CN-122013899-A - Superimposed sheet piece stagnant water seepage prevention structure

CN122013899ACN 122013899 ACN122013899 ACN 122013899ACN-122013899-A

Abstract

The invention discloses a water-stopping and seepage-proofing structure for a superimposed sheet splice joint, and relates to the technical field of the butt joint of the spliced sheet splice joint of an assembled building. The invention discloses a water-stopping and seepage-proofing structure for a joint of a laminated slab, which comprises a first laminated slab and a second laminated slab, wherein the inner parts of the first laminated slab and the second laminated slab are respectively preset with a hoof rib, the tops of the first laminated slab and the second laminated slab are respectively provided with a first bolt, the side walls of the first laminated slab and the second laminated slab, which face the joint, are respectively provided with a convex surface, a connecting concave plate is arranged in the joint, the connecting concave plate comprises an integrally formed upper convex bottom plate and an inner concave side plate, the tops of the two inner concave side plates are respectively provided with an integrally formed first transverse rib, and the bottoms of the connecting concave plates are respectively provided with a through groove for the hoof rib to pass through.

Inventors

GONG LIANG
ZHANG ZHI
SUN HAOYUAN
ZHANG TAIBAO
LIU KAI
CHEN JIABO
ZHANG LIANGBING

Assignees

中铁建工集团第四建设有限公司
中铁建工集团有限公司

Dates

Publication Date: 20260512
Application Date: 20260416

Claims (10)

