복합구조물에 대한 비선형 약산법의 신뢰성 평가 = Evaluation for Reliability of Approximate Nonlinear Methods with Mixed Building Structures

다국어 초록 (Multilingual Abstract)

In performance-based seismic design, it is clear that the evaluation of the nonlinear response is required. One of the most accurate earthquake analysis method for the performance evaluation of structure is nonlinear response history analysis, but it is time-consuming and necessitate more efforts. Approximate methods are presented for estimating the capacity of structures while subjecting earthquake ground motions. This is made possible by exploiting the connection between the nonlinear static response of structure and the dynamic response of SDF system whose backbone matches the structure’s pushover curve. The nonlinear direct spectrum method(NDSM) and the uncoupled modal response history analysis(UMRHA) are proposed and studied to evaluate nonlinear response of structures, without iterative computations, given by the structural linear vibration period and yield strength from the pushover analysis. In this study, it is to compare the practicality and the reliability of approximate nonlinear methods with respect to mixed building structures and various earthquakes.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 비선형 약산법
• 2.1 비선형 모드중첩법(UMRHA)
• 2.2 비선형 직접스펙트럼법(NDSM)
• 3. 해석모델과 입력지진동
• 3.1 기본가정
• 3.2 해석모델
• 3.3 입력지진동
• 4. 해석결과 및 분석
• 4.1 최상층 변위비
• 4.2 층변위비와 층간변위비
• 5. 결론
• 참고문헌