Evacuated shuttering member

Abstract

The present invention provides an evacuated shuttering member including upper plate (1), a peripheral lateral wall (2), a bottom (3), the upper plate (1), the peripheral lateral wall (2), the bottom (3) compose the polyhedron evacuated shuttering member, which is characterized in that at least a lateral direction angle on bottom of the evacuated shuttering member is a hidden angle (4), a least a enforcing rib plate (5) is arranged in the evacuated shuttering member. Thus after the evacuated shuttering member is used for cast-in-situ building cover, the cast-in-situ bar between the evacuated shuttering member is inverse T shape, thus the mechanics capacity of the building is greatly improved, meantime, a enforcing rib plate is arranged in the evacuated shuttering member, such that the rigidity and intensity of the evacuated shuttering member are improved to avoid the dilapidation of the evacuated shuttering member, which is suitable for cast-in-situ concrete or pretension steel bar concrete building, building cover, wall body, base bottom plate and open web bridge.

Description

(1) Technical field [0001] The present invention relates to a cavity formwork member. (2) Background technology [0002] At present, the cast-in-place concrete hollow floor is a widely used floor structure. The lightweight permanent tire molds filled in it include various hollow tubes and boxes, and the boxes are hollow or solid. For example, the patent No. ZL99249798.1, which the applicant applied for on November 29, 1999, is a utility model patent named "fiber-reinforced thin-walled member for reinforced concrete filling", which discloses a thin-walled formwork member, including an upper plate, The surrounding side walls, the lower bottom, and the upper plate, the surrounding side walls and the lower bottom form a polyhedral cavity. Another example is the patent No. ZL00203695.9 applied by Liang Jun, Shijiazhuang City, Hebei Province on February 23, 2000, and the name is called "combined concrete hidden rib floor cover plate" utility model patent, which discloses a formwo...

AI Technical Summary

Problems solved by technology

However, after being applied to the hollow floor, the cast-in-place concrete ribs formed between the cavity formwork members are all rectangular cast-in-place concrete ribs, and their mechanical performance is not very reasonable, so it is often necessary to increase the cross-sectional size of the cast-in-place concrete ribs , increase the amount of steel bars and concrete, and increase the cost of the floor. At the same time, there is no reinforcement structure in the cavity formwork member, so the overall strength and rigidity of the cavity formwork member are poor, and the cavity formwork member is prone to damage. Phenomenon, after being applied to the cast-in-place concrete hollow floor, it cannot participate in the force and transmission of the hollow floor

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