Precast concrete frame system with differentiated use of high-performance materials
A prefabricated concrete and frame system technology, which is applied in the direction of architecture and building structure, can solve the problems of unobvious application advantages, insufficient applicability, and inconvenient construction, so as to reduce the beam section or steel consumption, reduce construction difficulty, The effect of reducing complexity
Active Publication Date: 2018-08-21
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 general prefabricated beam and prefabricated column and its connection schematic diagram in the prefabricated concrete frame system of 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. like figure 1 , figure 2 As shown, the differentially used precast concrete frame system of high-performance materials of the present invention mainly includes a precast concrete beam 1, an upper cast-in-place area 2 of a composite beam located on the upper part of the precast concrete beam 1, a medium-strength prestressed tendon 3, Precast concrete column 4, post-cast section reserved at both ends of the precast beam 5, ordinary stressed steel bar at the top of the beam 6, longitudinal steel bar insi...
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The invention discloses a precast concrete frame system using high-performance materials differentially. The precast concrete frame system mainly comprises a precast concrete beam, precast concrete columns, precast beam bottom medium-strength prestressed tendons, beam top common steel bars, in-column longitudinal steel bars, stirrups, sleeves, connecting steel bars and the like. The beam bottom is only provided with the medium-strength prestressed tendons. The medium-strength prestressed tendons extend out of the beam ends and are connected with the common steel bars meeting the anti-seismic requirements through the sleeves. Common concrete is poured to a superposed beam upper cast-in-place area. High-limit strain concrete is poured to post-cast sections at the two ends of the precast beam. According to the precast concrete frame system, the prestressed tendons, concrete and other high-performance materials are used differentially, so that the inherent characteristics and advantages of the different materials are given full play to, the production and construction difficulty is lowered, the height of the section or steel quantity of the precast concrete beam is reduced, and the integrity and anti-seismic performance of the precast concrete frame system are guaranteed.
Description
technical field [0001] The invention relates to a connection and construction method of a prefabricated concrete frame system, 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 monolithic frame structure 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 prefabricated prestressed concrete assembled integral frame structure is the connection structure form of precast concrete beams and precast concrete columns, and its construction method and quality directly affe...
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IPC IPC(8): E04B1/22E04B1/21
CPCE04B1/21E04B1/22
Inventor 冯健陈耀蔡建国张晋
Owner SOUTHEAST UNIV