CN108343176B - Prefabricated assembled hybrid shear wall structure - Google Patents
Prefabricated assembled hybrid shear wall structure Download PDFInfo
- Publication number
- CN108343176B CN108343176B CN201810396448.8A CN201810396448A CN108343176B CN 108343176 B CN108343176 B CN 108343176B CN 201810396448 A CN201810396448 A CN 201810396448A CN 108343176 B CN108343176 B CN 108343176B
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- wall body
- shear
- wall
- cast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000011065 in-situ storage Methods 0.000 claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 238000010276 construction Methods 0.000 claims abstract description 39
- 239000004567 concrete Substances 0.000 claims description 33
- 238000005266 casting Methods 0.000 claims description 24
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 238000009417 prefabrication Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 25
- 230000002787 reinforcement Effects 0.000 description 6
- 238000009415 formwork Methods 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 229910000746 Structural steel Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010399 three-hybrid screening Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010397 one-hybrid screening Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
-
- 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
- E04B2/84—Walls made by casting, pouring, or tamping in situ
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a prefabricated assembled hybrid shear wall structure which comprises an upper shear wall and a lower shear wall, wherein a superposed horizontal member is constructed between the upper shear wall and the lower shear wall. The upper shear wall comprises an upper prefabricated wall body and upper cast-in-situ wall bodies positioned on two sides of the upper prefabricated wall body. The lower shear wall comprises a lower prefabricated wall body and lower cast-in-situ wall bodies positioned on two sides of the lower prefabricated wall body. Shear keys are connected between the upper prefabricated wall body and the lower prefabricated wall body, and vertical ribs in the upper prefabricated wall body and the lower prefabricated wall body are not connected with each other. The profile steel in the upper and lower cast-in-situ wall bodies which are opposite from each other is connected with each other through a horizontal connecting plate. The transverse ribs in the upper prefabricated wall body extend into the upper cast-in-situ wall body and are fixedly connected with the section steel in the upper cast-in-situ wall body, and the transverse ribs in the lower prefabricated wall body extend into the lower cast-in-situ wall body and are fixedly connected with the section steel in the lower cast-in-situ wall body. The invention has reasonable structural design and good stress performance, greatly simplifies the construction process, improves the assembly efficiency, reduces the construction cost and fully plays the advantage of high construction speed of the assembled building.
Description
Technical Field
The invention relates to a prefabricated assembled hybrid shear wall structure, and belongs to the technical field of shear walls.
Background
The wall connection technology among the prefabricated shear walls is the key of the prefabricated reinforced concrete shear wall system, and how to design a connection mode with good stress performance, reasonable construction measures and simple and convenient construction and installation is always a difficult point of the design of the shear walls.
At present, in the vertical installation construction process of the prefabricated reinforced concrete shear wall, vertical ribs in non-edge areas of an upper shear wall structure and a lower shear wall structure are connected at joints in a sleeve grouting, mechanical, welding, indirect anchoring and other modes, and vertical ribs in edge areas are connected in a mode of binding site reinforcing steel bars and pouring concrete. The method has the advantages of high requirements on site operation and construction precision, high construction difficulty, large site construction quantity, low construction speed and difficult control of construction quality, directly causes the increase of the manufacturing cost of the fabricated shear wall and the extension of the construction period, has low assembly efficiency, and cannot fully exert the advantages of green, quick, standardized production, energy conservation, environmental protection and high degree of mechanization of the fabricated building.
Disclosure of Invention
The invention aims to provide a prefabricated assembled hybrid shear wall structure which has reasonable structural design and good stress performances such as shearing resistance and bearing capacity, greatly simplifies construction procedures, improves assembly efficiency, reduces construction cost, and fully exerts the advantage of high construction speed of an assembled building.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a prefabricated assembled hybrid shear wall structure which characterized in that: the construction method comprises an upper shear wall and a lower shear wall, wherein a superposed horizontal member is constructed between the upper shear wall and the lower shear wall; the upper shear wall comprises an upper prefabricated wall body and upper cast-in-situ wall bodies positioned on two sides of the upper prefabricated wall body; the lower shear wall comprises a lower prefabricated wall body and lower cast-in-situ wall bodies positioned on two sides of the lower prefabricated wall body; shear keys are connected between the upper prefabricated wall body and the lower prefabricated wall body, and vertical ribs in the upper prefabricated wall body and the lower prefabricated wall body are not connected with each other; the profile steels in the upper cast-in-situ wall body and the lower cast-in-situ wall body which are opposite from each other are mutually connected through a horizontal connecting plate; the transverse ribs in the upper prefabricated wall body extend into the upper cast-in-situ wall body and are fixedly connected with the section steel in the upper cast-in-situ wall body, and the transverse ribs in the lower prefabricated wall body extend into the lower cast-in-situ wall body and are fixedly connected with the section steel in the lower cast-in-situ wall body.
