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    Participant
      July 26, 2007 at 12:12 pm #2884

      In stressing a double live- end anchorage where the other end is a pan box type. What is the stressing sequence inorder to achieve optimum elongation?

      John Mark B.
      Participant
      Posts: 25
        July 26, 2007 at 12:46 pm #3134
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        Basing from experience, the best way to stress a double live-end anchoragewhere the other side is a pan box anchorage is to do initial stressing at the pan box end, then on final stressing stage complete 100% stressing at the edge slab end.Then do the “pick-up” at the pan box end.This process may minimize the friction losses at the pan box end.

        Administrator
        Keymaster
        Posts: 66
          July 28, 2007 at 11:23 am #3136
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          I call it box-out, but we are on the same page

          [img:width=339&height=255]../../e107_files/public/1185620277_1_FT16_dscf0031.jpg[/img]

          I agree with your sequence of stressing- at box initial-final-pick-up at box

          Stressing from box-out we use bending device looks like two or three pcs connected together providing necessary angle

          [img:width=339&height=255]../../e107_files/public/1185620478_1_FT16_top.jpg[/img]

          this small device create huge friction just infront of the jack, area between the arrows on my sketch

          [img:width=390&height=272]../../e107_files/public/1185620822_1_FT16_pts-13.jpg[/img]

          and ofcourse this affects stressing.

          Thank you

          AnonymousPosts: 49
            July 30, 2007 at 1:26 pm #3141

            And What Friction!
            Hope the designers leaves you withs some capacity to overcome it ;-)

            DSSM
            Participant
            Posts: 15
              August 13, 2007 at 4:42 am #3145

              Thank you guys for the effort of answering my question.
              A very nice visual presentation Ivo.
              This gives a clearer understanding regarding stressing sequences, leading to a better quality wokmanship.