of the present invention, the enclosure structure further includes:
and the fender post 3 is arranged below the bearing platform 11.
In an embodiment of the enclosure structure below the bearing wall, the top of the underpinning column 5 is connected with the wall clamping beam 2 through a bracket.
In an embodiment of the enclosure structure below the bearing wall, two ends of the wall clamping beam 2 are also connected with beam pads 1.
In an embodiment of the enclosure structure under the bearing wall, the side close to the beam pad 1 is a reserved section wall 12 of the bearing wall.
In an embodiment of the enclosure structure below the bearing wall, the top of the bearing wall 7 is connected with an original structural beam 9.
In an embodiment of the enclosure structure below the bearing wall, the upper parts of the wall clamping beam 2 and the original structure beam 9 are connected with an original structure floor 13.
According to another aspect of the present invention, there is also provided a construction method of an enclosure under a load-bearing wall, including:
step S1, firstly, constructing a wall clamping beam 2 and a wall penetrating beam 10 during primary underpinning, so that when a local bearing wall is dismantled subsequently, the upper structural load of the dismantled section is converted into a primary force transmission path;
s2, carrying out support construction on the lower underpinning ground beams 6 and the middle flat columns 8 so as to restore and dismantle an upper load transmission path of the section, dismantling the bearing walls 7 between the middle flat columns 8 after the primary underpinning is completed, and transferring the upper load of the dismantled section to the middle flat columns 8 to support and lower underpinning ground beams 6 through the wall clamping beams 2;
s3, after the bearing wall is dismantled, the construction of the guard piles 3 is carried out, the construction of the bearing platform 11 and the underpinning columns 5 is carried out on the guard piles 3, secondary underpinning is realized, and the guard piles and the bearing wall are eccentric; the connection area between the top of the underpinning column 5 and the wall clamping beam 2 is made into a bracket form, and the bracket is propped against the bottoms of the wall clamping beams at two sides so as to cover the wall clamping beams 2 at two sides;
and S4, after secondary underpinning is finished, the middle flat column 8 and the underpinning floor beam 6 can be dismantled, the upper structural load is transferred to the underpinning bracket column 5 through the wall clamping beam 2, and finally, the fender pile construction at the position of the dismantled underpinning floor beam 6 can be carried out, so that staggered construction is finished.
Preferably, in the whole staggered construction process, settlement and crack monitoring points are arranged on the peripheral wall body of the bearing wall to be dismantled, and the whole process monitoring is implemented.
In this embodiment, the method performs staggered construction on the underground fender pile and the upper building structure, and the overall sequence is underpinning construction, enclosure construction, underpinning construction and enclosure construction.
The invention relates to a two-time underpinning process, wherein a newly added underpinning land beam is used as a temporary foundation for the first underpinning and a newly added guard pile is used as a foundation for the second underpinning;
specifically, the construction flow of the invention can be as follows: :
1. before construction, setting settlement and crack monitoring points on the wall body around the bearing wall to be dismantled, and implementing staggered construction whole process monitoring;
2. newly-built wall clamping beams are arranged at two sides of the load-bearing wall to be underpinned and removed, through-wall beams are arranged at intervals along the length direction, the wall clamping beams are positioned at the top of the load-bearing wall and at the lower part of a beam plate 13 of the connecting structure, and beam pads 1 are arranged at the end parts of the wall clamping beams;
3. removing a local small-range bearing wall section after the strength of the wall clamping beam meets the requirement, adding a temporary underpinning ground beam as a temporary foundation, arranging a steel pipe static pressure pile under the underpinning ground beam according to the load size of an upper structure and the bearing capacity of a foundation, and increasing the bearing capacity of the foundation, wherein the position of the steel pipe pile needs to avoid the guard pile by a certain distance;
4. newly adding a flat column on the underpinning floor beam to serve as a temporary vertical support between the wall clamping beam and the underpinning floor beam;
5. removing the bearing wall and the foundation under the wall in the underpinning range after the strength of the flat column meets the requirement;
6. performing fender pile construction for removing an impact area of the flat column;
7. after the strength of the guard piles meets the requirement, carrying out bearing platform and underpinning column construction, wherein the newly added guard piles are eccentric with the original structure bearing wall, and the tops of the underpinning columns are provided with corbels;
8. removing the flat column and the underpinning floor beam after the intensity of the underpinning column meets the requirement;
9. and carrying out construction of the guard piles below the flat columns.
The staggered construction structure level method of the invention has the following characteristics:
1. the newly added underground space of the existing building, the guard piles can be used as bearing structures, and the same pile body realizes two functions;
2. the underpinning ground beam is used as a temporary underpinning foundation, and can be reinforced by adding the steel pipe static pressure pile when the bearing capacity of the foundation does not meet the load of the upper structure.
3. The bearing wall in the range of the influence guard pile is removed after underpinning, and the increase of the inner space of the building can be realized on the premise of ensuring the safety of the structure.
4. The method for realizing the underpinning of the upper structure by staggered construction is flexible, reserves space for later construction, and can recover the dismantled bearing wall after the enclosure structure and the underground structure are completed.
