.3 HANDBOOK OF STRUCTURAL STEEL CONNECTION DESIGN - 3TH EDTONAKBAR R. TAMBOLI
1. Scope . 1.1 This guide presents two methods for estimating the atmospheric corrosion resistance of low-alloy weathering steels, such as those described in Specifications A 242/A 242M, A 588/A 588M, A 606 Type 4, A 709/A 709M grades 50W, HPS 70W, and 100W, A 852/A 852M, and A 871/A 871M. Atmospheric Corrosion Resistance of Structural SteelsA bridge paint schedule is a set of treatment types (overcoat, recoat, spot repair) and timings. Age-based or performance-based scheduling decisions for painting steel bridge superstructures are
Weather- ing steel alloys for structural components of bridges are ASTM A709 Grade 50W and 70W. The single corrosion-related requirement for the steel is a material composition requirement. These steels must have an atmospheric corrosion resistance index of 6.0 or higher when calculated in accordance with Method B of ASTM G101-04. GIRDER - Virginia Department of TransportationASTM A709 Grade HPS 50W (except for fracture critical members) and HPS 70W shall not be used without a design waiver. Thus, use of a hybrid girder requires an approved design waiver. Painted or galvanized ASTM A709 Grade 50 shall be used for trusses. Structural pipe and tubing shall be galvanized inside and outside.
9781560511335 1560511338 Guide Specifications for Highway Bridge Fabrication with HPS70W Steel 663405120423 0663405120423 Paint By Number Songs, So Called Artists 5024545226621 Anderida Italy, March 12-14, 1997, Proceedings, Giancarlo Bongiovanni, Daniel P. Bovet, Giuseppe Di Battista 9780965989114 0965989119 Odyssey of the Soul - Light Other - Light FixtureNon-hazardous dust environments and areas subject to water spray, splashing water, or hose down. A fully gasketed housing encloses high output MR16 halogen lamps. Width:14.75" Height:5.75" Depth:4.25" Shipping on multiple items is combined at checkout. If FREE shipping is available. Includes only the 48 contiguous United States.
Ten® B, is most widely used in bridges as ASTM A709 Grade 50W. New high performance steels (HPS) for bridges have predicted improved weathering performance. These grades are available as A709 Grades HPS 50W, HPS 70W and HPS 100W. U. S. Navy steels HSLA-80 and HSLA-100 produced to MIL-S-24645 and the new Weathering steel in architectural applications.be subject to salt spray, salt splashing, On the Road Short-span bridges are ideally suited to weathering steel. Jim Collins of Metals uSa notes that his com-pany stocks W24, W27, W30, W36, W40, and W44 beams. they have supplied steel for bridges in the 150-ft to 200-ft-long range, with girder lengths of 60
ASTM A709, and can be acquired in grades 50W, HPS70W, and HPS100W where these numbers correspond to each grades yield strength in ksi. A new generation of high-performance steel (those grades prefixed with HPS) provides weathering performance with a slightly greater resistance to atmospheric corrosion than its predecessors.