配有RPC预制管混凝土组合柱的RC框架抗震性能分析<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.023.012

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Abstract An innovative column, named concrete-filled precast RPC tubular column, was presented in this paper. In this composite column, concrete was casted into precast RPC tube and steel bar were arranged in both concrete filled inside and precast RPC tube. Using the assumption of plane section, the formulas on bearing capacity was obtained for this column with large eccentricity compression based on the prescribed constitutive laws of RPC, concrete and steel. Bearing capacity analysis was performed for the columns with 2 different sections by the obtained formulas and the Opensees fiber model, respectively. The capacity results obtained by these two methods were closed to each other. Considering variations of parameters: the ratio of column bearing capacity to beam bearing capacity and steel grade arranged in precast RPC tube, seismic performance of RC frames with the columns was also analyzed by the Opensees fiber model. It showed that: the energy dissipation and ductility can be improved dramatically with the steel grade equal to or higher than HRB400 arranged in precast RPC tube; with the increase of the ratio of column bea-ring capacity to beam bearing capacity, the seismic performance can be improved minorly when the ratio not larger than 1.2, but can be improved dramatically when the ratio equal to or larger than 1.5.

Key words： concrete-filled precast RPC tubular columns RC frames bearing capacity hysterisis analysis Opensees seismic performance

Published: 10 December 2017 Online: 2018-05-08

CLC number:

TU398.9

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	Articles by authors
	JIANG Youbao
	WU Linhua
	CHEN Zhimao

Cite this article:

JIANG Youbao,WU Linhua,CHEN Zhimao. Seismic Performance Analysis for RC Frames with Concrete-filled Precast RPC Tubular Columns[J]. Materials Reports, 2017, 31(23): 90-95.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.023.012 OR https://www.mater-rep.com/EN/Y2017/V31/I23/90

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