Optimal Design of Circular Concrete Water Tanks by MCMC Subset Simulation Method

Subject Areas : Analysis, design and construction of water structures

Mohammad Aghaee ¹ (, Department of Civil Engineering, Azad University of Najaf-Abad, Isfahan, Iran)
Yasin Aghaee-Shalmani ² (Assistant Prof of Hydraulic Structures, Department of Mechanical and Civil Engineering, Khomeinishahr Branch, Islamic Azad University, Isfahan, Iran.)

Received: 2023-06-25 Accepted : 2023-10-09 Published : 2023-10-14

Keywords: Reliability, optimization, probabilistic constraints, RBDO, MCMC,

Abstract :

Today, one of the favorite subjects of structural engineering researchers is the methods based on the optimization of structures called RBDO, or the optimization based on the reliability of structures. In this field, optimization problems are designed and optimized according to probabilistic constraints. In the current research, the problem of optimizing the circular water tank has been optimally designed. The target function in this research is the cost of building a reinforced concrete tank, and its possible limitations include resistance and serviceability limitations such as the ratio of demand to capacity, the amount of crack width, and deformations of the structure. Designing resistance and serviceability criteria is Regulation 123 of the country's management and planning organization. Finally, to show the efficiency and proper performance of the MCMC simulation and optimization method used in this research to solve the problem of tank design, a water tank with a volume of 113 m³ has been investigated. Also, the modeling of this reservoir has been done in SAP2000 software and computer programming by MCMC method in MATLAB software.

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