Hollow carcass for filling cast-in-situ concrete

Abstract

A hollow carcass used for cast-in-situ concrete filling comprises the hollow carcass (1) and an arm brace (2), wherein, the hollow carcass (1) with a cavity (4) is enclosed by an outer wall (3), and the arm brace (2) is arranged on the outer wall (3) of the bottom surface of the hollow carcass (1). The hollow carcass is characterized in that: the outer wall (3) of the hollow carcass (1) is provided with a cementation belt (6) jointed with the edge of the pulp embryos (5) of the outer wall (3), a prefabricated support mold (7) is superimposed at the position of the cementation belt (6) in the cavity (4), the outer wall (3) of the upper surface of the hollow carcass (1) is provided with a reinforced stepping bar (8) or / and a cushion block (9), the cementation belt (6) is positioned on the outer wall (3) of the upper surface of the hollow carcass (1), and the arm brace (2) is a movable leg. The hollow carcass is also characterized by simple structure, high intensity, large stiffness, excellent deformation resistance and vibration resistance performance, easy manufacture, convenient construction, high speed of construction and the like, and applicable to hollow plates, floors, roofs, walls, foundation slabs and bridges of cast-in-situ reinforced concrete or prestressed reinforced concrete, especially to hollow flat slab floors.

Description

[0001] This application is a divisional application of an invention patent application with an application date of September 02, 2004, an application number of 200410155281.4, and a title of "a hollow matrix for filling cast-in-place concrete". (1) Technical field [0002] The invention relates to a hollow matrix for filling cast-in-place concrete. (2) Background technology [0003] 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 ...

AI Technical Summary

Problems solved by technology

But this kind of building components is inconvenient to manufacture during production, the production efficiency is low, it is not convenient for assembly line production, and the corresponding cost is high. On the surface, the cast-in-place concrete at the contact part cannot fully wrap the steel bars, and the pouring quality of the cast-in-place concrete hollow floor cannot be guaranteed, and the steel bars are prone to rust

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