Python Code for the Time-Varying Behavior (TVB) Model for Effects of Bridge Redecking
Adhikari, Beeva
Adhikari, Beeva
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Abstract
A time-varying behavior (TVB) model was developed in python to assess the effects of deck replacement on the long-term behavior of precast/prestressed concrete girder bridges. The model can be used to estimate concrete bridge behavior over time using a time-step analysis approach to calculate incremental changes in girder behavior through several lifespan stages, which are delineated by changes in loading or boundary conditions. Model outputs include bridge deflections, prestress force, and concrete stresses over time. Model outputs can be accessed at different points along the bridge span and at different depths of the bridge. The model structure and underlying assumptions are described in Adhikari et al. (under review) and, for an earlier version of the model, in Adhikari, Lequesne, and Collins (2024).
Description
To run an analysis for one bridge, download and unzip the code file and then:
1. Create a folder with the name of the bridge. Example "1new".
2. Update the input data on the sheet "Data_Input" in the file "Inputs.xlsm" and store it in the folder created in step 1.
3. Open script "iteration.py" and change name of "count" variable to the name of the analysis folder. Example "count = '1new'".
4. Run the code. Analysis results will be stored in the same folder. Example: "1new/"
Date
2024-10-31