In the shear wall tables for allowable shear of gypsum sheathed shear walls there are notes that allow for the substitution of either drywall screws or #6 screws for either the 5d or the 6d cooler nails indicated in the table. Is there any published documentation that indicates what an approved...
My firm has just been retained to design a small concrete structure that will need to be capable of withstanding an impact from a small aircraft. Is there any information or possible a simplified method to design the concrete elements without getting into a long drawn out finite element analysis?
I am currently working on a project where water infiltration has significantly deteriorated the outer wythe of a 3 whyte brick masonry bearing wall. The deteriorate is to the point where the outer wythe will need to be removed and replace.
Due to time and cost the contractor does not wish to...
I have a two story moment frame that I am modeling and I do not agree with what the program is using for the Ky factor on the columns. The building has a rigid floor diaphragm and a flexible roof diaphragm and my program defaults are set to choose the K factors is the AISC nomographs.
If I...
I have a building rehabilitation project which consist of an existing skating rink being converted to manufacturing. The existing slab on grade slopes to drains and owner wants to level the floor by pouring an additional 5"+ concrete slab on top of the existing slab on grade.
The literature...
I am currently working on a residential project where the foundation wall is significantly out of plumb. Are there any specified tolerances for residential concrete foundation walls? Thanks in advance.
I am working on determining the cause of a collapse where wind may have been a contributing factor. The climatologically date is given in 5 second gust speeds. Is there a way to mathematically convert this to a 3 second gust speed in order to compare to the ASCE-7, design loads? Thanks in advance.
I am looking at designing a new beam lintel, 14 feet long, supporting 8" CMU with brick veneer. Attached to the veneer will be a fabric canopy cantilevered from the face of the building. If the beam were to be located concentric on the CMU with a plate supporting the brick, as typically seen...
I am investigating the possiblity of installing a second floor to a residence supported by a cinder block foundation. Does anyone have any information on the allowable capacities of cinder block so I can determine if the existing foundation will be structurally adequate to support the addition...
