CN112144696A - Assembled steel structure building shear wall and installation method thereof - Google Patents
Assembled steel structure building shear wall and installation method thereof Download PDFInfo
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- CN112144696A CN112144696A CN202011018838.5A CN202011018838A CN112144696A CN 112144696 A CN112144696 A CN 112144696A CN 202011018838 A CN202011018838 A CN 202011018838A CN 112144696 A CN112144696 A CN 112144696A
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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
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/04—Walls having neither cavities between, nor in, the solid elements
- E04B2/06—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position
- E04B2/08—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
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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
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/04—Walls having neither cavities between, nor in, the solid elements
- E04B2/06—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position
- E04B2/10—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position by filling material with or without reinforcements in small channels in, or in grooves between, the elements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2002/0202—Details of connections
- E04B2002/0204—Non-undercut connections, e.g. tongue and groove connections
- E04B2002/0228—Non-undercut connections, e.g. tongue and groove connections with tongues next to each other on one end surface and grooves next to each other on opposite end surface
-
- 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
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2002/0202—Details of connections
- E04B2002/0243—Separate connectors or inserts, e.g. pegs, pins or keys
- E04B2002/0247—Strips or bars
Abstract
The invention discloses an assembly type steel structure building shear wall and an installation method thereof, and relates to the technical field of building materials, the assembly type steel structure building shear wall comprises an air-entraining block, a concrete column core and a connecting piece, wherein two notches are respectively arranged at two sides of the air-entraining block, through holes are respectively arranged at the upper surface and the lower surface of the notches at the two sides, two concrete column cores are vertically arranged in the middle of the air-entraining block, a hemispherical bulge is arranged at the top of the concrete column core, a hemispherical groove is arranged at the bottom of the concrete column core, a through hole is vertically arranged at the center of the concrete column core, a steel bar is inserted above the through hole, the lower end of the steel bar is inserted into the through hole 1/2, the middle part of the steel bar is fixedly connected with the hemispherical bulge through threads, the top of the steel bar protrudes out of the upper surface of the air-entraining block, the protruding length is 1/2 of the air-entraining block, the connecting piece, the penetrating rib movably penetrates through the penetrating hole and the connecting block.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to an assembly type steel structure building shear wall and an installation method thereof.
Background
Shear walls are also known as wind resistant walls, seismic walls or structural walls. The wall body mainly bears horizontal load and vertical load caused by wind load or earthquake action in the house or the structure, and the structure is prevented from being sheared and damaged. Also known as earthquake resistant walls, are generally made of reinforced concrete.
It is divided into a plane shear wall and a cylinder shear wall. The plane shear wall is used in reinforced concrete frame structure, plate lifting structure and flat slab system. In order to increase the rigidity, strength and collapse resistance of the structure, the reinforced concrete shear wall can be cast in situ or prefabricated in some parts. The cast-in-place shear wall, the peripheral beams and the columns are simultaneously poured, and the integrity is good. The cylinder shear wall is used in high-rise buildings, high-rise structures and suspension structures and is formed by enclosing of partition walls of elevator rooms, staircases, equipment and auxiliary rooms, the cylinder wall is a cast-in-place reinforced concrete wall body, and the rigidity and the strength of the cylinder shear wall are higher than those of a plane shear wall in bearing of larger horizontal load.
The wall can be divided into a bearing wall and a shear wall according to the stress characteristics, wherein the bearing wall mainly bears vertical load, such as a masonry wall; the latter is mainly to bear horizontal loads. In earthquake-proof shelters, horizontal loads are primarily generated by horizontal seismic action, and shear walls are sometimes referred to as earthquake-proof walls.
The shear wall can be divided into a steel plate shear wall, a reinforced concrete shear wall and a reinforced block shear wall according to structural materials.
The existing shear wall mostly adopts the air-entrapping block to manufacture the shear wall, but the anti-shearing force and the anti-bending strength of the air-entrapping block are not enough, and other materials are adopted to increase the dead weight of a house, so that the air-entrapping block needs to be modified, the anti-shearing and anti-bending capabilities of the air-entrapping block are increased, and meanwhile, the assembly is convenient.
