I am designing a flitch beam consisting of two wood members and a steel plate. One wood member on each side of the plate. The beam is a composite member. I have determined the percentage of load contributing to the plate and wood. How do I calculate the deflection?
Is it correct to use the...
I have a question regarding shear stress parallel to grain of a wood beam, Fv’. My loading condition consists of a wood beam with a continuous beam cantilever over one of the supports (two total) and has a distributed load on it. There are also point loads acting from above the two support...
Looking for recommendations on reference material that could be utilized to design a reinforced concrete mat foundation on piles. The mat would be of a constant thickness.
There does not seem to be a lot of guidance for the design of dry wells in New York State or in general. Two questions I have which I hope someone can give me some guidance for are;
1. It appears regulations require 2-3 feet of separation from the bottom of dry well to a water table or rock...
I am designing a shelf angle to support masonry stones. The angle will be attached to an existing concrete retaining wall. The angle will need to support a tension load of 4,500LBS and a shear load of 1800LBS. What type of bolt is the best to use for this application? When I mean type of...
I am currently working on a design for a wood king post truss. I have never designed a wood truss before. I know how to check the members for the allowable tension and compression forces in the wood members but how do you check the joints. What reference should I use to check the joints? The...
I just wanted some confirmation on how I am interpreting an interaction diagram for a circular spiral concrete column. I figured out my Rn (x axis) and Kn (y axis) for a certain loading criteria and when I went to plot them they where located inside the minimum 1% line. Now I’m assuming this...
I'm not a geotech guy but I have a question about a project I’m involved with about the skin friction of a H-pile in clay. According to the soils report, the soil profile, from existing ground and below, would include approximately 20 feet of sand then 45 feet of clay then 25 feet of sand. The...
I have two questions regarding the location of the vertical steel. The first is where should the vertical steel be located in a house foundation wall for an 8 foot high basement wall with an unbalanced backfill height of 7 feet? The 2nd question is where should the vertical steel be located...
I am involved with a repair for a newly constructed home. The home has a valuated ceiling area and it was determined that a ridge board was utilized with collar ties located in the upper 3rd height. I realize that this should have been constructed with a ridge beam and not a ridge board. The...
I am designing a garage with a 24’x24’ foot print. I would like to use a steel beam to support the 2nd floor with a live load of 40 psf. The steel beam will be located 12 feet from the end of the wall. 2x10 dimension lumber will rest on top of the steel beam spanning in the perpendicular...
I am involved in a design for an H pile which is to support a 90 ton vertical load. The pile will be driven down to rock. The skin friction of the pile has been calculated and has been determined to be relatively small compared to the point bearing capacity. Two methods were used to calculate...