The invention has the advantages that:
1. the invention has reasonable structural design, good stress performance under the action of vertical and lateral loads and good anti-seismic effect. On one hand, the structural steel design of the edge area enables the whole hybrid shear wall structure to have stronger shearing resistance, tensile resistance and compression resistance, and on the other hand, the vertical connection between the upper and lower structural steel adopts a strong welding mode, so that the connection reliability is ensured, and certain alignment deviation between the structural steel can be allowed.
2. Shear keys are arranged at joints of the upper prefabricated wall body and the lower prefabricated wall body, so that the hybrid shear wall structure has good shear bearing capacity at the horizontal joint position.
3. In the non-edge area of the hybrid shear wall structure, the superposed horizontal members (superposed plates/beams) can be directly placed on the lower shear wall without considering the influence on the vertical ribs, so that the construction convenience is greatly improved.
4. In the invention, the vertical ribs of the upper prefabricated wall body and the lower prefabricated wall body are not connected up and down, so that the material and construction cost are greatly reduced, the construction convenience is improved, the section steel adopted in the edge area is connected into a full prefabricated assembly system, the assembly efficiency of the whole mixed shear wall structure is greatly improved, the construction is more convenient and quicker, and the advantage of high assembly type building construction speed is fully exerted.
5. The upper and lower prefabricated walls and the section steel of the mixed shear wall structure are prefabricated in advance in factories, then vertical connection and horizontal connection are carried out on site, the upper and lower cast-in-situ wall bodies are cast on site and connected with the upper and lower prefabricated walls, and the problems that the mixed shear wall structure mainly comprises cast-in-site and the advantages of the assembled shear wall structure cannot be fully exerted are solved.
6. The stress performance of the mixed shear wall structure under the vertical load action is equal to that of a common reinforced concrete shear wall structure, and the stress performance under the lateral load action is between the common reinforced concrete shear wall structure and the frame-supporting system structure, but importantly, the mixed shear wall structure greatly simplifies the construction process, improves the assembly efficiency, reduces the construction cost, and fully exerts the advantage of high construction speed of the assembled building.
Drawings
FIG. 1 is a schematic illustration of a prefabricated hybrid shear wall structure of the present invention.
Fig. 2 is an enlarged schematic view of fig. 1, A-A, partially in section.
Fig. 3 is an enlarged schematic view of fig. 1 in a partial section B-B.
FIG. 4 is an enlarged schematic view of section C-C of FIG. 1.
FIG. 5 is a schematic view of the connection between adjacent upper shear walls.
Fig. 6 is a schematic view of the connection between adjacent section steel in fig. 5.
Detailed Description
As shown in fig. 1 to 6, the prefabricated hybrid shear wall structure of the present invention includes upper and lower shear walls 20, 10, between which a superimposed horizontal member 70 is constructed, the superimposed horizontal member 70 extending through the entire hybrid shear wall structure in the width direction of the hybrid shear wall structure of the present invention; the upper shear wall 20 comprises an upper prefabricated wall 21 formed by pouring concrete in advance and an upper cast-in-place wall 22 formed by pouring concrete in situ on two sides of the upper prefabricated wall 21; the lower shear wall 10 comprises a lower prefabricated wall 11 formed by pouring concrete in advance and a lower cast-in-place wall 12 formed by pouring concrete in situ on two sides of the lower prefabricated wall 11, wherein each wall body in the upper and lower shear walls 20 and 10 corresponds to each other one by one, namely, an upper prefabricated wall body 21 is opposite to the lower prefabricated wall body 11 from top to bottom, and each upper cast-in-place wall body 22 is opposite to the corresponding lower cast-in-place wall body 12 from top to bottom; shear keys 60 are connected between the upper and lower prefabricated walls 21, 11, and vertical ribs 40 in the upper and lower prefabricated walls 21, 11 are not connected with each other; section steel 100 in upper and lower cast-in- situ walls 22, 12, which are opposite from each other, are connected to each other by a horizontal connecting plate 120; the transverse ribs 30 in the upper prefabricated wall body 21 extend into the upper cast-in-situ wall body 22 and are fixedly connected with the section steel 100 in the upper cast-in-situ wall body 22, and the transverse ribs 30 in the lower prefabricated wall body 11 extend into the lower cast-in-situ wall body 12 and are fixedly connected with the section steel 100 in the lower cast-in-situ wall body 12.
