CN-224228010-U - Reinforcing structure for different joints of prefabricated composite floor slab

Abstract

The utility model discloses a reinforcement structure for different joints of a prefabricated composite floor slab, which belongs to the technical field of prefabricated building and comprises a prefabricated composite floor layer, a cast-in-situ concrete layer, composite slab reinforcing steel bars, a top plate bottom film, a top plate main and secondary keel, a steel sleeve, an upper end pull rod, a lower cross beam component, a fastening nut and an upper cross beam component. According to the utility model, through the design of the reinforcement device at the joint of the prefabricated laminated plate layer and the change of the using process thereof, the quality defects of slurry leakage, honeycomb, rib exposure, staggering and the like caused by the traditional process are avoided, and meanwhile, the material is saved and the cost is reduced.

Inventors

• ZHU LIJUN
• LI HAITAO
• YANG CHUNLIANG
• ZHANG QIONG
• ZHAO GUANGFEI
• LI HOUQIANG
• MA BUQING
• WANG LIJUN
• Liang Jiangjiang
• ZHAO TIANQING

Assignees

• 山西五建集团有限公司

Dates

Publication Date

20260512

Application Date

20250603

Claims (6)

1. 1. The reinforcement structure for the different joints of the prefabricated composite floor slab is characterized by comprising a prefabricated composite floor layer (1), a cast-in-situ concrete layer (2), composite slab steel bars (3), a top plate bottom film (4), a top plate main keel (5) and a reinforcement device; The prefabricated laminated slab layer (1) is arranged below the cast-in-situ concrete layer (2), the laminated slab steel bars (3) are arranged in the prefabricated laminated slab layer (1), the top plate bottom film (4) is arranged below the prefabricated laminated slab layer (1), and the top plate main keel (5) is arranged below the top plate bottom film (4); The reinforcing device comprises a steel sleeve (6), a lower cross beam member (9), a fastening nut (10) and an upper cross beam member (11), wherein an upper end pull rod (7) is arranged on one side of the steel sleeve (6), a lower end pull rod (8) is arranged on the other side of the steel sleeve (6), the upper end pull rod (7) is fixedly connected with the upper cross beam member (11), the lower end pull rod (8) penetrates through the lower cross beam member (9) and then is in threaded connection with the fastening nut (10), the steel sleeve (6), the upper end pull rod (7) and the lower end pull rod (8) are integrally arranged through a prefabricated laminated plate layer (1), the lower cross beam member (9) is abutted to the bottom of a top plate main secondary keel (5), and the upper cross beam member (11) is abutted to the top of the prefabricated laminated plate layer (1).
2. 2. The reinforcement structure for different joints of prefabricated composite floor slab according to claim 1, wherein the upper cross beam member (11) and the upper end pull rod (7) form an L shape.
3. 3. The reinforcement structure for different joints of prefabricated composite floor slab according to claim 1, wherein the upper cross beam member (11) and the upper end pull rod (7) form a T shape.
4. 4. The reinforcement structure for different joints of the prefabricated composite floor slab according to claim 2 or 3, wherein the upper end pull rod (7) is provided with a water stop sheet (12), and the water stop sheet (12) is fixedly arranged on the upper end pull rod (7).
5. 5. A prefabricated composite floor slab reinforcing structure at different joints according to claim 2 or 3, characterized in that the lower end pull rod (8) is provided with a gasket (13), and the gasket (13) is sleeved on the lower end pull rod (8) and is clamped between the lower cross beam member (9) and the fastening nut (10).
6. 6. The reinforcement structure for different joints of the prefabricated laminated floor slab according to any one of claims 1 to 3 is characterized in that a double-sided adhesive tape (14) is arranged on the prefabricated laminated floor slab (1), one end of the double-sided adhesive tape (14) is fixedly arranged on the prefabricated laminated floor slab (1), and the other end of the double-sided adhesive tape (14) is arranged above the top plate bottom film (4).

