Membrane structure is a system that is stabilized by maintaining a tensile state of the membrane material that originally cannot resist the bending or pressure. Also, it is a system that allows the whole membrane structure to bear external loads caused by wind or precipitation such as snow, rain and etc. Tension relaxation phenomenon can transpire to the tension that is introduced to the fabric over time, due to the innate characteristics of the membrane material. Thus, it is important to accurately understand the size of the membrane tension after the completion of the structures, for maintenance and management purposes. The authors of this paper developed the new portable measurement equipment by using sound wave and measured the tension of pre-existing membrane structure for its maintenance by using the equipment. Through analyzing the measurement data, the authors propose the points that should be improved and the technical method for the new maintenance system of membrane tension.

• 진상욱(한국기술교육대학교 디자인·건축학부 연구교수, 공학박사) | Jin Sang-Wook 교신저자
• 이승재(한국기술교육대학교 디자인·건축학부 교수, 공학박사) | Lee Seung-Jae