CN106836556B - Composite reinforcement cage truss supporting shear wall - Google Patents
Composite reinforcement cage truss supporting shear wall Download PDFInfo
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- CN106836556B CN106836556B CN201710159935.8A CN201710159935A CN106836556B CN 106836556 B CN106836556 B CN 106836556B CN 201710159935 A CN201710159935 A CN 201710159935A CN 106836556 B CN106836556 B CN 106836556B
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- truss
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- reinforcement cage
- steel reinforcement
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 101
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 141
- 239000010959 steel Substances 0.000 claims abstract description 141
- 239000004567 concrete Substances 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000009826 distribution Methods 0.000 abstract description 9
- 239000011150 reinforced concrete Substances 0.000 abstract description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to a composite reinforcement cage truss supported shear wall, which comprises a reinforcement cage and concrete, wherein the reinforcement cage is characterized by further comprising an inverted V-shaped reinforcement cage truss and an X-shaped reinforcement cage truss arranged at the middle lower part of the shear wall body besides conventional distribution bars and edge stirrups arranged according to standard requirements, and the inverted V-shaped reinforcement cage truss is connected with the X-shaped reinforcement cage truss. Compared with the prior art, the invention is derived from the result obtained by the topology optimization of the shear wall, and the arranged steel reinforcement cage truss is the main stress path of the shear wall. The composite truss is arranged on the stress path, and the significant bearing capacity improvement can be achieved by adding a small amount of reinforcing steel bars. The composite truss reinforced concrete shear wall has a more reasonable material distribution form, greatly optimizes the stress distribution of a common shear wall, and can remarkably improve the bearing capacity, the ductility and the energy consumption capacity of the shear wall.
Description
Technical Field
The invention relates to the field of building structure engineering, in particular to a composite reinforcement cage truss supporting shear wall.
Background
With the acceleration of the urban progress of society, but the population density of China is high, the cities develop to the high altitude, and the number of high-rise and super-high-rise building constructions is increased. The reinforced concrete shear wall has good vertical bearing capacity and good horizontal earthquake resistance, and can be widely applied to high-rise and super high-rise buildings.
The common concrete shear wall is generally composed of front and rear rows of distributed reinforcing steel meshes, and when the construction needs or special requirements exist, edge sealing stirrups are bound on the edges of the shear wall to form edge components. Under the action of vertical and horizontal loads, the shear wall is a bending shear failure type component. Due to the poor tensile strength of concrete, the edges of the shear wall will become weak areas under horizontal loading. The shear wall with the edge reinforcing steel bar cage can better improve the situation. The composite truss reinforced concrete shear wall structure is a bearing member with better stress performance, which is developed on the basis of a common concrete shear wall structure. Compared with the common concrete shear wall structure, the material can fully exert the performance of the material, has better anti-seismic bearing capacity, deformation performance and energy consumption capacity, and is suitable for being applied to multiple buildings such as multiple layers, high layers, super high layers and the like.
Patent CN102704594 discloses a steel-reinforced composite shear wall with built-in multi-steel-plate and support frame columns, namely, steel-reinforced composite frame columns are arranged at two ends of a wall body, and a hidden support steel plate is added into the multi-steel-plate in the wall body. The patent CN103184774 discloses a single-row reinforced concrete shear wall with crossed inclined bars and a manufacturing method thereof, wherein common concrete is adopted, hidden columns are arranged at two ends of the shear wall, the hidden column stirrups are encrypted within a height range of 1/3 wall from the bottom surface of the shear wall, crossed inclined bars are arranged in addition to a reinforcing mesh formed by horizontal bars and longitudinal bars of the shear wall, an included angle of 60 degrees is formed between the crossed inclined bars and the horizontal bars, the distance between the intersection of the outermost crossed inclined bars and the bottom surface of the shear wall and the outer surface of the wall is the thickness of a concrete protection layer, the lower parts of the crossed inclined bars are anchored in a foundation, the upper parts of the crossed inclined bars are anchored in hidden beams or hidden columns, and a symmetrical reinforced mode is adopted. Patent CN2775170 discloses a concealed lattice type steel bar concealed bracing shear wall, which consists of frame columns and a shear wall plate, wherein a steel bar net consisting of transverse and longitudinal steel bars is arranged in the shear wall plate, a steel bar inclined strut is additionally arranged on the inner side or the outer side of the steel bar net, and when double-row steel bar arrangement is adopted, pull-connection steel bars are used for pull-connection between the steel bar nets, and the concealed lattice type steel bar concealed bracing shear wall is characterized in that: the oblique steel bar bundles are adopted, and welding short steel bars which have a constraint function and are arranged in a lattice mode or an oblique web mode are arranged on the oblique steel bar bundles. The reinforcing steel bar inclined support fixedly arranged on the inner side or the outer side of the reinforcing steel bar net of the shear wall plate is shaped like a Chinese character ' V ', X ' or a splayed.
