Causes and Effects of Delay in Strengthening Projects by Shear Wall and Steel Bracing

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Haghnezhad, Mina | 2016

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Type of Document: M.Sc. Thesis
Language: English
Document No: 49152 (53)
University: Sharif University of Technology, International Campus, Kish Island
Department: Science and Engineering
Advisor(s): Khaloo, Alireza
Abstract:
This research discusses the delay in strengthening projects by shear wall and steel bracing. It studied importance of causes and effects of delay in such projects. Forty-four causes were identified and classified by source into nine groups. Eleven negative effects of delay were known in this research. A field survey was conducted through a structured questionnaire including 22 owners, 40 contractors, 40 university's professors who have a PhD degree in structural or earthquake engineering, 35 consultant engineers, and 37 supervisor engineers in Mazandaran and Tehran. Relative Importance Index technique (RII) and statistical analysis by (SPSS 22) were used to analysis data and present statistical measures and to calculate the importance index and ranking of the causes and effects and to examine correlation between them. Spearman's correlation test was performed to examine the relation between the factors affecting construction time. The correlation results and hypothesis testing showed that generally there is a relation between different causes of delay. There is also a relation between causes of delay and negative effects
Keywords:
Shear Walls ; Steel Brace ; Delay ; Construction Delay ; Causes Delay ; Strengthening Projects

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