SCI: Wind Moment Design of Low Rise Frames

[gboyega]

Wind Moment Design of Low Rise Frames

This publication presents procedures for the design of wind-moment frames in accordance with BS 5950-1. In this method of design, the frame is made statically determinate by treating the connections as pinned under vertical loads and fixed under horizontal loads (with certain assumed points of zero moment). The publication gives design procedures for frames that are braced in the minor axis direction and for frames that do not have bracing in either principal direction.
The limitations of the method, which differ slightly for these two cases, are explained. In particular, it should be noted that the method is only recommended for low-rise frames up to four storeys high.
In addition to design procedures for the ultimate and serviceability limit states, fully worked design examples are presented for two cases. The publication also reproduces the resistance tables for standard wind-moment connections taken from SCI/BCSA publication P207 Joints in steel construction: Moment connections.
These connections use flush or extended end plates and grade 8.8 M20 or M24 bolts, and achieve sufficient rotation capacity by ensuring that the moment resistance is not governed by bolt or weld failure.

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[eng donny]

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[ssobhan]

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