CN102433945A - Vertical mixed connection structure and method of prefabricated internal wallboards for assembling shear wall structure - Google Patents

Vertical mixed connection structure and method of prefabricated internal wallboards for assembling shear wall structure Download PDF

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Publication number
CN102433945A
CN102433945A CN2011102520990A CN201110252099A CN102433945A CN 102433945 A CN102433945 A CN 102433945A CN 2011102520990 A CN2011102520990 A CN 2011102520990A CN 201110252099 A CN201110252099 A CN 201110252099A CN 102433945 A CN102433945 A CN 102433945A
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prefabricated
panel
shear
vertical
edge
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CN2011102520990A
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CN102433945B (en
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郭正兴
刘家彬
朱张峰
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东南大学
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Abstract

The invention discloses a vertical mixed connection structure and method of prefabricated internal wallboards for assembling a shear wall structure. On the structure, edge components of upper-layer and lower-layer prefabricated internal wallboard structures are overlapped through vertical steel bars and U-shaped ribs, and horizontal reinforcing ribs and local cast-in-place concrete are arranged in a closed ring so as to realize the edge components equivalent to the cast-in-place concrete, the vertically distributed steel bars at the middle part of the components are connected in a manner of indirect overlapping by use of mortar anchor steel bars of a retention metal mortar anchor pipe so as to form an entire shear wall. By utilizing the local cast-in-place concrete moist joint at the edge component part formed by the mixed connection and the dry joint of bedding and grouting at the part of the vertically distributed steel bars, the shear strength and rigidity of the horizontal jointing part of the prefabricated internal wallboards are improved; casting holes reserved at the bottom of the edge components can be used for solving the problem of casting the local cast-in-place concrete; and the vertically distributed steel bars are connected in a manner of indirect overlapping by use of the mortar anchor, which facilitates the installation and temporary fixation of the wallboards on a concrete floor. The mixed connection structure of the prefabricated internal wallboards, provided by the invention, ensures the overall performance of the shear wall; and construction is convenient.

Description

The prefabricated inner wall panel of assembling shear wall structure vertically mixes syndeton and method
Technical field
The present invention relates to the vertical mixing link technique of the prefabricated inner wall panel on-site consolidation of a kind of house assembling shear wall structure, belong to construction work assembling concrete structure technical field.
Background technology
The shear wall member is the main bearing member of high-story house shear wall structure, also is its primary energy dissipation member.The overall performance of assembly concrete shear wall structure and anti-seismic performance depend on intensity, rigidity and the ductility of assembling shear wall member.The layering of assembling shear wall wall body construction vertical joint construction and performance prefabricated, that be positioned at horizontal edge joint position have directly determined shear wall member and integrally-built globality, supporting capacity and deformability.
For the vertical connection of assembling shear wall structure inner wall panel, known link technique is mainly sat slurry and is utilized multiple connecting method for reinforcing bars to realize the stressed continuity of vertical reinforcement within the walls through mortar at horizontal edge joint position.Or through steel bushing slurry anchor reinforcing bar butt joint connection; Employing is should the technology reinforcing steel bar bear continuous; But the steel bushing consumption is big, and the sleeve unit price is higher, and it is high that prefabricated units expose connected reinforcement location required precision; The steel bushing pair cross-section 200mm left and right sides walls concrete of enlarged diameter weakens more, is not suitable for the shear wall member that breadth of section is less, reinforcing bar is closeer; Or overlap connection indirectly through slurry anchor reinforcing bar, and the stress performance of this type of attachment is restricted by reserving hole forming technique, grouting process, and discreteness is bigger; Or be welded to connect through upper and lower bar splicing, but existing welding quantity more, the field Welding amount is too big, quality is difficult for problems such as assurance.Simultaneously, the horizontal piece of prefabricated inner wall panel member of above-mentioned link technique belongs to the stem grafting seam, is prone at the horizontal joint place form plane of weakness, and causes the interruption of this section parts shear wall structure edge member, thereby influence the stress performance of whole body of wall.
Owing to there is above-mentioned various problems; Problems such as the overall performance of the prefabricated inner wall panel of assembling shear wall structure, stress performance stability and construction convenience are not well solved; The use that this has also limited the prefabricated inner wall panel of assembling shear wall structure, also influence prefabricated assembly structural prefabricated assembly rate raising and apply.
Summary of the invention
Technical problem: for solving the problem that overall performance, stress performance stability and construction convenience etc. that the prefabricated inner wall panel of current assembling shear wall structure vertically connects existence exist, the present invention provides a kind of vertical mixing syndeton and method that is applicable to the prefabricated inner wall panel of assembling shear wall structure; This structure combines the different connection performance requirements of shear wall different parts, adopts two kinds of different connecting method for reinforcing bars and horizontal piece bonding surface processing method to mix syndeton and handles.Structure edge member or constrained edge member (hereinafter to be referred as edge member) to the shear wall dual-side adopt and the essentially identical connected mode of cast-in-place structural, solve the connection reliability of important edge member; For vertical distribution reinforcement position, the middle part of shear wall, adopt vertical reinforcement slurry anchor easy to connect to overlap the method for connection and horizontal joint seat slurry stem grafting seam indirectly, solve the convenience of constructing.The vertical mixing syndeton of the prefabricated inner wall panel of assembling shear wall structure has been taken into account the globality of assembling shear wall and the convenience of construction, reduces the influence degree of construction factor to stress performance, has improved the structure stability.
Technical scheme:The prefabricated inner wall panel of assembling shear wall structure of the present invention vertically mixes in the syndeton, vertically mixes syndeton and comprises the prefabricated inner wall panel in shear wall upper strata, the prefabricated inner wall panel of shear wall lower floor, the closed reinforcing bar of vertical U type; Horizontal distribution reinforcing bar, edge joint position are sat the slurry layer, vertically starch the anchor reinforcing bar, wavy metal slurry anchor tube; The grouting material, the grouting mouth is reserved pouring hole; Cast-in-situ concrete, horizontal stiffener, stirrup;
Left and right two inferior horn indentation, there of the edge member of the prefabricated inner wall panel in shear wall upper strata and shear wall lower floor prefabricated inner wall panel both sides correspondence position are provided with the closed reinforcing bar of vertical U type; Horizontal stiffener stretches into the staggered overlap joint of the closed reinforcing bar of upper and lower vertical U-shaped and forms in the closed circle; Stirrup is encrypted the outside that is arranged on the staggered overlap joint of the closed reinforcing bar of upper and lower vertical U-shaped, above the closed reinforcing bar of vertical U type of prefabricated inner wall panel side, shear wall upper strata, is provided with the reservation pouring hole; The vertical distribution reinforcement zone at prefabricated inner wall panel middle part, shear wall upper strata and the corresponding one by one indwelling in the vertical reinforcement position wavy metal slurry anchor tube of design; This wavy metal slurry anchor tube be arranged in the prefabricated inner wall panel in shear wall upper strata and with the external communications of bottom, the top of this wavy metal slurry anchor tube is communicated with the grouting mouth; The vertical distribution reinforcement at shear wall lower floor prefabricated inner wall panel middle part stretches out member end face certain-length, inserts in the metal slurry anchor tube of the prefabricated inner wall panel correspondence position in upper strata.
The prefabricated inner wall panel in shear wall upper strata is when shear wall lower floor prefabricated inner wall panel is connected; Wallboard middle part vertical distribution reinforcement slurry anchor is filled with edge joint position seat slurry layer around overlapping the join domain concrete surface indirectly; The vertical slurry anchor reinforcing bar of the prefabricated interior wall of lower floor inserts in the wavy metal slurry anchor tube of the prefabricated interior wall in upper strata; The grouting material pours into wavy metal slurry anchor tube through the grouting mouth, and forming up and down, the indirect overlap joint slurry anchor of prefabricated inner wall panel distribution vertical reinforcement connects; The closed reinforcing bar interdigitation of vertical U type of closed reinforcing bar of the vertical U type on the lower floor prefabricated inner wall panel top at shear wall slab edge member position and prefabricated inner wall panel bottom, upper strata, mutual overlap joint; Horizontal stiffener inserts in the closure circle of the closed reinforcing bar formation of vertical up and down U type, and the gap portions of the prefabricated inner wall panel edge member of upper and lower layer pours into cast-in-situ concrete through reserving pouring hole.
