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（中國(guó)建筑科學(xué)研究院， 北京 100013）

［摘要］回顧總結(jié)了中國(guó)荷載規(guī)范中活荷載、風(fēng)荷載及雪荷載的形成和演變過程，比較研究了中國(guó)（GB 50009—2012）、美國(guó)（ASCE 7）和歐洲（EN 1991\|1\|1）荷載規(guī)范的取值標(biāo)準(zhǔn)，表明我國(guó)荷載規(guī)范的取值水準(zhǔn)與國(guó)外先進(jìn)國(guó)家標(biāo)準(zhǔn)基本相當(dāng)，我國(guó)荷載規(guī)范中人員可能聚集的公共建筑活荷載取值偏低，且缺少對(duì)樓面集中力活荷載校核的規(guī)定。建議部分公共建筑類樓面活荷載增加0-5kN/m2，補(bǔ)充部分樓面集中力活荷載，將風(fēng)荷載及雪荷載的平均重現(xiàn)期由50年提高到100年，以提升我國(guó)的荷載水準(zhǔn)，并與國(guó)際標(biāo)準(zhǔn)接軌。

［關(guān)鍵詞］建筑結(jié)構(gòu)； 活荷載； 標(biāo)準(zhǔn)值； 雪荷載； 風(fēng)荷載； 平均重現(xiàn)期

中圖分類號(hào)：TU312文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)07-0001-04

Comparing on load level for building structures and recommendations for revision of Chinese load code

Jin Xinyang

(China Academy of Building Research, Beijing 100013, China)

Abstract:The development and update of live load, snow load and wind load in Chinese Load code for design of building structures are reviewed briefly. Characteristic values of live load and mean return period of basic snow and wind load from China (GB 50009—2012),USA (ASCE 7) and Europe (EN 1991\|1\|1) were compared and studied. It is indicated that values of variable load in Chinese load code is located in the comparative level with USA and Eurocode. Some live loads for public used buildings where people may assembly are lower, and there is no provision for concentrated live loads in Chinese load code. To raise the level of load values and to approach international advanced code, it is recommended that live load for public used areas shall be increased about 0-5kN/m2, concentrated live load shall be added for some floors, and the mean return period for basic snow and wind load shall be changed from 50 years to 100 years.

Keywords:building structure; live load; characteristic value; snow load; wind load;mean return period

作者簡(jiǎn)介：金新陽，研究員，博士研究生導(dǎo)師，Email:jinxinyang@cabrtech.com。