Disclosure of Invention
In order to solve the technical problem, the invention provides an assembly type steel structure building shear wall and an installation method thereof.
The technical scheme of the invention is as follows: an assembly type steel structure building shear wall comprises an air-entraining block, a concrete column core and a connecting piece, wherein two sides of the air-entraining block are respectively provided with two notches, the upper surface and the lower surface of the notches on the two sides are respectively provided with a through hole, the two concrete column cores are vertically arranged in the middle of the air-entraining block, a hemispherical bulge is arranged at the top of each concrete column core, a hemispherical groove is arranged at the bottom of each concrete column core, a through hole is vertically arranged at the center of each concrete column core, the upper part of the through hole is inserted with a steel bar, the lower end of the steel bar is inserted to the position of the through hole 1/2, the middle part of the steel bar is fixedly connected with the hemispherical bulge through threads, the top of the steel bar protrudes out of the upper surface of the air-entrapping block, the protruding length is 1/2 the height of the air-entrapping block, the connecting piece comprises a through rib and connecting blocks, the connecting blocks are filled in the gaps of the adjacent air-adding blocks, and the through rib movably penetrates through the through hole and the connecting blocks; the outer side of the hemispherical bulge is made of concrete with the reference number 400, a metal nut is placed at the center of the hemispherical bulge and is used for being in threaded connection with the middle of a steel bar, the steel bar is connected through the metal nut, and the connection height can be finely adjusted.
Further, the manufacturing method of the assembly type steel structure building shear wall comprises the following steps:
s1: mixing materials: respectively weighing 57 parts of waste clay brick slag, 1 part of lignosulfonate, 3 parts of sodium chloride, 2 parts of lithium chloride, 38 parts of cement, 8 parts of quicklime, 3 parts of gypsum and 8 parts of micro silicon powder according to the mass ratio, mixing and uniformly stirring;
s2: pulping: mixing K12, span and gelatin according to a mass ratio of 3:3:1, electromagnetically stirring to obtain stable slurry, and mixing the mixed material and the slurry according to a mass ratio of 5:2 to obtain foaming slurry;
s3: casting an air adding block and a connecting block: after the mould is fixed, pouring the foaming slurry into the mould of the aerated block and the connecting block, after casting, steaming for 3-4h in a moist heat environment with the temperature of 180-200 ℃ and the pressure of 1.3-1.5MPa, naturally cooling, naturally curing for 1 day, and taking out the mould at the through hole of the aerated block and the mould at the through hole of the connecting block;
s4: casting a concrete column core: taking out the cylindrical mold at the through hole position, inserting the steel bar, adding concrete with the reference number of 300 into the through hole position, manufacturing a hemispherical bulge at the top by adopting the hemispherical mold, drying for 3 hours at the ambient temperature of 50 ℃, demolding, and air-drying for 5-8 days at room temperature after demolding.
Further, the mounting method of the assembly type steel structure building shear wall comprises the following steps:
s1, ground cleaning and leveling: removing impurities at the bottom of a place where a shear wall needs to be built, leveling the ground through cement mortar, and assembling the prepared shear wall module after leveling;
s2: building a wall: after cement mortar was paintd to the bottom, place first layer aerated block, got rid of the excessive cement mortar of bottom, then fill in the connecting block in two adjacent breach departments, through the through hole that runs through muscle through connection breach department, to inserting the reinforcing bar at concrete column core top to through the protruding middle part at the reinforcing bar of threaded connection hemisphere type, the bottom of second layer aerated block aligns with lower floor's aerated block, inserts the reinforcing bar top of lower floor at last
The concrete columns of the layer are piled up in the through holes in the core in a reciprocating way;
s3: capping: the top layer air adding block is not provided with a steel bar and a hemispherical bulge, and the gap at the top is filled with mortar at the top.
