Abstract：
In beam slab construction of primary and secondary beams of Yuzhou Gymnasium wide-span superhigh frame, the primary beam has large cross-section, wide span and high storey height, so it is determined to adopt single vertical pole row full-scale formwork supporting frame after scheme design, manual calculation, PKPM verification and scheme improvement. Practices have proved that such supporting system is safe, reliable and economic. Considering the massive concrete primary beam, concrete crack is effectively controlled and construction quality is guaranteed through adoption of such measures as mixing with low hydration heat cement, appropriate reduction of water cement ratio, control of temperature difference between concrete inside and outside through temperature measuring wire, curing by timely coverage of heat and moisture insulation materials, secondary finishing, etc.
PAN Qiao,LI Gang-hong,WANG Xing et al. GENERAL BEAM SLAB CONSTRUCTION TECHNIQUE FOR PRIMARY AND SECONDARY BEAMS OF YUZHOU GYMNASIUM WIDE-SPAN SUPERHIGH FRAME[J]. Architecture Technology, 2013, 44(1): 17-20.
