Plastic Bending of Portals Next Generation Structures Manufacturer,Supplier and Exporter in India
Product Code : EL-NGSP-11386
Students fit the specimen portal frame to fixing blocks that simulate fixed foundations, and apply loads.
Students apply either vertical, horizontal or combined loads to the portal, forcing it to bend through the elastic region and into the plastic region where it deforms permanently, experiencing plastic collapse and the formation of plastic hinges.
Load cells measure the applied forces and precision indicators measure the portal deformation.
Each load cell applies and measures the load through cables at 90 degrees to the portal.
This preserves the load direction as the portal deforms.
This allows students to appreciate the ratio between yield moment and the fully plastic moment (shape or form factor), showing how this ratio provides an additional safety factor.
It explains how a building may fail, but still withstand loads to allow people to safely leave before complete collapse.
It also shows the interaction between the vertical and horizontal loads and the production of an interaction diagram to predict the failure mode.
Students use textbook equations to predict the results, comparing them to measured results.
This helps confirm the reliability of the textbook equations and the accuracy of the experiment results.
