CN108265835B - Prefabricated shear wall component assembly grouting sealing mechanism and sealing grouting method - Google Patents
Prefabricated shear wall component assembly grouting sealing mechanism and sealing grouting method Download PDFInfo
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- CN108265835B CN108265835B CN201810219382.5A CN201810219382A CN108265835B CN 108265835 B CN108265835 B CN 108265835B CN 201810219382 A CN201810219382 A CN 201810219382A CN 108265835 B CN108265835 B CN 108265835B
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- shear wall
- grouting
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- slurry layer
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- 238000007789 sealing Methods 0.000 title claims abstract description 192
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000011440 grout Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 27
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention relates to a prefabricated shear wall component assembly grouting sealing mechanism and a sealing grouting method, wherein the grouting sealing mechanism comprises a building board surface, a plurality of supporting bodies are arranged on the building board surface and are used for supporting vertical prefabricated shear wall components, and a concrete slurry layer is connected between the lower surface of the prefabricated shear wall components and the building board surface; the building board surface is provided with a sealing frame, the sealing frame corresponds to the outer edge of the horizontal section of the precast shear wall component and surrounds the outer side of the connecting concrete slurry layer to form a circle, the thickness of the sealing frame in the vertical direction is larger than that of the connecting concrete slurry layer, and the precast shear wall component is provided with a grouting channel penetrating through the connecting concrete slurry layer. The invention can effectively avoid the problem of slurry leakage of the connecting concrete slurry layer when the precast shear wall components are assembled, has good sealing performance, does not need to be provided with sealing edges, improves the connection strength of the precast shear wall components, can simultaneously realize the steel bar connection between the precast shear walls and the grouting connection of the connecting concrete slurry layer in combination with the grouting process, and effectively shortens the construction period.
Description
Technical Field
The invention belongs to the technical field of structural members in buildings, and particularly relates to a grouting sealing mechanism for assembling a prefabricated shear wall member and a sealing grouting method.
Background
In recent years, under the background requirement of greatly advocating green energy conservation, the building industry starts to apply force to popularize the assembled building, promotes building industrialization and standardization, and the corresponding specifications are gradually perfected, so that the duty ratio of the assembled building in the whole country is continuously improved, and the duty ratio is continuously optimized. The assembly type building is a change of a building mode and a revolution of a production mode, and the production and assembly construction processes of assembly type components are also becoming mature. The connection of the prefabricated shear wall components is most commonly that a grouting sleeve and a grouting anchor are lapped, the grouting sleeve with one end inserted with reinforcing steel bars is embedded in the prefabricated shear wall components, then the prefabricated shear wall components are hoisted and assembled on a fixed building, and when the prefabricated shear wall components are hoisted, the embedded wall longitudinal ribs extending out of the upper surface of the fixed building need to pass through a sealing cover of the grouting sleeve and are inserted into the other end of the grouting sleeve; after hoisting, filling grouting material into the grouting sleeve to realize fixed connection of reinforcing steel bars at two ends in the grouting sleeve; a connecting concrete slurry layer and a sealing edge are paved between the fixed building and the lower surface of the prefabricated shear wall component, the sealing edge is arranged at the outer side wall of the connecting concrete slurry layer to form a circle, the sealing edge comprises a rubber sealing lining of the inner ring and a high-strength sealing putty of the outer ring, and after the prefabricated shear wall component is installed, the high-strength sealing putty is trowelled along the outer side surface of the prefabricated shear wall component by a trowel. However, in the actual operation process, the rubber sealing lining and the high-strength sealing putty are extruded outwards due to overlarge pressure, so that the condition of slurry leakage is caused, the construction for connecting the concrete slurry layer and the sealing edge has to be reworked, the construction period is prolonged, and the assembly efficiency is low; meanwhile, the connecting space between the fixed building and the lower surface of the prefabricated shear wall component is limited, and the rubber sealing lining and the high-strength sealing putty of the sealing edge are definitely required to occupy the connecting space, so that the effective connecting sectional area is reduced, and the connecting strength of the prefabricated shear wall component is not good.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the grouting sealing mechanism and the sealing grouting method for the assembly of the prefabricated shear wall component, so that the problem that the bottom is easy to leak when the prefabricated shear wall component is assembled is avoided, the sealing performance is good, the leakage is effectively prevented, and the effect of reducing the connecting sectional area of the bottom of the prefabricated shear wall component is avoided.
