CN214657827U - Prefabricated superimposed sheet connected node structure - Google Patents

Abstract

The utility model discloses a prefabricated laminated slab connecting node structure, which comprises laminated slabs, a water stop structure and a connecting structure, wherein the splicing part of the two laminated slabs is a sunken area, and the water stop structure and the connecting structure are fixedly arranged in the sunken area; the water stopping structure comprises a water stopping steel plate and a rear steel plate, the water stopping steel plate is welded at the bottom of the depressed area, and the rear steel plate is welded and connected with the upper surface of the water stopping steel plate; a plurality of rows of trusses are longitudinally arranged on the upper surface of the laminated slab; the connecting mechanism comprises channel steel and a plurality of connecting steel bars, the upper surface of the rear steel plate is connected by welding the channel steel, and the connecting steel bars sequentially transversely penetrate through the truss and the channel steel and are connected by welding. The utility model discloses at least, the connected node location of solving current superimposed sheet is insecure, adjacent superimposed sheet atress is inhomogeneous, the not good problem of water-proof effects, has that the quality is controllable, accurate pre-buried, the junction atress of firm, adjacent superimposed sheet in location is even, the good advantage of water-proof effects.

Description

Prefabricated superimposed sheet connected node structure

Technical Field

The utility model relates to a building structure joint construction, concretely relates to prefabricated superimposed sheet connected node structure.

Background

With the policy dispute of supporting the assembly type building in each province and city, the assembly type building industry steps into a rapid development stage, and a good policy opportunity is provided for rapid development of enterprises in the industry. Fabricated buildings are an important step in the advancement of supply-side structural reform and new urbanization development in the country. Meanwhile, the cast-in-place building mode is changed into an assembled integral building mode which is prefabricated by a factory and assembled on site, and the cast-in-place building mode becomes the mission of modern building practitioners.

The prefabricated building means that some or all of the components are manufactured in a factory, transported to a construction site, and assembled by a reliable assembly method. The method has the characteristics of standardized design, industrial production, assembly construction, integrated decoration, informatization management, intelligent application and the like. However, in the existing assembling process of adjacent floor slabs, only the lap joint form of the reserved post-cast steel bars and the simple close splicing form between the floor slabs are adopted. The close-spliced joint form does not form reliable and firm connection, and when the stress of adjacent floor slabs is not large, large shearing force is formed, so that cracks are generated on the splicing surfaces of the floor slabs; meanwhile, the position of the splicing node is not provided with an effective anti-leakage structure, which may cause water leakage frequently. Therefore, in order to fully exert the advantages of the assembly type building, a reasonable node connection mode is selected for a structural system, and the construction method has great significance for the construction and construction of the quality and quantity guarantee of the current green building.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a prefabricated superimposed sheet connected node structure, the connected node location of solving current superimposed sheet at least is insecure, adjacent superimposed sheet atress is inhomogeneous, the not good problem of water-proof effects, has that the quality is controllable, accurate pre-buried, the location is firm, the junction atress of adjacent superimposed sheet is even, water-proof effects is good advantage.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme: a prefabricated laminated slab connection node structure comprises laminated slabs, a water stopping structure and a connection structure, wherein a concave area is formed at the splicing position of the two laminated slabs, and the water stopping structure and the connection structure are fixedly arranged in the concave area; the water stopping structure comprises a water stopping steel plate and a rear steel plate, the water stopping steel plate is welded at the bottom of the depressed area, and the rear steel plate is welded and connected with the upper surface of the water stopping steel plate; the connecting mechanism comprises channel steel and a plurality of connecting steel bars, the upper surface of the rear steel plate is connected by welding the channel steel, and the connecting steel bars are connected by welding the channel steel.

Further, a plurality of rows of trusses are longitudinally arranged on the upper surface of the laminated slab, and the connecting steel bars transversely penetrate through the trusses.

So set up, after the back pouring concrete, connecting reinforcement and truss form latticed reinforcing bar and distribute in the concrete, overall structure is more stable firm.

The composite slab is further provided with a plurality of first through holes and second through holes which are respectively arranged on two side walls of the channel steel, wherein the positions of the first through holes are higher than the positions of the second through holes, and the heights of the first through holes and the second through holes exceed the top surface of the composite slab; and the connecting steel bars penetrate through the first through holes or the second through holes and then are welded with the channel steel.

So set up, connecting reinforcement passes through-hole and joint channel-section steel, passes through welded fastening connection again after that, and is more convenient during the connection, and fixed effect is better, and the embodiment is two reinforcing bars and passes the through-hole of channel-section steel from the horizontal both sides of superimposed sheet respectively to through two reinforcing bars of welded connection and channel-section steel, further improve the steadiness of structure.

