Thesis (Ph. D.)--University of Hong Kong, 1989.

published_or_final_version / Civil Engineering / Doctoral / Doctor of Philosophy

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Column design methods for multi-storey frames commonly used in North America are based upon two nomograms prepared by Julian and Lawrence. The various assumptions behind the equations of these nomograms necessitate a realistic review of the effective column length factor which defines the load carrying capacity of the column. For multi-storey frames subjected to gravity and lateral loads, a theoretical solution based on matrix formulations has been developed. Experiments were done on an aluminum framework designed to verify the behaviour of the multi-storey frame and the columns as a part of the frame. The behaviour observed for different loading patterns is compared with the theoretical solution using a proportional multiplier of load as parameter. The Southwell plotting technique, is applied to find the critical loads of column members in the loaded frame. Comparisons with the present code are given for interior, exterior and tier columns.

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The present Bachelor thesis is written about a rock slide which took place in the southern part of Stockholm in the early 2000s. The studied area is located relatively close to a steeply-dipping fault with NW-SE orientation. The field work was carried out by four students, with me and other student focussing on the rock slide slope and two scan lines N and E of the rock slide. The geological structures, which were assumed to be responsible for the rock slide, have been studied carefully during surface mapping. The data was analysed using two rock mass classifications and stereographic projection. Additionally, a digital elevation map of the area was analysed in terms of slope angle distributions using GIS. It was shown that the orientation of discontinuities at the site coincides with the direction of the cutting work. Thus, the rock slide was unavoidable since the cutting work was carried out subparallel to the fractures main orientation.

A building is composed of two main types of components: structural components (see Figure 1) and non-structural components (NSCs) also called operational and functional components (OFCs) (see Figure 2). OFCs are those components or systems housed or mounted in the buildings which are not part of the main or intended load-resisting system of the structure. Therefore, the building structure is commonly called “primary structure” or “supporting structure” and OFCs are also known by alternative names such as "non-structural elements", "building attachments", "architectural, mechanical, and electrical elements", "secondary systems", and "secondary structural elements".