A Comparative Study of Seismic Performance of RC Frames with Masonry Infills

Oinam, Romanbabu M.; Sugumar, Ruban; Sahoo, Dipti Ranjan

doi:10.1016/j.proeng.2016.12.220

Cited by 10 publications

(2 citation statements)

References 17 publications

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“…e Open System for Earthquake Engineering Simulation (OpenSEES) is a software framework for simulating the seismic response of structural and geotechnical systems. It provides a wide range of element types and material models for nonlinear finite element analysis [56][57][58][59]. According to the quasistatic experiment performed by Zhou et al [11,24], three specimens were tested under the action of horizontal lateral cyclic force, one specimen is a bare frame (PF), one is an infilled RC frame with rigid connection (GWF1), and…”

Section: Simulation and Analysismentioning

confidence: 99%

Research on Improved Equivalent Diagonal Strut Model for Masonry‐Infilled RC Frame with Flexible Connection

Yang

Zhao

et al. 2019

Advances in Civil Engineering

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The reinforced concrete (RC) frame with masonry infill wall is one of the most common structural systems in many countries. It has been widely recognized that the infill wall has significant effects on the seismic performance of RC frame structure. During the Wenchuan earthquake (China 2008), a lot of infilled RC frame structures suffered serious damages due to the detrimental effects brought about by the infill wall rigidly connected to the surrounding frame. In order to solve this problem, flexible connection, introduced by Chinese designers, is recommended by the updated Chinese seismic design code, because of its effect to reduce the unfavorable interaction between infill wall and frame. Although infilled RC frame structure with flexible connection has a lot of advantages, but because of the lack of research, this structure type is seldom used in practical engineering. Therefore, it is of great significance to scientifically investigate and analyze the effects of flexible connection on structure behaviors of infilled RC frame. In this study, a macrofinite element numerical simulation method for infilled RC frame with flexible connection was investigated. Firstly, the effects of connection between infill wall and surrounding frame on in-plane behaviors of infilled RC frame were discussed. Secondly, based on deeply studying the equivalent diagonal strut models for infilled RC frame with rigid connection, an improved equivalent diagonal strut model for infilled RC frame with flexible connection was proposed. Employed with inversion analysis theory, the parameter in the proposed model was estimated through artificial fish swarm algorithm. Finally, applied with the existing experiment results, a case study was conducted to verify the effectiveness and feasibility of the proposed model.

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Section: Simulation and Analysismentioning

confidence: 99%

Research on Improved Equivalent Diagonal Strut Model for Masonry‐Infilled RC Frame with Flexible Connection

Yang

Zhao

et al. 2019

Advances in Civil Engineering

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“…erefore, the composite motion of the infilling materials like a traditional brick wall with the predominant frame can be examined. It [4,16] has been studied that the lateral strength of the infill frame is predominately higher than the bare frame [17,18].…”

Section: Introductionmentioning

confidence: 99%

Study on Performance of Infilled Wall in an RC-Framed Structure Using a Reinforcing Band

Jagadeesan

Sudharsan

Subash

et al. 2022

Advances in Materials Science and Engineering

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Infilled wall is a primary structure which is used in a multistorey RC-framed structure. It is not designed like structural elements, but it is subjected to structural load and response as a heavily damaged element into the building. The main problem of an infilled wall is not actively utilizing in the framed structure and it is not interacted with frame elements. The objective of research is to utilize the infilled wall in the RC-framed structure by improving its performance of behavior. Here, two different types of brick masonry like Autoclaved concrete and clay brick masonry were used as the infilled wall in an RC-framed structure. A singly bay and single storey RC framed structure was cast and tested under a 1/10th scale model by diagonal compressive loading. The specimen was subjected to static loading by a universal testing machine. Infilled wall is weak in tension, so a reinforcing band was used to improve the performance like load carrying capacity, stiffness, ductility, and energy dissipation capacity. Based on the results of the experimental study, it is found that reinforcing band with the infilled wall gives better behavior of the RC-framed structure.

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