Behaviour Characteristic of Grid Dome Shaped Space Structures by Post-tensioning

J. Ocean Eng. Technol. 2002;16(1):41-45.

포스트텐션에 의한 격자 돔형 공간 구조의 거동 특성

김진우

경상대학교 토목환경공학부 해양산업연구소

Keywords: Ultimate Load Test, Dome, Nonlinear Analysis, Post-Tension, Space Structure

핵심용어: 극한하중시험, 돔, 비선형해석, 포스트텐션, 공간구조

Abstract

This paper is concerned with the erection and ultimate load test of dome shaped space structures by post-tensioning. It is a fast and economical method for constructing such a dome by post-tensioning of the cable in bottom chords. This structure consists of uniform pyramids in a flat layouts on the ground, and then the structure is shaped and erected into its final curved space structure. Ultimate load test was performed for dome shaped space structures. The feasibility of the proposed erection method and the reliability of the established geometric model were confirmed with numerical analysis and experimental investigation on a small scale steel model. As a results we can find the most reasonable modeling technique for the prediction of shape formation in practices and we can know the characteristic of the behaviour in ultimate load test for practical design purposes.