CN206769153U - Assemble cast-in-place combined type superposed box mesh-beam floor system attachment structure - Google Patents

Abstract

A kind of cast-in-place combined type superposed box mesh-beam floor system attachment structure of assembling is the utility model is related to, the structure includes superposed box, tightening latch, straight screw sleeve, pull bar, rib post, principal rod, shearing tooth, girt strip, girt strip prefabricated panel, binding prestress reinforcement, hangs muscle, the prefabricated top sealing plate of girt strip, grout hole, girt strip prefabricated board cage bar, occlusal crib etc..The cast-in-place combined type superposed box mesh-beam floor system attachment structure of assembling that the utility model is related to, girt strip sets the prefabricated panel and top sealing plate through multiple casings, binding prestress reinforcement is set inside girt strip, ensure girt strip bulk strength, whole work progress is simple to operate, consequently facilitating construction and management, have preferable economic technology benefit.

Description

Assembled cast-in-place combined composite box-net-beam-floor connection structure

technical field

The utility model relates to a combined type superimposed box net beam floor connection structure, in particular to an assembled cast-in-place combined superimposed box net beam floor connection structure, which belongs to the field of house construction.

Background technique

As people's demand for large space increases, the mesh girder floor structure can achieve large span and large space, the height of the beam and slab is the same, and the non-prestressed form can reach a span of 33m, and the construction supporting formwork is flat and simple, saving, and the box body The split is light in weight, easy to transport and combined installation, and the simple construction technology is beneficial to shorten the construction period. Because of its light weight, high bearing capacity, and a larger structural height can be selected to form a beam-slab composite section, the seismic force generated by light weight is small , so its anti-seismic performance is good, the overall rigidity is very large, the deflection deformation and corner deformation are small, and the torsion effect on the floor edge beam is much smaller than that of ordinary floors. Nowadays, shopping malls, libraries, underground garages, teaching buildings, office buildings , sports training halls, etc. There are more and more buildings with large spans and large spaces. The traditional cast-in-place reinforced concrete floor slabs can no longer meet the requirements. The matching formwork is flat, simple, economical, the box body is light in weight, easy to transport and assemble, and the construction process is simple.

However, the traditional construction method of the connection between the rib beam and the laminated box is not strong, and the construction is complicated, which may easily lead to leakage at the seam. At the same time, when the rib beam is poured, the side wall of the laminated box will be deformed and destroyed, resulting in waste of materials and labor.

In view of this, in order to overcome the defects existing in the prior art, a simple and effective assembly-in-place combined composite box-net beam floor connection structure is urgently needed to improve the construction of the assembly-in-place combined composite box-net beam floor. Quality and construction efficiency.

Utility model content

The purpose of this utility model is to improve the technical problems of the traditional assembled cast-in-place combined composite box-mesh girder floor construction method, the rib beam strength cannot meet the design requirements, etc., and improve the construction quality of the assembled cast-in-place combined composite box-mesh girder floor and construction efficiency.

In order to achieve the above object, the utility model adopts the following technical solutions:

Assembling the cast-in-place combined composite box-mesh girder floor connection structure, the structure mainly includes laminated boxes, rib beams, tie rods, bolts, shear grooves, rib beam prefabricated bottom plates, rib beam prefabricated top seal plates, bonding Prestressed tendons, rib columns, hanging ribs, occlusal grooves, etc.; the lower part of the rib beam is provided with a rib beam prefabricated bottom plate, the upper part is provided with a rib beam prefabricated roof seal plate, and the interior is provided with bonded prestressed tendons, and the rib beam prefabricated bottom plate Hanging ribs are provided, and grouting holes are provided on the rib beam prefabricated top sealing plate.

The prefabricated bottom plate of the rib beam and the prefabricated top seal plate of the rib beam are provided with occlusal grooves on the outer side of the prefabricated roof seal plate to occlude and connect with the shear teeth of the laminated box. Place it on the stress rib at the bottom of the laminated box, and place the long hanging rib on the stress rib at the top of the laminated box.

There is a bonded prestressed tendon inside the rib beam.

The rib beam prefabricated bottom plate and rib beam prefabricated top seal plate can connect two or three vertical and horizontal laminated boxes into a whole. After pouring.

The utility model has the following characteristics and beneficial effects:

(1) The laminated box and the rib beam are connected by the hanging bars of the rib beam prefabricated floor, and the rib beam is provided with a rib beam prefabricated roof to ensure the strength and stability of the rib beam.

(2) Bonded prestressed tendons are set inside the rib beam to ensure that there is prestressing effect inside the rib beam, which can be stressed at the same time as the laminated box.

(3) Multiple boxes and one panel are used to set the rib beam prefabricated bottom plate and prefabricated top sealing plate to ensure the stability of the criss-cross rib beams.