Furthermore, the steel bars (24) and the penetrating bars (31) are hot-rolled ribbed steel bars GB1499.2-2018, and the nominal diameters are 10mm and 8mm respectively.
Further, can adopt the dislocation mode of building a wall in step S2, the dislocation mode of building a wall is built a wall through the dislocation connected mode of upper strata and lower floor, specifically is that the reinforcing bar of the concrete column core on lower floor right side inserts upper air entrainment piece left side concrete column core bottom, and the reinforcing bar of the left concrete column core of lower floor inserts the mode of upper air entrainment piece right side concrete column core bottom and builds a wall.
Further, the specification of the air-entraining block includes 600 × 240 × 60mm, 600 × 240 × 120 mm.
Further, the stirring time in the S1 is 1-2h, the stirring speed is 500r/min, the electromagnetic stirring speed in the S2 is 3000r/min, and the stirring time is 3-4 h.
Further, when the air-entrapping block needs to be cut in the wall building process and the required length is less than the length 1/2 of the air-entrapping block, the connecting block is adopted to fill the side face.
The invention has the beneficial effects that:
(1) the invention adopts the air-entraining block material as the main structure, the dead weight of the building can be reduced due to the light dead weight, the gravity borne by the weighing wall is reduced, and the air-entraining block material is widely applied to high-rise buildings.
(2) According to the invention, the connecting concrete column core and the steel bars are added into the air-entrapping block, so that the shear resistance and the bending resistance of the air-entrapping block are improved, and the shear wall has better shear resistance.
(3) The invention adopts an assembly type installation method, increases the construction speed, improves the construction efficiency, is convenient and rapid, has various installation modes, and is suitable for complex wall structures.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view showing a connection structure of the hemispherical protrusions according to the present invention;
fig. 3 shows two mounting modes of the present invention.
Wherein, 1-air block, 2-concrete column core, 3-connecting piece, 11-notch, 12-through hole, 21-hemispherical bulge, 22-hemispherical groove, 23-through hole, 24-steel bar, 31-through rib, 32-connecting block, 211-metal nut
Detailed Description
Example 1:
as shown in figure 1, the assembled steel structure building shear wall comprises an air-adding block 1, two concrete column cores 2 and connecting pieces 3, wherein two notches 11 are respectively arranged on two sides of the air-adding block 1, through holes 12 are respectively arranged on the upper surface and the lower surface of the notches 11 on the two sides, two concrete column cores 2 are arranged, the two concrete column cores 2 are vertically arranged in the middle of the air-adding block 1, hemispherical bulges 21 are arranged at the tops of the concrete column cores 2, hemispherical grooves 22 are arranged at the bottoms of the concrete column cores 2, through holes 23 are vertically arranged at the centers of the concrete column cores 2, reinforcing steel bars 24 are inserted above the through holes 23, the lower ends of the reinforcing steel bars 24 are inserted into the through holes 231/2, the middle parts of the reinforcing steel bars 24 are fixedly connected with the hemispherical bulges 21 through threads, the tops of the reinforcing steel bars 24 protrude out of the upper surface of the air-adding block 1, the protruding length is 1/2 of the height of the air-adding block 1, each connecting piece 3 comprises penetrating bars, the penetrating rib 31 movably penetrates through the penetrating hole 12 and the connecting block 32, as shown in fig. 2, the outer side of the hemispherical protrusion 21 is made of concrete with the reference number 400, a metal nut 211 is placed at the center of the hemispherical protrusion, the nut is used for being in threaded connection with the middle of the steel bar 24, the steel bar 24 is connected through the metal nut 211, and the connection height can be finely adjusted; the steel bar 24 and the penetrating bar 31 are both hot rolled ribbed steel bars GB1499.2-2018, and the nominal diameters are 10mm and 8mm respectively.
