混凝土框架型人工鱼礁结构着底撞击力计算方法研究

Study on Calculation Method of Falling to the Bottom Impact Force of Concrete Frame Artificial Reef Structure

混凝土框架型人工鱼礁结构在投放过程中所造成的着底碰撞破坏往往是不可补救的,国内关于鱼礁撞击方面的计算也主要参照20世纪70年代日本的《水产土木工程》中的研究成果以及国外的其他工程案例。因此,在设计阶段防止混凝土人工鱼礁发生撞击破坏是提高布放质量的有效途径。分别根据能量法、计算结构动力学方法、运动学方法对混凝土框架型人工鱼礁着底撞击力计算方法进行研究,并分析其特点和适用条件。研究结论为开展混凝土鱼礁碰撞动力分析、防撞设计方法研究,以及对减少损失、优化完善鱼礁设计具有现实意义。

The impact damage of falling to the bottom impact damage caused by concrete frame artificial reef structure is often irreparable.The calculation of fish reef impact in China mainly refers to the research results in Japan′s aquatic civil engineering in the 1970s and other engineering cases abroad.Therefore,preventing the impact damage of concrete artificial reef in the design stage is an effective way to improve the layout quality.In this paper,the calculation method of falling to the bottom impact force of concrete frame artificial reef is studied according to energy method,structural dynamics method and kinematics method,and its characteristics and applicable conditions are analyzed.The research conclusion has practical significance for carrying out the dynamic analysis of concrete reef collision and the research on anti-collision design method,as well as for reducing losses and optimizing and perfecting reef design.