Description

Reinforcing structure for different joints of prefabricated composite floor slab Technical Field The utility model relates to the technical field of prefabricated building, in particular to a reinforcement structure for different joints of a prefabricated composite floor slab. Background The prefabricated building technology is a novel building mode which is assembled by prefabricated building components in factories and then transported to a construction site. Compared with the traditional building mode, the technology is not only a change of the building mode, but also a key path for coping with the effects of resource shortage, climate crisis, environmental pollution, progress lag and construction quality defects, and the development of the technology is to continuously remodel the building industry pattern. Prefabricated composite floor slabs (called "composite slabs" for short) are a very wide variety of horizontal load-bearing members used in modern fabricated buildings. The core idea is to disassemble the traditional cast-in-place concrete floor slab into two parts, namely a prefabricated part and a cast-in-place part, and load is jointly born through the cooperative work of the prefabricated part and the cast-in-place part. At present, in the actual construction process of the prefabricated composite floor slab, the construction quality is difficult to control because the construction procedures of the connecting joints (joints) are numerous. If the joint is deformed, the quality of concrete at the joint of the superimposed sheet and the wallboard is seriously affected, and the quality defects of slurry leakage, honeycomb, rib exposure, staggering and the like occur. Therefore, the construction method is particularly important for the construction of the joints of the prefabricated composite floor slab. Disclosure of Invention The utility model aims to solve the problems in the background art and provides a reinforcement structure for different joints of a prefabricated composite floor slab. The utility model is realized by the following technology: The utility model provides a prefabricated assembled coincide floor different seam crossing reinforcement structure, includes prefabricated coincide sheet layer, cast-in-situ concrete layer, superimposed sheet reinforcing bar, roof basement membrane, roof major and minor fossil fragments and reinforcing apparatus. The prefabricated laminated slab layer is arranged below the cast-in-situ concrete layer, the laminated slab steel bars are arranged in the prefabricated laminated slab layer, the top plate bottom film is arranged below the prefabricated laminated slab layer, and the top plate main keel and the top plate secondary keel are arranged below the top plate bottom film. The clamping device comprises a steel sleeve, a lower cross beam member, a fastening nut and an upper cross beam member, wherein an upper end pull rod is arranged on one side of the steel sleeve, a lower end pull rod is arranged on the other side of the steel sleeve, the upper end pull rod is fixedly connected with the upper cross beam member, the lower end pull rod penetrates through the lower cross beam member and is in threaded connection with the fastening nut, the steel sleeve, the upper end pull rod and the lower end pull rod are integrally arranged through a prefabricated laminated plate layer, the lower cross beam member is abutted to the bottom of a main keel of a top plate, and the upper cross beam member is abutted to the top of the prefabricated laminated plate layer. Preferably, an L-shape is formed between the upper cross beam member and the upper end pull rod. Preferably, a T shape is formed between the upper cross beam member and the upper end pull rod. Preferably, the upper end pull rod is provided with a water stop sheet, and the water stop sheet is fixedly arranged on the upper end pull rod. Preferably, a gasket is arranged on the lower-end pull rod, and the gasket is sleeved on the lower-end pull rod and is clamped between the lower cross beam member and the fastening nut. Preferably, the prefabricated laminated board layer is provided with a double-sided adhesive tape, one end of the double-sided adhesive tape is fixedly arranged on the prefabricated laminated board layer, and the other end of the double-sided adhesive tape is arranged above the top board bottom film. According to the reinforcement structure for the prefabricated laminated floor slab at different joints, through the structural design, the joints of the prefabricated laminated floor slab at different positions are reinforced by adopting the reinforcement devices with corresponding structures, and the upper cross beam component and the lower cross beam component are used for forming vertical opposite pulling stress through the upper end pull rod and the lower end pull rod in the middle, so that the two ends of the prefabricated laminated floor slab are tightly clung to the bottom die of the top plat