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Research on seismic behavior and shear strength of SRHC frame columns

ISSN号：1671-3664
期刊名称：《地震工程与工程振动：英文版》
时间：0
分类：P[天文地球]
作者机构：[1]Department of Civil Engineering, Xi'an University of Architecture and Technology, Xi' an 710055, China, [2]Department of Civil and Architecture Engineering, Xi' an University of Science and Technology, Xi' an 710054, China
相关基金：National Key Technology R＆D Program under Grant No. 2013BAJ08B00 and the Natural Science Foundation of China under Grant Nos. 50978218 and 51108376

作者： Zheng Shansuo[1], Qin Qing[1,2], Zhang Yixin[1], Zhang Liang[1], Yang Wei[1]

关键词： SRHC, 框架专栏, 地震行为, 韧性, 精力驱散, 轴的压缩比率, 砍忍受能力, SRHC flame columns, seismic behavior, ductility, energy dissipation, axial compression ratio, shear bearingcapacity

中文摘要：

钢的地震行为增强了高力量，高效水泥(SRHC ) 框架列通过 16 框架列的伪静电干扰实验被调查与各种各样砍跨度比率，轴的压缩比率，具体力量，钢比率和马镫比率。三种失败机制被介绍，有不同设计参数的试验性的 hysteretic 曲线和骨骼曲线的特征被讨论。列韧性和精力驱散是基于地震抵抗评估的份量上。研究结果显示 SRHC 框架列能承受韧性的极端适用的能力，而是能力，因为 SRHC 自然易碎物，精力驱散是劣等的。作为结果，轴的负担比率应该被限制，一些构造措施采用了，例如增加马镫比率。这研究在 SPHC 列的适用的能力上建立了效果因素。最后，为用曲折失败模式获得最终的适用的能力的一个算法基于一个修改飞机节假设被建立。作者也证实决定砍的 baroclinic 失败并且砍的方程结合失败基于轴的负担力量分发比率的累积。计算结果砍忍受能力因为不同失败模式在对试验性的结果的好同意。

英文摘要：

The seismic behavior of steel reinforced high strength and high performance concrete （SRHC） frame columns was investigated through pseudo-static experiments of 16 frame columns with various shear span ratios, axial compression ratios, concrete strengths, steel ratios and stirrup ratios. Three kinds of failure mechanisms are presented and the characteristics of experimental hysteretic curves and skeleton curves with different design parameters are discussed. The columns＇ ductility and energy dissipation were quantitatively evaluated based on seismic resistance. The research results indicate that SRHC frame columns can withstand extreme bearing capacity, but the abilities of ductility and energy dissipation are inferior because of SRHC＇s natural brittleness. As a result, the axial load ratio should be restricted and some construction measures adopted, such as increasing the stirrup ratio. This research established effect factors on the bearing capacity of SPHC columns. Finally, an algorithm for obtaining ultimate bearing capacity using the flexural failure mode is established based on a modified plane- section assumption. The authors also established equations to determine shearing baroclinic failure and shear bond failure based on the accumulation of the axial load force distribution ratio. The calculated results of shear bearing capacity for different failure modes were in good agreement with the experimental results.

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