The invention discloses a local cast-in-place construction method for a triangular inclined leg support of a prefabricated
coupling beam. The local cast-in-place construction method comprises the steps that the prefabricated
coupling beam is manufactured, parameters such as steel bars and holes are controlled, a
rough surface is arranged, and a sensor is pre-embedded; manufacturing and mounting a triangular inclined leg support, determining an angle, performing reinforcement treatment, controlling mounting precision, performing
corrosion prevention and arranging a damping device; field positioning and adjustment are conducted, accurate
butt joint is conducted, temporary supports are arranged, and the BIM technology is adopted; local cast-in-place connection is conducted, concrete parameters are controlled, reinforcing steel bars are treated, and additives are added; maintenance and quality detection, temperature and
humidity control, nondestructive detection and construction of a quality tracing
system. The invention further comprises a corresponding building structure. Structural performance and safety are improved, connection reliability and
shock resistance are enhanced, component strength and stability are improved, construction quality and efficiency are guaranteed, precision is ensured, the period is shortened,
quality control and management are optimized, and real-time monitoring and traceable analysis are achieved. Cost is reduced,
environmental protection and energy saving are achieved, and wide application value is achieved.