The Structural Engineer > Archive > Volume 15 (1937) > Issues > Issue 10 > Some Portal Frame Bridges in Oxfordshire. Discussion on Mr. J.J. Leeming's Paper
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Some Portal Frame Bridges in Oxfordshire. Discussion on Mr. J.J. Leeming's Paper

Mr. LEEMING, in presenting the paper, said that with regard to fixed-ended and free-ended conditions he was expressing only his own personal opinion. He wished it to be clearly understood that he did not mean to make any actual comparison; he preferred fixed ends, as compared with free ends, where no proper hinge was provided. In the case of certain bridges built by Hayden, in America, it appeared very doubtful that complete freedom had been achieved; if freedom were not achieved there was liability to some unintended stresses occurring in the leg of the frame and also near the points of fixation, which stresses had not been allowed for. That did not appear to be very good practice.