Wind-induced Response of High-pier Long-span Continuous Rigid Frame Bridge under the Longest Double Cantilever Erection Stage and Its Effect on Workers' Safety

机译：最长双悬臂安装阶段高墩大跨度连续刚构桥的风响应及其对工人安全的影响

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A three-dimension finite element model of high-pier long-span rigid frame bridge is presented in this paper. Based on this model, the gust-induced static response of the bridge under the longest cantilevered construction stage is computed. By comparing with those of two similar span rigid frame bridges with low piers, the gust-induced response characteristics of the internal force under the bottom of the piers of the high-pier long-span bridges are investigated, which is helpful for the safe design of bridges. The buffeting responses of the bridge under the longest cantilevered construction stage are also calculated in the time domain, taking accounting of the longitudinal and vertical turbulence action. Through the spectral analysis of the response, the comfort index of Diekemann is obtained. The effects of buffeting response on the workers' safety under the most unfavorable construction stage are discussed.

机译：提出了高墩大跨度刚构桥的三维有限元模型。基于该模型，计算了最长悬臂施工阶段的阵风引起的桥梁静响应。通过与两座低墩类似跨度的刚性框架桥的比较，研究了高墩大跨度桥墩底下内力的阵风诱发响应特性，为安全设计提供了帮助。的桥梁。还考虑了纵向和垂直湍流作用，在时域中计算了最长悬臂施工阶段桥梁的抖振响应。通过响应的频谱分析，获得了迪克曼的舒适指数。讨论了在最不利的施工阶段，抖振反应对工人安全的影响。

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来源
《International Symposium on Safety Science and Technology; 20061024-27; Changsha(CN)》|2006年|P.2304-2308|共5页
会议地点 Changsha(CN)
作者
SI Xuetong; GUO Wenhua;
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作者单位

School of Civil Engineering and Architecture, Central South University, Changsha 410075, Hu'nan, China;

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原文格式 PDF
正文语种 eng
中图分类安全工程;
关键词
bridge engineering; high-pier continuous rigid frame bridge; wind induced response; time domain analysis; spectral analysis: safety index;

机译：桥梁工程；高墩连续刚构桥；风感应响应；时域分析；光谱分析：安全指标;

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4. The Wind-induced Response of high-pier Long-span Continuous Rigid Frame Bridge [C] . J. W. Zhang International Conference on Advances in Civil Infrastructure Engineering . 2013

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5. Design and response of lower-level beam-column joints in ductile reinforced-concrete double-deck bridge frames. [D] . Mazzoni, Silvia. 1997

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7. Computer Modeling Analysis in Bridge Evaluation. Phase 2. Dynamic Response ofContinuous Beam Bridges and Slant-Legged Rigid Frame Bridges [R] . Wang, T. L., Huang, D. 1992

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Wind-induced Response of High-pier Long-span Continuous Rigid Frame Bridge under the Longest Double Cantilever Erection Stage and Its Effect on Workers' Safety

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