The key construction technologies of Chengdu large-opening cable dome and large-scale airport terminal building under high-speed rail have reached the world leading level.
The project team developed the cable-membrane structure connection structure and construction method to prevent the large-opening cable dome structure from unlocking, which solved the problems that the cable body of single-layer curved ETFE membrane structure is easy to unlock and the membrane nodes are easy to accumulate water. A series of tests such as anti-slip, uniformity, creep and unlocking of ring cable and cable clamp of large-opening cable dome structure are carried out systematically, which supports the technological construction of large-opening cable dome.
The temporary support device of pendulum column and the progressive early dismantling technology of supporting jig frame are developed, which solves the problem of high-altitude installation of ultra-long circumferential steel space truss. This achievement has obtained patents 12 (including 7 invention patents), 4 provincial construction methods, 8 papers published and edited by local standard 1.
The key construction technology of large airport terminal building under high-speed rail was successfully applied in the T 1 terminal building project of Chengdu Tianfu International Airport of China Construction Eighth Bureau. This achievement is aimed at technical problems such as complex geological conditions, high-speed rail passing under buildings, and super-long complex structure construction. The construction method of super-long prestressed beam thin plate concrete structure is put forward.
The seamless construction of ultra-long thin slab concrete structure is realized; The construction method of vibration isolation structure of terminal building crossing high-speed railway is developed, which solves the problem of high-precision construction of vibration isolation bearings.
Hard core strength, science and technology war, intermediate frequency, ready-made capital strength;
In the process of fighting the COVID-19 epidemic in China, there is no lack of Chengdu science and technology. Chengdu Yitai Technology Co., Ltd. (hereinafter referred to as "Yitai Technology") is one of them.
The large-scale anti-virus, anti-bacterial and allergen-removing air purifier developed by Yisi Technology can filter COVID-19 and provide protection for medical staff and epidemic prevention workers to breathe healthy air. Besides Chengdu, the purifier is also widely used in Guangzhou, Chongqing, Xi, Wuhan, Beijing and Shanghai.