I see a few disscussions regarding Tiltup and precast panel to panel connection here in previous threads. But still want to nail down with experience and suggestions from people on this group.
It looks most people prefer designing the panels independently (for overturning/Inplane shear) and say...
Hello engineers,
I am in a process of designing a facility for Boat slip. It is to be covered and need spaces for 20 boats. The site is a lake near Dallas, TX.
We are asked that it is to be of floating type.
Any reference materials,books,design guides, tips and thum rules will be grealty...
Hello
Subject: Slab on grade construction on community cetner structure in TX (hot climate).
Here my concern is the interface detail between inside and outside slab.This structure is raised 3' above the grade level and the outside cover patio area (roof but no wall enclosure)is all around the...
Hello,
My question is on design of railing systems with stainless steel.
What would be the yield strength (fy) of stainless steel alloy 304, in practice. Railing Supllier says they have been using 50 -60 ksi and has material testing report to verify. It seems quite a high compared to 25-30 ksi...
Hello,
My question is on design of railing systems with stainless steel.
What would be the yield strength (fy) of stainless steel alloy 304, in practice. Railing Supllier says they have been using 50 -60 ksi and has material testing report to verify. It seems quite a high compared to 25-30 ksi...
Adding braces to retrofit 5- story RCC structure in SDC-D.Planning to add braces in between existing concrete columns. Now adding only digonal steel member as braces and using exist concrete columns as vertical members and exist slab as beam members. Can this system be considered as STeel...
Use of Amplified load combination in SDC -B.
I could not find any section on ASCE 7 that requires the use of amplified load combination(includes omega factor).Could anyone confirm whethere it applies or not for SDC-B. It says SDC C and above per section 12.10.2.1 for collector elements. My...
Hello All,
I have a question related to anchor bolt/ Pedestal design. This project is in seismic design category D, where we can't reduce development length base on excess reinforcement per ACI.This giving tall pedestal, we are looking options to get reasonable pedestal ht.
1)To reduce the...
Tx prestressed Girder.
Contractor wants to replace the Top T-bars (4)- #4 bars on Tx40 girder with 1/2' diameter strands. Saying it helps on their production process. I did not see related Tx dot Documents to permit the replacement option.
Any Bridge Engineering has similar experiences? what...
My question is about strengthening a W section steel beam with adding another W section on bottom flange. Adding cover plate or WT options are not sufficient because of large moment requirement .
I am planning to connect the flanges with weld, I can fillet weld the two flanges. Now my concern is...
Bridge design using prestressed girder with concrete deck slab and pile foundation.
1)I don't find details for diaphragm.I assume they need diaphragm at the supports at least as the bridge manual says no intermediate diaphragm required. I will appreciate if any person with experience on Txdot...
Hello,
I am designing a monorail beam that is supported by roof beams. As usual, the monorail is attached to the bottom flange of the roof beams and trolley runs on the bottom flange of monorail.
Here top flange is braced at supported points but the bottom flange is not braced. But due to...
Hello All,
Question related to interface detail between steel column and light gauge roof truss.
We have used steel framing (Header and Jamb) at large window opening area, where as the basic system is light gauge stud wall and truss at roof. Now the question is how we connect the steel jamb...
Hello ,
I am searching for information about Swaged connection . Don't know any references documents: what is it, how to calculte the capaicity of such connection etc...
Any help is greatly appreciated.
Thanks.
Hello,
I am considering to design a trellis/louver framing wall system using aluminum plates (rectangular bars). Each pannel to be approx 10 ft horizonatal by 15 ft vertical, supported on four conrners on wall. Here 10 ft horizontal louvers are spaced approx 3" vertically and welded to...
Hello,
I looking for parapet detail in stud wall building.Parapet is about 3 ft tall above roof ,I am thinking of cantilevering channels at 4 ft spacing and infilling metal studs at 16 in o.c. Now I am wondering how the torsion (moment from channel) to the wall be taken into design of wall.
The...
Hello All,
The location and design of expansion /control joints in brick veneer:
How in practice the spacing/location of expansion joint is handled.I don't see in Architectural specs about this and also no drawings are prepared.I assume it must be the subject of coordination/negotiation between...
Hello
we are using Light gage truss for roof and light gage studs for wall/shear wall on a single story building . To make a lateral load path from Roof to shear wall I need blocking members between trusses where truss sits perpendicular to the stud shear wall.
As the trusses are more than 2ft...
Hello All,
We are designing a Canopy using Cold Formed Steel.As we want to create a long span,as a general experience how long CFS members can span? I found 16" member as deepest size studs and planning to make a box section by attaching two members toe to toe and spanning about 30 ft unbraced...
Hello,
I am new for Cold formed steel design field.From previous posts on similar topics in this forum, I find lots of good information.Still have few questions and would appreciate any help:
-the project I am talking about is one story building with CFS framing: what will be the best selection...
