Most of the structural forms in which ETFE film is used are the cushion(pneumatic membrane structures) and tension type(tensile membrane structures), which have been generally accepted to be the most efficient forms. Tensile membrane structures are pulled outward from the exterior to introduce initial stress. And such structures offer the advantage of a natural shape formed by tensile stress and eliminate the need for blast air. Recently, the number of tension type structures is increasing. However, there are problems of creep and relaxation of ETFE films under long-term stresses. In this paper, the stretch fabrication method is proposed for stretching the film into the plastic region during initial tensioning as a way to increase its strength. And its effectiveness is confirmed by investigating experimental and analytical test using ETFE films.

 Abstract  1. 서 론  2. ETFE필름의 연신성형   2.1 연신성형의 개요   2.2 ETFE필름의 연신범위  3. ETFE필름의 연신성형 실험   3.1 실험개요   3.2 실험결과  4. 연신성형실험의 해석적 검토   4.1 해석개요   4.2 해석결과  5. 결 론  감사의 글  References

• 정을석(세명대학교 건축공학과 박사후연구원, 공학박사) | Jeong, Eul-Seok
• 河端昌也( 요코하마국립대학 건축도시문화전공, 준교수, 공학박사) | 카와바타 마사야
• 김승덕( 종신회원, 세명대학교 건축공학과 교수, 공학박사) | 김승덕