CN113216681A - House reinforcing reverse construction method - Google Patents
House reinforcing reverse construction method Download PDFInfo
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- CN113216681A CN113216681A CN202110547714.4A CN202110547714A CN113216681A CN 113216681 A CN113216681 A CN 113216681A CN 202110547714 A CN202110547714 A CN 202110547714A CN 113216681 A CN113216681 A CN 113216681A
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- joist
- wall
- concrete
- frame column
- house
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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
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- Chemical Kinetics & Catalysis (AREA)
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a reverse construction method for house reinforcement, which comprises the following steps: reinforcing the upper structure of the house; removing the joint part of the longitudinal and transverse walls at the end part of the wall body to be removed; installing a frame column template at the joint part of the longitudinal and transverse walls, and installing a frame column reinforcement cage in the frame column template; pouring frame column concrete; the top of a wall body to be dismantled is dug at intervals, and a plurality of shoulder beam mounting holes are arranged; a shoulder beam template is arranged in the shoulder beam mounting hole, and a shoulder beam reinforcement cage is arranged in the shoulder beam template; mounting joist templates on two sides of a wall to be dismantled, and mounting joist reinforcement cages in the joist templates; concrete pouring holes are arranged on the floor slab above the joist at intervals; pouring concrete of the joist and the frame column in the joist beam height range; excavating an underground foundation; reinforcing the underground foundation; the invention is different from the existing house reinforcing construction technology, and the construction is sequentially carried out from the upper structure to the lower part, so that the damage of the upper structure caused by construction disturbance is avoided. And the working face is bigger, greatly shortens the time limit for a project.
Description
Technical Field
The invention relates to the technical field of house reinforcement, in particular to a house reinforcement reverse construction method.
Background
According to the modern residential use requirement, more and more load-bearing brick walls of old brick-concrete structures need to be dismantled and modified so as to achieve the room layout of large rooms and long depths. And from the basis, the working face is too small, the personnel arrangement is inconvenient, and the construction period is too long.
Disclosure of Invention
In order to solve the problems, the invention provides a building reinforcing reverse construction method capable of shortening the construction period in a limited way, which comprises the following steps:
s1, reinforcing the upper structure of the house;
s2, removing the joint part of the longitudinal and transverse walls at the end part of the wall to be removed;
s3, installing a frame column template at the joint part of the longitudinal wall and the transverse wall, and installing a frame column reinforcement cage in the frame column template;
s4, pouring frame column concrete;
s5, hollowing the top of the wall to be dismantled at intervals, and arranging a plurality of shoulder beam mounting holes;
s6, mounting a shoulder beam template in the shoulder beam mounting hole, and mounting a shoulder beam reinforcement cage in the shoulder beam template;
s7, removing wall plastering and precast slab bottom plastering within the range of the joist;
s8, mounting joist templates on two sides of the wall to be dismantled, and mounting joist reinforcement cages in the joist templates;
s9, arranging concrete pouring holes at certain intervals on the floor slab above the joist;
s10, pouring the joist and the concrete of the frame column in the joist beam height range;
s11, excavating an underground foundation;
s12, reinforcing the underground foundation;
and S13, after the frame concrete reaches the design strength and the structure is detected, the wall is dismantled.
Furthermore, the joists support the shoulder beams and are arranged on two sides of the wall to be dismantled in a clinging mode.
Furthermore, the distance between the two shoulder beam mounting holes is not more than 1 m.
Furthermore, the beam columns are connected into a whole through a bar planting and welding method.
Furthermore, when concrete is poured from the concrete pouring hole, the concrete is poured to the upper surface of the concrete pouring hole.
The invention has the beneficial effects that: the invention is different from the existing house reinforcing construction technology, and the construction is sequentially carried out from the upper structure to the lower part, so that the damage of the upper structure caused by construction disturbance is avoided. And the working face is bigger, greatly shortens the time limit for a project.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of section A-A of FIG. 1;
FIG. 3 is a schematic structural view of section B-B of FIG. 1;
FIG. 4 is a schematic structural view of section C-C of FIG. 1;
fig. 5 is a schematic structural view of the D-D section of fig. 2.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.
As shown in fig. 1 to 5, the invention provides a reverse construction method for house reinforcement, which comprises the following steps:
s1, reinforcing the upper structure of the house; the reinforcing method comprises the steps of coating high-performance composite mortar on the surface of the wall body, enlarging the cross section of the beam and the like;
s2, removing the joint part of the longitudinal and transverse walls at the end part of the wall body 1 to be removed; in the embodiment, the preferable cutting mode is static cutting, and other cutting tools can be used for cutting; as shown in fig. 4, the size of the removed vertical and horizontal wall connecting part is slightly larger than the size of the frame column 2; a certain installation space 11 is reserved.
