scholarly journals Behaviour of Partially Infilled Frames using Finite Element

2020 ◽  
Vol 9 (5) ◽  
pp. 2168-2173
Keyword(s):  
Response Spectrum ◽  
Time History ◽  
Wall Material ◽  
Masonry Walls ◽  
Reinforced Concrete Frame ◽  
Infill Wall ◽  
Concrete Frame ◽  
Partial Infill ◽  
Infill Masonry ◽  
Masonry Infill Wall

This paper presents an explicit behaviour of Reinforced Concrete frame by considering the masonry infill wall material fully and partially in the structure. A two storey 2D frames of six different cases and 10 storey 3D building of four different cases with fully and partially assignment of infill masonry walls. Analysis was performed in E-TABS software for all the 10 cases by generating synthetic earthquake matched time history with response spectrum. The study was carried out the effect of infill wall on the behaviour of column. The results were discussed and maximum storey displacements were taken in to consideration to study the behavior of the structure. The Storey displacements for the ten cases were taken in to account and revealed that higher displacements were observed in the cases with the partial infill and effect on column due to the partial or absence of infill wall adjacent to the column.

scholarly journals PERILAKU LATERAL SIKLIK PORTAL BETON BERTULANG BERISI DINDING BATA MERAH

2018 ◽  
Vol 1 (4) ◽  
pp. 845-856
Author(s):  
Mutia Intan Sari ◽  
Abdullah Abdullah ◽  
Mochammad Afifuddin
Keyword(s):  
Reinforced Concrete ◽  
Brick Masonry ◽  
Experimental Result ◽  
Wall Material ◽  
Base Shear ◽  
Reinforced Concrete Frame ◽  
Infill Wall ◽  
Concrete Frame ◽  
Cyclic Loading Tests ◽  
Masonry Infill Wall

Abstract: Generally, brick masonry is used as infill wall material for houses and buildings. The Infill wall is installed once the structure is constructed, and assumed as the dead load for the structure. In fact, infill wall may contribute significant stiffness to the structure. As a consequent, the structure may develop such higher base shear forces due to the large stiffness of the structure. The purpose of this research is to evaluate the behavior of the reinforced concrete frame specimen with red brick infill wall and the specimen without using any infill wall. The size of the frame specimen is 2350 x 3300 mm, which consists of reinforced concrete bare frame specimen and reinforced concrete frame specimen with brick masonry infill wall. Cyclic loading tests were conducted on the specimens on the top beam of frame by in-plane direction. The displacement loading protocol are performed laterally and determined by the measured maximum of LVDT from the beam-column connection. Based on the experimental result, the increase capacity and the obtained energy dissipation of the infill wall frame specimen is up to 11.65 and 3.54 higher respectively, compared to the bare frame specimen. The decrease of the stiffness and the ductility level of the infill wall specimen is lesser in comparison with the bare frame specimen. The typical failure mechanism of the infill wall specimens is diagonal cracking. Abstrak: Material bahan bangunan pengisi dinding untuk pembangunan rumah tinggal dan gedung umumnya menggunakan bata merah. Dinding pengisi dipasang apabila struktur utama selesai dikerjakan dan dianggap sebagai beban mati. Namun pada kenyataannya struktur bangunan yang memiliki dinding mempunyai kekakuan struktur yang besar. Ditinjau dari aspek kegempaan, struktur bangunan dengan kekakuan yang besar maka semakin besar pula beban gempa yang bekerja. Tujuan dari penelitian ini menganalisis perilaku portal beton bertulang dengan dinding bata merah yang dibandingkan dengan portal beton bertulang tanpa dinding. Pengujian yang dilakukan adalah portal beton bertulang dengan ukuran 2350 × 3300 mm berjumlah 2 sampel yaitu: portal tanpa dinding dan portal berdinding bata merah dengan plasteran. Pengujian portal dilakukan dengan beban lateral siklik dengan arah pembebanan sejajar bidang balok (in plane) pada balok bagian atas portal. Mekanisme pembebanan dilakukan dengan kontrol beban yang ditentukan oleh perpindahan maksimum yang terukur dari LVDT dari join kolom-balok. Hasil penelitian ini menunjukkan terjadinya peningkatan kapasitas dan energi disipasi sebesar 11,65 kali dan 3,54 kali dari portal tanpa dinding. Penurunan kekakuan dan daktilitas yang terjadi lebih kecil dari portal tanpa dinding. Pola kehancuran yang terjadi pada portal berisi dinding bata merah yaitu jenis diagonal cracking

