CN111236527A - Fabricated concrete wallboard with steel bars avoiding and reinforcing connection - Google Patents
Fabricated concrete wallboard with steel bars avoiding and reinforcing connection Download PDFInfo
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- CN111236527A CN111236527A CN202010224048.6A CN202010224048A CN111236527A CN 111236527 A CN111236527 A CN 111236527A CN 202010224048 A CN202010224048 A CN 202010224048A CN 111236527 A CN111236527 A CN 111236527A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 126
- 239000010959 steel Substances 0.000 title claims abstract description 126
- 239000004567 concrete Substances 0.000 title claims abstract description 57
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 56
- 238000005452 bending Methods 0.000 claims abstract description 109
- 239000011178 precast concrete Substances 0.000 claims abstract description 40
- 230000002787 reinforcement Effects 0.000 claims abstract description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 64
- 238000010276 construction Methods 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
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- 238000011160 research Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- -1 electricity Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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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
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
- E04B1/043—Connections specially adapted therefor
- E04B1/046—Connections specially adapted therefor using reinforcement loops protruding from the elements
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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
- E04B1/4114—Elements with sockets
- E04B1/4142—Elements with sockets with transverse hook- or loop-receiving parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
- E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
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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
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
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Abstract
The invention discloses an assembled concrete wallboard with steel bars avoiding and reinforcing connection.A plurality of horizontally-distributed horizontally-connected hoop reinforcements which are uniformly distributed in the vertical direction and horizontally arranged and a plurality of horizontally-distributed horizontally-reinforced bent avoiding steel bars which are uniformly distributed in the horizontal direction are arranged in a precast concrete plate body; arranging a vertical connecting steel bar at one inner angle of a vertical rectangular formed by the vertical reinforced bending avoidance steel bar and the horizontal connecting ring stirrup; the position of the oblique bending section steel bar of the vertical reinforced bending avoidance steel bar is positioned on an oblique line. The invention can reasonably avoid a large amount of node steel bars in the construction process, and reasonably arranges the shear grooves in all directions on the premise of ensuring the reasonable avoidance, so that the bearing capacity of the node is obviously improved, and particularly the shearing resistance of the node is obviously improved. The joint construction is convenient, the construction speed is high, and the economic effect is good.
Description
Technical Field
The invention relates to an assembled concrete structure adopted by an energy-saving building, in particular to an assembled concrete wallboard with avoiding and reinforced connection of reinforcing steel bars.
Background
The prefabricated concrete building is a building with a concrete structure designed and built in a field assembly mode, wherein the prefabricated concrete components are mainly produced in a factory. The assembly method of the member generally comprises the steps of on-site post-pouring laminated concrete, steel bar anchoring post-pouring concrete connection and the like, and the steel bar connection can adopt the methods of sleeve grouting connection, welding, mechanical connection, reserved hole lap joint and the like. In the 80 s of the 20 th century, the prefabricated large-plate house popular in China has many hidden dangers and defects influencing the safety and normal use of the structure due to poor structural integrity, leakage, floor slab cracks and the like, and is gradually replaced by a cast-in-place concrete structure. However, with the application of the currently emerging prefabricated concrete structure, especially with the introduction of a plurality of foreign advanced technologies in recent years, a new technology for constructing a native prefabricated concrete structure is gradually formed.
With the acceleration of the 'building industrialization and housing industrialization' process in China and the continuous reduction of 'population dividends' in China, the appearance of wasted labor in the building industry and the trend of housing industrialization are increasingly obvious. The application of prefabricated concrete structures has become a new focus of research. New technology and new forms of prefabricated concrete structures of residential buildings are continuously emerged all over the country. The assembled reinforced concrete structure is one of the important directions for the development of building structures in China, is beneficial to the development of industrialization of buildings in China, improves the production efficiency, saves energy, develops green and environment-friendly buildings, and is beneficial to improving and ensuring the quality of building engineering. Compared with a cast-in-place construction method, the assembly type RC structure is beneficial to green construction, because the assembly type construction can better meet the requirements of land saving, energy saving, material saving, water saving, environmental protection and the like of the green construction, the negative effects on the environment are reduced, including noise reduction, dust prevention, environmental pollution reduction, clean transportation, field interference reduction, water, electricity, material and other resources and energy sources, and the principle of sustainable development is followed. Moreover, the assembly type structure can continuously finish a plurality of or all working procedures of the engineering in sequence, thereby reducing the types and the quantity of the engineering machinery entering the field, eliminating idle time of procedure connection, realizing the three-dimensional crossing operation, reducing constructors, improving the working efficiency, reducing the material consumption, reducing the environmental pollution and providing the guarantee for green construction. In addition, the fabricated structure reduces construction waste (about 30% -40% of the total amount of urban waste) to a great extent, such as waste steel bars, waste iron wires, waste bamboo and wood, waste concrete and the like.
