Download or read book ECSC Research on Fatigue of Orthotropic Steel Bridge Decks written by Transport and Road Research Laboratory and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue of Steel Bridge Decks written by Timothy Russell Gurney and published by Bernan Press(PA). This book was released on 1992 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: A broadly-based research programme on orthotropic steel bridge decks, led by D.E. Nunn, was carried out between 1963 and 1987 covering traffic usage, surfacing and fatigue. Initially the work was predictive, determining the main variables and establishing the basis of a fatigue assessment methods. Following the discovery of fatigue cracks in service, methods of repair and strengthening were developed. This work has been recorded in internal reports, but much of it has not been generally available until publication of this review. Experimental results are presented and recommendations given for the fatigue classification of welded joints in orthotropic decks.

Download or read book Fatigue Investigation on Orthotropic Steel Bridge Deck written by H. Agerskov and published by . This book was released on 1986 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Performance Evaluation for an Orthotropic Steel Bridge Deck Based on Field Hotspot Stress Measurements written by Bin Chen and published by . This book was released on 2020 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study has introduced a method for fatigue performance evaluation of steel orthotropic bridge decks based on filed measurements for hotspot stress. The long-term stress of the orthotropic bridge deck of Jinchang Road Canal Bridge in Hangzhou, China, was observed by sensors. The fatigue damage and fatigue reliability of the bridge deck were analyzed and evaluated according to the stress. The results show that: (a) the fatigue life of the bridge deck is larger than the design value, indicating that the design of the orthotropic bridge deck is reasonable; (b) the fatigue loads acting at three hotspots can be described by normal distribution; and (c) for the current traffic volume, the fatigue reliability index of the three hotspots is greater than two in the design period. The fatigue reliability index of the three hotspots decreases significantly with the increase of traffic flow, at which time the fatigue damage becomes considerable.

Download or read book Selected Papers on Orthotropic Steel Deck Testing and Design Recommendations by Research Engineer Henk Kolstein of T U Delft Netherlands written by Henk Kolstein and published by . This book was released on 19?? with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Henk Kolstein was a research engineer at TU-Delft beginning in 1978, specializing "in the domain of bridge loading and fatigue of orthotropic steel bridge decks". Early in 2000 he corresponded with Alfred E. Mangus of Caltrans about "exchanging information on orthotropic bridge decks" and promised to send some papers "by post." These papers are collected here.

Download or read book Measurements and Interpretation of Dynamic Loads on Bridges written by European Communities and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last few decades, the traffic intensity and the wheel loads on bridges have increased considerably, resulting in fatigue cracks and repairs. Within the framework of research funded by the European Coal and Steel Community, several programmes have been carried out to investigate the traffic loads, the stresses they produce and the fatigue performance of various details. These programmes have been carried out by seven research institutes in six countries of the European Community. Especially in the programmes carried out now, the experimental research has been carried out in combination with numerical and analytical studies to obtain better insight into the stress distribution of the various connections in steel orthotropic bridge decks with closed longitudinal stiffeners. This report highlights the Dutch results obtained in the fourth phase research. The research programme includes a survey on existing bridges in the Netherlands to obtain information about the different detailing in the orthotropic deck plate and the fatigue behaviour of the details. Based on available research results, it appeared to be necessary to perform some full-scale fatigue tests on the longitudinal stiffener splice joint to improve the detail and to obtain information about repairing this detail. Fatigue design curves have been defined for the longitudinal stiffener splice joint as well as the longitunal stiffener to deck plate connection. For the latter, no additional experiments were needed. Experimental as well as numerical research on the longitudinal stiffener to crossbeam connection has been carried out to improve the knowledge of the different types of detail.

Download or read book Fatigue Life Prediction of an Orthotropic Steel Bridge Deck written by James R. Chapman and published by . This book was released on 2003 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life Cycle Evaluation of Fatigue Mitigation for Orthotropic Steel Bridge Decks written by Koichi Sugioka and published by . This book was released on 2009 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fabrication Procedure Effects on Fatigue Resistance of Rib to deck Welded Joints of Steel Orthotropic Bridge Decks written by Hyoung-Bo Sim and published by . This book was released on 2010 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Orthotropic steel bridge decks have been widely used for long- and medium-span bridges due to excellent structural characteristics. However, orthotropic decks have experienced various fatigue problems, resulting from high cyclic stresses in conjunction with inadequate welding details. In particular, crack at rib-to-deck welded joints due to wheel load is a concern because inspection and repair of the back side of this weld for closed ribs is not practical due to lack of access. Fatigue resistance of rib-to-deck joints can be significantly influenced by fabrication effects including weld melt-through and distortion control measures (for example, precambering and heat-straightening). Current design practice is to use empirical approach for fatigue safety assessments by conforming to the detailing requirements [for example, at least 80% partial-joint-penetration (PJP) weld at the rib-to-deck joint]. However, little experimental and analytical research has been done as to the code-specified requirements and fabrication procedure effects on the fatigue resistance of the PJP joint. Six 2-span, full-scale orthotropic steel deck specimens (10 m long by 3 m wide) were fabricated and subjected to 8 million loading cycles to study the effects of both weld melt-through and distortion control measures on the fatigue resistance of the PJP joint. Test results showed that six cracks initiated from the weld toe outside the closed rib. Only one crack developed at the weld root inside the rib; this crack initiated from a location transitioning from the 80% PJP to 100% penetration. Weld melt-through appeared to be detrimental in fatigue resistance. Precambering was beneficial as two effectively precambered specimens did not experience cracking in the PJP welds. Finite element analysis using effective notch stress method showed a good correlation with the observed crack pattern in testing. Bending stresses were dominant at the PJP joint ; shear and membrane stresses were very small. Parametric study showed that the fatigue resistance of the PJP joint can be significantly influenced by transverse loading location, deck plate thickness, and weld penetration ratio. Increasing the deck plate thickness was efficient in reducing the stresses, while the rib plate thickness had a little effect. Shallower weld penetration at the PJP joint appeared to have a positive effect in enhancing the fatigue resistance.

Download or read book Measurement and Interpretation of Dynamic Loads on Bridges written by A. Bruis and published by . This book was released on 1991 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Renovation Techniques for Fatigue Cracked Orthotropic Steel Bridge Decks written by Foppe Bouk Peter de Jong and published by . This book was released on 2007 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transportation Research Record written by and published by . This book was released on 1999 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Behaviour of Closed Stiffener to Crossbeam Connections in Orthotropic Steel Bridge Decks written by Johan Sebastiaan Leendertz and published by . This book was released on 2008 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analytical Study of Orthotropic Steel Bridge Decks written by Hisashi Daiguji and published by . This book was released on 1972 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Steel Bridge Decks written by J. R. Cuninghame and published by . This book was released on 1982 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Various Bridge Design Issues written by and published by . This book was released on 1999 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Study of Orthotropic Bridge Deck Welds written by and published by . This book was released on 1972 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: