Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
UHPC (Ultra High Performance Concrete) connected post-tensioned unbonded co-tensioned prefabricated prestressed concrete frame structure system and design and construction method thereof
The invention discloses a post-tensioned unbonded co-tensioned prefabricated prestressed concrete frame structure system connected by UHPC (Ultra High Performance Concrete). The post-tensioned unbonded co-tensioned prefabricated prestressed concrete frame structure system comprises a prefabricated concrete upper column, a prefabricated concrete lower column, a post-tensioned unbonded co-tensioned prefabricated prestressed concrete superposed beam, a UHPC node core area and a superposed plate. The structural system is convenient and rapid in site construction, improves the component installation efficiency, can greatly reduce the anchoring length of the steel bars, greatly reduce the use amount of stirrups in a joint core area, avoid crowding of the steel bars in the joint core area, reduce the section height of the components, reduce the self weight, and improve the anti-cracking performance and the self-recovery performance of the components; therefore, the anti-seismic performance of the whole frame structure is improved. The pre-tensioned prestressed tendons enable the precast beams to be less or free of support during construction, the construction cost is reduced, the post-tensioned unbonded structure can enhance the integrity of the frame, so that the structure has certain self-resetting capability and structural toughness in an earthquake, and the post-earthquake repair cost is reduced.
本发明公开了一种UHPC连接的后张无粘结的共张预制预应力混凝土框架结构体系，包括预制混凝土上柱、预制混凝土下柱、后张无粘结的共张预制预应力混凝土叠合梁、UHPC节点核心区和叠合板。该结构体系不仅现场施工方便快速、提高构件安装效率，而且既能大幅度减少钢筋锚固长度，大幅减少节点核心区箍筋用量，避免节点核心区钢筋拥挤，又能减小构件截面高度，减轻自重、提高构件抗裂性能和自恢复性能，从而改善整体框架结构的抗震性能。先张预应力筋使得预制梁在施工时可少支撑或免支撑，降低施工成本，后张无粘结可增强框架整体性，使得结构在地震中具备一定自复位能力和结构韧性，减少震后修复成本。
UHPC (Ultra High Performance Concrete) connected post-tensioned unbonded co-tensioned prefabricated prestressed concrete frame structure system and design and construction method thereof
The invention discloses a post-tensioned unbonded co-tensioned prefabricated prestressed concrete frame structure system connected by UHPC (Ultra High Performance Concrete). The post-tensioned unbonded co-tensioned prefabricated prestressed concrete frame structure system comprises a prefabricated concrete upper column, a prefabricated concrete lower column, a post-tensioned unbonded co-tensioned prefabricated prestressed concrete superposed beam, a UHPC node core area and a superposed plate. The structural system is convenient and rapid in site construction, improves the component installation efficiency, can greatly reduce the anchoring length of the steel bars, greatly reduce the use amount of stirrups in a joint core area, avoid crowding of the steel bars in the joint core area, reduce the section height of the components, reduce the self weight, and improve the anti-cracking performance and the self-recovery performance of the components; therefore, the anti-seismic performance of the whole frame structure is improved. The pre-tensioned prestressed tendons enable the precast beams to be less or free of support during construction, the construction cost is reduced, the post-tensioned unbonded structure can enhance the integrity of the frame, so that the structure has certain self-resetting capability and structural toughness in an earthquake, and the post-earthquake repair cost is reduced.
本发明公开了一种UHPC连接的后张无粘结的共张预制预应力混凝土框架结构体系，包括预制混凝土上柱、预制混凝土下柱、后张无粘结的共张预制预应力混凝土叠合梁、UHPC节点核心区和叠合板。该结构体系不仅现场施工方便快速、提高构件安装效率，而且既能大幅度减少钢筋锚固长度，大幅减少节点核心区箍筋用量，避免节点核心区钢筋拥挤，又能减小构件截面高度，减轻自重、提高构件抗裂性能和自恢复性能，从而改善整体框架结构的抗震性能。先张预应力筋使得预制梁在施工时可少支撑或免支撑，降低施工成本，后张无粘结可增强框架整体性，使得结构在地震中具备一定自复位能力和结构韧性，减少震后修复成本。
UHPC (Ultra High Performance Concrete) connected post-tensioned unbonded co-tensioned prefabricated prestressed concrete frame structure system and design and construction method thereof
一种UHPC连接的后张无粘结的共张预制预应力混凝土框架结构体系及其设计、施工方法
XIONG XUEYU (Autor:in) / FENG CHUANSHAN (Autor:in) / SHEN TUFU (Autor:in) / LIU JU (Autor:in) / XIE YIFAN (Autor:in)
30.12.2022
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022