I'm looking for some refences on connection of wire rope (cable) for a permanent installation. This is for the lateral bracing for a HUD/FHA Manufactured Home modifiation. I remember seeing somewhere that cable clamps are not considered permanent installation. Thanks!
Hello all,
I looked at a modular foundation that is built like most are.....dry stacked piers. Is this specifically ruled out as an option from the FHA/HUD permanet foundation manual even if there are other lateral support systems such as X bracing and/or straps? Thanks!
Hello,
We are looking at a set of townhomes that is being re-roofed. As the roofer was removing the shingles they noticed the roof sheathing was very soft and aactually broke threw. The sheathing is supposed to be FRT plywood, but I can't seem to find anything on the grade stamp that confirms...
So I work for a small structural firm and we do a lot of small designs. When a letter is required, I write it, and sign it, and then the principal signs and SEALS it. Isn't it the same thing (repsonibility wise) whether I seal it or not if I put my PE after my name?
Hello all,
When a beam spans from column to column with knee braces going from the columns to the bottom of the beam how much does this reduce the span length? The knee braces our obvioulsy not design to carry the entire load of the beam so some of it is still going to go to the column. It...
Hello all,
I have a timber frame job here that the designer wants to use two smaller beams to carry a pretty large load. How do I calculate the shear stress for the connection between the two beams so that they act as one beam. The maximum moment is ~20 K*Ft. Take a look at the attached...
Just a curiosity question I've heard engineers change jobs more frequently than other professions? So...how many jobs have you had, and in what time frame 5,10,15 20 years?
We have a fairly long narrow diaphram. The shear loads are going to be a problem at the ends of the diaphram. Has anyone ever designed a diaphram so that the ends are "flared" so that the shear per foot is less than if the diaphram was a rectangle.
Do I understand the IBC right that as long as the area is not used for storage no portion of the Live Load needs to be included in the effective seismic weight, except permenant equipment? Don't most people include a portion of the live load to account for things such as furniture...
We are designing a lodge that will have some large open areas. I would like to use the chimney for part of the lateral force resisting system. Is this allowed by the IBC 2003...I can't find it...any comments on good idea or bad are appreciated Thanks.
Has anyone ever been asked to design a yurt? I have a client that needs a certified design on a yurt. The building department is requireing a sealed set of drawings. The building is 30' in diameter. I am having a little trouble with the wind loading and the whole wall system. Google Yurst and...
What is the best way to model a semi-rigid connection with an FE program. Most of the ones I've used don't have this as an option. We are looking at the sway in a frame that has been lateraly loaded. Any suggestions? Thanks.
In the IBC table 1604.3 the allowable deflection limits are given for diffrent types of members and the coverings. Footnote f says that for WL and SL the load can be taken as 0.7* Componet and cladding. This seems simple but I've never heard of that before. So does this mean that I can use...
Hello all,
I have been doing structural engineering for buildings for ~6-8 years. I have recently been considering moving toward bridge engineering. I have a PE. The architects are killing me!! Any thoughts from others structurals. How hard would the move be? Good idea bad idea...
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I am working on a timber frame project where we need to use an epoxy and a steel rod for a tension connection between two members. Does anyone have experience with this and what type of epoxy did you use? Is there any trouble with using it on green wood and long term creep of the...
Hello all,
Who legally has rights to drawings once they are issued other than the Client? If I work for a company and am the E.O.R. do I have a legal right to have the drawings if I leave the company? Thanks.
Does anyone know if log walls have been addressed in IBC in reguards to lateral design (Seismic and wind). I don't see anything in table 12.14-1 in the seismic section for logs? Am I missing it?
This is a general question for practing structural engineers....Do you require sealed shop drawings for all prefabriacted componets on a building you are the E.O.R.? I'm thinking of wooden trusses, timberframes ect. Where does the architect fall in the scheme of things if they are...
