Thesis

PRELIMINARY DESIGN OF TALL BUILDINGS
by Madison R Paulino A thesis Submitted to the Faculty Of the

WORCESTER POLYTCHNIC INSTITUTE
in partial fulfillment of the requirements for the Degree of Master of Science in Civil Engineering May 2010

Approved by _________________________________________________ Thesis Advisor: Prof. P. Jayachandran_________________________________________________ Prof. Leonard D. Albano

_________________________________________________ Prof. T. El-Korchi, Head of the Department

ABSTRACT
Techniques for preliminary analysis of various tall building systems subjected to lateral loads have been studied herein. Three computer programs written in Matlab® graphical user interface language for use on any personal computer are presented. Two ofthese programs incorporate interactive graphics. A program called Wall_Frame_2D is introduced for two-dimensional analysis of shear wall-frame interactive structures, using the shear-flexural cantilever analogy. The rigid outrigger approach was utilized to develop a program called Outrigger Program to analyze multi-outrigger braced tall buildings. In addition, a program called Frame Tube wasdeveloped which allows analysis of single and quadbundled framed tube structures. The tube grids are replaced with an equivalent orthotropic plate, and the governing differential equations are solved in closed form. Results for lateral deflections, rotations, and moment, shear, and torque distributions within the various resisting elements are compared against other preliminary and "exact" matrixanalysis methods for several examples. SAP2000 was used to obtain "exact" results. The approximate analyses are found to give reasonable results and a fairly good indication of the behavior of the actual structure. These programs are proposed for inclusion in a knowledge-based approach to preliminary tall building design. The tall building design process is outlined and criteria are given forthe incorporation of these "Resource Level Knowledge Modules" into an integrated tall building design system.

ACKNOWLEDGMENTS

The author wishes to express sincere thanks to Dr. P. Jayachandran for his timely advice and patience throughout this endeavor. Thanks are extended to all faculty members of the Civil & Environmental Engineering department at the Worcester Polytechnic Institute,especially to Dr. P. Albano, whom I had the opportunity to work with throughout this journey. I sincerely appreciated my heroes, my parents, Carmelo and Milagros Paulino, for their unconditional love and endless sacrifice in bringing me up and offering me an opportunity to achieve my goals. Who I am at this point is directly the result of their courage, wisdom, and faith in their sons. I amthankful to my brothers, Enger, Edward, and Johan Paulino for their generous hospitality and support. To my uncle and cousins, Jose Paulino, Emmanuel Flores, and Chabelly Paulino for their special support too. And for all my family, I laid the path, and proved to all that anybody can reach any objectives desire with determination. I love you all and always will keep all of you close to me in myheart. This work is also dedicated to God, who gave me encouragement, strength, and confident when I need it the most.

Table of Contents
ABSTRACT...................................................................................................................................................... 2 ACKNOWLEDGMENTS................................................................................................................................... 3 Table of Contents .......................................................................................................................................... 4 List of Figures ................................................................................................................................................ 7 List of Tables...