In the invention, the length direction of the hybrid shear wall structure is shown in fig. 1, and the width direction is shown in fig. 2.
In actual construction, the portions of the transverse ribs 30 extending from the upper prefabricated wall body 21 to both sides are welded with the section steel 100 in the corresponding upper cast-in-place wall body 22 through the lacing plates or the lacing bars 150, etc., and the portions of the transverse ribs 30 extending from the lower prefabricated wall body 11 to both sides are welded with the section steel 100 in the corresponding lower cast-in-place wall body 12 through the lacing plates or the lacing bars 150, etc.
Preferably, the transverse ribs 30 extending from the upper prefabricated wall 21 to both sides should extend to the main stress structure position of the section steel 100 in the cast-in-place wall 22 on both sides and be welded to the main stress structure of the section steel 100 by means of the batten plate or the batten strip 150, etc., and likewise, the transverse ribs 30 extending from the lower prefabricated wall 11 to both sides should extend to the main stress structure position of the section steel 100 in the cast-in-place wall 12 on both sides and be welded to the main stress structure of the section steel 100 by means of the batten plate or the batten strip 150, etc.
In the present invention, the sectional shape of the section steel 100 may be designed according to the actual building structure requirements, and may be various, without limitation. As shown in fig. 4, the section steel 100 is shown as a cross double i-steel.
In actual construction, the upper prefabricated wall body 21 is formed by pre-casting (pre-casting herein means that casting is performed before reaching the site, and casting is not performed any more in site operation, and the same applies below) concrete-wrapped reinforcement grid in a factory by means of a formwork, and shear keys 60 are pre-buried at the bottom of the upper prefabricated wall body 21, and the bottom of the shear keys 60 is exposed downward to the upper prefabricated wall body 21.
In actual construction, the lower prefabricated wall 11 is formed by casting concrete in advance to wrap a reinforcing grid by means of a formwork, and shear key grooves 13 into which the shear keys 60 extending from the bottom of the upper prefabricated wall 21 extend are reserved at the top of the lower prefabricated wall 11.
In the present invention, after the superimposed horizontal member 70 is constructed on the lower shear wall 10, the shear key 60 realizes the shear transfer between the upper and lower prefabricated walls 21, 11.
In the invention, the steel bar mesh used for pouring the upper and lower prefabricated wall bodies 21 and 11 is composed of transverse bars 30, vertical bars 40 and tie bars 50 for pulling the transverse bars 30 and the vertical bars 40. The upper and lower cast-in- place walls 22, 12 are formed by section steel and casting with the aid of forms.
As shown in fig. 1, one or more shear keys 60 may be provided in the length direction of the hybrid shear wall structure of the present invention, the length of the shear key 60 is much smaller than the lengths of the upper and lower prefabricated wall bodies 21, 11, and preferably, the shear key 60 is located at the middle of the upper prefabricated wall body 21 or the lower prefabricated wall body 11, and the width of the shear key 60 is much smaller than the widths of the upper and lower prefabricated wall bodies 21, 11 in the width direction of the hybrid shear wall structure of the present invention.
In practical design, the superimposed horizontal member 70 includes a precast layer 71 applied to the lower shear wall 10, and a cast-in-place layer 72 applied after the upper precast wall 21 with the shear key 60 embedded therein is placed in place above the lower precast wall 11, the cast-in-place layer 72 and the precast layer 71 together constituting the superimposed horizontal member 70 interposed between the upper and lower shear walls 20, 10 and filling the gap between the upper and lower shear walls 20, 10.
Further, the prefabricated layer 71 is formed by casting a concrete-wrapped portion of the reinforcing mesh 75 (i.e., a lower portion of the reinforcing mesh 75) in advance in a factory by means of a formwork, wherein: the height of the preformed layer 71 is approximately half the height of the entire laminated horizontal member 70; the prefabricated layers 71 are not connected at the positions of the shear key grooves at the top of the lower prefabricated wall 11 (as shown in fig. 2) so that the shear keys 60 can be inserted into the shear key grooves 13, and the prefabricated layers 71 are not connected at the positions of the section steel or the horizontal connection plates (as shown in fig. 3) so that the upper and lower section steel 100 can be connected through the horizontal connection plates 120, as seen in the width direction of the hybrid shear wall structure of the present invention.
After the shear keys 60 exposed from the upper prefabricated wall body 21 are placed in place in the shear key grooves 13 on the lower prefabricated wall body 11, the cast-in-situ layer 72 is formed by continuing to cast concrete to wrap the reinforcing steel bar grids 75 by means of templates, the reinforcing steel bar grids 75 are formed by transverse ribs, vertical ribs and tie bars, the cast-in-situ layer 72 and the prefabricated layer 71 together form the superposed horizontal member 70 between the upper and lower shear walls 20, 10, and the cast-in-situ layer 72 further fills the shear key grooves 13 and the gaps between the upper and lower shear walls 20, 10.
