This study as a whole makes an effort to analysis and design becomes more complicated. Plan Irregularities 2. Vertical Irregularities. Keywords-Seismic performance, Plan, vertical, mass, stiffness, weak storey irregularities, IS , Vertical Irregularities are mainly of five types IS When the seismic waves reach less than 60 percent of that in the storey above or less the foundation level of the structure, it experiences than 70 percent of the average stiffness of the three horizontal and vertical motion at ground surface level.
Due to this, earthquake is responsible for the damage to various man-made structures like buildings, bridges, ii Mass Irregularity-Mass irregularity shall be roads, dams, etc. It also causes landslides, liquefaction, considered to exist where the seismic weight of any slope-instability and overall loss of life and property.
In case of roofs irregularity need not be at points of weakness. This weakness arises due to considered. The structures having this discontinuity are considered to be Vertical geometric irregular when the termed as Irregular structures.
Irregular structures horizontal dimension of the lateral force resisting system contribute a large portion of urban infrastructure. Only flag comments that clearly need our attention. As a general rule we do not censor any content on the site. The only content we will consider removing is spam, slanderous attacks on other members, or extremely offensive content eg. Images Donate icon An illustration of a heart shape Donate Ellipses icon An illustration of text ellipses.
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