In order to solve the technical problems, the invention adopts the following technical scheme:
the precast shear wall member assembling grouting sealing mechanism comprises a floor surface, wherein a plurality of supporting bodies are arranged on the floor surface and are in supporting connection with the vertical precast shear wall member through the supporting bodies, and a concrete slurry layer is connected between the lower surface of the precast shear wall member and the floor surface; the building board is characterized in that a sealing frame is arranged on the building board surface, the sealing frame corresponds to the outer edge of the horizontal section of the precast shear wall component and surrounds the outer side of the connecting concrete slurry layer to form a circle, the thickness of the sealing frame in the vertical direction is larger than that of the connecting concrete slurry layer so as to seal the connecting concrete slurry layer in the sealing frame, and a grouting channel penetrating through the connecting concrete slurry layer is arranged on the precast shear wall component.
The sealing frame is arranged on the floor surface and is surrounded at the bottom of the outer side of the precast shear wall member, namely, is surrounded at the outer side of the connecting concrete slurry layer, the bottom surface of the sealing frame is propped against the upper surface of the floor surface, the thickness of the sealing frame in the vertical direction is larger than that of the connecting concrete slurry layer, the upper part of the inner side surface of the sealing frame is propped against one circle of the outer side surface of the bottom of the precast shear wall member, grouting is carried out through a grouting channel, the problem of slurry leakage of the connecting concrete slurry layer during assembly of the precast shear wall member can be effectively avoided, the sealing performance is good, no sealing edge is needed, the connecting sectional area of the bottom of the precast shear wall member is not reduced, and the connecting strength of the precast shear wall member is improved.
According to the technical scheme, the grouting channel comprises a vertical grouting sleeve pre-buried in the precast shear wall member, the grouting sleeve is a hollow cylinder, and the lower end of the grouting sleeve is flush with the lower surface of the precast shear wall member and is communicated with the connecting concrete slurry layer; the side wall of the upper end of the grouting sleeve is provided with a grout outlet, the side wall of the lower end of the grouting sleeve is provided with a grouting hole, the axes of the grout outlet and the grouting hole are horizontal and parallel to each other and face the same side wall of the prefabricated shear wall component, and the prefabricated shear wall component is provided with two through holes which are respectively communicated with the grout outlet and the grouting hole.
Thus, the grouting process is convenient to implement, the grout outlet and the grouting hole are positioned on the same side wall of the prefabricated shear wall member, the grouting and grouting process is convenient to operate, and the grouting sleeve is also convenient to process and manufacture a die of the prefabricated shear wall member during pre-embedding.
Further, the floor surface comprises a vertical lower prefabricated shear wall, the upper edge of the lower prefabricated shear wall is connected with a horizontal structure plate surface, and the upper surface of the lower prefabricated shear wall is flush with the upper surface of the structure plate surface; the lower prefabricated shear wall is provided with vertical reserved wall longitudinal ribs extending out of the upper surface of the lower prefabricated shear wall, the reserved wall longitudinal ribs are inserted into the lower end of the grouting sleeve, vertical embedded bars are embedded in the prefabricated shear wall component, and the lower parts of the embedded bars are inserted into the upper end of the grouting sleeve.
Therefore, the grouting process of the grouting sleeve can be combined to simultaneously realize the reinforcement connection between the precast shear walls and the grouting connection of the connecting concrete slurry layer, the operation is simple and convenient, the construction period is effectively shortened, and unexpected technical effects are obtained.
Further, the sealing frame is formed by surrounding two side face sealing strips and two end face sealing strips between the two side face sealing strips, and the side face sealing strips and the end face sealing strips are connected through fasteners so that the sealing frame is of a detachable structure.
Therefore, the sealing frame is more flexible to operate and is not required to be sleeved integrally, and the side sealing strips and the end sealing strips can be arranged on the outer side of the prefabricated shear wall component in a surrounding mode after the prefabricated shear wall component is lifted, and are sequentially connected and fixed through fasteners.
Further, the fastening pieces are bolts, connecting holes are respectively formed in two end faces of the end face sealing strip, and through holes corresponding to the connecting holes are formed in the side face sealing strips; the bolts penetrate through the through holes and are in threaded connection with the connecting holes so as to connect the side sealing strips and the end sealing strips.