The method of attachment that the prefabricated inner wall panel of assembling shear wall structure vertically mixes syndeton is: the prefabricated inner wall panel in same position shear wall upper strata has adopted two kinds of different vertical reinforcement methods of attachment with the edge member position that is positioned at both sides of the prefabricated inner wall panel of lower floor with the distribution vertical reinforcement position that is positioned at the middle part, forms the mixing syndeton that vertical reinforcement connects; Promptly at the edge member position of shear wall both sides; The closed muscle of the vertical U type that lower floor stretches out on prefabricated inner wall panel top inserts prefabricated inner wall panel down gap position, upper strata; Forming staggered overlap joint with the vertical U-shaped reinforcing bar of the prefabricated interior wall in upper strata is connected; The staggered overlap joint of the vertical U-shaped muscle of colligation forms horizontal stiffener and periphery stirrup in the closed circle, connects through reserving the pouring hole concreting, form the concrete binding bar splicing that is equal to cast-in-situ concrete shear wall edge member; At vertical distribution reinforcement position, shear wall middle part; The vertical slurry anchor reinforcing bar that lower floor stretches out on prefabricated inner wall panel top insert prefabricated inner wall panel bottom, upper strata wavy metal slurry anchor tube, pour into the grouting material from the grouting mouth, the grouting slurry anchor that forms vertical distribution reinforcement overlaps connection indirectly.
The member matching surface at the edge member position that is positioned at both sides of prefabricated inner wall panel in same position shear wall upper strata and the prefabricated inner wall panel of lower floor and the distribution vertical reinforcement position that is positioned at the middle part has adopted two kinds of different horizontal piece face processing methods, forms the mixing syndeton of horizontal piece; The vertical U-shaped bar splicing of the gap portions join domain that is the prefabricated inner wall panel edge member of upper and lower layer pours into cast-in-situ concrete through reserving pouring hole, and the member matching surface that forms the wet seam that is equal to cast-in-situ concrete shear wall edge member connects; Horizontal edge joint position at distribution reinforcement position, shear wall middle part is provided with sits the slurry layer, pours into the grouting material through the grouting mouth pressure, and horizontal edge joint position is filled the grouting material, forms the member matching surface syndeton of the stem grafting seam in distribution reinforcement zone, shear wall middle part.
Beneficial effect:(1) upper and lower story shear panel edges member of the present invention realizes that through the closed cross dystopia of muscle and tendon of U type position make-up, the local cast-in-situ concrete of horizontal stiffener of colligation and bonding pad vertical connection is equal to the connection effect of cast-in-place shear wall same area basically; The shearing resistance, anti-bending bearing capacity and the rigidity that connect have been guaranteed; Simultaneously; Closed muscle of U type and stirrup provide multidirectional effect of contraction to local cast-in-situ concrete, have further improved the ductility of edge member; (2) the vertical distribution reinforcement in shear wall slab middle part of the present invention overlaps method of attachment indirectly through the slurry anchor; Both made things convenient for installation in position and the anchoring temporarily of upper strata shear wall slab after watering build floor; Reduced on-the-spot slurry anchor reinforcing bar and the grouting amount of sitting slurry simultaneously, reduced the influence of construction factor switching performance; (3) the horizontal piece of inner wall panel edge member of the present invention adopts the wet connection that is equal to cast-in-place shear wall, and the horizontal joint at the vertical distribution reinforcement in middle part place adopts involvement to connect, and has taken into account globality and construction convenience that the horizontal piece of different parts connects; (4) pouring hole reserved of member position is simple for production on the edge of in the present invention, has guaranteed the pouring quality of the local cast-in-situ concrete of edge member; (5) the wavy metal slurry anchor tube of vertical distribution reinforcement slurry anchor of the present invention connection adopts directly pre-buried mode; Properly settle the hole forming technique and guaranteed grouting quality; Simultaneously; Select high strength for use, do not have the grouting material of contraction, good fluidity, and adopt pressure grouting technology, improved the vertical distribution reinforcement of wallboard and starched the reliability that anchor overlaps connection indirectly.
