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A platform for research: civil engineering, architecture and urbanism
Steel-concrete combined truss girder for high-speed magnetic suspension long-span cable-stayed bridge stiffening girder
The invention relates to a steel-concrete combined truss girder for a high-speed magnetic suspension large-span cable-stayed bridge stiffening girder, which comprises a lower chord member, paired middle trusses (5) and paired upper chord members (6) which are sequentially arranged from bottom to top, and the lower chord member adopts the steel-concrete combined beam and is horizontally arranged. The steel-concrete combined truss girder comprises a steel box girder (2) and a concrete bridge deck (3) arranged at the top of the steel box girder (2), paired high-speed maglev traffic track beams (4) are arranged on the concrete bridge deck (3), middle trusses (5) are vertically arranged in the longitudinal bridge direction, paired middle trusses (5) are distributed in the transverse bridge direction, and an upper chord (6) is of a box-shaped steel structure and is horizontally arranged. Compared with the prior art, the overall rigidity of the large-span cable-stayed bridge is guaranteed, the break angle value of the midspan track beam is reduced, meanwhile, the local rigidity is also improved, and a favorable effect is achieved on the smoothness of the track beam located at the auxiliary pier, so that the operation requirement of a high-speed magnetic levitation system is met.
本发明涉及一种用于高速磁悬浮大跨度斜拉桥加劲梁的钢混组合式桁架梁，包括自下而上依次设置的下弦杆、成对的中间桁架(5)和成对的上弦杆(6)，所述下弦杆采用钢混组合梁并水平设置，包括钢制箱梁(2)以及设于钢制箱梁(2)顶部的混凝土桥面板(3)，所述混凝土桥面板(3)上设置成对的高速磁浮交通轨道梁(4)，所述中间桁架(5)沿纵桥向竖直设置，成对的中间桁架(5)沿横桥向分布，所述上弦杆(6)采用箱型钢结构并水平设置。与现有技术相比，本发明保证了大跨度斜拉桥的整体刚度，减小了跨中轨道梁折角值，同时局部刚度也得到提高，对位于辅助墩处的轨道梁的平顺性也起到了有利作用，从而满足高速磁浮系统运行的需要。
Steel-concrete combined truss girder for high-speed magnetic suspension long-span cable-stayed bridge stiffening girder
The invention relates to a steel-concrete combined truss girder for a high-speed magnetic suspension large-span cable-stayed bridge stiffening girder, which comprises a lower chord member, paired middle trusses (5) and paired upper chord members (6) which are sequentially arranged from bottom to top, and the lower chord member adopts the steel-concrete combined beam and is horizontally arranged. The steel-concrete combined truss girder comprises a steel box girder (2) and a concrete bridge deck (3) arranged at the top of the steel box girder (2), paired high-speed maglev traffic track beams (4) are arranged on the concrete bridge deck (3), middle trusses (5) are vertically arranged in the longitudinal bridge direction, paired middle trusses (5) are distributed in the transverse bridge direction, and an upper chord (6) is of a box-shaped steel structure and is horizontally arranged. Compared with the prior art, the overall rigidity of the large-span cable-stayed bridge is guaranteed, the break angle value of the midspan track beam is reduced, meanwhile, the local rigidity is also improved, and a favorable effect is achieved on the smoothness of the track beam located at the auxiliary pier, so that the operation requirement of a high-speed magnetic levitation system is met.
本发明涉及一种用于高速磁悬浮大跨度斜拉桥加劲梁的钢混组合式桁架梁，包括自下而上依次设置的下弦杆、成对的中间桁架(5)和成对的上弦杆(6)，所述下弦杆采用钢混组合梁并水平设置，包括钢制箱梁(2)以及设于钢制箱梁(2)顶部的混凝土桥面板(3)，所述混凝土桥面板(3)上设置成对的高速磁浮交通轨道梁(4)，所述中间桁架(5)沿纵桥向竖直设置，成对的中间桁架(5)沿横桥向分布，所述上弦杆(6)采用箱型钢结构并水平设置。与现有技术相比，本发明保证了大跨度斜拉桥的整体刚度，减小了跨中轨道梁折角值，同时局部刚度也得到提高，对位于辅助墩处的轨道梁的平顺性也起到了有利作用，从而满足高速磁浮系统运行的需要。
Steel-concrete combined truss girder for high-speed magnetic suspension long-span cable-stayed bridge stiffening girder
用于高速磁悬浮大跨度斜拉桥加劲梁的钢混组合式桁架梁
XU LIPING (author) / LI YING (author) / WU DINGJUN (author) / LI QI (author) / ZHANG CONG (author) / LIU JIAN (author)
2021-06-04
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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