骨料对超高层建筑巨型柱大体积混凝土抗裂性能影响研究  

RESEARCH ON THE EFFECT OF AGGREGATES ON THE CRACKING RESISTANCE OF MASSIVE CONCRETE WITH GIANT COLUMNS OF SUPER HIGH-RISE BUILDINGS

作　　者：邓杰臻 DENG Jie-zhen(Tianjin International Engineering Branch of China Railway 18th Bureau Group Co.,Ltd.,300000,Tianjin,China)

机构地区：[1]中铁十八局集团有限公司天津国际工程分公司,天津300000

出　　处：《建筑技术》2024年第8期1003-1006,共4页Architecture Technology

摘　　要：骨料在超高层建筑框架结构巨型柱大体积混凝土的抗裂性中起着重要的作用,骨料的粒径大小会影响混凝土的抗裂性能。粒径较大的骨料可以增加混凝土的内聚力和抗裂能力,减少混凝土的收缩和开裂倾向。粒径较小的骨料则可以填充混凝土中的空隙,提高混凝土的致密性和抗裂性能,此外,骨料的形状、强度和含水率等因素都会对超高层建筑框架结构巨型柱大体积混凝土的抗裂性能产生影响。在实际应用中,需要根据具体的工程要求和材料特性选择合适的骨料,并合理控制其配合比和含水率,以提高混凝土的抗裂性能。Aggregates play an important role in the crack resistance of massive concrete with giant columns in super high-rise building frame structures,and the particle size of aggregates can affect the crack resistance performance of concrete.Larger particle size aggregates can increase the cohesion and crack resistance of concrete,reducing its shrinkage and cracking tendency.Smaller particle size aggregates can fill the voids in concrete,improving its compactness and crack resistance.In addition,factors such as the shape,strength,and moisture content of aggregates can affect the crack resistance of massive concrete with giant columns in super high-rise building frame structures.In practical applications,it is necessary to select appropriate aggregates based on specific engineering requirements and material characteristics,and reasonably control their mix proportion and moisture content to improve the crack resistance performance of concrete.

关 键 词：骨料 超高层 巨型柱 抗裂性能 

分 类 号：TU758.1[建筑科学—建筑技术科学]