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Deformation-controllable prestressed concrete cantilever supporting structure and design and construction method thereof
The invention discloses a deformation-controllable prestressed concrete cantilever supporting structure and a design and construction method thereof, and relates to the field of geotechnical engineering. The structure comprises a common concrete cantilever supporting structure, prestressed tendons, fixing ends, and stretching ends. The stretching ends and the fixing ends are respectively on the upper ends and the lower ends of the prestressed tendons. The prestressed tendons and the fixing ends are arranged in the common concrete cantilever supporting structure. The stretching ends are anchored on the top end and/or the side wall of the common concrete cantilever supporting structure. The construction method is: arranging the prestressed tendons and anchorage devices of the prestressed tendon fixing ends in a reinforcement cage; lowering the reinforcement cage in a hole or a groove; concreting and constructing a top beam; and tensioning the prestressed tendons according to a pre-designed tensioning scheme, and anchoring the prestressed tendons on the stretching ends, so as to complete construction. The structure and the method solve problems that a common cantilever supporting structure is excessive in deformation, and configuring the prestressed tendons can obviously improve bearing capacity of the supporting structure, and a problem that a common cantilever supporting structure is excessive in size is solved.
Deformation-controllable prestressed concrete cantilever supporting structure and design and construction method thereof
The invention discloses a deformation-controllable prestressed concrete cantilever supporting structure and a design and construction method thereof, and relates to the field of geotechnical engineering. The structure comprises a common concrete cantilever supporting structure, prestressed tendons, fixing ends, and stretching ends. The stretching ends and the fixing ends are respectively on the upper ends and the lower ends of the prestressed tendons. The prestressed tendons and the fixing ends are arranged in the common concrete cantilever supporting structure. The stretching ends are anchored on the top end and/or the side wall of the common concrete cantilever supporting structure. The construction method is: arranging the prestressed tendons and anchorage devices of the prestressed tendon fixing ends in a reinforcement cage; lowering the reinforcement cage in a hole or a groove; concreting and constructing a top beam; and tensioning the prestressed tendons according to a pre-designed tensioning scheme, and anchoring the prestressed tendons on the stretching ends, so as to complete construction. The structure and the method solve problems that a common cantilever supporting structure is excessive in deformation, and configuring the prestressed tendons can obviously improve bearing capacity of the supporting structure, and a problem that a common cantilever supporting structure is excessive in size is solved.
Deformation-controllable prestressed concrete cantilever supporting structure and design and construction method thereof
YANG BIN (author) / WU CHUNQIU (author) / ZUO HUAIXI (author) / ZHENG WENWEI (author)
2015-10-28
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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