New Spread Plasticity Model for Reinforced Concrete Structural Elements Accounting for Both Gravity and Lateral Load Effects

Izadpanah, Mehdi; Habibi, Ali

doi:10.1061/(asce)st.1943-541x.0002016

Cited by 4 publications

(2 citation statements)

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“…In the spread plasticity approach, plastic hinges are extended over a finite length of the member ends that undergo non-linear deformation [ 80 , 81 , 82 , 83 ]. These models can capture the seismic behavior with minimum computational effort.…”

Section: Introductionmentioning

confidence: 99%

“…These models can capture the seismic behavior with minimum computational effort. However, they may be subjected to serious limitations, since it does not account for non-linear axial deformations and assumes that plastic hinges develop only due to flexure [ 83 ]. The spread plasticity models that account for the junction plasticity only are suitable for the low-rise structure (gravity load < 0.8).…”

Section: Introductionmentioning

confidence: 99%

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Review of Modeling Techniques for Analysis and Assessment of RC Beam–Column Joints Subjected to Seismic Loads

et al. 2022

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Beam–column connections are the most critical components of reinforced concrete (RC) structures. They serve as a load transfer path and take a significant portion of the overall shear. Joints in RC structures constructed with no seismic provisions have an insufficient capacity and ductility under lateral loading and can cause the progressive failure of the entire structure. The joint may fail in the shear prior to the connecting beam and column elements. Therefore, several modeling techniques have been devised in the past to capture the non-linear response of such joints. Modeling techniques used to capture the non-linear response of reinforced-concrete-beam–column joints range from simplified lumped plasticity models to detailed fiber-based finite element (FE) models. The macro-modeling technique for joint modeling is highly efficient in terms of the computational effort, analysis time, and computer memory requirements, and is one of the most widely used modeling techniques. The non-linear shear response of the joint panel and interface bond–slip mechanism are concentrated in zero-length linear and rotational springs while the connecting elements are modeled through elastic elements. The shear response of joint panels has also been captured through rigid panel boundary elements with rotational springs. The computational efficiency of these models is significantly high compared to continuum models, as each joint act as a separate supe-element. This paper aims to provide an up-to-date review of macro-modeling techniques for the analysis and assessment of RC-beam–column connections subjected to lateral loads. A thorough understanding of existing models is necessary for developing new mechanically adequate and computationally efficient joint models for the analysis and assessment of deficient RC connections. This paper will provide a basis for further research on the topic and will assist in the modification and optimization of existing models. As each model is critically evaluated, and their respective capabilities and limitations are explored, it should help researchers to improve and build on modeling techniques both in terms of accuracy and computational efficiency.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%