Fabricated large-span double-T-slab concrete underground complex structure

Abstract

The invention discloses a fabricated large-span double-T-slab concrete underground complex structure, and belongs to the field of urban underground space construction engineering. A prefabricated mainbeam and a bearing column are connected through expansion bolts penetrating through vertical bolt holes, the prefabricated main beam and prefabricated secondary beams are connected through expansionbolts penetrating through vertical bolt holes, and the prefabricated secondary beams are connected through expansion bolts penetrating through transverse bolt holes. Connecting grooves conforming to the rib parts of a double T-slab are prefabricated in the prefabricated main beam and the prefabricated secondary beams, and the prefabricated main beam and the prefabricated secondary beams are connected with ribs of the double T-slab through bolts penetrating through bolt holes reserved in the connecting grooves. The connection structure of the fabricated large-span double-T-slab concrete underground complex structure solves the problem of hinge joint caused by joints; the connection joints of the structure are connected by adopting the bolts; the connection mode is simple to operate and convenient to connect and saves construction period; the double-T slab has the characteristics of high bearing capacity, good durability, convenient construction, good economy and the like; and the combination of two T slabs promotes the comprehensive and rapid development of a fabricated building.

Description

technical field [0001] The invention belongs to the field of urban underground space construction engineering, in particular to an assembled large-span double T-slab concrete underground complex structure. Background technique [0002] Prefabricated concrete buildings refer to prefabricated concrete components produced in factories. Concrete structure housing buildings designed and constructed through on-site assembly. The assembly methods of components generally include on-site post-casting laminated layer concrete, steel bar anchoring and post-casting concrete connection, etc. The steel bar connection can be connected by sleeve grouting connection, welding, mechanical connection and lap connection of reserved holes. At present, urban transportation construction is in full swing. As the country further promotes the strategy of comprehensive pipe corridors and sponge cities, large and medium-sized cities in my country will surely set off a new round of climax in underground...

AI Technical Summary

Problems solved by technology

[0006] The underground complex structure solves the problem caused by joints. The joints of this structure are connected by bolts. This connection method is simple to operate, convenient to connect, and saves construction time. The double T-plate has high bearing capacity, good durability, The characteristics of convenient construction and good economy, the combination of the two promotes the comprehensive and rapid development of prefabricated buildings

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