Prefabricated prestressed concrete frame beam-column joints with differential use of high-performance materials
A technology of prefabricated concrete and beam-column joints, applied in building components, earthquake resistance, construction, etc., can solve problems such as inconvenient construction, insufficient applicability, and inconspicuous application advantages, and achieve reduced construction difficulty, reduced manufacturing, and reduced complexity Effect
Active Publication Date: 2018-05-15
SOUTHEAST UNIV
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Problems solved by technology
Most of the above prefabricated frame beam-column joint connection technologies have problems such as insufficient applicability and inconvenient construction, which makes the application advantages of prefabricated prestressed concrete assembly integral frame structures not obvious
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[0018] Below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention will be further described:
[0019] figure 1 It is a schematic diagram of a prefabricated prestressed concrete frame beam-column node using high-performance materials differentially in the present invention, and figure 2 corresponding figure 1 Sectional view of the precast concrete beam and the upper part of the composite beam in the cast-in-place area. Such as figure 1 , figure 2 As shown, a precast prestressed concrete frame beam-column joint using high-performance materials is mainly composed of precast concrete beams 1, the upper cast-in-place area of composite beams 2, ordinary stressed steel bars at the bottom of precast beams 3, and precast concrete columns 4 , Connecting sleeve 5, post-cast section of beam-column joint at both ends of precast beam 6, prestressed tendon at the bottom of precast beam 7, U-shaped steel bar 8, longitudinal steel b...
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The invention discloses a prefabricated prestressed concrete frame beam-column joint making disparate use of high performance materials, comprising prefabricated concrete beams, prefabricated concrete columns, prefabricated beam-bottom prestressed tendons, common rebars, beam-top common rebars, in-column vertical rebars, sleeves, connecting rebars, and U-shaped rebars. Post-cast sections are reserved at two ends of the pre-fabricated beams, and the prestressed tendons fitted to the bottom of the prefabricated beams extend out of beam ends and are anchored to the beam-end post-cast sections, forming the prefabricated concrete beam-column joint with the prefabricated concrete beams and columns through post-cast concrete. In order to ensure the integrity of the beam-column joint, the beam-bottom common stressed rebars are connected with aseismic rebars through the sleeves and the U-shaped rebars are disposed in a joint post-cast area. In order to improve the energy dissipating capacity of the beam-column joint, the two ends of the prefabricated beams are made by casting high ultimate strain concrete. The invention reduces the production and construction difficulty, decreases the section height or steel usage of the prefabricated concrete beams and ensures the integrity and aseismic performance of the beam-column joint.
Description
technical field [0001] The invention relates to a prefabricated prestressed concrete frame beam-column node connection structure using high-performance materials differentially, and belongs to the technical field of civil engineering prefabricated concrete structures. Background technique [0002] The frame structure is mainly constructed of beams, columns and beam-column joints, which is the most widely used structural form in construction engineering. The prefabricated prestressed concrete assembly integral frame structure system meets the requirements of "building industrialization, housing industrialization" and green buildings. This type of structural system has the advantages of fast construction speed, low environmental pollution, guaranteed quality, and good durability. features. [0003] The core technology of precast prestressed concrete assembly integral frame structure is the joint connection structure form of precast concrete beams and precast concrete columns...
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IPC IPC(8): E04B1/21E04B1/22E04B1/58E04B1/98
CPCE04B1/21E04B1/22E04B1/58E04B1/98
Inventor 冯健刘亚非金如元陈耀庞涛蔡建国刘立新
Owner SOUTHEAST UNIV