Construction method for building concrete superface with surface modeling

Abstract

The invention relates to a construction method for building concrete superface with surface modeling, which comprises the following steps: a horizontal projection is carried out on a space curved surface structure; a horizontal projection plane is divided into a plurality of grids; by establishing a local coordinate system, the elevation on the space curved surface corresponding to each grid node in the coordinate frame of the horizontal projection plane is figured out; according to each elevation data, the position of the cross rod of each load steel tube is determined so as to finish bridging; and then according to the elevation data, a back purlin is formed, and finally the formed back purlin is fixed on the corresponding cross rod of each load steel tube; a defined of water reducing agent and fly ash with small grain diameter are doped into concrete; firstly, pump pipes are arranged in the lowest position of a double-parabolic slab, distribute materials from bottom to top along a diagonal direction, pushes toward the highest point; a pump truck alternatively cuts materials at both sides of the diagonal, builds and vibrates, which is shot by people in real time. The construction method can reduce the difficult problem and strength of the construction, has fast construction process, low construction cost and high construction quality.

Description

technical field [0001] The invention relates to a method for constructing a concrete top surface of a building or a structure with a curved shape, in particular to a construction method for a concrete roof with a curved shape. [0002] In this patent specification, the term "curved surface" on the top surface of a building includes, but is not limited to: hyperboloid, double slope, single curved single slope, sphere, ellipsoid, ellipse, parabola, the mutual combination of these elements and further combinations of planes, and so on. [0003] In particular, in this patent specification, the term "hyperboloid" about the top surface of a building includes not only a curved surface whose cross-section is a hyperbola in the mathematical sense, but also includes that the projections on the xz and yz planes in the xyz three-dimensional coordinate system are both curves any surface. Background technique [0004] With the development of the construction industry, there are more and...

AI Technical Summary

Problems solved by technology

[0005] Since the customized non-standard steel form is specially made for the construction of a certain building, it is difficult to be used again for the construction of the top surface of other special-shaped buildings; due to the heavy weight of the customized non-standard steel form, it also consumes more energy for hoisting; The hoisting, installation, commissioning, and disassembly of customized non-standard steel molds consume a lot of time and manpower

These factors lead to very high preparation costs for construction tooling, and also increase construction costs

[0006] Especially for thin-slab structures with curved concrete surfaces, since the curvature of each point is different, the amount of elevation data provided on the drawings is limited. If the existing method is used for construction, it cannot meet the construction needs and cannot ensure the accuracy requirements of the curvature of the thin-slab structure

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