Seismic Performance of RC Members Containing High Volume Coal Ash

对燃煤电厂产生的煤灰进行回收利用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和苹果酒粉煤灰分别用于建筑结构的钢筋混凝土构件中，以大量消耗这些产品。本文进行了以下几项试验研究，以估计含大量粉煤灰的混凝土和钢筋混凝土构件的力学和抗震特性。试验结果表明，无论煤灰含量多高，各试验试样的性能都是相似的。预计在钢筋混凝土建筑结构中使用高含煤灰量混凝土的可能性很大。高掺量粉煤灰混凝土力学性能试验研究。通过混凝土圆柱体的压缩试验和劈裂试验以及混凝土柱的压缩加载试验，评估了混凝土的抗压强度、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。高掺量粉煤灰混凝土粘结特性试验研究。对一根插入混凝土立方体的变形钢筋进行了一系列的拉拔试验，以估计其粘结特性。含大体积粉煤灰混凝土梁柱抗震性能试验研究。试件为钢筋混凝土梁和柱，均设计为受弯破坏类型。梁承受循环（反转）2点荷载。柱在恒轴力作用下承受循环剪切力。含大体积粉煤灰混凝土柱抗剪特性试验研究。设计了钢筋混凝土柱在恒轴力作用下受循环剪切破坏类型。

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.