Numerical Modeling of the Lake Mary Road Bridge for Foundation Reuse Assessment

Sitek, M. A.¹  Bojanowski, C.¹  Lottes, S. A.¹ 

[1] Argonne National Lab. (ANL), Argonne, IL (United States)

关键词: foundation reuse;    numerical modeling;    structural analysis;   

DOI  :  10.2172/1224956
RP-ID  :  ANL/ESD--15/23
PID  :  OSTI ID: 1224956
Others  :  Other: 121213

美国|英语

来源: SciTech Connect

【 摘 要 】

This project uses numerical techniques to assess the structural integrity and capacity of the bridge foundations and, as a result, reduces the risk associated with reusing the same foundation for a new superstructure. Nondestructive test methods of different types were used in combination with the numerical modeling and analysis. The onsite tests included visual inspection, tomography, ground penetrating radar, drilling boreholes and coreholes, and the laboratory tests on recovered samples. The results were utilized to identify the current geometry of the structure with foundation, including the hidden geometry of the abutments and piers, and soil and foundation material properties. This data was used to build the numerical models and run computational analyses on a high performance computer cluster to assess the structural integrity of the bridge and foundations including the suitability of the foundation for reuse with a new superstructure and traffic that will increase the load on the foundations. Computational analysis is more cost-effective and gives an advantage of getting more detailed knowledge about the structural response. It also enables to go beyond non-destructive testing and find the failure conditions without destroying the structure under consideration.