We use 16 psf minimum in member design and apply load combinations. However, when we run lateral analysis we use Excel spreadsheets that were written based on ASD procedures. Perhaps I can convert our spreadsheet to LRFD and then apply the load combination to the resultant forces. This would...
Guys,
I have met the the plans examiner on this item. I have attempted to explain the use of load factors. He understands them very well. He is just saying that the code specifies a minimum value of 16 psf and that he needs something in writing from IBC or ACSE... I have had this issue with...
The plans examiners understand the difference between ASD and LFRD. They are "hanging their hat" on the fact that the codes do not specifically list the minimum wind pressures as LFRD in the sections cited above. They would like to have an IBC or ASCE sourced document that clarifies the...
Hello,
I am located in Las Vegas. Non-air entrained concrete is typically used here. There are freeze -thaw issues with concrete "north of Vegas" - particularly in St. George.
That being said, most of Clark County has sulfates in the soil and there is significant sulfate damage to concrete...
Hello,
Both ASCE 7-10 (28.4.4) and IBC 2012 (1609.6.3) list minimum wind pressures at 16 psf for walls. ASCE 7-10 also lists 8 psf minimum for vertical projections of roofs.
The minimum wind load comes into play on single story structures particularly in exposure B. There has been much...
The picture posted shows white deposits on the joists- probably calcium carbonate from water intrusion. There is OSB sheathing on top and what appears to be the remnants of a stucco covered gypsum board soffit.
The moisture barrier on top of the deck could have failed quite a while ago...
Iv'e been asked to design a curved glass stair system that is completely constructed of glass much like those stairs seen in the Apple stores. What FEA program is best suited to modeling curved and flat glass plates that will be joined together with spyders and routels...
Building Worx 2011 from Structural Soft is possibly the most user user friendly engineering software out there for complete building analysis.
The pdf tutorials are full of screen shots that really speed up the learning process. The technical support is fantastic! They offer webinars every...
Self leveling gypsum floor underlayments are generally pumped into the building thru a 1" hose. Fibers could not be used in this product as they would clog the hose.
However, the manufacturers do provide an optional metal lath product in sheets that can be installed on the sheathing prior to...
I'm the original author of the thread. I contacted APA and they do have a document available that offers guidelines on the issue. It is titled "Assessing Water Damage after a Flood" X-501 on www.apawood.org. This document discusses various assessment and repair methods for sheathing that has...
Replacing the floor sheathing on this project will require the structure to be torn down. The OSB sheathing is glued and nailed.
What is an alternate repair solution? Are there test methods established by APA? Using a six month time period for exposure may not be applicable in all locations...
I have a multifamily housing project that was stalled for more than a year due to financing while in the wood framing stage. The OSB floor systems show signs of weathering due to rain intrusion. TJI joists are spaced at max 24" o.c and 23/32 OSB SturdiFloor (24" floor span rating) sheathing...
