scholarly journals Seismic Performance of L-Shaped Building Through Plan Irregularities

2021 ◽  
Vol 1197 (1) ◽  
pp. 012050
Author(s):  
Yash Chhatani ◽  
Prashant Y Pawade ◽  
Kuldeep R Dabhekar ◽  
Isha P khedikar
Keyword(s):  
Seismic Performance ◽  
Frame Structure ◽  
Regular Model ◽  
Story Drift ◽  
Set Up

Abstract Tremors are called one in everything about preeminent erratic and annihilating of every cataclysmic event, be that as it may, the flighty idea of the incidence of those seismic tremors makes it inconvenient to hinder loss of living souls and annihilation of properties, if the constructions don’t seem to be designed to oppose such seismic tremor powers. During this paper, a shot has been made to review set up irregularities specifically torsional irregularity and re-entrant corners within the frame structure. These inconsistencies square measure made according to IS 1893:2016 (part1) code. Irregular model and regular model were considered which were analyzed exploitation ETABS 2018 to see the unstable reaction of the structure. The models were analyzed exploitation static and dynamic ways, parameters thought-about being displacement, story drift, torsional irregularity.

scholarly journals Seismic Retrofitting of a Structure with Soft Storey and Floating Column.

2021 ◽  
Vol 1197 (1) ◽  
pp. 012073
Author(s):  
Shubham Velani ◽  
Kuldeep R Dabhekar ◽  
Prashant Y Pawade ◽  
Isha P khedikar
Keyword(s):  
Seismic Retrofitting ◽  
Frame Structure ◽  
Soft Storey ◽  
Regular Model ◽  
Set Up

Abstract Tremors are called one in everything about preeminent erratic and annihilating of every cataclysmic event, be that as it may, the flighty idea of the incidence of those seismic tremors makes it inconvenient to hinder loss of living souls and annihilation of properties, if the constructions don’t seem to be designed to oppose such seismic tremor powers. During this paper, a shot has been made to review set up irregularities specifically torsional irregularity and re-entrant corners within the frame structure. These inconsistencies square measure made according to IS 1893:2016 (part1) code. Irregular model and regular model were considered which were analyzed exploitation ETABS 2018 to see the unstable reaction of the structure. The models were analyzed exploitation static and dynamic ways, parameters thought-about being displacement, storey drift, torsional irregularity.

Based on ANSYS Buckling-Restrained Brace Frame Structure Shock Absorption Analysis

2013 ◽  
Vol 477-478 ◽  
pp. 651-654
Author(s):  
Li Jun He ◽  
Yong Yao ◽  
Yun Peng Chu
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Structural Damage ◽  
Structural Response ◽  
Frame Structure ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Story Drift ◽  
Design Earthquake ◽  
Rare Earthquake

Whether the design of new structure or reinforcement of the existing projects, structure earthquakereduction design is always the focus of research at home and abroad. The buckling restrained braces won the unanimous endorsement of the engineering sector with good energy dissipation capacity and simpleeasy construction process. This Paper based on the ANSYS analysis the structural response through simulated the bucklingrestrained brace frame structure and the general reinforced concrete frame on effect of the rare earthquake or design earthquake, and analysis the bucklingrestrained braces on the seismic performance of reinforced concrete frame structure. The analysis results show that the seismic performance of reinforced concrete frame with bucklingrestrained braces well, it can effectively reduce the maximum story drift and control structural damage. Therefore, Bucklingrestrained Brace should be used extensively to reinforced concrete framework .

scholarly journals The Effect of Shear Wall Configuration on Seismic Performance in the Hotel Building

2018 ◽  
Vol 159 ◽  
pp. 02074
Author(s):  
Daud Rahmat Wiyono ◽  
Roi Milyardi ◽  
Cindrawaty Lesmana
Keyword(s):  
Seismic Performance ◽  
Structural Damage ◽  
Shear Wall ◽  
Lateral Load ◽  
Dual System ◽  
Frame Structure ◽  
Seismic Load ◽  
Time Period ◽  
Story Drift ◽  
Slender Columns

Earthquake effects on the buildings must be evaluated within the current standard provision. The shape of building gives a unique seismic performance on the structure. In typical hotel building, the lobby area in the first floor usually has some slender columns due to the needs of higher clearance to give a widely space area. The slender columns in the big hall tends to create asymmetric building and torsional behaviour on seismic performance. This behaviour is one of the most frequent source of structural damage and failure. One of the solution is to add shear wall in elevator area. The purpose of this paper is to seek the effect of shear wall configuration in elevator area on the seismic performance through numerical analysis. There are some requirements for structural analysis under seismic load, such as: time period, modal analysis, story drift, and other details. In building with dual system, story shear in frame at each level must carry over 25 % of total story shear at that level. In this study, an eleven-storey hotel building located in Tanjung Pinang City, Indonesia was evaluated due to gravity and seismic load. For the building, the requirements of the time period from the standard are 1.21 sec (minimum) and 1.70 sec (maximum). As results, two-sided shear wall in X direction and two-sided shear wall in Y direction is recommended because it has the best seismic performance, time period below the minimum, story drift below allowable, the dynamic lateral load has meet minimum requirement (85% Static Load), and frame structure has carry more than 25% lateral load in dual system building.

