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Basement structure using high-ductility concrete belt to replace expansion joint and construction method

A technology of high ductility concrete and construction methods, which can be applied to underwater structures, infrastructure engineering, artificial islands, etc., and can solve problems affecting the construction of basements and underground corridors, hidden dangers of water seepage, uneven shrinkage of underground corridors and basement structures, etc. , to achieve the effect of solving the hidden danger of water seepage

Pending Publication Date: 2022-05-24
ZHEJIANG PROVINCE INST OF ARCHITECTURAL DESIGN & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a basement structure and construction method using high ductility concrete strips instead of expansion joints, which can effectively solve the problem of cracks between the underground corridor and the basement structure due to uneven shrinkage; Solve the hidden dangers of water seepage that may exist in the later stage of the building due to the use of expansion joints in the prior art, and the water ingress in the basement and the underground corridor that exists during the construction of the basement structure and the underground corridor structure, which affects the follow-up of the basement and the underground corridor. The problem of process construction

Method used

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  • Basement structure using high-ductility concrete belt to replace expansion joint and construction method
  • Basement structure using high-ductility concrete belt to replace expansion joint and construction method
  • Basement structure using high-ductility concrete belt to replace expansion joint and construction method

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specific Embodiment 1

[0048] Specific embodiment one: as figure 1 , figure 2 , image 3 , Figure 4 As shown, a basement structure construction method using high ductility concrete belts instead of expansion joints, the basement structure includes two basements 1 and an underground corridor 2 connecting the two basements.

[0049] The construction method of basement structure with high ductility concrete belt instead of expansion joint includes the following steps,

[0050] The bottom plate is poured, and the bottom plate includes the corridor raft plate 2.1 and the basement bottom plate 1.1 of one of the two basements. The basement bottom plate is connected with the corridor raft plate as a whole. The construction of the pouring bottom plate includes the following steps:

[0051] A1, set two raft construction joints at the corridor raft, one of the raft construction joints is close to one end of the underground corridor, and the other raft construction joint is close to the other end of the u...

specific Embodiment 2

[0063] Specific embodiment 2: The construction method of the basement structure using high ductility concrete belts instead of expansion joints in this embodiment refers to specific embodiment 1, and the difference lies in:

[0064] like Figure 5As shown, a number of corridor beams 5 for supporting the corridor roof are arranged below the corridor roof, and the corridor beams extend along the length direction of the underground corridor. The corridor beams intersect with two high-ductility concrete roof expansion strips. The corridor beams include end beams 5.1, high ductility concrete connecting beams 5.2, corridor main beams 5.3, high ductility concrete connecting beams and end beams that are sequentially distributed along the length of the underground corridor. The high ductility concrete connecting beam connects the end beam and the main girder of the corridor. The end beams and the main girder of the corridor are formed by pouring ordinary concrete. The high ductility...

Embodiment 1

[0066] In step B2 of the first embodiment, when the high ductility concrete roof expansion belt is poured, a reserved hole is preset on the high ductility concrete roof expansion belt corresponding to the high ductility concrete connecting beam, and the reserved hole penetrates the ring high ductility concrete. The upper and lower surfaces of the top plate telescopic belt. After the construction of the main structure of the basement and the underground corridor is completed, at the position of the high-ductility concrete connecting beam below the annular high-ductility concrete roof belt, a formwork is set to form a pouring cavity, and then the high-ductility concrete is poured into the pouring cavity through the reserved holes to ensure Forms high ductility concrete connecting beams.

[0067] In this way, in the construction process of the main structure of the basement and the underground corridor, the main beam of the corridor can be used to ensure the stability of the corr...

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Abstract

The invention discloses a basement structure using a high-ductility concrete belt to replace an expansion joint and a construction method, and aims to provide a basement structure capable of effectively solving the problem of cracks caused by non-uniform shrinkage between an underground gallery and the basement structure. The basement structure and the construction method can effectively solve the problem that in the prior art, due to the fact that expansion joints are adopted, water seepage hidden danger possibly exists in the later period of a building, and water enters a basement and an underground gallery in the construction process of the basement structure and the underground gallery structure. The basement structure construction method comprises the steps that a bottom plate is poured, the bottom plate comprises a basement bottom plate and a gallery raft plate of a certain layer of two basements, and the basement bottom plate and the gallery raft plate are connected into a whole; and a top plate is poured, the top plate comprises a basement top plate and a gallery top plate of a certain layer of the two basements, and a basement bottom plate and the gallery top plate are connected into a whole.

Description

technical field [0001] The invention relates to the field of underground structure construction, in particular to a basement structure and a construction method using high ductility concrete belts instead of expansion joints. Background technique [0002] In recent years, in order to improve the quality of underground traffic and the function of buildings, underground corridors are generally used to connect the basements of adjacent plots. Since the plane stiffness of the basement is much greater than that of the underground corridor, it is easy for the basement and the underground corridor to have cracks due to uneven shrinkage at the sudden change of stiffness and plane size. At present, the conventional method of engineering is to set expansion joints (ie, expansion and post-casting belts) between the underground corridor and the basement structure to solve the problem of cracks due to uneven shrinkage. In today's concrete engineering, the expansion joint technology has ...

Claims

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Application Information

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IPC IPC(8): E02D29/045E02D29/16E02D31/02
CPCE02D29/045E02D29/16E02D31/02Y02E10/20
Inventor 祝文畏沈米钢俞佳祺沈芳华黄飞燕周豪毅岳燕玲顾卫东施碧锋
Owner ZHEJIANG PROVINCE INST OF ARCHITECTURAL DESIGN & RES