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Can anyone clarify whether I am on the right track? When you calculate shear due to wind, this is the method I used to calculate the demand V. Wind pressure according to MWFRS with all appropriate factors X width of the face of the building X total height of the wall+any roof. Then I used the...

From what I have read, when you use a deflection criteria for live load deflection to be less than L/360, IBC2000 requires you to use L/240 as the total load criterion. I know for IBC2003 this is true. I was wondering if IBC 2000 also mandates this combination or can we use L/360 and L/180 instead?

Plotting thick lines has to do with pen width. Got to paper space and go to page setup. Then click on your plot style. If you are using color based plotting - check the color setting in the plot styles table - there is a form view. Make sure that the following are set like I have listed linetype...

conversely change your dim units to architectural it will give you the foot symbol

I agree with borgunit. There is on way of seperating the scaling. Although in lisp you could look for the particular entity and change the dotted pair for scale and try. I am not sure if it would work. XREF are external entities so it may affect your original drawing too - be careful.

This is an interesting discussion. Let me add to it. Yes, even in texas we are supposed to incorporate all the loading the EOR specifies in his plans. We send a set of truss calcs and a layout sheet for EOR approval too. I am no expert, but here is my take on the various issues involved. I am...

Wind design with velocities is not that far away from designing with pressures. After all I can use a modified Bernoulli's kind of equation to convert velocity to pressure. And yes the ultimate calcs in the American codes also is based on pressures. If you look at the contour maps published by...

We regularly design trusses with drag loads that transfer from the roof diaphragm. I am wondering if anyone knows of a quick source to calculate drag forces on a particular building, say a rectangular approximation that can put us in the ball park. Sometimes the building designers specify...