A manufacturing method of an assembly type steel structure building shear wall comprises the following steps:
s1: mixing materials: respectively weighing 57 parts of waste clay brick slag, 1 part of lignosulfonate, 3 parts of sodium chloride, 2 parts of lithium chloride, 38 parts of cement, 8 parts of quicklime, 3 parts of gypsum and 8 parts of micro silicon powder according to the mass ratio, mixing and uniformly stirring for 1-2 hours at the stirring speed of 500 r/min;
s2: pulping: mixing K12, span and gelatin according to a mass ratio of 3:3:1, obtaining stable slurry by adopting electromagnetic stirring, then mixing the mixed material and the slurry according to a mass ratio of 5:2 to obtain foaming slurry, wherein the electromagnetic stirring speed is 1000r/min, and the stirring time is 3-4 hours;
s3: casting the air-entraining block 1 and the connecting block 32: after the mold is fixed, pouring the foaming slurry into the molds of the air-entraining block 1 and the connecting block 32, after casting, performing steam curing for 3-4h in a moist heat environment with the temperature of 180-200 ℃ and the pressure of 1.3-1.5MPa, after natural cooling, performing natural curing for 1 day, and taking out the mold at the through hole 12 of the air-entraining block 1 and the mold at the through hole 12 of the connecting block 32;
s4: casting a concrete column core 2: taking out the cylindrical mold at the position of the through hole 23, inserting the steel bar 24, adding concrete with the reference number of 300 into the position of the through hole 23, manufacturing the hemispherical bulge 21 at the top by adopting the hemispherical mold, drying for 3 hours at the ambient temperature of 50 ℃, demolding, and air-drying for 5-8 days at room temperature after demolding; the specification of the air-entraining block 1 comprises 600 multiplied by 240 multiplied by 60mm and 600 multiplied by 240 multiplied by 120 mm.
The mounting method of the assembled steel structure building shear wall comprises the following steps:
s1, ground cleaning and leveling: removing impurities at the bottom of a place where a shear wall needs to be built, leveling the ground through cement mortar, and assembling the prepared shear wall module after leveling;
s2: building a wall: as shown in fig. 3, after cement mortar is applied to the bottom, a first layer of air-entraining block 1 is placed, the cement mortar overflowing from the bottom layer is removed, then connecting blocks 32 are plugged into two adjacent gaps 11, through-holes 12 penetrating through the connecting gaps 11 by penetrating ribs 31, reinforcing steel bars 24 are inserted into the top of the concrete column core 2, and the hemispherical protrusions 21 are connected to the middle parts of the reinforcing steel bars 24 by threads, the bottom of the second layer of air-entraining block 1 is aligned with the lower layer of air-entraining block 1, the top of the lower layer of reinforcing steel bars 24 is inserted into through-holes 23 in the upper layer of concrete column core 2, and the concrete column core is repeatedly and upwards stacked; the staggered wall building method can be adopted, and is characterized in that the wall building is carried out in a staggered connection mode of an upper layer and a lower layer, specifically, the wall building is carried out in a mode that the reinforcing steel bars 24 of the concrete column core 2 on the right side of the lower layer are inserted into the bottom of the concrete column core 2 on the left side of the upper layer air-adding block 1, and the reinforcing steel bars 24 of the concrete column core 2 on the left side of the lower layer are inserted into the bottom of the concrete column core 2 on the right side of the upper layer; when the air-entraining block 1 needs to be cut in the wall building process and the required length is less than 1/2 of the length of the air-entraining block 1, the connecting block 32 is adopted to fill the side face;
s3: capping: the top layer air-entrapping block 1 is not provided with the reinforcing steel bars 24 and the hemispherical protrusions 21, and gaps on the top are filled with mortar.
