Shakedown Analysis the Design of a 275kV Switchhouse

Author: Heyman, J;Johnson, R P;Fowler, P P;Gillson, I P

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Shakedown Analysis the Design of a 275kV Switchhouse

The Structural Engineer
Shakedown Analysis the Design of a 275kV Switchhouse
Date published

N/A

First published

N/A

Author

Heyman, J;Johnson, R P;Fowler, P P;Gillson, I P

Price

Standard: £9 + VAT
Members/Subscribers: Free

Buy Now

A steel-framed switchhouse, designed for the Central Electricity Generating Board, proved unusually sensitive to wind loading. Calculations show that repeated wind loading, together with random application of live loading, will lead to incremental collapse at a of incremental collapse and alternating plasticity relatively low load factor. The phenomena single and two-storey frames, and the results are first discussed with reference to simple of model experiments are presented. Sample detail calculations are then given for the switchhouse, showing how a practical plastic design may be made for (a) static collapse under vertical loads only, and (b) static collapse with added wind load. The columns having been designed elastically, the whole structure is then analysed for its sensitivity to incremental collapse and alternating plasticity, and the shakedown load factor is determined. J. Heyman, R.P. Johnson, P.P. Fowler and I.P. Gillson

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Format:
PDF
Publisher:
The Institution of Structural Engineers

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Issue 4

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