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Conferences, Lectures, & Seminars
Events for February
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Astani Department of Civil and Environmental Engineering along with UCLA Department of Civil and Environmental Engineering
Fri, Feb 06, 2015 @ 03:00 PM - 04:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Guangying Zhu, "Judy", Astani CEE Ph.D. Candidate
Talk Title: Three-Dimensional (3D) Soil Structure Interaction with Normal-Plane P-Wave Incidence: Rigid Foundation
Abstract:
The presentation is about an analytic solution of a three-dimensional Soil-Structural Interaction (3D SSI) model in which the building and foundation are idealized respectively to be cylindrical thin-rod and rigid hemisphere. The ground is a stress-free elastic, isotropic, homogenous half-space, and excitation is vertical plane P-incident wave. Analytic three-dimensional (3D) solutions are presented which satisfy the stress-free boundary conditions at the half-space surface. Foundation motions, relative responses of building and surface displacement of soil around building are analyzed and discussed. A comparison with related two-dimensional (2D) SSI close-form solution is also described.
Location: Seeley G. Mudd Building (SGM) - 101
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Astani Department CEE Ph.D. Seminar
Fri, Feb 13, 2015 @ 03:00 PM - 04:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: MINA SUGINO, Graduate School of Engineering, Kyoto University, Japan
Talk Title: Evaluation of dynamic behavior and seismic capacity of
Abstract: Many old wooden buildings collapsed in Kobe earthquake in 1995 or recent inland shallow earthquakes. In these earthquakes, âpulse-like ground motionsâ have been observed which caused severe damage to buildings. Meanwhile, there are many traditional wooden buildings forming a historical townscape in Japan. However, little is known about structural properties of traditional wooden buildings affect the response of the buildings against pulse-like ground motion and few buildings are conducted seismic capacity evaluation.
The objective of my research is to evaluate dynamic behavior of traditional wooden buildings and establish simplified maximum response evaluation method against pulse-like ground motions.
To understand which parameters of pulse-like ground motion affect the response of buildings dominantly, I have proposed a procedure to characterize pulse-like ground motions to simplified
waves as shown in Fig.1 consisting of only simple parameter; duration time, predominant period and maximum velocity.
Shaking table test of traditional wooden frames has been conducted to confirm the dynamic behavior of traditional wooden frames against pulse-like ground motion. From shaking table test
results, it is shown that equivalent natural period which is calculated from response acceleration can be useful to evaluate maximum displacement of wood frame as shown in Fig.2.
To establish simplified maximum response evaluation method, I have suggested a regression equation of dynamic deformation properties of traditional wooden buildings what equivalent natural frequency varies according to maximum deformation angle as shown in Fig.3 from seismic observation, shaking table test and static lateral loading test. Maximum response against expected pulse-like ground motion is easily evaluated from natural frequency which is obtained from microtremor measurement and dynamic deformation properties of traditional wooden buildings applying capacity spectrum method.
Location: Seeley G. Mudd Building (SGM) - 101
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Spring 2015 Environmental Engineering Seminar Series
Fri, Feb 27, 2015 @ 03:00 PM - 05:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Jim Mihelcic, University of South Florida
Talk Title: Envisioning a Better World: The Making of Community and Globally Impactful Engineers
Host: Katie Russo
Location: Seeley G. Mudd Building (SGM) - 101
Audiences: Everyone Is Invited
Contact: Kaela Berry
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Astani Civil and Environmental Engineering Seminar
Fri, Feb 27, 2015 @ 04:00 PM - 05:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. Jim Mihelcic, University of South Florida
Talk Title: Envisioning a Better World: The Making of Community and Globally Impactful Engineers
Abstract: Welcome to the vision, a world where all have access to sanitation, potable water, and safe indoor air; where all children are able to learn in well built classrooms; where families no longer suffer from disease, starvation, and poverty; where renewable energy has replaced fossil fuels and engineers are part of the solution. In this talk Professor Mihelcic will provide his vision of training globally competent scientists and engineers, and also show what a water, sanitation, & hygiene (WASH) engineer does in a developing world setting. He will conclude by telling the story behind the cover of his book: Field Guide in Environmental Engineering for Development Workers: Water, Sanitation, Indoor Air and Environmental Engineering: Fundamentals, Sustainability, Design (ASCE Press, 2009) which includes a forward by President Jimmy Carter.
Biography: Dr. Mihelcic is director of an EPA-funded National Research Center for nutrient management and the Peace Corps Masterâs International Program in CEE, which allows students to combine their graduate studies with service and research in the Peace Corps as water/sanitation engineers. His teaching and research interests are centered on sustainability, specifically understanding how global stressors influence water resources, water quality, water reuse and resource recovery, and selection and provision of water supply and sanitation infrastructure. Dr. Mihelcic is a board-certified Environmental Engineering Member, a member of the Environmental Protection Agencyâs Chartered Science Advisory Board, past president of the Association of Environmental Engineering and Science Professors, and current Board Trustee with the American Academy of Environmental Engineers & Scientists. He is also the lead author of three textbooks including Environmental Engineering: Fundamentals, Sustainability, Design (John Wiley, 2014) and Field Guide in Environmental Engineering for Development Workers: Water, Sanitation, Indoor Air and Environmental Engineering: Fundamentals, Sustainability, Design (ASCE Press, 2009).
Host: Dr. Amy Childress
Location: Seeley G. Mudd Building (SGM) - 124
Audiences: Everyone Is Invited
Contact: Evangeline Reyes