However, the arrangement mode of the reinforcement cages of the shear walls is not optimized, so that the utilization efficiency of the materials of the shear walls is low, and the working performance of the shear walls is not optimal.
Disclosure of Invention
The invention aims to provide a composite steel reinforcement cage truss supporting shear wall which is more reasonable in arrangement and better in rigidity and strength and aims to further improve the bearing performance of a reinforced concrete shear wall.
The invention can be realized by the following technical scheme: the reinforced concrete shear wall comprises a reinforced skeleton and concrete, wherein hidden beams can be arranged at the upper end or the lower end of the shear wall, the reinforced skeleton of the reinforced concrete shear wall comprises vertically distributed reinforced bars, horizontally distributed reinforced bars and edge constraint reinforced cages arranged on two sides of the shear wall, and the reinforced skeleton comprises an inverted V-shaped reinforced cage truss on the upper part and an X-shaped reinforced cage truss on the lower part.
According to the topological optimization result of the common shearing force, the stress path of the shearing wall in the stress process can be clearly obtained, and in order to enable the shearing wall to have better working performance, the adopted method is to strengthen the stress path by utilizing the reinforcement cage. The changed reinforcement cage enables the shear wall to have better strength and ductility.
The inverted V-shaped steel reinforcement cage truss comprises two obliquely arranged first steel reinforcement trusses, one end of each first steel reinforcement truss is located in the middle of the edge of the shear wall and can be anchored in a hidden beam at the top of the shear wall, and the other end of each first steel reinforcement truss is located at the middle upper part of the side edge of the wall.
Each first steel bar truss comprises a first longitudinal steel bar and a first stirrup, wherein the first longitudinal steel bars are obliquely arranged, the first stirrups are used for fixing the first longitudinal steel bar, the arrangement direction of the first longitudinal steel bar is the same as that of the first steel bar truss, and the first stirrups are perpendicular to the first longitudinal steel bar.
The top ends of the two first steel bar trusses of the inverted V-shaped steel bar cage truss are contacted or separated, when the top ends of the two first steel bar trusses are contacted, the inverted V-shaped steel bar cage truss is in an inverted V shape, and when the top ends of the two first steel bar trusses are separated, the inverted V-shaped steel bar cage truss is in a splayed shape.
The X-shaped steel reinforcement cage truss comprises two steel reinforcement trusses which are distributed in a crossing mode, the lower end of each second steel reinforcement is located at the position, close to the side edge, of the shear wall bottom, and the upper end of each second steel reinforcement cage is located at the side edge of the other side of the wall body.
The second steel bar truss comprises a second longitudinal steel bar for supporting the second steel bar truss and a second stirrup for fixing the second longitudinal steel bar.
The bottoms of the two second steel bar trusses are provided with haunching steel bars for reinforcing the connection between the second steel bar trusses and the bottom of the shear wall and reducing stress concentration, and the bottoms of the second steel bar trusses can be anchored in a constraint steel bar cage at the side edge of the shear wall or in a hidden beam at the bottom of the shear wall.
The inverted V-shaped and X-shaped steel reinforcement cage trusses which are obliquely arranged can bear a considerable part of the vertical and horizontal loads of the shear wall because the inverted V-shaped and X-shaped steel reinforcement cage trusses are arranged on the stress path of the inverted V-shaped and X-shaped steel reinforcement cage trusses, and plays a vital role in improving the bearing capacity of the shear wall and effectively transmitting the upper load.
The reinforced concrete shear wall's framework of steel reinforcement include vertical distribution reinforcing bar, horizontal distribution reinforcing bar and arrange the marginal restraint steel reinforcement cage in the shear wall both sides, with vertical distribution reinforcing bar and horizontal distribution reinforcing bar all vertically orientation upward set up the drawknot muscle, the lower extreme of inverted V-arrangement steel reinforcement cage truss and the both ends of X-shaped steel reinforcement cage truss all can with marginal restraint steel reinforcement cage is fixed.
The inverted V-shaped steel reinforcement cage truss and the X-shaped steel reinforcement cage truss are bound together with the vertically distributed steel reinforcement, the horizontally distributed steel reinforcement and the edge constraint steel reinforcement cage through steel wires to form an integrated steel reinforcement framework.
