JGN型耐高温建筑结构胶抗震加固性能研究  

Seismic strengthening performance of JGN-type building structural adhesive with high temperature resistance

作　　者：程希莹 于敏 杨瑞敏 张伟 韩意 CHENG Xiying;YU Min;YANG Ruimin;ZHANG Wei;HAN Yi(College of Architecture,Anhui Science and Technology University,Bengbu 233100,Anhui,China)

机构地区：[1]安徽科技学院建筑学院,安徽蚌埠233100

出　　处：《地震工程学报》2022年第5期1059-1066,共8页China Earthquake Engineering Journal

基　　金：安徽省教育厅高校自然科学重点研究项目(KJ2021A0862);安徽省凤阳县“十四五”消防救援事业发展规划项目(880672);安徽省蚌埠市胜利东路片区工业工地测量及数据建库项目(880635)。

摘　　要：为有效增强建筑结构的抗震性能、提高建筑抗震水平,对JGN型耐高温建筑结构胶抗震加固性能展开研究。将高活性酚醛胺(T-31)作为主固化剂、聚酰胺树脂(PA)为辅助固化剂,结合气相白炭黑、超细石英砂、石棉纤维、纳米材料、环氧树脂等材料,制备JGN型耐高温建筑结构胶。在高温环境下,使用万能试验机分析不同配比条件对结构胶抗震加固性能的影响。测试主要以拉伸强度、压缩强度以及压缩弹性模量为指标。测试结果表明:当固化剂质量比为45∶15、气相白炭黑掺量为4.5%、超细石英砂掺量为10%、石棉纤维掺量为10.5%、纳米SiO_(2)掺量为3.5%、纳米CaCO_(3)掺量为2.5%时,JGN型耐高温建筑结构胶的拉伸强度和压缩强度更大,压缩弹性模量得到优化,结构胶的抗震加固性能达到最佳状态。To effectively enhance the seismic performance and seismic levels of building structures,the seismic reinforcement performance of JGN-type building structural adhesive with high temperature resistance was studied in this paper.A JGN-type building structural adhesive with high temperature resistance was prepared by using highly active phenolic amine(T-31)as the main curing agent and polyamide resin as the auxiliary curing agent,combined with gas phase silica black,ultrafine quartz sand,asbestos fiber,nanomaterial,and epoxy resin.The effect of different proportions on the seismic performance of JGN-type structural adhesive under high temperature environment was analyzed by using a universal testing machine.The tensile strength,compressive strength,and compressive elastic modulus were taken as the tested indexes.Test results show the following:When the mass ratio of the curing agent is 45:15,the content of fumed silica is 4.5%,ultrafine quartz sand is 10%,asbestos fiber is 10.5%,nano-SiO_(2) is 3.5%,nano-CaCO_(3) is 2.5%,the tensile strength and compressive strength of JGN-type high temperature-resistant building structural adhesive will be higher,and the compressive elastic modulus can be optimized.With this proportion,the best seismic strengthening performance of the structural adhesive is achieved.

关 键 词：JGN型 耐高温 建筑结构胶 抗震加固性能 万能试验机 

分 类 号：TU436.2[建筑科学—岩土工程]