In the present invention, the transverse bars 30 are transverse bars, the vertical bars 40 are vertical bars, and the tie bars 50 are bars such as U-bars or the like for pulling the transverse bars 30 and the vertical bars 40 together to form a grid of bars.
In actual construction, the laminated horizontal member 70 may be a laminated slab or a laminated beam.
If the superimposed horizontal members 70 are superimposed sheets, the superimposed sheets are generally long along the length of the hybrid shear wall structure of the present invention, and therefore the top surfaces of the lower shear wall 10 are flush, or substantially flush, except for the groove structures formed by the shear key grooves 13. If the laminated horizontal member 70 is a laminated beam, the length direction of the laminated beams Liang Yanben is spaced apart from the length direction of the hybrid shear wall structure of the present invention, so that the top surface of the lower shear wall 10 is in a rectangular tooth shape along the length direction of the hybrid shear wall structure of the present invention except for the groove structure formed by the shear key grooves 13, according to the longitudinal section of the laminated beam and the number of the laminated beams, a laminated beam is arranged in the groove between two adjacent rectangular teeth, and the laminated beam and the rectangular teeth together fill the gap between the upper and lower shear walls 20 and 10.
Further, if the laminated horizontal member 70 is a laminated plate, the shear key 60 penetrates the laminated horizontal member 70 and is integrally connected to the laminated horizontal member 70 after the laminated horizontal member 70 is constructed. If the laminated horizontal member 70 is a laminated beam, the shear key 60 does not necessarily penetrate through the laminated horizontal member 70 after the laminated horizontal member 70 is constructed, and the shear key 60 may penetrate through and be connected with the laminated horizontal member 70 into a whole (this is not recommended because of increasing the difficulty of construction), or may penetrate through and be connected with the lower shear wall 10 into a whole.
In practical implementation, the structure and construction process of the laminated slab and the laminated beam are well known in the art, and fig. 1 to 3 show the structure of the laminated slab, and the structure of the laminated beam is understood with reference to fig. 1 to 3.
In the present invention, a joint grouting layer 80 is constructed between the upper prefabricated wall body 21 and the building structure below, wherein: when the laminated horizontal member 70 is a laminated slab, the building structure refers to the laminated slab, that is, a joint grouting layer 80 is constructed between the bottom surface of the upper prefabricated wall body 21 and the top surface of the laminated slab below the upper prefabricated wall body; when the laminated horizontal member 70 is a laminated beam, the building structure refers to a laminated beam and a lower prefabricated wall, that is, a joint grouting layer 80 is constructed between the bottom surface of the upper prefabricated wall 21 and the top surfaces of the lower Fang Diege beam and the lower prefabricated wall.
In the present invention, the casting process of the upper and lower prefabricated wall bodies 21, 11, the superimposed horizontal member 70, and the upper and lower cast-in- place wall bodies 22, 12 is well known in the art.
In the present invention, the form may be designed in a reasonable shape, size, use mode, etc. according to the casting requirement, and the form is a casting tool well known in the art, so it is not described herein.
In the present invention, as shown in fig. 1, there is shown a boundary line 90 between an edge region 92 and a non-edge region 91, that is, a boundary line 90 between an edge region 92 and a non-edge region 91 is formed between an upper prefabricated wall 21 and each upper cast-in-place wall 22, and between a lower prefabricated wall 11 and each lower cast-in-place wall 12, the regions where the upper and lower prefabricated walls 21, 11 are located are regarded as non-edge regions 91, and the regions where the upper and lower cast-in- place walls 22, 12 are located are regarded as edge regions 92. Further, the lateral rib portions, the vertical ribs 40, the tie bars 50 located in the non-edge region 91 are regarded as non-edge members, and the section steel 100, the horizontal connecting plates 120, and the lateral rib portions extending from the non-edge region 91 located in the edge region 92 are regarded as edge members.
As can be seen from the above description, in the non-edge region 91, the non-edge member ribs 40 are discontinuous in the vertical direction at the horizontal position of the superimposed horizontal member while the concrete is kept continuous, i.e., the concrete of the upper non-edge region 91, the concrete of the superimposed horizontal member 70 and the concrete of the lower non-edge region 91 are continuous up and down and the continuous reliability of the above three-part concrete is further achieved by the shear keys 60, and the shear keys 60 ensure the shear bearing capacity of the horizontal joint between the three-part concrete. In the edge region 92, in the up-down direction, the edge member section steel 100 is continuous at the horizontal position where the laminated horizontal member is located and the concrete is kept continuous, with good horizontal shear bearing capacity.
