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为研究粘钢-体外预应力综合加固法加固的T梁的受力特性,采用粘钢加固、体外预应力筋加固、粘钢-体外预应力综合加固法加固混凝土T梁,对比3种加固方法加固下T梁的结构刚度、裂缝宽度和极限承载力等结构特性,采用有限元进一步分析加固后梁的结构特性,并根据结果提出综合加固法加固下T梁承载力建议计算公式。研究表明,粘钢-体外预应力综合加固法加固的T梁具有良好的结构受力性能。
In order to study the stress characteristics of T-beam reinforced by sticking steel-external prestressing consolidation method, the concrete T-beams were reinforced by sticking steel reinforcement, external prestressing tendon reinforcement and sticking steel-external prestressing consolidation method to compare the three strengthening methods Based on the structural characteristics of the strengthened beam, the structural characteristics of the strengthened beam, the width of the crack and the ultimate bearing capacity of the strengthened T-beam are also analyzed. The proposed formulas for calculating the bearing capacity of the T-beam are given based on the results. The results show that T-beam reinforced by visco-steel-external prestressing consolidation has good mechanical properties.