Composite Action of Beams and Slabs under Transverse Loading. (111) A Rectangular Slab with Repeated

When an external force is applied to a point in an elastic structure the direction of the deflexion at the point will, in general, deviate from the load line. A general relationship is established connecting the deflexions and deviations caused by forces applied in different directions. A short investigation is made of the deflexions caused at one point by loads applied at some second point. The analysis is confined to cases where the lines of force and deflexion are coplanar. A. Ormerod

The Hardy Cross, or Moment Distribution, method of frame analysis offers interesting possibilities, when used on an automatic digital computer. For a number of years the analysis of elastic hyperstatic frames by computer has been mainly carried out by methods which require the explicit solution of large sets of simultaneous equations. If conventional techniques are used to solve the equations, the storage space required in the memory of the computer is approximately proportional to the square of the number of joints in the frame. This means that in practice, with present-day computers, only relatively simple frames can actually be analysed by these methods.

THE PRESIDENT proposing a vote of thanks to the author, said the subject was fascinating and the Institution was extremely grateful to Mr. Kell for his paper.