14 Deck inclination and vertical displacements are among the most important technical parameters to 15 evaluate the health status of a bridge and to verify its bearing capacity. Several methods, both 16 conventional and innovative, are used for structural rotations and displacement monitoring; no 17 one of these does allow, at the same time, precision, automation, static and dynamic monitoring ...

In order to relieve traffic congestion, irregularly-shaped bridges have been widely used in urban overpasses. However, the analysis on modal characteristics of irregularly-shaped bridges is not exhaustive, and the effect of design parameters on modal characteristics will be deeply investigated in future studies. In this paper, a novel strategy based on a free-interface mode synthesis algorithm ...

This paper describes a method of performance evaluation and remaining life prediction for an aged reinforced concrete (RC) T-girder bridge by J-BMS RC version via close visual inspection data, and also verifies the assessment results obtained as outputs from the Bridge Rating Expert System (RC-BREX) which is a subsystem of the J-BMS, to evaluate the effectiveness of the system. The Bridge Manag...

This study analyzes the applicability of different damage indexes for bearings, focusing on time-dependent deterioration materials and bond-slip behavior between steel concrete caused by chloride erosion. First, methodology is proposed, encompassing materials, behavior, quantification bearing, fragility analysis bearings. Next, an offshore bridge used as example to investigate detailed elements...

a new fixed-partial denture design using laminates is described for the replacement of a missing anterior tooth. in this article advantages, disadvantages, indications and contraindications of the new design have been discussed. this method is best suited for cases with missing incisors and esthetically compromised abutment teeth.

The mission of the Bridge Engineering Center is to conduct research on bridge technologies to help bridge designers/owners design, build, and maintain long-lasting bridges. The contents of this report refl ect the views of the authors, who are responsible for the facts and the accuracy of the information presented herein. The opinions, fi ndings and conclusions expressed in this publication are...

Deck inclination and vertical displacements are among the most important technical parameters to evaluate the health status of a bridge and to verify its bearing capacity. Several methods, both conventional and innovative, are used for structural rotations and displacement monitoring; however, none of these allow, at the same time, precision, automation, static and dynamic monitoring without us...

The main cable is the primary load-bearing component of a long-span multi-tower suspension bridge. interaction between dead load, vehicle wind and corrosion environment leads wire to exhibit tribo-corrosion-fatigue behaviors. This behavior causes wear deterioration, as well reduction in effective cross-sectional area. gradual deterioration wire’s strength seriously affects safety cable. In orde...

Abstract Bridge foundation scour is one of the major problems for bridges in Nepal. Kathmandu Valley, which main economic hub and capital Nepal lies a seismically active zone. In this study, bridge spanning over Bagmati River Valley studied as reference to assess seismic response typical affected by scouring. Modal analysis revealed becomes more flexible when depth 2 m considered. A series push...

In order to improve the post-earthquake resilience of bridge structures, a Two-Stage seismic isolation method is proposed in this paper. According method, restoring force and horizontal stiffness are smaller first stage become much larger second stage. Therefore, new kind device, Friction Pendulum Bearing (TSFPB for short), invented based on traditional friction pendulum bearing (FPB short). pa...