Assembled concrete-filled steel tube frame structure system
A technology of concrete-filled steel tube and concrete-filled steel tube columns, which is applied in the field of prefabricated concrete-filled steel tube frame structure systems, to achieve the effects of simple structure, clear transmission path, and reliable and effective node connection
Inactive Publication Date: 2020-12-22
CENT SOUTH UNIV
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Problems solved by technology
However, in practical applications, steel pipe concrete columns and composite beams (composed of steel beams and floor slabs) are usually used, and steel pipe concrete beams are still seldom used.
Method used
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Embodiment 1
[0020] like figure 1 , 2 As shown, a prefabricated CFST frame structure system includes a beam-column integral prefabricated node 1, a CFST beam 4 and a CFST column 5. The beam-column integral prefabricated node 1 includes a vertically arranged column connecting section and a horizontal The beam connecting section is laid, the beam connecting section and the column connecting section are integrally formed, the column connecting section and the beam connecting section are both composed of steel pipes, the beam connecting section is fixed on the column connecting section, and the steel pipe is filled with There is concrete, and the side of the column connecting section and the beam connecting section used for connecting with the concrete-filled steel tube beam-column is the connecting end. There are grouting holes reserved on the top, and the beam connecting section and the column connecting section are covered with fireproof board or brushed with fireproof paint, and the steel...
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The invention discloses an assembled concrete-filled steel tube frame structure system. Beam-column integral prefabricated joints comprise vertically-arranged column connecting sections and horizontally-arranged beam connecting sections, wherein the column connecting sections and the beam connecting sections are composed of steel tubes, and the beam connecting sections are fixed to the column connecting sections; the sides, used for being connected with concrete-filled steel tube beams and concrete-filled steel tube columns, of the column connecting sections and the beam connecting sections serve as connecting ends, the connecting ends of the column connecting sections and the beam connecting sections are hollow to form hollow tube sections used for lap joint, concrete is poured into the other parts of the column connecting sections and the beam connecting sections in advance, and grouting holes are reserved in the hollow tube sections; and the concrete-filled steel tube beams and theconcrete-filled steel tube columns are connected with the connecting ends of the beam connecting sections and the column connecting sections through welding, bolts or connecting pieces respectively, and after connection, concrete is poured into the hollow tube sections through the grouting holes to enable the concrete-filled steel tube beams and the concrete-filled steel tube columns to be connected and fastened to the beam connecting sections and the column connecting sections respectively. The device gives full play to the working characteristics of concrete-filled steel tubes, the bearing capacity and shock resistance of the beams and the columns are remarkably improved, and construction is easy and convenient so that the construction period can be greatly shortened.
Description
technical field [0001] The invention relates to a prefabricated steel tubular concrete frame structure system. Background technique [0002] Concrete-filled steel tubular structures in construction projects have been widely valued by the engineering community for their high bearing capacity, plasticity, good toughness, good economic effects and convenient construction. It has been widely used in the construction of multi-storey industrial workshop columns and achieved good construction results. However, in practical applications, CFST columns and composite beams are usually used (formed steel beams and floor slabs), and CFST beams are rarely used. Existing studies have shown that CFST flexural members have good flexural bearing capacity and ductility, and CFST has been used as a flexural member in railway bridge engineering. Therefore, it is very necessary to develop a new type of prefabricated CFST frame structure system with safe and reliable connections. SUMMARY OF TH...
Claims
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IPC IPC(8): E04B1/30E04B1/58
CPCE04B1/30E04B1/58
Inventor申永江艾曈普文磊
OwnerCENT SOUTH UNIV