Seismic Performance of RC Members Containing High Volume Coal Ash

回收利用燃煤电厂产生的煤灰是近年来一个非常重要的经济和环境目标。本研究提出将粉煤灰（包括粉煤灰和苹果灰）用于建筑结构的钢筋混凝土构件中，以大量消耗这些产品。下面提到的几个实验研究进行了估计的机械和抗震特性的混凝土和钢筋混凝土构件含有高体积煤灰。试验结果表明，每个试验的所有试样具有相似的性能，无论其高体积煤灰含量。可以预见，大掺量粉煤灰混凝土用于钢筋混凝土建筑结构的可能性很大。对大掺量粉煤灰混凝土的力学性能进行了试验研究，进行了混凝土圆柱体抗压、劈裂试验和足尺混凝土柱抗压加载试验，研究了大掺量粉煤灰混凝土的抗压强度、抗拉强度、杨氏模量、泊松比等力学性能以及尺寸效应的影响.大掺量粉煤灰混凝土的粘结性能试验研究通过将变形钢筋插入混凝土立方体中进行拔出试验，研究了大掺量粉煤灰混凝土的粘结性能.本文对高掺量粉煤灰混凝土梁、柱的抗震性能进行了试验研究。梁承受循环（反向）2点载荷。柱在恒定轴力作用下承受循环剪力.大掺量粉煤灰混凝土柱抗剪性能试验研究设计了在恒定轴力作用下循环剪力作用下的混凝土柱剪切破坏形式。

Recycling the coal ash produced by coal-fired power plants is recently a very significant economic and environmental objective. Utilization of the coal ash, including both fly ash and cider ash, to reinforced concrete members for building structures is proposed in this research, in order to consume the large quantity of these products. Several experimental studies mentioned below were carried out to estimate the mechanical and the seismic characteristics of concrete and RC members containing high volume coal ash. Test results indicated that all specimens of each test had similar performance regardless of their high volume coal ash content. It is anticipated that there is strong possibility of using concrete containing high volume coal ash for RC building structures.1. Experimental study on mechanical properties of concrete containing high volume coal ash.Compression tests and splitting tests using concrete cylinders and compression loading tests using fullscaled concrete columns were carried out to estimate mechanical properties such as compression strength, tensile strength, Young's modulus, Poisson ratio and the influence of size effect.2. Experimental study on bond characteristics of concrete containing high volume coal ash.Series of a pull up test of a deformed steel bar which were inserted into a concrete cube were carried out to estimate bond characteristics.3. Experimental study on seismic performance of RC beams and columns containing high volume coal ash.Test specimens were RC beams and columns, which were both designed flexural failure type. The beams subjected cyclic (reversal) 2 point loadings. The columns subjected cyclic shear force under constant axial force.4. Experimental study on shear characteristics of RC columns containing high volume coal ash.RC columns designed shear failure type subjected cyclic shear force under constant axial force.