scholarly journals ANALYTICAL STUDY ON EVALUATION OF LOAD CARRYING CAPACITY OF I-GIRDER BRIDGE WITH CORROSION

2017 ◽  
Vol 73 (1) ◽  
pp. 232-247
Author(s):  
Kentaro ARIMURA ◽  
Daichi ARIYAMA ◽  
Hiroyuki FUNAKOSHI ◽  
Takashi YAMAGUCHI
Keyword(s):  
Carrying Capacity ◽  
Analytical Study ◽  
Load Carrying Capacity ◽  
Load Carrying ◽  
Girder Bridge

Analytical study on repair method for steel I-girder bridges with corrosion damage considering its structural system behavior

2021 ◽  
Author(s):  
Ryoga Oura ◽  
Takashi Yamaguchi ◽  
Kentaro Arimura
Keyword(s):  
Carrying Capacity ◽  
Corrosion Damage ◽  
Load Carrying Capacity ◽  
Structural Members ◽  
Structural System ◽  
System Behavior ◽  
Girder Bridges ◽  
Load Carrying ◽  
Girder Bridge ◽  
The Individual

<p>Bridges are composed by many structural members which interact with each other to resist against various load combinations. Considering damage repair of one of its structural members, the relationship between the recovery of the individual load-carrying capacity due to the repair of a single member and the improvement of the load-carrying capacity of the structural system is not clear. In the present study, a full-scale FE analysis has been conducted for a steel I-girder bridge system with corrosion damages which have been repaired. The analysis considered, the structural system behavior, varying the repaired areas and the type of patch members. From the analytical results, it was found that, compared to the method in which the damaged portion is completely repaired, the amount of repair can be reduced by taking into account the structural system behavior and partially repair both the damaged and the adjacent intact girders.</p>

Incompressible and Analytical Study on a Basic Model of Out-Pump Type Complex Journal Gas Bearings

2008 ◽  
Vol 381-382 ◽  
pp. 153-156
Author(s):  
S. Yao ◽  
S.M. Barrans ◽  
L. Blunt
Keyword(s):  
Analytical Model ◽  
Carrying Capacity ◽  
Analytical Study ◽  
Coupling Mechanism ◽  
Load Carrying Capacity ◽  
Basic Model ◽  
Type Complex ◽  
Load Carrying ◽  
Set Up ◽  
Gas Bearing

A basic analytical model of the out-pump type complex journal gas bearing is set up to investigate the coupling mechanism between aerodynamics and aerostatics in a complex gas bearing and to improve its performance, under incompressible conditions. The analytical model shows that the load-carrying capacity function is composed of five items. Apparently, there is both pressure and structure coupling between aerodynamics and aerostatics; identically, the surface feature function is positive; and when the groove distribution coefficient is 0.30, it is approximately maximum.

Analytical Study of Roughness on Tilted Pad Thrust Slider Bearing Improved by the Boundary Slippage

2019 ◽  
Vol 895 ◽  
pp. 70-75
Author(s):  
G.K. Kalavathi ◽  
M. Somashekhar ◽  
M.G. Vasundhara ◽  
K.K. Yogesha
Keyword(s):  
Stochastic Process ◽  
Carrying Capacity ◽  
Analytical Study ◽  
Hydrodynamic Lubrication ◽  
Load Carrying Capacity ◽  
Slider Bearing ◽  
Roughness Effect ◽  
Boundary Slippage ◽  
Load Carrying

Influence of roughness on conventional hydrodynamic lubrication of tilted pad thrust slider bearing is studied. Roughness effect is studied using Christensen stochastic process. To study the effect of roughness, bearing characteristics like load carrying capacity is analyzed.

Thermal and Inertia Effects in Turulent-Flow Thrust Bearings

1980 ◽  
Vol 22 (1) ◽  
pp. 43-45 ◽  
Author(s):  
Z. S. Safar
Keyword(s):  
Carrying Capacity ◽  
Thermal Effects ◽  
Analytical Study ◽  
Load Carrying Capacity ◽  
Inertia Effects ◽  
Thrust Bearings ◽  
Load Carrying ◽  
Laminar And Turbulent Flow ◽  
Energy Equations ◽  
Inertia Forces

This paper presents a semi-analytical study of the influence of inertia terms on the thermohydrodynamic analysis of infinitely-wide thrust bearings operating under conditions of laminar and turbulent flow. The momentum and energy equations are not seriously affected by the presence of inertia forces. Results show that the inclusion of inertia terms causes an increase in the fluid film pressure and load-carrying capacity. Thermal effects exert a pronounced influence on bearing performance.

Field Evaluation of Steel Girder Bridge

1997 ◽  
Vol 1594 (1) ◽  
pp. 140-146 ◽  
Author(s):  
Vijay K. Saraf ◽  
Andrzej S. Nowak
Keyword(s):  
Carrying Capacity ◽  
Field Evaluation ◽  
Load Test ◽  
Load Carrying Capacity ◽  
Test Procedures ◽  
Steel Girder ◽  
Weigh In Motion ◽  
Load Carrying ◽  
Steel Girder Bridge ◽  
Girder Bridge

The objective of the study was to verify the load-carrying capacity of an existing steel girder bridge. The selected structure was a 70-year-old deteriorated bridge in Michigan. The load-carrying capacity of the bridge was in question because of extensive corrosion of the steel girders. An initial rating indicated that the bridge had a marginal operating rating factor for 11-axle two-unit trucks, which are the heaviest vehicles allowed in Michigan. To avoid the load limit posting, it was decided that investigators would verify by nondestructive testing whether the bridge is safe to carry normal truck traffic. The test procedures used on the selected bridge included tests for obtaining stress histogram measurements and weigh-in-motion measurements and a proof load test. The methodology and the results are described.

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