Resistance of Reinforced Concrete Frames with Masonry Infill Walls to In-Plane Vertical Loading

2016 ◽  
Vol 711 ◽  
pp. 982-988
Author(s):  
Alex Brodsky ◽  
David Z. Yankelevsky
Keyword(s):  
Reinforced Concrete ◽  
Failure Modes ◽  
Progressive Collapse ◽  
Lateral Loading ◽  
Masonry Walls ◽  
Reinforced Concrete Frame ◽  
Masonry Infill ◽  
Concrete Frame ◽  
Vertical Loading ◽  
Infill Masonry

Numerous studies have been conducted on the in plane behavior of masonry infill walls to lateral loading simulating earthquake action on buildings. The present study is focused on a problem that has almost not been studied regarding the vertical (opposed to lateral) in-plane action on these walls. This may be of concern when a supporting column of a multi-storey reinforced concrete frame with infill masonry walls undergoes a severe damage due to an extreme loading such as a strong earthquake, car impact or military or terror action in proximity to the column. The loss of the supporting column may cause a fully or partly progressive collapse to a bare reinforced concrete frame, without infill masonry walls. The presence of the infill masonry walls may restrain the process and prevent the development of a progressive collapse. The aim of the present study is to test the in-plane composite action of Reinforced Concrete (RC) frames with infill masonry walls under vertical loading through laboratory experiments and evaluate the contributions of infill masonry walls, in an attempt to examine the infill masonry wall added resistance to the bare frame under these circumstances. Preliminary results of laboratory tests that have been conducted on reinforced concrete infilled frames without a support at their end, under monotonic vertical loading along that column axis will be presented. The observed damages and failure modes under vertical loading are clearly different from the already known failure modes observed in the case of lateral loading.

Seismic Vulnerability Analysis of FRP Retrofitting Industrial Buildings

2015 ◽  
Vol 724 ◽  
pp. 353-357
Author(s):  
Jian Zhu ◽  
Ping Tan ◽  
Pei Ju Chang
Keyword(s):  
Seismic Vulnerability ◽  
Response Spectrum ◽  
Time History ◽  
Seismic Intensity ◽  
Fiber Reinforced Polymers ◽  
Infill Wall ◽  
Intensity Index ◽  
Industrial Buildings ◽  
Dynamic Time ◽  
Masonry Infill Wall

This study focus on derivation of such vulnerability curves using Fiber Reinforced Polymers technologies retrofitted conventional RC industrial frames with masonry infill wall. A set of stochastic earthquake waves which compatible with the response spectrum of China seismic code are created. Dynamic time history analysis is used to compute the random sample of structures. Stochastic damage scatter diagrams based different seismic intensity index are obtained. Seismic vulnerability of FRP-reinforced RC industrial frames is lower than unreinforced frames obviously, and seismic capability of frames using FRP technologies is enhanced especially under major earthquake.

Seismic Fragility Analysis of Mid-Story Isolation and Reduction Structures Based Two Directions

2013 ◽  
Vol 739 ◽  
pp. 309-313 ◽  
Author(s):  
Pei Ju Chang
Keyword(s):  
Fragility Curves ◽  
Response Spectrum ◽  
Time History ◽  
Longitudinal Axis ◽  
Seismic Intensity ◽  
Seismic Fragility ◽  
Infill Wall ◽  
Intensity Index ◽  
History Analysis ◽  
Masonry Infill Wall

This study focus on derivation of such fragility curves using classic mid-story isolation and reduction structures (MIRS) in China metropolis. This study focus on derivation of such fragility curves using conventional industrial frames with masonry infill wall. A set of stochastic earthquake waves compatible with the response spectrum of China seismic code selected to represent the variability in ground motion. Dynamic inelastic time history analysis was used to analyze the random sample of structures. MIRS seismic capability of longitudinal and transversal orientation is different. Stochastic damage scatter diagrams based different seismic intensity index are obtained. Seismic fragility of longitudinal axis (Y axis) is larger than transversal axis (X axis) of frames under major earthquake obviously.

