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(1 清華大學(xué)土木工程系， 北京 100084； 2 百安力鋼結(jié)構(gòu)應(yīng)用科技有限公司， 珠海 519040)

［摘要］城鄉(xiāng)建設(shè)領(lǐng)域的綠色發(fā)展和“十四五規(guī)劃”對(duì)高性能結(jié)構(gòu)材料、結(jié)構(gòu)構(gòu)件及結(jié)構(gòu)體系的低碳、節(jié)能、環(huán)保提出了更高要求。對(duì)高性能結(jié)構(gòu)鋼材（包括高強(qiáng)鋼、耐候鋼、耐火鋼、抗震耐蝕耐火鋼）的基本特征和高溫力學(xué)特性進(jìn)行了分類(lèi)和梳理，對(duì)高性能鋼材基本構(gòu)件及其連接的高溫承載性能研究現(xiàn)狀進(jìn)行了總結(jié)和分析，對(duì)基于高性能鋼材的建筑和橋梁結(jié)構(gòu)體系發(fā)展趨勢(shì)和應(yīng)用前景進(jìn)行了展望，對(duì)基于高性能鋼材的組合結(jié)構(gòu)體系研究提出了相關(guān)建議。 

［關(guān)鍵詞］高性能結(jié)構(gòu)鋼材；耐火鋼；耐候鋼；高溫力學(xué)性能；高溫承載性能；高性能鋼結(jié)構(gòu)體系 

中圖分類(lèi)號(hào)：TU393，TU398 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)17-0145-07

Research and application on high performance structural steel and its structural system 

SHI  Yongjiu1,  YU  Xianglin1,  BAN  Huiyong1,  PANG  Yiukwong 2 

(1 Department of Civil Engineering, Tsinghua University, Beijing 100084， China；2 P&Ls’ Steel Structure Applies Technology Co., Ltd., Zhuhai 519040， China) 

Abstract: Both the green development in construction industry and the 14th Five-Year Plan have higher demands to provide high performance materials, structural members and structural systems with low carbon emission, low energy consumption and eco-friendly properties. The fundamental features and high temperature mechanical properties of high performance structural steel were classified and sorted out, such as high strength steel, weathering steel, fire-resistant steel, seismic-weathering and fire-resistant steel. The current research status of load-bearing behaviors at elevated temperatures for high performance steel basic components and their connections were summarized and analyzed. The development trend and application prospects of high performance steel for building and bridge structural system were prospected. Relevant suggestions were proposed on the research on composite structural system with high performance steel. 

Keywords:high performance structural steel； fire-resistant steel； weathering steel； mechanical property at elevated temperature； load-bearing behavior at elevated temperature； high performance steel structural system

*國(guó)家自然科學(xué)基金項(xiàng)目資助（52078276，51890903）。

 作者簡(jiǎn)介：石永久，博士，教授，博士生導(dǎo)師，Email：shiyj@tsinghua.edu.cn。