In actual implementation, as shown in fig. 5 and 6, the connection between one hybrid shear wall structure of the present invention and another hybrid shear wall structure of the present invention adjacent thereto may be achieved by: the two adjacent profile steels 100 are mutually connected by means of lacing plates or lacing bars 150 and the like, and the concrete of the adjacent upper cast-in-situ wall 22 is poured in a through manner, and the concrete of the adjacent lower cast-in-situ wall 12 is poured in a through manner.
Fig. 5 shows the connection between three adjacent hybrid shear wall structures of the present invention, which form a T-shaped cross section, wherein: the section steel 100 of one of the hybrid shear wall structures of the present invention is welded to the section steel 100 of the other of the adjacent hybrid shear wall structures of the present invention by means of battens or battens 150, and the concrete of the upper cast-in-place wall 22 of the adjacent three hybrid shear wall structures of the present invention is through-cast, and likewise, the concrete of the lower cast-in-place wall 12 of the adjacent three hybrid shear wall structures of the present invention is through-cast.
In practical implementation, all adjacent section steels 100 of the hybrid shear wall structure of the present invention are not necessarily connected in pairs, and fig. 5 shows a situation in which adjacent section steels 100 are not connected in pairs.
The construction method of the hybrid shear wall structure comprises the following steps:
1) Prefabricated upper and lower prefabricated walls 21, 11, wherein: the shear key 60 is pre-buried at the bottom of the upper prefabricated wall body 21, and the shear key groove 13 is reserved at the top of the lower prefabricated wall body 11;
2) A prefabricated structure of prefabricated laminated horizontal elements 70 comprising the steps of: prefabricating the reinforcement grid 75 to be placed between the upper and lower shear walls 20, 10, and casting concrete to wrap part of the reinforcement grid 75 by means of a formwork to form a prefabrication layer 71, that is, the prefabrication structure comprises the reinforcement grid 75 to be placed between the upper and lower shear walls 20, 10 and the prefabrication layer 71 formed by casting part of the reinforcement grid 75;
3) Constructing the section steel 100 of the lower cast-in-situ wall body 12 on two sides of the lower prefabricated wall body 11, and fixedly connecting the transverse ribs 30 extending from the inside of the lower prefabricated wall body 11 with the section steel 100 of the lower cast-in-situ wall body 12, wherein: the distance between the section steel 100 of the lower cast-in-situ wall body 12 and the lower prefabricated wall body 11 is enough to enable the superimposed sheet/beam to be placed on the section steel 100;
4) The lower cast-in-situ wall body 12 is formed by casting concrete by virtue of a template, and the lower precast wall body 11 and the lower cast-in-situ wall bodies 12 on two sides of the lower precast wall body form a lower shear wall 10;
5) The prefabricated construction of the superimposed horizontal element 70 is placed on top of a lower shear wall 10 (a lower shear wall is herein understood to be a lower cast-in-place wall 11 and lower cast-in-place walls 12 on both sides thereof, or a lower prefabricated wall 11 and section steel 100 on both sides thereof), wherein: for superimposed sheets, the preformed structure of superimposed horizontal members 70 extends laterally along the length of the hybrid shear wall structure of the present invention (preformed layer 71 is preferably, but not limited to, between section bars 100 of two lower cast-in-place walls 12); for the composite beam, the prefabricated structure of the composite horizontal member 70 is arranged at intervals along the length direction of the hybrid shear wall structure of the invention to two sides (the prefabricated layer 71 is preferably but not limited to between the section steels 100 of the two lower cast-in-place walls 12);
6) Placing the upper prefabricated wall body 21 over the lower prefabricated wall body 11, wherein: the shear key 60 exposed from the upper prefabricated wall body 21 extends into the shear key groove 13 of the lower prefabricated wall body 11;
7) Constructing profile steel 100 of the upper cast-in-situ wall 22 on two sides of the upper prefabricated wall 21;
8) The section steel 100 of the upper cast-in-situ wall 22 and the section steel 100 of the lower cast-in-situ wall 12 are fixedly connected through a horizontal connecting plate 120, and the transverse ribs 30 extending out of the upper prefabricated wall 21 are fixedly connected with the section steel 100 of the upper cast-in-situ wall 22;
9) For the superimposed horizontal members 70, casting concrete is continued with the form to wrap the steel mesh 75 to form the cast-in-place layer 72, wherein: the cast-in-situ layer 72 and the prefabricated layer 71 together form a superposed horizontal member 70 between the upper and lower shear walls 20, 10 to be constructed, and the cast-in-situ layer 72 fills up the shear key grooves 13 and the gaps between the upper and lower shear walls 20, 10 to be constructed;
10 The upper cast-in-situ wall 22 is formed by casting concrete by means of a template, and the upper precast wall 21 and the upper cast-in-situ walls 22 on the two sides of the upper precast wall 21 form an upper shear wall 20;
11 The construction of the hybrid shear wall structure is completed, wherein: the upper and lower prefabricated wall bodies 21, 11 are interconnected by shear keys 60 without interconnecting the vertical ribs 40 in the upper and lower prefabricated wall bodies 21, 11 and the section steel 100 in the upper and lower opposing upper and lower cast-in- place wall bodies 22, 12.
