Search
CSV
RISGPS Measurement of Wind-Induced Suspension Bridge Girder Displacements
Publisher: American Society of Civil Engineers
Abstract: A new method using the Global Positioning System (GPS) was proposed to directly measure the suspension bridge girder displacements induced by wind forces. The field measurements were carried out using this system on an ...
Bending Behavior of Composite Girders with Cold Formed Steel U Section
Publisher: American Society of Civil Engineers
Abstract: A new type of steel and concrete composite bridge with steel U-shape girders has been proposed. The U girder can be cold formed from one steel sheet, and the amount of welding required is substantially small and mass ...
Model for Lateral Excitation of Footbridges by Synchronous Walking
Publisher: American Society of Civil Engineers
Abstract: It was observed on a pedestrian cable-stayed bridge that the girder vibrated laterally with a frequency of about 0.9 Hz, the natural frequency of the first lateral mode, when a large number of people crossed the bridge. ...
Experimental Study on Repair Methods of Corroded Bridge Cables
Publisher: American Society of Civil Engineers
Abstract: The cables and hangers of old suspension bridges and the stays of cable-stayed bridges often suffer from steel corrosion. It is important to repair them by proper methods to prevent the further progression of corrosion. ...
Experimental Study on Fatigue Strength of Corroded Bridge Wires
Publisher: American Society of Civil Engineers
Abstract: Fatigue tests were conducted for corroded galvanized steel wires on three corrosion levels, showing that fatigue strength of corroded wires lowers as corrosion progresses. Corrosion pits were measured on the corroded ...
Closure to “Model for Lateral Excitation of Footbridges by Synchronous Walking” by Shun-ichi Nakamura
Publisher: American Society of Civil Engineers
Environmental Factors Affecting Corrosion of Galvanized Steel Wires
Publisher: American Society of Civil Engineers
Abstract: It was found from field surveys that suspension bridge cables were under severe corrosion environments due to the water and high temperature inside the cable. Corrosion environments depended on the wire positions inside ...
Optimal Dynamic Quantizers for Feedback Control With Discrete-Level Actuators: Unified Solution and Experimental Evaluation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposes to use optimal dynamic quantizers for feedback control in mechatronics systems when the actuator signals are constrained to discrete-valued signals. Here, the dynamic quantizer ...
Multiple Fracture Propagation Model for a Three-Dimensional Hydraulic Fracturing Simulator
Publisher: American Society of Civil Engineers
Abstract: Multiple nonplanar hydraulically induced fractures are often observed or assumed to exist in well stimulation sites of petroleum and geothermal reservoirs. Although such multiple and nonplanar features of the fractures ...
Bending Behavior of Steel Pipe Girders Filled with Ultralight Mortar
Publisher: American Society of Civil Engineers
Abstract: Bending behavior of steel pipes filled with ultralight mortar was studied by bending tests using a steel pipe, steel pipes filled with ultralight mortar, and steel pipes filled with light aggregate concrete and normal ...