建筑构配件组合耐火试验炉电液比例加载方案的设计及实现  

Design and Implementation of Electro-hydraulic Proportional Loading Scheme for Composite Fire Test Furnace of Building Components

作　　者：杨闯 朱全铭 金建平 Yang Chuang;Zhu Quanming;Jin Jianping(Zhejiang Fangyuan Test Group Co.,Ltd.,Hangzhou,China)

机构地区：[1]浙江方圆检测集团股份有限公司,浙江杭州

出　　处：《科学技术创新》2023年第1期75-78,共4页Scientific and Technological Innovation

摘　　要：现代高层建筑对各类构配件的耐火性要求严格,为确保建筑构配件的耐火性能够满足建筑防火设计要求,必须要开展耐火试验。在耐火试验中,电液比例加载系统可以根据试验要求改变加载压力,对建筑构配件施以载荷,从而使建筑构配件的耐火试验结果更加准确。设计了一种适用于组合耐火试验炉的电液比例加载系统,在介绍电液比例加载系统工作原理和硬、软件系统设计要点的基础上,使用Simulink工具箱构建了电液比例加载系统模型并展开了仿真分析,该模型的阶跃响应良好,响应平滑且迅速。最后用试验样机验证电液比例加载系统压力控制功能的实现,结果表明,在1.6 s后系统压力从原来的9600 N降低值设计的8000 N。整个过程中压力稳定下降,没有明显波动,符合设计预期。Modern high-rise buildings have strict fire resistance requirements for all kinds of components.In order to ensure that the fire resistance of building components can meet the requirements of building fire protection design,fire test must be carried out.In the fire resistance test,the electro-hydraulic proportional loading system can change the loading pressure according to the requirements of the test,so as to impose the load on the building components,so as to make the fire resistance test results of the building components more accurate.A kind of electro-hydraulic proportional loading system suitable for composite fire test furnace is designed.On the basis of introducing the working principle of the electro-hydraulic proportional loading system and the design key points of the hardware and software system,a model of the electro-hydraulic proportional loading system is built with Simulink toolbox and the simulation analysis is carried out.The step response of the model is good,the response is smooth and rapid.Finally,a prototype is used to verify the realization of the pressure control function of the electro-hydraulic proportional loading system.The results show that the system pressure decreases from the original 9600 KN to the designed 8000 KN after 1.6 s.During the whole process,the pressure dropped steadily without obvious fluctuation,which was in line with the design expectation.

关 键 词：组合耐火试验炉 电液比例加载系统 SIMULINK 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]