（山东省建筑科学研究院， 济南 250031）

［摘要］粘贴纤维复合材加固法和粘贴钢板加固法以其施工操作简单、工期短、加固后对使用空间影响小等优点被广泛应用于各类受弯构件的加固中。而且对于大偏心受压构件，《混凝土结构加固设计规范》（GB 50367—2013）也允许采用粘贴纤维复合材加固法和粘贴钢板加固法进行加固。然而工程中常用的PKPM、YJK等结构计算分析软件仅仅给出了混凝土柱的轴压比，而未给出混凝土柱是属于大偏心受压柱还是属于小偏心受压柱。如果想采用粘贴纤维复合材加固法和粘贴钢板加固法对混凝土柱进行加固设计，就需要设计人员手工计算各个混凝土柱是否属于大偏心受压柱,这样无疑会增大很多工作量。为此，本文就混凝土柱的轴压比和大偏心受压的关系进行了推导，以方便设计人员在工作中使用。 

［关键词］混凝土柱； 轴压比； 大偏心受压； 加固

中图分类号： TU375.3 文献标识码： A文章编号：  1002-848X(2016)S1-0660-02

Relationship between axial compression ratio and large eccentric compression of concrete columns

Li Shoucai， Mei Zuoyun， Liang Meng

( Shandong Provincial Academy of Building, Jinan 250031, China)

Abstract: The reinforcing method of fiber reinforced polymer (FRP) and paste steel plate has the advantages of simple construction, short construction period, and little influence on the use space, and is widely used in the reinforcement of various bending members. And for the large eccentric compression member, Concrete structure reinforcement design code（GB 50367—2013）also allows the use of fiber reinforced polymer and paste steel plate.However, the PKPM, YJK and other structural calculation and analysis software commonly used in engineering are only given the axial compression ratio of concrete columns, It is not given that the concrete column is belong to the large eccentric compression column or belong to the small eccentric compression column. It does not give the concrete column is belong to a large eccentric compression column or belong to a small eccentric compression column. It requires designers to determine whether each concrete column is a large eccentric compression column by hand calculation. If the concrete column is strengthened by the FRP and paste steel plate. As a result, no doubt will increase a lot of work. Therefore, the relationship between axial compression ratio and large eccentric compression of concrete columns is derived, it will be convenient for designers to use in the work.

Keywords: concrete column; axial compression ratio; large eccentric compression; reinforcement