Nonlinear analysis model for performance-based seismic design of composite structural building structures
-
author : Architectural Institute of Korea (Building Standards Center)
published date : 2025.03.12
publisher : Architectural Institute of Korea (02-525-1849)
Jeong a: 60,000
book introduction
Performance-based seismic design for buildings was first introduced in the "Building Structure Standards" (KBC 2016) in 2016, and the relevant regulations were revised in 2019 with the enactment of the "Building Seismic Design Standards." Accordingly, performance-based seismic design is currently being applied to seismic design of many high-rise, large, and irregular buildings to ensure seismic safety, as well as high-rise apartment complexes. In addition, the performance-based approach is expanding to seismic performance evaluation and reinforcement design for existing buildings. Due to the increase in high-rise buildings and large spaces at home and abroad, the use of composite structures with higher efficiency than single structural materials is increasing, taking into account the demand for high strength and rigidity and constructability. However, the "Building Steel-Composite Structure Design Standards" (KDS 41 30 20) has limitations in accommodating various types and methods of rapidly developing composite structures, and the need for performance-based seismic design is gradually increasing. In order to perform performance-based seismic design and evaluation, nonlinear analysis of structures is required, and the application of reliable nonlinear analysis models is required. In the case of concrete structures, the Architectural Institute of Korea and the Korea Concrete Institute have recently jointly compiled a nonlinear analysis model newly developed by domestic researchers as “Nonlinear Analysis Model for Performance-based Seismic Design of Reinforced Concrete Building Structures.”
However, in the case of composite structures, there are no specific domestic or international standards or guidelines that present nonlinear analysis models and related regulations. Accordingly, the authors reflected such demands and presented a nonlinear modeling method for performance evaluation and a new analysis model based on numerous domestic and international experimental results and theoretical studies targeting composite structures widely used in Korea. This guideline is a guideline compiled by the Korean Building Standards Center under the Architectural Institute of Korea, and can be used for nonlinear analysis modeling for performance-based seismic design or seismic performance evaluation of composite structures or buildings containing composite structures and similar structures. An explanation was added to help practitioners understand nonlinear modeling, and an example for determining design variables of the analysis model was included in the appendix to expand practical applicability and provide convenience to users.
