Strut-and-Tie Design Methodology for Three-Dimensional Reinforced Concrete Structures

Leu, Liang‐Jenq; Huang, Chang‐Wei; Chen, Chuin-Shan; Liao, Ying-Po

doi:10.1061/(asce)0733-9445(2006)132:6(929)

Cited by 52 publications

(14 citation statements)

References 12 publications

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“…This design tool was developed by some investigators, such as, Schlaich, Ritter, Mörsch and Leonhardt. In recent years, a number of research works have been carried out in this field, such as those by Leu et al (2006), Brown and Bayrak (2008) and Park and Kuchma (2007).…”

Section: Application Of the Strut-and-tie Model To The Beams With Dismentioning

confidence: 99%

Bending moments in D-regions of reinforced concrete beams

Carmo¹,

Lopes²

2011

Proceedings of the Institution of Civil Engineers - Structures

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This paper presents a study of the behaviour of D-regions in reinforced concrete frames. Within the study, 12 twospan beams were tested to failure. The type of discontinuity imposed on the test beams reflects some common layouts that take place in nodes of actual reinforced concrete frames. The beams, 6 m long, were divided into two series (a first set had six beams with no crossing column and a second set had six beams with a crossing column at the inner support). The strength and the deformation capacity in beams with geometric discontinuities were studied as well as the influence of the column presence in the development of the plastic hinges. The main results are presented and discussed: evolution of the bending moment diagrams, moment-curvature relationships, plastic rotation behaviour, stiffness of the connection between the two spans and moment redistribution. As explained in the paper, the presence of a geometric discontinuity at the inner support region leads to a sharp decreasing of the ultimate moment at this region and consequently to a great decreasing of the ultimate load of the beam. Other consequences of having discontinuity in beams are explained. A strut-and-tie model was developed and presented. This model could be useful for the design D-regions.

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Section: Application Of the Strut-and-tie Model To The Beams With Dismentioning

confidence: 99%

Bending moments in D-regions of reinforced concrete beams

Carmo¹,

Lopes²

2011

Proceedings of the Institution of Civil Engineers - Structures

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“…The development of strut-and-tie models using topology optimization techniques has attracted the attentions of other researchers (Ramm et al 1997;Ali and White 2001;Biondini et al 2001;Guan 2005;Leu et al 2006;Kwak and Noh 2006).…”

Section: Practical Applicationsmentioning

confidence: 99%

Performance-Based Optimization: A Review

Liang

2007

Advances in Structural Engineering

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ABSTRACT:The performance-based optimization (PBO) method has recently been developed for topology design of continuum structures with stress, displacement and mean compliance constraints. The PBO method incorporates the finite element analysis, modern structural optimization theory and performance-based design concepts into a single scheme to automatically generate optimal designs of continuum structures. Performance indices are used to monitor the performance optimization history of topologies while performance-based optimality criteria are employed to identify the optimum from the optimization process. The performance characteristics of a structure in an optimization process are fully captured. The PBO technique allows the designer to tailor the design to a specific performance level required by the owner. This paper reviews the state-of-the-art development of automated performance-based optimal design techniques for topology design of continuum structures.Several practical design examples are provided to demonstrate the effectiveness and validity of the PBO technology as an advanced design tool.

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“…Typically, Kwak and Noh [10], Liang et al [11] generated the strut-and-tie model of two-dimensional RC structures by using the evolutionary structural optimization (ESO) method. Leu et al [12] further extended the application of ESO to three-dimensional RC members. Bruggi [13] resorted the minimum compliance topology optimization to determine the preliminary truss-like patterns for STM.…”

Section: Introductionmentioning

confidence: 99%