CN114687474A - Box-type steel connecting structure and method for assembled concrete shear wall - Google Patents
Box-type steel connecting structure and method for assembled concrete shear wall Download PDFInfo
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- CN114687474A CN114687474A CN202210402047.5A CN202210402047A CN114687474A CN 114687474 A CN114687474 A CN 114687474A CN 202210402047 A CN202210402047 A CN 202210402047A CN 114687474 A CN114687474 A CN 114687474A
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- shear wall
- steel
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- embedded
- bolt hole
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 125
- 239000010959 steel Substances 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000003491 array Methods 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 1
- 238000010276 construction Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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Classifications
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
Abstract
The invention relates to an assembly type concrete shear wall box-shaped steel connecting structure and a method, wherein an upper shear wall and a lower shear wall of the structure are fixedly connected through a connecting node, the connecting node comprises pre-embedded box-shaped steel, pre-embedded channel steel and high-strength bolts, the bottom of the upper shear wall is fixedly connected to the pre-embedded box-shaped steel, the top of the lower shear wall is fixedly connected to the pre-embedded channel steel, and the pre-embedded box-shaped steel and the pre-embedded channel steel are fixedly connected together through the high-strength bolts through bolt hole arrays on the pre-embedded box-shaped steel and second bolt hole arrays on the pre-embedded channel steel. The technical scheme of the invention has the advantages of simple assembly, high efficiency and convenient disassembly, and greatly simplifies the complexity of the vertical connection of the assembled concrete shear wall structure.
Description
Technical Field
The invention relates to the field of wall body design in the field of constructional engineering, in particular to a box-type steel connecting structure and method for an assembled concrete shear wall.
Background
In order to further promote building industrialization and housing industrialization and accord with the concept of building energy conservation and emission reduction actively promoted in China at present, research and application of prefabricated concrete structures become hot problems concerned by the industry. In the assembled structure system, the shear wall structure has excellent bearing capacity and lateral movement resistance, and the rigidity and the shock resistance of a building can be greatly increased. The horizontal connection structure and performance between the upper shear wall and the lower shear wall in the prefabricated assembly type shear wall structure are the keys influencing the overall safety performance of the structure.
At present, the horizontal seam connection of an assembly type shear wall structure is divided into wet connection and dry connection, wherein the wet connection comprises cast-in-place belt connection, sleeve grouting connection and preformed hole slurry anchor lap joint; the dry connection comprises bolt connection, post-tensioned prestressing connection, key slot connection and Wall Shoes connection. Compared with wet connection, the dry connection of the horizontal joint has the advantages of reduction of secondary pouring in a construction site, small environmental pollution, high construction speed, high construction quality and the like. However, the connection mode has high construction and design difficulty and high requirement on installation precision, and the on-site installation quality is difficult to ensure
Disclosure of Invention
The invention aims to provide a vertical rigid connecting node of an assembly type concrete shear wall structure and a construction method, which are convenient to construct, simple to operate and superior in stress performance of the connecting node, and solve the problems in the horizontal joint connection of the existing assembly type shear wall structure.
In order to solve the problems, the invention adopts the technical scheme that: an assembled concrete shear wall box type steel connecting structure comprises an upper shear wall, a lower shear wall and connecting nodes which are vertically connected; the upper shear wall and the lower shear wall are fixedly connected through a connecting node, the connecting node comprises pre-embedded box type steel, pre-embedded channel steel and high-strength bolts, the bottom of the upper shear wall is fixedly connected to the pre-embedded box type steel, the top of the lower shear wall is fixedly connected to the pre-embedded channel steel, and the pre-embedded box type steel and the pre-embedded channel steel are fixedly connected together through the bolt hole arrays on the pre-embedded box type steel and the second bolt hole arrays on the pre-embedded channel steel through the high-strength bolts.
Furthermore, vertical steel bars in the upper shear wall are vertically welded to the upper surface of the embedded box section steel, and first bolt hole arrays which are transversely distributed are reserved on two sides of the embedded box section steel.
Furthermore, vertical steel bars in the lower shear wall are vertically welded to the lower surface of the embedded channel steel, and second bolt hole arrays which are transversely distributed are reserved on two sides of the embedded channel steel.
Furthermore, a first bolt hole array which is transversely distributed is reserved on two sides of a beam web plate of the embedded box type steel, a second bolt hole array which is transversely distributed is reserved on two sides of an embedded channel steel web plate, the first bolt hole array and the second bolt hole array are in one-to-one correspondence when in connection, a plurality of high-strength bolts penetrate through the first bolt hole array and the second bolt hole array, and the upper shear wall and the lower shear wall are fixedly connected through nuts.
