Journal of Civil Engineering
Vol. 35 No. 1 (2020)

Strut and tie model optimization for reinforced concrete deep beam using genetic algorithm

Bambang Piscesa (Unknown)
Tavio Tavio (Unknown)



Article Info

Publish Date
23 Jul 2025

Abstract

This paper presents strut and tie model structural optimization of reinforced concrete deep beam using geneticalgorithm. Genetic algorithm is used as the optimization platform as it does not require differentiation of the exact mathematicalformulation to get the optimum solution. The force analysis is carried out using two-dimensional linear finite element methodwith truss element. The struts and ties design are based on ACI 318. One RC deep beam example is presented as an example.During optimization, there are two constraints which consisted of strength of the member alone and combination withdeformation limit of the nodes. The stress ratio for both struts and ties are set to not exceed unity while the deformation waslimited to 2.0 mm. From the optimization analysis, it can be concluded that genetic algorithm can be used to get the mostoptimum structural configuration which yield the most economical solution for design purposes. On the other hand, it is foundout that optimizing only the strength alone can yield a more economical solution compared to the design references. However,if deformation constraint is added in the optimization parameters, larger deep beam depth is required to satisfy the deformationlimits.

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Journal Info

Abbrev

jce

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

Description

Journal of Civil Engineering (eISSN 2579-9029/pISSN 2086-1206) is a new journal that preceded by the previous Civil Engineering Department ITS Journal which was well known as Jurnal Teknologi dan Rekayasa Sipil (TORSI). TORSI journal was established in March 1981. In 2009, TORSI journal name was ...