A single-piece variable-height truss-stiffened composite girder bridge
A single-piece, steel truss technology, applied in the field of single-piece variable-height truss stiffened composite girder bridges, can solve the problems of high maintenance costs, low overall rigidity, and high engineering costs, and achieve low maintenance costs in the later period, good structural rigidity, and project saving. The effect of cost
Active Publication Date: 2019-12-17
CHINA RAILWAY ENG CONSULTING GRP CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problems of the single-cable-plane cable-stayed bridge in the prior art that the relative overall rigidity is relatively small, the technology is more complicated, the engineering cost is high, the construction is difficult, and the later maintenance costs are large, and a single-cable bridge is proposed. Slab variable height truss-stiffened composite girder bridge
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[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.
[0016] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations of...
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The invention discloses a single variable-height truss stiffened composite girder bridge. The single variable-height truss stiffened composite girder bridge comprises a variable-height steel truss anda composite main girder; the composite main girder comprises a bottom plate, external side web plates, internal side web plates and a top plate; the external side web plates are arranged at the two ends of the bottom plate; the two external side web plates are both obliquely arranged relative to the bottom plate; flanges are arranged at the upper ends of the two external side web plates; the topplate is arranged between the two flanges; a cavity is formed among the top plate, the bottom plate and the two external side web plates; the two internal side web plates are symmetrically arranged inthe cavity; and the two ends of the internal side web plates are fixedly connected with the top plate and the bottom plate. The single variable-height truss stiffened composite girder bridge has theadvantages that the shape is light and beautiful, the later maintenance expense is low, the construction cost is saved and broad application space is obtained.
Description
technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a single-piece variable-height truss-reinforced composite girder bridge. Background technique [0002] The girder bridge uses the main girder as the load-bearing member. The main girder can be a solid web girder or a truss girder. The solid web girder has a simple structure and is convenient to manufacture, erect and maintain. It is widely used in medium and small span bridges. , but the material utilization is not economical enough. The members of the truss girder bear axial force, the material can be fully utilized, the self-weight is light, and the spanning capacity is large. It is mostly used for the construction of large-span bridges. Support girder bridges, continuous girder bridges and cantilever bridges. However, there is no precedent for the use of a single-piece variable-height truss-stiffened composite girder bridge structure for existing bridges. The rela...
Claims
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IPC IPC(8): E01D6/00E01D2/00
CPCE01D2/00E01D6/00E01D2101/24E01D2101/30
Inventor 徐升桥简方梁任为东焦亚萌杜士杰
Owner CHINA RAILWAY ENG CONSULTING GRP CO LTD