scholarly journals Modelling imperfections in unreinforced masonry structures: Discrete element simulations and scale model experiments of a pavilion vault

2021 ◽  
Vol 228 ◽  
pp. 111499
Author(s):  
Alessandro Dell'Endice ◽  
Antonino Iannuzzo ◽  
Matthew J. DeJong ◽  
Tom Van Mele ◽  
Philippe Block
Keyword(s):  
Discrete Element ◽  
Unreinforced Masonry ◽  
Scale Model ◽  
Masonry Structures ◽  
Model Experiments ◽  
Discrete Element Simulations

Experimental Study for SPAR Type Floating Offshore Wind Turbine With Blade-Pitch Control

2013 ◽  
Author(s):  
Toshiki Chujo ◽  
Yoshimasa Minami ◽  
Tadashi Nimura ◽  
Shigesuke Ishida
Keyword(s):  
Wind Turbine ◽  
Wind Farm ◽  
Offshore Wind ◽  
Scale Model ◽  
Offshore Wind Turbine ◽  
Experimental Proof ◽  
Pitch Control ◽  
Model Experiments ◽  
North Eastern ◽  
North Eastern Part

The experimental proof of the floating wind turbine has been started off Goto Islands in Japan. Furthermore, the project of floating wind farm is afoot off Fukushima Prof. in north eastern part of Japan. It is essential for realization of the floating wind farm to comprehend its safety, electric generating property and motion in waves and wind. The scale model experiments are effective to catch the characteristic of floating wind turbines. Authors have mainly carried out scale model experiments with wind turbine models on SPAR buoy type floaters. The wind turbine models have blade-pitch control mechanism and authors focused attention on the effect of blade-pitch control on both the motion of floater and fluctuation of rotor speed. In this paper, the results of scale model experiments are discussed from the aspect of motion of floater and the effect of blade-pitch control.

Fundamentals of scale model experiments

JOM ◽  
1957 ◽  
Vol 9 (10) ◽  
pp. 1353-1358
Author(s):  
W. O. Philbrook
Keyword(s):  
Scale Model ◽  
Model Experiments

The Benefits of a Seismic Retrofit Program for Commercial Unreinforced Masonry Structures: Salt Lake County, Utah

1993 ◽  
Vol 9 (1) ◽  
pp. 1-10
Author(s):  
Philip C. Emmi ◽  
Carl A. Horton
Keyword(s):  
Salt Lake ◽  
Exposure Period ◽  
Seismic Retrofit ◽  
Unreinforced Masonry ◽  
Masonry Structures ◽  
Damage Functions ◽  
Lake County ◽  
Evaluation Time ◽  
Comparative Risk ◽  
Uniform Code

This paper assesses the benefits of a seismic retrofit program for commercial unreinforced masonry structures (CURMs) in Salt Lake County, Utah. A comparative risk assessment embedded in a geographic information systems is the method used. A policy evaluation time horizon of twenty years is set. Future rates of demolition and rehabilitation, with and without a retrofit policy, are assumed. Damage functions for ordinary and retrofitted URMs are used to assess losses having a 10 percent chance of being exceeded over a 50-year exposure period. With a retrofit program, expected losses are reduced by 57 percent or more than a quarter billion dollars when compared to the no-policy scenario. Expected injuries and fatalities are reduced by more than 80 percent. These are minimal benefits expected from enforcement of the seismic provisions of the Uniform Code of Building Conservation.

Multi-scale analysis of masonry structures based on discrete element method

2016 ◽  
pp. 11-24 ◽  
Author(s):  
X.L. Gu ◽  
H. Zhang ◽  
J.Y. Jia ◽  
X. Li ◽  
G.L. Chen
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Masonry Structures ◽  
Scale Analysis ◽  
Multi Scale ◽  
Multi Scale Analysis ◽  
Element Method
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