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A platform for research: civil engineering, architecture and urbanism
Curve stiffening chord steel truss girder bridge design method and steel truss girder bridge
The invention discloses a curve stiffening chord steel truss girder bridge design method and a steel truss girder bridge, and relates to the technical field of bridge design. The method comprises the steps that in a vertical plane, part of an upper chord system line corresponding to a stiffening chord system line is translated upwards by a set length to serve as a stiffening chord plane rotating shaft; the vertical plane is rotated by a set angle towards the bridge floor side along the stiffening chord plane rotating shaft to serve as a stiffening chord plane; and establishing a stiffening chord system line in the stiffening chord plane, and establishing a stiffening chord structure by taking the stiffening chord system line as a reference. When the built stiffening chord structure is spliced with the upper chord, no transverse deviation exists, no secondary stress exists, and the stiffening chord structure can adapt to longitudinal slopes with different proportions on the two sides of a circular curve. The problem that in the prior art, certain splicing secondary stress is brought to the structure when stiffening strings are spliced, and the safety of the structure is threatened is solved.
本发明公开了一种曲线加劲弦钢桁梁桥设计方法及钢桁梁桥，涉及桥梁设计技术领域，该方法包括：在竖直平面内，将加劲弦系统线对应的部分上弦杆系统线向上平移设定长度，作为加劲弦平面旋转轴；将竖直平面沿加劲弦平面旋转轴向桥面侧旋转设定角度，作为加劲弦平面；在加劲弦平面内建立加劲弦系统线，以加劲弦系统线为基准建立加劲弦结构。建立的加劲弦结构与上弦杆拼接时没有横向偏差，不存在次应力，可适应圆曲线两侧不同比例纵坡。解决了现有技术中存在加劲弦拼装时会给结构带来一定的拼接次应力，威胁到结构安全的问题。
Curve stiffening chord steel truss girder bridge design method and steel truss girder bridge
The invention discloses a curve stiffening chord steel truss girder bridge design method and a steel truss girder bridge, and relates to the technical field of bridge design. The method comprises the steps that in a vertical plane, part of an upper chord system line corresponding to a stiffening chord system line is translated upwards by a set length to serve as a stiffening chord plane rotating shaft; the vertical plane is rotated by a set angle towards the bridge floor side along the stiffening chord plane rotating shaft to serve as a stiffening chord plane; and establishing a stiffening chord system line in the stiffening chord plane, and establishing a stiffening chord structure by taking the stiffening chord system line as a reference. When the built stiffening chord structure is spliced with the upper chord, no transverse deviation exists, no secondary stress exists, and the stiffening chord structure can adapt to longitudinal slopes with different proportions on the two sides of a circular curve. The problem that in the prior art, certain splicing secondary stress is brought to the structure when stiffening strings are spliced, and the safety of the structure is threatened is solved.
本发明公开了一种曲线加劲弦钢桁梁桥设计方法及钢桁梁桥，涉及桥梁设计技术领域，该方法包括：在竖直平面内，将加劲弦系统线对应的部分上弦杆系统线向上平移设定长度，作为加劲弦平面旋转轴；将竖直平面沿加劲弦平面旋转轴向桥面侧旋转设定角度，作为加劲弦平面；在加劲弦平面内建立加劲弦系统线，以加劲弦系统线为基准建立加劲弦结构。建立的加劲弦结构与上弦杆拼接时没有横向偏差，不存在次应力，可适应圆曲线两侧不同比例纵坡。解决了现有技术中存在加劲弦拼装时会给结构带来一定的拼接次应力，威胁到结构安全的问题。
Curve stiffening chord steel truss girder bridge design method and steel truss girder bridge
一种曲线加劲弦钢桁梁桥设计方法及钢桁梁桥
ZHOU ZIMING (author) / KANG JIN (author) / BAO LIXIA (author) / XU WEI (author) / FU ZHANGONG (author) / FU LANLAN (author) / LIAO GUIXING (author) / ZHOU YINDONG (author) / CHEN YALAN (author) / YAO LU (author)
2024-11-22
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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