高墩或水中墩T梁、空心板梁更换支座装配式简易施工挂篮搭设技术研究
고돈혹수중돈T량、공심판량경환지좌장배식간역시공괘람탑설기술연구
High-water pier or pier T beams, hollow plate beams replacing standoffs assembly type construction hanging basket technology research section