預(yù)制夾芯保溫墻體板縫抗火性能試驗研究*
李志杰1，秦桁2，劉國權(quán)2，薛偉辰1
- 摘 要
-
李志杰1，秦桁2，劉國權(quán)2，薛偉辰1（1 同濟(jì)大學(xué)建筑工程系，上海 200092； 2 北京萬科企業(yè)有限公司，北京 100125）[摘要] 按照國家標(biāo)準(zhǔn)《塑料 燃燒性能的測定 水平法和垂直法》(GB/T 2408-2008)的有關(guān)試驗方法，采用本生燈對預(yù)制夾芯保溫墻體的3種板縫構(gòu)造（無填充材料、填充PE棒泡沫條以及填充巖棉條）的抗火性能進(jìn)行了試驗研究。研究表明：無填充材料的板縫受火30min時（火焰最高溫度957℃），內(nèi)、外葉墻中FRP連接件的最高溫度分別為132℃和97℃，超過了FRP連接件的玻璃化溫度（實測玻璃化溫度93℃），此時擠塑聚苯板（XPS）材料受火劇烈燃燒、熔融，這表明無填充材料的板縫構(gòu)造抗火性能較差，不能滿足抗火安全性要求；在受火60min情況下，火焰最高溫度為970℃左右，對于填充PE棒泡沫條和巖棉條的兩種板縫構(gòu)造而言，其中的FRP連接件均保持完好，填充PE棒泡沫條在內(nèi)、外葉墻中最高溫度分別為78℃和42℃，填充巖棉條的板縫連接件在內(nèi)、外葉墻中最高溫度分別為47℃和36℃，此時兩種板縫的XPS材料無火焰和滴落物產(chǎn)生，可見填充巖棉條或PE棒泡沫條的板縫構(gòu)造具有較好的抗火安全性，可以在工程中推廣應(yīng)用。[關(guān)鍵詞] 預(yù)制夾芯保溫墻；火災(zāi)；抗火性能；FRP連接件；板縫中圖分類號：TU375文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2012)10-0106-04Experimental research on fire-resistance behavior of precast sandwich insulation wall panel jointsLi Zhijie1, Qin Heng2, Liu Guoquan2, Xue Weichen1(1 Department of Building Engineering, Tongji University, Shanghai 200092, China;2 Beijing Vanke Co., Ltd., Beijing 100125, China)Abstract: According to the test methods of the national standard Plastics-Determination of burning characteristics-Horizontal and vertical test (GB/T 2408-2008), experimental research on fire-resistance behavior for three kinds of wall panel joints about the precast sandwich insulation wall panels(including no filler material wall panel joint, filling PE foam wall panel joint and filling rock wool wall panel joint) were done using the Bunsen burner. The results indicate that when no filler material wall panel joint was fired 30 minutes (the maximum flame temperature is 957℃), the highest temperature of FRP connector is 132℃ in internal wall panel and 97℃ in the external wall panel, respectively. It exceeds the glass transition temperature 93℃ of the FRP material. The XPS material burnt strongly and melting at this moment. It proves that fire-resistance behavior of no filler material wall panel joint is poorer, and can not satisfy the requirement of fire safety. After fired 60 minutes, the highest flame temperature is about 970℃. The FRP connectors are remain intact for filling PE foam wall panel joint and filling rock wool wall panel joint. The highest temperature of filling PE foam wall panel joint is 78℃ in the internal wall panel and 42℃ in the external wall panel, respectively. The highest temperature of filling rock wool wall panel joint is 47℃ in the internal wall panel and 36℃ in the external wall panel, respectively. The XPS material for the two kinds of wall panel joints does not produce flame or drop things at this moment. It shows that wall panel joints filled with PE foam or filled with rock wool have good fire-resistance behavior, and are applicable in the practical projects.Keywords: precast sandwich insulation wall panel; fire disaster; fire-resistance behavior; FRP connector; panel joint*國家“十二五”科技支撐計劃項目（2010BAK69B28），上海市科委重大項（10dz0583700,10dz1202200)。通訊作者：薛偉辰，教授，博士生導(dǎo)師，Email:xuewc@#edu.cn。參考文獻(xiàn)［1］歐志華，劉錫軍，王彥.建筑外墻外保溫系統(tǒng)的火災(zāi)特征及防火措施［J］. 建筑科學(xué)，2010,26(11):33-35.［2］ARTURO ALVAREZ JR. Standard fire test method for evaluation of fire propagation characteristics of exterior non-load-bearing wall assemblies containing combustible components［R］.San Antonio, Texas, American: Southwest Research Institute, 2008.［3］BLONTROCK H, TAERWE L, MATTYS S. Properties of fiber reinforced plastics at elevated temperatures with regards to fire resistance of reinforced concrete members［C］//Fourth International Symposium on Non-Metallic (FRP) Reinforcement for Concrete Structures. Baltimore: ACI, 1999:43-54.［4］MOHAMED S. Effect of fire on FRP reinforced concrete members［J］. Composite Structures, 2002, 58(1):11-20.［5］RAJAN SEN, DANIEL MARISCAL, MOHSEN SHAHAWY. Investigation of S-2 glass/epoxy strands in concrete［J］. America Concrete Institute Special Publication, 1993, 138:15-34.［6］GB/T 2408—2008/IEC 60695-11-10：1999塑料 燃燒性能的測定 水平法和垂直法［S］.北京：中國標(biāo)準(zhǔn)出版社，2008.［7］天津市建筑節(jié)能工程泡沫塑料保溫材料施工現(xiàn)場防火安全暫行技術(shù)規(guī)定［S］. 天津，2008.