Compared with the prior art, the invention has the beneficial effects that: the arrangement of the steel reinforcement framework of the common shear wall is optimized, and the steel reinforcement cage trusses are arranged on the stress transmission path of the shear wall, so that the stressed steel reinforcement is more reasonably distributed, the performance of the components of the wall body on the stress transmission path is effectively enhanced, and the bearing capacity, the ductility and the energy consumption of the wall body are further improved.
Drawings
Fig. 1 is a schematic structural view of a reinforcement cage according to the present invention;
FIG. 2 is a schematic cross-sectional view of 1-1 of FIG. 1.
Wherein, 11 is a longitudinal reinforcement, 12 is a stirrup, 13 is a horizontal distribution reinforcement, 14 is a longitudinal reinforcement, 15 is a stirrup, 16 is an edge constraint reinforcement cage, 17 is a tie reinforcement, and 18 is a vertical distribution reinforcement.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
Examples
The structure of the composite steel reinforcement cage truss supporting shear wall is shown in fig. 1 and 2, and the reinforced concrete wall comprises a steel reinforcement framework and concrete.
Wherein, the steel reinforcement skeleton includes the steel reinforcement cage truss of reverse V-arrangement, X-arrangement steel reinforcement cage truss.
The inverted V-shaped steel bar cage truss comprises two obliquely arranged first steel bar trusses, one end of each first steel bar truss is located in the middle of the edge of the shear wall and can be anchored in a hidden beam at the top of the shear wall, and the other end of each first steel bar truss is located at the middle upper part of the side edge of the wall.
Each first steel bar truss comprises first longitudinal steel bars 11 which are obliquely arranged and first stirrups 12 which are used for fixing the first longitudinal steel bars 11, the arrangement direction of the first longitudinal steel bars 11 is the same as that of the first steel bar truss, and the first stirrups 12 are perpendicular to the first longitudinal steel bars 11. The type of the first longitudinal steel bars 11 used for the first steel bar truss can be common hot rolled ribbed steel bars, such as HRB400 and 10mm diameter, and high-strength steel bars can also be used; the type of the first stirrup 12 used may be a plain round first grade bar, such as HPB300, 6mm diameter.
The X-shaped steel reinforcement cage truss comprises two steel reinforcement trusses which are distributed in a crossing mode, the lower end of each steel reinforcement cage is located at the position, close to the side edge, of the shear wall bottom, and the upper end of each steel reinforcement cage is located at the side edge of the other side of the wall body. The second steel bar truss includes a second longitudinal steel bar 14 supporting the second steel bar truss and a second stirrup 15 for fixing the second longitudinal steel bar 14.
The type of the reinforcing steel bar used for the second longitudinal reinforcing steel bar 14 is HRB400, the diameter is 10mm, and the type of the second stirrup 15 is HPB300, the diameter is 6mm.
The reinforcement cage further comprises vertically distributed reinforcement bars 18 and horizontally distributed reinforcement bars 13 in the vertical direction, and tie reinforcement bars 17 are arranged in the direction perpendicular to the vertically distributed reinforcement bars 18 and the horizontally distributed reinforcement bars 13 on the horizontal plane. Edge constraint reinforcement cages 16 are also arranged at the two ends of the reinforcement cage
The model used for the vertically distributed steel bars 18 is HRB400 with the diameter of 10mm, and the model used for the horizontally distributed steel bars 13 is HPB300 with the diameter of 6mm.
Claims (4)
1. The composite steel reinforcement cage truss supporting shear wall comprises a steel reinforcement framework and concrete, wherein hidden beams can be arranged at the upper end or the lower end of the shear wall, the steel reinforcement framework of the composite steel reinforcement cage truss supporting shear wall comprises vertically distributed steel reinforcement, horizontally distributed steel reinforcement and edge constraint steel reinforcement cages arranged on two sides of the shear wall, and the composite steel reinforcement cage truss supporting shear wall is characterized in that the steel reinforcement framework comprises an inverted V-shaped steel reinforcement cage truss at the upper part and an X-shaped steel reinforcement cage truss at the lower part;
the inverted V-shaped steel reinforcement cage trusses comprise two obliquely arranged first steel reinforcement trusses, one end of each first steel reinforcement truss is positioned in the middle of the edge of the shear wall and can be anchored in a hidden beam at the top of the shear wall, and the other end of each first steel reinforcement truss is positioned at the middle upper part of the side edge of the wall;
the X-shaped steel reinforcement cage trusses comprise two second steel reinforcement trusses which are distributed in a crossing mode, the lower end of each second steel reinforcement truss is located at the position, close to the side edge, of the bottom of the shear wall, and the upper end of each second steel reinforcement truss is located at the side edge of the other side of the wall;
each first steel bar truss comprises first longitudinal steel bars which are obliquely arranged and first stirrups used for fixing the first longitudinal steel bars, wherein the arrangement direction of the first longitudinal steel bars is the same as that of the first steel bar trusses, and the first stirrups are perpendicular to the first longitudinal steel bars;
the top ends of the two first steel bar trusses of the inverted V-shaped steel bar cage truss are contacted or separated, when the top ends of the two first steel bar trusses are contacted, the inverted V-shaped steel bar cage truss is in an inverted V shape, and when the top ends of the two first steel bar trusses are separated, the inverted V-shaped steel bar cage truss is in a splayed shape;
the second steel bar truss comprises a second longitudinal steel bar for supporting the second steel bar truss and a second stirrup for fixing the second longitudinal steel bar.
