Looking for any type of classical methods to analyze a round hollow concrete beam with axial load. It is really a cantilever tower that is 858 feet for the outside diameter and 81 feet interior diameter that is 615 feet tall. Wall thickness is 24 inches. I have the applied moment, so I now want...
thread507-377236
Anybody still have this download available? It usually came as a zip file. Would love to get a copy of the demo version.
Alan L. Lumpkin, MS, PE
Greenville, SC
Looking for guidance using Table A-3.1 in AISC manual for the fatigue equation for welding a cap channel to a wide flange beam. One option is continuous fillet welds and the other is intermittent fillet welds. It appears that for continuous fillet welds equation 3.1 is the correct one which has...
Generally looking for some guidance on how to design slab on grade for expansive soils. Geotech is recommending a monolithic grade beam stiffened non-structural slab supported by straight shaft piers. The recommendation is to remove the top 5 feet or so of the expansive clays. Below these clays...
Looking for commentary about the design of retaining wall (abutment wall) for rail loads from E80 Cooper engine when rails are perpendicular to the retaining wall …..not parallel.
Alan L. Lumpkin, MS, PE
Greenville, SC
Looking for your opinion concerning the need to reinforce tilt wall knock out panels. I've seen engineers both provide and leave out reinforcing at the knock out panel.
For a typical 10'-0" x 10'-0" opening I would leave out the reinforcing in the knock out portion. The jambs have been...
Anybody got old load tables for SMI joists from the early 1990's? Looking for 30K ......got some old joists used in a STAR PEMB.
Alan
Alan L. Lumpkin, MS, PE
Greenville, SC
Looking for knowledge of an existing Excel spreadsheet that designs the gusset plates in a typical OCBF. This spreadsheet would need to check both tension and compression loads for a BOLTED connection per AISC 360-10. For compression, this means a check of the Whitmore section and for tension a...
LOOKING FOR SOME CONFIRMATION THAT RAILWAY LOADS FOR A COOPER E-80 IS SIMPLY POINT LOADS BEHIND A RETAINING WALL. I CANNOT FIND ANY RULES DICTATING ANY GUIDELINES. SO, I AM USING A COOPER E-80 POINT LOAD (60K) 1 FOOT BEHIND WALL PLUS ANOTHER POINT LOAD (60K) 6 FEET BEYOND THE WALL FACE (5 FEET...
Looking for some help for diaphragm action using Precast Channel Slabs ......made back in the 1950's....maybe 1960's. Basically, it is a 8'-0" x 4'-0" x 2-3/4" plank with thicker ribs at the edges. Typically, they are connected to the steel below by a single finger clip at every other channel...
I am completing some collapse prevention analysis for cold formed metal framed structures. I need overstrength factors to evaluate the increased capacity of the structural resisting elements using "m" factors. However, ASCE 41-06, the current "bible" for rehab work barley mentions cold formed...
Anybody have information regarding ASCE rail design for crane end truck wheels? I have a crane (50 metric tons), span = 118 feet, bogie end trucks (4 wheels, 20" dia), wheel load is 50 kips. I have an old Whiting Crane Manual that discusses rail design based on a formula:
D x W x...
I have a text book entitled " Design of Structures and Foundations for Vibrating Machines", 1979, by Arya, O'neill and Pincus. Great book....but I am looking for the eratta sheet that shows corrections to the calculations for some of the examples. Anybody have one they can send me as a pdf...
Gentlemen,
Can anyone please advise concerning the design of ring foundations for silos using piles? Looking for reference material and examples. Thanks.
Folks,
I have a text book entitled " Design of Structures and Foundations for Vibrating Machines", 1979, by Arya, O'neill and Pincus. Great book....but I am looking for the eratta sheet that shows corrections to the calculations for some of the examples. Anybody have one they can send me as a...
Gentlemen,
Please comment.
I have a 12 inch thick reinforced concrete slab on grade for a manufacturing plant in South Carolina. The reinforcment is #5@12" c/c each way top and bottom. The 3500 psi mix design is as follows:
cement 537 #
coarse agg (#57) 1046 #
coarse...
Nedd backup data to confirm columns sitting on concrete footing with no base plate. The situation is a Hss 6x3X1/4 column with a 27 kip load. It has no base plate but sites on a thickened slab that sites on a two foot wide footing. Punching shear is not a problem. Only localized crushing may be...
I am doing some analysis for a large mat foundation and have a 12" Terra Cotta sanitary sewer pipe that is buried approximately 32" below the mat. Can anyone provide information about buried pipe design particularly for Terra Cotta and design values. I am going to bridge over the pipe but have...
I have a new home site that will be built on a 45 degree slope from the road above to the lake below. Approximately midway down the slope is the house. There will be two retaining walls...an upper one and then one out at the slope face to provide for a basement floor. It is in a red clay...
