[Haichuan’s eyes open] Lifting operation of the steel structure dome of the world’s largest spherical building
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At 9 a.m. on May 13, after 18 hours of intermittent work, a huge butterfly-shaped dome lattice shell was slowly lifted to an altitude of 97.4 meters, marking the successful completion of the dome lifting of Building 1 of the "Sun Hotel·Crystal Plaza" project in Huzhou, Zhejiang, the world's largest spherical building constructed by China Five Metallurgical Group.
The China Five Metallurgical Corporation's "Sun Hotel Crystal Plaza" project is located in the southern new city of Huzhou City, Zhejiang Province, adjacent to Shenzhuang Yang in the east. It has a planned land area of about 330 acres and a total construction area of about 220,000 square meters. It is divided into two blocks: Sun Hotel and Crystal Plaza. Among them, the Sun Hotel is a five-star comprehensive hotel in the form of a 19-story spherical hotel building with a height of 98.7 meters and a diameter of 97.2 meters. After the project is completed, it will become the largest spherical building in the world. Its curved roof is a single-layer spherical lattice shell structure with a maximum span of 58.8 meters. Due to the layout of the elevator shaft and the ultra-high internal suspended space, it cannot be hoisted in pieces, nor can it be lifted as a whole after being assembled on the ground. The project team determined the plan of "in-situ block hoisting + partial lifting" through multiple technical research and organization of simulation exercises. The part of the dome that needs to be lifted this time weighs 116 tons. The box-shaped components that make up the dome are only 8 mm thick in section. The overall span is large and in an irregular butterfly shape. It has reached the limit of this type of structural design and is currently the spherical lattice shell structure with the largest span in China.
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It cannot be improved as a whole after being assembled on the ground. The project team determined the plan of "in-situ block hoisting + partial lifting" through multiple technical research and organization of simulation exercises. The part of the dome that needs to be lifted this time weighs 116 tons. The box-shaped components that make up the dome are only 8 mm thick in section. The overall span is large and in an irregular butterfly shape. It has reached the limit of this type of structural design and is currently the spherical lattice shell structure with the largest span in China.