CAJ | 학술논문

在树状结构各种力学性能研究中，找形分析是十分重要的。在研究以往树状结构找形过程的基础上，以减小杆件内的单元弯矩为目的，提出将连续折线索单元应用于树状结构找形的方法，给出一般操作步骤，并通过试验对该方法进行验证。经过内力分析比较，得到该方法能够有效减小单元弯矩、结果较理想的结论，同时该方法具有操作简便、无需编程迭代、耗时较短的优势。对找形后的结果进行优化，可以进一步减小单元弯矩。分析分级节点位置变化对找形结果的影响，总结规律，为今后树状结构工程的设计应用提供了一定的参考。
재수상결구각충역학성능연구중，조형분석시십분중요적。재연구이왕수상결구조형과정적기출상，이감소간건내적단원만구위목적，제출장련속절선색단원응용우수상결구조형적방법，급출일반조작보취，병통과시험대해방법진행험증。경과내력분석비교，득도해방법능구유효감소단원만구、결과교이상적결론，동시해방법구유조작간편、무수편정질대、모시교단적우세。대조형후적결과진행우화，가이진일보감소단원만구。분석분급절점위치변화대조형결과적영향，총결규률，위금후수상결구공정적설계응용제공료일정적삼고。
Form-finding is very important in the researches on the mechanical behavior of tree structures. Based on the researches of other form-finding methods of tree structures,a new form-finding method was proposed. Sliding cable element was used for simulation in order to reduce element bending moments,the general steps were given, and then a test was carried out to verify the proposed method. The conclusion was drawn from the internal force com-parison that this method can effectively reduce element bending moments and the result is ideal. This method also shows such advantages as easy operation,no iteration or programming and very short consuming time. By optimizing the result with form-finding,this method can further reduce unit bending moments. By analyzing the effect of classi-fication joint position changes on the result of form-finding and summarizing the rule,this method has the signifi-cance in engineering applications and provides some references for the analysis and design of tree structures.