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（中國(guó)水利電力對(duì)外公司， 北京 100022）

［摘要］以某國(guó)際工程中鋼結(jié)構(gòu)安裝項(xiàng)目為例，對(duì)比分析國(guó)標(biāo)Q235B，Q345 鋼材與美標(biāo)A36，A572.Gr50鋼材在化學(xué)成分、屈服強(qiáng)度、抗拉強(qiáng)度、延伸率及冷彎性能等物理力學(xué)性能方面的差異。以該工程中的單跨簡(jiǎn)支梁為例進(jìn)行受力分析，對(duì)比了中美型鋼受力的差異性。實(shí)踐證明，采用國(guó)標(biāo)的結(jié)構(gòu)鋼構(gòu)件可以替代美標(biāo)結(jié)構(gòu)鋼構(gòu)件，可以節(jié)約項(xiàng)目成本、加快施工進(jìn)度，同時(shí)為我國(guó)鋼結(jié)構(gòu)技術(shù)標(biāo)準(zhǔn)在國(guó)際工程中的應(yīng)用提供重要的參考。

［關(guān)鍵詞］國(guó)際工程； 鋼結(jié)構(gòu)； 國(guó)標(biāo)； 美標(biāo)； 技術(shù)標(biāo)準(zhǔn)

中圖分類號(hào)：TU392-1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)16-0076-03

Research on replacement of structural steels according to Chinese and American technical standards in an international engineering project

Tao Zicheng

(China International Water & Electric Corporation, Beijing 100022, China)

Abstract:Taking the steel structure installation project in an international engineering as an example, differences in physical and mechanical properties for the Q235B and Q345 steel of Chinese standard and A36 and A572.Gr50 steel of American Standard were compared and analyzed in perspectives of chemical composition, yield strength, tensile strength, extension rate and the cold bending property. The mechanical analysis was carried out on a single span simply supported beam in the project for an example to compare the mechanical differences of Chinese and American structural steels. Practice has proved that the structural steel members of Chinese standard can replace standard structural steel members of American standard to save the cost of the project and speed up the construction progress. At the same time, it provides important reference for application of Chinese steel structure technical standards in the international projects.

Keywords:international engineering; steel structure; Chinese standard; American standard; technical standard

作者簡(jiǎn)介：陶自成，碩士，高級(jí)工程師，一級(jí)注冊(cè)建造師，Email:taozc666@163.com。