Example 2:
as shown in figure 1, the assembled steel structure building shear wall comprises an air-adding block 1, two concrete column cores 2 and connecting pieces 3, wherein two notches 11 are respectively arranged on two sides of the air-adding block 1, through holes 12 are respectively arranged on the upper surface and the lower surface of the notches 11 on the two sides, two concrete column cores 2 are arranged, the two concrete column cores 2 are vertically arranged in the middle of the air-adding block 1, hemispherical bulges 21 are arranged at the tops of the concrete column cores 2, hemispherical grooves 22 are arranged at the bottoms of the concrete column cores 2, through holes 23 are vertically arranged at the centers of the concrete column cores 2, reinforcing steel bars 24 are inserted above the through holes 23, the lower ends of the reinforcing steel bars 24 are inserted into the through holes 231/2, the middle parts of the reinforcing steel bars 24 are fixedly connected with the hemispherical bulges 21 through threads, the tops of the reinforcing steel bars 24 protrude out of the upper surface of the air-adding block 1, the protruding length is 1/2 of the height of the air-adding block 1, each connecting piece 3 comprises penetrating bars, the penetrating rib 31 movably penetrates through the penetrating hole 12 and the connecting block 32, as shown in fig. 2, the outer side of the hemispherical protrusion 21 is made of concrete with the reference number 400, a metal nut 211 is placed at the center of the hemispherical protrusion, the nut is used for being in threaded connection with the middle of the steel bar 24, the steel bar 24 is connected through the metal nut 211, and the connection height can be finely adjusted; the steel bar 24 and the penetrating bar 31 are both hot rolled ribbed steel bars GB1499.2-2018, and the nominal diameters are 10mm and 8mm respectively.
A manufacturing method of an assembly type steel structure building shear wall comprises the following steps:
s1: mixing materials: respectively weighing 57 parts of waste clay brick slag, 1 part of lignosulfonate, 3 parts of sodium chloride, 2 parts of lithium chloride, 38 parts of cement, 8 parts of quicklime, 3 parts of gypsum and 8 parts of micro silicon powder according to the mass ratio, mixing and uniformly stirring for 1h at the stirring speed of 500 r/min;
s2: pulping: mixing K12, span and gelatin according to a mass ratio of 3:3:1, obtaining stable slurry by adopting electromagnetic stirring, then mixing the mixed material and the slurry according to a mass ratio of 5:2 to obtain foaming slurry, wherein the electromagnetic stirring speed is 1000r/min, and the stirring time is 3 hours;
s3: casting the air-entraining block 1 and the connecting block 32: after the mold is fixed, pouring foaming slurry into the molds of the air-entraining block 1 and the connecting block 32, steaming for 3 hours at 180 ℃ and under 1.3MPa of damp and hot environment after casting is finished, naturally cooling, naturally curing for 1 day, and taking out the mold at the through hole 12 of the air-entraining block 1 and the mold at the through hole 12 of the connecting block 32;
s4: casting a concrete column core 2: taking out the cylindrical mold at the position of the through hole 23, inserting the steel bar 24, adding concrete with the reference number of 300 into the position of the through hole 23, manufacturing the hemispherical bulge 21 at the top by adopting the hemispherical mold, drying for 3 hours at the ambient temperature of 50 ℃, demolding, and air-drying for 5 days at room temperature after demolding; the specification of the air-entraining block 1 comprises 600 multiplied by 240 multiplied by 60mm and 600 multiplied by 240 multiplied by 120 mm.
The mounting method of the assembled steel structure building shear wall comprises the following steps:
s1, ground cleaning and leveling: removing impurities at the bottom of a place where a shear wall needs to be built, leveling the ground through cement mortar, and assembling the prepared shear wall module after leveling;
s2: building a wall: as shown in fig. 3, after cement mortar is applied to the bottom, a first layer of air-entraining block 1 is placed, the cement mortar overflowing from the bottom layer is removed, then connecting blocks 32 are plugged into two adjacent gaps 11, through-holes 12 penetrating through the connecting gaps 11 by penetrating ribs 31, reinforcing steel bars 24 are inserted into the top of the concrete column core 2, and the hemispherical protrusions 21 are connected to the middle parts of the reinforcing steel bars 24 by threads, the bottom of the second layer of air-entraining block 1 is aligned with the lower layer of air-entraining block 1, the top of the lower layer of reinforcing steel bars 24 is inserted into through-holes 23 in the upper layer of concrete column core 2, and the concrete column core is repeatedly and upwards stacked; the staggered wall building method can be adopted, and is characterized in that the wall building is carried out in a staggered connection mode of an upper layer and a lower layer, specifically, the wall building is carried out in a mode that the reinforcing steel bars 24 of the concrete column core 2 on the right side of the lower layer are inserted into the bottom of the concrete column core 2 on the left side of the upper layer air-adding block 1, and the reinforcing steel bars 24 of the concrete column core 2 on the left side of the lower layer are inserted into the bottom of the concrete column core 2 on the right side of the upper layer; when the air-entraining block 1 needs to be cut in the wall building process and the required length is less than 1/2 of the length of the air-entraining block 1, the connecting block 32 is adopted to fill the side face;
s3: capping: the top layer air-entrapping block 1 is not provided with the reinforcing steel bars 24 and the hemispherical protrusions 21, and gaps on the top are filled with mortar.
