Connecting structure and method for joint of new and old concrete members

Abstract

The invention provides a connecting structure and method for the joint of new and old concrete members. The connecting structure for the joint of the new and old concrete members includes a new concrete member and an old concrete members which are oppositely arranged; a construction joint exists between the new concrete member and the old concrete member; first stressed steel bars are horizontallyembedded in the old concrete member, and second stressed steel bars are horizontally embedded in the new concrete member; the first stressed steel bars and the second steel bars are all used for supporting the new concrete member; the first stressed steel bars and the second stressed steel bars are coaxially connected through steel bar connectors, and the steel bar connectors are embedded in theold concrete member and the end parts of the steel bar connectors are exposed on the wall surface, opposite to the new concrete member, of the old concrete member; water expansion water stop strips are arranged on the wall surface, opposite to the new concrete member, of the old concrete member; and concrete is poured into the construction joint between the new concrete member and the old concretemember through a grouting duct and a grouting pipe. The connecting structure and method for the joint of the new and old concrete members is suitable for situations that the buried depth is large, the groundwater level is high, and the construction joints are influenced by the groundwater environment for a long time.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a connection structure and method for the junction of old and new concrete components. Background technique [0002] Wuhan Rail Transit Line 8 is an important inter-town cross-river rail transit backbone line in the Wuhan rail transit network. Zhuyeshan Station is located at the northwest corner of Development Avenue at the Zhuyeshan turntable on Huangpu Street. The Tiantian Square Greening Landscape and Underground Space Utilization Project of Wuhan Rail Transit Line 8 is a demonstration project for Wuhan subway property development and a model of the combination of urban landscape and municipal infrastructure. The Tiantian Plaza project covers an area of ​​32,356 square meters, with two underground floors. Structurally, it is composed of a large modern commercial complex on the north and south sides and the main structure of the station. [0003] Due to the tight...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to address the defects of the prior art, to provide a connection structure and method for the junction of old and new concrete components, which can be applied to reinforced concrete that cannot be constructed in stages by conventional post-planting bars or post-pouring belts. The structure is suitable for the situation where the buried depth is large, the groundwater level is high, and the construction joints are affected by the groundwater environment for a long time

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