Large-span breathable structural system

Abstract

The invention discloses a large-span breathable structural system. The large-span breathable structural system comprises a reticulated shell and a plurality of latticed columns. The reticulated shell is a double-layer reticulated shell with a plurality of sexangular frame units, the sexangular frame units on the upper layer and the sexangular frame units on the lower layer are connected through elastic short columns, the sexangular frame units on the upper layer and the sexangular frame units on the lower layer are in tractive connection through carbon fibers, the vertex angle and the frames of each sexangular frame unit are in tractive connection through carbon fibers, and the reticulated shell is connected with the latticed columns through end joints. According to the large-span breathable structural system, rigidity-flexibility combination is achieved, the deformation coordinated property is good, the self-weight is low, and the problems which long-span buildings confront are solved. The double-layer spatial reticulated shell structure in the structural system achieves absorption through extension and retraction of the high-elasticity and high-energy-consumption hollow short columns. By arranging the breathable joints, horizontal controllable deformation occurs when the structure bears thermal stress, so that it is achieved that the structure is a statically indeterminate spatial structure under the load action of gravity, wind, earthquakes and the like, the indeterminate structure can be used for adapting to high action of temperature stress, and therefore the structure can extend and retract freely.

Description

technical field [0001] The invention belongs to the technical field of building structures, in particular to a large-span double-layer space reticulated shell structure capable of releasing temperature stress and consuming energy for shock absorption. Background technique [0002] The reticulated shell is a space bar structure similar to the flat grid. It is based on bars, forms a grid according to certain rules, and is a space frame arranged according to the shell structure. It has the properties of bar systems and shells. The characteristic of its force transmission is mainly to transmit force point by point through the tension, pressure or shear force in two directions in the shell. This structure is a spatial structure that has attracted much attention at home and abroad and has broad development prospects. The reticulated shell structure also includes single-layer reticulated shell structure, prestressed reticulated shell structure, plate-cone reticulated shell structu...

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Problems solved by technology

[0003] The lattice column used to support the reticulated shell is connected with the reticulated shell structure, but the reticulated shell of the steel structure will produce temperature stress under different temperature environments. If the lattice column and the reticulated shell structure are rigidly connected, it will affect the Lattice columns generate torque

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