Corrosion-free precast prestressed concrete piles made with stainless steel reinforcement : construction, test and evaluation.

Details

• Creators:
  Paul, Alvaro ; Kahn, Lawrence F. ; Kurtis, Kimberly
• Corporate Creators:
  Georgia Institute of Technology. School of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • High strength steel
  • Stainless steel
  • Prestressed concrete bridges
  • Piles (Supports)
  • Flexural strength
  • Shear strength
  • Evaluation
  • Precast concrete
  • Reinforcing steel
• Publication/ Report Number:
  FHWA-GA-15-1134
• Resource Type:
  Tech Report
• Geographical Coverage:
  Georgia
• Corporate Publisher:
  Georgia. Department of Transportation. Office of Research
• Abstract:
  The use of duplex high-strength stainless steel (HSSS) grade 2205 prestressing strand and ; austenitic stainless steel (SS) grade 304 spiral wire reinforcement is proposed as a replacement of ; conventional prestressing steel, in order to provide a 100+ year service life for prestressed ; concrete piles located in the Georgia coastal region. The study experimentally investigated 16-in. ; square, 70-ft. long piles constructed using duplex HSSS 2205 strands and SS 304 spiral wire ; reinforcement and compared their behavior with identical piles which were built using the ; conventional strands and spirals. The piles were successfully driven to refusal without visible ; damage, were extracted and tested in flexure and shear. ; Transfer and development length of piles using duplex HSSS 2205 strands were 57% and ; 55%, respectively, of the values predicted by AASHTO LRFD (2013). Transfer length of duplex ; HSSS 2205 strands was not affected by pile driving and extraction. Flexural and shear strength of ; piles using duplex HSSS 2205 strands were greater than predicted by ACI 318-11 and AASHTO ; LRFD (2013) specifications. Experimental prestress losses at 335 days for piles using duplex ; HSSS 2205 strands were 82% of the predicted losses by AASHTO LRFD refined method. ; Prestress losses were not affected by pile driving and extraction. ; It was concluded that duplex HSSS 2205 can be used for prestressing strands in combination ; with austenitic SS 304 for the transverse confinement and shear reinforcement for prestressed ; concrete piles, using the same design requirements and construction procedures used for ; conventional prestressing strand and wire reinforcement
  More +
• Format:
  PDF
• Funding:
  0010820 (RP 11-34)
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28945/dot_28945_DS1.pdf
• File Type:
  [PDF - 13.15 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:5708a51bbd6b665fa148e4d8ec576a7da7279fca49f9215516a49e8a80fe18c3