In practical implementation, the steps between the step 9) and the step 10) may further include: a joint grouting layer 80 is constructed between the upper prefabricated wall body 21 and the building structure therebelow.
In the present invention, the prefabricated structures of the upper and lower prefabricated wall bodies 21, 11 and the superimposed horizontal member 70 are prefabricated in a factory before arriving at the site, so that the site casting is not required to be reproduced at the time of construction, and they are prefabricated members. In addition, the upper and lower prefabricated walls 21, 11 may be provided with a protective layer outside the concrete in addition to the concrete-poured wrap reinforcement grid.
In the present invention, how the upper and lower cast-in- place walls 22, 12 are formed by casting with a form, how the upper and lower prefabricated walls 21, 11 are formed by casting with a form, and how the prefabricated layers 71, 72 of the superimposed horizontal member 70 are formed by casting with a form are all well known in the art and therefore not described in detail herein.
In addition, in practical construction, the separate hybrid shear wall structures of the present invention may not perform the casting operations of the upper and lower cast-in- place walls 22, 12, but instead, the section steel 100 in two or more adjacent hybrid shear wall structures of the present invention may be welded to each other by the batten plate or the batten strip 150, and then the casting operations of the upper and lower cast-in- place walls 22, 12 of the respective hybrid shear wall structures of the present invention may be performed, as will be understood with reference to fig. 5.
The invention has the advantages that:
the invention has reasonable structural design and good stress performance, greatly simplifies the construction process, improves the assembly efficiency, reduces the construction cost and fully plays the advantage of high construction speed of the assembled building.
The foregoing is a description of the preferred embodiments of the present invention and the technical principles applied thereto, and it will be apparent to those skilled in the art that any modifications, equivalent changes, simple substitutions and the like based on the technical scheme of the present invention can be made without departing from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a prefabricated assembled hybrid shear wall structure which characterized in that: the construction method comprises an upper shear wall and a lower shear wall, wherein a superposed horizontal member is constructed between the upper shear wall and the lower shear wall; the upper shear wall comprises an upper prefabricated wall body and upper cast-in-situ wall bodies positioned on two sides of the upper prefabricated wall body; the lower shear wall comprises a lower prefabricated wall body and lower cast-in-situ wall bodies positioned on two sides of the lower prefabricated wall body; shear keys are connected between the upper prefabricated wall body and the lower prefabricated wall body, and vertical ribs in the upper prefabricated wall body and the lower prefabricated wall body are not connected with each other; the profile steel in the upper cast-in-situ wall body and the lower cast-in-situ wall body which are opposite from each other up and down is connected with each other through a horizontal connecting plate; the transverse ribs in the upper prefabricated wall body extend into the upper cast-in-situ wall body and are fixedly connected with the section steel in the upper cast-in-situ wall body, and the transverse ribs in the lower prefabricated wall body extend into the lower cast-in-situ wall body and are fixedly connected with the section steel in the lower cast-in-situ wall body; the laminated horizontal component comprises a prefabricated layer which is constructed on the lower shear wall, and a cast-in-situ layer which is constructed after the upper prefabricated wall with the pre-buried shear keys is arranged above the lower prefabricated wall, wherein the cast-in-situ layer and the prefabricated layer form a laminated horizontal component between the upper shear wall and the lower shear wall together and fill a gap between the upper shear wall and the lower shear wall, and the laminated horizontal component is a laminated slab or a laminated beam;
the prefabricated assembled hybrid shear wall structure is constructed according to the following steps:
1) Prefabricating an upper prefabrication wall body and a lower prefabrication wall body, wherein: the bottom of the upper prefabricated wall body is pre-buried with shear keys, and the top of the lower prefabricated wall body is reserved with shear key grooves;
