Concrete box-girder structure is considered the thin-walled structure, undergoing deformation and forces, as well having structural rigidity in three dimensional directions. However, it’s commonly modeled 1D for sake of design practicality, which influences numerical result its dynamic properties when compared to both real time SHMS field test result. To see how far difference between 1D, 2D, 3...

A bridge is a structure providing passage over an obstacle without closing the way beneath. The required passage may be for a road, a railway, pedestrians, a canal or a pipeline. Now a days, bridge deck section of Box shapes are used widely. Most of the bridges constructed are of Box girders. Method of post-tensioning in the construction of bridges is very common today. Most of the bridges are ...

Based on the theory of vehicle track coupling dynamics, the local vibration of the high-speed railway box girder is analyzed by the Finite Element Method and the model is simulated with the solid elements. Through the study of vibration characteristics of the selected 6 sensitive points, the local vibrations in different parts of the box girder are figured out. It is compared the response of th...

In this paper, the stress-related damping ratio formula of box girder with corrugated steel webs is introduced. Using response spectrum method, an iterative algorithm is proposed to calculate the seismic response and the stressrelated damping ratio under different seismic intensities. Based on a simply supported composite box girder bridge with corrugated steel webs, the stress-related damping ...

A very detailed 2D-solid finite element model is developed representing the load carrying box girder of a wind turbine blade. Using typical geometrical values for the girder dimensions and public available material data, the overall cross-sectional behaviour is analysed for a simple compressive line load. The results are compared with result from similar shell models, which typically are used f...

The use of heavier trucks demanded upgrading of a twenty-seven year old bridge in Winnipeg, Manitoba, Canada. Analysis of the precast prestressed concrete girders using the current AASHTO Code indicates a deficiency in the shear capacity. Shear strengthening using Carbon Fibre Reinforced Polymer (CFRP) sheets provides a low-cost solution by increasing the speed of construction and reducing traf...

Background: Bridges are one of the most critical parts a transportation network that may be damaged during earthquakes and it is necessary to have prediction model for bridge responses under seismic loads can extended other situations. Soil stiffness significantly affects load distribution when soil, piles, abutment, superstructure all act as combined system resist lateral loading on bridge. Me...

Prefabricated concrete hollow slab bridges are widely used in short- and medium-span highway China due to the advantages of high production quality, installation convenience, low construction cost. Field investigation shows that severe hinge joint damage occurred during service life, mechanical performance also deteriorated with weakened joints. It is important accurately evaluate ensure safety...

Abstract The aerodynamic performance of high-speed trains passing each other was investigated on a simply supported box girder bridge, with span 32 m, under crosswinds. bridge and train models, modeled at geometric scale ratio 1:30, were used to test the forces train, help designed moving rig in XNJD-3 wind tunnel. effects speed, yaw angle coefficients analyzed. static model tests compared demo...