在建筑施工领域，电梯门套作为连接电梯井道与建筑墙体的关键构件，其防火性能直接关系到建筑整体消防安全。泰安地区工地使用的电梯门套是否具备防火特性，需从材料选择、工艺标准及实际应用三个维度展开分析。

　　In the field of construction, elevator door frames serve as key components connecting elevator shafts and building walls, and their fire resistance directly affects the overall fire safety of the building. Whether the elevator door frames used in construction sites in Tai'an area have fire resistance characteristics needs to be analyzed from three dimensions: material selection, process standards, and practical application.

　　一、防火性能的材料基础

　　1、 Material basis for fire resistance performance

　　电梯门套的防火性能主要由基材与表面处理工艺决定。当前主流材质包括：

　　The fire resistance of elevator door frames is mainly determined by the substrate and surface treatment process. The current mainstream materials include:

　　金属复合材料：以镀锌钢板或铝合金为基材，内部填充岩棉、硅酸铝等A级不燃材料。

　　Metal composite material: based on galvanized steel sheet or aluminum alloy, filled with A-level non combustible materials such as rock wool and aluminum silicate inside.

　　石材复合板：天然花岗岩或大理石与陶瓷薄板复合，耐火极限超2小时。泰安某高层住宅项目应用中，石材门套经消防部门专项检测，火焰蔓延指数为0，烟气毒性达到准安全三级。

　　Stone composite board: natural granite or marble combined with ceramic thin plates, with a fire resistance limit of over 2 hours. In the application of a high-rise residential project in Tai'an, the stone door frame has been specially tested by the fire department, and the flame spread index is 0, with smoke toxicity reaching quasi safety level three.

　　改性塑料：采用阻燃PC/ABS合金，氧指数达32%以上。某工地实验室模拟火灾场景，改性塑料门套在离火自熄，无熔融滴落现象，避免火势纵向蔓延。

　　Modified plastic: Made of flame-retardant PC/ABS alloy, with an oxygen index of over 32%. A construction site laboratory simulated a fire scenario, where the modified plastic door frame automatically extinguished after leaving the fire without melting or dripping, avoiding the longitudinal spread of the fire.

　　二、工艺标准的防火保障

　　2、 Fire protection of process standards

　　密封结构：门套与墙体间隙填充防火密封胶。

　　Sealing structure: Fill the gap between the door frame and the wall with fireproof sealant.

　　防烟设计：门套顶部设置不锈钢挡烟垂壁，与消防联动系统配合，可在火灾确认后自动下垂，形成有效防烟分区。

　　Smoke prevention design: The top of the door frame is equipped with a stainless steel smoke barrier wall, which, in conjunction with the fire linkage system, can automatically sag after a fire is confirmed, forming an effective smoke prevention zone.

　　耐火构造：门套转角处采用L型防火角码连接，经极限载荷测试，在300℃环境下保持连接强度，防止门套脱落形成烟囱效应。

　　Fire resistant construction: The corner of the door frame is connected with an L-shaped fireproof corner code. After ultimate load testing, the connection strength is maintained at 300 ℃ to prevent the door frame from falling off and forming a chimney effect.

　　三、泰安工地的实际应用验证

　　3、 Practical application verification of Tai'an construction site

　　住宅项目案例：泰安某33层住宅楼电梯门套选用2.0mm厚镀锌钢板包覆硅酸钙板，经实体火灾试验，在60分钟耐火试验中，门套背火面平均温升，未引燃周边可燃物。

　　Residential project case: The elevator door frame of a 33 story residential building in Tai'an was covered with 2.0mm thick galvanized steel plate and calcium silicate board. After a physical fire test, the average temperature rise of the back fire surface of the door frame during the 60 minute fire resistance test did not ignite the surrounding combustibles.

　　商业综合体实践：某购物中心采用石材蜂窝复合门套，配合自动喷水灭火系统，在模拟火情中，门套表面温度控制在，为人员疏散争取时间。

　　Commercial complex practice: A shopping center adopts stone honeycomb composite door frames, combined with an automatic sprinkler fire extinguishing system. In simulated fire situations, the surface temperature of the door frames is controlled at to buy time for personnel evacuation.

　　工业厂房应用：某食品加工厂电梯门套选用改性酚醛树脂板，在含油雾环境中，经消防部门专项检测，闪点达，显著降低次生火灾风险。

　　Industrial plant application: The elevator door frame of a certain food processing plant uses modified phenolic resin board. In an oil mist environment, after special testing by the fire department, the flash point reaches, significantly reducing the risk of secondary fires.

　　四、防火性能的认证与维护

　　4、 Certification and maintenance of fire resistance performance

　　型式检验：正规厂家需提供国家防火建筑材料质量监督检验中心出具的检测报告，重点核查燃烧增长速率指数、产烟毒性等关键指标。

　　Type inspection: Legitimate manufacturers are required to provide a testing report issued by the National Fire resistant Building Materials Quality Supervision and Inspection Center, with a focus on verifying key indicators such as combustion growth rate index and smoke toxicity.

　　现场验收：安装完成后需进行门套完整性测试，使用红外热像仪检测缝隙处温升，确保不超规范限值。

　　On site acceptance: After installation, a door frame integrity test is required, and an infrared thermal imager is used to detect the temperature rise at the gap to ensure that it does not exceed the specified limit.

　　维护管理：每半年检查防火密封条弹性，使用测厚仪检测门套基材厚度，腐蚀量超30%时需整体更换。

　　Maintenance management: Check the elasticity of the fireproof sealing strip every six months, use a thickness gauge to measure the thickness of the door frame substrate, and replace it as a whole when the corrosion exceeds 30%.

　　本文由泰安工地电梯门套友情奉献.更多有关的知识请点击:http://www.sddtmt.com我们将会对您提出的疑问进行详细的解答，欢迎您登录网站留言.

　　This article is a friendly contribution from Linyi Elevator Door Frame Installation For more information, please click: http://www.sddtmt.com We will provide detailed answers to your questions. You are welcome to log in to our website and leave a message