Therefore, the bolts are used for connection and fixation, so that the cost is low, the operation is simple and easy, and the connection is reliable; in implementation, the connecting holes respectively arranged on the two end surfaces of the end surface sealing strip can also be in the form of communicated through holes, and the bolts penetrate through the through holes of one side surface sealing strip, the connecting holes and the through holes of the other side surface sealing strip and then are fastened by matching nuts.
Further, the through hole is of a through groove structure extending along the length direction of the side sealing strip, so that the connection position of the end sealing strip and the side sealing strip can be adjusted in the length direction of the side sealing strip; the vertical distance between the through groove structure and the bottom surface of the side sealing strip is greater than the thickness of the connecting concrete slurry layer.
Therefore, the method has strong applicability, and can be suitable for prefabricated shear wall components with different lengths, and the thicknesses of the prefabricated shear wall components (namely the wall thickness) are generally consistent, so that the length of the end face sealing strip corresponds to the thickness of the prefabricated shear wall components; in implementation, the end face sealing strip can be set to be in a structure form with adjustable length so as to further improve applicability, and the invention is not limited; according to the sealing use purpose of the sealing frame, the opening position of the through groove structure is required to ensure that the vertical distance from the lower wall to the bottom surface of the side sealing strip is larger than the thickness of the connecting concrete slurry layer so as to avoid the grouting material from leaking out of the through groove structure, and the sealing performance is ensured.
Further, the side sealing strips and the end sealing strips are all angle steel, one side of the angle steel is horizontal, and the other side of the angle steel is upward and positioned at the inner side of the sealing frame; the two ends of the angle steel serving as the end face sealing strip are fixedly connected with end plates, and the connecting holes are formed in the end plates.
Thus, the manufacturing materials are simple and easy to obtain, the cost is low, the weight is light, and the operation is more convenient; in implementation, the connecting hole can also be in the form of a through hole, and the bolt passes through the through hole and the connecting hole and then is fastened by being matched with the nut, so that the invention is not limited.
Further, PE material layers are adhered and covered on the inner side surface and the bottom surface of the sealing frame.
Therefore, the bottom surface and the inner side surface of the sealing frame are in a circle butt joint with the upper surface of the fixed building and the outer side surface of the bottom of the prefabricated shear wall component through the PE material layer, so that the sealing performance is further improved, and the leakage of the connecting concrete slurry layer is avoided. In the implementation, the PE material layer can be adhered and covered on the bottom surfaces of the side sealing strips and the end sealing strips in advance and face to one side surface in the sealing frame; in implementation, the vertical distance from the lower wall of the through groove structure to the bottom surface of the side sealing strip is greater than the thickness of the connecting concrete slurry layer, so the adhesion coverage height of the side sealing strip facing the PE material layer on the side surface in the sealing frame can be corresponding to the position of the lower wall of the through groove structure (greater than the thickness of the connecting concrete slurry layer), or can be completely adhered to cover the side surface, and then the PE material layer is provided with a yielding groove corresponding to the through groove structure.
The invention also relates to a prefabricated shear wall component assembly sealing grouting method based on the prefabricated shear wall component assembly grouting sealing mechanism; the method comprises the following specific steps:
1) Assembling the prefabricated shear wall component on the floor slab surface to form a connecting concrete slurry layer;
2) A sealing frame is arranged in a surrounding manner, so that the bottom surface of the sealing frame is abutted against the floor surface, and the inner side surface of the sealing frame is abutted against the periphery of the outer side surface of the bottom of the prefabricated shear wall component;
3) Pumping grouting material into the grouting sleeve from the grouting holes until the grouting material overflows from the grouting holes on the grouting sleeve after filling the inner cavity of the grouting sleeve with the connecting concrete slurry layer, stopping injection, and plugging the grouting holes and the grouting holes, thereby realizing the simultaneous grouting of the connecting concrete slurry layer and the grouting sleeve;
4) And after the grouting material is solidified to meet the strength requirement, the sealing frame is removed.
