This paper discusses the results of thirty-nine in-plane loading tests on single window panels under a horizontal in-plane force applied to the horizontal top member of a steel, pin-connected, or hinged, loading frame. Under this load condition the movement of the glass with respect to the sash as well as the horizontal in-plane deflection, or drift, of the window panel, fastened to this hinged frame, were measured by means of dial gages.

  • Panel size and panel configuration

  • Panel attachment to hinged frame

  • Sash material

  • Clearance between glass and sash

  • Hardness of putty

Thirty-three specimens were tested under static loads. Two tests were performed under repeated reversed loads and four under impact loads.

Some conclusions were derived regarding the ultimate drift of a window panel under the load conditions used and as affected by the variables listed.

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