Prefabricated building formwork system and wall modules

Abstract

The invention relates to an assembly type building formwork system. The assembly type building formwork system comprises horizontal prefabricated floor slabs, at least two prefabricated wall panels and composite formworks, wherein the prefabricated wall panels are erected on the prefabricated floor slabs; the prefabricated floor slabs are connected through the composite formworks, and a cavity used for pouring concrete is formed among the prefabricated wall panels, the composite formworks and the prefabricated floor slabs; each composite formwork is formed by stacking at least one ribbed steelformwork and at least one high-molecular plastic formwork, and the ribbed steel formworks are located below the high-molecular plastic formworks. The invention further relates to an assembly type building wall module. The assembly type building wall module comprises at least one assembly type building formwork system, and walls formed through cast-in-place of concrete are arranged in the cavitiesof the assembly type building formwork systems. The assembly type building formwork system has the advantages that the strength distribution and design are reasonable, the weight is low, manual operation is facilitated, batch production can be achieved, the manufacturing cost is low, installation is convenient, and grout is prevented from being permeated and leaked.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a prefabricated building formwork system and wall modules. Background technique [0002] According to the actual construction statistics of the project, the labor volume of the formwork project accounts for 30% to 40% of the total labor volume of the concrete structure project, and the cost accounts for 20 to 30% of the total cost. Therefore, the optimization of the formwork is of great significance to the cost and construction period. [0003] Among the existing prefabricated building formwork technologies, there are wood formwork, steel formwork and aluminum alloy formwork and other technologies, and the main technical idea is to follow the traditional construction method. For example, the patent CN205171992U applied by Changsha Yuanda Housing Industry Group Co., Ltd. is more representative. It discloses a formwork structure for shear wall construction of prefa...

AI Technical Summary

Problems solved by technology

[0005] 1. The full-length bolts or tie rods used pass through the wall. After the cast-in-place molding, the holes left by the bolts or tie rods need to be sealed, which will easily cause leakage and cold bridges, leaving quality problems;

[0006] 2. The problem of strength distribution is not considered. The strength and stiffness of the upper and lower parts of the formwork are equal, which does not conform to the law of lateral pressure distribution of flowing concrete. The parts with small stress are used as much as the parts with large stress. There is no make full use of materials;

[0007] 3. A single wood formwork, steel formwork or aluminum alloy formwork is mostly used. Although the wood formwork has a wide range of sources, simple assembly, and low technical requirements for construction technology, it consumes a lot of materials, wastes forest resources, has few turnover times, and is difficult to demould , the formed concrete is difficult to have a smooth plane, and the wall surface needs to be plastered twice; the steel formwork has high strength, tight joints, and is not prone to grout leakage, but the overall weight is heavy, and hoisting machinery is required for installation. The energy consumption is high, and the cost of integral steel formwork technology is relatively high; the characteristics of aluminum alloy formwork and steel formwork are similar, and the recycling rate is high, but the unit price is relatively expensive, and the wall needs to be sealed later, which is prone to water leakage;

[0008] 4. Use oblique struts to support the formwork, and the existence of oblique struts will affect the operating space, which is not conducive to the progress of other processes, does not conform to the concept of prefabricated buildings, and affects the progress of subsequent processes

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