The assembly in the step 1) is hoisting, the hoisting process comprises sleeving a grouting sleeve pre-buried at the lower end of the precast shear wall component into a reserved wall longitudinal rib extending out of the upper surface of a floor surface, and the floor surface supports the vertical precast shear wall component through a support body so as to form a connecting concrete slurry layer between the lower surface of the precast shear wall component and the floor surface. The process of enclosing the sealing frame in the step 2) comprises the following steps: and respectively arranging two side sealing strips included in the sealing frame at two sides of the bottom of the prefabricated shear wall member, respectively arranging two end sealing strips included in the sealing frame at two ends of the bottom of the prefabricated shear wall member, connecting the side sealing strips and the end sealing strips through fasteners to form the sealing frame, abutting the bottom surface of the sealing frame with the floor surface through the PE material layer adhered and covered on the surface, and abutting the inner side surface of the sealing frame with one periphery of the outer side surface of the bottom of the prefabricated shear wall member through the PE material layer adhered and covered on the surface.
Compared with the prior art, the invention has the following beneficial effects:
1. the grouting sealing mechanism can be combined with the grouting process of the grouting sleeve to simultaneously realize the reinforcement connection between the prefabricated shear walls and the grouting connection of the connecting concrete slurry layer, is simple and convenient to operate, and effectively shortens the construction period.
2. The invention can effectively avoid the problem of slurry leakage of the connecting concrete slurry layer when the precast shear wall member is assembled, has good sealing performance, does not need to arrange a sealing edge, does not reduce the connecting sectional area of the bottom of the precast shear wall member, and improves the connecting strength of the precast shear wall member.
3. The sealing frame is detachable, flexible and convenient to operate, reliable in connection, simple to manufacture and low in cost.
4. The sealing frame is adjustable in length, suitable for prefabricated shear wall components with different lengths, high in applicability and suitable for popularization and application.
Drawings
FIG. 1-front view of an embodiment of the present invention;
fig. 2-top view of fig. 1;
FIG. 3-section A-A of FIG. 1;
FIG. 4-a block diagram illustrating a seal frame in a specific embodiment of the invention alone;
fig. 5-4 left side view;
fig. 6-4 are bottom views;
the sealing frame 1, the side sealing strips 11, the through groove structure 111, the end sealing strips 12, the end plates 121, the bolts 2, the nuts 21, the PE material layer 3, the prefabricated shear wall component 4, the grouting sleeve 41, the grout outlet 411, the grouting holes 412, the sealing cover 413, the through holes 42, the embedded steel bars 43, the floor slab 5, the lower prefabricated shear wall 51, the structural slab 52, the reserved wall longitudinal bars 511, the supporting body 6 and the connecting concrete grout layer 7.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Referring to fig. 1 and 2, the prefabricated shear wall component assembling grouting sealing mechanism according to the embodiment of the invention comprises a floor surface 5, wherein a plurality of supporting bodies 6 are arranged on the floor surface 5 and support a vertical prefabricated shear wall component 4 through the supporting bodies 6, and a concrete slurry layer 7 is connected between the lower surface of the prefabricated shear wall component 4 and the floor surface 5; the floor face 5 is provided with a sealing frame 1, the sealing frame 1 corresponds to the outer edge of the horizontal section of the precast shear wall member 4 and is surrounded on the outer side of the connecting concrete slurry layer 7 to form a circle, the thickness of the sealing frame 1 in the vertical direction is larger than that of the connecting concrete slurry layer 7 so as to seal the connecting concrete slurry layer 7 in the sealing frame 1, and the precast shear wall member 4 is provided with a grouting channel penetrating through the connecting concrete slurry layer 7.
Referring to fig. 3, the grouting channel comprises a vertical grouting sleeve 41 pre-embedded in the precast shear wall member 4, wherein the grouting sleeve 41 is a hollow cylinder, and the lower end of the grouting sleeve 41 is level with the lower surface of the precast shear wall member 4 and is communicated with the connecting concrete grout layer 7; a grouting hole 411 is formed in the side wall of the upper end of the grouting sleeve 41, a grouting hole 412 is formed in the side wall of the lower end of the grouting sleeve 41, the axes of the grouting hole 411 and the grouting hole 412 are horizontal and parallel to each other and face the same side wall of the prefabricated shear wall member 4, and two through holes 42 which are respectively communicated with the grouting hole 411 and the grouting hole 412 are formed in the prefabricated shear wall member 4; the floor slab surface 5 comprises a vertical lower precast shear wall 51, the upper edge of the lower precast shear wall 51 is connected with a horizontal structure plate surface 52, and the upper surface of the lower precast shear wall 51 is flush with the upper surface of the structure plate surface 52; the lower prefabricated shear wall 51 is provided with vertical reserved wall longitudinal ribs 511 extending out of the upper surface of the lower prefabricated shear wall 51, the reserved wall longitudinal ribs 511 are inserted into the lower end of the grouting sleeve 41, vertical embedded bars 43 are embedded in the prefabricated shear wall component 4, and the lower parts of the embedded bars 43 penetrate through sealing covers 413 at the upper end of the grouting sleeve 41 and are inserted into the upper end of the grouting sleeve 41.
