The Idaho Transportation Department (ITD) commissioned a geophysical study to aid in the design of a replacement for an existing concrete span bridge. Because the river current was too swift to place geophones in the river, the solution was to shoot p-wave profiles in a reciprocal geometry (phones on land, shots in the river). In addition to the refraction work, a down-hole seismic profile was ...

Abstract In Simply supported bridge, superstructure and substructure are separated by the expansion joint bearing. Integral bridge (IB), deck is casted monolithically with abutment wall. bridges have increased redundancy, which improves its seismic performance. Bridge fails may fail due to failure of bearing, non‐availability seating width does not occur in IB. The single pile analysis performe...

In order to improve the quality of bored piles in bridge construction and ensure overall bridge, we analyzed a series problems process piles, then propose corresponding control measures, hopes improving our country.

This paper investigates the impact of bridge-pilling modifications on tidal flow at strait a human-altered mesotidal estuary (Cádiz Bay, Spain). The analysis was accomplished by combining (1) field data current velocities in cross-section close to pile recently built bridge, and (2) hydrodynamics results from calibrated tested DELFT3D numerical model study site. focused bridge piling effects in...

Abstract The jointless bridges includes integral bridges, semi-integral and extended deck bridges. adopts an abutment, its main girder, abutment pile under are fixed together to bear the force together. expansion joint device cancelled, integrity, durability driving comfort of bridge improved. In this paper, a simply supported girder in Fujian Province China is taken as research background, it ...