When prestressing tendons are placed with non-equal prestressing forces, restoring forces(torsional moment and bimoment) are occurred. Restoring forces was derived based on the theorem of virtual work for the purpose of controlling the torsional rotation. Numerical analysis was carried out on the existing double-T beam to clarify that the torsional rotation could be controlled by restoring forces.

• 정종현(건국대학교 토목공학과, 박사과정) | Jeong, Jong-Hyun
• 박영성(건국대학교 토목공학과, 공학박사) | Park, Yeong-seong
• 김형주(㈜도화엔지니어링 사원, 공학석사) | Kim, Hyeng-Ju
• 이용학(건국대학교 토목공학과 교수, 공학박사) | Lee, Yong-Hak 교신저자