Referring to fig. 1, 4 to 6, the sealing frame 1 is formed by enclosing two side sealing strips 11 and two end sealing strips 12 between the two side sealing strips 11, and the side sealing strips 11 and the end sealing strips 12 are connected by fasteners so that the sealing frame 1 has a detachable structure. The fastening piece is a bolt 2, the side sealing strips 11 and the end sealing strips 12 are angle steels, one side of each angle steel is horizontal, and the other side of each angle steel is upward and positioned at the inner side of the sealing frame 1; an end plate 121 is welded and fixed on the internal corner side of two ends of the angle steel serving as the end face sealing strip 12, a connecting hole is formed in the end plate 121, and a through hole corresponding to the connecting hole is formed in the side face sealing strip 11; the bolts 2 penetrate through the through holes and the connecting holes and then are fastened by matching with nuts 21, so that the side sealing strips 11 are fixedly connected with the end sealing strips 12; the through hole is a through groove structure 111 extending along the length direction of the side sealing strip 11, so that the connection position of the end sealing strip 12 and the side sealing strip 11 can be adjusted along the length direction of the side sealing strip 11; the opening position of the through groove structure 111 ensures that the distance from the lower wall to the bottom surface of the side sealing strip 11 is larger than the thickness of the connecting concrete grout layer 7 so as to avoid the grouting material from leaking out of the through groove structure 111 and ensure the tightness; the PE material layer 3 is adhered and covered on the inner side surface and the bottom surface of the sealing frame 1 so as to further improve the sealing effect.
The invention also provides a prefabricated shear wall component assembly sealing grouting method based on the prefabricated shear wall component assembly grouting sealing mechanism; the method specifically comprises the following steps:
the precast shear wall member 4 pre-embedded with the embedded steel bars 43 and the grouting sleeve 41 is hoisted, then the grouting sleeve 41 of the precast shear wall member 4 is sleeved into the reserved wall longitudinal rib 511 of the lower precast shear wall 51, and as the sealing cover at the lower end of the grouting sleeve 41 is eliminated by the mechanism, the lower end opening of the grouting sleeve 41 is larger, so that the operation that the grouting sleeve 41 is sleeved into the reserved wall longitudinal rib 511 when the hoisting descends is easier to implement, a plurality of supporting bodies 6 are placed on the floor surface 5, the hoisted precast shear wall member 4 continues to descend and is supported by the supporting bodies 6 to leave a connecting concrete slurry layer 7 between the precast shear wall member 4 and the floor surface 5, and the hoisting is completed (at the moment, the vertical state of the precast shear wall member 4 is usually supported and kept by the special supporting members to ensure the safety). The two side face sealing strips 11 are respectively arranged on two sides of the bottom of the prefabricated shear wall member 4, the two side face sealing strips 12 are respectively arranged at two ends of the bottom of the prefabricated shear wall member 4, the sealing frame 1 is formed by fixedly connecting the sealing frame 1 through four bolts 2 which penetrate through corresponding through groove structures 111 and connecting holes and then are fastened by nuts 21, the bottom face and the inner side face of the sealing frame 1 are completely adhered and covered by PE material layers 3 through the face to be respectively abutted against the floor face 5 and the outer side face of the bottom of the prefabricated shear wall member 4, and the yielding grooves corresponding to the through groove structures 111 are formed in the PE material layers 3 on the side face, facing the inner side face of the sealing frame 1, of the side face sealing strips 11 so as not to influence the effect of the through groove structures 111. Grouting material is injected into the grouting sleeve 41 from the through holes 42 corresponding to the grouting holes 412 on the precast shear wall member 4 by using a grouting pump, the grouting material overflows from the through holes 42 corresponding to the grouting holes 411 after filling the inner cavity of the grouting sleeve 41 and connecting the concrete grout layer 7, and the injection is stopped, and the two through holes 42 are blocked, so that the assembly is completed; it can be seen that the grout outlet 411 and the grout outlet 412 are positioned on the same side wall of the prefabricated shear wall member 4, which is convenient for implementing the grouting process, convenient for the operation of grouting and grout collecting process, and also convenient for the processing of the grouting sleeve 41 and the manufacture of the die of the prefabricated shear wall member 4 during the pre-embedding; after the grouting material is solidified to meet the strength requirement, the sealing frame 1 can be dismantled; therefore, the grouting process of the grouting sleeve 41 is combined, and the steel bar connection between the precast shear walls and the grouting connection of the connecting concrete slurry layer 7 are simultaneously realized, so that the operation is simple and convenient, the construction period is effectively shortened, the outer side of the connecting concrete slurry layer 7 is not required to be provided with a sealing edge, the connection sectional area of the bottom of the precast shear wall member 4 is not reduced, and the connection strength of the precast shear wall member 4 is improved.
