Corner intersection structure of newly-added wall body and existing wall body

Abstract

The utility model relates to a corner intersection structure of a newly-added wall body and an existing wall body. Comprising an existing wall body, a newly-added wall body vertically fixed to the existing wall body, constructional columns fixed to the end of the existing wall body and the side face of the newly-added wall body, first tying pieces tied to the existing wall body and the newly-added wall body, and second tying pieces tied to the constructional columns, the newly-added wall body and the existing masonry wall body. And a third tying piece is tied between the constructional column and the existing wall body. According to the utility model, the constructional columns and the tie pieces are arranged between the existing wall body and the newly-added wall body, so that the technical problem that the reinforcing structure and the construction method are complicated when the intersection corner part of a new wall body and an old wall body is constructed in the prior art is solved. By means of reinforcing methods such as the tie screws and the tie steel bars which are additionally arranged at the intersection positions of the newly-added wall body and the ends of the existing wall body, under the condition that the structure of the existing wall body is not damaged, the integrality and the anti-seismic performance of the new wall body and the old wall body are enhanced, construction is easy and convenient, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a structure at the intersection of a newly added wall and an existing wall corner. Background Art

[0002] With the acceleration of urbanization, many existing buildings have not reached their service life. However, the performance indicators of old houses are difficult to meet the requirements of current working or living conditions for various basic needs of various new working conditions, and there are safety hazards. If the buildings are demolished and rebuilt or new buildings are built, it will take a long time and cost a lot. Appropriate reinforcement measures need to be taken for some houses to enhance the bearing capacity of the house structure and improve the overall stability, which can greatly reduce the amount of materials and labor, shorten the construction period, and reduce costs. However, when the existing reinforcement measures are constructed at the intersection of the new and old walls, the reinforcement structure and construction methods are complicated, which leads to a longer construction period and higher cost. Utility Model Content

[0003] In view of the deficiencies in the above-mentioned prior art, the utility model provides a structure for the intersection of a new wall and an existing wall corner, which solves the technical problems of complex reinforcement structure and construction method when constructing the corner where the new and old walls intersect in the prior art.

[0004] In the first aspect, the utility model discloses a structure for the intersection of a newly added wall and an existing wall at a corner, comprising an existing wall, a newly added wall vertically fixed to the existing wall, structural columns fixed to the ends of the existing wall and the sides of the newly added wall, a first anchor connecting the existing wall and the newly added wall, and a second anchor connecting the structural column, the newly added wall and the existing masonry wall.

[0005] The structure of the intersection of the newly added wall and the existing wall at the corner of the utility model is further improved in that a third anchoring piece is provided between the structural column and the existing wall.

[0006] The structure of the intersection of the newly added wall and the existing wall corner of the utility model is further improved in that the number of the third anchors is multiple, and the multiple third anchors are evenly spaced along the vertical direction. The number of the first anchors is multiple, and the multiple first anchors are evenly spaced along the vertical direction.

[0007] The structure of the intersection of the newly added wall and the existing wall corner of the utility model is further improved in that the number of the first anchors is multiple groups, and the multiple groups of first anchors are evenly spaced and arranged along the vertical direction.

[0008] The structure of the intersection of the new wall and the existing wall corner of the utility model is further improved in that the first anchoring member is a tie screw, the first end of the tie screw is formed with a hook and anchored inside the new wall, the second end of the tie screw is threaded with a nut, and a pad is inserted on the tie screw between the nut and the existing wall.

[0009] The structure of the intersection of the newly added wall and the existing wall at the corner of the utility model is further improved in that a groove for accommodating the end of the tie screw, the pad and the nut is opened on the existing wall, and the groove is filled with cement mortar.

[0010] The structure of the intersection of the newly added wall and the existing wall corner of the utility model is further improved in that the number of the second anchors is multiple, and the multiple second anchors are evenly spaced along the vertical direction.

[0011] The structure of the intersection of the newly added wall and the existing wall corner of the utility model is further improved in that the second anchor is a steel bar, the first end of the steel bar forms a first bent section anchored in the structural column, and the second end of the steel bar passes through the newly added wall to the inside of the existing wall and forms a second bent section anchored to the inside of the existing wall.

[0012] The structure of the intersection of the newly added wall and the existing wall at the corner of the utility model is further improved in that a slot is opened on the existing wall, the bent section is located in the slot, and the slot is filled with concrete.

[0013] In the second aspect, the utility model also provides a construction method for the structure at the intersection of the corner of the new wall and the existing wall as described above, comprising the following steps: installing a first anchor in the existing wall, and extending the first anchor to the position of the new wall to be constructed; tying the steel bars of the structural column, fixing the second anchor on the steel bars of the structural column, and passing the second anchor through the position of the new wall to be constructed and anchored to the existing wall; constructing the new wall, anchoring the first anchor and the second anchor inside the new wall; casting the structural column, anchoring the second anchor inside the structural column.