2) A prefabricated structure of prefabricated laminated horizontal members comprising the steps of: prefabricating a reinforcing grid to be placed between the upper shear wall and the lower shear wall, and pouring concrete to wrap part of the reinforcing grid by means of a template to form a prefabrication layer;
3) Constructing section steel of the lower cast-in-situ wall body on two sides of the lower prefabricated wall body, and fixedly connecting transverse ribs extending out of the lower prefabricated wall body with the section steel of the lower cast-in-situ wall body;
4) The lower cast-in-situ wall body is formed by pouring concrete through a template, and a lower shear wall is formed by the lower prefabricated wall body and the lower cast-in-situ wall bodies on two sides of the lower prefabricated wall body;
5) Placing the prefabricated structure of the superposed horizontal member on the lower shear wall;
6) Placing the upper prefabricated wall above the lower prefabricated wall, wherein: the shear key exposed from the upper prefabricated wall body extends into the shear key groove of the lower prefabricated wall body;
7) Constructing profile steel of the cast-in-situ wall body on two sides of the upper prefabricated wall body;
8) The section steel of the upper cast-in-situ wall body and the section steel of the lower cast-in-situ wall body are fixedly connected through a horizontal connecting plate, and the transverse ribs extending out of the upper prefabricated wall body are fixedly connected with the section steel of the upper cast-in-situ wall body;
9) For the superimposed horizontal member, continuing pouring concrete to wrap the steel bar grid by means of the template to form a cast-in-situ layer, wherein: the cast-in-situ layer and the prefabricated layer form a superposed horizontal component and are arranged between the upper shear wall and the lower shear wall to be constructed, and the cast-in-situ layer is filled with the shear key grooves and gaps between the upper shear wall and the lower shear wall to be constructed;
10 The upper cast-in-situ wall body is formed by casting concrete by virtue of a template, and an upper shear wall is formed by the upper prefabricated wall body and the upper cast-in-situ wall bodies on the two sides of the upper prefabricated wall body;
11 The construction is completed.
2. The prefabricated hybrid shear wall structure of claim 1, wherein:
the transverse ribs extending from the upper prefabricated wall body to two sides are welded with the corresponding section steel in the upper cast-in-situ wall body through lacing plates or lacing bars, and the transverse ribs extending from the lower prefabricated wall body to two sides are welded with the corresponding section steel in the lower cast-in-situ wall body through lacing plates or lacing bars.
3. The prefabricated hybrid shear wall structure of claim 1, wherein:
the upper prefabricated wall body is formed by pouring concrete in advance to wrap a reinforcing steel bar grid, the shear key is pre-embedded at the bottom of the upper prefabricated wall body, and the shear key is exposed downwards;
the lower prefabricated wall body is formed by pouring concrete in advance to wrap a reinforcing steel bar grid, and a shear key groove into which the shear key extending out of the bottom of the upper prefabricated wall body extends is reserved at the top of the lower prefabricated wall body;
after the lower shear wall is constructed with the superimposed horizontal member, the shear key realizes shear force transmission between the upper prefabricated wall and the lower prefabricated wall.
4. The prefabricated hybrid shear wall structure of claim 3, wherein:
the steel bar grid used for pouring the upper prefabricated wall body and the lower prefabricated wall body consists of transverse ribs, vertical ribs and tie bars for pulling and connecting the transverse ribs and the vertical ribs.
5. The prefabricated hybrid shear wall structure of claim 1, wherein:
the prefabricated layer is formed by pouring concrete to wrap part of the reinforcing steel bar grid in advance, wherein: the prefabricated layers are not connected at the shear key groove positions of the tops of the lower prefabricated walls, and the prefabricated layers are not connected at the section steel or the horizontal connecting plates;
after the shear keys exposed from the upper prefabricated wall body are placed in the shear key grooves on the lower prefabricated wall body, the cast-in-situ layer is formed by continuously pouring concrete to wrap reinforcing steel bar grids, and the cast-in-situ layer and the prefabricated layer form the overlapped horizontal component together and fill gaps among the shear key grooves, the upper shear wall and the lower shear wall.
6. The prefabricated hybrid shear wall structure of claim 1, wherein:
and a joint grouting layer is constructed between the upper prefabricated wall body and the building structure below the upper prefabricated wall body.