Further setting up, the thickness of the both sides wall of channel-section steel reduces along the direction that deviates from stagnant water steel sheet.

So set up, reduce the cost that link up the through-hole to it is easier when connecting reinforcement passes first through-hole and second through-hole.

Further, the laminated slab body is in a horizontal state.

So set up, the assembly of superimposed sheet is easier, and behind the pouring concrete, stagnant water structure and connection structure are more level and smooth, firm.

And further arranging, and filling joint sealing water stop glue in a gap formed by splicing the two laminated plates.

So set up, before preventing pre-buried stagnant water steel sheet, preceding casting concrete takes place the infiltration.

(III) advantageous effects

Compared with the prior art, the utility model provides a pair of prefabricated superimposed sheet connected node structure possesses following beneficial effect:

1. the prefabricated structure is prefabricated in a factory and then assembled on site, so that adverse effects on the environment are reduced, structural accessories are completely and integrally typeset and manufactured in the factory, labor is saved, and materials are saved; and the quality of the prefabricated part is controllable, the embedded part is embedded accurately in advance, the positioning is firm, the phenomena of concrete sliding, segregation, embedded part movement and the like in the cast-in-place process are effectively solved, and therefore the working efficiency is improved.

2. The prefabricated superimposed sheet is connected through burying the channel-section steel underground and connecting reinforcement and forms and be connected wholly, and is holistic stronger than conventional close structure of piecing together, through channel-section steel and connecting reinforcement combination transmission power, the balanced atress that is connected the floor, limited transmission shearing force at the exogenic action. Therefore, the prefabricated composite slab is formed into a whole member by welding steel plates and embedding lap joint steel bars in channel steel, the joints are firm, the contact surface of the floor slab is large, the transverse and oblique line shearing force of the adjacent floor slabs is effectively absorbed and reduced, and the stability of the whole structure is improved.

3. The prefabricated composite slab is provided with the water stopping structure through the splicing part, and the water stopping structure and the post-cast concrete form a whole, so that the water leakage at the joint of the prefabricated composite slab is effectively prevented, and the construction cost is reduced. Not only plays a role of blocking the close splicing surface, effectively prevents the leakage of the close splicing surface, and has remarkable waterproof effect.

4. The embedded water stop steel plate is welded with the rear steel plate, so that a better anti-seepage effect is formed; the embedded channel steel is connected with the connecting steel bar structure, so that the strength of the connecting structure is enhanced, and the joint connection is firmer and more durable.

5. According to project requirements, the water stop steel plate and the channel steel connection node are matched, a reasonable post-cast connection form of the prefabricated part is selected, requirements of different environments and processes are met, and therefore the applicability is high.

Drawings

FIG. 1 is a schematic view of a laminated slab connection node;

FIG. 2 is a partial schematic view of a joint of a laminated slab;

FIG. 3 is a top view of a laminated slab connection node;

fig. 4 is a schematic view of connection of channel steel and connecting steel bars.

Wherein: 1. a laminated slab; 2. a water stopping structure; 3. a connecting structure; 10. a recessed region; 21. a water stop steel plate; 22. a rear steel plate; 31. channel steel; 32. connecting reinforcing steel bars; 311. a first through hole; 312. a second through hole; 11. and (5) filling a gap with water stop glue.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2, 3 and 4, wherein fig. 1 is a schematic view of a joint of a laminated slab, fig. 2 is a partial schematic view of the joint of the laminated slab, fig. 3 is a top view of the joint of the laminated slab, and fig. 4 is a schematic view of a connection between a channel steel 31 and a connecting steel bar 32, a joint structure of the prefabricated laminated slab includes a laminated slab 1, a water stopping structure 2 and a connecting structure 3, a splicing position of the two laminated slabs 1 is a concave area 10, and the concave area 10 is fixedly provided with the water stopping structure 2 and the connecting structure 3; the water stopping structure 2 comprises a water stopping steel plate 21 and a rear steel plate 22, the water stopping steel plate 21 is welded at the bottom of the depressed area 10, and the rear steel plate 22 is welded and connected with the upper surface of the water stopping steel plate 21; the connecting mechanism comprises a channel steel 31 and a plurality of connecting reinforcing steel bars 32, the channel steel 31 is connected with the upper surface of the rear steel plate 22 in a welding mode, and the connecting reinforcing steel bars 32 are connected with the channel steel 31 in a welding mode.

