Construction method of orthogonal and ortho-laid steel concrete vierendeel sandwich plate floor

Abstract

The invention provides a construction method of an orthogonal and ortho-laid steel concrete vierendeel sandwich plate floor. The construction method comprises steps as follows: construction preparation, preparation and mounting of a lower rib beam bottom formwork, lower rib and shear key steel bar binding, supporting of shear keys, lower ribs, upper ribs and part of surface sheet formworks, lower rib and shear key concrete pouring, supporting of remaining surface sheet formworks, upper rib and surface sheet steel bar binding, upper rib and surface sheet concrete pouring and formwork removal. The structural system is optimized, and fewer materials are used; the vierendeel sandwich plate floor which comprises surface sheets, the upper ribs, the shear keys and the lower ribs and is formed by hollowing out solid plate concrete without any function replaces a large-section beam, the conversion thickness of the floor is reduced, concrete is saved by 25%-30%, and steel bars are saved by 20%-25%.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a construction method, in particular to a construction method for orthogonally placing reinforced concrete hollow sandwich slab floors. Background technique [0002] With the progress and development of society, people's living standards are constantly improving, and more and higher requirements are put forward for the use functions of buildings, and it is generally felt that the smaller column grid size cannot meet various multi-functional uses. The long-span flexible space is not only favored by architects, but also by many users. At the same time, with the rapid development of China's economy and the continuous increase of population, land resources are becoming more and more tense. Therefore, buildings with large bays and flexible separation of large column networks have developed rapidly. [0003] The floor is an important part of the building structure, it...

AI Technical Summary

Problems solved by technology

Due to the influence of the prestressed concrete structure itself, the height-span ratio of the beam member can only be at least 1/20, resulting in a large section of the structural member, which affects the actual use height, and the content of prestressed struct