【作者】 陈春雷；

【导师】 周安；

【作者基本信息】 合肥工业大学 ， 结构工程， 2006， 硕士

【摘要】 植筋技术是一种新的钢筋锚固技术，在解决新老混凝土连接、钢筋漏埋错埋等钢筋生根问题中发挥着重要作用，被广泛应用于与结构加固改造中。但植筋锚固与常规的钢筋锚固有很大的不同，至今还没有成熟的相应规范。虽然国内外有大量这方面的试验研究，也获得了丰富的研究成果，但主要集中在静力研究上，对于模拟地震动力的试验研究很少，对其抗震性能知之甚少。 本文对植筋胶的锚固性能进行了深入的理论分析，研究了植筋在拉拔力作用下的破坏性态和破坏机理。通过对一个整浇钢筋混凝土节点和三个具有不同植筋深度的化学植筋节点进行低周反复荷载试验，验证植筋系统用于抗震加固的可行性。 复杂的结构工程课题的有限元计算模型，有时是比较复杂的，往往需要采用不同的单元形式构成一个混合的计算模型。本文采用钢筋等效法来模拟植筋构件以建立起有限元模型，利用ANSYS对其计算分析，对实验结果进行分析比较。更多还原

【Abstract】 Adhesively bonded bars are a new technique of bars anchorage.It has been widely used in rehabilitation, renovationand repairs of concrete structures, as it is easy toanchor steel to concrete. But the bond behavior of adhesively bonded bar is greatly different from that of ordinary bars in concrete.No analysis methods for adhesivily bonded bars are presented in concrete structure code.Although there are plenty of experiment and study about this field,but they are mainly about static study.There is few experiments and study about anti-seismic,so we kown little about the seismic behaviour of chemically planted-bar.In this paper,capacity of bonded bar has been deeply studied in theory and the mechanism and failure mode of adhesively bonded bars in concrete subjected to tension have been invesigated.On the foundation of experiment about one RC joint and three planted-bar joints with different planted depth, point out that it is feasible by using chemically plated bar in aseismatic structure.Sometimes the finite element model of a complicated structure engineering problem is corresponding complicated because many kinds of different elements being used in the model and several kinds of elements composed a mixed analysis model.In the paper,on the basis of the theory that the volume of the steel bars equal to the steel slab,the analysis model is composed. It is soluted with ANSYS and analysed against the conclusion of the experiment.更多还原