CN114319930A - Enclosure structure below bearing wall and construction method thereof - Google Patents
Enclosure structure below bearing wall and construction method thereof Download PDFInfo
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- CN114319930A CN114319930A CN202111644742.4A CN202111644742A CN114319930A CN 114319930 A CN114319930 A CN 114319930A CN 202111644742 A CN202111644742 A CN 202111644742A CN 114319930 A CN114319930 A CN 114319930A
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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 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 on 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 the underpinning column is arranged between the underpinning ground beams at the position of the removed bearing wall, 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 underpin and dismantle part of the original building structure under the condition of ensuring that the position of the newly added enclosure structure is not changed, change the force transmission path of the original structure and ensure the safety of the structure. In the process of developing the underground space of the existing building, the newly added enclosure structure is used as the foundation for underpinning the original building structure, so that the purposes of increasing the internal space of the building and controlling the deformation of the structure are achieved.
Description
Technical Field
The invention relates to an enclosure structure below a bearing wall and a construction method thereof.
Background
When underground space is newly added in the existing building, the problem that the position of the newly added enclosure structure conflicts with that of the original building structure 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 under 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 on 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 load-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 load-bearing wall of the present invention, the enclosure structure further includes:
the bearing platform is arranged on the ground;
and the underpinning column is arranged between the underpinning ground beams at the position of the removed bearing wall, 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 load-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, beam pads are further connected to two ends of the wall clamping beam.
In an embodiment of the building enclosure below the bearing wall, a reserved section wall body of the bearing wall is arranged close to the beam pad side.
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 method for constructing a building envelope under a load-bearing wall, using the building envelope under the load-bearing wall described in any one of the above, the method including:
the construction of wall clamping beams and wall penetrating beams is firstly carried out during the first underpinning, so that when a local bearing wall is subsequently dismantled, the upper structure load of the dismantling section completes one-time force transmission path conversion;
then, carrying out construction of a lower underpinning ground beam and a middle flat column support, completing primary underpinning by restoring an upper load force transmission path of a demolition section, demolishing a bearing wall between the middle flat columns after completing primary underpinning, and transferring an upper load of the demolition section to the middle flat column support and the lower underpinning ground beam through a wall clamping beam;
after the bearing wall is removed, constructing the fender pile, constructing a bearing platform and a underpinning column on the fender pile to realize secondary underpinning, wherein the fender pile and the bearing wall are eccentric; the connecting area of the top of the underpinning column and the wall clamping beam is made into a bracket form, and the bracket is jacked to the bottoms of the wall clamping beams on the two sides so as to cover the wall clamping beams on the two sides;
and after the secondary underpinning is finished, the middle flat column and the underpinning ground beam can be detached, the upper structure load is transmitted to the underpinning cow leg column through the wall clamping beam, and finally the enclosure pile construction at the position of the detached underpinning ground beam can be carried out, so that the staggered construction is finished.
Compared with the prior art, the invention adopts the wall clamping beams 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 on 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 the underpinning columns are arranged between the underpinning ground beams 6 at the positions of the removed bearing walls, the tops of the underpinning columns are connected with the wall clamping beams, and the bottoms of the underpinning columns are connected with the bearing platform. The invention can underpin and dismantle part of the original building structure under the condition of ensuring that the position of the newly added enclosure structure is not changed, change the force transmission path of the original structure and ensure the safety of the structure. In the process of developing the underground space of the existing building, the newly added enclosure structure is used as the foundation for underpinning the original building structure, so that the purposes of increasing the internal space of the building and controlling the deformation of the structure are achieved.
Drawings
FIG. 1 is a schematic plan view of an enclosure below 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 the building envelope under the load bearing wall according to one embodiment of the present invention;
in the figure: 1-beam pad; 2-a wall beam; 3-a fender post; 4-steel pipe static pressure pile; 5-underpinning the bracket column; 6-underpinning the ground beam; 7-a load bearing wall to be dismantled; 8-a flat column; 9-an original structural beam; 10-a through-wall beam; 11-a platform; 12-retaining the section wall; 13-original structure floor.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the present invention provides a building envelope under a load-bearing wall, comprising:
the wall clamping beams 2 are arranged on two sides of the top of the bearing wall 7 to be dismantled;
the wall penetrating beam 10 is connected between the wall clamping beams 2;
a underpinning ground beam 6 arranged on the lower part of the ground;
and the middle flat column 8 is connected between the wall clamping beam 2 and the lower underpinning ground beam 6.
