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Now showing items 41-50 of 171
Stadium vibration assessment for serviceability considering the vibration duration
(
Canadian Society for Civil Engineering
, 2017 , Conference Paper)
Vibration problems in grandstand structures have been getting more attention due to increasing slenderness of architectural components and the complexity of crowd loading for structural designers. The vibration serviceability ...
Assessment of tire-pavement noise by using on-board sound intensity (Obsi) method in the state of qatar
(
CRC Press/Balkema
, 2017 , Conference Paper)
Tire-pavement noise is the dominant source of traffic noise especially at medium and high speeds. Thus, various transportation agencies and researchers are actively investigating for establishment of accurate test methods ...
A semi-analytical beam model for the vibration of railway tracks
(
Academic Press
, 2017 , Article)
The high frequency dynamic behaviour of railway tracks, in both vertical and lateral directions, strongly affects the generation of rolling noise as well as other phenomena such as rail corrugation. An improved semi-analytical ...
Nonexplosive Deconstruction of Steel Girder Highway Bridges
(
American Society of Civil Engineers (ASCE)
, 2017 , Article)
While the transportation system of the United States rapidly ages and expands, there is increasing demand for the demolition, replacement, modification, or rehabilitation of existing bridges; all of these actions require ...
Recycling of Local Qatar’s Steel Slag and Gravel Deposits in Road Construction
(
OMICS International
, 2014 , Article)
Every year, the State of Qatar generates about 400,000 tons of steel slag and another 500,000 tons of gravel as a result of steel manufacturing and washing sand, respectively. The two materials (by-products) are not fully ...
The Effect of Aluminium Dross on Mechanical and Corrosion Properties of Concrete
(
OMICS International
, 2014 , Article)
It is the objective of this project is to investigate the mechanical and chemical behaviour of new concrete type obtained by adding aluminium dross which is an impure aluminium mixture that results from metals melting and ...
Assessment of abnormally low tenders: a multinomial logistic regression approach
(
Taylor and Francis Ltd.
, 2017 , Article)
This study was performed in order to reveal factors affecting abnormally low tenders (ALTs) and to minimize negative effects of them. A thorough literature review was carried out to observe past research about the reasons ...
Analysis of change orders in Qatari construction projects
(
Taylor and Francis Ltd.
, 2017 , Article)
Change orders affect the performance of construction projects and may induce significant cost overruns. The paper identifies the main causes/factors that lead to change orders in Qatari construction projects. It also ...
Locating leaks in water mains using noise loggers
(
American Society of Civil Engineers (ASCE)
, 2016 , Article)
Because of their potential danger to public health, economic loss, environmental damage, and energy waste, underground water pipelines leaks have received more attention globally. Researchers have proposed active leakage ...
Measuring construction materials price fluctuation risk
(
Canadian Society for Civil Engineering
, 2013 , Conference Paper)
Construction projects costs are believed to be highly susceptible to a combination of internal and external factors. One of these factors is the prices of construction materials and the risk of their fluctuation. This paper ...