[0014] Compared with the existing technology, the utility model has a positive and obvious effect. The utility model solves the technical problem of complex reinforcement structure and construction method when constructing the intersection of the new and old walls in the existing technology by setting structural columns and tie pieces between the existing wall and the newly added wall. The utility model strengthens the integrity and seismic performance of the new and old walls without destroying the existing wall structure by adding tie screws, tie steel bars and other reinforcement methods at the intersection of the newly added wall and the end of the existing wall, and the construction is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a transverse cross-sectional view of the structure at the intersection of the newly added wall and the existing wall corner of the utility model.

[0017] Figure 2 for Figure 1 Section view along line AA.

[0018] Figure 3 for Figure 1 Sectional view along line BB. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 to Figure 3 As shown, the utility model provides a structure at the corner intersection of a newly added wall 2 and an existing wall 1, including an existing wall 1, a newly added wall 2 vertically fixed to the existing wall 1, a structural column 3 fixed to the end of the existing wall 1 and the side of the newly added wall 2, a first anchor 4 tied to the existing wall 1 and the newly added wall 2, and a second anchor 5 tied to the structural column 3, the newly added wall 2 and the existing masonry wall. In this embodiment, the newly added wall 2 is a brick masonry wall with a wall thickness of 240 mm, and the masonry material is concrete porous bricks. The structural column 3 is a reinforced concrete structure with a concrete strength grade of C25. The thickness of the existing wall 1 is 240 mm.

[0021] Preferably, a third anchor 6 is tied between the structural column 3 and the existing wall 1. The third anchor 6 is a steel bar, which is anchored in the structural column 3 and the existing wall 1 by planting steel bars. One end of the third anchor steel bar has a bend and is anchored in the structural column 3, and the other end is a straight section, and the length of the straight section is not less than 350 mm.

[0022] Preferably, there are multiple third anchors 6 , and the multiple third anchors 6 are evenly spaced apart along the vertical direction, so that the structural column 3 can evenly apply a tensioning force to the existing wall 1 .

[0023] Preferably, there are multiple groups of the first anchors 4, and the multiple groups of the first anchors 4 are evenly spaced apart along the vertical direction, so that the newly added wall 2 can evenly apply a tensioning force to the existing wall 1.

[0024] Preferably, the first anchor 4 is a tie screw, a hook is formed at the first end of the tie screw and is anchored inside the newly added wall 2, a nut is screwed at the second end of the tie screw, and a pad 7 is provided on the tie screw between the nut and the existing wall 1. The pad 7 is a steel pad 7 with a size of 120 mm×8 mm (length×width), which is used to fix the tie screw and play a role in strengthening the connection between the newly added wall 2 and the existing wall 1.

[0025] Preferably, Figure 1 and Figure 2 As shown, a groove for accommodating the end of the tie screw, the pad 7 and the nut is provided on the existing wall 1, and the groove is filled with cement mortar 8. There are at least two tie screws in each group of first tie rods. In this embodiment, the size of the groove is 150×150×30 (length, width and thickness), and there are two D25 (diameter 25mm) drill holes 10 in the groove, and the center distance of the drill holes 10 is 150mm. Each group of first tie rods includes two tie screws, which are passed through the existing wall 1 through the drill holes 10, and the tie between the newly added wall 2 and the existing wall 1 is achieved by fixing the nut of the pad 7.

[0026] Preferably, the number of the second anchors 5 is multiple, and the multiple second anchors 5 are evenly spaced along the vertical direction, so that the structural column 3, the newly added wall 2 and the existing wall 1 can evenly apply a tensile force to the existing wall 1. The vertical spacing of the second anchors 5 does not exceed 1 / 3 of the floor height, such as Figure 3 As shown, the second anchors 5 between the two floors 11 are distributed schematically, which are used to enhance the integrity of the newly added structural columns 3 and the existing wall 1.

[0027] Preferably, Figure 1 and Figure 3 As shown, the second anchor 5 is a steel bar, the first end of which is formed with a first bent section and anchored in the structural column 3, and the second end of the steel bar passes through the newly added wall 2 to the inside of the existing wall 1 and forms a second bent section and anchored in the inside of the existing wall 1. The length of the first bent section and the second bent section are not less than 120 mm, and the bending directions of the two ends are vertical angles.

[0028] Preferably, a slot 9 is provided on the existing wall 1 , the bending section is located in the slot 9 , and the slot 9 is filled with concrete, thereby ensuring that the bending section is firmly fixed to the existing wall 1 .

[0029] On the other hand, the utility model also provides a construction method for the structure at the corner intersection of the newly added wall 2 and the existing wall 1 as described above, comprising the following steps: installing a first anchor 4 in the existing wall 1, and extending the first anchor 4 to the position of the newly added wall 2 to be constructed; tying the steel bars of the structural column 3, fixing the second anchor 5 on the steel bars of the structural column 3, and passing the second anchor 5 through the position of the newly added wall 2 to be constructed and anchored to the existing wall 1; constructing the newly added wall 2, anchoring the first anchor 4 and the second anchor 5 inside the newly added wall 2; casting the structural column 3, anchoring the second anchor 5 inside the structural column 3.

