Rod-type hydraulic linkage mechanism suitable for steel-concrete composite structures against progressive collapse

Abstract

A rod-type hydraulic linkage mechanism suitable for resisting continuous collapse of steel-concrete composite structures, wherein the rod-type hydraulic linkage mechanism includes a pull rod, an internal resistance hydraulic damper, a pin shaft, and a pin seat, and the pin seats are respectively installed on steel pipe- At the position of the upper flange of the concrete column and the steel beam, one end of the tie rod and the hydraulic damper are respectively connected to the pin seat on the steel tube concrete column and the steel beam through a pin, and the other ends of the two are connected through a pin. The patent of this application is mainly applied to the position of the salient column of the steel-concrete composite structure. lead to progressive collapse of the structure. The application has simple structure, convenient construction and installation, high reliability, does not affect the normal use of the structure, and is suitable for application in steel-concrete composite structures.

Description

technical field [0001] The application belongs to the field of steel-concrete composite structures, and relates to an anti-continuous collapse mechanism. Background technique [0002] Due to its advantages in stiffness and bearing capacity, steel-concrete composite structures are widely used in building structures, especially long-span, heavy-duty structures and tall buildings. However, because the current building design code does not consider the effect of accidental events (such as explosion, impact, etc.) on the structure, a large number of existing and new composite structures cannot meet the requirements of continuous collapse resistance. [0003] Among them, after the CFST lobe column in the composite structure fails under the action of an accident, the connected steel beams cannot provide an additional effective way of resisting collapse, which is particularly likely to lead to continuous collapse of the structure. The technology still lacks practical and effective ...

AI Technical Summary

Problems solved by technology

However, because the current building design codes do not consider the effects of accidents (such as explosions, impacts, etc.) on the structure, a large number of existing and newly built composite structures cannot meet the requirements for resistance to progressive collapse.

[0003] Among them, after the concrete-filled steel tube convex corner column in the composite structure fails under the action of an accident, the steel beams connected to it cannot provide an additional effective anti-collapse force transmission path, which is particularly likely to lead to continuous collapse of the structure. However, the existing anti-collapse Technology still lacks practical and effective measures for convex corner columns

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