Seismic Damage Performance Control Design And Intelligent Optimal Design Based On Energy Analysis

In this paper, a new method of performance-based seismic design, energy analysis method is proposed firstly by taking into account the merit and fault of methods of aseismic design in current code and performance-based seismic design. A seismic damage model based on tow-parameter linear combination is presented secondly according to the reasonable define of seismic damage index suggested in reference [18] and seismic damage models that had been developed by scholars in home and abroad. Thirdly, seismic damage performance control design based on energy analysis is developed in terms of the seismic damage model and the three-level seismic damage performance objectives suggested in the reference [48]. The validity, accuracy of the design method are verified by an example.Finally, a method of intelligent optimal design based on seismic damage performance and energy analysis which is realized by an improved genetics algorithm with discrete variables is put forward on the base of the performance-based seismic design developed in this paper and the synthesis-check design model. The programs of genetics algorithms and the improved genetics algorithm are developed with C. Putting some basic parameters of earthquake and other design data in the intelligent optimal design's program, the analysis results of lateral stiffiiess (sectional dimension of members), sectional reinforcement of members and structural inner forces will be gotten. The validity and accurate of the intelligent optimum design and the program of optimum are also shown by a design example.