The frequently conventional assumption that bridge temperature is uniformly distributed on long-span bridges could lead to uncertainty when analyzing effects. This study investigated the surface of steel box girders a suspension bridge, emphasizing distribution characteristics in longitudinal (spanwise) direction. girder was monitored using long-term structural health monitoring system (SHMS). ...

When eccentric live loads are applied on the deck overhang of steel-box girder bridges, torsional moments, comprising pure and distortional moments generated box sections. The moment bridge girders distorts cross-sections, inducing additional normal stress components causing instability sections in severe cases. Hence, it is essential to install intermediate diaphragms minimize behaviors. Altho...

At present, the research on application effect of steel box girder bridges is still only in qualitative analysis link, and calculation index weights greatly affected by personal subjective factors, quantitative evaluation has not been achieved. In this paper, we proposes a combination objective combined weighting fuzzy model, which avoids unreasonable problem single method determining weight co...

Purpose. Experimental finding of Young’s modulus values the specimen steel 09Г2С with weld longitudinal arrangement and basic metal, which is used for box girder manufacturing, by means non-electrical strain measurement under various loads. Comparison received results among themselves data references.
 Methods research. Experiment, measurement, least-squares technique.
 Results. Sever...

Distortion-induced fatigue cracking in unstiffened web gaps is common in steel bridges. Previous research by the Minnesota Department of Transportation (Mn/DOT) developed methods to predict the peak web gap stress and maximum differential deflection based upon field data and finite element analyses from two skew supported steel bridges with staggered bent-plate and cross-brace diaphragms, respe...

The segmental prestressed concrete box girder of Koror-Babeldaob (KB) Bridge in Palau, which had a record span of 241 m (791 ft), presents a striking paradigm of serviceability loss because of excessive multidecade deflections. The data required for analysis have recently been released and are here exploited to show how the analysis and design could be improved. Erected segmentally in 1977, thi...