标准火灾下胶合木梁柱螺栓节点的承载力设计方法
TU366.2; 为了研究木结构螺栓节点抗火性能设计方法,开展了胶合木结构梁柱钢填板螺栓节点的标准火灾试验,获得了节点在恒载下的耐火时间.基于梁柱螺栓节点抗火试验数据和近30年国内外不同类型的销轴类连接节点抗火试验数据建立了数据库,利用该数据库研究了持荷比与耐火时间关系公式,并用试验结果对公式的准确性进行对比分析.针对试验节点,提出了弯剪耦合下胶合木梁柱螺栓节点计算方法.研究表明,在已知持荷比下计算所得的节点理论耐火时间与试验结果较接近,且本试验节点的耐火时间理论值小于试验值,最大误差为-11.34％.这说明理论值偏保守,可为木结构节点抗火设计留有一定安全余量....
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| Published in | 东南大学学报（自然科学版） Vol. 54; no. 6; pp. 1472 - 1480 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
上海师范大学建筑工程学院,上海 201400
01.11.2024
同济大学土木工程学院,上海 200092%同济大学土木工程学院,上海 200092 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-0505 |
| DOI | 10.3969/j.issn.1001-0505.2024.06.016 |
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| Abstract | TU366.2; 为了研究木结构螺栓节点抗火性能设计方法,开展了胶合木结构梁柱钢填板螺栓节点的标准火灾试验,获得了节点在恒载下的耐火时间.基于梁柱螺栓节点抗火试验数据和近30年国内外不同类型的销轴类连接节点抗火试验数据建立了数据库,利用该数据库研究了持荷比与耐火时间关系公式,并用试验结果对公式的准确性进行对比分析.针对试验节点,提出了弯剪耦合下胶合木梁柱螺栓节点计算方法.研究表明,在已知持荷比下计算所得的节点理论耐火时间与试验结果较接近,且本试验节点的耐火时间理论值小于试验值,最大误差为-11.34％.这说明理论值偏保守,可为木结构节点抗火设计留有一定安全余量. |
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| AbstractList | TU366.2; 为了研究木结构螺栓节点抗火性能设计方法,开展了胶合木结构梁柱钢填板螺栓节点的标准火灾试验,获得了节点在恒载下的耐火时间.基于梁柱螺栓节点抗火试验数据和近30年国内外不同类型的销轴类连接节点抗火试验数据建立了数据库,利用该数据库研究了持荷比与耐火时间关系公式,并用试验结果对公式的准确性进行对比分析.针对试验节点,提出了弯剪耦合下胶合木梁柱螺栓节点计算方法.研究表明,在已知持荷比下计算所得的节点理论耐火时间与试验结果较接近,且本试验节点的耐火时间理论值小于试验值,最大误差为-11.34％.这说明理论值偏保守,可为木结构节点抗火设计留有一定安全余量. |
| Abstract_FL | To explore fire resistance design methods for bolted connections in timber structures,standard fire tests were conducted on glulam bolted beam-column connections with inserted-in steel plates,and the fire re-sistance time of the connections under constant load was obtained.A database was developed using fire test da-ta from beam-column bolted connections,as well as fire test data from various dowel-type connections gath-ered over the past 30 years worldwide.Based on this database,some formulas relating load ratio to fire resist-ance time were derived,and their accuracy was validated by comparing the theoretical results with experimen-tal data.Additionally,a method for calculating the fire resistance of glulam beam-column bolted connections under combined bending and shear was proposed.The findings indicate that,for a given load ratio,the calcu-lated theoretical fire resistance time closely aligns with the experimental results.The theoretical values are slightly lower than the experimental results,with a maximum error of-11.34％.The conservative nature of the theoretical results provides a safety margin for the fire resistance design of timber connections. |
| Author | 罗晶 郑修知 何敏娟 李征 |
| AuthorAffiliation | 上海师范大学建筑工程学院,上海 201400;同济大学土木工程学院,上海 200092%同济大学土木工程学院,上海 200092 |
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| Author_FL | Luo Jing Zheng Xiuzhi Li Zheng He Minjuan |
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| DocumentTitle_FL | Design method for the fire resistance of glulam bolted connections under standard fire exposure |
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| Keywords | 梁柱节点 fire resistance 抗火承载力 timber structures 计算方法 木结构 calculation methed beam to column connections |
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| PublicationTitle | 东南大学学报（自然科学版） |
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| Publisher | 上海师范大学建筑工程学院,上海 201400 同济大学土木工程学院,上海 200092%同济大学土木工程学院,上海 200092 |
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| Snippet | TU366.2; 为了研究木结构螺栓节点抗火性能设计方法,开展了胶合木结构梁柱钢填板螺栓节点的标准火灾试验,获得了节点在恒载下的耐火时间.基于梁柱螺栓节点抗火试验数据和... |
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| Title | 标准火灾下胶合木梁柱螺栓节点的承载力设计方法 |
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