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A platform for research: civil engineering, architecture and urbanism
Near-fault plate-truss combined rigid frame bridge
The invention relates to a near-fault plate-truss combined rigid frame bridge which comprises a main beam and a pier, the main beam is a deck type concrete plate-steel truss continuous combined beam, the main beam and the pier are in rigid connection through a pier-beam consolidation section, the main beam comprises a concrete bridge deck and at least two steel truss beams, each steel truss beam comprises an upper chord, a lower chord and a web member, and the upper chord is connected with the lower chord. The upper chord members are connected to the bottom face of the concrete bridge deck through a plurality of first stud shear keys, and the lower chord members close to the pier-beam consolidation sections are connected through the hogging moment area lower chord steel-concrete combination sections. According to the near-fault plate-truss combined rigid frame bridge, the structural form is novel, the vertical and transverse rigidity of the beam part can be remarkably improved, transverse connection and horizontal and longitudinal connection structures of the steel truss beam can be greatly reduced, the section of the main beam is more transparent, rod pieces of the steel truss beam are more convenient to erect and install, meanwhile, the self weight of the structure is reduced, and the anti-seismic property of the structure is improved; the method is particularly suitable for near-fault seismic zones and high-intensity seismic zones, and a solution is provided for the design of the continuous rigid frame bridge under the action of strong earthquakes.
本发明关于一种近断层板桁结合刚构桥，包括主梁和桥墩，主梁为上承式混凝土板‑钢桁连续结合梁，主梁与桥墩通过墩‑梁固结段刚性连接，主梁包括混凝土桥面板和至少两片钢桁梁，每片钢桁梁包括上弦杆、下弦杆和腹杆，上弦杆通过若干第一栓钉剪力键连接于混凝土桥面板底面，靠近墩‑梁固结段的下弦杆之间通过负弯矩区下弦钢‑混结合段连接。本发明的一种近断层板桁结合刚构桥，该桥的结构形式新颖，可显著提高梁部竖向、横向刚度，能够极大减少钢桁梁的横联、平纵联构造，使主梁断面更通透，钢桁梁的杆件架设安装更方便，同时减轻结构自重，提高结构抗震性能，尤其适用于近断层地震带、高烈度地震区，为强地震作用下连续刚构桥的设计带来解决方案。
Near-fault plate-truss combined rigid frame bridge
The invention relates to a near-fault plate-truss combined rigid frame bridge which comprises a main beam and a pier, the main beam is a deck type concrete plate-steel truss continuous combined beam, the main beam and the pier are in rigid connection through a pier-beam consolidation section, the main beam comprises a concrete bridge deck and at least two steel truss beams, each steel truss beam comprises an upper chord, a lower chord and a web member, and the upper chord is connected with the lower chord. The upper chord members are connected to the bottom face of the concrete bridge deck through a plurality of first stud shear keys, and the lower chord members close to the pier-beam consolidation sections are connected through the hogging moment area lower chord steel-concrete combination sections. According to the near-fault plate-truss combined rigid frame bridge, the structural form is novel, the vertical and transverse rigidity of the beam part can be remarkably improved, transverse connection and horizontal and longitudinal connection structures of the steel truss beam can be greatly reduced, the section of the main beam is more transparent, rod pieces of the steel truss beam are more convenient to erect and install, meanwhile, the self weight of the structure is reduced, and the anti-seismic property of the structure is improved; the method is particularly suitable for near-fault seismic zones and high-intensity seismic zones, and a solution is provided for the design of the continuous rigid frame bridge under the action of strong earthquakes.
本发明关于一种近断层板桁结合刚构桥，包括主梁和桥墩，主梁为上承式混凝土板‑钢桁连续结合梁，主梁与桥墩通过墩‑梁固结段刚性连接，主梁包括混凝土桥面板和至少两片钢桁梁，每片钢桁梁包括上弦杆、下弦杆和腹杆，上弦杆通过若干第一栓钉剪力键连接于混凝土桥面板底面，靠近墩‑梁固结段的下弦杆之间通过负弯矩区下弦钢‑混结合段连接。本发明的一种近断层板桁结合刚构桥，该桥的结构形式新颖，可显著提高梁部竖向、横向刚度，能够极大减少钢桁梁的横联、平纵联构造，使主梁断面更通透，钢桁梁的杆件架设安装更方便，同时减轻结构自重，提高结构抗震性能，尤其适用于近断层地震带、高烈度地震区，为强地震作用下连续刚构桥的设计带来解决方案。
Near-fault plate-truss combined rigid frame bridge
一种近断层板桁结合刚构桥
CHEN KEJIAN (author) / DAI SHENGYONG (author) / DENG YONGLING (author) / ZHANG YU (author) / CHEN TIANDI (author) / XU SHUO (author) / CHEN JIANFENG (author) / LI RUI (author) / TAN QINGQUAN (author) / LI CHUAN (author)
2023-06-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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