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A platform for research: civil engineering, architecture and urbanism
Large-span slotted suspension bridge for improving wind resistance
The invention discloses a large-span slotted suspension bridge for improving wind resistance, which comprises two bridge towers oppositely arranged along the bridge direction; the two main cables are oppositely arranged in the transverse bridge direction, and each main cable is connected to the two bridge towers; the stiffening girder is connected to the two main cables through a plurality of suspenders, the stiffening girder comprises two closed box girder sections which are oppositely arranged in the bridge direction and a slotted split type box girder which is connected with the two closed box girder sections, and the closed box girder sections are connected to a bridge tower; the slotted split type box girder comprises two split box girders oppositely arranged in the transverse bridge direction and a slot formed between the two split box girders, the ends of the two split box girders converge and are connected with the closed box girder section, the width of the middle of the slot is kept unchanged, and the width of the ends of the slot is gradually reduced. According to the method, only the slotting section needs to be arranged in the midspan of the bridge, the closed box girder section is adopted in the near-tower area, the flutter stability is improved, and meanwhile the problem that the width of the near-tower area of a split type section is large is solved.
本发明公开了一种用于提高抗风能力的大跨度开槽悬索桥，包括：两个桥塔，沿顺桥向相对设置；两个主缆，沿横桥向相对设置，每个主缆均分别连接于两个桥塔；加劲梁，通过多个吊杆连接于两个主缆，加劲梁包括沿顺桥向相对设置的两个闭口箱梁段以及连接两个所述闭口箱梁段的开槽分体式箱梁，闭口箱梁段连接于桥塔，开槽分体式箱梁包括沿横桥向相对设置的两个分体箱梁以及设于两个所述分体箱梁之间的开槽，两个分体箱梁的端部汇合且与闭口箱梁段相连接，开槽的中部的宽度保持不变，开槽的端部的宽度逐渐减小。本发明仅需在桥梁跨中设置开槽断面，而在近塔区采用闭口箱梁断面，实现颤振稳定性提升的同时，解决了分体式断面近塔区宽度较大的问题。
Large-span slotted suspension bridge for improving wind resistance
The invention discloses a large-span slotted suspension bridge for improving wind resistance, which comprises two bridge towers oppositely arranged along the bridge direction; the two main cables are oppositely arranged in the transverse bridge direction, and each main cable is connected to the two bridge towers; the stiffening girder is connected to the two main cables through a plurality of suspenders, the stiffening girder comprises two closed box girder sections which are oppositely arranged in the bridge direction and a slotted split type box girder which is connected with the two closed box girder sections, and the closed box girder sections are connected to a bridge tower; the slotted split type box girder comprises two split box girders oppositely arranged in the transverse bridge direction and a slot formed between the two split box girders, the ends of the two split box girders converge and are connected with the closed box girder section, the width of the middle of the slot is kept unchanged, and the width of the ends of the slot is gradually reduced. According to the method, only the slotting section needs to be arranged in the midspan of the bridge, the closed box girder section is adopted in the near-tower area, the flutter stability is improved, and meanwhile the problem that the width of the near-tower area of a split type section is large is solved.
本发明公开了一种用于提高抗风能力的大跨度开槽悬索桥，包括：两个桥塔，沿顺桥向相对设置；两个主缆，沿横桥向相对设置，每个主缆均分别连接于两个桥塔；加劲梁，通过多个吊杆连接于两个主缆，加劲梁包括沿顺桥向相对设置的两个闭口箱梁段以及连接两个所述闭口箱梁段的开槽分体式箱梁，闭口箱梁段连接于桥塔，开槽分体式箱梁包括沿横桥向相对设置的两个分体箱梁以及设于两个所述分体箱梁之间的开槽，两个分体箱梁的端部汇合且与闭口箱梁段相连接，开槽的中部的宽度保持不变，开槽的端部的宽度逐渐减小。本发明仅需在桥梁跨中设置开槽断面，而在近塔区采用闭口箱梁断面，实现颤振稳定性提升的同时，解决了分体式断面近塔区宽度较大的问题。
Large-span slotted suspension bridge for improving wind resistance
用于提高抗风能力的大跨度开槽悬索桥
ZHANG JINJIE (author) / YANG YONGXIN (author) / ZHU JINBO (author)
2024-01-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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