Steel Loading
 |
 Primo Top Load Stainless Steel Water Dispenser Cooler $179.99 Time Remaining: 2d 6h 4m Buy It Now for only: $179.99 |
 Stainless Steel Bottom Loading Bottled hot cold Water Dispenser home office NEW $249.99 Time Remaining: 22d 4h 33m Buy It Now for only: $249.99 |
 Primo Top Load Stainless Steel Water Dispenser and Cooler NIB MSRP 179 $125.00 Time Remaining: 3d 19h 22m Buy It Now for only: $125.00 |
 NEW PAIR OF HEAVY DUTY 500 LB STEEL LOADING RAMPS 6FT ATV TRACTOR CAR $49.99 Time Remaining: 20d 3h 54m Buy It Now for only: $49.99 |
 12 Volt 675 watt dump divert load 4 wind turbine generator in steel box made USA $129.89 Time Remaining: 10d 17h 42m Buy It Now for only: $129.89 |
 Primo Top Load Stainless Steel Hot and Cold Water Dispenser and Cooler $1,168.99 Time Remaining: 16d 20h 10m Buy It Now for only: $1,168.99 |
 pack of 75 White paint finish cup hooks Steel 15 lbs safe working load limit $11.99 Time Remaining: 7d 20h 49m Buy It Now for only: $11.99 |
 24 Volt 540 watt dump divert load for wind turbine generator in steel box USA $129.89 Time Remaining: 10d 8h 2m Buy It Now for only: $129.89 |
 3 BULLDOG HARDWARE Stainless Steel Chain S Hooks 5 16x3 300 lb Load NIP $16.95 Time Remaining: 9d 22h 23m Buy It Now for only: $16.95 |
 Campbell 12 Steel Single Jack Chain 15 Ft Load Limit 29 Lbs 5978000 $12.99 Time Remaining: 8d 11h 44m Buy It Now for only: $12.99 |
 New Aquverse 5H Commercial grade Stainless steel Top load Water Dispenser $272.99 Time Remaining: 4d 12h 55m Buy It Now for only: $272.99 |
 Aquverse 5H Commercial Grade Stainless steel Top load Water Dispensor $280.46 Time Remaining: 8d 23h 46m Buy It Now for only: $280.46 |
 AQUVERSE 5H COMMERCIAL GRADE STAINLESS STEEL TOP LOAD WATER DISPENSER $274.95 Time Remaining: 5d 19h 56m Buy It Now for only: $274.95 |
 AQUVERSE 3H COMMERCIAL GRADE TOP LOAD WATER DISPENSER STAINLESS STEEL TANKS $234.95 Time Remaining: 5d 19h 58m Buy It Now for only: $234.95 |
 DAYTON 40205SH2 RED STEEL PLATFORM TRUCK 2 TIER LOAD CAPACITY 1200 LB 31888 $224.00 Time Remaining: 27d 14h 52m Buy It Now for only: $224.00 |
 Polished Stainless Steel 120 U Channel with Roll In Top Load Gasket $340.84 Time Remaining: 8d 3h 51m Buy It Now for only: $340.84 |
 Brushed Stainless Steel 120 U Channel with Roll In Top Load Gasket $332.16 Time Remaining: 8d 3h 52m Buy It Now for only: $332.16 |
Steel Loading
Precast Steel Column Design for Bridge and Residential Structures
Precast steel columns are effective in cutting down the construction time at the project site because of no need of positioning and curing of concrete to build substructures. Precast column structural details requires careful investigation of the strength and ductility performance and dynamic behavior under various loads and conditions. For a right design approach, detailed study is required of steel joints, pc cables, segments, bar bending, dynamic loads and material availability at the site. Sometimes a series of repeated loading tests and analysis were made to produce seismic guidelines for column design.
Precast column segments efficiently use the mixture of high strength materials like concrete and steel and are fabricated at factory to easily achieve better quality and performance. In this way precast columns enhances the constructionability at project site and curtail the construction time. These segments are piled up at the site to bond them as a column. PC cables are used not for tensioning but to ensure strong joint connections between the column members. After staking all members, longitudinal steel rebars are placed into the segment sheathes to inhibit buckling of the columns.
The precast column segments contain outside concrete housing one or more inner steel shells. Inner steel shells of the members are connected by steel bolts. After piling up all column members perpendicular tensioning is enforced by inner PC cables. Shear keys are provided at the steel joints between segments along with concrete mortar which is placed between the members exterior to concrete. Hence axial forces generated by live and dead loads is supported by inner steel shell but the seismic force is carried by exterior concrete and steel bolts. Steel joints and shear key carry typically carries the shear force applied to the column.
PC cables, steel bolts and shells act as longitudinal steel. The bolts are intended to be firstly conceded when the buckling is going beyond the elastic limit and then the steel shells are not likely to be damaged. It is essential to that the yielded bolts can be easily replaced after seismic disturbances and then the steel columns can be certainly recovered to their primary state.
For any queries related steel column design and detailing drawings email us at info@outsourcingsteeldetailing.com
Visit us at http://www.outsourcingsteeldetailing.com/detailing_services.php for further information.
About the Author
James Lee is a structural steel detailer at OSD – a leading structural steel engineering firm providing quality steel detailing, steel design and structural shop drawings to its offshore clients based in US, UK, Canada and Australia. For further details email us at info@outsourcingsteeldetailing.com
Loading 120 Film Onto Stainless Steel Reels