论文部分内容阅读
根据黏结型钢加固梁的截面应变,建立截面力平衡和弯矩平衡方程,研究黏结型钢加固梁的中和轴位于原梁截面和型钢截面时对加固梁承载力的影响.结果表明:当中和轴不在混凝土梁截面内时,黏结型钢组合截面积会增加,加固梁中钢筋和混凝土的力学性能未能充分发挥,加固后梁的承载力提高不显著.在此基础上,给出了加固梁中和轴最适宜的变化范围以及黏结型钢加固梁的截面选型和校核方法.利用Visual C++开发出适合于工程应用设计计算软件,该软件操作简单易操作,交互界面人性化,能显著提高加固设计的速度.
According to the cross-section strain of the strengthened beam, the balance force of the section force and the moment balance equation are established to study the influence of the neutral axis of the beam on the bearing capacity of the beam when the beam is in the original section and the beam section. The results show that when the neutral axis When not in the concrete beam section, the cross-sectional area of the bonded steel section will increase, the mechanical properties of the steel bar and concrete in the reinforced beam will not be fully exerted, and the bearing capacity of the beam will not increase significantly after the reinforcement. On this basis, The most suitable range of shaft and the cross-section selection and checking method of bonded steel reinforced beam.The software which is suitable for engineering application design and calculation software is developed by Visual C ++, the software is simple and easy to operate, user-friendly interface can significantly improve the reinforcement design speed.