Experimental and numerical research on crowd squeezing pressure of platform screen doors of rail transit

The platform screen doors of rail transit are the connecting parts between trains and platforms. During operation, the manual push type crowd squeezing pressure loading inspection equipment has problems of low accuracy and low manual control efficiency. In this research, the technology, the automatic control of airbag inflatable loading and inspection technology, was carried out. It uses an air compressor as the air source, and through a pressure monitoring and control module, outputs signals to control airbag pressurization and exhaust pressure relief. The pressurization speed is adjustable, and deformation data of platform door components is detected at the same time. The experimental and numerical results indicate that the loading width of the detection equipment covers all platform door specifications, and the loading is uniform, and meets the linear load requirements for simulating crowd squeezing in the standard. In addition, the research result could effectively improve the authenticity and detection efficiency of platform door simulation detection, and reduce the investment of manpower and material resources, which is helpful for laboratory and on-site testing of platform doors.