The north american region is dominated by the united states and canada because the precast concrete association (PCI) has long studied and popularized precast construction and the relevant standard specifications for precast concrete are well established. The prefabricated building in North America mainly comprises two series of prefabricated building outer walls and structural prefabricated components, and the common characteristics of the prefabricated components are that the large-scale construction and the prestress are combined, so that the structural reinforcement and the connection structure can be optimized. The manufacturing and installation workload is reduced, the construction period is shortened, and the characteristics of industrialization, standardization and technical economy are fully reflected. In the 20 th century, prefabricated buildings in north america were used primarily in low-rise, non-earthquake-resistant fortification areas. Due to the influence of earthquakes in the California region, engineering application technical research of earthquake-resistant and middle-high-rise prefabricated structures is very important in recent years. PCI has recently published a book of prefabricated concrete structure earthquake-resistant design, systematically analyzes earthquake-resistant design problems of prefabricated buildings from the theoretical and practical perspectives, summarizes latest scientific research achievements of a plurality of prefabricated structure earthquake-resistant designs, and has strong guiding significance for guiding prefabricated structure design and engineering application and popularization.
Europe is the origin of prefabricated buildings and has begun its way to industrialize buildings as early as the 17 th century. After the second world war, europe has further explored the exploration of building industrialization patterns due to shortage of labor resources. The design and construction mode of prefabricated concrete buildings is actively promoted in northern Europe, Western Europe and eastern Europe with underdeveloped economy. The design and construction experience of a plurality of prefabricated buildings is accumulated, various special prefabricated building systems and standardized universal prefabricated product series are formed, a series of prefabricated concrete engineering standards and application manuals are compiled, and the prefabricated concrete system plays a very important role in promoting the application of the prefabricated concrete in the whole world.
Japan and korea have used for our successful experience in research on standardized design construction of prefabricated buildings. Combining the requirements of the users. The method makes breakthrough progress in the aspects of integral seismic resistance and seismic isolation design of a prefabricated structural system. Representative achievement is two 58-layer tokyo towers constructed by prefabricated assembled frame knots in 2008 of japan. Meanwhile, the standard specifications of design, manufacture and construction of a Japanese precast concrete building system are also perfect, and the current precast specifications include precast concrete engineering (JASSl0) and concrete curtain wall (JASSl 4).
The design and construction technology of the fabricated concrete building is researched from the fifties and sixties of the 20 th century in China, a series of fabricated concrete building systems are formed, and typical building systems comprise a fabricated single-layer industrial factory building system, a fabricated multi-layer frame building system, a fabricated large-plate building system and the like. The application of the fabricated concrete building reaches the full prosperous period in the 80 th of the 20 th century, and a fabricated concrete industrialized building mode integrating design, manufacture, construction and installation is formed in many places in the country, the fabricated concrete building and the masonry building adopting the prefabricated hollow floor slab become two main building systems, and the application popularization rate reaches more than 70%. Because the function and physical performance of the fabricated building have many limitations and defects, the level of the design and the development of the construction technology of the fabricated concrete building in China cannot keep up with the change of social requirements and the development of the construction technology, and the fabricated concrete building is gradually replaced by a full cast-in-place concrete building system in the middle of the 90 s of the 20 th century, so that the fabricated concrete building is widely applied to the fabricated single-layer industrial factory building system at present. Other prefabricated building systems have very few engineering applications. The seismic integrity of the prefabricated structure and the specialized research of design, construction and management are not enough, so that the technical economy is poor. Is the root cause of the long-term stagnation of the prefabricated structure.
The connection node of the fabricated concrete requires higher strength and rigidity, and a large amount of steel bars need to be configured. However, unlike a cast-in-place concrete structure, the hoisting of large and heavy components and parts is difficult, so that the connection and avoidance of various reinforcing steel bars are very critical, otherwise, the field construction is difficult, the working hours are increased, and the construction quality is seriously affected. In addition, the shearing resistance of the connecting node is often seriously insufficient due to the integrity problem of new and old concrete. And because the existence of a large amount of reinforcing bars, it is difficult to set up reasonable shear force groove, and some not only seriously influence production, and the effect is also unsatisfactory.
