PARAMETRIC MODAL DYNAMIC ANALYSIS OF STEEL-CONCRETE COMPOSITE BEAMS WITH DEFORMABLE SHEAR CONNECTION

Authors

  • WANDERSON GONÇALVES MACHADO
  • FRANCISCO DE ASSIS NEVES
  • JOÃO BATISTA MARQUES DE SOUSA JښNIOR

Keywords:

DYNAMIC ANALYSIS, COMPOSITE BEAMS, DEFORMABLE SHEAR CONNECTION, FINITE ELEMENTS METHOD, NUMERICAL ANALYSIS

Abstract

COMPOSITE STRUCTURAL ELEMENTS OF STEEL-CONCRETE BEGAN TO BE USED ONLY IN 1960 AFTER THE DEVELOPMENT OF METHODS AND CONSTRUCTIVE DISPOSITIONS THAT ENSURED THE FUNCTIONALITY OF THESE TWO MATERIALS TOGETHER. IN ORDER TO VERIFY THE IMPORTANCE OF THE PARTICIPATION OF THE AXIAL MODE IN THE FREQUENCY SPECTRUM OF THE FREE VIBRATION PROBLEM IN COMPOSITE BEAMS WITH DEFORMABLE SHEAR CONNECTION, SEVERAL ANALYSES FOR 4 DIFFERENT BOUNDARY CONDITIONS AND STIFFNESS CONNECTION VARIATION WERE PERFORMED. THE ANALYSIS OF THE PROBLEM WAS CARRIED OUT BY DEVELOPMENT AND COMPUTATIONAL IMPLEMENTATION OF A FINITE ELEMENT FOR COMPOSITE BEAMS WITH PARTIAL INTERACTION IN THE LONGITUDINAL DIRECTION AP-PLIED TO THE PROBLEM OF FREE VIBRATIONS. THE SOLUTIONS TO THIS PROBLEM IN THE LITERATURE ARE SCARCE, AND PROJECT RECOMMENDA-TIONS ARE SIMPLIFIED. THE RESULTS SHOW THAT THE FINITE ELEMENT EXHIBITS AN EXCELLENT PERFORMANCE COMPARED WITH THE ANALYTICAL RESULTS AND AS THE AXIAL MODE HAS A HIGH MODAL CONTRIBUTION, DESPITE THE BOUNDARY CONDITION AND STIFFNESS CONNECTION.

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Published

2016-12-09

Issue

Vol. 14 No. 02 (2017)

Section

Articles

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