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RISMiami Pedestrian Bridge Collapse: Computational Forensic Analysis
Publisher: ASCE
Abstract: On March 15, 2018, a pedestrian concrete truss bridge in Miami, Florida, collapsed during construction. The failure of this bridge caused multiple casualties and raised many serious concerns regarding the design and ...
Performance-Based Framework for Evaluating Truck Collision Risk for Bridge Piers
Publisher: ASCE
Abstract: A risk-based method implemented within a performance-based design framework is proposed for protecting bridge piers subject to truck impact. Monte Carlo simulations are performed to calculate the probability of damage ...
Evaluation of the Consistency of Bridge Inspection Ratings in New York State
Publisher: ASCE
Abstract: Previous studies by the Federal Highway Administration (FHWA) have shown significant variability in the rating of bridge elements through visual inspection. In this study, a detailed evaluation of the consistency of ...
Performance-Based Design Framework for Concrete Barriers Subjected to Truck Collision
Publisher: ASCE
Abstract: A validated computational model is used to investigate the response of concrete barriers subjected to impact by single-unit trucks and tractor-semitrailers with different weights and approach speeds. The computational ...
Evaluating the Performance of Protection Beams Subject to Overheight Vehicular Impacts Using Analytical and Machine Learning–Based Methods
Publisher: ASCE
Abstract: Overheight truck collision with a bridge superstructure can cause extensive structural damage and result in severe traffic congestion. Placing protection beams in front of the fascia girder is one of the common countermeasures ...
Numerical Studies on Concrete Barriers Subject to MASH Truck Impact
Publisher: ASCE
Abstract: In January 2016, the FHWA and AASHTO announced a joint agreement that only bridge railing and longitudinal barriers evaluated using the 2016 edition of Manual for Assessing Safety Hardware (MASH) will be allowed for new ...
Performance-Based Design Framework for Bridge Piers Subjected to Truck Collision
Publisher: American Society of Civil Engineers
Abstract: A performance-based design (PBD) framework, suited for incorporation into design codes, is proposed for bridge piers subject to truck impact. Pier performance was judged as a function of shear distortion and plastic rotation ...
Behavior and Design of Bridge Piers Subjected to Heavy Truck Collision
Publisher: American Society of Civil Engineers
Abstract: Heavy trucks, such as tractor–semitrailers weighing up to 360 kN, represent a serious collision hazard for unprotected bridge piers. Current specifications recommend designing a bridge pier vulnerable to vehicular impacts ...
Loading Definition and Design of Bridge Piers Impacted by Medium-Weight Trucks
Publisher: American Society of Civil Engineers
Abstract: Computational simulation was used to investigate the collision process between medium-weight, single-unit trucks and reinforced concrete bridge piers. The simulation results were used to formulate and calibrate a pulse ...
Heavy Truck Collision with Bridge Piers: Computational Simulation Study
Publisher: American Society of Civil Engineers
Abstract: The vast majority of research studies on vehicular collision with bridge piers have been carried out with single-unit trucks, which are typically classified as medium-duty vehicles weighing about 90 kN (20,000 lb). Yet, ...