ASSESSMENT OF RESIDUAL LIFE OF GIRDERS OF BRIDGE No

a) The type I girders require replacement of top flange plate, all gussets and
corroded bracings along with provision of centralized bearings and
stiffening plates before use. All girders are require to be painted.
b) The type II girders require replacement of corroded gussets and rivets
and need based replacement of top flange at critical locations and
provision of centralized bearings and stiffening plates before use. All
girders are require to be painted.
3.6 The girders require the following prerequisites before the same can be
released for use elsewhere.
a) There is a water pipe line on bridge No. 75 provided on bracing between
girders of UP line and DN line for the inhabitants of the island between
bridges No. 73 and 75.
b) There is an H.T. electric line on bridge No. 75 provide bracing between
girders of UP line and DN line for the inhabitants of the island between
bridges No. 73 and 75.
c) The girders have lived part of the useful life in the period between 1927
and 1993 and the balance fatigue life is to be assessed for the section
where the girders are to be used.
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