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Mostrando las entradas de marzo, 2011

Launching Girders

HIGH RISE STRUCTURES. INTRODUCTION

In the design of high-rise buildings, different sectors and specialists gather in workshops to sort out an optimum design in terms of aesthetics, creativity, built ability and economy. The main elements involved in the design are shear core, footings, beams, floors and columns. In terms of the total cost of HB, floor is 40% and core a 30%. Therefore, an economic design has to reduce the floor or wall thick, because just a couple of millimeters imply a huge decrease in the total cost. Designs can be improved learning of the other’s mistakes. First, the design of short beams cannot be analyzed thinking that its behavior is similar to a beam under bending moment, which implies a minimum reinforcement. The right design should be made considering a truss model. Second, when is required a construction joint, the grout should be a concern thus the strength should be rise at least the same strength resistant of the concrete. Third, pedestrian comfort is a topic usually not though