Date Approved

11-18-2016

Embargo Period

11-21-2016

Document Type

Thesis

Degree Name

M.S. Civil Engineering

Department

Civil and Environmental Engineering

College

Henry M. Rowan College of Engineering

Advisor

Douglas Cleary

Committee Member 1

Amirhossein Iranmanesh

Committee Member 2

William Riddell

Keywords

assemblies, bolted, distribution, non-linear, relaxation, time-dependent

Subject(s)

Structural design; Structural analysis

Disciplines

Structural Engineering

Abstract

The purposes of this investigation were to (a) extend previously developed elastic spring models for bolt assemblies to include simulating creep loss in the bolt and the threads and (b) to present an approach in which appropriate spring stiffness in the model are determined rationally. Previous efforts at modeling tension in bolts have been limited in that they were not readily applicable to analyses of realistic bolted connections. The simulated load distributions on the shank and the threads in a single-bolt assembly showed good comparison to the gathered experimental data as did the simulated, time dependent creep loss in the bolt. The ultimate goal of this research is to develop a model that includes nonlinear behavior that is suitable for investigating realistic multi-bolt connections.

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