Influence of Transition Layer Position on Seismic Performance in Multi-Story Buildings of SRC-S Vertical Hybrid Structures

2012 ◽  
Vol 226-228 ◽  
pp. 916-919
Author(s):  
Hao Huo ◽  
Ping Zhou Cao ◽  
Kai Wu ◽  
Ming Bao Min
Keyword(s):  
Seismic Performance ◽  
Transition Layer ◽  
Abrupt Change ◽  
Great Influence ◽  
Tall Buildings ◽  
Frame Structure ◽  
Hybrid Structures ◽  
Steel Reinforced Concrete ◽  
Story Drift ◽  
Layer Position

When vertical hybrid structures of steel reinforced concrete-steel (SRC-S) are used in multi-story and tall buildings, the connection between the two structural systems would probably dissatisfy the seismic request because of the abrupt change of stiffness. Setting up a stiffness-transition-layer is an efficient way to improve the seismic performance. In this paper, elastic and elastic-plastic analysis was conducted on a six-floor frame structure by Midas software. In the building, concrete encased shape steel was applied as the transition layer. By comparative analysis, we tried to find out how different transition layer positions could affect seismic performance in SRC-S vertical hybrid structures. Given the results, transition layer position has great influence on the story drift angle, story drift and the development of the plastic hinges. The suggestion on transition layer position was proposed to provide a reference for seismic design.

Statistical Analyses of Steel Frame Structure Drift Angle

2012 ◽  
Vol 204-208 ◽  
pp. 1102-1108
Author(s):  
Huan Huan Xia ◽  
Wen Feng Liu ◽  
Yan Qiang Gao
Keyword(s):  
Seismic Performance ◽  
Test Data ◽  
Steel Frame ◽  
Statistical Analyses ◽  
Frame Structure ◽  
Limit Values ◽  
Drift Angle ◽  
Performance Levels ◽  
Story Drift ◽  
Steel Frame Structure

Story drift angle is one of the main indexes to test the seismic performance of building structures. American seismic code of buildings FEMA273/274 respectively provide the limit values of story drift angle in two kinds structural systems, steel frame and steel-support frame. This article collects 40 groups steel frame test data and 24 groups steel-support frame test data. By the statistical analyses of story drift angle and the comparison to the drift angle limit values in different countries, the seismic performance levels of steel frame structure are divided into six,Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴand Ⅵ, and the suggested limit values of story drift angle corresponding with performance levels are given.

Study on Rational Ratios of Lateral Stiffness for Masonry Building with Frame Structure at First Two Stories

2012 ◽  
Vol 174-177 ◽  
pp. 2012-2015
Author(s):  
Xiao Long Zhou ◽  
Ying Min Li ◽  
Lin Bo Song ◽  
Qian Tan
Keyword(s):  
Seismic Performance ◽  
Time History ◽  
Shear Wall ◽  
Calculation Model ◽  
Frame Structure ◽  
Wall Structure ◽  
Masonry Building ◽  
Lateral Stiffness ◽  
Stiffness Ratio ◽  
Lateral Stiffness Ratio

There are two typical seismic damage characteristics to the masonry building with frame shear wall structure at first two stories, and the lateral stiffness ratio of the third storey to the second storey is one of the key factors mostly affecting the seismic performance of this kind of building. However, some factors are not considered sufficiently in current Chinese seismic codes. According to the theory of performance-based seismic design, the seismic performance of this kind of structure is analyzed in this paper by taking time-history analysis on models which with different storey stiffness ratios. The results show that when the lateral stiffness ratio controlled in a reasonable range, the upper masonry deformation can be ensured in a range of elastic roughly, and the bottom frame can be guaranteed to have sufficient deformation and energy dissipation capacity. Finally, according to the seismic performance characteristics of masonry building with frame shear wall structure at first two stories, especially the characteristics under strong earthquakes, a method of simplified calculation model for the upper masonry is discussed in this paper.

Analysis on the Seismic Behavior of Extended End-Plate Connections of Steel Frame Structure

2012 ◽  
Vol 193-194 ◽  
pp. 1405-1413 ◽  
Author(s):  
Zhu Ling Yan ◽  
Bao Long Cui ◽  
Ke Zhang
Keyword(s):  
Finite Element ◽  
Cyclic Loading ◽  
Seismic Performance ◽  
Seismic Behavior ◽  
Frame Structure ◽  
End Plate ◽  
Rigid Connection ◽  
Extended End Plate ◽  
Plate Connections ◽  
Steel Frame Structure

This paper conducts analysis on beam-column extended end-plate semi-rigid connection joint concerning monotonic loading and cyclic loading of finite element through ANSYS program, mainly discussed the influence of parameters such as the form of end plate stiffening rib on anti-seismic performance of joint.

The Effect of Damping on Seismic Performance of Steel Frame

2014 ◽  
Vol 580-583 ◽  
pp. 1477-1480
Author(s):  
Xin Wu Wang ◽  
Chang Jiao Hu
Keyword(s):  
Seismic Performance ◽  
Frame Analysis ◽  
Dynamic Test ◽  
Steel Frame ◽  
Structural Damping ◽  
Panel Zone ◽  
Story Drift

To study the effect of damping on seismic performance of steel frame, using the pseudo dynamic test by inputting damping and no damping to analyze the seismic performance of semi-rigid steel frame. Analysis was focused on the effect of damping on the panel zone strain, story drift and interlayer force.The conclusion was that under the more severe earthquake, the structural damping had effects on the seismic performance of semi-rigid steel frame.

Sign in / Sign up

Export Citation Format

Share Document