新型箱肋式重力码头结构力学特性分析及稳定性优化研究

Study on structural mechanical characteristics and stability optimization of a new box-ribbed gravity wharf

新型箱肋式重力码头由前部的沉箱和后部的扶壁肋板所组成,结合了扶壁式码头结构的特点,是对传统重力沉箱码头结构的一种优化改进。文章依托实际码头工程,利用ABAQUS建立新型箱肋重力式码头结构三维数值模型,分析了新型结构的前后面板、底板、箱格肋板和扶壁肋板的应力分布规律,对前后面板和底板的弯矩进行了简化计算,并对新型箱肋式重力码头结构进行稳定性分析,通过改变沉箱仓格和扶壁肋板比例、卸荷板悬臂长度、抗滑键进行了稳定性优化。

The new box-ribbed gravity wharf is composed of the front caisson and the rear buttress rib,which is an optimization and improvement of the traditional gravity caisson wharf by combining the characteristics of buttress wharf structure.Based on actual wharf engineering,a three-dimensional numerical model was established used ABAQUS for the new box-ribbed gravity wharf structure in this paper.The stress distribution law of the front and rear panel,floor and floor box lattice of the new structure and buttress ribbed plates were analyzed,and the calculation of the bending moment of front and back panel and bottom panel were simplified.The stability of the new box-ribbed gravity wharf was also analyzed.The stability of caisson was optimized by changing the proportion of caisson silo and buttress ribs,cantilever length of unloading plate and anti-slide tie.