AMBIENT VIBRATIONAL ANALYSIS OF AURELIANA COLUMN

15 May 2014 | Contributor(s): Paolo Clemente, Giovanni Bongiovanni, Giacomo Buffarini, Fernando Saitta

AMBIENT VIBRATIONAL ANALYSIS OF AURELIANA COLUMNThe results of ambient vibration survey of Aureliana Column in Rome are shown. The objective of this analysis was the characterization of the dynamic behavior of the monument and the comparison with the results obtained with similar studies about 30...

Amplification in the Response of LRB Isolated Structures due to Bidirectional Excitations due to Lead Core Heating

15 May 2014 | Contributor(s): Ugurhan Akyuz, Gokhan Ozdemir

Amplification in the Response of LRB Isolated Structures due to Bidirectional Excitations due to Lead Core HeatingThis study investigates the response of lead rubber bearings (LRBs) under bidirectional earthquake excitations when lead core heating effect is of concern. For this purpose, series of...

An Analytical Approach towards Modeling the Recovery and Reconstruction after the 2011 Tohoku Earthquake and Tsunami

15 May 2014 | Contributor(s): Yoshifumi Yamamoto, Pooya Sarabandi

An Analytical Approach towards Modeling the Recovery and Reconstruction after the 2011 Tohoku Earthquake and TsunamiThe infrastructures as well as large number of buildings along the Pacific coastline of Japan were severely impacted by the 2011 Tohoku Earthquake and Tsunami. The Tsunami resulted...

An efficient approach on dynamic-response analyses for structural systems

15 May 2014 | Contributor(s): Alin Radu, Mircea Grigoriu

An efficient approach on dynamic-response analyses for structural systemsAn efficient methodology is developed for calculating seismic fragilities for complex structural systems, i.e. probabilities that structures subjected to seismic ground motions exceed specified limit states. The methodology...

An Efficient Record Selection Procedure for the Estimation of Median Seismic Demands

15 May 2014 | Contributor(s): Neal Kwong

A PSHA-based Ground Motion Selection Procedure for Estimating the Seismic Demand Hazard CurveThe seismic demand hazard curve (SDHC), λEDP (z), is an important tool for assessing the performance of structural systems at a given site. By combining probabilistic seismic hazard analysis (PSHA) and...

An evaluation of long-period earthquake motions and summary of recorded motions during Tohoku-oki earthquake

15 May 2014 | Contributor(s): Izuru Okawa, Toshihide Kashima, Shin Koyama, Masanori Iiba, Mehmet Celebi, Toshimi Satoh, Takao Nishikawa, Toshikai Sato, Masanobu Tohdo

An evaluation of long-period earthquake motions and summary of recorded motions during Tohoku-oki earthquakeThe construction of the super-high-rise buildings taller than 60 meters started late 1960's in Japan. For design of such tall buildings as well as base-isolated buildings response history...

An Experimental and Analytical Study of the Earthquake Response of R/C Frames with Yielding Columns

30 Jul 1986

The objective of this investigation was to study the response of ´strong beam´-´weak column´ (SBWC) frames to strong ground motions by means of a combined experimental and analytical program. Based on the computed displacement trends of SBWC frames, for the ground motions and frames...

An Experimental Investigation of a Wall-to-Floor Connector for Self-Centering Walls

15 May 2014 | Contributor(s): Jonathan Watkins, Sri Sritharan, Richard Henry

An Experimental Investigation of a Wall-to-Floor Connector for Rocking WallsRocking precast concrete wall systems have shown to be excellent seismic force resisting elements in buildings. The lateral load behaviour of rocking wall systems is characterised by uplift at the wall base, resulting in...

An Experimental Study of Damage Detection using Removable Braces

15 May 2014 | Contributor(s): Graham Archer, Cole McDaniel

An Experimental Study of Damage Detection using Removable BracesIn 1965, a class of undergraduate students launched a project to utilize the rough terrain surrounding their local campus. Their solution was to span a ravine with a bridge-like steel structure similar to that of Mies Van Der Rohe’s...

An Experimental Study of Demands Resulting from In-Air of Debris

30 Jul 2013 | Contributor(s): payam piran aghl, Clay Naito, H. Ronald Riggs

Water-borne debris generated during tsunami events represents a significant threat to structures in coastal zones. In order to ensure performance of the structure during tsunami and flood events, it is important to estimate the impact forces generated by the collision of debris. This paper...

