Author: Allen, D N de G;Severn, R T
First published: N/A
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Allen, D N de G;Severn, R T
In view of the recent interest in lightweight fire protection to steelwork, the writer would like to put forward for consideration some thoughts on designing steelwork especially for storage or other structures where risks are high.
Connexions employing high strength bolts have been shown to have many advantages oer riveted connexions but there are a number of aspects relating to the use of these bolts that remain imperfectly understood. One of these is the establishment of a satisfactory method of tightening. The requirements are (i) an accurately induced pre-load in the bolt, (ii) simplicity, both in tightening and in checking, and (iii) an adequate factor of safety against bolt failure resulting from over-tightening.
Professor Royston Jones and Alan Robert Baker
The critical load of a plane frame is that at which the resistance offered by the frame to any random disturbance is nil. For this state the stiffness matrix corresponding to all possible disturbances is singular. The elements of this matrix are quantities used in the moment distribution methods pieviously proposedthe moment distribution methods pieviously proposed and for most loads, not close to the critical load, the stability, or otherwise, of the frame is determined by inspection without performing the moment distribution. For loads near the critical load the problem is transformed into the calculation of the largest latent root of an allied matrix. This calculation is simpler than moment distribution.
S. J. McMinn