Article
Chemistry, Physical
Chao Feng, Rui Yang, Bin Niu, Xiangpeng Meng
Summary: This paper proposes a new CAD model for lattice material components design, which captures the user's design intent and provides a dual-scale framework for geometry and material distribution representation. Compared with conventional CAD models, the proposed model avoids missing design intent and material information caused by millions of data files. It provides a compact representation at the macroscopic scale and an implicit function representation at the microscopic scale, supporting design intent with minor space costs and solid modeling queries of geometric and material information on each scale.
Article
Construction & Building Technology
Linyun Zhou, Shui Wan
Summary: Strut-and-tie models are commonly used for designing disturbed regions in structural concrete members, and topology optimization methods are adopted for generating these models. However, current methods do not work in many typical disturbed regions, leading to the proposal of a modified optimality criterion.
STRUCTURAL CONCRETE
(2021)
Article
Materials Science, Multidisciplinary
Wenjun Wu, Pai Liu, Yiqiang Wang, Zhan Kang
Summary: This paper introduces a new design of bistable structures that achieve torsional bistability under uniaxial compression. The proposed structure is composed of two co-axis polygonal prisms connected by struts, and torsional bistability is achieved by opposite rotations of the prisms. An analytical model and numerical simulations demonstrate the need for a dual-material design for the inclined and connecting struts to induce bistability.
MATERIALS & DESIGN
(2023)
Article
Engineering, Civil
Mariano Victoria, Concepcion Diaz, Pascual Marti, Osvaldo M. Querin
Summary: This paper presents an extension to the Isolines Topology Design (ITD) algorithm for the topology design of 2D continuum structures under the influence of buckling. The alternative approach incorporates the buckling effect by transforming the buckling topology optimization problem into a stress-based topology design problem. The effectiveness of the new approach is demonstrated through three examples, showing good agreement with existing literature.
Article
Engineering, Marine
Wenpeng Che, Jianwei Chen, Jinglu Cao, Wenling Tian
Summary: This paper studied the performance and failure mechanisms of concrete-filled steel tube (CFST) column sleeve grouting connections through theoretical analysis and finite element simulation. A theoretical model suitable for calculating the axial compression capacity of sleeve grouting connections was proposed, and high-precision numerical models were established to verify its applicability. The results showed that parameters such as shear key height, shape, distance, and grouting material strength significantly affected the performance of the connection.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Wenzheng Qiao, Guorong Chen
Summary: This article introduces an explicit topology optimization method based on moving morphable components for generating strut-and-tie models in concrete structures. By solving a compliance minimization problem, feasible STMs are generated using components that can move, dilate, shrink, overlap, and merge. Design examples demonstrate the effectiveness and reliability of the MMC-based topology optimization method, with investigations into its efficiency and applicability in multiple load cases.
ENGINEERING OPTIMIZATION
(2021)
Article
Engineering, Civil
Shengxin Fan, Yao Zhang, You-Xin Ma, Kang Hai Tana
Summary: This paper proposes a strut-and-tie model for unsymmetrically-loaded deep beams by simplifying the problem and using a minimum strain-energy criterion to define the optimal geometry. The model is validated against test results and finite element models, and is capable of accurately predicting the behavior of both symmetric and unsymmetric deep beams.
Article
Construction & Building Technology
Tuo Zhao, Ammar A. Alshannaq, David W. Scott, Glaucio H. Paulino
Summary: This study presents the development of strut-and-tie models for reinforced concrete deep beams using a general topology optimization framework. The optimized layouts improve the ultimate load and reduce cracking, potentially reducing the required steel volume for deep beams.
ACI STRUCTURAL JOURNAL
(2023)
Article
Engineering, Civil
Mohamed E. El-Zoughiby, Rana E. Amasha, Ahmed A. Ghaleb
Summary: This paper presents the modeling and simplified design equations for reinforced concrete link beams using the strut-and-tie method. A unified general multi-panel strut-and-tie model is proposed, with the first one-panel and two-panel models considered as basic and common. Worked design examples demonstrate the accuracy and feasibility of these models.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Yi Xia, Matthijs Langelaar, Max A. N. Hendriks
Summary: This paper proposes a method to generate multi-load optimization-based Strut-and-Tie (MOST) models and compares the effectiveness and applicability of three alternative approaches for multiple load combinations. The results show that the proposed method is more economical than the other three methods.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Mechanical
Ho Seung Jeong, Sung-Ki Lyu, Sang Hu Park
Summary: In this study, an effective approach for designing a multi-lattice structure was proposed to optimize local densities and strut fillet-joint shape for practical equivalent material properties. By changing the strut diameter and fillet-joint radius based on loading conditions, the equivalent material properties of the MLS were calculated using a computational homogenization method. Results showed that the multi-lattice bending structure had significantly higher strength compared to a uniform BCC lattice structure with the same weight.