Description of drawings
Below in conjunction with accompanying drawing and embodiment to further explain of the present invention:
The schematic three dimensional views that Fig. 1 is the prefabricated inner wall panel 1 in shear wall of the present invention upper strata when shear wall lower floor prefabricated inner wall panel 2 is not connected,
The schematic three dimensional views that Fig. 2 is the prefabricated inner wall panel 1 in shear wall of the present invention upper strata when shear wall lower floor prefabricated inner wall panel 2 is connected,
Fig. 3 is a 1-1 sectional drawing among Fig. 2.
Have among the figure: the prefabricated inner wall panel 1 in shear wall upper strata, the prefabricated inner wall panel 2 of shear wall lower floor, the closed reinforcing bar 3 of vertical U type, horizontal distribution reinforcing bar 4; Edge joint position is sat slurry layer 5, vertically starches anchor reinforcing bar 6, wavy metal slurry anchor tube 7; Grouting material 8, grouting mouth 9 is reserved pouring hole 10; Cast-in-situ concrete 11, horizontal stiffener 12, stirrup 13.
The specific embodiment
The prefabricated inner wall panel of assembling shear wall structure of the present invention vertically mixes syndeton and comprises the prefabricated inner wall panel in shear wall upper strata, the prefabricated inner wall panel of shear wall lower floor, the closed reinforcing bar of vertical U type, horizontal distribution reinforcing bar; Edge joint position is sat the slurry layer, vertically starches the anchor reinforcing bar, wavy metal slurry anchor tube; The grouting material, the grouting mouth is reserved pouring hole; Cast-in-situ concrete, horizontal stiffener, stirrup; Divide the left and right two inferior horn indentation, there exposed sections, member position, both sides of the edge of the prefabricated prefabricated inner wall panel in shear wall upper strata of floor not have the closed reinforcing bar of concrete vertical U type; The staggered upper strata body of wall that inserts of the closed reinforcing bar of vertical U-shaped that the both sides of the edge member of the prefabricated inner wall panel same area of lower floor exposes the member top does not have the closed reinforcing bar of concrete vertical U-shaped zone with the position; In the closure circle that the upper and lower U-shaped reinforcing bar of staggered overlap joint forms horizontal stiffener is set; Periphery is provided with the encryption stirrup by the edge member designing requirement; The concrete of building the vertical up and down U-shaped bar splicing join domain of mouthful cast in situs edge member through the reservation edge member of prefabricated inner wall panel up and down connects into integral body, and forms the wet seam of the interior wall edge member that is equal to cast-in-situ concrete basically.For the distribution vertical reinforcement zone of the prefabricated inner wall panel of shear wall middle part, lower floor's prefabricated inner wall panel middle part vertical reinforcement stretches out certain-length, as vertical slurry anchor connecting reinforcement; The prefabricated inner wall panel in upper strata is inherent to stretch out vertical reinforcement same area indwelling metal slurry anchor tube with lower floor; When the prefabricated inner wall panel of prefabricated inner wall panel in shear wall upper strata and shear wall lower floor coincide; Wallboard middle part vertical distribution reinforcement slurry anchor is filled with mortar seat slurry layer around overlapping the join domain concrete surface indirectly; The reservation metal slurry anchor tube of prefabricated inner wall panel bottom, upper strata entangles the vertical reinforcement that the prefabricated inner wall panel of lower floor stretches out; Pour into the grouting material from the grouting mouth, the slurry anchor reinforcing bar that forms the vertical reinforcement in the vertical distribution reinforcement of the shear wall zone overlaps connection indirectly, and the horizontal matching surface of interior wall is filled the grouting material up and down becomes the stem grafting seam different with the cast-in-situ concrete constuction joint.
