scholarly journals The Behaviours of the Brick-Masonry Infilled RC Frame Structure under Reversed Cyclic Lateral Loading

2018 ◽  
Vol 8 (6) ◽  
pp. 2428
Author(s):  
Maidiawati Maidiawati ◽  
Yasushi Sanada ◽  
Jafril Tanjung
Keyword(s):  
Brick Masonry ◽  
Lateral Loading ◽  
Frame Structure ◽  
Rc Frame ◽  
Rc Frame Structure ◽  
Reversed Cyclic

scholarly journals Behaviour of Reinforced Concrete Frames with Central Opening Masonry Infill under Lateral Reversed Cyclic Loading.

2019 ◽  
Vol 258 ◽  
pp. 05009
Author(s):  
Maidiawati ◽  
Jafril Tanjung ◽  
Yulia Hayatfi ◽  
Hamdeni Medriosa
Keyword(s):  
Seismic Performance ◽  
Brick Masonry ◽  
Lateral Loading ◽  
Rc Frame ◽  
Clay Brick ◽  
Seismic Behaviour ◽  
Masonry Infills ◽  
Central Opening ◽  
Lateral Strength ◽  
Reversed Cyclic

This paper will describe the seismic behaviour of masonry infilled RC frame with a central opening structure under reversed cyclic lateral loading. To achieve the purpose of this study, four 1/4-scale single story and single bay RC frame specimens were tested, i.e. one bare frame, one clay brick masonry infilled RC frame without opening and two clay brick masonry infills with a central opening in infills. The ratios of opening size to panel area were 25% and 40%. Through reversed cyclic lateral loading tests, the seismic performance of RC frames with a central opening brick masonry infills was investigated. As the results, significant distinctions of failure mechanism, lateral strength, stiffness, and ductility were observed between these specimens. In the case of infills with a central opening, the cracks sprouted and developed at the corners of the opening. Although the presence of the opening in infill reduces the lateral strength and stiffness overall structure, the brick infilled frames with a central opening of 25% and 40% of panel area show better seismic performance as compared to the bare frame.

Global-Local Analysis for a Lateral-Loading Test on a Real RC Frame Structure

2013 ◽  
Vol 16 (3) ◽  
pp. 441-450
Author(s):  
Jian-Guang Yue ◽  
Jiang Qian ◽  
Tuo Lei ◽  
Liang Lu ◽  
Xi-Lin Lu
Keyword(s):  
Lateral Loading ◽  
Frame Structure ◽  
Local Analysis ◽  
Rc Frame ◽  
Loading Test ◽  
Rc Frame Structure

Analysis on the Effect of Filler Wall to the Dynamic Characteristics and Storey Displacement of RC Frame Structure

2011 ◽  
Vol 255-260 ◽  
pp. 644-648
Author(s):  
Yan Xia Ye ◽  
Hua Huang ◽  
Dong Wei Li
Keyword(s):  
Dynamic Characteristics ◽  
Seismic Waves ◽  
Great Influence ◽  
Reduction Factor ◽  
Frame Structure ◽  
Vibration Modes ◽  
Rc Frame ◽  
Soft Storey ◽  
Rc Frame Structure ◽  
Rc Frame Structures

Comparative analyses of twenty-eight finite element structures with filler walls were established to study dynamic characteristics of RC frame structures under seismic waves. The results of these analyses show that filler walls have little influence on vibration modes of the structure. But as a result of soft storey in the bottom of building caused by reduction of the filler walls, vibration modes have a great influence. As the stiffness of filler wall decrease, the stiffness of soft storey decrease shapely, vibration mode curve becomes much smoother. Considering the filler wall has influence on the vibration periods of framework, the reduction factor of 0.7 should be taken. The influence of filler wall to the value of lateral drift and storey displacement angle of frame can not be ignored. The main effect factors to the dynamic characteristics of framework are included quantity, location, material of the fill wall and the selection of seismic waves.

Research on the Collapse Performance of RC Frame Structure

2014 ◽  
Vol 556-562 ◽  
pp. 712-715
Author(s):  
Jing Zhao ◽  
Jing Zhao ◽  
Xing Wang Liu
Keyword(s):  
Reinforced Concrete ◽  
Frame Structure ◽  
Rc Frame ◽  
Hydraulic Actuator ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Load Paths ◽  
Rc Frame Structure ◽  
Gravity Load ◽  
Middle Column

In collapse-resistant design of a structure under accidental local action, it is important to understand the failure mechanism and alternative load paths. In this paper, a pseudo-static experimental method is proposed. Based on which, the collapse of frame structure was simulated with testing a 1/3 scale; 4-bay and 3-story plane reinforced concrete frame. In the experience, the middle column of the bottom floor was replaced by mechanical jacks to simulate its failure, and the simulated superstructure’s gravity load acted on the column of the top floor by adopting a servo-hydraulic actuator with force –controlled mode.

