装配式建筑外墙纤维网格布复合层力学性能研究  

Research on mechanical properties of fiber mesh composite layers for exterior walls of prefabricated buildings

作　　者：马世龙 王娟 刘谦益 杨雨奕 付杰 MA Shilong;WANG Juan;LIU Qianyi;YANG Yuyi;FU Jie(Shanghai Research Institute of Building Science Co.Ltd.,Shanghai 201108,China;Shanghai Tianbu Technology Co.Ltd.,Shanghai 200333,China)

机构地区：[1]上海市建筑科学研究院有限公司,上海201108 [2]上海天补科技有限公司,上海200333

出　　处：《新型建筑材料》2025年第3期81-86,共6页New Building Materials

基　　金：国家重点研发计划资助项目(2022YFC3801600);上海市2022年度“科技创新行动计划”(22dz1207200)。

摘　　要：探讨了多种纤维网格布及配套砂浆对建筑外墙复合层拉伸断裂性能及粘结强度的影响,分析了冻融循环与干湿循环下装配式建筑外墙纤维网格布复合层的劣化规律。研究表明,不同纤维网格布对复合层拉伸断裂性能的影响不同,三轴网格布断裂拉伸强力及伸长率在强向与弱向上的稳定性优于二轴网格布;配套砂浆对复合层粘结性能的影响大于纤维网格布,增强配套砂浆的韧性和抗裂性能显著提高纤维网格布复合层的拉伸和粘结性能;复合层拉伸断裂性能、粘结性能易受干湿循环、冻融循环影响,需在设计与应用中加以重视。This paper discusses the influence of various kinds of fibre mesh fabrics and supporting mortar on the tensile properties and bond strength of composite layers of building facades,and analyses the deterioration law of fibre mesh fabric composite layers of prefabricated building facades under freeze-thaw and dry-wet cycles.The study shows that different fibre mesh fabrics have different effects on the tensile properties of composite layers,and the tensile strength and elongation at break of triaxial mesh fabric are better than that of biaxial mesh fabric in the strong and weak directions;the effect of supporting mortar on the bonding properties of composite layers is higher than that of fibre mesh fabrics,and the toughness and anti-cracking properties of the supporting mortar are strengthened to significantly enhance the tensile and bonding capabilities of fibre mesh fabric composite layers;the tensile fracture properties and bonding properties of the composite layer are easily affected by dry-wet cycles and freeze-thaw cycles,which need to be paid attention to in design and application.

关 键 词：装配式建筑外墙复合层 三轴网格布 力学性能 干湿循环 冻融循环 

分 类 号：TU528[建筑科学—建筑技术科学]