Concrete composite beam
A technology of concrete and superimposed beams, applied in the direction of joists, girders, trusses, etc., can solve the problems of weak connection strength, prone to breakage, cracks, etc. Effect
Active Publication Date: 2012-10-10
吴充
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Problems solved by technology
When hoisting or transporting prefabricated beams in prefabricated places, quality problems such as breakage and cracks are prone to occur
And the connection strength at primary and secondary beam joints and beam-column joints is weak
Method used
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Embodiment Construction
[0023] The technical solutions in the embodiments of the present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.
[0024] The present invention is attached Figures 1 to 15 shown. A concrete composite beam includes a prefabricated beam 1, a prefabricated member plate 11, erecting steel bars 14, and a concrete composite layer 13. The upper side of the middle of the prefabricated beam 1 is provided with a through transverse groove 5, and the prefabricated beam 1 is pre-embedded with longitudinal receiving beams. The reinforcement bars 4, the stirrups 3, and the transverse grooves 5 of the prefabricated beams are provided with reinforcements 6. like figure 1 , 2 As shown, reinforcements 6 are embedded in the transverse groove 5 of the prefabricated beam 1, and the two ends of the reinforcement 6 are respectively extended into the two side walls of the transverse groove 5 to be tied. When the be...
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The invention discloses a concrete composite beam. The concrete composite beam comprises a precast beam (1), a precast element plate (8), an erection bar (14), and a concrete composite layer (13), wherein the upper side of the middle of the precast beam (1) is provided with a perforated transverse groove (5), and the transverse groove (5) of the precast beam (1) is provided with a reinforcement piece (6). When the beam is installed, the beam required to be erected is shelved in the transverse groove (5) to form a criss-cross primary and secondary beam system, the precast element plate (8) is shelved on the beam, the precast element plate (8) and a beam upper part whole cast-in-place concrete superposition layer (13) form a concrete composite beam plate system; and the reinforcement piece (6) of the transverse groove (5) of the precast beam guarantees that the beam is not easy to snap, crack or disrepair in a lifting construction process, the beam can be precast with a hollow part (20); the form of an end part and the grooves (19) at two sides of the transverse groove (5) ensure the effective high-strength connection between a beam column and the beam and a beam node. The composite beam is suitable for general industry and civilian construction.
Description
technical field [0001] The invention relates to the field of construction, in particular to a concrete composite beam. Background technique [0002] Nowadays, because the prefabricated monolithic structure combines the cast-in-place concrete structure and the prefabricated integral structure, it is widely used abroad, and it is also in the promotion stage in my country. The research on prefabricated monolithic structures in China is gradually increasing. The structure has a good application prospect. However, there is still a problem of poor integrity in the assembled monolithic structure. The superimposed beam is an integral structure formed by prefabrication in a part of the prefabrication site and cast-in-place at the construction site. At present, the prefabricated beam is mostly made into a T-shaped section or a rectangular section. When hoisting or transporting prefabricated beams in prefabricated places, quality problems such as breakage and cracks are prone to occur...
Claims
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Inventor 周绪红吴方伯袁海梅黄海林刘鹰
Owner 吴充