7. The prefabricated hybrid shear wall structure of any of claims 1-6, wherein:
the prefabricated mixed shear wall structures are connected with the other adjacent prefabricated mixed shear wall structures through interconnection among the adjacent section steel, concrete through casting of the adjacent upper cast-in-situ wall body and concrete through casting of the adjacent lower cast-in-situ wall body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396448.8A CN108343176B (en) | 2018-04-27 | 2018-04-27 | Prefabricated assembled hybrid shear wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396448.8A CN108343176B (en) | 2018-04-27 | 2018-04-27 | Prefabricated assembled hybrid shear wall structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108343176A CN108343176A (en) | 2018-07-31 |
| CN108343176B true CN108343176B (en) | 2023-07-04 |
Family
ID=62955318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810396448.8A Active CN108343176B (en) | 2018-04-27 | 2018-04-27 | Prefabricated assembled hybrid shear wall structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343176B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339245B (en) * | 2018-11-21 | 2024-06-07 | 福建工程学院 | Prefabricated shear wall and superimposed sheet connection structure and construction method |
| CN109610654B (en) * | 2018-12-07 | 2020-05-19 | 青岛理工大学 | Prefabricated assembly type double-steel-plate concrete shear wall connecting assembly and using method thereof |
| CN110424579B (en) * | 2019-07-30 | 2021-05-11 | 中国建筑第八工程局有限公司 | Frame deformation mode resists assembled concrete shear force wall of macroseism |
| CN113006321B (en) * | 2021-03-12 | 2021-09-28 | 昆山市建设工程质量检测中心 | Construction method for connecting joints between combined precast concrete wall bodies |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008025108A (en) * | 2006-07-18 | 2008-02-07 | Toyo Tire & Rubber Co Ltd | Insulation panel connection structure |
| CN102168455B (en) * | 2011-03-15 | 2012-09-19 | 东南大学 | U-shaped closed tendon connection structure of horizontal joints in assembled shear wall structures |
| KR102043979B1 (en) * | 2011-03-16 | 2019-11-12 | 프라마톰 게엠베하 | Wall module for building a structure and associated structure |
| JP5647747B1 (en) * | 2014-05-28 | 2015-01-07 | 蹴揚建設株式会社 | Wall panel joining method |
| CN104847039A (en) * | 2015-05-27 | 2015-08-19 | 天津大学建筑设计研究院 | Reinforcing fabricated shear wall structure with shear keys |
| CN208219916U (en) * | 2018-04-27 | 2018-12-11 | 中铁建工集团有限公司 | A kind of prefabricated assembled mixing shear wall structure |
-
2018
- 2018-04-27 CN CN201810396448.8A patent/CN108343176B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108343176A (en) | 2018-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108374504B (en) | Prefabricated reinforced concrete shear wall structure and construction method thereof | |
| CN102808465B (en) | Assembly connecting structure and assembly connecting method of assembled concrete frame and shear wall combination | |
| CN108343176B (en) | Prefabricated assembled hybrid shear wall structure | |
| CN111424850B (en) | Prefabricated reinforced concrete shear wall and construction method | |
| CN202831296U (en) | Assembled spliced connecting structure of concrete frame-shear wall and structure constructed | |
| CN110344530B (en) | Local laminated slab connecting joint and construction method thereof | |
| CN107642179B (en) | Key groove connecting structure of steel plate of assembled frame shear structure and assembling method | |
| CN214301800U (en) | A slope-assembled frame beam | |
| US20090120025A1 (en) | Prefabricated concrete reinforcement system | |
| CN110512730B (en) | Assembled concrete primary and secondary roof beam connection structure | |
| CN108086488B (en) | Assembled frame shear structure wall staggered connection structure and assembling method | |
| CN106760036A (en) | A kind of prefabricated steel combined concrete shear wall | |
| CN111502080A (en) | Steel-concrete composite structure frame-cast-in-place concrete shear wall structure system | |
| CN109339087B (en) | Infrastructure system of low-rise building | |
| CN211522899U (en) | Long-span steel-concrete composite beam convenient to erect by bridge girder erection machine | |
| CN218091607U (en) | Prestressed precast beam and superposed beam formed by same | |
| CN209011399U (en) | Reinforced concrete hollow overlaps two-way ribbed slab floor | |
| CN108104310B (en) | Assembled frame shear structure column staggered connection structure and assembling method | |
| CN108643395A (en) | A kind of prefabricated prestressing Self-resetting shear wall structure and its construction method | |
| CN110735492A (en) | Connecting structure of prestressed hollow composite slabs and construction method thereof | |
| CN215716062U (en) | Connection node of assembled concrete shear wall edge member | |
| CN113026806B (en) | Prefabricated arch angle plate and assembled underground station | |
| CN216195863U (en) | Hollow close-splicing and overlapping bidirectional plate of prestressed concrete steel bar truss | |
| CN213927078U (en) | A partially prefabricated assembled steel-concrete hybrid beam with a prefabricated plate with an angle steel connector | |
| CN212078398U (en) | Building floor and combined floor system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |