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A platform for research: civil engineering, architecture and urbanism
Double-layer steel truss girder structure
The invention relates to a double-layer steel truss girder structure. The double-layer steel truss girder structure comprises an upper-layer cross beam, a lower-layer cross beam, an upper chord member, a lower chord member, web members for connecting the upper chord member and the lower chord member, an upper longitudinal beam crossed with the upper-layer cross beam, a lower longitudinal beam crossed with the lower-layer cross beam, and a vertical connecting rod, the upper-layer cross beam comprises an upper-layer node cross beam which is connected with the upper chord member; the upper layer node cross beam is a height-variable node cross beam; the lower-layer cross beam comprises a lower-layer node cross beam which is connected with the lower chord member; one end of the vertical connecting rod is arranged at the intersection of the upper longitudinal beam and the upper-layer node cross beam, and the other end of the vertical connecting rod is arranged at the intersection of the lower longitudinal beam and the lower-layer node cross beam. The double-layer steel truss girder structure is provided with the height-variable upper-layer node cross beams and the vertical connecting rods, a smooth stress path is formed, the upper-layer bridge deck system and the lower-layer bridge deck system are stressed together, the rigidity of a single-layer bridge deck under live load is increased, the height of the lower-layer bridge deck system is effectively reduced, and the girder height of the lower-layer bridge deck meets the requirement for the transverse bridge direction rigidity under the live load of the bridge deck.
本申请涉及一种双层钢桁梁结构，包括上层横梁、下层横梁、上弦杆、下弦杆、连接上弦杆和下弦杆的腹杆、与上层横梁交叉设置的上纵梁、与下层横梁交叉设置的下纵梁、竖向连杆；上层横梁包括上层节点横梁，上层节点横梁与上弦杆连接；上层节点横梁为变高度的节点横梁；下层横梁包括下层节点横梁，下层节点横梁与下弦杆连接；竖向连杆的一端设于上纵梁与上层节点横梁的交点处，另一端设于下纵梁与下层节点横梁的交点处。本发明提供一种双层钢桁梁结构，设有变高度的上层节点横梁和竖向连杆，形成顺延的受力路径，使上下层桥面系共同受力，增加单层桥面活载下的刚度，有效降低下层桥面系的高度，使得下层桥面的梁高满足桥面活载下横桥向刚度的要求。
Double-layer steel truss girder structure
The invention relates to a double-layer steel truss girder structure. The double-layer steel truss girder structure comprises an upper-layer cross beam, a lower-layer cross beam, an upper chord member, a lower chord member, web members for connecting the upper chord member and the lower chord member, an upper longitudinal beam crossed with the upper-layer cross beam, a lower longitudinal beam crossed with the lower-layer cross beam, and a vertical connecting rod, the upper-layer cross beam comprises an upper-layer node cross beam which is connected with the upper chord member; the upper layer node cross beam is a height-variable node cross beam; the lower-layer cross beam comprises a lower-layer node cross beam which is connected with the lower chord member; one end of the vertical connecting rod is arranged at the intersection of the upper longitudinal beam and the upper-layer node cross beam, and the other end of the vertical connecting rod is arranged at the intersection of the lower longitudinal beam and the lower-layer node cross beam. The double-layer steel truss girder structure is provided with the height-variable upper-layer node cross beams and the vertical connecting rods, a smooth stress path is formed, the upper-layer bridge deck system and the lower-layer bridge deck system are stressed together, the rigidity of a single-layer bridge deck under live load is increased, the height of the lower-layer bridge deck system is effectively reduced, and the girder height of the lower-layer bridge deck meets the requirement for the transverse bridge direction rigidity under the live load of the bridge deck.
本申请涉及一种双层钢桁梁结构，包括上层横梁、下层横梁、上弦杆、下弦杆、连接上弦杆和下弦杆的腹杆、与上层横梁交叉设置的上纵梁、与下层横梁交叉设置的下纵梁、竖向连杆；上层横梁包括上层节点横梁，上层节点横梁与上弦杆连接；上层节点横梁为变高度的节点横梁；下层横梁包括下层节点横梁，下层节点横梁与下弦杆连接；竖向连杆的一端设于上纵梁与上层节点横梁的交点处，另一端设于下纵梁与下层节点横梁的交点处。本发明提供一种双层钢桁梁结构，设有变高度的上层节点横梁和竖向连杆，形成顺延的受力路径，使上下层桥面系共同受力，增加单层桥面活载下的刚度，有效降低下层桥面系的高度，使得下层桥面的梁高满足桥面活载下横桥向刚度的要求。
Double-layer steel truss girder structure
一种双层钢桁梁结构
ZHU ZHIQIANG (author) / YANG JINXIAN (author) / CHOI WOO-YEON (author) / LIU HANSHUN (author) / YU JUNJIE (author) / LIU HOUJUN (author) / ZHAO XIAOQING (author) / ZHU CHAO (author) / NIE FEI (author) / YING ZHUQING (author)
2023-11-17
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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