scholarly journals Cyclic behavior of the R/C frames with reinforced masonry infills

2020 ◽  
Vol 156 ◽  
pp. 05014
Author(s):  
Jafril Tanjung ◽  
Maidiawati
Keyword(s):  
Lateral Displacement ◽  
Brick Masonry ◽  
Frame Structure ◽  
Cyclic Behavior ◽  
Cyclic Loads ◽  
Seismic Capacity ◽  
Masonry Infill ◽  
Masonry Infills ◽  
Experimental Works ◽  
Reversed Cyclic

This study focuses on the experimental works to define the behavior of the reinforced concrete (R/C) frame model with the strengthening of the brick masonry infill by using the embedded reinforcement bars subjected to lateral reversed cyclic loads. A previous study by applying the lateral monotonic static loads showed that the embedded reinforcement bars increased the lateral capacity of the R/C frame and also delayed the failure of the brick masonry infill and R/C frame structure as well. However, in order to define its seismic capacity, a lateral reversed cyclic loading is required. The experimental works in this study were conducted by preparing and testing the 1/4 scaled-down R/C frame specimens represented the first story of the middle multi-story commonly constructed in the earthquake-prone area such as West Sumatera, Indonesia. The R/C frame specimens were two R/C frames with brick masonry infills where one of them strengthened by the embedded reinforced bars. All specimens were tested for applying the lateral reversed cyclic loads. The applied lateral load, the lateral displacement, the progressive cracks, and the failure mode of the specimens were observed and recorded during experimental works. As it was expected, the presence of the embedded reinforced bars in the brick masonry infills increases the seismic capacity and stiffness of the R/C specimens and also delayed the failure of the specimens. The experimental results in this study imply the simple strengthening method for the brick masonry infills.

Seismic Damage Analysis and the Study of Reinforcement Measures for RC Frame Structure Building in Civil Engineering

2012 ◽  
Vol 568 ◽  
pp. 85-88
Author(s):  
Ming Gao
Keyword(s):  
Structural Damage ◽  
Civil Engineering ◽  
Seismic Damage ◽  
Frame Structure ◽  
Bottom Plate ◽  
Rc Frame ◽  
Structure Building ◽  
Damage Degree ◽  
Rc Frame Structure ◽  
Reinforcement Measures

In 5·12 Wenchuan earthquake, most of the buildings were damaged at different degrees in Mianyang. To analysis seismic damage of RC frame structure building, and investigate its reinforcement situation，the results show that: For destruction of frame column or bottom frame structure column, enlarge section method is used mostly for reinforcement in civil engineering；To serious damage of affiliated structure such as filler wall and Parapet, most of them will be demolished and built again, and add constructional column; To the situation of concrete bottom plate with crack, paste carbon fiber sheet or bottom plant steel was used depending on the structural damage degree, and jet concrete for strengthening.

The behaviour Analysis of RC Frame Structure under Explosion Loading

2010 ◽  
Vol 97 (28) ◽  
pp. 25-32
Author(s):  
Marin Lupoae ◽  
Carmen Bucur ◽  
Cătălin Baciu
Keyword(s):  
Frame Structure ◽  
Rc Frame ◽  
Behaviour Analysis ◽  
Rc Frame Structure ◽  
Explosion Loading

scholarly journals Research on Improved Equivalent Diagonal Strut Model for Masonry-Infilled RC Frame with Flexible Connection

2019 ◽  
Vol 2019 ◽  
pp. 1-18
Author(s):  
Guang Yang ◽  
Erfeng Zhao ◽  
Xiaoya Li ◽  
Emad Norouzzadeh Tochaei ◽  
Kan Kan ◽  
...  
Keyword(s):  
Simulation Method ◽  
Structure Type ◽  
Frame Structure ◽  
Rc Frame ◽  
Infill Wall ◽  
Artificial Fish Swarm Algorithm ◽  
Rc Frame Structure ◽  
Proposed Model ◽  
Seismic Design Code ◽  
Artificial Fish Swarm

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.

Analysis of Seismic Appraisal Evaluation of Existing RC Frame Structure Used for Primary and Secondary Schools in Kunming

2011 ◽  
Vol 255-260 ◽  
pp. 2632-2636
Author(s):  
Zhong Wei Liu ◽  
Yu Bai ◽  
Xiang Hui Xiong ◽  
Jun Ting Li
Keyword(s):  
Statistical Analysis ◽  
Secondary School ◽  
Secondary Schools ◽  
Frame Structure ◽  
Earthquake Resistance ◽  
Rc Frame ◽  
Rc Frame Structure ◽  
Primary And Secondary School

Based on the appraisal reports of primary and secondary school in Kunming and the statistical analysis of RC frame structure buildings, evaluation of earthquake resistance capacity was given. Problems affecting functions of the RC frame structure were analyzed to facilitate the reconstruction and fetrofit of this sort of RC frame structure.

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