Sensitivity Analysis of Continuous Web Plate Joint of Steel Beam to Concrete-Filled Steel Tubular Column Based on Correlation

摘要

This paper deals with probabilistic sensitivity analysis of a semi-rigid joint of continuous web plate based on correlation analysis. Firstly, a numerical study was carried out by the software package ANSYS, which was validated using experimental results. Secondly, parameters sensitivity analysis was executed via ANSYS Probabilistic Design Analysis. Considering correlations in primary parameters, all random parameters were varied at the same time based on Monte Carlo simulation. An special expression between geometric parameters and moment-rotation model was then discussed. Thirdly, the moment-rotation model of the joint was obtained. The composite constant of the moment-rotation model was determined by partial derivative of any parameter from the model. It is concluded that the parameters of the model have notable physical meaning and the proposed model is accurate and acceptable.