Disclosure of Invention
The invention aims to provide an assembly type concrete wallboard with steel bars avoiding and reinforcing connection, which can ensure the sufficient shearing resistance of a node on the premise of considering reasonable avoidance of the steel bars.
In order to solve the problems in the prior art, the invention adopts the technical scheme that:
a fabricated concrete wallboard with steel bars avoiding and reinforced connection mainly comprises a precast concrete plate body, a top reinforced shear groove, vertical connecting steel bars, vertical reinforced bent avoiding steel bars, horizontal connecting ring stirrups, side end reinforced shear grooves and steel bar connecting sleeves, wherein a plurality of vertical and uniformly distributed horizontal connecting ring stirrups which are horizontally arranged are arranged in the precast concrete plate body;
a plurality of horizontally uniformly distributed vertical reinforcing, bending and avoiding reinforcing steel bars are arranged in the precast concrete plate body; the two ends of the vertical reinforced bending avoidance reinforcing steel bars respectively extend out of the upper end and the lower end of the precast concrete plate body, and the reinforcing steel bar tail end hooks of the left vertical reinforced bending avoidance reinforcing steel bar and the right vertical reinforced bending avoidance reinforcing steel bar respectively appear at two corners of the top of the vertical reinforced bending avoidance reinforcing steel bar in an alternating manner; the vertical reinforced bending avoidance reinforcing steel bars lean against the insides of the hoops of the horizontal connecting rings respectively; binding the vertical reinforced bending avoidance steel bars with the horizontal connecting ring stirrups to form a space net rack; arranging vertical connecting steel bars at an inner angle of a non-end vertical rectangular formed by the vertical reinforced bent avoiding steel bars and the horizontal connecting ring stirrups, wherein the vertical connecting steel bars are uniformly distributed on the left and right in sequence in the inner direction of a wall plane, and the vertical connecting steel bars are alternately arranged inside and outside the inner angle of the rectangle in the outer direction of the wall plane; the bottoms of the vertical connecting steel bars extend to the bottoms of the precast concrete plate bodies, the bottoms of the vertical connecting steel bars are respectively connected with the steel bar connecting sleeves, and the upper parts of the vertical connecting steel bars vertically extend out of the precast concrete plate bodies; top reinforcing shear grooves are respectively arranged on the top surfaces of the precast concrete plate bodies, which correspond to the non-end vertical rectangles formed by the vertical reinforcing bending avoidance steel bars and the horizontal connecting ring stirrups; two side end faces of the precast concrete plate body corresponding to each layer of horizontal connecting ring stirrups are respectively provided with a side end reinforcing shear groove.
Furthermore, the vertical reinforced bending avoidance steel bar mainly comprises a steel bar hoop, a vertical steel bar, an oblique bending section steel bar, a first bending point, a second bending point and a steel bar tail end hook, the vertical reinforced bending avoidance steel bar is bent in the middle to form the oblique bending section steel bar, the oblique bending section steel bar spans over the vertical connecting steel bar, and after the oblique bending section steel bar spans over the vertical connecting steel bar, the vertical connecting steel bar is positioned at the inner angle of the adjacent rectangle; the oblique bending section steel bars of the vertical reinforced bending avoidance steel bars at one side end are positioned at the upper part, the oblique bending section steel bars of the vertical reinforced bending avoidance steel bars at the other side end are positioned at the lower part, the positions of the oblique bending section steel bars of the vertical reinforced bending avoidance steel bars between the left end and the right end are sequentially lifted one by one, and the positions of the oblique bending section steel bars are positioned on an oblique line; the whole steel bar hoop is rectangular, a hook at the tail end of each steel bar is positioned on one corner of the top, the same positions of two vertical steel bars are respectively provided with a first bending point and a second bending point, the first bending point is positioned on the upper part, the vertical steel bar on the upper part is vertical, the second bending point is positioned on the lower part, and the vertical steel bar on the lower part is vertical; an oblique bending section steel bar is arranged between the first bending point and the second bending point, and the bending angle of the oblique bending section steel bar is 30-45 degrees; the vertical interval between the vertical steel bar on the upper part of the first bending point and the vertical steel bar on the lower part of the second bending point is 60-100 mm.