S3, installing a frame column template at the joint part of the longitudinal wall and the transverse wall, and installing a frame column reinforcement cage in the frame column template; the reinforcement cage is formed by binding frame column longitudinal reinforcements and frame column stirrups;
s4, pouring concrete on the frame column 2; wetting and painting an interface agent on the contact surfaces of the frame columns 2 at the two ends of the wall and the original brick wall body, and pouring concrete, wherein the column concrete adopts a secondary pouring method, and the frame column concrete is poured to a position 50mm below the bottom surface of the joist 4;
s5, hollowing the top of the wall body 1 to be dismantled at intervals, and arranging a plurality of shoulder beam mounting holes; snapping ink lines on a wall body to be dismantled according to the size of a shoulder beam to be poured, digging a brick hole with a certain width and height which are the same as those of the joist 4 on the brick wall at certain intervals in the area, chiseling broken bricks in the brick hole, and cleaning dust; the distance between the shoulder beams 3 is not more than 1m, the shoulder beams can be properly enlarged under the condition that the ring beams 5 are arranged on the original floor, and the width of the shoulder beams 3 can be 240 mm.
S6, placing the shoulder beam longitudinal bars 32 and the shoulder beam stirrups 31 which are bound into beam holes; binding the shoulder beam longitudinal bars and the shoulder beam stirrups to form a reinforcement cage, and installing shoulder beam templates in the shoulder beam installation holes;
s7, removing wall plastering and precast slab bottom plastering within the range of the joist; cleaning the fragments, dust and the like in the concrete pouring hole 9; cleaning up the broken slag, floating dust and sundries on the surface of the original brick wall in the shoulder beam 3; cleaning the contact surface of the joist 4 and the brick wall;
s8, respectively erecting side templates on the outer sides of the joists 4, wherein the inner templates of the joists all use the wall as inner templates; erecting bottom templates of joists 4 on two sides of the wall body, and anchoring the tail ends of longitudinal ribs in the joists into frame columns 2 on two ends of the wall body for a sufficient length; placing the beam inner hoops at fixed intervals and firmly binding the beam inner hoops with the beam inner longitudinal bars; binding joist reinforcement cages 8 on two sides of the wall to be dismantled;
s9, arranging concrete pouring holes 9 on the floor slab above the joist at certain intervals; drilling concrete pouring holes 9 with a certain diameter on a floor 7 at intervals of a certain distance at the tops of joists 4 on two sides of a wall, namely two sides of an upper wall, and reserving and not breaking stress steel bars in the original floor when the concrete pouring holes 9 are drilled;
s10, pouring the joist 4 and the concrete of the frame column in the joist beam height range; wetting and painting an interface agent on the contact surface of the joist 4 and the brick wall, pouring concrete from the concrete pouring hole 9, continuously enhancing vibration, ensuring the compactness of the concrete and ensuring the concrete to be poured to the upper surface of the concrete pouring hole 9;
s11, excavating an underground foundation; excavating earth on the inner side and the outer side of a wall to be demolished, demolishing an enlarged foot part of an original brick wall foundation to form a new foundation space, tamping original foundation soil, and pouring foundation concrete in the new foundation space to form an independent foundation 6 containing a newly added cushion layer;
and S12, reinforcing the underground foundation.
And S13, after the frame concrete reaches the design strength and the structure is detected, the wall is dismantled.
The method comprises the steps of firstly punching a hole to penetrate through a wall to be provided with shoulder beams, arranging two joists for supporting the shoulder beams on two sides close to a wall to be dismantled, and transmitting load transmitted by the wall on the upper part of the wall to be dismantled to the joists through the shoulder beams. The reinforced concrete shoulder beam mainly plays a role in transferring load, the tie between the double beams is reinforced, the distance between the reinforced concrete shoulder beam and the double beams is required to ensure the effective transfer of the load, and the upper longitudinal bars and the lower longitudinal bars are the same. Short shoulder beams penetrating through the inner wall and oppositely pulled are arranged between the double joists, the distance is 1000mm, and the load of the upper wall transmits force to the joists through the short shoulder beams according to the flat arch principle of the masonry. After drilling short shoulder beam brick holes, installing reinforcing steel bars and erecting a mould, the concrete double-joist can be poured, considering that the top of the joist is tightly propped against the floor slab, a concrete pouring hole 9 with the thickness of 100mmx100mm needs to be drilled in the floor slab at certain intervals (the preferred embodiment is 500mm), and the self-compacting concrete is poured from the plate downwards.
