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Steel pipe concrete frame with prestressing tendons and construction method thereof

A technology of concrete filled steel tubes and prestressed tendons, which is applied in the direction of load-bearing elongated structural components, structural elements, building components, etc., can solve the problems of complex beam-column connection nodes, difficult positioning of prestressed tendons, and easy damage. To achieve the effect of reducing the deformation of the beam, the span is large, and it is not easy to damage and corrode

Active Publication Date: 2017-06-20
广西万纵建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] An object of the present invention is to provide the concrete-filled steel tube frame that joins prestressed tendon, and this steel tube concrete frame that joins prestressed tendon is used to solve the problem that the beam-column connection node of the new type frame of steel pipe concrete with prestressed tendon is complex and easy to break, and at the same time It solves the thorny problem of difficult positioning of prestressed tendons in closed steel pipes. Another object of the present invention is to provide a construction method for such a steel pipe concrete frame equipped with prestressed tendons

Method used

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  • Steel pipe concrete frame with prestressing tendons and construction method thereof
  • Steel pipe concrete frame with prestressing tendons and construction method thereof
  • Steel pipe concrete frame with prestressing tendons and construction method thereof

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Embodiment Construction

[0043] Below in conjunction with accompanying drawing, the present invention will be further described:

[0044] combine figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 13 As shown, this CFST frame with prestressed tendons is composed of composite columns 1 and composite beams 2 connected by joints 3, composite beams 2 are horizontally arranged between composite columns 1, and joints 3 are the jackets of internally filled self-compacting concrete 13 Integral joint; jacket Integral joint includes a joint outer tube with an upper connecting ring 4 and a lower connecting ring 5. Both the upper connecting ring 4 and the lower connecting ring 5 are provided with bolt holes 12, and the upper part of the joint outer tube 6 has an upper reinforcement The cavity ring plate 7 has a lower reinforced cavity ring plate 8 on the lower part, and the upper reinforced cavity ring plate 7 extends horizontally outward to ...

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Abstract

The invention relates to a steel pipe concrete frame with prestressing tendons and a construction method thereof. The steel pipe concrete frame with the prestressing tendons is formed by connecting composite columns with composite beams through joints. The composite beams are horizontally arranged among the composite columns. The joints are outer sleeving integral type joints internally filled with self-compacting concrete. The composite columns are sectional-type steel pipe concrete composite columns with built-in profile steel. The composite beams are internal-prestress I-shaped steel pipe concrete composite beams. The prestressing tendons arranged in the composite beams bypass joint outer pipes from upper strengthening annular plates with cavities. The prestressing tendons are positioned through single-hole positioning plates and hole-formed double-hole main positioning plates, form symmetrical curve shapes and achieve tensioning and anchoring at joint end beams. The self-compacting fine stone concrete of the composite beams and self-compacting fine stone concrete of the joint end beams are through and form a whole with the joint outer pipes after curing. The problem that beam-column connecting joints of a novel steel pipe concrete frame with prestressing tendons are complex and liable to damage is solved.

Description

technical field [0001] The invention relates to a building frame structure in the field of civil engineering structures, in particular to a steel pipe concrete frame equipped with prestressed tendons and a construction method thereof. Background technique [0002] In the conventional reinforced concrete frame structure system, the frame joints are mostly reinforced concrete cast-in-place joints. This kind of reinforced concrete joints needs formwork, binding steel bars and then pouring concrete like frame beams and columns. Not only the bearing capacity of the components is low, but the construction period is long. Moreover, the nodes are prone to damage under the action of earthquakes. With the rapid development of the civil construction industry, steel tube concrete structures are widely used in long-span, heavy-duty and super high buildings. The steel tube concrete frame with prestressed tendons is a new structural form of steel tube concrete structures. The concrete-fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/18E04B1/30E04B1/58E04C3/293
CPCE04B1/18E04B1/185E04B1/30E04C3/293
Inventor 计静张文福郝进锋张云峰袁朝庆陈晓坤
Owner 广西万纵建设工程有限公司
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