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Does anyone know where I can find a complete design example (calculations) for a reinforced concrete cantilevered retaining wall? I have 5 feet of earth to retain with the angle of soil behind the wall at 1.3H:1V; soil at 20 kN/m3 and Ka = 0.3. Thank you,

ToadJones, Yes - the beam is 31'-6" long with a 135 degree bend 8' from one end and a factored point load of 5,800 lbs. located 5' from the opposite end of the crank.

Hello, Does anyone know where I can find the design of a cranked steel beam along with some examples? Thank you.

Hello, If a wood member is bolted to the web of a steel beam, and wood joists are fastened to the wood member with hangers on only one side of the beam, what does this do to the moment resistance of the beam? Is the beam considered laterally suppported?

Does anyone have a reference for reinforcing steel beams? I need to know the adequacy of bolting 2 C channels on either side of a W section? The W section is a W200x21. The 2 channels are C130x10 inside C180x15 on either side of web. Bolts are 1/2" diam at 12" o.c. Factored moment is 80 kN m...

Can anyone suggest a method to repair a foundation wall with a horizontal crack, approximately mid way down the wall, about 1/8-1/4" thick? The wall is about 8 feet high in a 30 year old house. I think the owner should excavate the soil around the house, remove and replace the wall, install...

Does anyone have any advice on how to repair existing floor joists? The floor joists are 2x8" over 70 years old in generally good shape except for those under the bathroom floor. The plumber cut 2-3" diameter holes aboout 12" from the end, approximately in the middle of the joist. I'm thinking...

Does anyone know where to find a design manual for calculating the sectional modulus for a soldier pile wall with a raker for a 14 foot high wall, soldiers at 7 feet on centre, raker about 2 feet from the top with a 50 psf surcharge?

Any comments on supporting a steel lintel (maybe a light 4" W section) which supports the 6" masonry block with a 3 1/2" o.d. steel column welded to the lintel (top) and fastened to the existing masonry foundation wall with a 8x6x3/8" steel plate (both sides). Brick veneer to be supported by a 4...

The opening is to be filled with either a window or sliding doors that will contain its own hardware. I could increase the distance to 8".

I'm looking for some advice for a new opening in a cinder block and brick veneer wall. I would like to know how close I can place one side of the opening to the corner of the building. The wall consists of 6" cinder block with a 4" brick veneer. The opening is approximately 128" wide. I'm...

Thank you Mike.

Thank you for the information. From what I understand, option 1. of placing the joists directly on the bottom flange should be rejected and have the contractor either attach a nailer to the web or top flange?

sorry about that - suppose to be for option 2.

Correction: 1. fasten wood member to web, not flange.

Can someone please comment on the following when installing wood joists: 1. placing wood joists on the bottom flange of a steel beam then "packing" the space between the joists with 2x8 or similar or, 2.fastening a wood member to the flange with bolts at 24" o.c. and fastening the joists to the...

Thank you SkiisandBikes, I've tracked down the article at ASCE however the cost is pretty high. I like your suggestion on placement of the insultation. Hopefully the bottom of the footing will be low enough to accomodate the doorway. 4" of insulation should be adequate. I imagine the...

Thank you beton1, Does anyone know of any design criteria for frost protected shallow footings?

Hello StructuralEIT Thank you for the input. I was thinking digging a shallow pit 1 foot out from the foundation and no more than 4 feet wide and 4 feet deep, placing the insulation, then backfilling. This procedure would be repeated for the remainder of the footing effected by the walkout. Any...

Hello concretemasonry, Thank you for the input. Do you have any additional information on the insulation, ie maximum depth, thickness, application etc.? The dwelling is in Toronto, Ontario.