Hi everyone!
I am reviewing a retrofit project where I found a connection detail I have never seen before, I have serious doubts that this can work.
There is concrete overhang beam which is partially interrupted by a circular HSS column, the beam top bars, which are working at full capacity...
Hi everyone!
I am designing some steel latticed structures for an electrical substation using ASCE 10-15.
I have some pretty dumb doubt. The specification dosen´t show any load combinations and I can't find any resistance factors neither. It does however mention "Desing-factored loads"in 2.2...
Hi all,
I've been asked to design a stone masonry gravity retaining wall (rocks + mortar) 9.6 feet tall.
I know EN 1996 (Eurocode) covers stone masonry, is there any American code for this?
Thanks!
SGR
Hi everyone,
I am working on a timber structure, first time dealing with timber. All my design are based on AWC-NDS 2018. I am dealing with a 3 ply 2"x8" SYP single span pinned beam. Total beam length is 12ft subject to 60 plf wind load. In order to control deflection and strength I need the...
Hi all!, I am designing an industrial platform wich supports a hoist, see attached image. As the columns supoprting de runways are quite long I am concerned with the vibration of the structure. Does anyone have some recomendation or reference of what minimum natural frecuency should the...
Hi all!
I am checking a cold formed purlin to AISI S100-16 specification and I am having some trouble to determine if my situation is covered by the specification. On determinig R-factor, section I6.2.1 refers to "Through -Fastened to Deck or Sheating". The roof panel is an insulted panel...
Hello everyone,
I'm assessing a friend of mine who is an architect who is working on a project of an A-Frame cabin as in the attached picture, he is using some drawings and references form some do it yourself books and asked me to check the designs. I don´t have much experience on wood design...
Hi,
I'm needing some help designing some culverts. I'm designing multiple barrel culverts formed by multiple single barrel culverts set side by side having the joint between them grouted, as in the following link:
http://www.fdot.gov/roadway/DS/12/IDx/00291.pdf
Is having the culvert side by...
Hi, i´m currently designing a stress ribbon footbridge. I’m having some trouble modelling the dynamic behaviour. I´ll first describe what i have done so far and afterwards the problems I am facing right now.
The footbridge isn´t actually a stress ribbon, it consists of two main cables which...
Hi, how should i classify the force-resisting system for a building having steel columns and composite beams (Steel Deck) acting as a moment frame (no braces)? im talking of table 12.2-1 of ASCE/SEI 7-10. I'm trying to keep it as simple as i can so i'll try to use an R=3 system. Should it be...
Hi all,
Im designing a composite steel floor deck slab to the ANSI/SDI C-2011 for the first time. After reading the standard i searched for some design examples and found some from "CMC Joist & Deck" and other from "United Steel Deck". There are some major diferences between them. It seems the...
Hi all,
Im working in south america and i´ll probably be designing a residential low rise, 6 floors, steel buiding for resisting earthquake loads in a few months.
I will be "coached" by a more experienced senior engineering who will be responsible for the project. I have no prior experience in...
Hi everyone,
Im designing my first offshore structure. It is a riser for natural gas and consists of, 40m, vertical and inclined steel piles
(about 48" diameter, 1" thickness) that go up to a 13m x 13m concrete plataform. So it's a small and simple offshore structure.
I have no prior experiece...
