LABORATORY STATIC HORIZONTAL LOADING TESTS ON GRS INTEGRAL BRIDGE ABUTMENT SUFFERED BY TSUNAMI LATERAL LOADING

Performance of Bridge Timber Ties under Static and Dynamic Loading

A dramatic increase in railway car axle loads has occurred over the past 50 years. This paper presents the results of an experimental program undertaken at the University of Manitoba to evaluate the structural performance and durability of treated timber bridge ties under different load levels. A portion of a prototype bridge deck, consisting of eight prototype timber ties, was tested under var...

Static and Dynamic Lateral Loading of Pile Groups

Monitoring of a Swedish Integral Abutment Bridge

One of the most commonly discussed problems regarding bridges with integral abutments is the influence of longitudinal elongation of the superstructure as a result of seasonal temperature variations. A bridge built with integral abutments is often supported by a row of piles made of steel or concrete. The longitudinal elongation of the superstructure induces a displacement and a rotation at the...

Effect of Single Off-Axis Implant Placement on Abutment Screw Stability Under Lateral Loading.

PURPOSE The aim of this study was to evaluate the effect of off-axis implant placement in relation to the prosthetic crown on abutment screw loosening under different directions of twisting moments. MATERIALS AND METHODS Twenty-one implant assemblies were divided equally into three groups (n = 7). Each assembly consisted of an internal-octagon implant measuring 4.1 × 12 mm (standard plus impl...

Console abutment loading in craniofacial osseointegration.

Retention of implant-supported facial prostheses presents challenges in design that may lead to use of freestanding abutments. This is particularly so in the midface and orbit. Individual implant success rates are lower in these regions, and bone remodeling capacity may be compromised by combined modality cancer therapy. The present study was undertaken to determine the variations in load deliv...