한국공간구조학회지 제20권 제4호 (p.73-81)

대공간 구조물의 형상에 따른 TMD 최적 설계에 관한 연구 Part 1

A Study on the Optimal Design of TMD According to the Shape of Large Spatial Structures Part 1
키워드 :
Large spatial structure,Ribbed dome,Latticed dome,Elliptical dome,Tuned mass damper,Displacement response

목차

Abstract
1. 서론
2. 해석모델의 개요
3. 변위 응답 분석
   3.1 TMD 설치 개수 변화에 따른 응답 분석
   3.2 TMD 설치 위치 변화에 따른 응답 분석
4. 결론
References

초록

In this study, a tuned mass damper(TMD) was installed to control the displacement response to earthquakes by generalizing to six analysis models according to the shape of the upper structure based on the case of various large spatial structures around the world. The six analysis models are ribbed type, latticed type, elliptical type, gable type, barrel type, and stadium type composed of 3D arch trusses. In this paper, ribbed type, latticed type and elliptical type were analyzed. The mass of each TMD was set to 1% of the total structural mass. Result of analyzing the optimal number and position of the analysis model, the displacement response control was the most excellent in the model with 6 and 8 TMDs, and the displacement response decreased in most cases. The displacement response control was better with installing the TMD at the edge point than focusing the TMD at the center of the analysis model. However, when 10 or more TMDs are installed or concentrated in the center, large loads intensively act on the structure, resulting in increased displacement. Therefore, although it is slightly different depending on the shape, it is judged that the displacement response control is the best to install 6 and 8 TMDs at the close to the edge point.