N/A
Standard: £10 + VATMembers/Subscribers: Free
Members/Subscribers, log in to access
The Structural Engineer, Volume 55, Issue 6, 1977
A general method using the theory of thin walled structures is given for determining the natural frequencies and mode shape of core wall structures having closed or open section, subjected to torsion and bending using a finite element approach. Consistent mass matrices related to torsion and bi-moment effects have been derived using shape functions corresponding to (a) the static deflection configuration and (b) an assumed polynomial deflection configuration. The stiffness matrix developed on the basis of the proposed theory includes warping deformations and its use with the finite element method enables the possible changes in the storey segments to be fully represented, such as the thickness of the wall and the cross-sectional characteristics. D.V. Mallick and R. Dungar
Professor A. W. Hendry (F): In my department in the University of Edinburgh we have for many years been engaged on research work on unreinforced masonry. For the most part this has been concerned with clay brickwork sponsored by the British Ceramic Research Association and BDA but a limited amount of work has been carried out on concrete blockwork, particularly using lightweight aggregate blocks. Some of the results may be of interest in supplementing the work reported in the present paper.
The paper concerns the use of masonry infills for bracing steel or reinforced concrete frames against horizontal forces. J.R. Riddington and B. Stafford Smith