Force transfer structure of new and old concrete and construction method of force transfer structure

Abstract

The invention discloses a force transfer structure of new and old concrete and a construction method thereof, and the force transfer structure is characterized in that a first lower reinforcing steel bar is arranged on the side surface of a treated old concrete structure, a first upper reinforcing steel bar is arranged right above the first lower reinforcing steel bar, and the first upper reinforcing steel bar extends into the upper part of the top of the treated old concrete structure; a second upper reinforcing steel bar and a second lower reinforcing steel bar which are horizontally arranged are arranged above the first upper reinforcing steel bar, the second upper reinforcing steel bar and the second lower reinforcing steel bar extend above the top of the treated old concrete structure, and the first upper reinforcing steel bar and the first lower reinforcing steel bar form a structural beam after being subjected to concrete pouring; the second upper reinforcing steel bar and the second lower reinforcing steel bar form a structural plate after being subjected to concrete pouring, and the part, extending into the upper part of the top of the treated old concrete structure, of the surface of the structural plate forms an extension plate after being subjected to concrete pouring. According to the cross section of the structural beam, the thickness of the structural slab and the reinforcement condition, high vertical bearing capacity can be provided, the stacking problem of the slab at the connecting position is solved, and horizontal loads can be transmitted.

Description

technical field [0001] The invention relates to the field of engineering construction, in particular to urban renewal, old renovation, restoration of foundation pits, etc., and provides a force transmission structure of old and new concrete and a construction method thereof. Background technique [0002] While the city is developing rapidly, it is also gradually solving the problems left over from history. The renovation of old districts and urban renewal have become hot topics nowadays. Many cities have already set up urban renewal funds. It is understood that Shanghai established an 80 billion urban renewal fund on June 2, 2021, which can be used for investment in old district renovation and urban renewal projects. In the old renovation and urban renewal, it is inevitable to encounter the problem of force transmission and connection of the old and new concrete structures. [0003] In addition, many new projects are also constructed in stages and in different areas. The st...

AI Technical Summary

Problems solved by technology

If the structural span of the junction is large and the load-bearing requirements are high, the newly poured beams and slabs need to be rebar-planted. This workload is huge and requires a lot of manpower and material resources.

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