In implementation, the lower prefabricated shear wall 51 and the prefabricated shear wall member 4 may have the same structure, and the upper portion of the embedded bar 43 of the prefabricated shear wall member 4 extends out of the upper surface of the prefabricated shear wall member 4 to form the reserved wall longitudinal bar 511; in practice, the embedded bars 43 and the grouting sleeve 41 may be sleeves embedded in the prefabricated shear wall element 4.
In practice, the grout outlet 411 and the grout outlet 412 may be set as a grout outlet channel and a grout outlet channel connected to the grout sleeve 41, the axes of the grout outlet channel and the grout outlet channel are horizontal and parallel to each other and face the same direction, the grout outlet channel and the grout outlet channel are hollow and all penetrate through the inner cavity of the grout sleeve 41, and the grout outlet channel have a certain length so that one end far away from the grout sleeve 41 can slightly protrude out of the side wall of the prefabricated shear wall member 4 after being pre-buried, thus integrating the via hole 42 on the prefabricated shear wall member 4 on the grout sleeve 41 to make the prefabricated shear wall member 4 simpler. The above embodiments and further improvements should be considered within the scope of the invention.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (8)
1. The precast shear wall member assembling grouting sealing mechanism comprises a floor surface, wherein a plurality of supporting bodies are arranged on the floor surface and are in supporting connection with the vertical precast shear wall member through the supporting bodies, and a concrete slurry layer is connected between the lower surface of the precast shear wall member and the floor surface; the method is characterized in that: the building plate surface is provided with a sealing frame, the sealing frame corresponds to the outer edge of the horizontal section of the precast shear wall component and surrounds the outer side of the connecting concrete slurry layer to form a circle, the thickness of the sealing frame in the vertical direction is larger than that of the connecting concrete slurry layer so as to seal the connecting concrete slurry layer in the sealing frame, and the precast shear wall component is provided with a grouting channel penetrating to the connecting concrete slurry layer;
the grouting channel comprises a vertical grouting sleeve pre-buried in the precast shear wall member, the grouting sleeve is a hollow cylinder, and the lower end of the grouting sleeve is level with the lower surface of the precast shear wall member and is communicated with the connecting concrete slurry layer; the side wall of the upper end of the grouting sleeve is provided with a grout outlet, the side wall of the lower end of the grouting sleeve is provided with a grouting hole, the axes of the grout outlet and the grouting hole are horizontal and parallel to each other and face the same side wall of the prefabricated shear wall component, and the prefabricated shear wall component is provided with two through holes which are respectively communicated with the grout outlet and the grouting hole;
the sealing frame is formed by surrounding two side sealing strips and two end sealing strips between the two side sealing strips, and the side sealing strips and the end sealing strips are connected through fasteners so that the sealing frame is of a detachable structure.
2. The precast shear wall member assembly grout seal mechanism of claim 1, wherein: the floor surface comprises a vertical lower prefabricated shear wall, the upper edge of the lower prefabricated shear wall is connected with a horizontal structure plate surface, and the upper surface of the lower prefabricated shear wall is level with the upper surface of the structure plate surface; the lower prefabricated shear wall is provided with vertical reserved wall longitudinal ribs extending out of the upper surface of the lower prefabricated shear wall, the reserved wall longitudinal ribs are inserted into the lower end of the grouting sleeve, vertical embedded bars are embedded in the prefabricated shear wall component, and the lower parts of the embedded bars are inserted into the upper end of the grouting sleeve.