Furthermore, the distance between the vertical reinforcing bent avoiding reinforcing steel bar at the left end and the right end and the adjacent vertical reinforcing bent avoiding reinforcing steel bar is half to two thirds of the distance between other vertical reinforcing bent avoiding reinforcing steel bars in the middle.
Further, the vertical reinforcing, bending and avoiding reinforcing steel bar has the two ends respectively extending out of the upper end and the lower end of the precast concrete plate body, the lower end extending length is equal, the length is 20-50 mm, the upper end extending length is equal, and the length is 50-100 mm.
Furthermore, the top reinforcing shear groove is vertically formed downwards, the horizontal projection is rectangular, the top reinforcing shear groove is a tetrahedral groove, the bottom of the groove is smaller than the opening of the groove, and the four surfaces have the same gradient.
Furthermore, the side end reinforcing shear force groove is horizontally formed in the precast concrete plate body, the vertical projection is rectangular, the side end reinforcing shear force groove is a tetrahedral groove, the bottom of the groove is smaller than the opening of the groove, and the gradient of the left surface and the gradient of the right surface are larger than the gradient of the upper surface and the lower surface.
Further, the precast concrete plate body is a rectangular concrete plate.
Furthermore, the length that stretches out at the both ends of horizontal connecting ring stirrup is equal, and is 100~400 mm. The invention has the advantages that:
the invention relates to an assembled concrete wallboard with steel bars avoiding and reinforcing connection.A precast concrete plate body is a rectangular concrete plate, and a plurality of horizontally-uniformly-distributed horizontally-arranged horizontal connecting ring stirrups and a plurality of horizontally-uniformly-distributed horizontally-arranged vertically-reinforcing bent avoiding steel bars are arranged in the precast concrete plate body; arranging a vertical connecting steel bar at one inner angle of a vertical rectangular formed by the vertical reinforced bending avoidance steel bar and the horizontal connecting ring stirrup; the position of the oblique bending section steel bar of the vertical reinforced bending avoidance steel bar is positioned on an oblique line. The invention can reasonably avoid a large amount of node steel bars in the construction process, and reasonably arranges the shear grooves in all directions on the premise of ensuring the reasonable avoidance, so that the bearing capacity of the node is obviously improved, and particularly the shearing resistance of the node is obviously improved. The construction of the joint is convenient, the construction speed is high, the economic effect is good, and the like, the member is convenient to produce, and various reinforcing steel bars are avoided and arranged in the shear groove, so that the factory production is not influenced; and the construction is simplified, the connection is reliable, the integrity is good, and the rigidity is obviously improved. In addition, the invention improves the industrialization efficiency, reduces the resource and energy consumption, and can realize generalization and standardization.
Drawings
FIG. 1 is a schematic top view of an assembled concrete wall panel with reinforcement bars attached to the wall panel;
FIG. 2 is a schematic side view of a fabricated concrete wall panel with reinforcement bars being routed and reinforced;
FIG. 3 is a schematic front view of a fabricated concrete panel with reinforcement bars attached to the panel;
FIG. 4 is a schematic front view of a vertical reinforced bending avoidance reinforcement;
fig. 5 is a schematic side view of a vertical reinforced bending avoidance reinforcement.
In the figure, 1 is a precast concrete slab; 2 is a top reinforcing shear groove; 3 is a vertical connecting steel bar; 4, vertical reinforced bending avoidance reinforcing steel bars; 5 is a horizontal connecting ring stirrup; 6 is a side end reinforcing shear groove; 7 is a steel bar connecting sleeve; 4-1 is a steel bar hoop; 4-2 is a vertical steel bar; 4-3 are oblique bending section steel bars; 4-4 is a first bending point; 4-5 is a second bending point; 4-6 are hooks at the tail ends of the reinforcing steel bars.
Detailed Description
In order to further illustrate the present invention, the following detailed description of the present invention is given with reference to the accompanying drawings and examples, which should not be construed as limiting the scope of the present invention.
