Steel vessels in the form of combined conical-cylindrical shells are commonly used for liquid sto... more Steel vessels in the form of combined conical-cylindrical shells are commonly used for liquid storage in elevated water tanks. A number of such tanks collapsed in different places around the globe due to instability of the steel shells. An essential cause of those collapses is the lack of adequate design procedures for such structures. In this study, a simplified design
... steel panels welded together in the circumferential and longitudinal directions to form a tru... more ... steel panels welded together in the circumferential and longitudinal directions to form a truncated cone with an ... The first method suggests the use of an equivalent cylinder when studying the stability of ... The design of a conical tank incorporates the presence of many parameters. ...
Most transmission line failures worldwide are attributed to high intensity wind events such as mi... more Most transmission line failures worldwide are attributed to high intensity wind events such as microburst. The velocity profile and loads associated with a microburst wind field vary significantly with the microburst configurations. An optimization technique is coupled with ...
ABSTRACT The design of cable-stayed bridges is generally controlled by a large number of design v... more ABSTRACT The design of cable-stayed bridges is generally controlled by a large number of design variables and constraints, making the traditional design methods sophisticated, expensive, and time consuming. Moreover, the conventional design methods could not guarantee the cost optimality of the final solution. In this study, a numerical design tool that integrates a finite element model, genetic algorithm, simple polynomial functions for evaluating post-tensioning cable forces, and design methodologies is developed specially to optimize the design of cable-stayed bridges. The loads, design, and constraints used in the numerical model are developed based on the Canadian Highway Bridge Design Code CAN/CSA-S6-06. The efficiency and practicality of the proposed numerical design tool have been demonstrated by optimizing a practical sized cable-stayed bridge.
Steel vessels in the form of combined conical-cylindrical shells are commonly used for liquid sto... more Steel vessels in the form of combined conical-cylindrical shells are commonly used for liquid storage in elevated water tanks. A number of such tanks collapsed in different places around the globe due to instability of the steel shells. An essential cause of those collapses is the lack of adequate design procedures for such structures. In this study, a simplified design
... steel panels welded together in the circumferential and longitudinal directions to form a tru... more ... steel panels welded together in the circumferential and longitudinal directions to form a truncated cone with an ... The first method suggests the use of an equivalent cylinder when studying the stability of ... The design of a conical tank incorporates the presence of many parameters. ...
Most transmission line failures worldwide are attributed to high intensity wind events such as mi... more Most transmission line failures worldwide are attributed to high intensity wind events such as microburst. The velocity profile and loads associated with a microburst wind field vary significantly with the microburst configurations. An optimization technique is coupled with ...
ABSTRACT The design of cable-stayed bridges is generally controlled by a large number of design v... more ABSTRACT The design of cable-stayed bridges is generally controlled by a large number of design variables and constraints, making the traditional design methods sophisticated, expensive, and time consuming. Moreover, the conventional design methods could not guarantee the cost optimality of the final solution. In this study, a numerical design tool that integrates a finite element model, genetic algorithm, simple polynomial functions for evaluating post-tensioning cable forces, and design methodologies is developed specially to optimize the design of cable-stayed bridges. The loads, design, and constraints used in the numerical model are developed based on the Canadian Highway Bridge Design Code CAN/CSA-S6-06. The efficiency and practicality of the proposed numerical design tool have been demonstrated by optimizing a practical sized cable-stayed bridge.
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