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Failure Mechanism of Expansion Joints in a Suspension Bridge
Publisher: American Society of Civil Engineers
Abstract: Premature failure of expansion joints is a concern for bridge owners. After opening to traffic, the Jiangyin suspension bridge experienced frequent damage in expansion joints, and the problem remained unsolved even after ...
Tuned Mass Dampers for Wind-Induced Vibration Control of Chongqi Bridge
Publisher: ASCE
Abstract: Chongqi Bridge is part of an important route over the Yangtze River connecting Chongming City in Shanghai with Qidong City in Jiangsu. The steel box-girder bridge consists of separate but adjacent twin six-span bridges, ...
Vision and Support Vector Machine–Based Train Classification Using Weigh-in-Motion Data
Publisher: ASCE
Abstract: Trains with a different number of carriages can induce stress responses with varying amplitudes in the long-span steel bridges, which consequently cause different levels of fatigue damage. To better evaluate the fatigue ...
Singular Value Decomposition–Based Collocation Spectral Method for Quasi-Two-Dimensional Laminar Water Hammer Problems
Publisher: American Society of Civil Engineers
Abstract: The radial distributions of velocity components need to be resolved in quasi-two-dimensional laminar water hammer problems. In a collocation spectra method, the radial distributions are approximated with Chebyshev expansions ...
Failure Investigation and Replacement Implementation of Short Suspenders in a Suspension Bridge
Publisher: American Society of Civil Engineers
Abstract: Among components of a suspension bridge, suspenders transmit wind or live loads on the deck to the main cable, which are then transmitted to the pylons, and finally to the earth. Suspenders are vulnerable to corrosion ...
Improved GNSS/Acoustic Underwater Positioning with Between-Buoy Baseline Constraint
Publisher: ASCE
Abstract: Continuous seafloor transponder positioning with moored buoy observation system is an indispensable method for detecting seafloor crustal deformation. However, the between-buoy baseline information provided by the global ...
Experimental Investigation on Wear Resistance of Bushing in Bridge Suspenders
Publisher: ASCE
Abstract: A pin connection is often used to join the hangers with the main cable and main girder in a suspension bridge. As the bridge moves under live or wind loads, the pin-connection components are subject to repetitive loading. ...
Effectiveness Assessment of TMDs in Bridges under Strong Winds Incorporating Machine-Learning Techniques
Publisher: ASCE
Abstract: Tuned mass dampers (TMDs) are widely used to control excessive wind-induced vibration in the box girders of long-span bridges. Although the optimal design of TMDs has been investigated abundantly in the last few years, the ...