Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Railway large-span diagonal bracing rigid frame-arched concrete filled steel tube stiffening truss combined bridge
The invention discloses a large-span diagonal bracing rigid frame-arched concrete filled steel tube stiffening truss combined bridge for a railway. Further development of the large-span prestressed concrete continuous rigid frame is limited due to the problems that the dead weight of the large-span prestressed concrete continuous rigid frame is too large, girder midspan deflection is caused, and a girder body cracks. The device comprises a diagonal bracing rigid frame beam and an arched concrete filled steel tube stiffening girder arranged above a main span; the lower ends of the inclined struts are connected with the pier stand columns, and the upper ends of the inclined struts are connected with the upper chord beam section; the inclined struts, the upper chord and the upright posts form a triangular area; after the upper chord and the inclined strut are converged, a solid web girder section is formed; the arched concrete-filled steel tube stiffening truss comprises an arched concrete-filled steel tube upper chord arranged in the longitudinal direction of the diagonal bracing rigid frame beam, and web members and vertical rods are arranged between the upper chord and the rigid frame beam. Through the supporting effect of the inclined struts and the stiffening effect of the arched concrete filled steel tube stiffening trusses above the main span box girders, the rigidity of the bridge is effectively improved, and the spanning capacity is improved.
本发明公开了一种铁路大跨斜撑刚构‑拱形钢管混凝土加劲桁组合桥梁。大跨度预应力混凝土连续刚构自重过大、主梁跨中下挠和梁体开裂等问题，限制其进一步发展。本发明包括斜撑刚构梁和主跨上方设置的拱形钢管混凝土加劲桁；斜撑刚构梁在中支点两侧设置斜撑，斜撑下端与桥墩立柱连接，上端与上弦梁段连接；斜撑与上弦、立柱构成三角区；上弦与斜撑汇合后，为实腹梁段；拱形钢管混凝土加劲桁包括沿斜撑刚构梁纵向设置的拱形钢管混凝土上弦，上弦与刚构梁之间设腹杆和竖杆。本发明通过斜撑的支撑作用，主跨箱梁上方拱形钢管混凝土加劲桁的加劲作用，有效的增大了桥梁刚度，提高跨越能力。
Railway large-span diagonal bracing rigid frame-arched concrete filled steel tube stiffening truss combined bridge
The invention discloses a large-span diagonal bracing rigid frame-arched concrete filled steel tube stiffening truss combined bridge for a railway. Further development of the large-span prestressed concrete continuous rigid frame is limited due to the problems that the dead weight of the large-span prestressed concrete continuous rigid frame is too large, girder midspan deflection is caused, and a girder body cracks. The device comprises a diagonal bracing rigid frame beam and an arched concrete filled steel tube stiffening girder arranged above a main span; the lower ends of the inclined struts are connected with the pier stand columns, and the upper ends of the inclined struts are connected with the upper chord beam section; the inclined struts, the upper chord and the upright posts form a triangular area; after the upper chord and the inclined strut are converged, a solid web girder section is formed; the arched concrete-filled steel tube stiffening truss comprises an arched concrete-filled steel tube upper chord arranged in the longitudinal direction of the diagonal bracing rigid frame beam, and web members and vertical rods are arranged between the upper chord and the rigid frame beam. Through the supporting effect of the inclined struts and the stiffening effect of the arched concrete filled steel tube stiffening trusses above the main span box girders, the rigidity of the bridge is effectively improved, and the spanning capacity is improved.
本发明公开了一种铁路大跨斜撑刚构‑拱形钢管混凝土加劲桁组合桥梁。大跨度预应力混凝土连续刚构自重过大、主梁跨中下挠和梁体开裂等问题，限制其进一步发展。本发明包括斜撑刚构梁和主跨上方设置的拱形钢管混凝土加劲桁；斜撑刚构梁在中支点两侧设置斜撑，斜撑下端与桥墩立柱连接，上端与上弦梁段连接；斜撑与上弦、立柱构成三角区；上弦与斜撑汇合后，为实腹梁段；拱形钢管混凝土加劲桁包括沿斜撑刚构梁纵向设置的拱形钢管混凝土上弦，上弦与刚构梁之间设腹杆和竖杆。本发明通过斜撑的支撑作用，主跨箱梁上方拱形钢管混凝土加劲桁的加劲作用，有效的增大了桥梁刚度，提高跨越能力。
Railway large-span diagonal bracing rigid frame-arched concrete filled steel tube stiffening truss combined bridge
铁路大跨斜撑刚构-拱形钢管混凝土加劲桁组合桥梁
SHI YAOJUN (Autor:in) / YANG SHAOJUN (Autor:in) / OUYANG HUILAI (Autor:in) / YANG JING (Autor:in) / WANG XIAOJUN (Autor:in) / LI XIA (Autor:in) / ZHOU YOUQUAN (Autor:in) / WEI LIANGDAO (Autor:in) / FENG YACHENG (Autor:in) / ZHUANG YAN (Autor:in)
08.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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