The analysis of the elastic earthquake respmse of non-symmetric multi-storey structures is presented, with consideration of the partial restraint of the structure in the subgrade. The analysis is based on the continuous connection method, using the normal modes of the structure. Several numerical examples represent the influence of the structure's eccentricity and the subgrade's rigidity on the response. E. Mendelson and M. Baruch
The paper shows how a beam and column support system for a shear wall can be included in a plane frame analysis. This technique which is valid for both vertical and lateral load can be used to analyse the wall and its support system in one computer run. Comparison with finite element results illustrates the accuracy. I.A. MacLeod and D.R. Green
The pilot scheme of Special Study Groups was established by Council to create opportunities for the members of the Institution to exchange ideas and work on deepening and developing their knowledge of various aspects of structural engineering, thus stimulating a greater interest in and promoting the art and science of structural engineering. One of the conditions laid down was that each Study Group should make a report to Council detailing the nature and results of its study. The first to report is the Special Study Group on Statutory Control of Building and Engineering Works. Council have authorized the publication of the Report as a contribution from members to the continuing discussion on the topic of sfafutory control. The report does not necessarily reflect Institution policy.
This paper describes the analysis of Gateshead Highway, an elevated urban road viaduct. The viaduct is a multicellular box of prestressed concrete with complex ramp intersections. The analysis was carried out using an equivalent grillage and this was justified by comparing it with a more sophisticated conceptual model, and with the results of model tests. W.J.R. Smyth and S. Srinivasan
The paper reviews recent research work on the flexural strength of brickwork and of non-loadbearing panels simply supported on three and four sides. Walls whose lateral resistance depends on in-plane forces are also considered. Within certain limits, it is possible to estimate the strength of the various types of wall and the question of safety factors, which are necessary to apply this knowledge in design, is discussed. A.W. Hendry