Recent Developments in Bridge Design in Japan

Codes of Practice Stan Lawrence reminds us of the origins of the change from elastic theory to limit stutes theory in the BS Codes and writes: Bearing in mind the present climate of discontent and concern over Codes and regulations, it is understandable that solutions are being considered. One has recently surfaced in a disguised form requesting a return to the elastic theory as a permitted design method. Verulam

The movements and strains which take place in masonry arches, and the way in which those strains lead to longitudinal cracks, are described. Some traditional views are considered to be untenable. The causes of the cracks have some implications for assessment and repair: Observations are made on the repair of cracks. Professor W.J. Harvey

This paper describes a series of tests on reinforced concrete beams and develops an analytical model for calculating the shear strength of members with low shear spans. The model is extended to quantify the influence of link spacing on the shear strength cfmembers with links. D.E. Parker and P.J.M. Bullman