My client would like to use an HSS member as a driven steel pile - however during plan review the reviewer stated that the A500 or A1085 steel that we are specifying is not allowed per the California Building Code (which this section is the same as the IBC).
2013 CBC
1810A.3.2.3 Structural...
I am looking for a referral for legal representation to create a personal and family trust. I am finding it very hard to find representation that has dealt with the high liability that a structural engineer is subject to.
Some general info:
- I am a licensed structural engineer in multiple...
We have a current project where the contractor cored holes through an existing masonry wall without locating the rebar first. As such when they cored the wall they also cut one vertical bar in each core hole. Now we need to fix the wall. What are cost effective procedures to repair this?
Thanks PMR06
I obviously need to ensure my FBD is complete before I run my numbers, and confuse myself.
Lion06
The sketch was intended to indicated fixed connections at A and B and the dot was for locating the point of interest.
Per the attached sketch and using basic statics you obtain different answers for the moment about A for an open structure.
The sketch shows an open structure analyzed using ASCE 7-05.
The method on the left uses a distributed load and then transfers the moment.
The method on the right...
I am working on a canopy project that utilizes cantilevered columns for the sesimic resisting system. The canopy is simple structure - Steel column, steel beam, steel purlins, all supported on drilled peir foundation. There is no diaphram, all lateral loads are transferred through bending. The...
Thanks everyone for your input.
I was at the site today. It turned out there were not many failures in our fix at all only 3 screws out of over 4,000 screws so less than 0.075% as such this is clearly a reasonable number to consider those screws defective.
However we have gone with over sized...
Easier questions than my previous one; I think.
I design a lot of canopies and one thing I have been considering is going to a box truss for the beam and the column. This would be similar to that of the box truss members used for stage lighting and trade show displays. The issue with this is...
I am having an issue on a job with thermal expansion.
The structure is an exterior canopy (open structure - no walls) that utilizes open framing (i.e. all the framing is open below and visible).
The purlins for the roof are 10" tall 18' long 12 ga. cold form C-channels. The client does not...
I am looking for input on the Iyc value used in Eq. C3.1.2.1-14 in the 2001 AISI Standard for a C channel member with lips.. I have been taught it is simply the Iy published by the manufacture divided by 2. I am not sure if that is correct. Additionally I have seen other engineer’s calculations...
I guess let me clarify my question some. I understand I have to keep in mind unbalanced loading and the rotation of the column. I am not looking to know the overall deflection at the end of the beam due to the framing system.
What I am looking for is the deflection just of the beam due to the...
I am looking for some help in designing a double cantilevered beam. The member I am inquiring about is the beam on a "T" shaped structure and an "OFFSET T" structure. The structure is designed as a cantilevered column with a beam on top. The beam on the "T" shaped structure has spans equal in...
Any one know the allowable torsion on steel?
I have a plate that will be subject to a torsional moment of 17,123.92 in-lbs and it is 11" wide. I am trying to size the depth.
Any help on the process would be helpfull. I have never done torsion on steel before.
Dustin
It is what the architect wants, however I think I am just going to change it to aluminum. But it would still be usefully to know the properties and ASTM # of wrought iron.
Does any one know the current ASTM # and structural properties for wrought iron? Doing a guardrail system for a deck and I have never designed with wrought iron before, usually just wood, steel, and aluminum. I know the old number is ASTM A753 but do not know any more than that. Thanks for any...
