型钢混凝土巨型柱的受力特点和性能分析研究

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• 英文论文题名：The mechanical characteristics and performance analysis on steel reinforced concrete giant columns
• 论文作者：颜家胜 ; 石建光 ; 王卫锋
• 英文论文作者：YAN Jiasheng ; SHI Jianguang ; WANG Weifeng ; School of Architecture and Civil Engineering ; Xiamen University
• 年：2016
• 作者机构：厦门大学建筑与土木工程学院;
• 论文关键词：SRC巨型柱 ; 非线性分析 ; 影响因素 ; 性能 ; 尺寸效应 ; 平截面假定
• 英文论文关键词：SRC giant column ; nonlinear analysis ; factors ; performance ; size effect ; plane assumption
• 会议召开时间：2016-10-27
• 会议录名称：第九届全国防震减灾工程学术研讨会论文集
• 语种：中文
• 分类号：TU398.9
• 学会代码：OGTY
• 会议名称：第九届全国防震减灾工程学术研讨会
• 会议地点：中国安徽合肥
• 主办单位：中国土木工程学会、中国工程院土木、水利与建筑工程学部、中国土木工程学会防震减灾工程技术推广委员会、合肥工业大学、安徽省住房和城乡建设厅
• 学会名称：中国土木工程学会
• 页数：11
• 文件大小：1434k
• 原文格式：O
• 会议级别：全国

摘要

运用ABAQUS软件对型钢混凝土(SRC)巨型柱进行了有限元非线性分析。分析表明:轴压比、混凝土强度、含钢率、剪跨比、配筋率、配箍率等参数对SRC巨型柱性能有不同程度的影响。轴压比的提高会使得峰值荷载下降1%~3%,峰值位移减小1%~3%;而混凝土强度等级的提高,使得峰值荷载提高约4%~5%,构件的延性下降3%~9%;截面含钢率增加,峰值荷载提高约15%,峰值位移增加约10%,延性提高6%~14%;但剪跨比增大,峰值荷载下降40%~70%,峰值位移增加1.6~2.9倍;配筋率影响很小;配箍率的增大有助于提高构件延性。巨型柱中混凝土尺寸效应的影响规律基本与本构的改变一致。剪跨比和塑性变形会影响平截面假定的成立。
Analyze the finite element models of SRC giant columns,using ABAQUS software.Analysis shows that:axial compression ratio,concrete strength,steel ratio,shear span ratio,reinforcement ratio,stirrup ratio and other parameters have varying degrees of impact on the SRC giant column performance.Axial compression ratio increasing will make the peak load decreased by 1% to 3%,and the peak displacement reduces by 1% to 3%;and with concrete strength increasing,the peak load increases by about 4% to 5%,and ductility of members decreases by about 3%~ 9%;with sectional steel ratio increasing,the peak load increases by about 15%,and the peak displacement increase by about 10%,and the ductility increases by about 6% to 14%.However,with shear span ratio increasing,the peak load drops by about 40% to 70%,and peak displacement increases by 1.6 to 2.9 times;reinforcement ratio has little effect;the increasing of stirrup ratio will help improve member ductility.The influence of the size effect of the giant concrete column is consistent with the change of the constitutive relations.Shear span ratio and plastic deformation will affect the plane assumption.

引文

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