As shown in fig. 1-3, the fabricated concrete wall panel with avoiding and reinforcing connection of steel bars mainly comprises a precast concrete panel body 1, a top reinforcing shear groove 2, vertical connecting steel bars 3, vertical reinforcing bent avoiding steel bars 4, horizontal connecting ring stirrups 5, side reinforcing shear grooves 6 and steel bar connecting sleeves 7, wherein the precast concrete panel body 1 is a rectangular concrete slab, a plurality of horizontal connecting ring stirrups 5 which are vertically and uniformly distributed and horizontally arranged are arranged in the precast concrete panel body 1, two ends of each horizontal connecting ring stirrup 5 respectively extend out of two side ends of the precast concrete panel body 1, the extending lengths of the two ends are equal and are 100-400 mm, and bent hooks at the tail ends of the steel bars of the upper and lower layers of horizontal connecting ring stirrups 5 respectively and alternately appear at four corners of the horizontal connecting ring stirrups 5.
A plurality of horizontally uniformly distributed vertical reinforcing, bending and avoiding reinforcing steel bars 4 which are horizontally arranged are arranged in the precast concrete plate body 1; two ends of the vertical reinforced bending avoidance reinforcing steel bars 4 respectively extend out of the upper end and the lower end of the precast concrete plate body 1, and hooks at the tail ends of the reinforcing steel bars of the left vertical reinforced bending avoidance reinforcing steel bars 4 and the right vertical reinforced bending avoidance reinforcing steel bars 4 respectively appear at two corners of the top of the vertical reinforced bending avoidance reinforcing steel bars 4 in an alternating manner; the vertical reinforced bending avoidance steel bars 4 lean against the insides of the horizontal connecting ring stirrups 5 respectively; and forming a space net rack after the vertical reinforced bent avoiding steel bars 4 are bound with the horizontal connecting ring stirrups 5.
The vertical reinforced bent avoiding steel bars 4 and the horizontal connecting ring stirrups 5 form a vertical rectangular array, vertical connecting steel bars 3 are arranged at an inner angle of the vertical rectangular array at the non-left end and the non-right end, the vertical connecting steel bars 3 are uniformly distributed on the left and right sides in sequence in the direction in the wall plane, and the vertical connecting steel bars 3 are alternately arranged inside and outside the inner angle of the rectangular array in the direction outside the wall plane; the bottoms of the vertical connecting steel bars 3 extend to the bottoms of the precast concrete plate bodies 1, the bottoms of the vertical connecting steel bars are respectively connected with the steel bar connecting sleeves 7, and the upper parts of the vertical connecting steel bars vertically extend out of the precast concrete plate bodies 1; the top surfaces of the precast concrete plate bodies 1 corresponding to the vertical rectangles at the left end and the right end of the vertical reinforced bent avoidance reinforcing steel bars 4 and the horizontal connecting ring stirrups 5 are respectively provided with top reinforcing shear grooves 2. Two side end surfaces of the precast concrete plate body 1 corresponding to each layer of the horizontal connecting ring stirrups 5 are respectively provided with a side end reinforcing shear groove 6.
As shown in fig. 4 and 5, the vertical reinforced bent avoidance reinforcing steel bar 4 mainly comprises a reinforcing steel bar hoop 4-1, a vertical reinforcing steel bar 4-2, an oblique bending section reinforcing steel bar 4-3, a first bending point 4-4, a second bending point 4-5 and a reinforcing steel bar end hook 4-6, the vertical reinforced bent avoidance reinforcing steel bar 4 is bent in the middle to form the oblique bending section reinforcing steel bar 4-3, the oblique bending section reinforcing steel bar 4-3 spans over the vertical connecting reinforcing steel bar 3, and after the oblique bending section reinforcing steel bar 4-3 spans over the vertical connecting reinforcing steel bar 3, the vertical connecting reinforcing steel bar 3 is positioned at the inner angle of the; the oblique bending section reinforcing steel bars 4-3 of the vertical reinforced bending avoidance reinforcing steel bars 4 at one side end are positioned at the upper part, the oblique bending section reinforcing steel bars 4-3 of the vertical reinforced bending avoidance reinforcing steel bars 4 at the other side end are positioned at the lower part, the positions of the oblique bending section reinforcing steel bars 4-3 of the vertical reinforced bending avoidance reinforcing steel bars 4 between the left end and the right end are sequentially lifted one by one, and the positions of the oblique bending section reinforcing steel bars 4-3 are positioned on an oblique line; the whole steel bar hoop 4-1 is rectangular, a hook 4-6 at the tail end of each steel bar is positioned at one corner of the top, the same positions of two vertical steel bars 4-2 are respectively provided with a first bending point 4-4 and a second bending point 4-5, the first bending point 4-4 is positioned at the upper part, the vertical steel bar 4-2 at the upper part is vertical, the second bending point 4-5 is positioned at the lower part, and the vertical steel bar 4-2 at the lower part is vertical; oblique bending section steel bars 4-3 are arranged between the first bending points 4-4 and the second bending points 4-5, and the bending angle of the oblique bending section steel bars 4-3 is 30-45 degrees; the vertical distance between the vertical steel bar 4-2 at the upper part of the first bending point 4-4 and the vertical steel bar 4-2 at the lower part of the second bending point 4-5 is 60-100 mm.