Further, the diameter of the high-strength bolt is 1-1.5 mm smaller than the diameter of the first bolt hole and the diameter of the second bolt hole.
Further, the first bolt hole diameter is the same as the second bolt hole diameter.
Furthermore, the embedded box type steel beam and the embedded channel steel are mutually embedded when being connected, after the connection is completed, a 2mm gap is reserved between the steel plates on the inner sides of the two sides of the embedded channel steel and the two sides of the steel plate on the outer side of the embedded box type steel beam, and the lower bottom surface of the embedded box type steel beam can touch the upper top surface of the lower flange of the embedded channel steel.
A bolt connection method for an assembly type concrete shear wall box type connection structure adopts the assembly type concrete shear wall box type connection structure and comprises the following steps:
(1) providing an upper shear wall, wherein a pre-embedded box steel beam is horizontally and fixedly arranged at the bottom of the upper shear wall, and first bolt hole arrays are reserved on two sides of a web plate of the pre-embedded box steel beam;
(2) providing a lower shear wall, wherein the top of the lower shear wall is horizontally and fixedly provided with an embedded channel steel, and second bolt hole arrays are reserved on two sides of a channel steel web plate;
(3) hoisting the upper shear wall and the lower shear wall to a specified position, so that the first bolt hole arrays correspond to the second bolt hole arrays one to one;
(4) and inserting a plurality of high-strength bolts into the pre-embedded box steel beam reserved first bolt hole array and the pre-embedded channel steel reserved second bolt hole array from the inner side of the box steel beam, and fixing the pre-embedded channel steel through a nut.
The invention provides a box-type steel connecting structure of an assembly type concrete shear wall, which has the following beneficial effects compared with the existing assembly type concrete shear wall connecting structure:
1) the invention provides an assembled concrete shear wall box-type steel connecting structure which comprises an upper shear wall, a lower shear wall and box-type steel connecting nodes, wherein the connecting nodes are arranged between the upper shear wall and the lower shear wall and comprise pre-embedded box-type steel, pre-embedded channel steel and high-strength bolts, the pre-embedded box-type steel beams are fixedly arranged at the bottom of the upper shear wall, the pre-embedded channel steel is fixedly arranged at the top of the lower shear wall, the pre-embedded box-type steel and the pre-embedded channel steel are fixedly connected through the first bolt hole array and the second bolt hole array by the high-strength bolts, and the problem of poor connecting performance of the upper shear wall and the lower shear wall of the assembled concrete shear wall structure is solved.
2) The invention greatly simplifies the complexity of the connection of the upper shear wall and the lower shear wall of the fabricated concrete shear wall structure, simplifies the construction process, improves the construction efficiency and ensures the construction quality.
Drawings
FIG. 1 is a front view of a box-type connection structure for an assembled concrete shear wall according to an embodiment of the invention;
FIG. 2 is an isometric view of a box-type connection for an assembled concrete shear wall according to an embodiment of the present invention;
FIG. 3 is a side view of a box type connection structure for an assembled concrete shear wall according to an embodiment of the present invention;
FIG. 4 is an internal structural view of a box-type connection structure of an assembled concrete shear wall according to an embodiment of the invention;
fig. 5 is a structural diagram of a connection node of an assembly type concrete shear wall box-type connection structure according to an embodiment of the present invention;
description of reference numerals:
1, mounting a shear wall; 11: horizontally distributing ribs; 12: vertically distributing ribs; 13: hooping; 2: a lower shear wall; 3: connecting the nodes; 31: pre-burying box section steel; 32: embedding channel steel; 33: high-strength bolt.
Detailed Description
The connection node of the box-type steel connection structure for the fabricated concrete shear wall according to the present invention will be described in detail with reference to fig. 1 to 5, which are implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following examples, and those skilled in the art can modify and decorate the connection node without changing the spirit and content of the present invention.
