Evaluation of Load-Bearing Performance of Existing Cast Steel Node
Abstract: This paper presents
a preliminary evaluation of the load-bearing performance of an existing cast
steel node in a constructed tennis stadium using numerical simulations and
non-destructive field tests. Given the absolute stress values of the existing
cast steel node were immeasurable, the accuracy of the numerical simulations
were verified by comparing the stress increments derived from numerical
simulations and non-destructive field tests. During the experiment, the
existing cast steel node was loaded indirectly by moving the retractable roof
to three different positions (i.e. closed, semi-opened and fully-opened
configurations); thus, only the stress increments were recorded. Three
simplified truss models and one solid finite-element model were developed to
simulate the stress distributions with the corresponding roof positions. A
comparison suggests that the stress increments simulated with the developed
finite-element models were in good agreement with experimental results.
Therefore, the simulated stress distributions can be used to judge the
load-bearing performance of the existing cast steel node.
Keywords: Existing Cast Steel
Node; Stress Increment; Numerical Simulation; Non-Destructive Field Test
Author: Yusheng Su, Xinkui Li,
Xiaoping Wu
Journal Code: jptsipilgg170013
