Synthesis of the UTexas1 Surface Wave Dataset Blind-Analysis Study

29 Jul 2014 | Contributor(s): Brady Cox, Clinton Miller Wood, David P Teague

This paper documents inter-analyst uncertainty/variability in dispersion and shear wave velocity (Vs) estimates from a blind-analysis study performed on a common experimental dataset of surface wave measurements. The dataset consists of both active-source and ambient-wavefield data collected...

Comprehensive Analysis of the UTexas1 Surface Wave Dataset Analyst I

29 Jul 2014 | Contributor(s): Clinton Miller Wood, Trent Ellis, David P Teague, Brady Cox

This paper details the methodologies, uncertainties, and results from analysis of the UTexas1 Dataset. The vertical and horizontal seismic records from multiple field acquisitions of active-source and ambient-wavefield surface wave data were processed to obtain dispersion estimates using the...

SEISMIC ISOLATION TECHNOLOGY IN THE UNITED STATES: EXAMINING THE POTENTIAL IMPACT OF EARTHQUAKE INSURANCE DISCOUNTS ON THE RATE OF SEISMIC ISOLATION ADOPTION

29 Jul 2014 | Contributor(s): Lucy Arendt

Unpublished paper. Seismic isolation and insurance.

COMPARATIVE SEISMIC RESPONSE OF CODE DESIGNED CONVENTIONAL AND BASE-ISOLATED BUILDINGS TO SCENARIO EVENTS

29 Jul 2014 | Contributor(s): K.L. Ryan, E. Erduran, P.J. Sayani, N.D. Dhao

In this study, the seismic response of code-designed conventional and base-isolated steel moment frame and braced frame buildings is evaluated. Three dimensional models for both buildings are created and seismic response is assessed for three scenario earthquakes. The response history analysis...

Seismic Protection of Highway Bridges with Negative Stiffness Devices

29 Jul 2014 | Contributor(s): Navid Attary, Michael Symans, Satish Nagarajaiah, Andrei M Reinhorn, Michael Constantinou, Apostolos Aristotelis Sarlis, Dharma Theja Reddy Pasala, Douglas Taylor

A new control device has been developed and implemented for seismic response control ofhighway bridges. The device produces negative stiffness in a completely passive manner via amechanical mechanism. Numerical simulations and experimental shaking table tests havedemonstrated the effectiveness of...

Centrifuge Modeling of Bridge System with Rocking Footings

29 Jul 2014 | Contributor(s): Lijun Deng, Bruce Lloyd Kutter, Sashi Kunnath, Thomas Algie

This paper presents centrifuge tests to verify the valisity of a new design method that allows the rocking of spread footings during an earthquake to protect the columns from excessive demand.

Post - Eocene Deformation Observed in Seismic - Reflection Profiles Across the Southwestern Blytheville Ar ch and Crowley’s Ridge, Arkansas

29 Jul 2014 | Contributor(s): Robert Williams, William J. Stephenson, Thomas L. Pratt, J.K. Odum

Seismic reflection data description, analysis, and preliminary interpretation.

Hybrid On-Line Experiments and Monitoring of Structural Systems

29 Jul 2014 | Contributor(s): Khalid Mosalam

Final Report of Project CMS 0116005 Hybrid On-Line Experiments and Monitoring of Structural Systems

Results of Early Collaborative Research on Behavior of Braced Steel Frames With Innovative Bracing Schemes (Zipper Frames)

29 Jul 2014 | Contributor(s): Roberto Leon, Chuang-Sheng Yang, Reginald DesRoches, Andrei M Reinhorn, Macarena Schachter, Bozidar Stojadinovic, T.Y. Yang, Benson Shing, Zhong Wei

The new Network for Earthquake Engineering Simulation (NEES), which was inaugurated in late 2004 in the USA, intends to transform the way earthquake engineering research is conducted. In this paper, the initial collaborative experiences with an early NEES project will be described and some early...

Hybrid Simulation Evaluation of Innovative Steel Braced Framing System

29 Jul 2014 | Contributor(s): T.Y. Yang, Bozidar Stojadinovic, Jack Moehle

onventional concentrically braced steel frames are not capable of redistributing large unbalanced vertical forces caused by brace buckling through the system. This creates many design challenges to engineers. In order to retain the advantages of providing efficient stiffness and strength to limit...

NEESR Final Report: Ultra-low Forced Vibration Testing

29 Jul 2014 | Contributor(s): Cole C McDaniel, Graham Charles Archer

NEESR Final Report.A new concept in Forced Vibration Testing (FVT) for low-rise building structures using ultra-low force amplitudes was developed and implemented.

Seismic Testing of Critical Lifelines Rehabilitated with Cured in Place Pipeline Lining Technology

29 Jul 2014 | Contributor(s): Zilan Zong, Dimitra Bouziou, Brad Parker Wham, Andre Filiatrault, Amjad J Aref, Harry Stewart

Trenchless technology is well accepted for repairing critical underground lifelines with minimal ground surface disruption. The cured in place pipeline (CIPP) lining process is an application of trenchless technology that involves the installation of fiber reinforced composites inside existing...

Post-Earthquake Evaluation of Pipelines Rehabilitated with Cured in Place Lining Technology using Acoustic Emission

29 Jul 2014 | Contributor(s): Alireza Farhidzadeh, Ehsan Dehghan-Niri, Zilan Zong, Salvatore Salamone, Amjad J Aref, Andre Filiatrault

To increase the operational lifetime of existing underground pipelines without laborious and costly excavation, replacement, and embankment, in-situ pipeline lining technology has received significant interest over the past three decades. This paper presents the results of an experimental study...

PERFORMANCE EVALUATION OF WATER PIPELINES RETROFITTED WITH CURED IN PLACE PIPE LINER TECHNOLOGY UNDER TRANSIENT EARTHQUAKE MOTIONS

29 Jul 2014 | Contributor(s): Z. Zong, Dimitra Bouziou, Brad Parker Wham, Andre Filiatrault, Amjad J Aref, Harry Stewart

In past earthquake events, the seismic vulnerability of underground pipelines caused significant life and economic losses. Seismic retrofit of critical underground pipelines has become an urgent need of our society to improve the performance and serviceability of these critical lifeline systems...

Large Soil Confinement Box for Seismic Performance Testing of Geo-Structures

29 Jul 2014 | Contributor(s): Patrick J. Fox, Andrew Sander, Ahmed Elgamal, Paul Greco, Dan Isaacs, Matthew Stone, Simon Wong

A large soil confinement box (LSCB) has been designed and constructed for seismic performance testing of large-scale geo-structures on the large high performance outdoor shake table (LHPOST) at the University of California-San Diego. The LSCB is a rigid rectangular box with an open roof that...

Effects of Web Reinforcement Discontinuities on the Seismic Response of Structural Walls

29 Jul 2014 | Contributor(s): Ying Wang

Final Report

Real - Time Hybrid Simulation of a Multi - Story Wood Shear Wall with F irst - S tory Experimental Substructure Incorporating a Rate - Dependent Seismic Energy Dissipation Device

29 Jul 2014 | Contributor(s): Xiaoyun Shao, John Willem van de Lindt, Pouria Bahmani, WeiChiang Pang, ershad ziaei, Michael Symans, jingjing tian

Real-time hybrid simulation (RTHS) of a stacked wood shear wall retrofitted with a rate-dependentseismic energy dissipation device (viscous damper) was conducted at the newly constructed Structural Engineering Laboratory at the University of Alabama. This paper describes the implementation...

Seismic Response of Structural Walls with Geometric and Reinforcement Discontinuities

29 Jul 2014 | Contributor(s): Enrique Villalobos

Villalobos Fernandez, Enrique J., Ph.D., Purdue University, August 2014. Seismic Response of Structural Walls with Reinforcement and Geometric Discontinuities. Major Professor: Santiago Pujol.Discontinuities in the geometry and the reinforcement of structural walls create stress concentrations...

Seismic Response of Reinforced Concrete Walls with Lap Splices

29 Jul 2014 | Contributor(s): Enrique Villalobos, Santiago Pujol

Proceeding of the 10NCEE.

tmp33

29 Jul 2014 | Contributor(s): Lily Dong

test uploading