Load–impulse characterization for steel connection
Load–impulse characterization for steel connection
复制标题
钢连接的载荷-脉冲特性
DOI：
10.1016/j.ijimpeng.2008.09.005
复制
发表时间：
2009
影响因子：
5.1
通讯作者：
T. Krauthammer
中科院分区：
文献类型：
--
作者：
H. Yim;T. Krauthammer
爆炸或冲击产生的异常荷载可能会导致建筑物的局部破坏，并可能演变到影响整个结构体系。因此，必须设计结构，以防止这种不成比例的后果。在减轻此类后果方面，连接是结构钢系统延性和稳健性的重要因素。这项研究的目的是通过以荷载-冲量图的形式表征钢节点的抗力、极限强度和延性，从而更好地了解钢节点在高速荷载下的行为。将所建立的高应变率抗力特性应用于简化框架分析。然后通过比较详细模型和简化模型的结果，对该方法的准确性和成本效益进行了评估。
Abnormal loading generated by blast or impact may cause local damage in a building that may evolve to affect the whole structural system. Therefore, structures have to be designed to prevent such disproportional consequences. Connection is an important contributor to ductility and robustness of the structural steel systems in mitigating such consequences. The aim of this study was to derive a better understanding of how steel connections behave under high-speed loads by means of characterizing their resistance, ultimate strength, and ductility in the form of load–impulse diagrams. The established high-strain-rate resistance properties were applied into simplified frame analyses. The accuracy and cost-effectiveness of the approach were then evaluated comparing the results from detailed and simplified models.