To delete a span simply click the X icon below the plus. Clicking exit will not add a span and will return to the exact spot before the add span was selected. Type in the span distance you would like to add, specify the top and bottom unbraced lengths, and click save to add the new span. When the plus button is selected, it will bring up the New Span input box. To add or remove a span use the + and X icons shown by the image below to add or delete a span on either side. Input or select the number of laminations, width, depth of the beam *can be skipped for autosizeīelow is an image of the entire properties tab if Steel is selected as the material.Īfter the material and properties of the roof rafter are chosen move to the middle panel of the screen to edit the roof rafter span, reactions, and start the loading process.Structural Composite Lumber (SCL) Selection (Curved Glulam) Select for a curved glulam analysis, which includes radial stress checks.(Include Self Weight) Check for including the self weight of the roof rafter.(Total load deflection) Set the total load deflection limit which is in the form of (Span Length) / (Deflection Limit).(Live load deflection) Set the live load deflection limit which is in the form of (Span Length) / (Deflection Limit).(Include Creep Factor) Apply to include the creep factor.(Apply the Incising Factor) Select to include the incising factor.(Repetitive Use) Select to apply the repetitive use factor.(Temperature Factor) Select the temperature range of the design.(Flat Use) Select if the roof rafter will be used in the flat orientation.(Round) Select if the roof rafter is round, if selected the size option will revert to a radius only instead of width and depth, see image below.(Flitch Plate) Check to add a flitch plate to the roof rafter, if selected a new section will appear below the selection where you can complete the the thickness and number of flitch plates, see image below.Input or select the on-center spacing of the rafters.Input or select the number of laminations, width, depth of the roof rafter *can be skipped for autosize.(Concentrated Live Load) (ASCE 7-16 Section 4.4) A concentrated load is placed along the roof rafter (interval spacing can be set in settings) and the worst case placement of the concentrated live load is chosen for each load combination.(Check Unbalanced Live Load) (ASCE 7.16 Section 4.3.3) Check to cycle through the live loads being placed on each span in every combination of spans.(Include Self Weight) Check for including the self weight of the member.(Grade) Select the grade of lumber *can be skipped for autosize.Use each of these to guide you through the selection process. Click the icons to toggle back and forth between the two options for each.īelow is a list of the properties selections based on the material type. When Steel is selected as the material, a different set of properties selections are available.Īt the top of the properties tab is the LRFD/ASD design options, as well as the dry or wet factors button. Examples of this can seen for any of the material selections. As you move down the properties new selection dropdowns will appear based on previous dropdown selections. The template is used to set predetermined properties. On the left side of the screen is the Properties tab, work progressively from top to bottom to specify the desired properties. The following steps do not have to be completed in this order and are designed to work dynamically with each other, so don't worry if you realized later you clicked the wrong thing or made a mistake, just change that item and the rest will follow suit accordingly. This will load the roof rafter design module, which loads with a preset template. To start a roof rafter design first click on the roof rafter design module icon located in the design module dropdown in the upper right of the screen next to your username. If you prefer video walk-throughs, feel free to skip over to our YouTube channel otherwise, continue reading for an in depth walk-through: Summary: This guide walks you through basic use cases of the Roof Rafter Module in Vitruvius.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |