建筑管道支吊架耐火性能试验研究  

Fire resistant test study for building pipe supports and hangers

作　　者：廖曙江 董朋朋 黎小涛 刘义 Liao Shujiang;Dong Pengpeng;Li Xiaotao;Liu Yi(CMCU Engineering Co.,Ltd.,Chongqing 400012,China;China Merchants Group Testing and Certification Co.,Ltd.,Chongqing 401121,China;Chongqing ERAN HVAC Equipment Co.,Ltd.,Chongqing 400015,China;China Coal Technology Chongqing Design Research Institute Co.,Ltd.,Chongqing 400016,China)

机构地区：[1]中机中联工程有限公司,重庆400012 [2]招商局检测认证有限公司,重庆401121 [3]重庆尔安机电设备工程有限公司,重庆400015 [4]中煤科工重庆设计研究院有限公司,重庆400016

出　　处：《消防科学与技术》2023年第11期1512-1517,共6页Fire Science and Technology

基　　金：重庆市建设科技项目(城科字2020第6-5)。

摘　　要：通过对建筑管道支吊架安装方式的调研,对支吊架的典型锚固形式开展常温和火灾状态下的拉拔力对比试验,验证支吊架的不同锚固方式在火灾情况下的耐火稳定性。结果表明,支吊架不同锚固构件在受火状态下的抗拉能力衰减最大可达到80%,其结构稳定性存在薄弱环节,锚固点和吊杆存在耐火稳定性降低乃至丧失的情况,不同锚固构件之间耐火性能也存在较大差异,螺杆式锚栓的耐火稳定性最好,化学锚栓的耐火稳定性最弱,需要在实际工程中采取相应的防火保护措施。Through research on the installation methods of build-ing pipeline supports and hangers,normal and fire-state tensile tests were carried out on typical anchor forms of supports and hangers to verify the fire resistance stability of different anchoring methods.The results show that the tensile strength of different an-chor components of supports and hangers can decrease by up to 80%under fire conditions,and there are weak links in their struc-tural stability.Anchor points and suspension rod may experience reduced or even lost fire resistance stability,and there are signifi-cant differences in fire resistance performance among different an-chor components.Screw-type anchor bolts have the best fire resis-tance stability,while chemical anchor bolts have the weakest fire resistance stability.Corresponding fire prevention measures need to be taken in practical engineering.

关 键 词：支吊架 锚固方式 吊杆 耐火稳定性 

分 类 号：X932[环境科学与工程—安全科学] TU352.5[建筑科学—结构工程]