The invention can underpin and dismantle part of the original building structure under the condition of ensuring that the position of the newly added enclosure structure is not changed, change the force transmission path of the original structure and ensure the structure safety. In the process of developing the underground space of the existing building, the newly added enclosure structure is used as the foundation for underpinning the original building structure, so that the purposes of increasing the internal space of the building and controlling the deformation of the structure are achieved.
In an embodiment of the enclosure structure under the load-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 load-bearing wall of the present invention, the enclosure structure further includes:
a bearing platform 11 arranged on the ground;
and the underpinning columns 5 are arranged between the underpinning ground beams 6 at the positions of the removed bearing walls, the tops of the underpinning columns 5 are connected with the wall clamping beams 2, and the bottoms of the underpinning columns 5 are connected with the bearing platform 11.
In an embodiment of the enclosure structure under the load-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, beam pads 1 are further connected to two ends of the wall clamping beam 2.
In an embodiment of the enclosure structure below the bearing wall, a reserved section wall body 12 of the bearing wall is arranged on the side close to the beam pad 1.
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 slab 13.
According to another aspect of the present invention, there is also provided a method of constructing a building envelope under a load-bearing wall, including:
step S1, when the first underpinning is carried out, the construction of the wall clamping beam 2 and the wall penetrating beam 10 is carried out, so that when the local bearing wall is dismantled subsequently, the upper structure load of the dismantling section completes the conversion of a force transmission path;
step S2, the support construction of the lower underpinning ground beam 6 and the middle flat column 8 is carried out, the first underpinning is completed by restoring the upper load transmission path of the dismantling section, the bearing wall 7 between the middle flat columns 8 is dismantled after the first underpinning is completed, and the upper load of the dismantling section is transferred to the middle flat column 8 support and the lower underpinning ground beam 6 through the wall clamping beam 2;
step S3, after the bearing wall is removed, constructing the fender post 3, constructing the bearing platform 11 and the underpinning column 5 on the fender post 3, realizing secondary underpinning, and enabling the fender post and the bearing wall to be eccentric; the connecting area of the top of the underpinning column 5 and the wall clamping beam 2 is made into a bracket form, and the bracket is jacked to the bottoms of the wall clamping beams on the two sides so as to cover the wall clamping beams 2 on the two sides;
and step S4, the middle flat column 8 and the underpinning ground beam 6 can be removed after the secondary underpinning is finished, the upper structure load is transmitted to the underpinning bracket column 5 through the wall clamping beam 2, and finally the enclosure pile construction at the position of the underpinning ground beam 6 after the removal can be carried out, so that the 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 load-bearing wall to be dismantled, and the whole process monitoring is implemented.
Here, the method of the embodiment performs the underpinning of the underground fender post and the upper building structure in a staggered manner, and the overall sequence is underpinning construction → enclosure construction → underpinning construction → enclosure construction.
The invention relates to a twice underpinning process, wherein the first underpinning utilizes a newly-increased underpinning ground beam as a temporary foundation, and the second underpinning utilizes a newly-increased fender post as a foundation;
specifically, the construction process of the invention can be as follows: :
1. before construction, setting settlement and crack monitoring points on the peripheral wall body of the bearing wall to be dismantled, and monitoring the whole staggered construction process;
2. newly building wall clamping beams on two sides of a bearing wall to be underpinned and dismantled, wherein the wall clamping beams are provided with wall penetrating beams at intervals along the length direction, the wall clamping beams are positioned at the top of the bearing wall and at the lower part of a connecting structure beam plate 13, 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 of an upper structure and the bearing capacity of a foundation, increasing the bearing capacity of the foundation, and keeping away from the enclosure pile for a certain distance at the position of the steel pipe pile;
4. additionally arranging a flat column on the underpinning ground beam to serve as a temporary vertical support between the wall clamping beam and the underpinning ground beam;
5. after the strength of the flat column meets the requirement, dismantling a bearing wall and chiseling a foundation under the wall in the underpinning range;
6. carrying out fender post construction in the area affected by the flat column;
7. after the strength of the fender post meets the requirement, construction of a bearing platform and a underpinning column is carried out, the newly added fender post and the original structure bearing wall are eccentric, and a bracket is arranged at the top of the underpinning column;
8. removing the flat column and the underpinning ground beam after the underpinning column strength meets the requirement;
9. and (5) constructing the fender post below the flat column.