Example 3:
as shown in figure 1, the assembled steel structure building shear wall comprises an air-adding block 1, two concrete column cores 2 and connecting pieces 3, wherein two notches 11 are respectively arranged on two sides of the air-adding block 1, through holes 12 are respectively arranged on the upper surface and the lower surface of the notches 11 on the two sides, two concrete column cores 2 are arranged, the two concrete column cores 2 are vertically arranged in the middle of the air-adding block 1, hemispherical bulges 21 are arranged at the tops of the concrete column cores 2, hemispherical grooves 22 are arranged at the bottoms of the concrete column cores 2, through holes 23 are vertically arranged at the centers of the concrete column cores 2, reinforcing steel bars 24 are inserted above the through holes 23, the lower ends of the reinforcing steel bars 24 are inserted into the through holes 231/2, the middle parts of the reinforcing steel bars 24 are fixedly connected with the hemispherical bulges 21 through threads, the tops of the reinforcing steel bars 24 protrude out of the upper surface of the air-adding block 1, the protruding length is 1/2 of the height of the air-adding block 1, each connecting piece 3 comprises penetrating bars, the penetrating rib 31 movably penetrates through the penetrating hole 12 and the connecting block 32, as shown in fig. 2, the outer side of the hemispherical protrusion 21 is made of concrete with the reference number 400, a metal nut 211 is placed at the center of the hemispherical protrusion, the nut is used for being in threaded connection with the middle of the steel bar 24, the steel bar 24 is connected through the metal nut 211, and the connection height can be finely adjusted; the steel bar 24 and the penetrating bar 31 are both hot rolled ribbed steel bars GB1499.2-2018, and the nominal diameters are 10mm and 8mm respectively.
Further, the manufacturing method of the assembly type steel structure building shear wall comprises the following steps:
s1: mixing materials: respectively weighing 57 parts of waste clay brick slag, 1 part of lignosulfonate, 3 parts of sodium chloride, 2 parts of lithium chloride, 38 parts of cement, 8 parts of quicklime, 3 parts of gypsum and 8 parts of micro silicon powder according to the mass ratio, mixing and uniformly stirring for 1.5 hours at the stirring speed of 500 r/min;
s2: pulping: mixing K12, span and gelatin according to a mass ratio of 3:3:1, obtaining stable slurry by adopting electromagnetic stirring, then mixing the mixed material and the slurry according to a mass ratio of 5:2 to obtain foaming slurry, wherein the electromagnetic stirring speed is 1000r/min, and the stirring time is 3.5 hours;
s3: casting the air-entraining block 1 and the connecting block 32: after the mold is fixed, pouring foaming slurry into the mold of the air-entraining block 1 and the connecting block 32, after casting, steaming at 190 ℃ and 1.4MPa in a damp and hot environment for 3.5h, naturally cooling, naturally curing for 1 day, and taking out the mold at the through hole 12 of the air-entraining block 1 and the mold at the through hole 12 of the connecting block 32;
s4: casting a concrete column core 2: taking out the cylindrical mold at the position of the through hole 23, inserting the steel bar 24, adding concrete with the reference number of 300 into the position of the through hole 23, manufacturing the hemispherical bulge 21 at the top by adopting the hemispherical mold, drying for 3 hours at the ambient temperature of 50 ℃, demolding, and air-drying for 6 days at room temperature after demolding; the specification of the air-entraining block 1 comprises 600 multiplied by 240 multiplied by 60mm and 600 multiplied by 240 multiplied by 120 mm.