Description of drawings

Fig. 1 is a schematic diagram of the connection structure of the assembled cast-in-place combined type laminated box net beam floor of the utility model;

Fig. 2 is a schematic diagram of the rib beam prefabricated roof connection structure;

Among them: 1. Laminated box 2. Top plate 3. Bottom plate 4. Side plate 5. Bolt rod 6. Straight thread sleeve 7. Pull rod 8. Rib column 9. Shear groove 10. Stress rib 11. Shear tooth 12 .Bottom groove 14. Rib beam 15. Rib beam prefabricated bottom plate 16. Adhesive prestressed tendon 17. Hanging rib 18. Rib beam prefabricated top seal plate 19. Grouting hole 20. Rib beam prefabricated slab main reinforcement 21. Occlusion groove 22. Horizontal plate 23. Vertical plate.

detailed description

Formwork support technical requirements, concrete pouring construction technical requirements, steel bar binding technical requirements, etc., this utility model will not repeat, and focus on the implementation of the utility model related to the structure.

Fig. 1 is a schematic diagram of the connection structure of the assembled cast-in-place combined composite box-mesh girder floor of the utility model, the assembled cast-in-place combined composite box-net beam floor, the thickness of the bottom plate of the laminated box is 80mm, and the thickness of the roof of the exposed box is 120mm, the side wall of the laminated box is thin-walled, the thickness is 10mm, and the height of the laminated box is 450mm. The width of the rib beam is 100mm, the tie rod is an iron rod with a tapered bottom, the diameter of the tapered bottom is 50mm, the diameter of the rod is 10mm, the diameter of the bolt rod is 5mm and the nut with an inner diameter of 6mm, the depth of the shear groove is 30mm, the width of the square is 55mm, and the thickness of the prefabricated bottom plate of the rib beam 10mm, rib beam prefabricated top seal plate thickness 10mm, the length is the width of three laminated boxes, the diameter of the bonded prestressed tendon is 18mm, the rib column is a wooden square rod, the side width is 50mm, and the upper part is arranged with a 12mm diameter straight thread sleeve, The diameter of the hanging bar is 18mm; the depth of the exposed bar shear groove is 20mm, and the side width is 50mm. The bottom plate is equipped with a bottom plate groove of 30mm and a square width of 50mm.

The prefabricated bottom plate of the rib beam and the prefabricated top seal plate of the rib beam are provided with occlusal grooves on the outside to occlude with the shear teeth of the laminated box. The bottom plate is equipped with hanging bars with a diameter of 18mm. The length of the hanging bar is 600mm, the short hanging bar is placed on the stressed bar at the bottom of the laminated box, and the diameter of the stressed bar is 28mm, and the long hanging bar is placed on the stressed bar at the top of the laminated box.

Figure 2 is a schematic diagram of the connection structure of the prefabricated ribbed roof. The prefabricated bottom plate of the ribbed beam and the prefabricated roofing plate of the ribbed beam shown in Figure 2 connect the vertical and horizontal three laminated boxes into a whole. The prefabricated bottom plate of the ribbed beam and the prefabricated roofing plate of the ribbed The steel bars at the junction of the longitudinal slab and the transverse slab are exposed, and post-casting during construction.

Claims (4)

1. the cast-in-place combined type superposed box mesh-beam floor system attachment structure of assembling, it is characterised in that including superposed box (1), girt strip (14), Pull bar (7), tightening latch (5), shearing groove (9), girt strip prefabricated panel (15), the prefabricated top sealing plate of girt strip (18), binding prestress reinforcement (16), rib post (8), hangs muscle (17) and occlusal crib (21)；Girt strip (14) bottom is provided with girt strip prefabricated panel (15), and top is set There is the prefabricated top sealing plate of girt strip (18), inside is provided with binding prestress reinforcement (16), and girt strip prefabricated panel (15) is provided with hangs muscle (17), The prefabricated top sealing plate of girt strip (18) is provided with grout hole (19).

2. the cast-in-place combined type superposed box mesh-beam floor system attachment structure of assembling according to claim 1, it is characterised in that girt strip Occlusal crib (21) is provided with the outside of prefabricated panel (15) and the prefabricated top sealing plate of girt strip (18) to be connected with superposed box shearing tooth (11), Bottom plate is provided with hangs muscle (17), and hangs muscle (17) is 2 drop shot muscle, a long hangs muscle, and drop shot muscle is placed in superposed box (1) bottom stress On muscle (10), long hangs muscle is placed at the top of superposed box (1) on principal rod (10).

3. the cast-in-place combined type superposed box mesh-beam floor system attachment structure of assembling according to claim 1, it is characterised in that girt strip (14) it is internal to be provided with (2) road binding prestress reinforcement (16).

4. the cast-in-place combined type superposed box mesh-beam floor system attachment structure of assembling according to claim 1, it is characterised in that girt strip Prefabricated panel (15) and the prefabricated top sealing plate of girt strip (18) vertically and horizontally 2 or 3 superposed boxes (1) will be connected as entirety, and girt strip is prefabricated Bottom plate (15), the prefabricated top sealing plate of girt strip (18) stringer board (23) and transverse slat (22) intersection reinforcing steel bars exposed, during construction after pour.