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RISEffect of Major Design Parameters on the Seismic Performance of Bridges with Hybrid Sliding–Rocking Columns
Publisher: ASCE
Abstract: This paper explores the effects of major design variables on the seismic performance of the so-called hybrid sliding–rocking (HSR) bridge columns. The HSR bridge columns are precast concrete segmental columns with internal ...
Evaluation of Seismic Performance of Reinforced Concrete Frame Buildings with Retrofitted Columns
Publisher: ASCE
Abstract: In the US, ASCE/SEI 41 serves as the primary standard for the seismic evaluation of existing buildings, as well as for retrofit design. In this study, 3-, 6-, and 9-story nonductile reinforced concrete (RC) frame buildings, ...
Vulnerability of Reinforced-Concrete-Frame Buildings and Their Occupants in the 2009 L’Aquila, Italy, Earthquake
Publisher: American Society of Civil Engineers
Abstract: Reinforced-concrete-frame buildings, particularly midrise multifamily condominium structures, experienced significant damage in the 2009 L’Aquila, Italy earthquake. The most frequently observed damage was cracking and ...
Numerical Simulation of Hybrid Sliding-Rocking Columns Subjected to Earthquake Excitation
Publisher: American Society of Civil Engineers
Abstract: This paper introduces a novel element formulation for the dynamic analysis of bridges incorporating posttensioned segmental columns with hybrid sliding-rocking (HSR) joints distributed over their height. These columns are ...
In-Ground Gravel–Rubber Panel Walls to Mitigate and Base Isolate Shallow-Founded Structures on Liquefiable Ground
Publisher: ASCE
Abstract: The effectiveness of a new liquefaction mitigation strategy is investigated experimentally for newly constructed shallow-founded structures: an in-ground gravel–rubber (GR) panel wall system. The goal was to limit the ...
Seismic Repair Assessment of Hybrid Sliding–Rocking Bridge Columns through Integrated Experimentation and Expert Panel Solicitation
Publisher: ASCE
Abstract: Due to the large number of bridges that will need upgrade, retrofit, or replacement in coming years, there is an increasing need for seismic bridge design techniques that are compatible with accelerated bridge construction ...
Achieving Functional Recovery through Seismic Retrofit of Existing Buildings: Barriers and Opportunities
Publisher: ASCE
Abstract: Earthquakes can cause extensive damage to buildings, with lengthy impacts in terms of community recovery. As a result, there is a growing interest in design approaches and standards for buildings that ensure postearthquake ...
Earthquake Functional Recovery in Modern Reinforced Concrete Buildings
Publisher: American Society of Civil Engineers
Abstract: Functional recovery is a new, nonstandardized building design objective, intended to improve a building’s capacity to maintain or rapidly restore basic intended functions after a natural hazard event. Current building ...
Reduce, Reuse, Resilient? Life-Cycle Seismic and Environmental Performance of Buildings with Alternative Concretes
Publisher: ASCE
Abstract: This paper investigates the impacts of alternative structural concretes on the life-cycle sustainability and resilience of a reinforced concrete building in a high seismic region. To do so, we conduct a life-cycle environmental ...
Seismic Collapse Safety of Reinforced Concrete Buildings. II: Comparative Assessment of Nonductile and Ductile Moment Frames
Publisher: American Society of Civil Engineers
Abstract: This study is the second of two companion papers to examine the seismic collapse safety of reinforced concrete frame buildings, and examines nonductile moment frames that are representative of those built before the mid-1970s ...