The popularity of steel bridges is increasing in the modern era because of its unmatchable advantages. Engineers are using various national codes to achieve an optimum design. Some of the Asian countries are using their own codes and also American and other country code provisions to achieve better economy and better standards. In this regard the comparison of design codes is relevant. Comparis...

The National Bridge Inventory (NBI) includes more than 600,000 bridges within the United States of Prestressed concrete girder bridges represent one of the most widely used bridge systems. The majority of these girder bridges were constructed using 0.5 and 0.6 inch diameter strands. The main impediments to using larger strand diameters are: 1) bed capacities, 2) lack of structural knowledge reg...

This paper presents a framework (named Bridge_Sim) that aids contractors in planning bridge deck construction using computer simulation. The proposed framework estimates the time and cost required for construction of bridges' decks. Seven construction methods are included in the proposed framework. These are: cast-in-place on falsework, steel bridge construction, cantilever carriage, pre-cast b...

Welding thin-plate panel structures often results in warping of the panels. Several mitigation methods, including preheating and prestressing the plates during assembly, have been investigated and used by some fabricators. This paper studies the distortion mechanisms and the effect of welding sequence on panel distortion. In this study, distortion behaviors, including local plate bending and bu...

Recently, to cope with the rapidly changing construction trend with aging infrastructures, modular bridge technology has been studied actively. Modular bridge is easily constructed by assembling standardized precast structure members in the field. It will be possible to construct rapidly and reduce construction cost efficiently. However, the shape of the transverse connection of T-type girder n...

Curved beam bridge is a kind of irregular structure, which has the advantage adapting to complex terrain, but it more vulnerable damage than regular under earthquake. This paper investigates vulnerability curved continuous girder bridges action bidirectional earthquake horizontal earthquake, and difference between side pier intermediate analyzed. Fragility assessment performed using an incremen...