祖琨奥

摘 要：随着人类对地震危害性的认识加深，建筑在设计时会根据多方面分析进行抗震等级设计。尤其是地震频发区，抗震等级将会更高，其中需要使用到的钢筋混凝土强度将会更加优异。在考虑钢筋混凝土强度的同时，其中结构粘结性能也不能忽视，如若粘结性能较差，即使具备很好的强度，当受到地震荷载的影响之后，钢筋混凝土一样容易出现破坏。所以文章以3种不同类型高强钢筋混凝土结构作为实验对象，分析其中的粘结性能。这3种高强钢筋混凝土分别为光圆钢筋混凝土、异形钢筋混凝土和螺旋肋钢筋混凝土。通过实验研究的方式能够定量分析这3种钢筋混凝土结构的粘结性能。实验结果表明，在相同条件之下，螺旋肋钢筋混凝土的粘结性能优于异形钢筋混凝土优于光圆钢筋混凝土，所以在罕遇地震下使用高强螺旋肋钢筋混凝土将会具有更好的抗震效果。

关键词：地震;高强钢筋混凝土;粘结性能

中图分类号：TU375; TU352.11           文献标识码：A                 文章编号：1001-5922（2021）04-0102-04

Abstract：With the deepening of human understanding of the hazards of earthquakes， buildings will be designed for earthquake resistance based on multi-faceted analysis. Especially in earthquake-prone areas， the earthquake resistance level will be higher， and the strength of reinforced concrete that needs to be used will be even better. While considering the strength of reinforced concrete， the structural bonding performance cannot be ignored. If the bonding performance is poor， even with good strength， reinforced concrete is equally prone to damage after being affected by earthquake loads. Therefore， the paper takes three different types of high-strength reinforced concrete structures as experimental objects to analyze the bonding properties among them. The three types of high-strength reinforced concrete are round reinforced concrete， special-shaped reinforced concrete and spiral ribbed reinforced concrete. Through experimental research， the bonding performance of these three reinforced concrete structures can be quantitatively analyzed. The experimental results show that under the same conditions， the bonding performance of spiral ribbed reinforced concrete is better than that of special-shaped reinforced concrete than plain reinforced concrete. Therefore， the use of high-strength spiral ribbed reinforced concrete under rare earthquakes will have better seismic effects .

Key words：earthquake; high-strength reinforced concrete; bond performance

鋼筋混凝土结构建成之后，会受到各种因素的影响，使得钢筋混凝土之间的粘结性能降低，尤其是遇到罕见地震之后，性能比较弱的钢筋混凝土建筑将会直接被催倒，导致严重的人员伤亡和经济损失，所以后来我国提出了建筑的抗震要求，所使用的钢筋混凝土结构要能够满足当地的抗震指数[1-2]。对于某些地震频发的地域，需要使用到高强度的钢筋混凝土结构才可能避免出现粘结疲劳破坏[3]。……