3. The precast shear wall member assembly grout seal mechanism of claim 1, wherein: the fastening piece is a bolt, connecting holes are respectively formed in two end faces of the end face sealing strip, and through holes corresponding to the connecting holes are formed in the side face sealing strips; the bolts penetrate through the through holes and are in threaded connection with the connecting holes so as to connect the side sealing strips and the end sealing strips.
4. A precast shear wall member assembly grout seal mechanism as defined in claim 3, wherein: the through holes are through groove structures extending along the length direction of the side sealing strips so that the connection positions of the end face sealing strips and the side sealing strips are adjustable in the length direction of the side sealing strips; the vertical distance between the through groove structure and the bottom surface of the side sealing strip is greater than the thickness of the connecting concrete slurry layer.
5. A precast shear wall member assembly grout seal mechanism as defined in claim 3, wherein: the side sealing strips and the end sealing strips are angle steel, one side of the angle steel is horizontal, and the other side of the angle steel is upward and positioned at the inner side of the sealing frame; the two ends of the angle steel serving as the end face sealing strip are fixedly connected with end plates, and the connecting holes are formed in the end plates.
6. The precast shear wall member assembly grout seal mechanism of any one of claims 1-5, wherein: PE material layers are adhered and covered on the inner side surface and the bottom surface of the sealing frame.
7. The method for assembling, sealing and grouting the prefabricated shear wall component is characterized by comprising the following steps of: the method is performed based on the prefabricated shear wall component of claim 2 being equipped with a grouting sealing mechanism; the method comprises the following specific steps:
1) Assembling the prefabricated shear wall component on the floor slab surface to form a connecting concrete slurry layer;
2) A sealing frame is arranged in a surrounding manner, so that the bottom surface of the sealing frame is abutted against the floor surface, and the inner side surface of the sealing frame is abutted against the periphery of the outer side surface of the bottom of the prefabricated shear wall component;
3) Pumping grouting material into the grouting sleeve from the grouting holes until the grouting material overflows from the grouting holes on the grouting sleeve after filling the inner cavity of the grouting sleeve with the connecting concrete slurry layer, stopping injection, and plugging the grouting holes and the grouting holes, thereby realizing the simultaneous grouting of the connecting concrete slurry layer and the grouting sleeve;
4) And after the grouting material is solidified to meet the strength requirement, the sealing frame is removed.
8. The method of precast shear wall member assembly sealing grouting of claim 7, wherein: the assembly in the step 1) is hoisting, the hoisting process comprises sleeving a grouting sleeve into a reserved wall longitudinal rib, and supporting a vertical precast shear wall member by a floor slab surface through a supporting body so as to form a connecting concrete slurry layer between the lower surface of the precast shear wall member and the floor slab surface;
the process of enclosing the sealing frame in the step 2) comprises the following steps: the sealing frame is formed by surrounding two side sealing strips and two end sealing strips between the two side sealing strips, the two side sealing strips are respectively arranged at two sides of the bottom of the prefabricated shear wall member, the two end sealing strips included by the sealing frame are respectively arranged at two ends of the bottom of the prefabricated shear wall member, the side sealing strips and the end sealing strips are connected through fasteners to form the sealing frame, the bottom surface of the sealing frame is abutted against the floor surface through the PE material layer adhered and covered on the surface, and the inner side surface of the sealing frame is abutted against one circle of the outer side surface of the bottom of the prefabricated shear wall member through the PE material layer adhered and covered on the surface.
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| CN109930704A (en) * | 2018-12-28 | 2019-06-25 | 中国二十冶集团有限公司 | The grouting bottom plugging device and its construction method of assembly concrete shear wall |
| CN110777971B (en) * | 2019-11-18 | 2021-05-14 | 中国水利水电第八工程局有限公司 | PC wallboard mounting structure and construction method thereof |
| CN113700301A (en) * | 2021-08-27 | 2021-11-26 | 山东建科特种建筑工程技术中心有限公司 | Grouting layer plugging method for assembly type component and assembly type component connection construction method |
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