| 摘要 |
<p>A pole (10) of a conventional concrete construction is strengthened by fibre composite strips (17, 18) and a reinforced concrete collar (19) at ground level (11). The strips (17, 18) are installed in two lengths . Shorter strips (17) extend from ground level (11) to typically 10 metres above ground for a pole of 20-35 metres height. Longer strips (18) may extend three metres higher. A pole may involve more than one section of similar or dissimilar taper along the length thereof. Between sections of dissimilar taper, a tapered transition zone is provided so that the fibre composite strips follow a taper of no more than 1 in 10 between the adjoining sections. In addition if hollow, the core section of the pole (10) is infilled with concrete from the existing concrete infill to above the top of the collar (19).</p> |
