Numerical study on reinforced concrete beam-column frames in progressive collapse

Xu, Lei

doi:10.32657/10356/54945

Cited by 2 publications

(2 citation statements)

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“…For measuring the material strain in RC members, strain gauges are generally pasted on the surface of structural members or on the reinforcement inside the members (Kenneth et al [6], Wang [58], Long [59], Adhikary et al [7]). Zhang [60] used the fiber Bragg grating strain sensor to measure the concrete strain for further deriving the real-time strain rate during the whole loading process, and the acceleration sensor was employed for measuring the horizontal and vertical acceleration of floors.…”

Section: Measurement Methods For Dynamic Loading Testmentioning

confidence: 99%

Experimental, Theoretical and Numerical Research Progress on Dynamic Behaviors of RC Structural Members

Li¹,

Gao²,

Li³

et al. 2023

Preprint

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In this paper, the research progress on dynamic behaviors of RC structural members is reviewed from experimental, theoretical and numerical perspectives. Firstly, the basic overview, measurement methods, main conclusions and current limitations of available dynamic loading tests are presented. Then the theoretical studies on the dynamic constitutive models of RC materials, the dynamic increase factor (DIF) model for concrete and reinforcing steel and the proposed modified models of dynamic behavior parameter at the structural member level are summarized. Finally, the available modelling approach and the method for incorporating the dynamic effect in numerical simulation of RC structures are reviewed. Moreover, a brief introduction is made to the dynamic hysteretic model established on the experimental data, which provides an alternative approach to consider the dynamic effect beside the commonly used DIF method. This paper provides valuable reference for experimental studies and numerical simulations on the dynamic behaviors of RC structures, and also puts forward some issues that need to be solved in the future research works..

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Section: Measurement Methods For Dynamic Loading Testmentioning

confidence: 99%

Experimental, Theoretical and Numerical Research Progress on Dynamic Behaviors of RC Structural Members

Li¹,

Gao²,

Li³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The figure shows beams and columns internal forces equilibrium inside the joint by forming both diagonal tensile and compressive forces. Proper joints are required to assure RC frame ductile behaviour by enabling the adjoining elements to reach their ultimate capacity (Long, 2013). Joints have different types based on the number of terminated columns and beams at its location (interior, exterior, and knee) as presented in Figure 2 (ACI 318-08); each joint requires a specific reinforcement scheme based on its geometry as shown in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

A Review on Reinforced Concrete Beam Column Joint: Role, Modeling and Recent Details

Abdelwahed

2020

Journal of Engineering Research is an international, peer-revie

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Reinforced concrete frames are commonly used systems in buildings. The philosophy behind the proper design for this type of frames is to provide them with sufficient ductility. The structural ductility of a frame is mainly determined by the ductility of its components, i.e., the beams, columns, and joints forming this frame. Beam-column joint role in a building is to connect its components together and enable these components to reach their ultimate resistance. Its stiffness, strength, and ductility are key characteristics needed to guarantee efficient building behaviour under the action of different loads. Previous research attributed some building’s damage to inadequate reinforcement details of its joints. Deficiency in joints performance is related to inadequate codes guidelines or to bad construction practice. This paper reviewed the provisions of three different codes (ACI 318-08, Eurocode 8, and ECP-203) concerning the proper design and detailing of different joints. This review study aims to introduce a wider overview on the assessment of joints performance in buildings under different loading scenarios. This data base will enable practicing engineers to identify the joint key parameters with providing different analytical procedures. This study investigates joints in different configurations. These include planner joints, joints with transverse beams, and the common joint situation with the presence of both transverse beams and slab. This survey includes experimental and analytical representation of the previous mentioned joints. Different retrofitting schemes are presented as well for every considered joint. This review allows to identify the evolution of joints capacity in function of reinforcement detailing, level of axial stresses, and loading history. The analysis shows that a decrease in joint resistance can be recovered by using i) haunches brackets, ii) FRP, or iii) post tension metal strip.

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Numerical study on reinforced concrete beam-column frames in progressive collapse

Abstract: Width of the concrete strut ܾ Width of a cross-section ܾ Joint thickness ܾ Width of the column cross-section ܾ ௦ Width of the concrete strut ݀ Depth of a cross-section ݀ Bar diameter ‫ݔ݀‬ An infinitesimal element along steel reinforcement

Cited by 2 publications

References 85 publications

Experimental, Theoretical and Numerical Research Progress on Dynamic Behaviors of RC Structural Members

Experimental, Theoretical and Numerical Research Progress on Dynamic Behaviors of RC Structural Members

A Review on Reinforced Concrete Beam Column Joint: Role, Modeling and Recent Details

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