BASIC STUDY ON THE THERMAL EXPANSION OF WATERPROOFING ROOF CONSTRUCTION MADE OF STAINLESS STEEL SHEET : Theoretical development of a linear formula and verification by computation using the finite element method(Materials and Construction)

Abstract

A linear formula on the amount of thermal expansion for the membrane and frame, which are used for waterproofing roof made of stainless steel membrane, was theoretically developed and the accuracy of this formula has been confirmed and verified by means of computation using the finite element method. As a result, it has been verified that the calculated result of this theoretical formula duly coincides with that of computation by the finite element method. By the application of this formula as well as the finite element method, the displacement of stainless sheet, frame and clip can be estimated and the tensile force produced in the axial direction of membrane, as a form of internal stress as well as the evaluation of maximum length can easily be estimated and evaluated.