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Title: Optimum design of sway frames
Author: Islam, M. Anwarul
ISNI:       0000 0001 3587 3088
Awarding Body: University of Warwick
Current Institution: University of Warwick
Date of Award: 1978
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The work presented in this thesis consists mainly of three design methods for sway frames based on the minimum-weight concept. For multistorey frames the aim has been to produce quick, simple and inexpensive design methods that can be used without recourse to a large computer. The proposed direct design procedure for multistorey sway frames to limiting deflections at working load is suitable for hand calculation and the discrete properties of standard rolled sections can be taken into consideration. Design charts have been presented to reduce the amount of calculation. For the design of multistorey frames to strength, stability and deflection requirements, an approximate elastic-plastic analysis procedure has been developed using substitute frames. Design by this method is based on the frame behaviour up to collapse while satisfying the permissible deflections at working load as specified by the codes. For small frames, hand calculations can be used, whereas simple programmes suitable for desk-top computers enable rapid design of large frames. A computer analysis procedure for members with varying cross- sections has been developed using the matrix displacement method. This has been used to evolve an optimum design method for single-bay pitched-roof tapered portal frames to strength and deflection requirements. A linear programming technique has been used to solve the non-linear functions of the optimisation problem by following a multi-linear path.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: TA Engineering (General). Civil engineering (General)