四川轻化工大学学报（自然科学版）2026，Vol.39Issue(1)：109-118,10.DOI:10.11863/j.suse.2026.01.12
"梅花形"螺栓组合梁正截面抗弯研究
Study on the Bending Resistance of Plum Blossom-shaped Bolt Composite Beam Sections
摘要
Abstract
To verify the durability and safety of the"structural adhesive+high-ductility concrete"steel plate-masonry composite beam,comparative tests are conducted on the composite beams that has been loaded for 8 years to explore the reliability of this modification method.Moreover,the arrangement of the bolts is optimized,and a reinforcement method with"plum blossom-shaped"bolts is proposed,forming a new type of steel plate-masonry composite beam combined with"equilateral triangle"and"inverted triangle".The study shows that the ultimate bending load capacity of the new composite beam can be increased by 10.4%,and the deformation resistance and load-bearing stability of the composite beam are significantly improved,which can effectively delay the buckling deformation of the steel plate.Based on this,a simplified calculation formula for the critical buckling load of the positive section bending of the composite beam is proposed,providing a theoretical reference for the application of the"plum blossom-shaped"bolt reinforcement method in practical engineering.关键词
梅花形螺栓/螺栓加固/承载力/组合梁/耐久性Key words
plum blossom-shaped bolt/bolt reinforcement/load-bearing capacity/composite beam/durability分类
建筑与水利引用本文复制引用
孟佳宝,陈信堂,吴德义,孙强.."梅花形"螺栓组合梁正截面抗弯研究[J].四川轻化工大学学报（自然科学版）,2026,39(1):109-118,10.基金项目
国家自然科学基金项目(51374009,51674005) （51374009,51674005）
安徽省住房城乡建设科学技术项目(2022YF106) （2022YF106）
建筑防水与装饰装修智能化建造与施工人才培养实践研究项目(2021BCC02006) （2021BCC02006）
中建材(合肥)钢构科技有限公司委托项目(HYB20220077) （合肥）
