Traffic Excited Vibrations Acting on Pedestrians Using a Highway Bridge

2011 ◽  
pp. 1-12
Author(s):  
Reto Cantieni
Keyword(s):  
Highway Bridge

Flight Path Planning of Robot for Environmental Measurement Considering Accuracy Assurance

Impact ◽  
2019 ◽  
Vol 2019 (10) ◽  
pp. 90-92
Author(s):  
Kae Doki ◽  
Yuki Funabora ◽  
Shinji Doki
Keyword(s):  
Large Scale ◽  
Highway Bridge ◽  
Climate Research ◽  
Small Uav ◽  
Inspection Process ◽  
Aerial View ◽  
Aerial Vehicle ◽  
Infrastructure Inspection ◽  
Institute Of Technology ◽  
Small Team

Every day we are seeing an increasing number of robots being employed in our day-to-day lives. They are working in factories, cleaning our houses and may soon be chauffeuring us around in vehicles. The affordability of drones too has come down and now it is conceivable for most anyone to own a sophisticated unmanned aerial vehicle (UAV). While fun to fly, these devices also represent powerful new tools for several industries. Anytime an aerial view is needed for a planning, surveillance or surveying, for example, a UAV can be deployed. Further still, equipping these vehicles with an array of sensors, for climate research or mapping, increases their capability even more. This gives companies, governments or researchers a cheap and safe way to collect vast amounts of data and complete tasks in remote or dangerous areas that were once impossible to reach. One area UAVs are proving to be particularly useful is infrastructure inspection. In countries all over the world large scale infrastructure projects like dams and bridges are ageing and in need of upkeep. Identifying which ones and exactly where they are in need of patching is a huge undertaking. Not only can this work be dangerous, requiring trained inspectors to climb these megaprojects, it is incredibly time consuming and costly. Enter the UAVs. With a fleet of specially equipped UAVs and a small team piloting them and interpreting the data they bring back the speed and safety of this work increases exponentially. The promise of UAVs to overturn the infrastructure inspection process is enticing, but there remain several obstacles to overcome. One is achieving the fine level of control and positioning required to navigate the robots around 3D structures for inspection. One can imagine that piloting a small UAV underneath a huge highway bridge without missing a single small crack is quite difficult, especially when the operators are safely on the ground hundreds of meters away. To do this knowing exactly where the vehicle is in space becomes a critical variable. The job can be made even easier if a flight plan based on set waypoints can be pre-programmed and followed autonomously by the UAV. It is exactly this problem that Dr Kae Doki from the Department of Electrical Engineering at Aichi Institute of Technology, and collaborators are focused on solving.

Dynamic responses of highway bridge subjected to heavy truck impact

2021 ◽  
Vol 232 ◽  
pp. 111828
Author(s):  
Kai Heng ◽  
Ruiwen Li ◽  
Zhuoran Li ◽  
Hao Wu
Keyword(s):  
Dynamic Responses ◽  
Highway Bridge ◽  
Heavy Truck

Seismic Response Prediction of Base Isolated Multi-Span Highway Bridge with Different Modeling Techniques for Lead Rubber Bearings

2012 ◽  
Vol 18 (12) ◽  
pp. 1227-1234
Author(s):  
Muhammad Kashif Razzaq ◽  
Yoshiaki Okui ◽  
Hiroshi Mitamura ◽  
Takashi Imai
Keyword(s):  
Seismic Response ◽  
Response Prediction ◽  
Highway Bridge ◽  
Modeling Techniques ◽  
Lead Rubber Bearings ◽  
Rubber Bearings

Shake Table Studies of Seismic Structural Systems of a Taizhou Changjiang Highway Bridge Model

2015 ◽  
Vol 20 (3) ◽  
pp. 04014065 ◽  
Author(s):  
Jianzhong Li ◽  
Jukao Yan ◽  
Tianbo Peng ◽  
Lei Han
Keyword(s):  
Structural Systems ◽  
Highway Bridge ◽  
Shake Table ◽  
Bridge Model

Performance Assessment of a Highway Bridge Structure employing Adaptive Negative Stiffness for Seismic Protection

2013 ◽  
Author(s):  
N. Attary ◽  
M. Symans ◽  
S. Nagarajaiah ◽  
A. M. Reinhorn ◽  
M. C. Constantinou ◽  
...  
Keyword(s):  
Performance Assessment ◽  
Negative Stiffness ◽  
Seismic Protection ◽  
Highway Bridge ◽  
Bridge Structure
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