scholarly journals Masonry performance in earthquakes

1974 ◽  
Vol 7 (4) ◽  
pp. 149-166
Author(s):  
O. A. Glogau
Keyword(s):  
Earthquake Damage ◽  
Structural Behaviour ◽  
Damage Potential ◽  
Timber Construction

Past and current methods describing the damage potential of an earthquake are reviewed and discussed in relation to actual earthquake damage. The performance of a number of structures subjected to intense shaking is described with particular reference to their detailing. Examples are given showing the effect of infilling walls on structural behaviour. Veneer on timber construction is discussed. The points made are illustrated with figures and photographs.

The Whittier Narrows, California Earthquake of October 1, 1987—Response of Elevators

1988 ◽  
Vol 4 (2) ◽  
pp. 367-375 ◽  
Author(s):  
A. J. Schiff
Keyword(s):  
Seismic Performance ◽  
Coming Out ◽  
Earthquake Damage ◽  
Damage Potential ◽  
Relative Damage ◽  
San Fernando ◽  
Protection Devices ◽  
Earthquake Protection ◽  
Code Provisions

The Whittier Narrows earthquake has been the first earthquake to affect a significant number and many of the same elevator systems that now conform to the more stringent code provisions introduced after the 1971 San Fernando earthquake. While the relative damage potential of the two earthquakes is not now known, much less manchine room and rope damage was observed. The incidence of counterweights coming out of their guide rails was much less than it was from the San Fernando earthquake but still quite common. The performance and operation of elevator earthquake protection devices, seismic switches and counterweight derail detection devices, did not fully meet expectations but they did significantly reduce damage and the potential for injury. There was some inconsistency in the triggering of seismic switches. The seismic performance of elevators suggest that several changes to codes should be considered including a requirement to report earthquake damage and prevent seismic devices from being reset by unauthorized personnel.

Towards Sustainable Timber Construction Through the Application of Wood-Wood Connections

2020 ◽  
Author(s):  
Y. Weinand
Keyword(s):  
Numerical Methods ◽  
Free Form ◽  
Assembly Process ◽  
Structural Elements ◽  
Structural Behaviour ◽  
Timber Construction ◽  
Depth Study ◽  
Environmental Requirements ◽  
Ancient Wood ◽  
Simple Assembly

<p>This paper introduces a series of sustainable timber construction using wood-wood connections, which are driven from environmental requirements. These constructions are based on geometries like origami and free-form instead of standard structural elements. In addition, to predict the structural behaviour, the simplified numerical methods for accurately modelling are used. The aim of these case studies is to better explore the value of wood-wood connections as inheritance of ancient culture and extend research on their integration into design processes. Through the design, manufacturing and assembly stage, the connections are investigated as a driver for architectural forms. The utilisation of these innovative connections with minimised metal connectors ensures the rapid, precise and simple assembly process. With in-depth study and innovation of the ancient wood-wood connections, experience in prefabricated timber structure not only offers new geometrical opportunities, but also expands the understanding of integration of ancient and modern cultures.</p>

EFFECT ON HARDNESS and MICRO STRUCTURAL BEHAVIOUR OF TOOL STEEL AFTER HEAT TREATMENT PROCESS

2017 ◽  
Vol 4 (24) ◽  
Author(s):  
Karanbir Singh ◽  
Aditya Chhabra ◽  
Vaibhav Kapoor ◽  
Vaibhav Kapoor
Keyword(s):  
Heat Treatment ◽  
Empirical Study ◽  
Tool Steel ◽  
Treatment Process ◽  
Heat Treatment Process ◽  
Structural Behaviour ◽  
Treatment Processes ◽  
En 31

This study is conducted to analyze the effect on the Hardness and Micro Structural Behaviour of three Sample Grades of Tool Steel i.e. EN-31, EN-8, and D3 after Heat Treatment Processes Such As Annealing, Normalizing, and Hardening and Tempering. The purpose of Selecting Tool Steel is Because Tool Steel is Mostly Used in the Manufacturing Industry.This study is based upon the empirical study which means it is derived from experiment and observation rather than theory.

Timber Construction Manual

2004 ◽  
Author(s):  
Thomas Herzog ◽  
Julius Natterer ◽  
Roland Schweitzer ◽  
Michael Volz ◽  
Wolfgang Winter
Keyword(s):  
Timber Construction
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