Reliability-based capacity design for reinforced concrete bridge structures
Reliability-based capacity design for reinforced concrete bridge structures
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DOI：
10.1080/15732479.2010.507707
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发表时间：
2010-08
影响因子：
3.7
通讯作者：
M. Akiyama;H. Matsuzaki;H. Dang;Motoyuki Suzuki
中科院分区：
文献类型：
--
作者：
M. Akiyama;H. Matsuzaki;H. Dang;Motoyuki Suzuki
钢筋混凝土桥梁结构的抗震设计中，构件不应出现剪切破坏等脆性破坏，桥墩底部应形成塑性铰。这些是保证桥梁在强震下安全的能力设计的重要概念。这些概念可以最大限度地提高事后可操作性，并最大限度地降低严重地震后修复桥梁的成本。本文提出了一种基于可靠性的方法来进行部分因素的能力设计，并将其应用于钢筋混凝土桥梁结构的抗震设计。这确保了（i）所有组件都经历所需的延性破坏模式，（ii）仅在桥墩底部引起地震造成的损坏，以及（iii）破坏概率最多等于指定值。
In the seismic design of reinforced concrete (RC) bridge structures, there should be no brittle failures, such as shear failures, in the components, and a plastic hinge should be formed at the bottom of the bridge pier. These are important concepts in capacity design to guarantee the safety of bridges subjected to severe earthquakes. These concepts can maximise post-event operability and minimise the cost of repairing bridges after a severe earthquake. In this article, a reliability-based methodology to carry out capacity design with partial factors is proposed and applied to the seismic design of RC bridge structures. This ensures that (i) all of the components undergo the desired ductile failure mode, (ii) the damage due to an earthquake is induced only at the bottom of the bridge pier and (iii) the probability of failure is at most equal to a specified value.