Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Single Land Live Load Distribution Factor for Decked Precast/Prestressed Concrete Girder Bridges
The live load distribution factor (DF) equations provided by AASHTO-LRFD for the decked precast/prestressed concrete (DPPC) girder bridge system do not differentiate between a single or multilane loaded condition. This practice results in a single lane load rating penalty for DPPC girder bridges. The objective of this project is to determine DF equations which accurately predict the distribution factor of the DPPC girder bridge system when it is only subjected to single lane loading. Eight DPPC girder bridges were instrumented. Each bridge was loaded with a single load vehicle to simulate the single lane loaded condition. The experimental data was used to calibrate 3D FE models and 2D grillage models of the DPPC girder bridge system. The calibrated models were used to conduct a parametric study of the DPPC girder bridge system subjected to a single lane loaded condition. Two sets of new equations that describe the single lane loaded distribution factor for both shear and moment forces of these bridges are proposed and compared with AASHTOLRFD DF equations.
Single Land Live Load Distribution Factor for Decked Precast/Prestressed Concrete Girder Bridges
The live load distribution factor (DF) equations provided by AASHTO-LRFD for the decked precast/prestressed concrete (DPPC) girder bridge system do not differentiate between a single or multilane loaded condition. This practice results in a single lane load rating penalty for DPPC girder bridges. The objective of this project is to determine DF equations which accurately predict the distribution factor of the DPPC girder bridge system when it is only subjected to single lane loading. Eight DPPC girder bridges were instrumented. Each bridge was loaded with a single load vehicle to simulate the single lane loaded condition. The experimental data was used to calibrate 3D FE models and 2D grillage models of the DPPC girder bridge system. The calibrated models were used to conduct a parametric study of the DPPC girder bridge system subjected to a single lane loaded condition. Two sets of new equations that describe the single lane loaded distribution factor for both shear and moment forces of these bridges are proposed and compared with AASHTOLRFD DF equations.
Single Land Live Load Distribution Factor for Decked Precast/Prestressed Concrete Girder Bridges
Z. Ma (Autor:in) / J. L. Hulsey (Autor:in)
2004
450 pages
Report
Keine Angabe
Englisch
Single-Lane Live Load Distribution Factor for Decked Precast, Prestressed Concrete Girder Bridges
| British Library Online Contents | 2005
Single-Lane Live-Load Distribution Factor for Decked Precast and Prestressed Concrete Girder Bridges
| British Library Conference Proceedings | 2005
Decked Precast and Prestressed Concrete Girder Bridges
| British Library Conference Proceedings | 2004
Live-Load Distribution Factors in Prestressed Concrete Girder Bridges
| Online Contents | 2001