1. The utility model provides a superimposed sheet piece stagnant water prevention of seepage structure, includes inside all to preset first superimposed sheet (1) and second superimposed sheet (11) that have all been provided with first bolt (13) in the top of having a chinese beard muscle (12), its characterized in that, first superimposed sheet (1) and second superimposed sheet (11) all set up to convex surface (14) towards the lateral wall of piece; A connecting concave plate (2) is arranged in the joint, the connecting concave plate (2) comprises an upper convex bottom plate (21) and an inner concave side plate (22) which are integrally formed, first transverse ribs (26) which are integrally formed are arranged at the tops of the two inner concave side plates (22), a through groove (24) for allowing the beard ribs (12) to pass through is formed in the bottom of the connecting concave plate (2), and the connecting concave plate (2) is fixedly connected with the first bolts (13); The anti-seepage operation and maintenance device also comprises an anchoring pre-tightening assembly, an anti-seepage operation and maintenance assembly and a sealing assembly; the two groups of seepage-proofing operation and maintenance components are respectively arranged at the joints of the first superimposed sheet (1) and the second superimposed sheet (11) and the top of the connecting concave plate (2); The sealing component is sleeved on Hu Zijin (12) and seals the through groove (24), and the anchoring pre-tightening component is fixed with the beard ribs (12) to fix the sealing component.
2. The water stop and seepage prevention structure of the joint of the laminated plates according to claim 1, wherein the end, extending to the inner side of the connecting concave plate (2), of the hoof bar (12) is provided with a connecting thread (121), when the anchoring pre-tightening assembly is tightened, the first laminated plate (1) and the second laminated plate (11) are applied with centripetal pre-tightening tension towards the middle part of the joint through the connecting thread (121), and simultaneously, under the driving of the anchoring pre-tightening assembly, the middle part area of the inner concave side plate (22) is radially and closely displaced towards the convex surface (14) of the corresponding side laminated plate, so that the middle part of the inner concave side plate (22) is attached and compressed with the convex surface (14) of the laminated plate; the top of the connecting concave plate (2) is kept in position under the limit action of the first transverse ribs (26), the top edge of the connecting concave plate (2) is displaced towards the top of the corresponding side laminated plate, and the anti-seepage operation and maintenance assembly is extruded; The upper convex bottom plate (21) is deformed along with the shrinkage of the concave side plate (22) to generate upward arch, and the joint of the upper convex bottom plate (21) connected with the concave plate (2) and the concave side plate (22) is synchronously attached to the convex surface (14) of the adjacent superimposed sheet along with displacement.
3. The water-stopping and seepage-proofing structure of the laminated slab joint according to claim 2, wherein when grouting operation is performed, the middle part of the upper convex bottom plate (21) is displaced downwards under the action of grouting pressure, and deformation generated by the downward displacement synchronously drives the bottom edge of the concave side plate (22) to displace towards the convex surface (14) of the laminated slab; the middle area of the concave side plate (22) is synchronously attached and pressed to the convex surface (14) of the superimposed sheet along with the displacement of the bottom edge, the top of the concave side plate (22) keeps the position unchanged under the limit of the first transverse rib (26), the joint of the upper convex bottom plate (21) and the concave side plate (22) is synchronously tensioned along with the displacement, and the two ends of the upper convex bottom plate (21) are pulled towards the outer side direction of the splice along with the displacement of the bottom edge of the concave side plate (22); And the concrete generates pressure to the anchoring pre-tightening assembly, and the anchoring pre-tightening assembly generates secondary pre-tightening tension to the first laminated slab (1) and the second laminated slab (11) under the action of the concrete pressure.
4. The water-stopping and seepage-proofing structure for the splice joint of the superimposed sheet according to claim 1, wherein a connecting wing plate (23) is fixedly arranged at the top of the concave side plate (22), a first insertion hole (27) which is in butt joint with the first bolt (13) is formed in the connecting wing plate (23), and the connecting wing plate (23) is fixedly connected with the first bolt (13) through a nut.
5. The laminated slab joint water stop and seepage prevention structure according to claim 4, wherein the seepage prevention operation and maintenance assembly comprises an expansion strip (7) and a seepage drainage pipe (8) arranged in the expansion strip (7), a first clamping groove (15) is formed in the top of one side, provided with a convex surface (14), of each of the first laminated slab (1) and the second laminated slab (11), the expansion strip (7) is clamped in the first clamping groove (15), and a sixth jack (71) coupled with a first bolt (13) is formed in the expansion strip (7).
6. The superimposed sheet seam water-stopping and seepage-proofing structure according to claim 1, wherein the sealing assembly comprises a fixed angle plate (5), a first sealing angle plate (51) is clamped on the fixed angle plate (5), the first sealing angle plate (51) is provided with a second sealing angle plate (52) which is integrally formed, and the second sealing angle plate (52) is matched with the through groove (24); The fixing angle plate (5), the first sealing angle plate (51) and the second sealing angle plate (52) are respectively provided with a fourth jack (53) and a fifth jack (54), the beard ribs (12) penetrate through the fifth jack (54) and are fixed with the inner concave side plate (22) through the anchoring pre-tightening assembly, the second bolts (25) penetrate through the fourth jack (53) and are fixed through nuts, and when the anchoring pre-tightening assembly is used for fixing the fixing angle plate (5), the fixing angle plate (5) is matched with the inner concave side plate (22) to squeeze the first sealing angle plate (51); When the nut and the second bolt (25) fix the fixed angle plate (5), the fixed angle plate (5) is matched with the upper convex bottom plate (21) to extrude the first sealing angle plate (51).
7. The water-stop and seepage-proofing structure for the joint of the superimposed sheet according to claim 6, wherein the anchoring pre-tightening assembly comprises two symmetrically arranged anchor heads (3) and at least three steel strands (32), two ends of each steel strand (32) are fixedly connected with the anchor heads (3) respectively, two groups of the anchor heads (3) are connected with connecting threads (121) of two groups of the hoof-shaped ribs (12) on the first superimposed sheet (1) and the second superimposed sheet (11) respectively in a threaded manner, when the two anchor heads (3) are tightened, the two anchor heads (3) rotate in opposite directions, at least three steel strands (32) are twisted with each other along with the rotation of the anchor heads (3) to form a tightening state, the steel strands (32) apply tensioning force to the anchor heads (3) through twisting and tightening, and the anchor heads (3) apply centripetal pre-tightening force towards the middle part of the joint.
8. The superimposed sheet piece stagnant water seepage prevention structure according to claim 7, characterized in that, anchor head (3) include screw sleeve (31), the end of screw sleeve (31) is provided with integrated into one piece's hexagonal screw head (311), be provided with integrated into one piece's fluke (312) on the outer wall of screw sleeve (31), the direction slope of indent curb plate (22) is kept away from to one end of fluke (312), screw sleeve (31) are provided with second draw-in groove (313) with fixed gusset (5) one end that pastes, joint has sealing ring (33) in second draw-in groove (313) screw sleeve (31) and fixed gusset (5) cooperate in the in-process of tightening of anchor head (3) to extrude sealing ring (33).
9. The water-stop and seepage-proofing structure for the joint of the superimposed sheet according to claim 6, further comprising a reinforcing component (4), wherein the reinforcing component (4) comprises a second transverse rib (41), second insertion holes (43) are formed in two ends of the second transverse rib (41), the second insertion holes (43) are coupled with the first bolts (13), a pressing column (42) is fixedly arranged at the bottom of the second transverse rib (41), and the pressing column (42) is abutted against the middle end of the upper surface of the transverse plate of the fixed angle plate (5).
10. The laminated slab joint water stop and seepage prevention structure according to claim 9, wherein a third jack (44) is arranged on the pressing column (42), longitudinal steel bars (6) are inserted into the third jack (44), and the longitudinal steel bars (6) and the pressing column (42) are fixedly connected into a whole through concrete formed by grouting.

