Studies on Seismic Performance of Low, Medium and High Rise Reinforced Concrete Frame with Infill

2020 ◽  
Vol 17 (9) ◽  
pp. 4299-4303
Author(s):  
D. Santhosh ◽  
R. Prabhakara ◽  
N. Jayaramappa
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Pushover Analysis ◽  
Computational Time ◽  
Displacement Curve ◽  
Rc Frame ◽  
Reinforced Concrete Frame ◽  
Rc Structures ◽  
High Rise ◽  
Performance Point

This paper studies the pushover analysis of Low, Medium and High Rise Reinforced Concrete (RC) frame with infill. Pushover analysis is nonlinear static procedures for the seismic assessment of Low, Medium and High Rise Reinforced concrete (RC) structures, due to its simplicity, efficiency in modelling and low computational time. Four storey, Eight storey and Twelve storey RC frames with infill models were considered in this analysis. This pushover analysis was carried out for default hinge properties available in program based on FEMA 356. The seismic performance of RC frame with infill was measured in terms of base force and displacement curve, performance point, number of plastic hinges at different performance levels.

The effect of vertical near-field ground motions on the collapse risk of high-rise reinforced concrete frame-core wall structures

2021 ◽  
pp. 136943322110561
Author(s):  
Arsam Taslimi ◽  
Mohsen Tehranizadeh
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Fragility Curves ◽  
Ground Motions ◽  
Reinforced Concrete Frame ◽  
Engineering Structures ◽  
Intensity Measures ◽  
Vertical Excitation ◽  
High Rise ◽  
Wall Structures

According to the observations of past earthquakes, the vertical ground motions have had a striking influence on the engineering structures, especially reinforced concrete ones. Nevertheless, the number of studies on their aftermath is insufficient, and despite some endeavors done by researchers, there is still a shortage of knowledge about the inclusion of vertical excitation on the seismic performance and the collapse probability of RC buildings. Hence, the variation in the collapse risk of three high-rise RC frame-core wall structures when they undergo bi-directional ground motions is discussed. In this paper, incremental dynamic analyses are carried out under two circumstances, including the horizontal (H) and the combined horizontal and vertical (H+V) earthquakes, and the seismic fragility curves are derived. The inter-story drift ratio corresponding to the onset of collapse has also been defined. The buildings collapse risk under the two circumstances is obtained from the risk integral. Results indicate that in the H+V state, structures meet the collapse criteria for lower intensity measures. Thus, the collapse risk increases as the structures are subjected to bi-directional seismic loads, and the consideration of this effect leads to a more accurate evaluation of buildings seismic performance.

Behavior of Low, Medium and High Rise Reinforced Concrete Frame with Infill Using ATENA 2D

2020 ◽  
Vol 17 (9) ◽  
pp. 4287-4293
Author(s):  
D. Santhosh ◽  
R. Prabhakara ◽  
M. D. Ragavendra Prasad
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Nonlinear Behavior ◽  
Masonry Wall ◽  
Nonlinear Behaviour ◽  
Rc Frame ◽  
Reinforced Concrete Frame ◽  
Analysis And Design ◽  
High Rise ◽  
Finite Element Software

The Low, Medium and High rise reinforced concrete (RC) buildings are common in all cities in all countries. Unreinforced masonry wall (URW) is commonly used in low, medium and high rise building as a partition wall both in interior and exterior of building. But structural designers are not considered URW in analysis and design of buildings. This URM wall as an infill plays a very important role in structure subjected to lateral load. So it is very essential to know the nonlinear behavior of low, medium and high rise frame with and without infill. To conduct experiment for understanding the nonlinear behaviour of low, medium and high rise RC frame is very expensive and need good sophisticated testing facilities. With the available many finite element softwares, it is easy to create model and to know the performance of structure. So in this study, a finite element software ATENA 2D (2003) were used to conduct nonlinear analysis for capture nonlinear behaviour of low, medium and high rise RC frame with infill and without infill. Load versus displacement graphs, magnitude of principal compressive stresses, magnitude principal tensile stresses, stress contours, and cracks pattern are used to know the performance of low, medium and high rise RC frame with infill.

Shaking Table Test of Eccentric Reinforced Concrete Frame-Shear Wall Structure Model

2014 ◽  
Vol 584-586 ◽  
pp. 1247-1250
Author(s):  
Bing Li ◽  
Li Na Lu ◽  
Hai Tao Lv ◽  
Xu Fang Li
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Shaking Table Test ◽  
Shear Wall ◽  
Simulation Software ◽  
Shaking Table ◽  
Wall Structure ◽  
Reinforced Concrete Frame ◽  
Element Analysis ◽  
High Rise

Reinforced concrete eccentric frame-shear wall structure has been widely used in engineering. However, this structure is mainly used for high-rise structure, and it is difficult to obtain accurate earthquake response of structure through experimental study. Therefore, simulation software needs to be used for study on seismic performance of high-rise structures. This paper produces useful conclusions for the project through shaking table test and the simulation of seismic performance provided by ANSYS finite element analysis software.

