EVALUATION OF ERROR OF INTERNAL FORCE PROBLEMS OF THREE-JOINT ARCH SYSTEM USING SAP2000

Abstract

The arch structure is special the following advantages: the ability to overcome great spans, and light self-weight. The arch structure often easy to creates strong impressions, suitable for iconic architecture such as national convention centers, exhibition centers, stadiums, supermarkets, airports, bridge structures… Structural analysis of this type often calculus methods or uses finite element software such as SAP2000 or Etabs to subdivide the bar into many elements. The paper's objective is to evaluate the error of the finite element method using SAP2000 with the reference beam method using the calculus solution.