| 典型受火方式下等肢T形柱的耐火性能 |
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| 引用本文： | 徐玉野,王全凤,邱政和.典型受火方式下等肢T形柱的耐火性能[J].华侨大学学报(自然科学版),2010,31(2). |
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| 作者姓名： | 徐玉野 王全凤 邱政和 |
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| 作者单位： | 华侨大学,土木工程学院,福建,泉州,362021 |
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| 基金项目： | 国家自然科学基金资助项目(50908091);;福建省青年科技人才创新项目(2007F3064);;华侨大学科研基金资助项目(07BS405) |
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| 摘 要： | 利用高温下钢筋混凝土柱基于虚梁法的数值模拟程序RCSSCF,分析轴压比、计算长度、截面尺寸、荷载偏心率、配筋率和荷载角等参数对ISO 834标准升温过程下典型受火方式钢筋混凝土T形柱耐火性能的影响规律.通过15 552种工况下T形柱的高温反应分析和计算,定量给出3种受火方式下钢筋混凝土T形柱耐火极限的实用计算方法.研究结果表明,严格控制轴压比是提高典型受火方式下T形柱耐火性能的有效措施;典型受火方式下,T形柱的耐火极限随计算长度的增加而线性减小;荷载角对典型受火方式下T形柱的耐火极限影响较大.
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| 关 键 词： | 等肢T形柱 耐火性能 T形截面 数值模拟 受火方式 |
Research on Fire Resistance Performances of T-Shaped Columns with Equal Legs Subjected to Typical Fire Exposure Cases |
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| XU Yu-ye,WANG Quan-feng,QIU Zheng-he.Research on Fire Resistance Performances of T-Shaped Columns with Equal Legs Subjected to Typical Fire Exposure Cases[J].Journal of Huaqiao University(Natural Science),2010,31(2). |
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| Authors: | XU Yu-ye WANG Quan-feng QIU Zheng-he |
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| Institution: | College of Civil Engineering;Huaqiao University;Quanzhou 362021;China |
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| Abstract: | Using the numerical program RCSSCF for the reinforced concrete column based on the conjugate beam method,the influence of various parameters on the fire resistance performances of T-shaped columns subjected to the ISO 834 standard fire with typical fire exposure cases is investigated,such as axial load ratio,effective length,sectional dimension,load eccentricity ratio,reinforcement ratio and load angle.The fire response of 15552 columns is analyzed.Based on the simulation results,a practical calculation met... |
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| Keywords: | T-shaped columns with equal legs reinforced concrete fire resistance T-shaped cross section numerical simulation fire exposure |
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