Research on Reasonable Selection of Upper and Lower Structure for Large-span Pile-plate Road
This paper compares and analyzes three kinds of upper structure forms of double T-beam section,T-beam section and combined section.From the aspects of mechanical performance,economy and construction convenience,the optimal upper structure form is obtained.Three lower structure schemes are proposed,namely four φ600 mm pier columns,three φ800 mm pier columns,and three φ600 mm pier columns,and their deformation size and mechanical performance are analyzed.The results show that three types of upper structures meet the requirements of the specifications.The double T-beam section and the T-beam section are superior to the combined section in terms of economy and construction convenience,and the double T-beam section has better mechanical performance than T beam section.Three structural forms of the lower part all meet the requirements of bearing capacity,but the φ800 mm pier column structure has the smallest deformation under external force and the larger bearing capacity.
pile-plate roadupper and lower structurestructural selection
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