A single span 50m long prestressed road bridge has been fabricated under a Public Works Department contract in the State of Negeri Sembilan, Malaysia. The bridge, across a river, was constructed at the small village of Kampung Linsum, Sungai Linggi. To date, this bridge is the first in Malaysia and may also be the world's longest composite road bridge made from ultra-high performance ductile concrete (UHPdC). This paper presents the features of the UHPdC precast girder; gives a brief insight into the manufacturing process of the girder; highlights the bridge's construction sequence; illustrates the design method and provides an environmental impact calculation. The midspan deflections of the bridge at different times in its construction history were compared against the collected field data and these figures showed that the calculated values were in general in agreement with the field data. Yen Lei Voo, BE, PhD Dura Technology Sdn Bhd Patrick C. Augustin, FIEM, PEng, FICE, CEng, FIStructE Perunding FAISAL, ABRAHAM dan AUGUSTIN Sdn Bhd Consultants to Dura Technology Sdn Bhd Thomas A. J. Thamboe, ANS, PMC, PJK, MIEM Endeavour Consult Sdn Bhd for Public Works Department, Negeri Sembilan, Malaysia
Dr Chris White, Portfolio Manager Built Environment, outlines EPSRC’s strategy for funding research and explains new schemes related to structural engineering
The introduction of the Eurocodes has generated a number of guides and advice notes. However, most concentrate on the materials sections of the code. BS EN 1990 (Basis of structural design) has not received as much attention and yet is a vital element of the suite. This paper concentrates on the reliability aspects which underpin the Eurocodes. It attempts to set them into a practical project-based context, comments on the wider issues of responsibility, and suggests interpretations where it is considered that the code is unclear. The paper does not consider specialist structures such as dams and nuclear facilities or structures which may be outside the scope of the code. It is illustrated that engineering judgment is required in order to use the code competently. John Carpenter, CEng, FICE, FIStructE, CFIOSH Consultant