[0030] Specifically, during construction, a 150×150×30 groove is cut at the end of the existing brick wall to place and fix the steel pad 7. Two D25 holes are drilled in the groove, and then the tie bolt is installed. The tie bolt passes through the wall from the hole and penetrates into the newly added brick wall. The length of the tie bolt extending into the newly added brick wall is not less than 500mm, and the vertical spacing does not exceed 500mm. Then the end of the tie bolt passes through the steel pad 7 and is fixed with bolts. Finally, the groove is smoothed with 1:3 cement mortar 8.

[0031] Tie up the reinforcement bars of the newly added structural column 3. During the tying process, tie up the second anchor 5 into the structural column 3, with the bend and anchor direction of the first bent section of the second anchor 5 facing downward. The other side of the anchor bars with bends at both ends is bent and anchored into the reserved opening of the existing wall 1. The size of the reserved opening is not less than 120×120×180 (180mm is the depth of the reserved hole). The bend and anchor direction of the second bent section of the second anchor 5 is horizontal. The reserved opening is finally filled with concrete of grade C20. The straight section length of the second anchor 5 is not less than 500mm. The third anchor 6 is implanted into the existing wall 1 by the anchoring method. The anchoring depth is not less than 120mm, and the straight section length of the third anchor 6 is not less than 350mm.

[0032] After the tie bolt, the second tie member 5 and the third tie member 6 are set, the newly added wall 2 is constructed. The thickness of the newly added brick masonry wall is 240 mm, and the masonry material is concrete porous brick. When the newly added wall 2 is constructed, the tie bolt is built into the wall.

[0033] New reinforced concrete structural columns are set at the intersection of the new brick masonry wall and the existing brick masonry wall. Before pouring the concrete of the structural column, the third anchor installed by the embedded reinforcement method needs to be subjected to a pull-out test. After the test is passed and the steel bars of the structural column are accepted, the formwork support and concrete pouring construction can be carried out.

[0034] The utility model solves the technical problem of complicated reinforcement structure and construction method in the prior art when constructing the intersection of the new and old walls by setting structural columns and tie pieces between the existing wall and the newly added wall. The utility model enhances the integrity and earthquake resistance of the new and old walls without destroying the existing wall structure by adding tie screws, tie steel bars and other reinforcement methods at the intersection of the newly added wall and the end of the existing wall, and the construction is simple and efficient. The construction method of the utility model is simple, short in construction period and low in cost. The original structure can be reinforced and renovated without demolishing or destroying the original structure, thereby improving the bearing capacity and overall stability of the house structure and extending the service life of the house. It can not only improve the safety performance of the house, but also save a lot of maintenance and reconstruction costs, and can also be used to protect urban historical buildings and cultural heritage.

[0035] The parts not involved in the present utility model are the same as the prior art or can be implemented by the prior art. The above is only the preferred embodiment of the present utility model, and does not limit the present utility model in any form. Although the present utility model has been disclosed as the preferred embodiment, it is not used to limit the present utility model. Any technician familiar with this profession can make some changes or modify the technical content disclosed above to an equivalent embodiment of equivalent changes without departing from the scope of the technical solution of the present utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still belongs to the scope of the technical solution of the present utility model.

Claims

1. A structure for the intersection of a newly added wall and an existing wall corner, characterized in that: It includes an existing wall, a newly added wall vertically fixed to the existing wall, a structural column fixed to the end of the existing wall and the side of the newly added wall, a first anchor connecting the existing wall and the newly added wall, and a second anchor connecting the structural column, the newly added wall and the existing wall.

2. The structure of the intersection of a newly added wall and an existing wall corner according to claim 1, characterized in that: A third anchor is provided between the structural column and the existing wall.

3. The structure of the intersection of a newly added wall and an existing wall corner according to claim 2, characterized in that: There are multiple third anchors, and the multiple third anchors are evenly spaced apart in the vertical direction.

4. The structure of the intersection of the newly added wall and the existing wall corner according to claim 3 is characterized in that: The first anchors are provided in a plurality of groups, and the plurality of groups of the first anchors are evenly spaced apart in the vertical direction.

5. The structure of the intersection of a newly added wall and an existing wall corner according to claim 1, characterized in that: The first anchor is a bolt, a hook is formed at the first end of the bolt and is anchored inside the newly added wall, a nut is screwed at the second end of the bolt, and a pad is provided on the bolt between the nut and the existing wall.

6. The structure for the intersection of a newly added wall and an existing wall according to claim 5, characterized in that: The existing wall is provided with a groove for accommodating the end of the tie screw, the pad and the nut, and the groove is filled with cement mortar.

7. The structure of the intersection of a newly added wall and an existing wall corner according to claim 1, characterized in that: There are multiple second anchors, and the multiple second anchors are evenly spaced apart vertically.

8. The structure of the intersection of a newly added wall and an existing wall corner according to claim 1, characterized in that: The second anchor is a steel bar, the first end of which is formed with a first bent section and anchored in the structural column, and the second end of which passes through the newly added wall to the inside of the existing wall and forms a second bent section and anchored in the inside of the existing wall.

9. The structure for the intersection of a newly added wall and an existing wall corner according to claim 8, characterized in that: A slot is provided on the existing wall, the bent section is located in the slot, and the slot is filled with concrete.

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