引用本文:刘芸芸,贡金鑫.无波浪力重力式码头稳定性可靠指标的简化计算[J].水利水运工程学报,2013,(6):36-46
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无波浪力重力式码头稳定性可靠指标的简化计算
刘芸芸, 贡金鑫
大连理工大学 土木工程学院
摘要:
研究了无波浪力情况下重力式码头的抗滑、抗倾稳定性可靠指标的简化计算方法和简化设计方法.通过Monte-Carlo模拟和统计分析,确定了重力式码头抗滑、抗倾稳定性计算中抗力和荷载效应的统计参数和概率分布;提出了抗滑、抗倾稳定性可靠指标的简化计算方法和计算式,并根据11个方块码头、8个扶壁码头和25个沉箱码头的JC法可靠指标计算结果分析确定了简化计算式和简化设计式的系数.研究表明,同类型重力式码头抗滑、抗倾稳定性计算中抗力和荷载效应的均值系数和变异系数基本为常数;采用简化式计算的重力式码头抗滑、抗倾稳定性可靠指标与JC法的计算结果非常接近.
关键词:  重力式码头  稳定性  可靠指标  简化计算  设计方法
DOI:
分类号:U656.1+11
基金项目:交通运输部西部交通建设科技项目(2011 328 823 1510)
Simplified methods for reliability index calculation of gravity quay stability without wave force
LIU Yun-yun, GONG Jin-xin
Department of Civil Engineering, Dalian University of Technology
Abstract:
The simplified methods for reliability index calculation and design of the gravity quay against sliding and overturning without wave force is investigated in the study. Probabilistic distribution and statistical parameters of the load and resistance regarding sliding and overturning are established through Monte-Carlo simulation and statistical analysis; and the simplified methods and expressions for the reliability index calculation of the gravity quay against sliding and overturning are put forward. Coefficients in the simplified reliability index expressions are determined through reliability analysis of 11 block quays, 8 buttressed quays and 25 caisson quays using JC method. The research results indicate that for the same type of the gravity quay, the bias and variation coefficients of the load effects and resistances for sliding and overturning are approximately identical. The results of reliability index obtained by simplified expressions are very close to the results obtained by JC method.
Key words:  gravity quay  stability  reliability index  simplified method  design method
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