| 摘要 |
A modular expansion seal for use in roadways, bridges, and the like adapted for use with a pair of elongated, parallel, spaced-apart retaining members defining a gap therebetween and each of the retaining members having a generally C-shaped cavity opening towards said gap. The seal includes end walls for mounting within the aforesaid retaining member cavities and top and bottom walls extending between the end walls for spanning the aforesaid gap. Each end wall includes an outer surface configuration generally adapted for matching engagement with said cavity. However, the radius of curvature of the end wall in an unstressed, disassembled condition is less than the radius of curvature of the cavity so that upon assembly of the end wall within the cavity the outer curved wall position is forced to assume the curvature of the cavity resulting in a highly effective mounting of the end wall therein. In addition, support members extend between the midportion of each end wall and the top and bottom walls adjacent to the respective retaining member for enhancing the retention or mounting of each end wall therein.
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