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September 01, 2007
A technique for measuring the evolution of shear strength of liquefiable soils in physical models as earthquake-induced pore pressures change is desirable. It was envisioned that the shear strength of liquefying sands can be measured in-flight in a seismic...
October 01, 2003
These experiments are part of a collaborative research project to study soil-foundation-structure interaction. A continuous reinforced concrete bridge supported on drilled shaft foundations was selected as the prototype structure for investigation. Two...
February 01, 2010
Natural disasters, in particular earthquakes, can cause damage to pipelines which transport life- and society-sustaining supplies, such as water or hydrocarbons. Earthquake damage to pipelines can have disastrous humanitarian, social, economic, and ecologic...
November 02, 2009
This project is a task within a larger project funded by Federal Highway Administration (FHWA) under a contract to the University of Nevada to study the seismic resilience of highway systems. It is the objective of this Project to conduct a comprehensive...
October 01, 2009
This project's long-term goal is to transform assessment and mitigation of the landslide tsunami hazard through hybrid modeling of landslide tsunami evolution in real world scenarios, where the generation, propagation, and runup stages overlap. Rare...
March 15, 2009
The goal of this NEESR-SD project is to develop, examine, implement, and demonstrate robust and accurate synchronization control tools that provide the capability to conduct real-time, multi-site experiment and simulation tests within the NEES framework...
January 13, 2010
Real-time hybrid simulation is an efficient test method for investigating the dynamic behavior of complex structures. It combines physical testing and numerical simulation to enable the entire structural system to be included in the simulation. Hybrid...
November 11, 2010
The research objective of this Faculty Early Career Development (CAREER) Program project is to enhance the hybrid simulation methodology to evaluate the performance of large scale structures loaded up to collapse. Hybrid simulation, which combines numerical...
The project will experimentally and numerically investigate the properties of resedimented soil following liquefaction, including void ratio distribution and shear strength. To investigate the properties of cohesionless soil subsequent to liquefaction...
November 09, 2010
Topographic effects refer to the modification and amplification of seismic ground motion in the vicinity of topographic features such as hillsides, ridges, and canyons. This well-documented phenomenon has yet to be addressed in design codes. Because...
July 17, 2006
The major interest of the test was the relationship between the total horizontal force applied to the wall and the corresponding horizontal displacement. A pretest (Experiment 5) was performed pushing the wall up to 1.0 inch without the backfill soil...
April 24, 2009
September 01, 2009
Structural systems that consist of slabs directly supported by columns or flat plate frame systems are widely used in concrete construction because of their architectural appearance, functionality, and economy. In regions of high seismic hazard, they...
January 01, 2010
The proposed seismic enhancement technique involves heat treating sections of beam flanges by exposing these sections to a very high temperature for certain amount of time before slow cooling. Such a heat treatment process reduces the strength of steel...
Steel moment frames are widely used for seismic-resistant building construction throughout the United States and in many other parts of the world. Although steel moment frames were studied extensively following the 1994 Northridge, California, earthquake...
March 29, 2010
Metal Building Systems make up a large portion of new low-rise, non-residential construction today. These systems are designed to be extremely efficient and as such exhibit very different behavior than other steel building systems. The current building...
This investigation will obtain, interpret and disseminate the first shake table results for full-scale bridge columns detailed consistent with current U.S. design practices. This project was going to be carried out at E-Defense, making use of the large...
This study examines the influence of beam size on the shear capacity of geometrically scaled reinforced concrete beams without web reinforcement. The experimental program included six 12-in. deep beams and two 30-in. deep beams. All components of the...
October 01, 2010
Earth retaining structures constitute an important component of civil engineering infrastructure. In earthquake prone areas an earth retaining structure must be designed to withstand the seismic earth pressures in addition to the static ones. The design...
April 04, 2011
A 17.4 m long, 11-bay, three-dimensional highway sign support truss structure was tested at the Robert L. and Terry L. Bowen Laboratory for Large-Scale Cvil Engineering Research of the Purdue University. The truss is 17.04m long, 1.83m wide and 1.98m...
February 04, 2011
The vision for this research is a validated probabilistic, performance-based seismic design procedure for buildings with passive damping systems. In this procedure, the design of the damping system is integrated with the design of the associated seismic...
May 01, 1979
The objective of the experimental study was to develop a better understanding of the response of frame-wall structures to strong earthquake motions. Each small-scale structure consisted of two three-bay frames and one wall resisting lateral loads in...