RESEARCH ON SUITABLE TIME STEP TO FORECAST TRI AN RESERVOIR INLFOW IN DONG NAI RIVER BASIN USING ARTIFICIAL NEURAL NETWORK MODEL
Published In: 9TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): LE VAN DUC
Abstract: Artificial Neural Network (ANN) model has been successfully being used to predict the river flow for rainfall-runoff process. The important question including how long the forecasting time step should be, which rainfall stations should be selected, which discharge and rainfall data at different time steps should be used for the input layer most suitably to forecast reservoir inflow with highest accuracy. Focusing these questions, hereinafter, ANN model was used to forecast inflow into Tri An reservoir in Dong Nai River Basin, Vietnam. Research results showed that six main rainfall stations including Bao Loc, Da Lat, Da Te, Di Linh, Dai Nga, Lam Dong; and the inflows into Tri An reservoir at current and previous time steps, directly affected forecasting inflow; and the appropriate time step to forecast the inflow into Tri An reservoir is from 7 days to 10 days. This is shown by the accuracy, Efficiency Index (EI) in network training period obtaining 90.83% and 89.65%, respectively; and
- Publication Date: 21-Jul-2019
- DOI: 10.15224/978-1-63248-173-3-02
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RELATIONSHIP BETWEEN ENERGY DISSIPATION AND COLUMN UPLIFT IN SIMPLE 3D STRUCTURE DURING DYNAMIC LOADING
Published In: 9TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): ASSAD RASHID , MAJID ALI , NAKHSHAB AJAZ
Abstract: There is a new trend to allow uplift in structures to have maximum energy dissipation during strong ground motion. This aspect needs to be studied in detail, particularly in three dimensional structures. To start with, a prototype 3D structure is considered. In this work, a relationship is developed between column uplift and energy dissipation for a 3D prototype structure during harmonic loading. The simple 550 mm high single storey structure consists of a top steel plate (500 mm x 500 mm and 5 mm thickness) with four corner aluminum columns (each having size of 30 mm x 30 mm x 3 mm). The structure will be simulated under harmonic loadings with two options: i. all four columns will be fixed, and ii. three columns will be fixed and fourth one will be allowed to have a maximum uplift of 5 mm. Relative comparison will be made between the two options. Column response and uplift will be measured. Detail discussions will be made on relative response of structures. This study will help in und
- Publication Date: 21-Jul-2019
- DOI: 10.15224/978-1-63248-173-3-03
- Views: 0
- Downloads: 0