Author: Tan, K H;Kong, F K;Weng, L W
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Tan, K H;Kong, F K;Weng, L W
The Structural Engineer, Volume 75, Issue 11, 1997
When designing continuous concrete bridges incorporating precast, pretensioned beams, problems of interpretation of design requirements arise at the continuous supports when considering the serviceability limit state. These problems are associated with the tension induced in the tops of the precast beams at their ends as a result of hogging bending and with the tension induced at the bottom of the in situ concrete crosshead as a result of long-term sagging bending in the absence of live load. These problems are discussed and design proposals made. Professor L.A. Clark and I. Sugie
Within a land area of about 11OOkm², the population of Hong Kong has increased to more than 6M. Land is scarce and land prices are high; consequentially the vast majority of the population is accommodated in multistorey buildings. Most of these were completed at high speed under the pressure of strong demand and subsequently exposed to severe atmospheric attack. The problems of these buildings can be discussed under separate headings, i.e. public housing, constructed by Government funds, and those provided by the private sector. J.K.W. Chan and D.A. Morris