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Precast steel pipe concrete laminated column

A technology of steel tube concrete and laminated columns, which is applied in the direction of columns, pier columns, pillars, etc., can solve the problems of environmental pollution, construction noise, inability of concrete and surrounding concrete to bear force and deformation coordination, and long construction time of cast-in-place concrete. Small impact on the environment, beneficial to environmental protection, and superior seismic performance

Active Publication Date: 2017-10-20
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, the present invention provides a prefabricated concrete-filled steel tube composite column, which effectively solves the problems that the high-strength steel tube concrete and the surrounding concrete cannot be jointly stressed and deformed, and the construction time of cast-in-place concrete is long and pollutes the environment. and construction noise

Method used

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  • Precast steel pipe concrete laminated column
  • Precast steel pipe concrete laminated column
  • Precast steel pipe concrete laminated column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Such as figure 1As shown, a prefabricated steel tube concrete composite column includes a foundation and a plurality of steel tube concrete segments, and the multiple steel tube concrete segments include a bottom segment, a top segment and one or more intermediate segments of steel tube concrete Segments, each CFST segment includes a lower steel plate, a CFST main body, and an upper steel plate that are fixedly connected sequentially from bottom to top. Concrete is injected inside, and the upper and lower steel plates between the bottom segment and the middle segment and between the middle segment and the top segment are respectively provided with connecting anchor bolts or connecting holes so that the adjacent upper and lower steel plates The connection is fixed by means of connecting anchor bolts. The upper steel plate is provided with pouring holes at the positions corresponding to the top openings of the steel pipes. The pouring holes are used to pour concrete when ...

Embodiment 2

[0086] In this embodiment, on the basis of Embodiment 1, the shear connector is designed as a steel plate with holes, and the steel plate with holes is a strip-shaped steel plate 29, such as Figure 10 As shown, the strip-shaped steel plate 29 is provided with through holes 24 at equal intervals. The setting of the through hole 24 is beneficial to strengthen the connection between the shear connector and the concrete, and improve the ability of working together and coordinating deformation. Such as Figure 11 As shown, the shear connector 15 is configured as a strip-shaped steel plate 29 that can be welded vertically inside and outside the steel pipe 19 . Different strip-shaped steel plates 29 are arranged parallel to each other and arranged at intervals inside and outside the steel pipe 19 . Further, steel bars can be arranged in the holes for a better connection. Specifically, steel bars are penetrated in the through holes of the perforated steel plates at the same horizont...

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Abstract

The invention relates to a precast steel pipe concrete laminated column comprising a foundation and a plurality of steel pipe concrete segments. The steel pipe concrete segments comprise the bottom segment, the top segment and one or more intermediate segments. Each steel pipe concrete segment comprises a lower steel plate, a steel pipe concrete main body and an upper steel plate which are fixedly connected in sequence. The bottom segment and the corresponding intermediate segment are fixedly connected through connecting anchor bolts, and the corresponding intermediate segment and the top segment are fixedly connected through connecting anchor bolts. Bottom anchor bolts are arranged on the upper surface of the foundation. The bottom segment is fixed to the foundation by means of connection of the lower steel plate of the bottom segment and the bottom anchor bolt. The precast steel pipe concrete laminated column has the characteristics of high bearing capacity, good anti-seismic performance and excellent durability and can be precast and manufactured in a factory or a different place in advance, the defect of complex procedures of traditional cast-in-situ concrete construction is avoided, and the precast steel pipe concrete laminated column has the advantages that the construction speed is high, the influence on the environment is small, the construction period is short, construction noise is low, material stacking sites are few, and environmental protection is facilitated.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a prefabricated steel tube concrete composite column. Background technique [0002] Modern civil engineering is developing in the direction of large scale, complex structure, and diversified functions, which promotes the development of high-strength concrete. At present, high-strength concrete structures with steel pipes are used, and high-strength concrete is restrained by steel pipes, which improves the brittleness of high-strength concrete. Improve the seismic capacity of the structure. In order to overcome the shortcomings of poor corrosion resistance and fire resistance of steel pipes, ordinary reinforced concrete is poured around the high-strength steel pipe concrete to form a composite structure of high-strength steel pipe high-strength concrete with reinforced concrete outside, but this structure cannot guarantee the high-strength steel pipe high-strength concre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58E04B1/30E04C3/34
CPCE04B1/185E04B1/30E04C3/34
Inventor 王连广陈百玲张海伏崔世龙冯立柱邱昱
Owner NORTHEASTERN UNIV
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