The staggered construction structure level method has the following characteristics:
1. the existing building newly increases underground space, the fender post can often be used as a bearing structure, 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 an upper structure.
3. Bearing wall that influences fender pile within range is demolishd after trading through the underpinning, can realize building inner space's increase under the prerequisite of guaranteeing structure safety.
4. The method for underpinning the superstructure by staggered construction is flexible, space is reserved for later construction, and the removed bearing wall can be restored after the building envelope and the underground structure are completed.
For details of each system embodiment of the present invention, reference may be made to corresponding parts of each method embodiment, and details are not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A building envelope 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 on the lower part of the ground;
and the middle flat column is connected between the wall clamping beam and the lower underpinning ground beam.
2. A building envelope beneath a load bearing wall as claimed in claim 1 further comprising: and the steel pipe static pressure pile is arranged at the lower part of the lower underpinning ground beam.
3. A building envelope beneath a load bearing wall as claimed in claim 1 further comprising:
the bearing platform is arranged on the ground;
and the underpinning column is arranged between the underpinning ground beams at the position of the removed bearing wall, 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.
4. A building envelope beneath a load bearing wall as claimed in claim 1 further comprising:
and the fender post is arranged below the bearing platform.
5. A building envelope beneath a load bearing wall as claimed in claim 1 wherein the top of the underpinning column is connected to the wall clamping beam by a bracket.
6. A building envelope beneath a load bearing wall as claimed in claim 1 wherein beam pads are also attached to both ends of the wall beams.
7. A building envelope beneath a load bearing wall as claimed in claim 1 wherein adjacent the beam pad side is a remaining section of the load bearing wall.
8. A building envelope beneath a load bearing wall as claimed in claim 1 wherein the top of the load bearing wall is connected to an original structural beam.
9. A containment structure for use beneath a load bearing wall as claimed in claim 1 wherein the said wall-clamping beams and the upper portion of the beams have floor slabs of the original structure attached thereto.
10. A method of constructing a load bearing wall below envelope, using the load bearing wall below envelope of any one of claims 1 to 9, the method comprising:
the construction of wall clamping beams and wall penetrating beams is firstly carried out during the first underpinning, so that when a local bearing wall is subsequently dismantled, the upper structure load of the dismantling section completes one-time force transmission path conversion;
then, carrying out construction of a lower underpinning ground beam and a middle flat column support, completing primary underpinning by restoring an upper load force transmission path of a demolition section, demolishing a bearing wall between the middle flat columns after completing primary underpinning, and transferring an upper load of the demolition section to the middle flat column support and the lower underpinning ground beam through a wall clamping beam;
after the bearing wall is removed, constructing the fender pile, constructing a bearing platform and a underpinning column on the fender pile to realize secondary underpinning, wherein the fender pile and the bearing wall are eccentric; the connecting area of the top of the underpinning column and the wall clamping beam is made into a bracket form, and the bracket is jacked to the bottoms of the wall clamping beams on the two sides so as to cover the wall clamping beams on the two sides;
and after the secondary underpinning is finished, the middle flat column and the underpinning ground beam can be detached, the upper structure load is transmitted to the underpinning cow leg column through the wall clamping beam, and finally the enclosure pile construction at the position of the detached underpinning ground beam can be carried out, so that the 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN114319930A true CN114319930A (en) | 2022-04-12 |
| CN114319930B CN114319930B (en) | 2023-09-05 |
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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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| CN114319930B (en) | 2023-09-05 |
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