Example (b):
referring to fig. 1 to 5, the invention provides an assembly type concrete shear wall box type connection structure, which includes an upper shear wall 1, a lower shear wall 2 and a connection node 3;
referring to fig. 4, the upper shear wall 1 includes horizontal distribution ribs 11, vertical distribution ribs 12, longitudinal steel bars in the embedded columns, and stirrups 13, the bottom of the upper shear wall 1 is horizontally provided with embedded box section steel 31, the vertical steel bars in the shear wall 1 are all vertically welded to the upper surface of the embedded box section steel 31, the lower end of the upper shear wall 1 is provided with a first bolt hole array which is transversely distributed, in this embodiment, two rows of bolt holes are reserved at the lower end of the upper shear wall 1, and the bolt holes have the same aperture and the same interval;
the structure of lower shear wall 2 is unanimous with the structure of last shear wall 1, also include the level to the distribution muscle, vertical distribution muscle, set up longitudinal reinforcement and stirrup in the hidden post at lower shear wall 2 both ends, the top level of lower shear wall 2 is provided with pre-buried channel-section steel 32, vertical reinforcement in lower shear wall 2 all welds perpendicularly in pre-buried channel-section steel 32's lower surface, the second bolt hole array that is transverse distribution is seted up to the upper end of lower shear wall 2, in this embodiment, two rows of bolt holes are reserved to the upper end of lower shear wall 2, the aperture of all bolt holes is unanimous, the interval is the same. In this embodiment, in order to solve the problem that the anchor bars are sheared and slide due to insufficient shear strength of the longitudinal bars and the anchor bars of the existing fabricated concrete shear wall, the vertical reinforcing bars such as the vertical distribution bars and the stirrups in the upper shear wall 1 are all welded on the embedded box steel, and the vertical reinforcing bars such as the vertical distribution bars and the stirrups in the lower shear wall 2 are all welded on the embedded channel steel;
in the design, the cross sections, the thickness of reinforcing bars and embedded steel plates, the number and the positions of bolts, the specification of the section steel and the reinforcing bars of the embedded columns of the upper shear wall and the lower shear wall are determined according to the structural bearing capacity and the deformation requirement, in the embodiment, the size of the assembled concrete shear wall formed by the upper shear wall 1 and the lower shear wall 2 is 1800mm multiplied by 900mm multiplied by 200mm, the cross sections of the embedded columns at two ends are 150mm multiplied by 135mm, the longitudinal steel bars in the embedded columns in the shear wall are 6C 10 steel bars, and the specification of the stirrup is A6@100 double-limb hoop. The horizontal distribution ribs and the vertical distribution ribs of the shear wall adopt twisted steel bars, the specification of the twisted steel bars is C8@100, and the number of the twisted steel bars is 2 in total along the height direction of the section. And both the embedded box steel and the embedded channel steel adopt Q355 steel.
The connecting node 3 is arranged between the upper shear wall 1 and the lower shear wall 2, the connecting node 3 comprises pre-embedded box section steel 31, pre-embedded channel steel 32 and high-strength bolts 33, the pre-embedded box section steel 31 is pre-embedded in the lower surface of the upper shear wall 1, the pre-embedded channel steel 32 is pre-embedded in the upper surface of the lower shear wall 2, first bolt holes in the pre-embedded box section steel are matched with second bolt holes in the pre-embedded channel steel, the high-strength bolts 33 penetrate through the bolt holes from the inner side of the pre-embedded box section steel beam, and the upper shear wall and the lower shear wall are fixedly connected through nuts outside the pre-embedded channel steel;
referring to fig. 5, in the present embodiment, box-embedded steel 31 is embedded at the lower end of the upper shear wall 1, and channel steel 32 is embedded at the upper end of the lower shear wall 2, and when connecting, the box-embedded steel 31 is inserted into the channel of the channel steel 32, the first bolt holes at the two sides of the box-embedded steel 31 are aligned with the second bolt holes at the two sides of the channel steel 32, and then the two are connected into a whole by high-strength bolts 33.
Claims (8)
1. The utility model provides an assembled concrete shear force wall box steel connection structure which characterized in that: the shear wall comprises an upper shear wall, a lower shear wall and a connecting node which are vertically connected; the upper shear wall and the lower shear wall are fixedly connected through a connecting node, the connecting node comprises pre-embedded box type steel, pre-embedded channel steel and high-strength bolts, the bottom of the upper shear wall is fixedly connected to the pre-embedded box type steel, the top of the lower shear wall is fixedly connected to the pre-embedded channel steel, and the pre-embedded box type steel and the pre-embedded channel steel are fixedly connected together through the bolt hole arrays on the pre-embedded box type steel and the second bolt hole arrays on the pre-embedded channel steel through the high-strength bolts.
2. The fabricated concrete shear wall box-type steel connection structure of claim 1, wherein: vertical reinforcing bars in the upper shear wall are vertically welded to the upper surface of the embedded box section steel, and first bolt hole arrays which are transversely distributed are reserved on two sides of the embedded box section steel.
3. The fabricated concrete shear wall box-type steel connection structure of claim 1, wherein: vertical reinforcing steel bars in the lower shear wall are vertically welded to the lower surface of the embedded channel steel, and second bolt hole arrays which are transversely distributed are reserved on two sides of the embedded channel steel.
