Light permanent tube shell for filling concrete

Abstract

The invention discloses a light permanent tube shell for filling concrete, which comprises a light tube (1). The light tube (1) comprises an upper shell (2), a surrounding side shell (3) and a lower shell (4), wherein the upper shell (2), the surrounding side shell (3) and the lower shell (4) form a closed cavity by enclosing. The light permanent tube shell is characterized by also comprising a through hole tube (5); the through hole tube (5) is arranged in the closed cavity of the light tube (1); at least one hole (6) for pouring cast-in-situ concrete, formed by a through hole of the through hole tube (5) in the light tube (1), runs through the upper and lower shell surfaces of the light tube (1); a hanger (8) is arranged in the through hole tube (5) or at the tube end of the through hole tube (5); and at least one hole rod piece (13) is arranged in the hole (6), and the rod piece (13) is a movable detachable rod piece. The light permanent tube shell is suitable to be used in hollow floors, roofs, walls, foundation bottom plates and open web bridges of cast-in-situ reinforced concrete or pre-stressed reinforced concrete, and is particularly suitable to be used in hollow beamless floors.

Description

[0001] This application is a divisional application of an invention patent application with an application date of July 24, 2006, an application number of 2006101071796, and a title of “A Lightweight Permanent Carcass for Concrete Filling”. (1) Technical field [0002] The invention relates to a lightweight permanent carcass for concrete filling. (2) Background technology [0003] Beamless floor is currently the most widely used floor structure for cast-in-place concrete floors. It has the advantages of fast construction speed, small structural height, flexible division of indoor areas and no need for ceiling decoration. The lightweight permanent tire mold filled in it There are various hollow tubes and boxes, and the boxes are hollow or solid. For example, Liang Jun of Shijiazhuang City, Hebei Province, applied for the formwork used in the utility model patent with the patent No. ZL00203695.9 on February 23, 2000 and the name "combined concrete hidden rib floor cover plate"...

AI Technical Summary

Problems solved by technology

", the cast-in-place concrete is poured into the hole to form a cast-in-place concrete rod. This kind of tire mold component solves the problem of force transmission in the middle of large-scale components. However, the holes in this tire mold component are easily damaged during the application process. The pressure generated when pouring concrete is easy to swell the hole wall, so that the concrete enters the tire mold, which reduces the hollow ratio of the cast-in-place concrete hollow slab and affects the structural force transmission; moreover, this relatively large tire mold It is not easy to lift and install, and it is easy to be damaged during the lifting process. Therefore, it is urgently needed to develop a new type of lightweight permanent carcass for concrete filling.

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