The details of each system embodiment of the present invention may be specifically referred to the corresponding parts of each method embodiment, and will not be described herein.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (2)
1. An enclosure below a load bearing wall, comprising:
the wall clamping beams are arranged on two sides of the top of the bearing wall to be dismantled;
the wall penetrating beam is connected between the wall clamping beams;
the underpinning ground beam is arranged at the lower part of the ground;
the middle flat column is connected between the wall clamping beam and the lower underpinning ground beam;
further comprises: the steel pipe static pressure pile is arranged at the lower part of the lower underpinning ground beam;
the bearing platform is arranged on the ground;
a underpinning column is arranged at the position of the dismantled bearing wall between the underpinning ground beams at the lower part, the top of the underpinning column is connected with the wall clamping beam, and the bottom of the underpinning column is connected with the bearing platform;
the guard piles are arranged below the bearing platform;
the top of the underpinning column is connected with the wall clamping beam through a bracket;
the two ends of the wall clamping beam are also connected with beam pads;
a reserved section wall body which is close to the beam pad side and is a bearing wall;
the top of the bearing wall is connected with an original structural beam;
and the upper parts of the wall clamping beam and the original structure beam are connected with an original structure floor slab.
2. A method of constructing an enclosure under a load bearing wall using the enclosure under a load bearing wall of claim 1, the method comprising:
the construction of the wall clamping beam and the wall penetrating beam is firstly carried out during the first underpinning, so that when the local bearing wall is dismantled subsequently, the upper structural load of the dismantling section is completed for one-time transfer path conversion;
then carrying out lower underpinning ground beam and middle flat column support construction to restore and dismantle the upper load transmission path of the section, dismantling the bearing wall between the middle flat columns after the first underpinning is completed, and transferring the upper load of the dismantled section to the middle flat column support and the lower underpinning ground beam through the wall clamping beam;
after the bearing wall is dismantled, the construction of the guard piles is carried out, the construction of the bearing platform and the underpinning column is carried out on the guard piles, the secondary underpinning is realized, and the guard piles and the bearing wall are eccentric; the connection area between the top of the underpinning column and the wall clamping beam is made into a bracket form, and the bracket is propped against the bottoms of the wall clamping beams at two sides so as to cover the wall clamping beams at two sides;
and after secondary underpinning is finished, the middle flat column and the underpinning floor beam can be removed, the upper structural load is transferred to the underpinning bracket column through the wall clamping beam, and finally, the fender post construction of the position of the underpinning floor beam after the secondary underpinning can be performed, so that staggered construction is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111644742.4A CN114319930B (en) | 2021-12-30 | 2021-12-30 | Building envelope below bearing wall and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111644742.4A CN114319930B (en) | 2021-12-30 | 2021-12-30 | Building envelope below bearing wall and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114319930A CN114319930A (en) | 2022-04-12 |
| CN114319930B true CN114319930B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111644742.4A Active CN114319930B (en) | 2021-12-30 | 2021-12-30 | Building envelope below bearing wall and construction method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429819A (en) * | 2007-11-07 | 2009-05-13 | 上海天演建筑物移位工程有限公司 | Wall and column underpinning method |
| CN109024662A (en) * | 2018-07-19 | 2018-12-18 | 深圳市工勘岩土集团有限公司 | Method of the anchor pile underpinning without basement building underground space increasing layer |
| CN109610874A (en) * | 2019-01-18 | 2019-04-12 | 央固工程科技（上海）有限公司 | Increase the basement and its construction process built inside existing workshop |
| CN209509556U (en) * | 2018-07-19 | 2019-10-18 | 深圳市工勘岩土集团有限公司 | Underpin the constructing structure of no basement building underground space increasing layer |
| CN111980439A (en) * | 2020-07-21 | 2020-11-24 | 上海建工一建集团有限公司 | Wall bearing replacement device and wall bearing replacement construction method |
| CN113235971A (en) * | 2021-05-19 | 2021-08-10 | 山东大学 | Large-area dismantling device and process for wall structure of subway station |
-
2021
- 2021-12-30 CN CN202111644742.4A patent/CN114319930B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429819A (en) * | 2007-11-07 | 2009-05-13 | 上海天演建筑物移位工程有限公司 | Wall and column underpinning method |
| CN109024662A (en) * | 2018-07-19 | 2018-12-18 | 深圳市工勘岩土集团有限公司 | Method of the anchor pile underpinning without basement building underground space increasing layer |
| CN209509556U (en) * | 2018-07-19 | 2019-10-18 | 深圳市工勘岩土集团有限公司 | Underpin the constructing structure of no basement building underground space increasing layer |
| CN109610874A (en) * | 2019-01-18 | 2019-04-12 | 央固工程科技（上海）有限公司 | Increase the basement and its construction process built inside existing workshop |
| CN111980439A (en) * | 2020-07-21 | 2020-11-24 | 上海建工一建集团有限公司 | Wall bearing replacement device and wall bearing replacement construction method |
| CN113235971A (en) * | 2021-05-19 | 2021-08-10 | 山东大学 | Large-area dismantling device and process for wall structure of subway station |
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| Publication number | Publication date |
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| CN114319930A (en) | 2022-04-12 |
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