scholarly journals Evaluation of the Egyptian seismic code approach to estimation of lateral drift

2012 ◽  
Author(s):  
S. H. ElKassas ◽  
M. A. Haroun
Keyword(s):  
Seismic Code ◽  
Lateral Drift

scholarly journals Relevant lessons learned from the earthquakes El Asnam, 10/10/1980 and Zemmouri, 05/21/2003 on the paraseismic prevention in Algeria

2018 ◽  
Vol 149 ◽  
pp. 02040
Author(s):  
Yamina Ait-Meziane ◽  
Rania Souici ◽  
Farah Lazzali
Keyword(s):  
Risk Reduction ◽  
Seismic Risk ◽  
Lessons Learned ◽  
Risk Prevention ◽  
Loss Of Life ◽  
Seismic Code ◽  
Existing Structures ◽  
Fundamental Goal ◽  
Algerian Seismic Code ◽  
The Impact

In the field of seismic risk prevention in Algeria, the earthquake of El Asnam, 10/10/1980 is the triggering event and that of Zemmouri 21/05/2003 the accelerating element of the policy already in place. These two major events have been rich in information, as they are among the most studied internationally. The approaches and the development of methods for seismic risk reduction are based largely on feedback. The fundamental goal of seismic risk reduction is to avoid loss of life, which is mainly due to the partial or total collapse of structures. Exploiting lessons learned from past earthquakes is reflected in code requirements for new projects and approaches to vulnerability estimation for existing structures. In this paper, we give a description of the characteristics of the two events. The analysis of pathologies observed and the impact on the Algerian seismic code is discussed.

scholarly journals Generation of artificial seismic wave and structure-TMD parameter optimization based on the new seismic code considering site soil properties

2018 ◽  
Vol 1053 ◽  
pp. 012023
Author(s):  
Xianjie Wang ◽  
Mengjie Xiang ◽  
Yanqiu Dong ◽  
Shiqi Long ◽  
Sizhao Yang ◽  
...  
Keyword(s):  
Soil Properties ◽  
Parameter Optimization ◽  
Seismic Wave ◽  
Seismic Code

A Framework to Evaluate the Benefit of Seismic Upgrading

2019 ◽  
Vol 35 (2) ◽  
pp. 1045-1051 ◽  
Author(s):  
Clotaire Michel ◽  
Blaise Duvernay ◽  
Ehrfried Kölz ◽  
Navid Jamali ◽  
Pierino Lestuzzi
Keyword(s):  
Existing Buildings ◽  
Design Code ◽  
Absolute Level ◽  
Safety Level ◽  
Seismic Code ◽  
Practical Applications ◽  
The Absolute ◽  
Cost Efficient ◽  
The One ◽  
Level Of Risk

The framework to evaluate the benefit of seismic upgrading of Galanis et al. (2018) is compared to that present in the Swiss seismic code for existing buildings since 2004, updated in 2017. To illustrate the comparison, the example building of Galanis et al. (2018) in Zurich is analyzed following the Swiss code. It is shown that the concept of Degree of Seismic Upgrade is not relevant for practical applications. More generally, the approach of Galanis et al. (2018) would be more suited to a risk-based framework (like the Swiss code) than to a performance-based framework like the one they followed. For existing buildings, we claim that it is appropriate to define the retrofitting strategy based on the absolute level of risk, whereas targeting the safety level of the design code is rarely cost-efficient.

scholarly journals Performance of an Existing Reinforced Concrete Building Designed in Accordance to Older Indonesian Seismic Code: A Case Study for a Hotel in Kupang, Indonesia

2018 ◽  
Vol 20 (1) ◽  
pp. 35
Author(s):  
Pamuda Pudjisuryadi ◽  
Benjamin Lumantarna ◽  
Ryan Setiawan ◽  
Christian Handoko
Keyword(s):  
Plastic Hinge ◽  
Time History ◽  
Nonlinear Time History Analysis ◽  
Seismic Load ◽  
Ground Acceleration ◽  
Seismic Code ◽  
Damage Level ◽  
History Analysis ◽  
Nonlinear Time History ◽  
Seismic Hazard Map

The recent seismic code SNI 1726-2012 is significantly different compared to the older code SNI 1726-2002. The seismic hazard map was significantly changed and the level of maximum considered earthquake was significantly increased. Therefore, buildings designed according to outdated code may not resist the higher demand required by newer code. In this study, seismic performance of Hotel X in Kupang, Indonesia which was designed based on SNI-1726-2002 is investigated. The structure was analyzed using Nonlinear Time History Analysis. The seismic load used was a spectrum consistent ground acceleration generated from El-Centro 18 May 1940 North-South component in accordance to SNI 1726-2012. The results show that Hotel X can resist maximum considered earthquake required by SNI 1726-2012. The maximum drift ratio is 0.81% which is lower than the limit set by FEMA 356-2000 (2%). Plastic hinge damage level is also lower than the allowance in ACMC 2001.

Behaviour of slender concrete shear walls with high-strength reinforcement under reversed cyclic loading.

2021 ◽  
Author(s):  
Nima Aghniaey ◽  
Murat Saatcioglu ◽  
Hassan Aoude
Keyword(s):  
Large Scale ◽  
Shear Walls ◽  
High Strength ◽  
Shear Wall ◽  
Analytical Investigation ◽  
Seismic Behaviour ◽  
Drift Capacity ◽  
Lateral Drift ◽  
Experimental Findings ◽  
Reversed Cyclic

Research on seismic behaviour of shear walls with high-strength steel is limited. A combined experimental and analytical investigation was conducted to assess seismic behaviour of flexure-dominant shear walls. A large-scale concrete shear wall with Grade 690 MPa (ASTM A1035) reinforcement and 84 MPa concrete was tested under simulated seismic loading. The wall was a ¼ -scale of a 6-storey shear wall, with 4.53 m height and 1.45 m length. It sustained a lateral drift of 1.8% prior to developing failure due to the rupturing of longitudinal reinforcement. This is 35% less than the drift capacity of a companion wall reinforced with 400 MPa reinforcement tested earlier. VecTor2 software was used to conduct an analytical parametric study to expand the experimental findings. The results indicate that the reinforcement grade has a significant impact on strength, ductility and hysteretic behaviour of shear walls.

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