The vertical reinforcing bent avoidance reinforcing steel bars 4 at the left end and the right end and the adjacent vertical reinforcing bent avoidance reinforcing steel bars 4 are half to two thirds of the distance between other vertical reinforcing bent avoidance reinforcing steel bars 4 in the middle. Vertical enhancement is buckled and is dodged upper and lower both ends that the reinforcing bar 4 was equallyd divide and do not stretch out precast concrete plate body 1, and lower extreme extension length equals, and length is 20~50mm, and upper end extension length equals, and length is 50~100 mm.
The top reinforcing shear groove 2 is vertically formed downwards, the horizontal projection is rectangular, the top reinforcing shear groove 2 is a tetrahedral groove, the bottom of the groove is smaller than the opening of the groove, and the four surfaces are at the same gradient.
The side end reinforcing shear force groove 6 is horizontally arranged towards the inside of the precast concrete plate body 1, the vertical projection is rectangular, the side end reinforcing shear force groove 6 is a tetrahedral groove, the bottom of the groove is smaller than the opening of the groove, and the gradient of the left surface and the gradient of the right surface are larger than the gradient of the upper surface and the lower surface.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an assembled concrete wallboard that reinforcing bar dodges and is strengthened being connected which characterized in that: the prefabricated concrete slab comprises a prefabricated concrete slab body (1), a top reinforcing shear groove (2), vertical connecting steel bars (3), vertical reinforcing bending avoidance steel bars (4), horizontal connecting ring stirrups (5), side reinforcing shear grooves (6) and steel bar connecting sleeves (7), wherein a plurality of vertical and uniformly distributed horizontal connecting ring stirrups (5) which are horizontally arranged are arranged in the prefabricated concrete slab body (1), two ends of each horizontal connecting ring stirrup (5) respectively extend out of two side ends of the prefabricated concrete slab body (1), and steel bar tail end hooks of the upper and lower layers of horizontal connecting ring stirrups (5) are respectively and alternately arranged at four corners of each horizontal connecting ring stirrup (5);
a plurality of horizontally uniformly distributed vertical reinforcing bent avoidance reinforcing steel bars (4) which are horizontally arranged are arranged in the precast concrete plate body (1); two ends of the vertical reinforced bending avoidance reinforcing steel bars (4) respectively extend out of the upper end and the lower end of the precast concrete plate body (1), and hooks at the tail ends of the reinforcing steel bars of the left vertical reinforced bending avoidance reinforcing steel bar (4) and the right vertical reinforced bending avoidance reinforcing steel bar (4) are respectively and alternately arranged at two corners of the top of the vertical reinforced bending avoidance reinforcing steel bar (4);
the vertical reinforced bending avoidance reinforcing steel bars (4) lean against the insides of the horizontal connecting ring stirrups (5) respectively; the vertical reinforced bending avoidance steel bars (4) are bound with the horizontal connecting ring stirrups (5) to form a space net rack; vertical connecting steel bars (3) are arranged at one inner angle of a non-end vertical rectangular formed by the vertical reinforced bent avoiding steel bars (4) and the horizontal connecting ring stirrups (5), the vertical connecting steel bars (3) are sequentially and uniformly distributed on the left and right in the direction of the plane of the wall, and the vertical connecting steel bars (3) are alternately arranged inside and outside the inner angle of the rectangle in the direction outside the plane of the wall; the bottoms of the vertical connecting steel bars (3) extend to the bottoms of the precast concrete plate bodies (1), the bottoms of the vertical connecting steel bars are respectively connected with the steel bar connecting sleeves (7), and the upper parts of the vertical connecting steel bars vertically extend out of the precast concrete plate bodies (1);
top reinforcing shear grooves (2) are respectively arranged on the top surfaces of the precast concrete plate bodies (1) which are formed by the vertical reinforcing, bending and avoiding reinforcing steel bars (4) and the horizontal connecting ring stirrups (5) and correspond to the non-end vertical rectangles;
two side end surfaces of the precast concrete plate body (1) corresponding to each layer of horizontal connecting ring stirrups (5) are respectively provided with a side end reinforcing shear groove (6).