And after the whole newly added frame concrete reaches the design strength and the structure is detected, the wall body can be dismantled. When the wall is disassembled, the wall is symmetrically segmented from the middle and is disassembled from top to bottom along the skin.
And (3) observing the stress, deformation and the like of the structure in the construction process and after transformation, and taking measures to process when abnormal conditions occur.
After the original brick wall is dismantled, in fact, the part of the original brick wall clamped in the height range of the double-beam is protected by cement mortar, and in order to prevent the bricks from falling after the wall is dismantled, the transverse steel bars are arranged at the bottoms of the double beams, and the end parts of the double beams are implanted into the concrete beams.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A house reinforcing reverse construction method is characterized in that: the method comprises the following steps:
s1, reinforcing the upper structure of the house;
s2, removing the joint part of the longitudinal and transverse walls at the end part of the wall to be removed;
s3, installing a frame column template at the joint part of the longitudinal wall and the transverse wall, and installing a frame column reinforcement cage in the frame column template;
s4, pouring frame column concrete;
s5, hollowing the top of the wall to be dismantled at intervals, and arranging a plurality of shoulder beam mounting holes;
s6, mounting a shoulder beam template in the shoulder beam mounting hole, and mounting a shoulder beam reinforcement cage in the shoulder beam template;
s7, removing wall plastering and precast slab bottom plastering within the range of the joist;
s8, mounting joist templates on two sides of the wall to be dismantled, and mounting joist reinforcement cages in the joist templates;
s9, arranging concrete pouring holes at certain intervals on the floor slab above the joist;
s10, pouring the joist and the concrete of the frame column in the joist beam height range;
s11, excavating an underground foundation;
s12, reinforcing the underground foundation;
and S13, after the frame concrete reaches the design strength and the structure is detected, the wall is dismantled.
2. The method for constructing the house reinforcement by the reverse construction method according to claim 1, wherein: the joists support the shoulder beams and are arranged on two sides of the wall to be dismantled in a clinging mode.
3. The house reinforcing reverse construction method according to claim 2, wherein: the distance between the two shoulder beam mounting holes is not more than 1 m.
4. The house reinforcing reverse construction method according to claim 3, wherein: all the beams and columns are connected into a whole through a bar planting and welding method.
5. The house reinforcing reverse construction method according to claim 4, wherein: when concrete is poured from the concrete pouring hole, the concrete is required to be poured to the upper surface of the concrete pouring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110547714.4A CN113216681A (en) | 2021-05-19 | 2021-05-19 | House reinforcing reverse construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110547714.4A CN113216681A (en) | 2021-05-19 | 2021-05-19 | House reinforcing reverse construction method |
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| Publication Number | Publication Date |
|---|---|
| CN113216681A true CN113216681A (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110547714.4A Pending CN113216681A (en) | 2021-05-19 | 2021-05-19 | House reinforcing reverse construction method |
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| CN (1) | CN113216681A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006002428A (en) * | 2004-06-17 | 2006-01-05 | Shimizu Corp | Reinforcing method of existing floor and base isolation method of existing building |
| CN102127974A (en) * | 2011-04-18 | 2011-07-20 | 上海现代建筑设计(集团)有限公司 | Design and construction method of additional cellar under existing building |
| CN104746892A (en) * | 2015-03-30 | 2015-07-01 | 山东双得利建设科技有限公司 | Supporting beam wall demolition device and supporting beam wall demolition construction method |
| GB201720584D0 (en) * | 2017-12-11 | 2018-01-24 | Edscer William George | Method for the reinforcement of masonry structures |
-
2021
- 2021-05-19 CN CN202110547714.4A patent/CN113216681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006002428A (en) * | 2004-06-17 | 2006-01-05 | Shimizu Corp | Reinforcing method of existing floor and base isolation method of existing building |
| CN102127974A (en) * | 2011-04-18 | 2011-07-20 | 上海现代建筑设计(集团)有限公司 | Design and construction method of additional cellar under existing building |
| CN104746892A (en) * | 2015-03-30 | 2015-07-01 | 山东双得利建设科技有限公司 | Supporting beam wall demolition device and supporting beam wall demolition construction method |
| GB201720584D0 (en) * | 2017-12-11 | 2018-01-24 | Edscer William George | Method for the reinforcement of masonry structures |
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