加大截面加固法；增大截面法是用与原结构相同的同种材料增大构件截面面积，

Enlarged cross-section reinforcement method; enlarged cross-section method is a reinforcement method that uses the same material as the original structure to increase the cross-sectional area of ​​the component, thereby improving the performance of the component. It can not only improve the bearing capacity of the reinforced member, increase its section rigidity, but also improve the ductility of the member through the treatment of the seismic zone. <br><br>This method is widely used to reinforce general members such as beams, slabs, columns, and walls in concrete members, columns, roof truss, and brick walls and brick columns in steel structures. <br><br>Its reinforcement effect is directly related to factors such as the stress level, material performance, construction process, joint surface treatment and whether to unload and reinforce the original structure during reinforcement. The utility model has the advantages of simple process and wide application area, and can be widely used for strengthening beams, columns, slabs, walls and other components in concrete structures. The disadvantage is that the workload of on-site wet work is large, the use space is reduced, and the structure's own weight is greatly increased.

The method of increasing cross-sectional reinforcement is to increase the cross-sectional area of the component with the same material as the original structure, so as to improve the reinforcement of the component's performance. It can not only improve the carrying capacity of the reinforced component, increase its cross-sectional stiffness, but also improve the elongation of the component by the treatment of the seismic zone.<br><br>This method is widely used to strengthen the concrete components of the general components such as slats, plates, columns, walls, columns, roof frames and brick walls, brick columns and so on. <br><br>The reinforcement effect is directly related to the stress level, material performance, construction process, combination surface treatment and whether the reinforcement of the original structure is related. The advantage is that the process is simple, the application is wide, can be widely used to strengthen the concrete structure of beams, columns, plates, walls and other components. The disadvantage is that the site wet operation workload is large, reduce the use of space, so that the structure of self-weight has a greater growth.

The method of enlarging cross-section is to increase the cross-sectional area of the component with the same material as the original structure, so as to improve the performance of the component. It can not only improve the bearing capacity of the strengthened members, increase the stiffness of the section, but also improve the ductility of the members by dealing with the earthquake resistance area.<br>This method is widely used to strengthen the general components such as beams, slabs, columns and walls in concrete members, as well as columns, roof trusses, brick walls and brick columns in steel structures.<br>The reinforcement effect is directly related to the stress level, material performance, construction technology, joint surface treatment and unloading reinforcement of the original structure. It has the advantages of simple technology and wide application. It can be widely used to strengthen the beam, column, plate, wall and other components in concrete structure. The disadvantage is that the work load of wet operation is large, the use space is reduced, and the self weight of the structure is greatly increased.<br>