Nonlinear seismic responses and lateral force transfer mechanisms of RC frames with different infill configurations

Yuen, Y.P.; Kuang, Jingming

doi:10.1016/j.engstruct.2015.02.031

Cited by 65 publications

(23 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The symmetrically arranged and tight-fit infill panels may serve as the first line of earthquake defence. However, as frequently observed in many moderate and strong earthquake events, tight-fit URM infilled frames exhibited poor performance due to premature shear failure in the columns [16,18,19], or complete collapse of the infill panels. With this concept, the URM infill behaviour can be simplified and considered as an equivalent diagonal strut.…”

Section: Introductionmentioning

confidence: 82%

Low‐seismic damage strategies for infilled RC frames: shake‐table tests

Zhang

Kuang

Yuen

2017

Earthq Engng Struct Dyn

Self Cite

View full text Add to dashboard Cite

Summary Unreinforced masonry (URM) infill panels are widely used as partitions in RC frames and typically considered as non‐structural elements in the design process. However, observations from recent major earthquakes have shown that under seismic excitation, the structural interaction between columns and infill walls can significantly alter the structural behaviour, thus causing catastrophic consequences. The purpose of this research was to propose and test an innovative low seismic damage detailing method, which isolates the infill panel from bounding columns with finite width vertical gaps during the infill panel construction phase and deploys steel wire connections in mortar layers anchored to columns. Taking into account the similitude requirements, a total of six one‐third scale, single‐storey single‐bay RC frames with different infill configurations and flexible connection details were carefully designed and tested on a shake‐table. Three real earthquake records were selected and scaled to ascending intensity levels and used as input signals. A series of thorough investigations including dynamic characteristics, hysteretic behaviour, failure mechanisms, out‐of‐plane vulnerabilities and the effect of different gap filling materials and load transfer mechanisms were rigorously studied. The experimental results indicate that the undesirable interaction between infill panels and bounding frame is significantly reduced using the proposed low seismic damage detailing concept. Direct shear failure of columns at an early stage is prevented, and structural redundancy at high levels of excitation can be provided. In general, the structural stability and integrity, and displacement ductility of infilled RC frames can remarkably be improved. Copyright © 2017 John Wiley & Sons, Ltd.

show abstract

Section: Introductionmentioning

confidence: 82%

Low‐seismic damage strategies for infilled RC frames: shake‐table tests

Zhang

Kuang

Yuen

2017

Earthq Engng Struct Dyn

Self Cite

View full text Add to dashboard Cite

show abstract

“…The strength and bracing action of infills not only alter the local mechanical characteristics but also the overall dynamic characteristics of structures [14][15][16][17][18][19][20][21][22]. These structural action modifications can be detrimental to the seismic performance of the buildings resulting in unexpected damage, such as weak-and soft-storey failures, torsion failure and short-column failure [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Designing infilled reinforced concrete frames with the ‘strong frame-weak infill’ principle

Huang

Guo

Kuang

2016

Engineering Structures

Self Cite

View full text Add to dashboard Cite

“…Mallick and Severn (1967) first applied finite element modeling on infilled frames for the calculation of the elastic stiffness of one-bay single-story infilled frames, taking also into account the separation and slip between frame and infill. Since then, a number of refined micro-models have been suggested for detailed elastic or inelastic analysis (Koutromanos et al, 2011;Moaveni et al, 2013;Yuen and Kuang, 2015).…”

Section: Finite Element Models: Micro-modeling Of Infillmentioning

confidence: 99%

“…Typical examples are the irregular distribution of infills (Negro and Taylor, 1996;Negro and Colombo, 1997) and the case of partial-height infill walls that do not extend to the full height of the column ( Fig. 1 and 2) which may result in columns experiencing non-ductile shear failure rather than responding in a predominantly flexural manner (Moretti and Tassios, 2006;2007;Yuen and Kuang, 2015).…”

Section: Introductionmentioning

confidence: 99%

Seismic Design of Masonry and Reinforced Concrete Infilled Frames: A Comprehensive Overview

Moretti¹

2015

American Journal of Engineering and Applied Sciences

View full text Add to dashboard Cite

Despite the extensive research on the seismic behavior of infilled frames since 1960's, there is no general consensus towards a unified approach. Purpose of this study is to review the existing analytical and experimental research, as well as code provisions, on masonry and on reinforced concrete infilled frames. The basic characteristics of infilled frames and how these affect seismic performance are summed up. Different approaches of the equivalent strut, broadly used for modeling of the infilled frames, are thoroughly discussed.

show abstract

Nonlinear seismic responses and lateral force transfer mechanisms of RC frames with different infill configurations

Cited by 65 publications

References 25 publications

Low‐seismic damage strategies for infilled RC frames: shake‐table tests

Low‐seismic damage strategies for infilled RC frames: shake‐table tests

Designing infilled reinforced concrete frames with the ‘strong frame-weak infill’ principle

Seismic Design of Masonry and Reinforced Concrete Infilled Frames: A Comprehensive Overview

Contact Info

Product

Resources

About