I'm manually drafting a floor plan layout and need to determine appropriate graphical symbols for various tension and shear connectors. Since there are many types and variations, I'd like to standardize the symbols. Here are a few examples of the connectors I need to represent:
HD: Tension...
Hi to all,
I am currently working on the design of a single-storey reinforced column supporting a reinforced flat slab. The slab is subjected to vertical loads only, with no horizontal forces (e.g., from wind or earthquake). The structure includes both exterior walls and interior columns, with...
Hi to all,
I’m have problem with large reinforcement area over columns in flat slab (30cm thick and 8.3m span). I’m in search for some guides how to model column supports to reduce peak hogging moments.
Can you help with ASCE provisions or any other guides, practices in USA.
I’m already found...
Hello everyone,
I'm wondering if there are any concerns in placing Ø25 (#8) longitudinal/tension bars in 40cm (15.7inch) spacing in 100cm (39.4inch) thick mat foundation? This reinforcement will be placed in foundation areas where bending moments do not exceed cracking moments (the resistance...
Hi to all,
I am wondering how to design concrete beam which support shear wall loaded by earthquake. According to capacity design I have to protect the beam from collapse and avoid plastic hinges formed in the beam.
Okay, but which reduction factor should I use to calculate earthquake force...
Hi to all,
I'm wondering what's the theory behind limiting the length to width ratio between joints in a slab on grade?
It's widely known that the ratio of panel length to width shouldn't exceed 1.5. Panels with excessive length to width ratios are likely to crack at the mid-panel point or at...
Hi to all,
I'm wondering for shortcut to Set Elevation View in Etabs?
Is there any other way than pick desired Elevation view from the list offered by Etabs via View menu > Set Elevation View?
Picking from the text lists is very time consuming, especially in cases with a lot of saved Elevation...
Hi to all,
I'm wondering why each ground slab-panel shall be kept as square as possible? Maximum length to width ratio should be less than 1.5:1.
What's the theory behind this rule of thumb?
Thank you for all comments
Hi,
I'm trying to correctly assign Absolute Directional Combination in Etabs...but it seems that I'm not on the right way.
In Load Case data (Type=Response Spectrum) I defined two acceleration. Direction U1 and U2. Then I assigned Absolute Directional Combination Type...and assigned 0.3 for...
Hello,
I'm wondering how to correctly design wire rope bracing? How to define initial (pre)tension, should I include/neglect self weight?
Any comments/guidance are highly appreciated.
Thank you in advance
Hello,
I’m wondering how to correctly estimate/calculate the right axial force in industry hall roof brace (with only tension forces)? Hall main elements are concrete columns (without any shear walls). Roof is made from soft steel sheets which I can’t model as rigid diaphragm. Will modal...
Hello,
I’m wondering how to correctly model wood frame shear walls (sheeted from both sides) to get best estimation of axial forces in (edge) studs.
I’m working on 4 storey building where gravity load will govern the design since there are low wind and earthquake forces. I’ve decided to model...
I’m modelling 3 storeys structure (in SAP2000) and now I’m looking for basic Eigen modes of a particular slab? How can I do that?
I suppose that running a whole structure modal analysis (and manually/visually search for the proper modes) is not the only way to find Eigen modes of a slab? Is...
Does anyone have any recommendations for good wood frame structural software?
I'm looking for the software whith:
1) Automatic generation of framing loads and reaction transfer all the way to foundation (load transfer).
2) Automatic calculation of wind and seismic loads (with lateral design of...
Hello,
Complex steel components (e.g. connections) force me to move from basic 2D design (beam as linear FEM) to 3D elements (beam as solid/3D FEM). Can you recommend me some literature to fresh my out of date knowledge (which stresses to be checked in ‘normal’ problems, ‘shear’ problems, can...
Hello,
Complex steel components (e.g. connections) force me to move from basic 2D design (beam as linear FEM) to 3D elements (beam as solid/3D FEM). Can you recommend me some literature to fresh my out of date knowledge (which stresses to be checked in ‘normal’ problems, ‘shear’ problems, can...
Hello,
Complex steel components (e.g. connections) force me to move from basic 2D design (beam as linear FEM) to 3D elements (beam as solid/3D FEM). Can you recommend me some literature to fresh my out of date knowledge (which stresses to be checked in ‘normal’ problems, ‘shear’ problems, can...
Does anyone have any recommendations for good wood frame structural software?
I'm looking for thesoftware whith:
1) Automatic generation of framing loads and reaction transfer all the way to foundation (load transfer).
2) Automatic calculation of wind and seismic loads with lateral design of...
Hi,
I'm wondering which American timber grade (NDS) is closest to European grade C24? I want to do a timber design according to American National Design Specifications (NDS) with European timber C24.
Any help/comments/suggestions are highly appreciated.
Thank you in advance.