An Experimental Study of the In-Plane Response of Steel-Concrete Composite Walls

29 Jul 2013 | Contributor(s): Siamak Epackachi, Nam H. Nguyen, Efe G Kurt, Andrew Whittaker, Amit H. Varma

Steel-concrete (SC) composite walls are being used for the construction of containment internalstructures and shielding structures in nuclear power plants. SC walls are composed of steel faceplates,connectors and infill concrete, where the connectors are typically constructed from cross-wall tie...

AN EXPLORATORY AND RADICALLY DIFFERENT APPROACH FOR CONTROL OF A TANDEM HOT METAL STRIP ROLLING PROCESS FOR QUALITY PRODUCT IMPROVEMENT

12 Jan 2011 | Contributor(s): Marwan Simaan

An Extended Global Catalogue of Giant (Mw &[ge] 8.8) Earthquakes

15 May 2014 | Contributor(s): Tuna Onur, Robert Muir-Wood

An Extended Global Catalogue of Great (Mw > 8.7) EarthquakesEarthquakes with Mw of greater than 8.7 are distinguished by extensive regional damage from seismic shaking as well as the size of the tsunami generated, typically causing at least 1m of tsunami runup across an ocean in addition to being...

An In Situ Test Method

09 Nov 2010 | Publications | Contributor(s): Allegra East

An in situ test method for evaluating the coupled response between excess pore water pressure generation and nonlinear shear modulus behavior has been developed. This technique is an active, strain-based method that may be used to directly evaluate the liquefaction resistance of soils in place....

An Innovative FRP Anchor System for the Seismic Retrofit of Reinforced Concrete Shear Walls

15 May 2014 | Publications | Contributor(s): Joshua Woods

Innovative FRP Anchor System for the Seismic Retrofit of Reinforced Concrete Shear WallsJoshua E. Woods, Carlos A. Cruz-Noguez & David T. LauDepartment of Civil and Environmental Engineering, Carleton University, OttawaABSTRACT:A number of studies have demonstrated that the use of externally...

AN INNOVATIVE TYPE OF TUNED LIQUID DAMPER

15 May 2014 | Publications | Contributor(s): Diego Lopez-Garcia, Rafael Ruiz, Alexandros Taflanidis

AN INNOVATIVE TYPE OF TUNED LIQUID DAMPERTuned Liquid Dampers (TLD) devices are attractive because of their simple scheme, low cost, and ease of tuning. Their main disadvantages are the very low level of damping, and the loss of linearity (and, consequently, of tuning) when the wave amplitude...

An Integrated Earthquake Impact Assessment System

29 Jul 2011 | Publications | Contributor(s): Sheng-Lin Lin, Amr Elnashai, Billie F. Spencer, Youssef Hashash, Larry Fahnestock

This dissertation presents a methodology for the refined, reliable, integrated and versatile assessment of the impact of earthquakes on civil infrastructure systems by using free-field and structural instrumentation as well as hybrid simulation. The methodology is presented through a...

An intercontinental hybrid simulation experiment for the purposes of seismic assessment of a three-span R/C bridge

15 May 2014 | Publications | Contributor(s): Anastasios Sextos, Stathis Bousias, Olympia Taskari, Oh-Sung Kwon, Amr Elnashai, Luigi Di Sarno, Nikolaos Evangeliou, Xenofontas Palios

An intercontinental hybrid simulation experiment for the purposes of seismic assessment of a three-span R/C bridgeHybrid simulation is a promising tool that permits the integration of different laboratories in real time to undertake a set of joint experiments on individual components assembling a...

An Internet-based Educational Platform for Earthquake Engineering Laboratory Experiments

19 Sep 2011 | Publications | Contributor(s): Shirley Dyke, Jian Ouyang, Chris Lawrence Beeler, Chencheng Wu, Le Yu

Shake table constitutes a versatile tool for educational purposes and small scale research projects in earthquake engineering and structural dynamics. Hands-on activities involving shake tables are effective tools for learning concepts in structural dynamics and earthquake engineering. For nearly...

An Internet-based Educational Platform for Earthquake Engineering Laboratory Experiments (Presentation)

19 Sep 2011 | Historical Documents | Contributor(s): Shirley Dyke, Chencheng Wu, Le Yu, Chris Lawrence Beeler, Jian Ouyang

 Hands-on activities involving shake tables are effective tools for learning concepts in structural dynamics and earthquake engineering. For nearly ten years the University Consortium of Instructional Shake Tables has worked toward improving educational opportunities related...