Description

Superimposed sheet piece stagnant water seepage prevention structure Technical Field The invention belongs to the technical field of butt joint of assembled building superimposed sheets, and particularly relates to a water-stopping and seepage-proofing structure of a superimposed sheet joint. Background The post-pouring strip gap area between the superimposed sheets is used as a buffer area for structural settlement and shrinkage, the gap width is large, the stress is complex, the requirement on water and seepage prevention performance is extremely high, and the post-pouring strip gap area is a key difficulty of assembly type building construction. At present, the mainstream construction process of the post-pouring band gap region of the laminated slab is to fill and place a reinforcement cage and passive sealing, the core relies on materials such as sealant, water stop bars and the like to fill gaps, but the problems of loose fit, ageing and falling off and the like of a sealing structure are easy to occur due to the influences of dynamic deformation, grouting pressure and the like of a wide gap region, leakage risks are obviously higher than those of a conventional narrow gap region, meanwhile, the conventional sealing mode is mainly passive sealing, active pre-tightening and dynamic adaptation capability are lacking, complex stress environments of the wide gap region cannot be met, sealing reliability is insufficient, and in view of the problems, the water stop and seepage prevention structure of the spliced slab is provided. Disclosure of Invention The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a water-stop and seepage-proof structure for the joint of the superimposed sheet, which can overcome the problems or at least partially solve the problems. In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: The water-stopping and seepage-proofing structure for the joint of the laminated plates comprises a first laminated plate and a second laminated plate, wherein the inner parts of the first laminated plate and the second laminated plate are respectively preset with a hoof bar, the tops of the first laminated plate and the second laminated plate are respectively provided with a first bolt, the side walls of the first laminated plate and the second laminated plate, which face the joint, are respectively provided with convex surfaces, the joint is internally provided with a connecting concave plate, the connecting concave plate comprises an integrally formed upper convex bottom plate and an integrally formed inner concave side plate, the tops of the two inner concave side plates are respectively provided with an integrally formed first transverse bar, the bottoms of the connecting concave plates are respectively provided with a through groove used for the hoof bar to pass through, the connecting concave plate is fixedly connected with the first bolts, the water-stopping and seepage-proofing and operation and maintenance assembly and the sealing assembly are respectively arranged at the joint of the tops of the first laminated plate and the second laminated plate, the sealing assembly is sleeved on the hoof bar and seals the through grooves, and the sealing assembly is fixed when the anchoring and the hoof bar are fixed. Further, connecting threads are arranged on the end heads, extending to the inner sides of the connecting concave plates, of the beard ribs, centripetal pre-tightening pulling force towards the middle parts of the joint is applied to the first laminated plates and the second laminated plates through the connecting threads when the anchoring pre-tightening assembly is tightened, meanwhile, under the driving of the anchoring pre-tightening assembly, radial close displacement is generated in the middle area of the concave side plates towards the convex surfaces of the corresponding side laminated plates, the middle parts of the concave side plates are bonded and pressed with the convex surfaces of the laminated plates, the top parts of the connecting concave plates are kept in position under the limiting effect of the first transverse ribs, the top edges of the connecting concave plates are displaced towards the top parts of the corresponding side laminated plates, the anti-seepage operation and maintenance assembly is extruded, upward arch deformation is generated along with the shrinkage of the concave side plates, and the joint parts of the upward convex bottom plates and the concave side plates of the connecting concave plates are bonded with the convex surfaces of the adjacent laminated plates synchronously along with the displacement. Furthermore, when grouting operation is performed, the middle part of the upper convex bottom plate is displaced downwards under the action of grouting pressure, deformation generated by the downward displacement synchronously drives the bottom