The mounting method of the assembled steel structure building shear wall comprises the following steps:
s1, ground cleaning and leveling: removing impurities at the bottom of a place where a shear wall needs to be built, leveling the ground through cement mortar, and assembling the prepared shear wall module after leveling;
s2: building a wall: as shown in fig. 3, after cement mortar is applied to the bottom, a first layer of air-entraining block 1 is placed, the cement mortar overflowing from the bottom layer is removed, then connecting blocks 32 are plugged into two adjacent gaps 11, through-holes 12 penetrating through the connecting gaps 11 by penetrating ribs 31, reinforcing steel bars 24 are inserted into the top of the concrete column core 2, and the hemispherical protrusions 21 are connected to the middle parts of the reinforcing steel bars 24 by threads, the bottom of the second layer of air-entraining block 1 is aligned with the lower layer of air-entraining block 1, the top of the lower layer of reinforcing steel bars 24 is inserted into through-holes 23 in the upper layer of concrete column core 2, and the concrete column core is repeatedly and upwards stacked; the staggered wall building method can be adopted, and is characterized in that the wall building is carried out in a staggered connection mode of an upper layer and a lower layer, specifically, the wall building is carried out in a mode that the reinforcing steel bars 24 of the concrete column core 2 on the right side of the lower layer are inserted into the bottom of the concrete column core 2 on the left side of the upper layer air-adding block 1, and the reinforcing steel bars 24 of the concrete column core 2 on the left side of the lower layer are inserted into the bottom of the concrete column core 2 on the right side of the upper layer; when the air-entraining block 1 needs to be cut in the wall building process and the required length is less than 1/2 of the length of the air-entraining block 1, the connecting block 32 is adopted to fill the side face;
s3: capping: the top layer air-entrapping block 1 is not provided with the reinforcing steel bars 24 and the hemispherical protrusions 21, and gaps on the top are filled with mortar.
Claims (8)
1. An assembly type steel structure building shear wall is characterized by comprising an air-entraining block (1), a concrete column core (2) and a connecting piece (3);
two notches (11) are respectively arranged on two sides of the air-entraining block (1), through holes (12) are respectively arranged on the upper surface and the lower surface of the notches (11) on the two sides, two concrete column cores (2) are arranged, and the two concrete column cores (2) are vertically arranged in the middle of the air-entraining block (1);
a hemispherical bulge (21) is placed at the top of the concrete column core (2), a hemispherical groove (22) is formed in the bottom of the concrete column core (2), a through hole (23) is vertically formed in the center of the concrete column core (2), a steel bar (24) is inserted above the through hole (23), the lower end of the steel bar (24) is inserted into the through hole (23)1/2, the middle of the steel bar (24) is fixedly connected with the hemispherical bulge (21) through threads, the top of the steel bar (24) protrudes out of the upper surface of the air-adding block (1), the protruding length is equal to the height 1/2 of the air-adding block (1), the connecting piece (3) comprises a through rib (31) and a connecting block (32), the connecting block (32) is filled in a gap (11) of adjacent air-adding blocks (1), and the through rib (31) movably penetrates through the through hole (12) and the connecting block (32);
the outer side of the hemispherical bulge (21) is made of concrete with the reference number 400, a metal nut (211) is placed in the center of the hemispherical bulge, and the nut is used for being in threaded connection with the middle of the steel bar (24).