Seismic Performance of High Strength Reinforced Concrete Buildings Evaluated by Nonlinear Pushover and Dynamic Analyses

2016 ◽  
Vol 16 (03) ◽  
pp. 1450107 ◽  
Author(s):  
K. C. Lin ◽  
H. H. Hung ◽  
Y. C. Sung
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Failure Modes ◽  
Plastic Hinge ◽  
Pushover Analysis ◽  
High Strength ◽  
Nonlinear Time History Analysis ◽  
Lumped Mass ◽  
High Rise ◽  
Dynamic Analyses

This paper investigates the combined effect of flexural and shear actions on the failure modes of the high strength reinforced concrete (HRC) members using the proposed algorithm for plastic hinge formation. The accuracy of the present procedure for the HRC columns was verified by comparing the results obtained with those of the cyclic loading tests performed in Japan. To evaluate the seismic performance of the HRC high-rise buildings, a seismic performance checklist for the HRC buildings was recommended. Based on the proposed algorithm for formation of plastic hinges, the seismic performance of HRC buildings based on the static pushover analysis is evaluated. From the results of the pushover analysis, a simplified lumped-mass stick model was developed, which is adopted to evaluate the seismic performance using the nonlinear time history analysis. For the purpose of illustration, the seismic performance of a high-rise building constructed with HRC was investigated by both the nonlinear pushover and nonlinear dynamic analyses using the proposed procedure and concepts. The results of this paper serve as a useful reference for the seismic design and evaluation of HRC high-rise structures.

The Seismic Performance Analysis of Different Forms Beam in High Conversion Structure

2013 ◽  
Vol 353-356 ◽  
pp. 2138-2144
Author(s):  
Xiao Jie Cheng ◽  
Si Qi Wang ◽  
Pei Pei Niu
Keyword(s):  
Seismic Performance ◽  
Seismic Effect ◽  
High Conversion ◽  
Wall Structure ◽  
Displacement Curve ◽  
Base Shear ◽  
High Rise ◽  
Performance Point ◽  
Displacement Angle ◽  
Flat Beam

Based on a high-rise frame shear wall structure with high conversion layer, this essay makes compare among three structural models-wide flat beam, SRC and the common conversion beam by using Midas Building, analyzes seismic performance of three forms of conversion beam under gravity effect and seismic effect in consideration of the force of whole structure, force of conversion component and elastic earthquake, analyzes structure model when the wide flat beam is acted as conversion beam with static elastic-plastic analysis (Pushover) method to get the change of the displacement curve of base shear-vertex and the interbeded displacement angle, finds out the weak parts of the structure, comprehensively evaluates the seismic performance of the structure and put forward the key problems and the solutions through looking for performance point.

A Review of the Seismic Performance for FRP Reinforced RC Frame Joints

2013 ◽  
Vol 353-356 ◽  
pp. 2110-2113
Author(s):  
Zhi Hong Xie ◽  
Jian Hong Zhang ◽  
Li Sha Liu
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Seismic Performance ◽  
Rc Frame ◽  
Reinforced Concrete Frame ◽  
Performance Factors ◽  
Concrete Frame ◽  
Finite Element Numerical Simulation ◽  
And Performance ◽  
Basic Ideas

Reasonably effective methods of FRP strengthening can dramatically improve the ultimate bearing capacity, ductility and seismic performance of reinforced concrete frame joints. This paper, based on domestic and foreign experimental research and finite element numerical simulation which are working at improving bearing capacity and seismic performance of reinforced concrete frame joints, analyzes mechanism and performance factors of RC frame joints reinforced with FRP material, concludes with basic ideas and methods of FRP material RC joints, together with the direction of continuing studies.

New Scheme to Resist Seismic Collapse of RC Frame

2013 ◽  
Vol 753-755 ◽  
pp. 690-693
Author(s):  
Zhi Ping Li ◽  
Jin Xin Hao
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Plastic Hinge ◽  
Reinforced Concrete Structure ◽  
Load Path ◽  
Reinforced Concrete Frame ◽  
Rc Structures ◽  
Seismic Performance Evaluation ◽  
Concrete Frame ◽  
Displacement Based

Earthquake would cause unacceptable damage in reinforced concrete structures. In this paper, two retrofitting methods based on alternative load path are proposed for the reinforced concrete structure. One method is to add steel braces to the structure, and another one is to add tension cables to the structure. Pushover analyses for all frames are carried out using SAP2000. From the analysis results, steel braces or tension cables delay the formation of the first plastic hinge and failure of columns, and can better improve the seismic performance of reinforced concrete frame. The research results can be utilized for displacement-based seismic design and seismic performance evaluation of RC structures.

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