Numerical analysis and investigation of composite semi-rigid connections
Numerical analysis and investigation of composite semi-rigid connections
Semi-rigid connections possessing a certain degree of moment resistance and stiffness provide versatility for the construction of a building frame. In particular, composite connections can be used in frames to improve efficiency in design with minimal additional detailing. In order for semi-rigid connections to be designed their characteristics of strength and rotational capacities need to be defined to allow the analysis of internal forces. The finite element method is used to produce numerical models of semi-rigid connection components. In the scope of this thesis the components of the connection are investigated to establish stable and efficient modelling methods. Having drawn conclusions on component modelling a numerical connection model forms the basis of a parametric study on rotational stiffness. Different methods of predicting rotational stiffness are assessed and compared. The stiffness of the reinforcement, shear connection and bolts rows are investigated thoroughly to establish the new method of stiffness assessment. A detailed rotational stiffness prediction method is presented for composite endplate connections. A simplified design method is obtained from the complete method. This is compared with both finite element models and a number of full scale test results. The initial stiffness method is adjusted to allow calculation of the secant stiffness at higher loads. Some design examples are presented to demonstrate the variation of rotational stiffness in composite endplate connections.
University of Southampton
Troup, Simon Douglas
3656a96f-3f64-475b-840a-f88f49a5fffd
1999
Troup, Simon Douglas
3656a96f-3f64-475b-840a-f88f49a5fffd
Troup, Simon Douglas
(1999)
Numerical analysis and investigation of composite semi-rigid connections.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
Semi-rigid connections possessing a certain degree of moment resistance and stiffness provide versatility for the construction of a building frame. In particular, composite connections can be used in frames to improve efficiency in design with minimal additional detailing. In order for semi-rigid connections to be designed their characteristics of strength and rotational capacities need to be defined to allow the analysis of internal forces. The finite element method is used to produce numerical models of semi-rigid connection components. In the scope of this thesis the components of the connection are investigated to establish stable and efficient modelling methods. Having drawn conclusions on component modelling a numerical connection model forms the basis of a parametric study on rotational stiffness. Different methods of predicting rotational stiffness are assessed and compared. The stiffness of the reinforcement, shear connection and bolts rows are investigated thoroughly to establish the new method of stiffness assessment. A detailed rotational stiffness prediction method is presented for composite endplate connections. A simplified design method is obtained from the complete method. This is compared with both finite element models and a number of full scale test results. The initial stiffness method is adjusted to allow calculation of the secant stiffness at higher loads. Some design examples are presented to demonstrate the variation of rotational stiffness in composite endplate connections.
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Published date: 1999
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Local EPrints ID: 463659
URI: http://eprints.soton.ac.uk/id/eprint/463659
PURE UUID: f75fe456-fc74-4461-b1ec-d854ad560d46
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Date deposited: 04 Jul 2022 20:55
Last modified: 16 Mar 2024 19:05
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Author:
Simon Douglas Troup
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