Sliding connection structure between steel ladder and existing building concrete frame

Abstract

A sliding connection structure between a steel ladder and an existing building concrete frame comprises a steel ladder supporting base assembly and an existing building concrete frame anchoring assembly. The steel ladder supporting base assembly is rigidly connected to the bottom of the steel ladder longitudinal beam; the existing building concrete frame anchoring assembly is rigidly connected to the top of an existing building concrete frame. The steel ladder supporting base assembly is in sliding connection with the existing building concrete frame anchoring assembly. According to the sliding connection structure between the steel ladder and the existing building concrete frame, the influence on the bearing capacity and rigidity of the existing building concrete frame can be avoided, internal force redistribution of the existing building concrete frame cannot be caused, the transformation and reinforcement range of an existing building is narrowed, and the transformation amount and the transformation cost are reduced; when an earthquake occurs, relative slippage can be generated between the steel ladder and the existing building concrete frame, so that structural damage of the steel ladder before the existing building concrete frame can be avoided, and the reliability of the evacuation and escape function of the steel ladder is ensured.

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