4. The fabricated concrete shear wall box-type steel connection structure of claim 1, wherein: the high-strength steel box comprises a beam web plate, pre-buried box steel and high-strength bolts, wherein first bolt hole arrays which are transversely distributed are reserved on two sides of the beam web plate of the pre-buried box steel, second bolt hole arrays which are transversely distributed are reserved on two sides of the pre-buried box steel web plate, the first bolt hole arrays and the second bolt hole arrays correspond to each other one by one when connected, the high-strength bolts penetrate through the first bolt hole arrays and the second bolt hole arrays, and the upper shear wall and the lower shear wall are fixedly connected through nuts.
5. The fabricated concrete shear wall box-type connection structure according to claim 1, wherein: the diameter of the high-strength bolt is 1-1.5 mm smaller than the diameter of the first bolt hole and the diameter of the second bolt hole.
6. The fabricated concrete shear wall box-type connection structure according to claim 1, wherein: the first bolt hole diameter is the same as the second bolt hole diameter.
7. The fabricated concrete shear wall box-type connection structure according to claim 1, wherein: the embedded box type steel beam and the embedded channel steel are mutually embedded when being connected, after the connection is completed, gaps of 2mm are reserved between the steel plates on the inner sides of the two sides of the embedded channel steel and the two sides of the steel plate on the outer side of the embedded box type steel beam respectively, and the lower bottom surface of the embedded box type steel beam can touch the upper top surface of the lower flange of the embedded channel steel.
8. The bolt connection method for the box-type connection structure of the fabricated concrete shear wall adopts the box-type connection structure of the fabricated concrete shear wall, and is characterized by comprising the following steps of:
(1) providing an upper shear wall, wherein a pre-embedded box steel beam is horizontally and fixedly arranged at the bottom of the upper shear wall, and first bolt hole arrays are reserved on two sides of a web plate of the pre-embedded box steel beam;
(2) providing a lower shear wall, wherein the top of the lower shear wall is horizontally and fixedly provided with an embedded channel steel, and second bolt hole arrays are reserved on two sides of a web plate of the channel steel;
(3) hoisting the upper shear wall and the lower shear wall to a specified position, so that the first bolt hole arrays correspond to the second bolt hole arrays one to one;
(4) and inserting a plurality of high-strength bolts into the pre-embedded box steel beam reserved first bolt hole array and the pre-embedded channel steel reserved second bolt hole array from the inner side of the box steel beam, and fixing the pre-embedded channel steel through a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210402047.5A CN114687474A (en) | 2022-04-18 | 2022-04-18 | Box-type steel connecting structure and method for assembled concrete shear wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210402047.5A CN114687474A (en) | 2022-04-18 | 2022-04-18 | Box-type steel connecting structure and method for assembled concrete shear wall |
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| CN114687474A true CN114687474A (en) | 2022-07-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101558207A (en) * | 2006-08-01 | 2009-10-14 | 温布利创新有限公司 | Reinforced masonry panel structures |
| CN202787600U (en) * | 2012-08-08 | 2013-03-13 | 沈阳建筑大学 | Concrete laminated slab floorslab with anti-shearing key and prefabricated structure thereof |
| CN109898667A (en) * | 2019-03-22 | 2019-06-18 | 中南大学 | A kind of the assembled RC shear wall structure and its construction method of dry type connection |
| CN112609860A (en) * | 2020-11-17 | 2021-04-06 | 四川省振控科技有限公司 | Novel full-assembly reinforced concrete shear wall and manufacturing method thereof |
| CN113530013A (en) * | 2021-08-24 | 2021-10-22 | 西安建筑科技大学 | Horizontal joint connecting structure of assembled composite wallboard and construction method thereof |
-
2022
- 2022-04-18 CN CN202210402047.5A patent/CN114687474A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101558207A (en) * | 2006-08-01 | 2009-10-14 | 温布利创新有限公司 | Reinforced masonry panel structures |
| CN202787600U (en) * | 2012-08-08 | 2013-03-13 | 沈阳建筑大学 | Concrete laminated slab floorslab with anti-shearing key and prefabricated structure thereof |
| CN109898667A (en) * | 2019-03-22 | 2019-06-18 | 中南大学 | A kind of the assembled RC shear wall structure and its construction method of dry type connection |
| CN112609860A (en) * | 2020-11-17 | 2021-04-06 | 四川省振控科技有限公司 | Novel full-assembly reinforced concrete shear wall and manufacturing method thereof |
| CN113530013A (en) * | 2021-08-24 | 2021-10-22 | 西安建筑科技大学 | Horizontal joint connecting structure of assembled composite wallboard and construction method thereof |
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