2. A method of manufacturing an assembled steel structure building shear wall according to claim 1, comprising the steps of:
s1: mixing materials: respectively weighing 57 parts of waste clay brick slag, 1 part of lignosulfonate, 3 parts of sodium chloride, 2 parts of lithium chloride, 38 parts of cement, 8 parts of quicklime, 3 parts of gypsum and 8 parts of micro silicon powder according to the mass ratio, mixing and uniformly stirring;
s2: pulping: mixing K12, span and gelatin according to a mass ratio of 3:3:1, electromagnetically stirring to obtain stable slurry, and mixing the mixed material and the slurry according to a mass ratio of 5:2 to obtain foaming slurry;
s3: casting the air-entraining block (1) and the connecting block (32): after the mold is fixed, pouring foaming slurry into the mold of the aerated block (1) and the connecting block (32), steaming for 4 hours at 200 ℃ and 1.5MPa in a damp and hot environment after casting is finished, naturally cooling, naturally curing for 1 day, and taking out the mold at the through hole (12) of the aerated block (1) and the mold at the through hole (12) of the connecting block (32);
s4: casting a concrete column core (2): and (3) taking out the cylindrical mold at the position of the through hole (23), inserting a steel bar (24), adding concrete with the reference number of 300 into the position of the through hole (23), manufacturing a hemispherical bulge (21) at the top by adopting the hemispherical mold, drying for 3 hours at the ambient temperature of 50 ℃, demolding, and air-drying for 8 days at room temperature after demolding.
3. A method of installing an assembled steel structural building shear wall according to claim 1, comprising the steps of:
s1, ground cleaning and leveling: removing impurities at the bottom of a place where a shear wall needs to be built, leveling the ground through cement mortar, and assembling the prepared shear wall module after leveling;
s2: building a wall: after cement mortar is smeared at the bottom, a first layer of aerated block (1) is placed, the cement mortar overflowing from the bottom layer is removed, then connecting blocks (32) are stuffed in two adjacent notches (11), through holes (12) penetrating through the connecting notches (11) by penetrating ribs (31), reinforcing steel bars (24) are inserted into the top of the concrete column core (2), and the top of the reinforcing steel bars (24) at the middle parts of the reinforcing steel bars (24) are connected by threads in a hemispherical protrusion (21), the bottom of the second layer of aerated block (1) is aligned with the lower layer of aerated block (1), the top of the lower layer of reinforcing steel bars (24) is inserted into through holes (23) in the concrete column core (2) at the upper layer, and the steps are repeated upwards;
s3: capping: the top layer air-entrapping block (1) is not provided with the steel bars (24) and the hemispherical bulges (21), and the gap at the top part is filled with mortar.
4. An assembled steel structural building shear wall according to claim 1, wherein the reinforcing bars (24) and the through-ribs (31) are hot rolled ribbed reinforcing bars GB1499.2-2018, with nominal diameters of 10mm and 8mm, respectively.
5. The method for installing the assembly type steel structure building shear wall according to claim 3, wherein the step S2 adopts a staggered wall building mode, the staggered wall building mode is a mode of building the wall by connecting an upper layer and a lower layer in a staggered way, specifically, the wall building mode is implemented by inserting the steel bars (24) of the concrete column core (2) at the right side of the lower layer into the bottom of the concrete column core (2) at the left side of the upper layer air-adding block (1), and inserting the steel bars (24) of the concrete column core (2) at the left side of the lower layer into the bottom of the concrete column core (2) at the right side of the upper layer air-adding block (1).
6. An assembled steel structural building shear wall according to claim 1, wherein the air-entraining agent (1) specifications comprise 600 x 240 x 60mm, 600 x 240 x 120 mm.
7. The method for manufacturing an assembled steel structure building shear wall according to claim 2, wherein the stirring time period in S1 is 1-2 hours, the stirring speed is 500r/min, the electromagnetic stirring speed in S2 is 3000r/min, and the stirring time period is 3-4 hours.
8. An assembled steel structure building shear wall according to claim 1, wherein the reinforcing bars (24) and the through-ribs (31) are hot rolled ribbed reinforcing bars GB 1499.2-2018.
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| CN113585534A (en) * | 2021-08-16 | 2021-11-02 | 漯河职业技术学院 | Assembled shear force wall |
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