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(中國建筑科學(xué)研究院有限公司， 北京 100013)

［摘要］為研究不同保溫材料砌塊夾心保溫墻的抗火性能，對(duì)兩片砌塊夾心保溫墻試件進(jìn)行了單面受火試驗(yàn)。試驗(yàn)觀察了墻體受火過程中的現(xiàn)象，分析了墻體平面外撓度與受火時(shí)間的關(guān)系；根據(jù)試件的截面溫度場(chǎng)分布，對(duì)比了不同保溫材料墻體的保溫隔熱性能。試驗(yàn)結(jié)果表明：受火60min條件下，保溫材料分別為巖棉和苯板的砌塊夾心保溫墻均能滿足《建筑構(gòu)件耐火試驗(yàn)方法》（GB/T 9978.1—2008）關(guān)于承載力、完整性以及隔熱性的要求。 

［關(guān)鍵詞］砌塊夾心保溫墻；保溫材料；抗火試驗(yàn)；溫度場(chǎng)；受火時(shí)間；跨中撓度 

中圖分類號(hào)：TU317,TU362 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)21-0090-04

Experimental study on fire resistance behavior of block sandwich thermal insulation wall 

WANG  Jianjun,  LI  Lei 

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

Abstract: To investigate the fire resistance behavior of block sandwich thermal insulation wall with different thermal insulation materials, single side fire tests were carried out on two block sandwich thermal insulation wall specimens. The phenomenon of the walls exposured to fire was observed and the relationship between the out-of-plane deflection of the wall and the time of exposure to the fire was analyzed. According to the section temperature field distribution of the specimens, the thermal insulation performance of the wall with different thermal insulation materials was compared. The test results show that the block sandwich thermal insulation walls with rock wool and benzene board as insulation materials can meet the requirements of Fire-resistance test: elements of building construction (GB/T 9978.1—2008) on bearing capacity, integrity and heat insulation under the condition of exposure to fire for 60 minutes. 

Keywords:block sandwich thermal insulation wall； thermal insulation material； fire resistance test； temperature field； time of exposure to the fire； mid-span deflection

*國家重點(diǎn)研發(fā)計(jì)劃子課題(2016YFC0701502-3)。

 作者簡介：王建軍，碩士研究生，Email:919734309@qq.com。