Pushover analysis is a technique in which a structure is subjected to incremental loads controlling either forces or displacements. The formation of the hinges allows plastic deformation, which in turn reduces the peak elastic seismic design force needed to be resisted by the bridge.Īlthough plastic hinge formation causes irreversible deformations, they are only allowed for strong seismic events with a low probability of exceedance. It is permitted in various design codes, including those using the traditional Force-Based method of design. Plastic hinges are commonly considered energy-damping devices that allow increased displacement of the bridge via plastic rotation. Allowable Earthquake-Resisting System (ERS) employing a Ductile Substructure with an Elastic Superstructure (AASHTO Guide Specification for LRFD Seismic Bridge Design) The economic savings and design protection to other elements due to plastic hinges highly outweigh the cons of dealing with repairable damages.ĭuring the 'Learn the basics of Pushover Analysis using MIDAS Civil' session, the speaker shows how to set up the model, define hinges, pushover procedures, and interpret results.įigure 3. Plastic hinges are primarily energy dispersing elements that occur in the event of a strong earthquake. This method provides a better approximation of the bridge's behavior than available elastic analysis methods.Ģ. Pushover analysis is a nonlinear static analysis method that accounts for the redistribution of actions as the bridge behaves inelastically. Why is Pushover Analysis needed in the analysis of bridges? It also introduces Pushover Analysis (PA), which is continuously gaining popularity over the last few years.ġ. The webinar highlights the importance of plastic hinges in bridge seismic design. Thus, it is common in Seismic Design Methodologies to permit ductile yielding of elements to reduce the overall forces resisted by the bridge. Examples in various programming languages can be found in this article.In the design of bridges, it is often unreasonable and impractical to design elements to resist strong seismic movements elastically. If you're a developer or even just have some scripting knowledge, you can integrate Pushover notifications into your application, website, server process, network monitor, or anything else using our API. On the device side, our iOS, Android, and Desktop clients receive those push notifications, show them to the user, and store them for offline viewing. On the server side, we provide an HTTP API for queueing messages to deliver to devices addressable by User or Group Keys. In more detail, Pushover is a platform for sending and receiving push notifications. (Optional) Use your new Pushover e-mail address (found on your dashboard) in any application or website that does not support Pushover, and any e-mails sent to that address will get delivered to you as Pushover notifications.That can be done here, or by following the link in the application to easily clone it. (Optional) Some applications require you register for your own API token and paste it into the application.Copy and paste your User Key into any application that supports Pushover and it will instantly be able to start sending notifications to your devices.Your User Key is a randomly generated identifier which allows other apps to send Pushover notifications to your devices. You'll get a new User Key e-mailed to you (which you can always find on your dashboard or through the Settings menu of the Pushover client app on your device).Launch the client and it will walk you through creating a Pushover account and registering your device with our servers.Install our client app on your iPhone/iPad or Android device, or register your Desktop browser. In short, Pushover is a service to receive instant push notifications on your phone or tablet from a variety of sources.
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