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Authors
Zhang, Zixin
Yarlagadda, Tejeswar
Zheng, Yao
Jiang, Liming https://orcid.org/0000-0001-8112-2330
Usmani, Asif
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Funding
Funding for this research was provided by:
Hong Kong Polytechnic University (P0031564)
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Article History
Received: 2 January 2021
Revised: 9 August 2021
Accepted: 17 August 2021
First Online: 6 September 2021
Declarations
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: The authors declare that no conflict of interest is encountered in this paper.
: MATLAB codes for the simply supported prestressed concrete beam optimized with 23 mm width control and 3:1 strength limit ratio is provided as supplementary materials to the journal. To ease the concern of program convergence, the effect of specific parameters are introduced here: (1) the step-up of penalty <i>p</i> accelerates the formation of optimized topology; (2) too high <i>β</i><sub><i>HS</i></sub> do affect the convergence stability, a reasonable range is recommended (Amir and Shakour ); (3) the width of full-cover tendon filter <i>β</i><sub>fil</sub> is irrelevant to convergence problem; (4) the range of tendon-concrete filter sharpness <i>µ</i><sub>pre</sub> is also recommended (Amir and Shakour ); (5) the epsilon-relaxation coefficient <i>ε</i> is a recommended value (Cheng and Guo ); (6) the value aggregation coefficient <i>η</i> and STM-based stress correction scheme <i>q</i><sub><i>n</i></sub> are both recommended (Yang et al. ). The parameters used in this paper are determined according to these recommendations and similar process can be applied to other case studies.
