THE BEHAVIOUR OF PRESTRESSED CONCRETE FRAMES WITH AND WITHOUT BINDERS UNDER ULTIMATE LOAD

The paper describes briefly the results of tests on three prestressed concrete portal frames with fixed feet. The first two frames were identical except that one had closely spaced binders at critical sections whilst the other had no binders. The third frame had heavy axial loads; it was similar to Pietrzykowski's frame, but was reinforced with closely spaced binders throughout the length of its members. The author concludes from the test results that checking of rotations cannot be dispensed with, at least in cases of over-reinforced I sections in prestressed members, for which Baker's predictions are on the unsafe side. However, adequate rotations to enable a frame to attain a state of full redistribution of moments may be obtained, irrespective of the fact that the critical sections may be over-reinforced or may be subjected to high axial loads, provided the frame is reinforced with an adequate amount of binders.

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 163-172
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00081418
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Apr 22 1975 12:00AM