Novel prefabricate prestressed steel frame girder-column pitch point with post-earthquake self-reset function

Abstract

Novel prefabricate prestressed steel frame girder-column pitch point with a post-earthquake self-reset function comprises steel frame girders and steel frame pillars, wherein the steel frame girders comprise middle girder sections, short girder sections, reinforcing devices, connecting devices and energy consumption devices. The middle girder sections comprise middle girder section webs and middle girder section flanges connected on the periphery of the middle girder section webs; and the connecting mode of the steel frame girders and the steel frame pillars is that short girder section webs are connected with steel pillars through scabs and high-strength bolts. When an earthquake reaches a certain degree, connecting surfaces of the middle girder sections and the connecting vertical plates are separated, and the high-strength bolts rub to consume energy, and thereby avoiding or reducing damage of main construction members such as the steel frame girders and the steel frame pillars. After the earthquake, the structure can return the original vertical position under the prestressed influence, and can restore original functions of the structure.

Description

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AI Technical Summary

Benefits of technology

This innovation allows for better strengthening during an explosion or other event caused by seismic activity without requiring expensive reinforcement materials like metal rods. Instead, it uses specialized steel frames called stretches instead of normal concrete bars. These stretcher columns help absorb shock loads more effectively while also allowing some flexibility when constructing buildings due to their own structure.

Problems solved by technology

The technical problem addressed in this patented paper relating to conventional steeplastage type reinforced concrete frames called autostabilized ones has been related to their ability to prevent stress corrosion crack failures caused by seepages when subjected to severe environmental conditions without causing permanent damaging effects upon the main parts themselves. Previous attempts were made to develop new methods for these types of constructions while maintaining their effectiveness against various forms of shock loading due to external forces. However, current solutions require expensive equipment and long periods before they work properly.

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