A connection structure and design calculation method of steel-concrete composite beams
A composite beam and structure technology, applied in building structure, design optimization/simulation, building components, etc., can solve problems such as low construction efficiency, poor durability, and easy cracking
Active Publication Date: 2021-09-10
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +1
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Problems solved by technology
[0004] In order to solve the above problems, the present invention proposes a steel-concrete composite beam connection structure and a design calculation method. The connection structure can solve the technical problems of easy cracking, low construction efficiency and poor durability of the traditional steel-concrete composite beam in the negative moment zone. It has reliable performance, simple structure, convenient factory production, convenient on-site splicing and high construction efficiency
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[0084] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0085] In describing the present invention, it is to be understood that the terms "comprises / comprising", "consisting of" or any other variation thereof are intended to cover a non-exclusive inclusion such that a product, device, A process or method includes not only those elements, but may also include other elements not expressly listed, or elements inherent in such a product, apparatus, process, or method, as required. Without further limitations, an element defined by the phrase "comprising / comprising...", "consisting of... does not exclude the...
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The invention discloses a steel-concrete composite beam connection structure and a design calculation method. The connection structure includes a prefabricated concrete floor slab, an H-shaped steel beam, a rear reinforcement frame, a rear through longitudinal reinforcement and post-cast concrete. The side of the connection side is provided with a longitudinal through groove and a plurality of vertical through grooves, connecting steel bars protrude from the vertical through grooves, and hooks are formed at the ends of the connecting steel bars; the precast concrete floors on both sides are spliced on the upper wings of the H-shaped steel beams The rear reinforcement frame is centered in the vertical through groove formed by the butt joint of the floors on both sides; the rear penetration longitudinal reinforcement passes through the rear reinforcement frame and the hooks connecting the ends of the reinforcement bars; the post-cast concrete is poured in the longitudinal direction through grooves and a plurality of vertical through grooves. The invention solves the technical problems of easy cracking, low construction efficiency and poor durability in the negative bending moment area of the traditional steel-concrete composite beam, and has the advantages of reliable performance, simple structure, convenient splicing on the factory production site, and high construction efficiency.
Description
technical field [0001] The invention relates to the technical field of building structure connection structures, in particular to a steel-concrete composite beam connection structure and a design calculation method. Background technique [0002] According to the relevant requirements of the national sustainable development strategy, green and industrialized construction has become the main trend of the development of my country's construction industry. Vigorously promoting prefabricated buildings and continuously improving the assembly rate of construction projects has gradually become the key development direction of my country's civil engineering field. The steel-concrete composite structure can make full use of the performance advantages of steel and concrete materials. It has the advantages of high bearing capacity, high rigidity, good seismic and dynamic performance, small component cross-sectional size, and quick and convenient construction. It has become an important s...
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IPC IPC(8): E04B5/02E04B5/10G06F30/13G06F30/20
CPCE04B5/023E04B5/10G06F30/13G06F30/20G06F2119/14
Inventor 刘晓刚王皓郑明召岳清瑞王晟刘洁
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP