Joist Girders
Steel girders balance tension and compressive forces. Girders are structural members that connect the top of columns and usually support the weight of the building above them. They're often deeper and stronger than steel joists. They are designed so that steel joists bearing only at panel points span between girders or beams. While open web steel joist girders can look like a simple truss, their behavior is much more complex.
Disclaimer: Bar joists are an engineered product and can only support their required design load if the “system” is designed and installed properly. The Engineer-of-Record (EOR) is responsible of designing this system that includes but not limited to bridging, supports, connections, anchors and specific design loads. It is the purchasers responsibility to ensure that joists and bridging purchased will be selected, erected and installed properly.
Description
The simplest loading pattern for a truss occurs when all the loads act at the intersection between the web and chord. These intersections are known as panel points. The girders' top and bottom chords are usually parallel to each other. They can be identified by their shape, which is called a warren truss (or Warren truss). With zigzagging webs forming the letter w throughout these trusses can become more complicated when loads do not occur at panel points alone.
A steel girders truss must be designed to withstand both horizontal and vertical forces. The top chords must resist bending due to continuous roof loads, and the bottom chords must support sprinkler pipes and ductwork falling between the panel points. These girders are designed so they can carry extra weight to help transfer these forces into the next panel point.
About O’Donnell Metal Deck:
Since 1996 O’Donnell Metal Deck has been fueled by a high performing team you can count on for what you need, when you need it. The process is seamless from requesting a quote, to placing an order, until final delivery of metal deck and joist to the jobsite.
35+ years and over 15,000 projects later, our experience allows O’Donnell Metal Deck to service any job throughout the USA. Our process reduces the end-to-end logistics costs for delivering quality joist and deck products on time, anywhere in the country, regardless of your project requirements.
Designated by the EOR & engineered to the design of each building we supply a variety of options on our SJI manufactured open web joist girders.
Joist Girder Shop Drawings:
Our ability to provide fast bar joist approvals has made us one of the best joist girder supply and detailing companies in the United States. Our process begins with fast and direct communication with our customers and stakeholders to ensure maximum productivity and timeliness. The bar joist drawing process is as outlined below.
Approval Drawings
Our team gathers, reviews and interprets information from the contract bid documents.
EOR Review
Our steel bar joist layout is submitted to the design team for missing information or discrepancies to solve potential issues.
BOM Fabrication
Once approved by the engineer, our detailers submit their bills of material to be fabricated.
Field Use Plans
We'll issue easy to read steel bar joist erection plans for field use to save installation time.
Learn More about Steel Bar Joist Shop Drawings.
Supplying Steel Joist Girders in the USA
When you need a girder supplier you want to work with the best, someone who can meet and handle all of your needs. When you choose us to provide your joist and deck package we’ll work with you on the specifics of your order. This includes your specific project timeline, jobsite accessibility, material storage, delivery schedule and more. Our knowledge helps customers get things done by avoiding headaches and saving time.
Sloped Joist Seats:
Our in house detailing is capable of detailing and accommodating joists with sloped seats.
Top Chord Extensions:
Typically used to create awnings or support a wide array of structural elements.
Bottom Chord Extensions
Bottom chord extensions for hanging drop ceilings or additional structural elements.
Joist Girder Information
Certifications
SJI Certified Manufacturers:
Every open web steel joist that we supply is manufactured to exact specifications by Steel Joist Institute (SJI) members, which means that you can be assured of the highest quality product.
Made in America:
Our products are made with US made steel. When mill certificates are required, we can provide you the material's physical and chemical properties. Contact Us for more information regarding mill certs for your project.
