Abstract:
In recent years there has been a considerable increase in the number of tall building,
both residential and commercial purpose and the modern trend is towards taller and
more slender structures on a small piece of valuable land. In our country most of this tall
building is attributing shear wall to resist the effect of lateral load like wind load,
earthquake load, blast forces etc. As construction of tall building is relatively new
phenomenon in Bangladesh, most of the practicing civil engineers have little knowledge
about the analysis and design of shear wall building. During the analysis of a frame-wall
structure, most of the cases the designer faces problem in modeling of shear and core
wall. So the prime objective of this thesis is to carry out a comparative study among
different modeling techniques of shear wall to suggest a simple guideline within
reasonable accuracy of result. For this purpose various model has been prepared on an
idealized problem and the results obtained from two-dimensional model is compared with
those obtained from three-dimensional model. Analysis on two-dimensional model is
performed by MICROFEAPand three-dimensional analysis is performed by SAP90 and
STAAD-III. It is also studied that whether the results of the model vary significantly with
the increase of height of the building. Moreover, effect on moment carrying capacity of
shear wall due to change of its moment of inertia is checked.
Like the modeling and analysis of shear wall the design engineer also face trouble in
designing it, because the code provisions are not very much specific about shear wall.
Also the code requirements for shear wall are dispersed in various chapters. Code
provisions in Bangladesh National Building Code (BNBC), American Concrete Institute
(ACI) code, Uniform Building Code (UBC) and British Code of Practice (BS 8110) are
studied in this thesis and a straightforward guideline is suggested for the design of shear
wall.
