An interconnected two-way grillage of portal frames spanning 82 ft 6 in. with a height above foundation level of 35 ft was adopted for the main boiler room of a new heat generating station for a precinct heating scheme in Bristol. The framework was designed in reinforced concrete and had to sustain a loading of approximately 1000 tons. Derek Bond
The relationship between the calculations which are carried out in structural design and the way in which the real structures behave under load is often not as close as is desirable. The effects of the walls and floors in building structures, for example, may have a considerable influence on the axial loads, shears and bending moments which the members of the frameworks sustain. A long span suspension bridge, however, is one of the 'purest' forms of civil engineering structures. The precise solutions of some of the problems which arise in its analysis are, therefore, particularly valuable and the opportunity of using electronic digital computers to obtain them holds a tremendous appeal. D. M. BROTTON N. W. WILLIAMSON and M. MILLAR
Introducing the paper Mr. Frischmann said that large diameter piles, with the help of soil engineering, offered us the possibility of economically founding buildings of the same height as those seen on the Manhattan skyline.