Double-layer reticulated shell large-span circumferential energy dissipation structure system

Abstract

The invention discloses a double-layer reticulated shell large-span circumferential energy dissipation structure system. The double-layer reticulated shell large-span circumferential energy dissipation structure system comprises a plurality of outer convex petal-shaped structural units connected in sequence, and the upper portions of the petal-shaped structural units are connected to form an integral structure through a ring beam. The petal-shaped structural units are connected in sequence in a hinge joint and a fixed connection mode, the hinge joint is connection through a steel structure hinge device capable of realizing self recovery, and the bottoms of the petal-shaped structural units are connected with a foundation. The structure system performs circumferential energy dissipation, isgood in deformation coordination and light in self-weight, and solves various problems of long-span buildings, especially steel structure buildings. In the structure system, the hinge joint and rigidconnection are sequentially arranged to form a breathable structure to realize consumption, so that the structure can be controlled to deform when bearing temperature stress, a statically indeterminate spatial structure under the action of gravity, wind, earthquake and other loads is realized, and a statically determinate structure is used for adapting to larger temperature stress to realize freeexpansion and contraction of the structure.

Description

technical field [0001] The invention relates to the technical field of building structures, in particular to a large-span structural system of double-layer reticulated shells capable of releasing temperature stress and hoop energy consumption and shock absorption. Background technique [0002] The reticulated shell is a space bar structure similar to the flat grid frame. It is based on the bars, forms a grid according to certain rules, and is a space frame arranged according to the shell structure. It has both the properties of the bar system and the shell. 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, pl...

AI Technical Summary

Problems solved by technology

However, when the reticulated shell structure is subjected to external loads or additional effects such as wind loads and temperature differences, it needs a certain deformation margin to maintain its structural stability. The existing large-span giant steel structures often cause large deformations during operation. Instability or failure of the steel structure poses a major safety hazard

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