Limit States Design—A Probabilistic Study
Limit States Design—A Probabilistic Study
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极限状态设计——概率研究
DOI：
10.1139/l75-004
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发表时间：
1975
期刊：
影响因子：
--
通讯作者：
D. E. Allen
中科院分区：
文献类型：
--
作者：
D. E. Allen
加拿大的建筑物结构标准正在朝着统一的极限状态理念发展，为所有材料和类型的建筑提供共同的安全性和适用性标准。到 1975 年，结构钢和冷成型钢将具有极限状态设计规则，随后混凝土、砖石和木材也将遵循。本文根据简化理论计算的失效概率，将新规则与现有 NBC/CSA 要求进行比较。主要重点是办公楼和住宅建筑的静荷载、地面荷载和风荷载的荷载组合，这些建筑会因钢材屈服而发生失效。新极限状态设计规则的其他方面——结构钢的柱公式、组合结构的性能因素、反映失效严重程度的重要因素以及施工过程中的安全因素也被考虑在内。结果表明，对于不同的荷载和材料组合，新规则比现有规则提供了更一致的安全性；和 ...
Canadian structural standards for buildings are moving toward a unified limit states philosophy with common safety and serviceability criteria for all materials and types of construction. Structural steel and cold formed steel will have limit states design rules by 1975 and concrete, masonry, and wood will follow later.This paper compares the new rules with existing NBC/CSA requirements on the basis of probability of failure calculated by simplified theory. The main emphasis is on load combinations of dead, floor, and wind loads for office and residential buildings where failure occurs by yielding of steel. Other aspects of the new limit states design rules—column formula for structural steel, performance factors for composite structures, the importance factor which reflects the seriousness of failure, and safety factors during construction, are also considered.The results indicate that the new rules provide more consistent safety than existing rules for different combinations of loads and materials; and ...