Fabricated concrete orthogonal-diagonal lattice space grid box type tube-in-tube structure and making method thereof

Abstract

The invention relates to a fabricated concrete orthogonal-diagonal lattice space grid box type tube-in-tube structure. One ends of floor open-web girders and peripheral lattice frame columns are in rigid connection in a two-to-one mode, and the other ends of the open-web girders and tube core shear walls are in rigid connection in a two-to-one mode; a horizontal open-web floor and a peripheral lattice frame are prefabricated in a unitized mode and then installed in a layered mode; the relationship between a peripheral lattice frame column grid a1 and a floor grid a2 is a2=a1sian45 degrees; lateral stiffness is improved by 30%, the influence of shear lag on four-corner columns is reduced, and construction cost is reduced by 25%; indoor rooms can be divided freely, the limitation that girders are required where walls exist is avoided, and storey height is reduced and the number of layers of towers is increased under the condition that maximum tower height and storey clear height are unchanged.

Description

technical field [0001] The invention relates to a building structure system of high-rise and super-high-rise office buildings, in particular to a prefabricated concrete orthogonal inclined space grid box-type tube-in-tube structure and a manufacturing method, belonging to the technical field of building structures. Background technique [0002] In 2014, the Ministry of Housing and Urban-Rural Development issued the "Technical Regulations for Prefabricated Concrete Structures" (JGJ1-2014), mainly for traditional concrete structures, such as frame, frame. shear, frame. tube and other structural systems, such as figure 1 Shown is a traditional concrete frame and core tube structure. The shear wall of the central core tube is cast on site, and the surrounding frame columns, beams, secondary beams and slabs are prefabricated. It is built from bottom to top, layer by layer. On the first floor, the prefabricated columns and beams are set up as post-casting areas at the joints, and ...

AI Technical Summary

Problems solved by technology

For high-rise and super high-rise buildings, the surrounding frame beams and columns are often fat beams and columns, the light ones are several tons, the heavy ones are more than ten tons, and they are all single. It is difficult to transport, install and manufacture. For super high-rise buildings, traditional It is difficult to reduce the cost of the project to achieve the effect of energy saving and emission reduction if the structural system is assembled and constructed as a whole

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