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近二十年来,高强砼已逐渐用于高层商住楼建设.在此背景下,对高效减水剂、结构工程设计和加筋砼的研究和使用已取得显著进展.已证实,用高强砼代替普通砼可大大降低钢筋和砼材料的消耗量.例如一根多层钢筋砼柱的钢含量一般是6%.用600号砼取代300号砼时,钢筋节约量是240kg/m~3.多层圆柱的横截面积可降低48%.
Over the past 20 years, Gao Qiang has been gradually used in the construction of high-rise commercial and residential buildings. Under this background, significant progress has been made in the research and use of high-efficiency water-reducing agent, structural engineering design, and reinforced concrete. It has been confirmed that high-strength concrete tools are used. Replacing ordinary concrete can greatly reduce the consumption of steel and concrete materials. For example, the steel content of a multi-layer reinforced concrete column is generally 6%. When using a 600-type material to replace the 300 material, the amount of steel reinforcement is 240kg/m 3 . The cross-sectional area of multi-layered cylinders can be reduced by 48%.