Download - Unshored Superstructure - Dandina
ABBEY ROAD ENGINEERS
QUAN DAO
RUTHWIK CHEPURI
VISHAL SONI
PAWAN K DANDINA
UNSHORED CONSTRUCTION
PAWAN K DANDINA
SUMMARY Length:
Superstructure = 620’
End Segments: 140’ X 2
Over – Pier Units: 100’ X 2
Drop – in Units: 140’ X 1
Depths:
End Segments: Modified TX 70 (+2” top flange, 10” web, Widened non‐shoring ends)
Drop – in Unit: Modified TX 70 ((+2” top flange, 10” web)
Over – Pier Unit: Modified TX 70 with haunch (max depth = 100”) (+2” top flange, 10” web,
linear: 72” @ 0’ 100”@ 45’‐55’ 72” @ 100’.
Deck = 8” (throughout)
Material Properties:
Girders: 10 ksi.
Deck: 4 ksi.
Pre‐tensioning: 0.6” ϕ – low relaxation steel strands of Fu = 270 ksi.
Post‐tensioning: 7 – wire strand (tendon) with Fu = 270 ksi.
0.6" Φ ‐ low relaxation steel strands
PRE‐TENSION
END UNIT
OVER‐PIER UNIT
DROP‐IN
UNIT
top 4 28 4
bottom 44 18 44
total 48 46 48
7 ‐ WIRE STRAND (TENDON)
POST‐TENSION
END UNIT
OVER‐PIER UNIT
DROP‐IN
UNIT
STAGE 1 38 38 38 (2 ducts)
STAGE 2 19 (1 duct)