基于欧洲规范的结合梁截面可靠度校验

Reliability Calibration ofComposite Beam Section Based on European Standard

摘要: 以可靠度指标β=4. 7为目标,研究结合梁截面在承载能力极限状态下应该具有的安全系数;并对根据欧洲规范EC 4(Euro code 4)设计的结合梁截面进行可靠度校验,获得结合梁截面实际具有的安全系数.比较二者,认为在现行EC 4分项安全系数的基础上需要一个附加安全系数,这样才能保证所设计的结合梁截面达到欧洲规范EC 1(Euro code 1)要求的可靠度.
- 结合梁截面 /
- 可靠度校验 /
- 欧洲规范 /
- 安全系数
Abstract: The necessary safety factor ofcomposite beam section in an ultimate limitstate (ULS) was investigated for the goal reliability indexβ= 4. 7. A composite beam section designed according to European standard EC 4 (Euro code 4) was calibrated and its actual safety factor in the ultimate limit statewas obtained. Comparison between the necessary safety factor and the actual safety factor shows that an additional safety factor is necessary for a composite beam section to ensure the reliability level demanded byEuropean standard EC 1 (Euro code 1).
- composite beam section /
- reliability calibration /
- European standard /
- safety factor

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