2. The assembled concrete wallboard for avoiding and reinforcing steel bars according to claim 1, wherein the vertical reinforcing bent avoiding steel bar (4) mainly comprises a steel bar hoop (4-1), a vertical steel bar (4-2), an oblique bending section steel bar (4-3), a first bending point (4-4), a second bending point (4-5) and a steel bar end hook (4-6), the vertical reinforcing bent avoiding steel bar (4) is bent in the middle to form the oblique bending section steel bar (4-3), the oblique bending section steel bar (4-3) spans over the vertical connecting steel bar (3), and after the oblique bending section steel bar (4-3) spans over, the vertical connecting steel bar (3) is positioned at the inner angle of the adjacent rectangle; oblique bending section reinforcing steel bars (4-3) of the vertical reinforcing bending avoidance reinforcing steel bars (4) at one side end are positioned at the upper part, oblique bending section reinforcing steel bars (4-3) of the vertical reinforcing bending avoidance reinforcing steel bars (4) at the other side end are positioned at the lower part, the positions of the oblique bending section reinforcing steel bars (4-3) of the vertical reinforcing bending avoidance reinforcing steel bars (4) between the left end and the right end are sequentially lifted one by one, and the positions of the oblique bending section reinforcing steel bars (4-3) are positioned on an oblique line; the whole steel bar hoop (4-1) is rectangular, a hook (4-6) at the tail end of each steel bar is positioned at one corner of the top, the same positions of two vertical steel bars (4-2) are respectively provided with a first bending point (4-4) and a second bending point (4-5), the first bending point (4-4) is positioned at the upper part, the vertical steel bar (4-2) at the upper part is vertical, the second bending point (4-5) is positioned at the lower part, and the vertical steel bar (4-2) at the lower part is vertical; an oblique bending section steel bar (4-3) is arranged between the first bending point (4-4) and the second bending point (4-5), and the bending angle of the oblique bending section steel bar (4-3) is 30-45 degrees; the vertical distance between the vertical steel bar (4-2) at the upper part of the first bending point (4-4) and the vertical steel bar (4-2) at the lower part of the second bending point (4-5) is 60-100 mm.
3. The fabricated concrete wall panel of claim 1, wherein the reinforcement comprises: the vertical reinforcing bent avoidance reinforcing steel bars (4) at the left end and the right end and the adjacent vertical reinforcing bent avoidance reinforcing steel bars (4) are half to two thirds of the interval of other vertical reinforcing bent avoidance reinforcing steel bars (4) in the middle.
4. The fabricated concrete wall panel of claim 1, wherein the reinforcement comprises: vertical enhancement is buckled and is dodged upper and lower both ends that do not stretch out precast concrete plate body (1) are equallyd divide at the both ends of reinforcing bar (4), and lower extreme extension length equals, and length is 20~50mm, and upper end extension length equals, and length is 50~100 mm.
5. The fabricated concrete wall panel of claim 1, wherein the reinforcement comprises: the top reinforcing shear groove (2) is vertically formed downwards, the horizontal projection is rectangular, the top reinforcing shear groove (2) is a tetrahedral groove, the bottom of the groove is smaller than the opening of the groove, and the four surfaces are at the same gradient.
6. The fabricated concrete wall panel of claim 1, wherein the reinforcement comprises: the side reinforcing shear force groove (6) is horizontally formed in the precast concrete plate body (1), the vertical projection is rectangular, the side reinforcing shear force groove (6) is a tetrahedral groove, the bottom of the groove is smaller than the opening of the groove, and the gradient of the left surface and the gradient of the right surface are larger than the gradient of the upper surface and the lower surface.
7. The fabricated concrete wall panel of claim 1, wherein the reinforcement comprises: the precast concrete plate body (1) is a rectangular concrete plate.
8. The fabricated concrete wall panel of claim 1, wherein the reinforcement comprises: the length that stretches out of the both ends of horizontal connecting ring stirrup (5) equals, and is 100~400 mm.
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