Author: Brooks, J J;Gamble, A E;Chouman, M M
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Brooks, J J;Gamble, A E;Chouman, M M
The Structural Engineer, Volume 70, Issue 1, 1992
The paper summarises the results of three load tests on composite beams of 1Om span, comprising one control composite beam (i.e. without opening) and five rectangular openings of various sizes and locations. The tests were carried out under simulated uniform load and were taken to failure of the beam at each opening. The results of the tests have been compared with existing guidance in the SCI/CIRIA publication Design for openings in the webs of composite beams. The overall model factor, representing the margin between the tests and the design method (eliminating partial safety factors and using measured properties) was in the range of 1.04 to 1.47. Reasons for this apparent conservatism are given. The control composite beam was also tested to failure without the presence of openings, and the results were compared with the method of BS59.50: Part 3. This gave a model factor of 1.04. R.M. Lawson, K.F. Chung and A.M. Price
Part 3 (introduction) The 1991 examination was attempted by 1110 candidates, an increase of 106 on last year’s candidate figures. The overall pass-rate of 39.3 % was 1 % down on last year’s figure, and it is somewhat disappointing to see the rate dip below the 40 % mark. The total number of UK candidates was 752, of whom 334 passed, a pass-rate of 44.4 %. The total number of overseas candidates was 358, of whom 102 passed, a pass-rate of 28.5 %.
Mr A. N. Bed (M) Thomason Partnership) It is unfortunate that, in recent years, masonry design has tended to be based too closely on concrete practice, some of which is of dubious merit. This paper is a welcome return of first principles in estimating strength of slender masonry, and it is no surprise to see the results agreeing more closely than BS 5628 does with experiments. Some years