Assembling shear wall structure inner wall panel of the present invention vertically mixes the concrete method of attachment of joint construction: the layering of shear wall inner wall panel is prefabricated; Vertical reinforcement adopts the staggered overlap joint of the closed muscle of upper and lower U type to connect in the certain altitude scope of bottom, prefabricated inner wall panel edge member position; The closed muscle of the U-shaped of edge member bottom overlaps join domain and tamps through reservation pouring hole, the local cast-in-situ concrete in job site, forms the wet connection of the horizontal piece that is similar to the cast-in-situ concrete shear wall; The vertical distribution reinforcement of inner wall panel prefabricated units is employed in to be reserved wavy metal slurry anchor tube, slurry anchor in the body of wall and overlaps connections, piece face indirectly and sit slurry and form involvement and connect, and mixes and connects the globality that has increased the vertical connection of assembling shear wall structure inner wall panel.
Among the figure; The accurate contraposition of slinging of the prefabricated inner wall panel 1 in shear wall upper strata of will have wavy metal slurry anchor tube 7, reserving the closed muscle 3 of the vertical U type of pouring hole 10 and structure edge member bottom is installed; Being held on the prefabricated inner wall panel 2 of shear wall lower floor sits on the slurry layer 5 with the mortar that floorslab concrete is built the vertical distribution reinforcement join domain of back formation; Simultaneously, guarantee that the slurry anchor reinforcing bar 6 that the prefabricated inner wall panel 2 of shear wall lower floor stretches out floor face accurately inserts in the wavy metals slurry anchor tube 7 of the prefabricated inner wall panel in upper stratas; The horizontal stiffener 12 of the elliptical ring inner top that the closed muscle 3 of the upper and lower inner wall panel U of colligation structure edge member type forms, colligation horizontal distribution reinforcing bar 4 and stirrup 13; Adopt pressure grouting technology, the material 9 that will be in the milk is pressed in the wavy metal slurry anchor tube 7 from grouting mouth 9; At last, build the local cast-in-situ concrete 11 that the vertical U-shaped reinforcing bar of edge member does not have the concrete position, upper and lower layer pre-fabricated inner shear wall slab is connected, form whole shear wall through reserving pouring hole 10.

Claims (4)

1. a prefabricated inner wall panel that assembles shear wall structure vertically mixes syndeton, it is characterized in that this vertical syndeton of mixing comprises the prefabricated inner wall panel in shear wall upper strata (1), the prefabricated inner wall panel of shear wall lower floor (2); The closed reinforcing bar (3) of vertical U type, horizontal distribution reinforcing bar (4), edge joint position is sat slurry layer (5); Vertical slurry anchor reinforcing bar (6), wavy metal slurry anchor tube (7), grouting material (8); Grouting mouthful (9) is reserved pouring hole (10), cast-in-situ concrete (11); Horizontal stiffener (12), stirrup (13);
Left and right two inferior horn indentation, there of the edge member of the prefabricated inner wall panel in shear wall upper strata (1) and the prefabricated inner wall panel of shear wall lower floor (2) both sides correspondence position are provided with the closed reinforcing bar (3) of vertical U type; Horizontal stiffener (4) stretches into the staggered overlap joint of the upper and lower closed reinforcing bar of vertical U-shaped (3) and forms in the closed circle; Stirrup (13) is encrypted the outside that is arranged on the staggered overlap joint of the upper and lower closed reinforcing bar of vertical U-shaped (3), and the closed reinforcing bar of vertical U type (3) top of prefabricated inner wall panel (1) side is provided with and reserves pouring hole (10) on the shear wall upper strata; The vertical distribution reinforcement zone at the prefabricated inner wall panel in shear wall upper strata (1) middle part and the corresponding one by one indwelling in the vertical reinforcement position wavy metal slurry anchor tube (7) of design; This wavy metal slurry anchor tube (7) be arranged in the prefabricated inner wall panel in shear wall upper strata (1) and with the external communications of bottom, the top of this wavy metal slurry anchor tube (7) is communicated with grouting mouth (9); The vertical distribution reinforcement (6) at the prefabricated inner wall panel of shear wall lower floor (2) middle part stretches out member end face certain-length, inserts in the metal slurry anchor tube (7) of the prefabricated inner wall panel in upper strata (1) correspondence position.
