| 摘要: |
| 为清楚了解斜桩在地震中的性能,采用非线性有限元软件ABAQUS对全直桩码头和斜桩码头分别进行了弹塑性时程分析.全直桩码头为全部采用直桩的码头,有斜桩码头分2种情况,一种是1根直桩顶部另设置1对斜桩,其余直桩全部与全直桩码头相同,另一种是将直桩截面尺寸和配筋减小后设置1对斜桩使其荷载-变形特性与全直桩码头相近.研究表明,有斜桩码头的刚度较大,水平位移、直桩桩端弯矩和水平力均较小,但残余位移较大.当地震作用较强时,由于斜桩变形能力较差,混凝土容易压碎,丧失水平承载力.计算分析也同时表明,近陆侧直桩比斜桩承受更大的地震弯矩和水平侧向力. |
| 关键词: 高桩码头 抗震 弹塑性时程分析 斜桩 |
| DOI： |
| 分类号:U656.113 U442.55 |
| 基金项目:国家自然科学基金重大研究计划重点资助项目 |
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| Nonlinear finite element analysis for seismic performance of wharf structures with and without batter piles attached |
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LI Ying,GONG Jin-xin
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LI Ying,GONG Jin-xin(Institute of Structural Engineering,Dalian University of Technology,Dalian 110624,China)
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| Abstract: |
| Recent experiences have demonstrated that earthquake-induced damage to wharf structure is highly susceptible to batter piles.In the United States,wharf structures without batter piles attached are commonly constructed in seismically active regions,however,batter piles are still being advocated in new wharf designs in China.In order to better understand seismic performance of batter piles,elastic-plastic time history analysis is implemented for two cases using ABAQUS.The first case analysis is carried out wi... |
| Key words: wharf structure earthquake resistance nonlinear time history analysis batter piles |
