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Most of the project I do satisfies the requirement for part 2 (Enclosed simple diaphragm low-rise buildings). I am trying to understand part 1 (enclosed and partially enclosed low-rise buildings) of ASCE 7-16 chapter 28 and have some confusion. I would appreciate any insights on this matter. 1...

Hi All, How do we generate a load combination from the LC Generator that includes WLY in RISA 3D? We can define the WLY as a basic load case category but I cannot find any load combinator generator settings to bring the WLY as a part of load combination. I can do it for the WLX and WLZ but not...

Hi, I am designing a small spire on top of a building in Guatemala. I am unfamiliar with the La Asociación Guatemalteca de Ingeniería Estructural y Sísmica (AGIES) code. I have the design criteria for the building but I am not familiar with the language (Maybe it's in Spanish). Does anyone have...

Thank you, Guys! SlideRuleEra: The link is loaded with much information I could use. dik: I will double-check with my team if we need to increase the load to 100 psf. Thank you.

Hi Community, I am working on a project designing the structural support system for an auditorium. The project involves steel structures to support the seating for gravity and lateral loads. So far, I have determined to use a Dead Load (20psf + concrete weight),and Live Load (60 psf). I think...

phamENG: I am using the document that you referenced " Barrier Design Guidance for HUD Assisted Projects Near Hazardous Facilities" as well. However, most of the documents (including the drawing provided by the client) that I am referring states to design the blast wall for 0.5 psi and 450...

Thank you, everyone, for your responses. (I love this community!) To add to the topic, this is for a housing project. Typically they would not require a blast wall. However, they need a blast wall because this is HUD-funded housing. The wall is trying to provide cover from a gas pipe blast in...

I am working on a Department of Housing and Urban Development (HUD)project where I need to design a 6 ft high concrete masonry unit (CMU) blast walls. The requirement of the blast wall (and its material) is as follows, "Thermal heat flux exposure threshold of 450 BTU/hr/ft2 for people in open...

Thank you for the responses everyone. Thank you.

Hi All, I am learning to work with Masonry and am looking for good resources to keep going. I am looking to buy a good Masonry book to have it handy and also use it for my paper based SE preparation and exams. I have a couple of pdf books that I use. However, I would love to know if you guys...

Hi All, I am analyzing a metal decking over OWSJ for higher wind uplift. The decks are attached to the supporting OWSJ with 5/8" puddle weld. In the past, I looked at few reports I found online and used the lowest capacity and they worked for my project. However, now I am working on a project...

@structSU10: Thank you. @ProgrammingPE : That is what I think too. Never thought a availability of a single line space would impact the code presentation.Thank you. Thank you.

Has anyone noticed the wind adjustment factor for 25 ft is not present in the Component and Cladding but is present in Main Wind Force Resisting System? Not a big difference but I wanted to share this information and ask if you think there is a deeper logic behind it? or may be as simple as the...

Thank you all for your feedback. This is gold for me as I am trying to learn about the common construction practices. @DayRooster: I am looking to add L-angle/ C channel/ Wide Flange depending on the capacity I need. I would like to avoid using tubes as I could not directly anchor the tubes into...

Hi All, I am working on a project where an existing building is being modified. The mezzanine is being removed. This causes larger span of the 12" CMU(likely unreinforced) wall (for out of plane) and also puts the higher force on the upper roof diaphragm. For strengthening the CMU wall for...

Hi dauwerda and JoshPlumSE, The reason I wanted to have all the three models in the same workspace is because I have to modify the members (upsize/downsize) many times and I need to check if the individual as well as the entire structure will pass the code limitations. I am using section sets...

Hi JoshPlumSE I tried the Modify Member tool and selected "Member is NOT Active" option. However I did not get my desired output. My apologies for not explaining my problem properly in the main post. My goal is to get the total force on the sub-sections due to area loads(wind X). I need the...

Hi, I am running into a problem while using RISA 3D 17.0. I would really appreciate your suggestions. I have a cupola that is shipped in site in multiple parts (three) and are attached in the site with bolts. I have modeled all the parts in the same workspace. I want to solve only one part at...

Hi, I need to design a base plate for attachment of a 2700# equipment to a concrete slab. I also have the operating loads(force and moment) which is greater than the lateral seismic force as it is a SDC B. I wanted to know how we can proceed with the design and have the questions as below: 1...

phamENG: Thank you for the detail reply. It clears up many of my confusions. Thank you, Ruchin Khadka