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（山東省建筑科學(xué)研究院， 濟南 250031）
［摘要］粘貼纖維復(fù)合材加固法和粘貼鋼板加固法以其施工操作簡單、工期短、加固后對使用空間影響小等優(yōu)點被廣泛應(yīng)用于各類受彎構(gòu)件的加固中。而且對于大偏心受壓構(gòu)件，《混凝土結(jié)構(gòu)加固設(shè)計規(guī)范》（GB 50367—2013）也允許采用粘貼纖維復(fù)合材加固法和粘貼鋼板加固法進(jìn)行加固。然而工程中常用的PKPM、YJK等結(jié)構(gòu)計算分析軟件僅僅給出了混凝土柱的軸壓比，而未給出混凝土柱是屬于大偏心受壓柱還是屬于小偏心受壓柱。如果想采用粘貼纖維復(fù)合材加固法和粘貼鋼板加固法對混凝土柱進(jìn)行加固設(shè)計，就需要設(shè)計人員手工計算各個混凝土柱是否屬于大偏心受壓柱,這樣無疑會增大很多工作量。為此，本文就混凝土柱的軸壓比和大偏心受壓的關(guān)系進(jìn)行了推導(dǎo)，以方便設(shè)計人員在工作中使用。
［關(guān)鍵詞］混凝土柱； 軸壓比； 大偏心受壓； 加固
中圖分類號： TU375.3 文獻(xiàn)標(biāo)識碼： A文章編號： 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
作者簡介：李守才，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，一級注冊建造師，Email：987136802@qq.com。
