Sammendrag
The Maridal culvert is a part of the Ring road around Oslo, see Figure (1). The total length of approximately 340 m has been cast in sections of 15 m length. Three sections, including four walls, three slabs and two foundations, have been instrumented with strain gauges and temperature sensors, and temperature and strains in the structure have been recorded from the casting. Instrumentation was carried out by the Norwegian IPACS partners: Selmer, Directorate of roads, and NTNU. The results are reported in other IPACS-reports. The structures are modeled and analyzed by the general finite element program DIANA. Temperature, stress and strain development during the first seven days of hardening are calculated and presented here. The main objective is to verify material models and calculation methods against the measurements. Input parameters for numerical calculation were determined in a comprehensive laboratory test program at NTNU. When all uncertainties in the modelling of hardening concrete behaviour as well as uncertainties in the measuring methods are taken into account, it can be concluded that the results of the present simulations are satisfying.
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