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...

nees.org/warehouse/project/963

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...

nees.org/warehouse/project/964

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...

nees.org/warehouse/project/966

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...

nees.org/warehouse/project/967

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...

nees.org/warehouse/project/968

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...

nees.org/warehouse/project/972

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...

nees.org/warehouse/project/973

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...

nees.org/warehouse/project/974

October 01, 2009

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...

nees.org/warehouse/project/975

November 09, 2010

nees.org/warehouse/project/976

October 01, 2009

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...

nees.org/warehouse/project/977

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...

nees.org/warehouse/project/980

April 24, 2009

nees.org/warehouse/project/981

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...

nees.org/warehouse/project/983

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...

nees.org/warehouse/project/984

September 01, 2009

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...

nees.org/warehouse/project/985

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...

nees.org/warehouse/project/986

September 01, 2007

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...

nees.org/warehouse/project/987

January 01, 2010

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...

nees.org/warehouse/project/994

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...

nees.org/warehouse/project/1004

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...

nees.org/warehouse/project/1013

February 04, 2011

nees.org/warehouse/project/1015

February 04, 2011

nees.org/warehouse/project/1017

October 01, 2009

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...

nees.org/warehouse/project/1018

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...

nees.org/warehouse/project/1019