Waterproof expansion joint structure and construction method of ultra-long underground structure

Abstract

The invention discloses a waterproof expansion joint structure of an ultra-long underground structure and a construction method thereof, which comprises two end steel plates respectively connected with the main body concrete structures on both sides, and the steel plates at the two ends are intersected and spaced apart from each other on the respective opposite sides A toothed steel plate is provided, and the toothed steel plate leaves a space for expansion and contraction from the side of the opposite end steel plate, and the end of the toothed steel plate located in the other expansion and contraction spaces except the top expansion space is provided with a profiled steel plate. In the present invention, bayonet steel plates are respectively arranged at intervals on the steel plates at the ends of both sides. The bayonet steel plates on both sides are intersected with each other and there is space for expansion and contraction. They can offset each other to offset the deformation of the ultra-long underground structure, avoiding the generation of temperature stress, thereby avoiding the formation of temperature cracks, and at the same time, it is not necessary to drill precipitation wells and long-term precipitation like setting up post-casting belts, and the cost is low.

Description

technical field [0001] The invention relates to a concrete connecting beam structure, in particular to a waterproof expansion joint structure of an ultra-long underground structure. Background technique [0002] Due to issues related to security, moisture-proof, and light-proof, some important collections of art galleries or art museums or some important storage spaces (such as treasury) are often placed in underground spaces. These important underground structures are due to their particularity and importance. Sex, the design service life is often 100 years. In addition, these structures must be kept dry due to their functional requirements. [0003] Fresh concrete shrinks as it hardens, and built structures expand when heated and contract when cooled. Most of the hardening and shrinkage of concrete will be completed in the first 1 to 2 months after construction, and the effect of temperature changes on the structure is frequent. When its deformation is constrained, temp...

AI Technical Summary

Problems solved by technology

Therefore, improper setting of expansion joints will cause the loss of economical efficiency of materials in other positions, and even threaten the safety of the main structure.

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