A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridge deck widening method of double-layer highway-railway combined construction steel truss girder and double-layer bridge
The invention relates to a bridge deck widening method of a double-layer highway-railway combined construction steel truss girder and a double-layer bridge, and relates to the technical field of bridge design, and the method comprises the following steps: obtaining a bridge deck widening length according to bridge deck design parameters; obtaining the maximum design length which is kept stable when the third upper-layer bridge surface and the fourth upper-layer bridge surface are supported by the supporting inclined rods; whether the maximum design length of the third upper-layer bridge floor and the fourth upper-layer bridge floor which keep stable meets the bridge floor widening length or not is checked; if the design requirement is not met, the supporting inclined rods are reinforced, when the maximum design length of the third upper-layer bridge floor and the fourth upper-layer bridge floor which are kept stable after reinforcement does not meet the bridge floor widening length, the third upper-layer bridge floor and the fourth upper-layer bridge floor keep the maximum design length after reinforcement, and the distance between the trusses is adjusted; the lengths of the first upper-layer bridge floor and the second upper-layer bridge floor are changed, so that the upper-layer bridge floors meet bridge floor design parameters. The conditions that the internal force of the rod pieces is increased and a large number of supporting rod pieces need to be installed due to adjustment of the space between the trusses are reduced or eliminated.
本申请涉及一种双层公铁合建钢桁梁的桥面加宽方法及双层桥梁，涉及桥梁设计技术领域，包括根据桥面设计参数，得出桥面加宽长度；获取第三上层桥面和第四上层桥面采用支撑斜杆支撑时保持稳定的最大设计长度；检验第三上层桥面和第四上层桥面保持稳定的最大设计长度是否满足桥面加宽长度；若不满足设计需求，则对支撑斜杆加固，在加固后的第三上层桥面和第四上层桥面保持稳定的最大设计长度不满足桥面加宽长度时，第三上层桥面和第四上层桥面保持加固后的最大设计长度，并调整桁架的间距，以改变第一上层桥面和第二上层桥面的长度，使上层桥面满足桥面设计参数。减少或消除调整桁架的间距带来的引起杆件内力加大，需要安装大量支撑杆件的情况。
Bridge deck widening method of double-layer highway-railway combined construction steel truss girder and double-layer bridge
The invention relates to a bridge deck widening method of a double-layer highway-railway combined construction steel truss girder and a double-layer bridge, and relates to the technical field of bridge design, and the method comprises the following steps: obtaining a bridge deck widening length according to bridge deck design parameters; obtaining the maximum design length which is kept stable when the third upper-layer bridge surface and the fourth upper-layer bridge surface are supported by the supporting inclined rods; whether the maximum design length of the third upper-layer bridge floor and the fourth upper-layer bridge floor which keep stable meets the bridge floor widening length or not is checked; if the design requirement is not met, the supporting inclined rods are reinforced, when the maximum design length of the third upper-layer bridge floor and the fourth upper-layer bridge floor which are kept stable after reinforcement does not meet the bridge floor widening length, the third upper-layer bridge floor and the fourth upper-layer bridge floor keep the maximum design length after reinforcement, and the distance between the trusses is adjusted; the lengths of the first upper-layer bridge floor and the second upper-layer bridge floor are changed, so that the upper-layer bridge floors meet bridge floor design parameters. The conditions that the internal force of the rod pieces is increased and a large number of supporting rod pieces need to be installed due to adjustment of the space between the trusses are reduced or eliminated.
本申请涉及一种双层公铁合建钢桁梁的桥面加宽方法及双层桥梁，涉及桥梁设计技术领域，包括根据桥面设计参数，得出桥面加宽长度；获取第三上层桥面和第四上层桥面采用支撑斜杆支撑时保持稳定的最大设计长度；检验第三上层桥面和第四上层桥面保持稳定的最大设计长度是否满足桥面加宽长度；若不满足设计需求，则对支撑斜杆加固，在加固后的第三上层桥面和第四上层桥面保持稳定的最大设计长度不满足桥面加宽长度时，第三上层桥面和第四上层桥面保持加固后的最大设计长度，并调整桁架的间距，以改变第一上层桥面和第二上层桥面的长度，使上层桥面满足桥面设计参数。减少或消除调整桁架的间距带来的引起杆件内力加大，需要安装大量支撑杆件的情况。
Bridge deck widening method of double-layer highway-railway combined construction steel truss girder and double-layer bridge
一种双层公铁合建钢桁梁的桥面加宽方法及双层桥梁
PENG LINGFENG (author) / YANG GUANGWU (author) / ZOU MINYONG (author) / PENG ZUI (author) / YUE RUI (author) / CHENG ZIHAN (author) / JIN YANJUN (author) / GUO RIQIANG (author)
2024-06-21
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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