The plate body of the laminated slab 1 is in a horizontal state, a plurality of rows of trusses are longitudinally arranged on the upper surface of the laminated slab 1, and the connecting steel bars 32 transversely penetrate through the trusses; the thickness of the two side walls of the channel steel 31 is reduced along the direction departing from the water stop steel plate 21; a plurality of first through holes 311 and second through holes 312 are respectively arranged on two side walls of the channel steel 31 11, the position of the first through hole 311 is higher than that of the second through hole 312, and the heights of the first through hole 311 and the second through hole 312 exceed the top surface of the laminated slab 1; the connecting steel bar 32 penetrates through the first through hole 311 or the second through hole 312 and then is welded with the connecting channel steel 31; the gap formed by splicing the two laminated slabs 1 is filled with the joint filling water stop glue 11, so that the water seepage of the front poured concrete is prevented before the water stop steel plates 21 are embedded.

The first embodiment is as follows: a prefabricated superimposed sheet connected node structure, prefabricated superimposed sheet 1 is at mill's manufacturing, and in the work progress, according to the drawing support point bitmap and various central lines, position line have been drawn on the floor now. And then the tower crane lifts the laminated slab 1 through the gap of the truss, the tower crane is firstly tried to lift before lifting, after the stress conditions of the rope and the lifting hook are confirmed, the tower crane continues to the upper air, and the hemp rope is preferably used as a traction rope. After being suspended above, the laminated board 1 is slowly dropped in order to align with the previously formed marks. After the laminated slabs 1 are installed, joint filling water stop glue 11 is filled in a joint gap formed by splicing the two laminated slabs 1, a sunken area 10 is formed between the two adjacent laminated slabs 1, embedded parts such as a water stop steel plate 21, a rear steel plate 22, a channel steel 31 and a connecting steel bar 32 are installed according to a reserved hole site and a designed size of a template, the water stop steel plate 21 takes the splicing gap as a central axis and extends along the length direction of the laminated slabs 1, and the water stop steel plate 21 is welded at the bottom of the sunken area 10; a rear steel plate 22 is welded above the water stop steel plate 21 to serve as a secondary waterproof structure; a channel steel 31 is welded on the rear steel plate 22, and through holes are formed in two side walls of the channel steel 31; then at least two connecting steel bars 32 respectively pass through the gaps and the through holes of the trusses from the two transverse sides of the laminated slab 1, and then are bound and formed in the channel steel 31. And finally, pouring concrete, wherein the plate surface of the laminated slab 1 is moistened necessarily before pouring, pouring is started from the middle, the laminated slab moves towards the two sides slowly and is finished at one time, and meanwhile, tools are used for tightly knocking the concrete.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A prefabricated laminated slab connection node structure is characterized by comprising laminated slabs (1), water stopping structures (2) and connection structures (3), wherein a sunken area (10) is formed at the splicing position of the two laminated slabs (1), and the water stopping structures (2) and the connection structures (3) are fixedly arranged in the sunken area (10); the water stopping structure (2) comprises a water stopping steel plate (21) and a rear steel plate (22), the water stopping steel plate (21) is welded at the bottom of the depressed area (10), and the rear steel plate (22) is welded and connected with the upper surface of the water stopping steel plate (21); connection structure (3) include channel-section steel (31) and a plurality of connecting reinforcement (32), the upper surface of channel-section steel (31) welded connection rearmounted steel sheet (22), connecting reinforcement (32) welded connection channel-section steel (31).

2. A prefabricated composite slab connection node structure according to claim 1, wherein a plurality of first through holes (311) and second through holes (312) are respectively formed in two side walls of the channel steel (31), the first through holes (311) are higher than the second through holes (312), the first through holes (311) and the second through holes (312) are higher than the top surface of the composite slab (1), and the connection steel bars (32) are welded to the channel steel (31) after passing through the first through holes (311) or the second through holes (312).

3. A prefabricated composite slab connection node construction according to claim 1, characterized in that a plurality of rows of trusses are longitudinally fixed on the composite slab (1), and the connection bars (32) transversely pass through the trusses.

4. A prefabricated composite slab connection node construction according to claim 1, wherein the thickness of both side walls of said channel steel (31) is reduced in a direction away from said water stop steel plate (21).

5. A prefabricated composite slab connection node construction according to claim 1, characterized in that the body of said composite slab (1) is in a horizontal state.

6. A prefabricated composite slab connection node construction according to claim 1, characterized in that the gap where the two composite slabs (1) are spliced is filled with caulking waterproofing glue (11).

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