An investigation on the flutter derivative prediction of flat steel box girders is carried out based CFD simulations. Firstly, by taking girder section Qingshan Yangtze River Bridge as basic and considering its width height design variables cross-section shape, domain shape defined controlling possible variation range variables. A small number cross-sections are selected for calculation aerodyn...

This paper presents a modelling approach that can be used by contractors to plan elevated highway reconstruction projects. The proposed model estimates the project duration, productivity rate of the operation, and visualizes the output using 4D modelling. In this paper, the focus is on the demolition and construction of a box girder elevated highways as part of an interchange reconstruction pro...

Presently, the general seismic fragility evaluation method for a bridge system composed of member elements with different nonlinear behaviors against strong earthquakes has been to evaluate at element-level. This study aims develop system-level that represents structural system. Because behavior bridges is generally divided into transverse and longitudinal directions, this evaluated in both dir...

A concrete bridge over Interstate 70 east of Denver, Colorado was impacted by a fork lift being transported by a truck moving at a speed of approximately 75 mph. The forklift impacted the east face of the prestressed concrete I-beam bridge girder, resulting in severe cracking and concrete spalling on both sides of the eastmost girder. Polymer-modified repair mortar was used to repair spalled ar...

The steel-concrete composite girder bridge with V-shaped piers is a new type of structure. It has both the unique mechanical performance combined continuous and that pier bridge. At present, studies on properties steel main girders concrete deck slabs are mainly focused substructure for vertical piers, but not solidified. However, if cemented to girder, will directly affect total superstructure...

This work designs a novel hydraulic-walking incremental launching equipment. The working principle of the equipment is proposed. Considering that the contact in incremental launching construction is a typical elastic contact problem, and changes in contact state will directly affect the stability of the incremental launching, this work proposes the equilibrium equations of computational contact...