2. the prefabricated inner wall panel of assembling shear wall structure according to claim 1 vertically mixes syndeton; It is characterized in that: the prefabricated inner wall panel in shear wall upper strata (1) and the prefabricated inner wall panel of shear wall lower floor (2) are when being connected; Wallboard middle part vertical distribution reinforcement slurry anchor is filled with edge joint position seat slurry layer (5) around overlapping the join domain concrete surface indirectly; The vertical slurry anchor reinforcing bar (6) of the prefabricated interior wall of lower floor inserts in the wavy metal slurry anchor tube (7) of the prefabricated interior wall in upper strata; Grouting material (8) pours into wavy metal slurry anchor tube (7) through grouting mouthful (9), and forming up and down, the indirect overlap joint slurry anchor of prefabricated inner wall panel distribution vertical reinforcement connects; The closed reinforcing bar of vertical U type (3) on the prefabricated inner wall panel of lower floor (2) top at shear wall slab edge member position and closed reinforcing bar (3) interdigitation of the vertical U type of the prefabricated inner wall panel in upper strata (1) bottom, mutual overlap joint; Horizontal stiffener (12) inserts in the closure circle that the vertical closed reinforcing bar of U type (3) forms up and down, and the gap portions of the prefabricated inner wall panel edge member of upper and lower layer pours into cast-in-situ concrete (11) through reserving pouring hole (10).
3. the prefabricated inner wall panel of an assembling shear wall structure as claimed in claim 1 vertically mixes the method for attachment of syndeton; It is characterized in that: the prefabricated inner wall panel in same position shear wall upper strata (1) has adopted two kinds of different vertical reinforcement methods of attachment with the edge member position that is positioned at both sides of the prefabricated inner wall panel of lower floor (2) with the distribution vertical reinforcement position that is positioned at the middle part, forms the mixing syndeton that vertical reinforcement connects; Promptly at the edge member position of shear wall both sides; The closed muscle of vertical U type (3) that stretch out on the prefabricated inner wall panel of lower floor (2) top inserts the prefabricated inner wall panel in upper strata (1) down gap position; Forming staggered overlap joint with the vertical U-shaped reinforcing bar (3) of the prefabricated interior wall in upper strata (1) is connected; The staggered overlap joint of the vertical U-shaped muscle of colligation (3) forms horizontal stiffener (12) and periphery stirrup (13) in the closed circle; Connect through reserving pouring hole (10) concreting (11), form the concrete binding bar splicing that is equal to cast-in-situ concrete shear wall edge member; At vertical distribution reinforcement position, shear wall middle part; The vertical slurry anchor reinforcing bar (6) that stretches out on the prefabricated inner wall panel of lower floor (2) top insert the prefabricated inner wall panel in upper strata (1) bottom wavy metal slurry anchor tube (7), pour into grouting material (8) from grouting mouthful (9), the grouting slurry anchor that forms vertical distribution reinforcement overlaps connection indirectly.
4. the prefabricated inner wall panel of assembling shear wall structure according to claim 3 vertically mixes the method for attachment of syndeton; It is characterized in that: the prefabricated inner wall panel in same position shear wall upper strata (1) has adopted two kinds of different horizontal piece face processing methods with the edge member position that is positioned at both sides of the prefabricated inner wall panel of lower floor (2) and the member matching surface at the distribution vertical reinforcement position that is positioned at the middle part, forms the mixing syndeton of horizontal piece; The vertical U-shaped bar splicing of the gap portions join domain that is the prefabricated inner wall panel edge member of upper and lower layer pours into cast-in-situ concrete (11) through reserving pouring hole (10), and the member matching surface that forms the wet seam that is equal to cast-in-situ concrete shear wall edge member connects; Horizontal edge joint position at distribution reinforcement position, shear wall middle part is provided with sits slurry layer (5); Pour into grouting material (8) through grouting mouthful (9) pressure; Horizontal edge joint position is filled grouting material (8), forms the member matching surface syndeton of the stem grafting seam in distribution reinforcement zone, shear wall middle part.
CN 201110252099 2011-08-30 2011-08-30 Vertical mixed connection structure and method of prefabricated internal wallboards for assembling shear wall structure CN102433945B (en)

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