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Civil
Wei-Jian Yi, Ye Li, Hui Chen, Zhongguo John Ma, Ke-Jing Zhou, Yuan Huang, Yun Zhou
Summary: This study proposes a shear design equation based on a cracking strut-and-tie model for reinforced concrete D-regions. The equation simplifies the design process, reduces uncertainty, and improves structural reliability, based on regression analysis and simulated test data.
ENGINEERING STRUCTURES
(2022)
Article
Construction & Building Technology
R. Kondalraj, Appa G. Rao
Summary: The efficiency of ACI 318 and AASHTO strut-and-tie models for designing reinforced concrete deep beams without web reinforcement is discussed. ACI 318-14 suggests a higher strut efficiency factor compared to AASHTO and ACI 318-19. The study also presents a linear function of concrete strength for the strut efficiency factor prediction.
ACI STRUCTURAL JOURNAL
(2022)
Article
Engineering, Civil
Shengyu Li, Erwin Lim, Linbai Shen, Yu Hong, Qianhui Pu
Summary: This paper explores the prestress design of the cable-pylon anchorage zone, proposing a modified ESO method to generate a rational STM for guiding the design process. The rationality and effectiveness of the proposed prestress design method is validated through a full-scale model test.
JOURNAL OF BRIDGE ENGINEERING
(2021)
Review
Construction & Building Technology
Imad Shakir Abbood
Summary: This article comprehensively reviews the strut-and-tie model (STM) and its applications in reinforced concrete deep beams. It presents the basic concepts, principles, and historical development of STM, and covers various aspects such as strut strength, node strength, and tie strength. The article summarizes the formulas and parameters proposed by design codes and researchers, and addresses the challenges and recommendations for future research in this field.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Computer Science, Interdisciplinary Applications
Mariano Victoria, Osvaldo M. Querin, Concepcion Diaz, Pascual Marti
ADVANCES IN ENGINEERING SOFTWARE
(2016)
Article
Engineering, Multidisciplinary
A. Cordero, P. Marti, M. Victoria
REVISTA INTERNACIONAL DE METODOS NUMERICOS PARA CALCULO Y DISENO EN INGENIERIA
(2018)
Article
Construction & Building Technology
Concepcion Diaz, Mariano Victoria, Osvaldo M. Querin, Pascual Marti
INTERNATIONAL JOURNAL OF STEEL STRUCTURES
(2018)
Article
Computer Science, Interdisciplinary Applications
Mariano Victoria, Osvaldo M. Querin, Pascual Marti
ADVANCES IN ENGINEERING SOFTWARE
(2011)
Article
Engineering, Multidisciplinary
Mariano Victoria, Osvaldo M. Querin, Concepcion Diaz, Pascual Marti
ENGINEERING OPTIMIZATION
(2014)
Article
Engineering, Multidisciplinary
Osvaldo M. Querin, Mariano Victoria, Concepcion Diaz, Pascual Marti
ENGINEERING OPTIMIZATION
(2015)
Article
Construction & Building Technology
Concepcion Diaz, Mariano Victoria, Pascual Marti, Osvaldo M. Querin
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2011)
Review
Construction & Building Technology
Concepcion Diaz, Pascual Marti, Mariano Victoria, Osvaldo M. Querin
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2011)
Article
Construction & Building Technology
Concepcion Diaz, Mariano Victoria, Osvaldo M. Querin, Pascual Marti
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2012)
Article
Engineering, Multidisciplinary
J. Martinez-Frutos, P. Marti
REVISTA INTERNACIONAL DE METODOS NUMERICOS PARA CALCULO Y DISENO EN INGENIERIA
(2014)