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重庆电厂扩建工程240m 钢筋混凝土烟囱底部外径23.21m,筒首外径6.96m(内径6m),底部壁厚700mm,196m 标高处壁厚为200mm;筒壁均为双层配筋,混凝土为普通水泥,中砂,卵碎石配制300号、250号、200号三种,滑模混凝土量达3532m~3。烟囱滑模施工正值高温季节,高空作业区气温最高可达44℃,滑模混凝土易产生塑性裂纹和干缩裂缝,随着滑升筒体不断提高,日照还会引起简体中心偏移。日照简体方位
Chongqing Power Plant expansion project 240m reinforced concrete chimney base diameter 23.21m, tube outer diameter 6.96m (inner diameter 6m), bottom wall thickness 700mm, 196m elevation wall thickness 200mm; cylinder walls are double reinforced, concrete is normal Cement, medium sand, and crushed groats were prepared in No. 300, No. 250 and No. 200, and the amount of slip-form concrete reached 3,532 m~3. Chimney sliding form construction is in high temperature season, and the maximum temperature in high-altitude work area is up to 44°C. Slip-form concrete tends to produce plastic cracks and dry shrinkage cracks. With the rise of sliding cylinders, sunlight can also cause the Simplified Center to shift. Sunshine Simplified Directions