Performance of bolted splice connection in I-girder composite bridges under tanker fire

Saglik, Huseyin; Chen, Airong; Ma, Rujin

doi:10.1016/j.jcsr.2022.107590

Cited by 10 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it is not always possible to predict the load distribution and the motion of the bolts in complex connections such as beam-to-beam splice connections, especially in fire. In this context, a numerical study can be found on beam-to-beam splice connections under tanker fire in Saglik et al (2022). Setting up a contact step is not necessary for the explicit solver since it does not look for an equilibrium of the equations like the implicit solver does in every increment.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Simulation of bolted connections under fire: optimization and model validation

Saglik

Chen

2023

JSFE

View full text Add to dashboard Cite

PurposeBeginners and even experienced ones have difficulties in completing the structural fire analysis due to numerical difficulties such as convergence errors and singularity and have to spend a lot of time making many repetitive changes on the model. The aim of this article is to highlight the advantages of explicit solver which can eliminate the mentioned difficulties in finite element analysis containing highly nonlinear contacts, clearance between modeled parts at the beginning and large deflections because of high temperature. This article provides important information, especially for researchers and engineers who are new to structural fire analysis.Design/methodology/approachThe finite element method is utilized to achieve mentioned purposes. First, a comparative study is conducted between implicit and explicit solvers by using Abaqus. Then, a validation process is carried out to illustrate the explicit process by using sequentially coupled heat transfer and structural analysis.FindingsExplicit analysis offers an easier solution than implicit analysis for modeling multi-bolted connections under high temperatures. An optimum mesh density for bolted connections is presented to reflect the realistic structural behavior. Presented explicit process with the offered mesh density is used in the validation of an experimental study on multi-bolted splice connection under ISO 834 standard fire curve. A good agreement is achieved.Originality/valueWhat makes the study valuable is that the points to be considered in the structural fire analysis are examined and it is a guide that future researchers can benefit from. This is especially true for modeling and analysis of multi-bolted connections in finite element software under high temperatures. The article can help to shorten and even eliminate the iterative debugging phases, which is a problematic and very time-consuming process for many researchers.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%