完成修改槽口功能的焊接细节的槽桥

IF 1.2 Q3 CONSTRUCTION & BUILDING TECHNOLOGY
Francesco Aigner, J. Fink, P. Takács
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引用次数: 0

摘要

在铁路桥梁建设中最常见的任务之一是更换长度达25米的旧结构。为了减轻自身的重量,旧桥通常没有压载床。相反,今天的铁路桥提供了一个标准深度为55厘米的压载床。由于在大多数情况下,钢轨的顶部既不能升高,结构的底线也不能降低,因此建筑本身的深度必须尽可能低。一个适当的(虽然特殊用途和昂贵的)解决方案是用120毫米深的厚钢板作为道路桥面的槽式桥梁。该板通过圆角和单级宽焊缝连接到腹板。本文讨论了基于缺口应力修正公式的这些焊接细节的疲劳验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Complete modified notch functions for a welded detail of a trough bridge
Among the most frequent tasks occurring in railway bridge construction, there is the replacement of old structures of length up to 25 m. To reduce the own weight, old bridges are usually erected without a ballast bed. On the contrary, today railway bridges are provided with a ballast bed with a standard depth of 55 cm. As in most cases neither the top of rail can be raised nor the bottom line of the structure can be lowered, the depth of the construction itself must be kept as low as possible. An appropriate (though special‐purpose and expensive) solution is given by a trough bridge with 120 mm‐deep heavy a steel plate as road deck. This plate is connected by fillet and single‐level broad welds to the web plates. The present article deals with the fatigue verification of these welded details based on a modified formulation of notch stresses.
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来源期刊
Steel Construction-Design and Research
Steel Construction-Design and Research CONSTRUCTION & BUILDING TECHNOLOGY-
CiteScore
3.00
自引率
6.20%
发文量
63
期刊介绍: Steel Construction publishes peerreviewed papers covering the entire field of steel construction research. In the interests of "construction without depletion", it skilfully combines steel with other forms of construction employing concrete, glass, cables and membranes to form integrated steelwork systems. Since 2010 Steel Construction is the official journal for ECCS- European Convention for Constructional Steelwork members. You will find more information about membership on the ECCS homepage. Topics include: -Design and construction of structures -Methods of analysis and calculation -Experimental and theoretical research projects and results -Composite construction -Steel buildings and bridges -Cable and membrane structures -Structural glazing -Masts and towers -Vessels, cranes and hydraulic engineering structures -Fire protection -Lightweight structures
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