<
From version < 154.1 >
edited by Fredrik Lagerström
on 2020/03/30 15:49
To version < 155.1 >
edited by Fredrik Lagerström
on 2020/03/30 15:50
>
Change comment: There is no comment for this version

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76 76  
77 77  |(% style="width:85px" %)[[image:1585574210158-767.png]]|(% style="width:1405px" %)Element-based //Auto design// finds the most suitable position and distribution of longitudinal bars and stirrups for selected unique or grouped members only according to their user-defined design parameters. Initial reinforcement (steel quality, diameter, profile, concrete cover) and design (aggregate, vibration) settings can be set for the concrete members/groups with the [[image:1585574241422-868.png]] //Parameters// tool of //Auto design//.
78 78  
79 -
80 80  [[image:1585574252957-683.png]]
81 81  
82 82  Figure: Design parameters
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125 125  
126 126  * **Cross-section**
127 127  It shows the cross-section of the current concrete bar. The definition of new longitudinal bars (sectional position) and stirrups (shape) starts in this window. The position of the cross-section (section view) can be set by moving the section marker in //3D view: //
128 - [[image:1585574451276-123.png]]
127 + [[image:1585574451276-123.png]]
129 129  * **3D view**
130 130  It shows the side view of the concrete bar by default. But, any 2D and 3D view can be set with the //View// menu commands (e.g. general 3D view with //View > Space view//). The start and end pont (and so the length) of longitudinal bars and the position (the distribution) of the stirrups can be defined here.
131 131  * **Interaction surface view / Result window**
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197 197  
198 198  |(% style="width:106px" %)[[image:light.png]]|(% style="width:1384px" %)The contour defines the stirrup shape, if the //Cover// value is set to 0.
199 199  
200 -
201 201  |[[image:1585574885365-773.png]]|You can modify the properties (quality, diameter, profile etc.) of previously defined bar/stirrup reinforcement(s) with the //Properties// tool of //Longitudinal bar// and //Stirrup//.
202 202  |[[image:1585574877068-421.png]]|(((
203 203  To exit from //Manual design// with validating the new and modified reinforcement bars and stirrups, click //OK//.
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204 204  )))
205 205  |[[image:1585574893040-889.png]]|To exit from //Manual design// without accepting the defined and modified reinforcement, click //Cancel//.
206 206  
205 +=== Result window tools ===
207 207  
208 -==== __Result window tools__ ====
209 -
210 -
211 -
212 -
213 213  In Result window tools one can chose the result type to display (interaction surface of the designed bar, or a summary of utilizations for different design checks) and customize displayed results.
214 214  
215 215  When //Result// window is activated, //Result window tools// pops up. It contains options to control the content of //Result window.//
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662 662  
663 663  
664 664  
665 -
666 666  1. The cross section of the equivalent bar is 1 m wide and its height equals to the thickness of the shell. Along the bar, the applied reinforcement of the shell is transformed into the direction of the bar and placed into it.
667 667  
668 668  [[image:file:///C:/Users/Fredrik/AppData/Local/Temp/msohtmlclip1/01/clip_image099.png]]
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699 699  1.0 m
700 700  )))
701 701  
702 -
703 703  1. Once the first order internal forces are obtained in every section, the second order internal forces are calculated based on the //nominal stiffness// or //nominal curvature// method, according to the configuration settings. The only difference in the checking process of a real bar and this equivalent bar is that now the eccentricity coming from the second order effects are applied only perpendicularly to the plane of the shell. In other words, the out-of-plane normal force has eccentricity only along the z’ axis of the shell. This modification is in harmony with the fact that the buckling direction of the shell is perpendicular to the plane.
704 704  
705 705  |(((
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723 723  
724 724  
725 725  
726 -
727 727  1. Finally, based on the second order internal forces, the utilization is calculated for every cross section of the equivalent bar (based on the interaction curve), and the highest section utilization is assigned to the node.
728 728  
729 729  Shell buckling calculations are available for //Load combinations//, //Maximum of load combinations// and //Maximum of load groups//. The utilization results can be displayed in the //New result/RC shell/Shell buckling/Utilization//
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