2. The composite steel reinforcement cage truss supported shear wall of claim 1, wherein the bottoms of the two steel reinforcement cage trusses are provided with haunched steel bars for reinforcing the connection of the two steel reinforcement trusses and the bottom of the shear wall and reducing stress concentration, and the bottom of the two steel reinforcement trusses can be anchored in a constraint steel reinforcement cage at the side edge of the shear wall or in a hidden beam at the bottom of the shear wall.
3. The composite reinforcement cage truss supporting shear wall of claim 1, wherein tie bars are arranged in a direction perpendicular to both the vertically distributed reinforcement bars and the horizontally distributed reinforcement bars, and the lower end of the inverted V-shaped reinforcement cage truss and the two ends of the X-shaped reinforcement cage truss are both fixable to the edge-restraining reinforcement cage.
4. A composite steel reinforcement cage truss supported shear wall as in claim 3 wherein the inverted V-shaped steel reinforcement cage truss and the X-shaped steel reinforcement cage truss are bound together with vertically distributed steel reinforcement, horizontally distributed steel reinforcement and edge constraint steel reinforcement cages by steel wires to form an integrated steel reinforcement cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710159935.8A CN106836556B (en) | 2017-03-17 | 2017-03-17 | Composite reinforcement cage truss supporting shear wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710159935.8A CN106836556B (en) | 2017-03-17 | 2017-03-17 | Composite reinforcement cage truss supporting shear wall |
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| CN106836556A CN106836556A (en) | 2017-06-13 |
| CN106836556B true CN106836556B (en) | 2024-02-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110344316B (en) * | 2019-07-16 | 2024-03-26 | 中铁建设集团有限公司 | Ramp bridge steel bar structure and construction method thereof |
| CN110409665A (en) * | 2019-07-25 | 2019-11-05 | 中国十七冶集团有限公司 | A kind of combined type precast shear wall for assembled architecture |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1973115U (en) * | 1967-08-24 | 1967-11-23 | Baustahlgewebe Gmbh | LATTICE GIRDER FOR STRENGTHENING REINFORCED CONCRETE PANELS. |
| JP2002309680A (en) * | 2001-04-13 | 2002-10-23 | Ohmoto Gumi Co Ltd | Reinforced concrete framework corresponding to skeleton in-fill |
| CN2791137Y (en) * | 2005-05-13 | 2006-06-28 | 北京工业大学 | Concrete combine tube with built-in steel girder |
| CN1995579A (en) * | 2006-12-29 | 2007-07-11 | 北京工业大学 | Steel pipe concrete frame-steel truss-concrete combined shear wall and its manufacture method |
| CN201212190Y (en) * | 2008-07-01 | 2009-03-25 | 汪梦甫 | Mixed hidden support energy consumption double-limb shear wall |
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2017
- 2017-03-17 CN CN201710159935.8A patent/CN106836556B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1973115U (en) * | 1967-08-24 | 1967-11-23 | Baustahlgewebe Gmbh | LATTICE GIRDER FOR STRENGTHENING REINFORCED CONCRETE PANELS. |
| JP2002309680A (en) * | 2001-04-13 | 2002-10-23 | Ohmoto Gumi Co Ltd | Reinforced concrete framework corresponding to skeleton in-fill |
| CN2791137Y (en) * | 2005-05-13 | 2006-06-28 | 北京工业大学 | Concrete combine tube with built-in steel girder |
| CN1995579A (en) * | 2006-12-29 | 2007-07-11 | 北京工业大学 | Steel pipe concrete frame-steel truss-concrete combined shear wall and its manufacture method |
| CN201212190Y (en) * | 2008-07-01 | 2009-03-25 | 汪梦甫 | Mixed hidden support energy consumption double-limb shear wall |
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