阅读说明：本技术 一种生土房屋承重墙体加固的结构及施工方法 (Structure for reinforcing bearing wall of raw soil house and construction method ) 是由 陈战利 杜曜先 康文景 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种生土房屋承重墙体加固的结构及施工方法,拟过梁位置间距600mm处钻设安装孔,安装孔内顶紧设置工字型支撑件,承重墙两侧从顶部往下钻设支承柱容纳孔,支承柱为钢筋混凝土柱。两个支承柱通过支承柱钢筋与托换梁钢筋的拉结和混凝土的粘结力与托换梁组成一个整体,工字型支撑件通过安装孔两端水平延伸至房屋内与此承重墙平行墙体相应位置钻设安装孔塞入。本发明利用钢筋的拉结和混凝土的粘结力有效地承担了托换梁传递来的荷载,提高了结构的稳定性。本发明的方法使施加于承重墙上的力分散于两端墙体,共同承受上部荷载,结构整体性好,提高了受压承载力和稳定性。(The invention discloses a structure for reinforcing a bearing wall of a raw soil house and a construction method thereof.A mounting hole is drilled at a position with a spacing of 600mm at a position of a simulated lintel, an I-shaped supporting piece is tightly propped in the mounting hole, bearing column accommodating holes are drilled at two sides of the bearing wall from the top to the bottom, and the bearing columns are reinforced concrete columns. The two supporting columns and the underpinning beam form a whole through the pulling of the reinforcing steel bars of the supporting columns and the reinforcing steel bars of the underpinning beam and the adhesive force of the concrete, and the I-shaped supporting piece horizontally extends into the house through two ends of the mounting hole and is inserted into the mounting hole drilled at the corresponding position of the wall body parallel to the bearing wall. The invention effectively bears the load transmitted by the underpinning beam by utilizing the drawknot of the reinforcing steel bars and the adhesive force of the concrete, and improves the stability of the structure. The method of the invention enables the force applied on the bearing wall to be dispersed on the wall bodies at the two ends, and the bearing wall bears the upper load together, has good structural integrity, and improves the bearing capacity and stability under compression.)

1. A structure for reinforcing a bearing wall of a raw soil house comprises an I-shaped supporting piece (1), a supporting column (2), a supporting column accommodating hole (3), a mounting hole (4), a supporting column reinforcing steel bar (5), a underpinning beam (6), a underpinning beam reinforcing steel bar (7) and a stirrup (8); the method is characterized in that: a mounting hole (4) is drilled at the interval of 600mm of a pseudo-lintel position, the height and width of the mounting hole (4) are respectively 15mm and 120mm, an I-shaped support piece (1) is tightly arranged in the mounting hole (4) in a jacking mode, support column accommodating holes (3) are drilled in the two sides of a bearing wall from the top downwards, the support columns (2) are reinforced concrete columns, two support columns (2) form a whole with a underpinning beam steel bar (7) and an underpinning beam (6) through support column steel bars (5), the bottom and the top of the I-shaped support piece (1) are tightly arranged in the jacking mode with the wall of the mounting hole (4), the support column steel bar (5) and the underpinning beam steel bar (7) are arranged on the upper side and the lower side of the mounting hole (4), and stirrups (8).

2. The structure for reinforcing the bearing wall of the raw soil house according to claim 1, wherein: the distance between the mounting holes (4) is 600mm, and the bottoms of all the mounting holes (4) are on the same horizontal plane.

3. The structure for reinforcing the bearing wall of the raw soil house according to claim 1, wherein: the external dimension of the I-shaped supporting piece (1) is consistent with the size of the mounting hole (4).

4. The structure for reinforcing the bearing wall of the raw soil house according to claim 1, wherein: the diameter of the supporting column accommodating hole (3) is not larger than the wall thickness.

5. A construction method of a raw soil house bearing wall body reinforcing structure is characterized in that:

s1: construction of the support column (2): firstly, vertically drilling circular supporting column accommodating holes (3) downwards from roofs at the left end and the right end of a bearing wall to be dismounted to form two supporting column accommodating holes (3), respectively embedding supporting column reinforcing steel bars (5) in the two supporting column accommodating holes (3), chiseling off a wall body of the superposition part of the two sides of a underpinning beam (6) and the upper parts of the supporting column accommodating holes (3), and reserving upper end reinforcing steel bars of the supporting column reinforcing steel bars (5);

s2: construction of mounting hole (4) and I-shaped support piece (1): firstly, drilling mounting holes (4) at intervals at a position where a lintel is to be arranged for mounting an I-shaped support member (1), wherein the height of each mounting hole (4) is determined according to the height of the lintel, the distance between every two mounting holes (4) is 600mm, and the bottoms of the mounting holes (4) are on the same horizontal plane; after the mounting holes (4) are opened, pre-processed welding I-shaped supporting pieces (1) are plugged into each small hole, the size of each I-shaped supporting piece (1) is consistent with that of each mounting hole (4), the I-shaped supporting pieces (1) horizontally extend into a house through the two ends of each mounting hole (4) and are plugged with the mounting holes (4) drilled at the corresponding positions of the wall bodies parallel to the bearing wall, the plugging depth is equal to the wall thickness, and the bottom and the top of each I-shaped supporting piece (1) are tightly propped against the wall bodies of the mounting holes (4);

s3: and (3) reinforcing construction of the supporting columns (2) and the underpinning beams (6): removing the rest wall bodies between the bearing wall mounting holes (4), implanting underpinning beam reinforcing steel bars (7) into the upper side and the lower side of the mounting holes (4), when binding the reinforcing steel bars, extending the supporting column reinforcing steel bars (5) into the upper side and the lower side of the mounting holes (4), extending the underpinning beam reinforcing steel bars (7) into the supporting columns (2), and arranging stirrups (8) between the mounting holes (4); simultaneously pouring reinforced concrete lintel and two side supporting column accommodating holes (3), vibrating tightly, forming a supporting column (2) together with a supporting column reinforcing steel bar (5) after concrete in the supporting column accommodating holes (3) is finally set, wherein the supporting column (2) is arranged below two ends of a underpinning beam (6);

s4: dismantling the bearing wall: after the underpinning beam (6) and the supporting column (2) reach the designed strength, the wall body of the area to be drilled is dismantled from two ends to the middle part and from the upper part to the lower part, and large vibration needs to be avoided during drilling and wall drilling so as to avoid influencing the structural safety;

s5: integral reinforcement: after the underpinning beam (6) and the supporting column (2) reach the designed strength, templates are arranged at the two sides of the underpinning beam (6) and the overlapped part of the upper part of the supporting column (2), concrete is poured in the templates, and after the concrete is finally set, the underpinning beam (6), the supporting column (2) and the underpinning beam (6) form a whole through the pulling of reinforcing steel bars and the binding power of the concrete.

Technical Field

The invention relates to the technical field of building reinforcement, in particular to a structure and a construction method for reinforcing a bearing wall of a raw soil house.

Background

At present, the number of buildings with civil structures in rural areas of China is large, and some houses with earth structures built before twenty-first century in China are still in use. However, with the development of economic level in China, people have higher and higher requirements on material level, higher and higher requirements on safety, comfort level and earthquake resistance of buildings and more diversified requirements on building functions. Some earth structure houses built before the twenty-first century can not meet the use requirements of people in China on large-space and high-safety houses at present gradually due to the problems of poor disaster resistance, poor durability, large occupied area and the like. Because the demolition and reconstruction cost is high, the main solution to the phenomenon is to structurally reform and reinforce the existing raw soil structure building to recover the structural bearing capacity, ensure the structural safety and change the small-space raw soil structure building into a large-space frame structure building to meet the requirements of new use functions of people in China. In summary, in the transformation of the raw soil structure building, the supporting wall of the raw soil building is replaced into the frame building by a technical means to meet the use requirements of people in China, and the method inevitably becomes an important development direction of the transformation of the modern building.

In the conventional method for reinforcing the bearing wall of the raw soil house, the wall to be disassembled is underpinned by additionally arranging beam columns on two sides of the wall to be disassembled, and the deformation coordination capability is poor, so that the method for disassembling, transforming and reinforcing the bearing wall is very unfavorable for earthquake resistance. And concrete beams are added on two sides of the wall to be demolished to underpin part, so that the whole stress is unstable. The ring beam in the bearing wall of the original raw soil house is partially reinforced and transformed into the profile steel combined beam underpinned wall, and the profile steel and the steel plate are utilized to reinforce the wall bodies at two sides. Based on this, it is still necessary to design a novel structure for reinforcing the bearing wall of the raw soil house.

The patent of the invention provides a structure for reinforcing a bearing wall of a raw soil house, which has the characteristics of simple and convenient construction, strong economy, easy popularization, definite structure force transmission and stable stress, can effectively meet the requirement on the applicability of the building space span, and has wide application prospect.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a structure for reinforcing a bearing wall of a raw soil house and a construction method thereof, so as to solve the problems of low land utilization rate, low earthquake resistance, poor disaster resistance, poor durability and the like of the raw soil house.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a reinforced structure of native house bearing wall body and construction method, including I shape support piece 1, supporting column 2, supporting column accommodation hole 3, mounting hole 4, supporting column reinforcing bar 5, underpinning roof beam 6, underpinning roof beam reinforcing bar 7, stirrup 8, plan that lintel position interval 600mm bores and establishes height x width 15mm x 120 mm's mounting hole 4, 4 high wide sizes of mounting hole are 15mm and 120mm respectively, the top tightly sets up I shape support piece 1 in the mounting hole 4, supporting column reinforcing bar 5 and underpinning roof beam reinforcing bar 7 have been arranged to both sides about mounting hole 4, stirrup 8 has been arranged between the adjacent mounting hole 4. Two sides of the bearing wall are drilled with bearing column accommodating holes 3 from the top downwards, and the bearing columns 2 are reinforced concrete columns. The two supporting columns 2 form a whole with the underpinning beam 6 through the drawknot of the supporting column reinforcing steel bars 5 and the underpinning beam reinforcing steel bars 7 and the adhesive force of the concrete, and the bottom and the top of the I-shaped supporting piece 1 are tightly propped against the wall body of the mounting hole 4. Effectively taking up the load transmitted by the underpinning beam 6. The I-shaped supporting piece 1 enables the force applied to the bearing wall to be dispersed to the wall bodies at two ends and bear the upper load together. The structure integrity is good, and the bearing capacity and the stability under pressure are improved.

Preferably, the distance between the mounting holes 4 is about 600mm, and the bottoms of the mounting holes 4 are on the same horizontal plane.

Preferably, the size of the I-shaped supporting piece 1 is consistent with that of the mounting hole 4, and the bottom and the top of the I-shaped supporting piece 1 are tightly propped against the wall body of the mounting hole 4.

Preferably, the supporting columns 2 are reinforced concrete columns, and the two supporting columns 2 and the underpinning beam 6 form a whole through the pulling of the supporting column steel bars 5 and the underpinning beam steel bars 7 and the bonding force of concrete.

Preferably, the demolition of the wall body of the area to be excavated can be carried out only after the strength of the underpinning beam 6 and the supporting column 2 reaches 100% of the design strength, dense holes are drilled along the periphery of the wall body to be demolished by a drilling machine, then the wall body is demolished from top to bottom, and great vibration needs to be avoided during the drilling and the wall chiseling so as not to influence the structural safety.

A construction method for reinforcing a bearing wall of a raw soil house comprises the following steps:

s1: construction of the support column 2: firstly, vertically downwards drilling from the roofs at the left end and the right end of a bearing wall to be dismounted to form circular bearing column accommodating holes 3, wherein the diameters of the bearing column accommodating holes 3 are not larger than the wall thickness, forming two bearing column accommodating holes 3, respectively embedding bearing column reinforcing steel bars 5 in the two bearing column accommodating holes 3, chiseling a wall body with two sides of a underpinning beam 6 and the upper part of the bearing column accommodating holes 3 coinciding parts, and reserving upper end reinforcing steel bars of the bearing column reinforcing steel bars 5.

S2: construction of the mounting hole 4 and the I-shaped support member 1: firstly, drilling mounting holes 4 with the height multiplied by the width multiplied by 15mm multiplied by 120mm at intervals at the position of a virtual lintel for mounting an I-shaped supporting piece 1, wherein the height of the mounting holes 4 is determined according to the height of the I-shaped supporting piece 1, the distance between the mounting holes 4 is 600mm, the bottoms of the mounting holes 4 are on the same horizontal plane, and mechanical drilling equipment is adopted to avoid damaging a wall body in the process of waiting for construction. After the mounting holes 4 are drilled, the welding I-shaped supporting pieces 1 which are processed in advance are plugged into each small hole, the size of each I-shaped supporting piece 1 is consistent with that of each mounting hole 4, the I-shaped supporting pieces 1 horizontally extend into a house through two ends of each mounting hole 4 and are drilled with mounting holes 4 in positions corresponding to the wall bodies parallel to the bearing wall, the plugging depth is equal to the wall thickness, the bottom and the top of each I-shaped supporting piece 1 are tightly propped against the wall bodies of the mounting holes 4, and the I-shaped supporting pieces 1 enable force applied to the bearing wall to be dispersed to the wall bodies at two ends to bear upper load together. The structure integrity is good, and the bearing capacity and the stability under pressure are improved.

S3: and (3) reinforcing construction of the supporting columns 2 and the underpinning beams 6: removing the rest wall bodies between the bearing wall mounting holes 4, implanting underpinning beam reinforcing steel bars 7 into the upper side and the lower side of the mounting holes 4, when binding the reinforcing steel bars, extending the supporting column reinforcing steel bars 5 into the upper side and the lower side of the mounting holes 4, extending the underpinning beam reinforcing steel bars 7 into the supporting columns 2, and arranging stirrups 8 between the mounting holes 4; and simultaneously, the reinforced concrete lintel and the bearing column accommodating holes 3 at two sides are poured, the vibration is dense, the concrete in the bearing column accommodating holes 3 is finally solidified and then forms bearing columns 2 together with bearing column reinforcing steel bars 5, and the bearing columns 2 are arranged below two ends of the underpinning beam 6, so that the load transmitted by the underpinning beam 6 is effectively borne. The stability of the structure is improved.

S4: dismantling the bearing wall: the demolition of the wall body of the area to be excavated can be carried out only after the strength of the underpinning beam 6 and the supporting column 2 reaches 100% of the design strength, and the demolition is strictly prohibited from one time by following the sequence from two ends to the middle part and from the upper part to the lower part. It is desirable to avoid large vibrations during drilling and wall drilling to avoid compromising structural safety.

S5: integral reinforcement: after the strength of the underpinning beam 6 and the supporting column 2 reaches 100% of the design strength, templates are arranged at the overlapped parts of the two sides of the underpinning beam 6 and the upper part of the supporting column 2, concrete is poured in the templates, and after the concrete is finally set, the underpinning beam 6, the supporting column 2 and the underpinning beam form a whole through the drawknot of reinforcing steel bars and the adhesive force of the concrete, so that the force transfer of the structure is clear, and the underpinning beam and the supporting column jointly bear the upper load.

The invention adopts the technical scheme to produce the beneficial effects that:

1. the construction method for reinforcing the bearing wall of the raw soil house provided by the invention can retain the building characteristics and the building style of the original building to the greatest extent, and can be used for reinforcing the bearing wall structure of the raw soil house, so that the problems of low land utilization rate, low earthquake resistance, poor disaster resistance, poor durability and the like of the raw soil house are effectively solved, and the reinforcing construction of the bearing wall structure of the raw soil house can be realized under the condition that the existing raw soil house is not required to be dismantled and rebuilt. Meanwhile, compared with the traditional method for reinforcing the bearing wall of the raw soil house, the method has the advantages that the construction period is reduced by about 20 percent, and the construction cost is reduced by 20 to 30 percent.

2. The invention provides a structural construction method for reinforcing a bearing wall of a raw soil house, wherein a support column and a underpinning beam form a whole through the drawknot of a support column reinforcing steel bar and a underpinning beam reinforcing steel bar and the adhesive force of concrete, and the load transmitted by the underpinning beam is effectively born. The stability of the structure is improved.

3. According to the construction method for the structure for reinforcing the bearing wall of the raw soil house, the I-shaped supporting piece horizontally extends into the house through two ends of the mounting hole and is plugged into the mounting hole corresponding to the wall parallel to the bearing wall. The bottom and the top of the I-shaped supporting piece are tightly propped against the wall body of the mounting hole. The I-shaped supporting piece enables the force applied to the bearing wall to be dispersed to the wall bodies at the two ends and bear the upper load together. The structure integrity is good, and the bearing capacity and the stability under pressure are improved.

4. According to the construction method for the structure for reinforcing the bearing wall of the raw soil house, the frame consisting of the support columns, the support column steel bars and the I-shaped supporting pieces is effectively connected with the outer wall, so that the force transmission of the structure is clear, and meanwhile, the frame and the outer wall form a whole through the bonding force of the I-shaped supporting pieces and concrete, so that the cracking of the upper wall is avoided, the upper load is jointly born, and the structure safety is ensured.

5. The construction method for reinforcing the bearing wall of the raw soil house has the advantages of simple construction, strong economy and easy popularization, and meanwhile, the construction method can also be used for the construction reinforcing and reforming project of the raw soil structure and has wide application prospect.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention before disassembly and transformation;

FIG. 2 is a schematic perspective view of an embodiment of the present invention after disassembly and modification;

FIG. 3 is a block diagram of the frame of the present invention;

FIG. 4 is a top underpinned beam rebar tiling of the present invention;

FIG. 5 is a cross-sectional view of the frame construction of the present invention;

FIG. 6 is a side cross-sectional view of a underpinning beam reinforcement of the present invention;

FIG. 7 is a sectional view of the I-shaped support member of the present invention installed;

FIG. 8 is a top cross-sectional view of a support post reinforcement of the present invention;

FIG. 9 is a front view of the I-shaped support of the present invention;

in the figure: the support column comprises 1-I-shaped support piece, 2-support column, 3-support column accommodating hole, 4-mounting hole, 5-support column steel bar, 6-underpinning beam, 7-underpinning beam steel bar and 8-stirrup.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.