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Reliability And Effect Of Partially Restrained Wood Shear Walls, John Joseph Gruber Jan 2012

Reliability And Effect Of Partially Restrained Wood Shear Walls, John Joseph Gruber

Wayne State University Dissertations

ABSTRACT

RELIABILITY AND EFFECT OF PARTIALLY RESTRAINED WOOD SHEAR WALLS

by

JOHN J. GRUBER

MARCH 2012

Advisor: Dr. Gongkang Fu

Major: Civil Engineering

Degree: Doctor or Philosophy

The prescriptive design of the most widely used residential building code in the United States, the IRC, allows the use of partially restrained wood shear walls to resist wind and seismic loads. Wind load is the most common controlling lateral design load for these structures. In contrast, the complimenting building code, the IBC, requires either a restraining dead load or a mechanical hold down device to resist overturning. To prescribe a safe structure, …


Reliability Model For Ductile Hybrid Frp Rebar Using Randomly Dispersed Chopped Fibers, Bashar Ramzi Behnam Jan 2012

Reliability Model For Ductile Hybrid Frp Rebar Using Randomly Dispersed Chopped Fibers, Bashar Ramzi Behnam

Wayne State University Dissertations

RELIABILITY MODEL FOR DUCTILE HYBRID FRP REBAR USING RANDOMLY DISPERSED CHOPPED FIBERS

Fiber reinforced polymer composites or simply FRP composites have become more attractive to civil engineers in the last two decades due to their unique mechanical properties. However, there are many obstacles such as low elasticity modulus, non-ductile behavior, high cost of the fibers, high manufacturing costs, and absence of rigorous characterization of the uncertainties of the mechanical properties that restrict the use of these composites. However, when FRP composites are used to develop reinforcing rebars in concrete structural members to replace the conventional steel, a huge benefit can …


Analysis And Modeling Of Roofer And Steel Worker Fall Accidents, Hulya Cakan Jan 2012

Analysis And Modeling Of Roofer And Steel Worker Fall Accidents, Hulya Cakan

Wayne State University Dissertations

" ABSTRACT "

" ANALYSIS AND MODELING OF"

" ROOFER AND STEEL WORKER FALL ACCIDENTS"

by

" Hulya Cakan"

" August 2012"

" Advisor: " Dr. Mumtaz Usmen

" Major: " Civil and Environmental Engineering

" Degree: " Doctor of Philosophy

There are more than nine million construction workers in the US. Roofers and steel workers are the highest risk construction trades according to BLS, and fall from elevation accounts for a large percentage of fatalities and injuries among the construction trades.

In this study, 2114 OSHA accident case reports involving roofers and steel workers were …