LARGE-SCALE ABUTMENT BACKWALL WITH GRANULAR BACKFILL SOIL FAILURE INVESTIGATION

12 Jul 2011 | Poster | Contributor(s): NEES EOT

Experimental investigation of passive earth pressure in bridge abutments is crucial for seismic design. The objectives of this project were to determine the initial stiffness and ultimate passive …

http://nees.org/resources/3089

TSUNAMI GENERATION BY LANDSLIDE Integrating Laboratory Scale Experiments, Numerical Models and Natural Scale Applications

12 Jul 2011 | Poster | Contributor(s): NEES EOT

While tsunamis are commonly associated with submarine earthquakes, these tsunamis are limited in height to seafloor displacement. Landslide generated tsunamis are not subject to such limitations and …

http://nees.org/resources/3090

ANALYSIS OF AMBIENT VIBRATION DATA COLLECTED FROM TWO BUILDINGS

12 Jul 2011 | Poster | Contributor(s): Caitlin Collins, NEES EOT

In the summer of 2010, NEES@UCLA, Center for Embedded Network Sensing (CENS), and High School Summer Research Program (HSSRP) interns conducted ambient vibration testing on the Engineering 1 building …

http://nees.org/resources/3091

LARGE SCALE TESTING OF BRIDGE ABUTMENT BACKFILL SOIL 2010

12 Jul 2011 | Poster | Contributor(s): NEES EOT

Bridge abutments typically contain a backwall that is designed in such a way that it will break free of the base when struck by the bridge deck during an earthquake. The backwall will be pushed …

http://nees.org/resources/3092

Contributions to the Investigation of the Response of a Highly Curved Bridge

12 Jul 2011 | Poster | Contributor(s): Pablo D Ramos, NEES EOT

The current code book published by the American Association of State Highways and Transportation Officials (AASHTO) is the only reference for the design of bridges and it is limited to the design of …

http://nees.org/resources/3093

CENTER FOR ADVANCED TECHNOLOGY FOR LARGE STRUCTURAL SYSTEMS (ATLSS) Grid-Based Real-Time Hybrid Simulation for Large Structural Systems

12 Jul 2011 | Poster | Contributor(s): NEES EOT

Real-time hybrid simulation is an innovative method of testing structural systems subjected to earthquake loading. In a hybrid simulation, the complete structural system is included by modeling some …

http://nees.org/resources/3095

Contributions to the Simulation of the Seismic Performance of Nonstructural Systems

12 Jul 2011 | Poster | Contributor(s): NEES EOT

Years of research in the field of earthquake engineering has led to a deep understanding of the response of structures to seismic activity, however little carryover has been seen in nonstructural …

http://nees.org/resources/3098

SEISMIC PERFORMANCE OF CONCRETE SPECIAL BOUNDARY ELEMENT

12 Jul 2011 | Poster | Contributor(s): NEES EOT

In February of 2010, a magnitude 8.8 earthquake struck south central Chile. Concrete construction dominates the building industry in Chile even for multi-story to high rise structures. Of these …

http://nees.org/resources/3100

3D Modeling Of Krypton Data In Realtime

12 Jul 2011 | Poster | Contributor(s): NEES EOT

By incorporating the visualization of 3‐D data in the Real‐Time Data Viewer (RDV), researchers are presented with a whole new world of visual data to explore. At the MAST Research Lab at the …

http://nees.org/resources/3101

ASSESSMENT OF PUNCHING SHEAR VULNERABILITY

12 Jul 2011 | Poster | Contributor(s): NEES EOT

Reinforced concrete slab-column connections are susceptible to punching shear failure. To mitigate this failure, engineers have use shear stud reinforcement (SSR) for the past decade, but based on a …

http://nees.org/resources/3103

Crack Mapping for the Analysis of Complex Shear Wall Systems

12 Jul 2011 | Poster | Contributor(s): NEES EOT

This project explores the creation of crack maps as a tool to analyze the damage mechanisms and characteristics of reinforced concrete shear walls. The objective is to use crack maps as an aid in …

http://nees.org/resources/3105

Lateral Load Behavior and Modeling of Low-Rise RC Walls for Performance-Based Design

12 Jul 2011 | Poster | Contributor(s): Kyle Weiland, NEES EOT

Shear walls are one of the main defenses a structure has against an earthquake. The purpose of having shear walls is that they support the structure against lateral loads such as those from wind or …

http://nees.org/resources/3107

LOWERING THE INITIAL AND LIFETIME COSTS OF ISOLATION IN BUILDINGS

12 Jul 2011 | Poster | Contributor(s): NEES EOT

This research work was overseen and partially supported by the Pacific Earthquake Engineering Research (PEER) Center as a part of the 2010 PEER Internship Program. Financial support for the author …

http://nees.org/resources/3109

LOCALIZED DAMAGE DETECTION IN FULL-SCALE BEAM-COLUMNS USING STRAIN GAUGES

12 Jul 2011 | Poster | Contributor(s): NEES EOT

Structural health monitoring (SHM) is quickly becoming a highly demanded field within structural engineering. For this reason, previous work was done on a small-scale, idealized structure which …

http://nees.org/resources/3112

Parametric Study of Ductile Cross Frames in Horizontally Curved Steel Girder Bridges

12 Jul 2011 | Poster | Contributor(s): NEES EOT

Ductile cross frames have been shown in the past to be an effective seismic design strategy for straight steel plate girder bridges. In ductile superstructures, the support cross-frames are specially …

http://nees.org/resources/3115

Simulation of the Seismic Performance of Nonstructural Systems

12 Jul 2011 | Poster | Contributor(s): Alicia Echevarria, NEES EOT

In this work a more refined procedure for the design of nonstructural components in steel moment frame buildings was proposed. The current design process for nonstructural components consists of an …

http://nees.org/resources/3118

SMALL-SCALE PROOF TESTING FOR THREE PIER HYBRID SIMULATION

12 Jul 2011 | Poster | Contributor(s): Jeremy Hasselbauer, NEES EOT

The Three Pier Hybrid Simulation will incorporate small and large-scale testing to further the understanding of reinforced concrete behavior under combined loading. Before this test is performed, it …

http://nees.org/resources/3120

PRELIMINARY STUDY OF THE STRONGBACK SYSTEM: PREVENTING THE SOFT STORY MECHANISM

12 Jul 2011 | Poster | Contributor(s): NEES EOT

With advances in braced frame technology, new systems with increasingly better earthquake resistance are coming into existence. This project consists of a series of preliminary analyses on an …

http://nees.org/resources/3124

SEISMIC PERFORMANCE AND REPAIR OF PRECAST/PRESTRESSED CONCRETE PILE-TO-WHARF CONNECTIONS

12 Jul 2011 | Poster | Contributor(s): Sunit Mody, NEES EOT

Adequate performance of port structures during and after earthquakes is essential for economic reasons and, as seen recently, for receiving recovery aid after such natural disasters. A “grand …

http://nees.org/resources/3125

Parametric Study of Glass Fiber Reinforced Polymer Concrete Filled Bridge Columns under Lateral Loads

12 Jul 2011 | Poster | Contributor(s): NEES EOT

Conventional reinforced concrete columns are commonly seen in buildings, highways, and bridges. However, due to excessive concrete damage and steel fracture associated with bar buckling the …

http://nees.org/resources/3126