Earthquake Action of Cold Storage Structure

2012 ◽  
Vol 594-597 ◽  
pp. 1713-1719
Author(s):  
Ji Mei Zhang ◽  
Hong Bo Dong
Keyword(s):  
Low Temperature ◽  
Cold Storage ◽  
Response Spectrum ◽  
Time History ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Linear Elastic ◽  
Fast Speed ◽  
Frame Building ◽  
Earthquake Action

In recent years,cold storage which is the central pivot of low temperature circulation of food developes faster overseas.It shows single-story and assembly and fast speed of low –temperature storage.In china it is being developed from multi-storey to single-storey of high goods shelves.Earthquake action of cold storage with reinforced concrete frame building is quantitatively analyzed by using three methods for bottom shearing and mode-superposition response spectrum and linear elastic time history analysis.Applicable condition of method for bottom shearing is verified.The paper aims to do the comparison and analysis of seismic precautionary of six or seven degrees,so as to provide some valuable references to the same type of buildings.

Evaluation of the effects of spectrum-compatible seismic excitations on the response of medium-height reinforced concrete frame buildings

2006 ◽  
Vol 33 (10) ◽  
pp. 1304-1319 ◽  
Author(s):  
Nove Naumoski ◽  
Murat Saatcioglu ◽  
Lan Lin ◽  
Kambiz Amiri-Hormozaki
Keyword(s):  
Reinforced Concrete ◽  
Response Spectrum ◽  
Time History ◽  
Reinforced Concrete Frame ◽  
Seismic Excitations ◽  
Period Range ◽  
Design Spectrum ◽  
Concrete Frame ◽  
Frame Buildings ◽  
Artificial Accelerograms

Spectrum-compatible seismic excitations are required when dynamic time-history analysis is used for determining the response of a structure. This paper presents results from a study on the effects of different types of spectrum-compatible excitations on the response of medium-height reinforced concrete frame buildings. Two six-storey buildings designed for Vancouver and a five-storey building designed for Montréal were used in the study. Nonlinear time-history analyses were conducted by subjecting the buildings to selected ensembles of spectrum-compatible excitations (i.e., accelerograms). The ensembles used in the study included spectrum-compatible artificial accelerograms, simulated stochastic accelerograms, and recorded earthquake accelerograms (i.e., real accelerograms) scaled to the design spectrum ordinate at the fundamental building period and to the area under the design spectrum within the predominant period range of the building. The responses of the buildings resulting from spectrum-compatible artificial accelerograms and those from scaled real accelerograms were found to be quite similar. Based on the results of this study, the scaling of real accelerograms to spectral area is preferred for obtaining spectrum-compatible accelerograms.Key words: seismic, excitation, response, spectrum, accelerogram, building, drift, curvature, ductility.

scholarly journals Behavior of reinforced concrete frame with masonry infill wall subjected to vertical load

2018 ◽  
Vol 171 ◽  
pp. 476-487 ◽  
Author(s):  
Hadi Baghi ◽  
André Oliveira ◽  
Jónatas Valença ◽  
Eduardo Cavaco ◽  
Luís Neves ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Vertical Load ◽  
Reinforced Concrete Frame ◽  
Infill Wall ◽  
Masonry Infill ◽  
Concrete Frame ◽  
Masonry Infill Wall

Seismic Fragility Analysis of RC Industrial Frames Based Stochastic Vibration

2013 ◽  
Vol 717 ◽  
pp. 301-305 ◽  
Author(s):  
Pei Ju Chang ◽  
Jian Zhu
Keyword(s):  
Fragility Curves ◽  
Response Spectrum ◽  
Time History ◽  
Longitudinal Axis ◽  
Seismic Intensity ◽  
Seismic Fragility ◽  
Infill Wall ◽  
Intensity Index ◽  
History Analysis ◽  
Masonry Infill Wall

This study focus on derivation of such fragility curves using conventional industrial frames with masonry infill wall. A set of stochastic earthquake waves compatible with the response spectrum of China seismic code selected to represent the variability in ground motion. Dynamic inelastic time history analysis was used to analyze the random sample of structures. Industrial structural seismic capability of longitudinal and transversal orientation is different. Stochastic damage scatter diagrams based different seismic intensity index are obtained. Seismic fragility of longitudinal axis (X axis) is larger than transversal axis (Y axis) of frames under major earthquake obviously.

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