Inner tensioning prestressed concrete double-layer variable-cross-section panel box-shaped structure

• Main Authors: GONG JIANFEI, YU BIN, LIU MINGBAO, NIE YONGMING, QI HU, XU LING, ZHU SHENGLI, LE GUIPING, WU LINLIN, FENG DABIN, HU CHENGHE, REN ZHENGLU
• Format: Patent
• Language: Chinese; English
• Published: 02.01.2013
• Subjects: BUILDING; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; ROOFS; WALLS, e.g. PARTITIONS

The utility model relates to an inner tensioning prestressed concrete double-layer variable-cross-section panel box-shaped structure. A variable-cross-section panel is arranged in a direction parallel to the cross section, a double-layer box-shaped cross section is formed, the span range of the variable-cross-section panel is 7 to 36m, after annular prestressed ribs are arranged in a peripheral component, a parabola prestressed rib is arranged in the middle layer flat plate, tensioning grooves are preserved at the side surface of a component arranged inside the structure, after the concrete installation, all sections of one prestressed rib are sequentially connected in an end-to-end way and are tensioned at the tensioning groove parts through a middle anchor, and then, the tensioning grooves are sealed and blocked. The inner tensioning prestressed concrete double-layer variable-cross-section panel box-shaped structure is characterized in that the tensioning grooves are preserved at the side surface of the com