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영어

This study, high-rise structure design of lateral loads, topics are slenderness ratio and stiffness. CTBUH said that high-rise structure is defined by slenderness ratio and later load resistance system. Selected analysis model is optimized by weight optimization method by taking the principle of virtual work. It's slenderness ratio is 5. Lateral load is proportional to structure's height. Stiffness method gives some analytical advantages to analysis the high-rise building rather than strength method. In generally analysis, lateral deflection controls structural limit state in the high-rise building design. And the lateral deflection can be easily find by stiffness method rather than strength method. We study for the weight optimization of the high-rise concrete structural model. We set up object function of weight and constraint function to obtain optimization member sizes. Because the lateral deformation constraint function can not be
simply defined between correlation with object function. So, use principal of virtual work for lateral deformation constraint function to clear correlation with object function. This thesis suppose the slenderness ratio and many assumption. As a results from this study, we easily find member sizes, and lateral deformation at the limit state and strength with minimum weight. By structural analysis of deduction member sizes, demonstrate validity and usefulness of high-rise concrete structure optimization. Results of this thesis are as follows. First, Stiffness design is more effective than strength method. Cause, Strength method finds hard later deformation and takes more time than stiffness method. Enfin, Stiffness method is advantageous at High-rise structure design. Second, Existing constraint function isn't reflect geometrical shape for members. So, interaction between constraint and object function are indefinite. To solve this problem, We define between member shapes and lateral deformation to use principle of virtual work. In result, We find that it is relation of effect of lateral deformation and member shapes.