Wuhan Greenland Center-Building Structure

The third tallest building in the world - a super high-rise landmark skyscraper in Wuhan, China with a design height of 636 meters - Wuhan Greenland Center is a representative project of super high-rise steel structures supplied and served by Tianjin Yuantai Derun Group.

The project is located in the core area of Wuhan Binjiang Business District. It consists of a super high-rise main building, offices, apartment auxiliary buildings and commercial podium buildings, with a total construction area of 728,600 m2. Among them, the super high-rise main building has 6 floors underground and 120 floors above ground, with a height of 636m. It is designed with a triangular hyperboloid shape based on Wuhan's unique "Two Rivers and Three Towns" concept. The building structure of Wuhan Greenland Center adopts the form of steel plate shear wall core tube + outrigger truss + stiff giant columns, with a double-layer tower crown of 60m high space tube truss structure on top.

With the innovation of construction technology, formwork and frames for high-rise building construction have developed in a rich and diversified way. From the early scattered wooden formwork to the integrated large steel formwork, to lifting formwork, turning formwork, sliding formwork, climbing formwork, to today's low-level jacking formwork system, great progress has been made in terms of construction progress, quality, and safety. Big improvement. The Wuhan Greenland Center project adopts the third-generation micro-convex fulcrum jacking formwork system independently developed by China Construction Third Engineering Bureau.

It consists of a truss steel platform, columns, support frames, load-bearing parts, suspended aluminum formwork, operating pylons and electronically controlled hydraulic systems, and integrates a ZSL380 boom tower crane fixed on it, eliminating the need for a separate tower crane. Climbing, this is the first of its kind in the world, and its application status is monitored to be good. In the future, the integration of main tower cranes will be gradually realized. The entire top formwork system contains a construction load of approximately 2,000t, and 12 oil cylinders provide a total lifting force of 4,200t. Different from the previous generation of low-position top mold, the hydraulic jack is set on the periphery of the core cylinder, which greatly improves the lateral stiffness and overall stability. The damage-free wind range of the top mold's own structural system is increased to level 14.

The "round to square" unit independently developed by Tianjin Yuantai Derun Group has the ability to process square tubes with a maximum diameter of 1000mm×1000mm, rectangular tubes of 800mm×1200mm, and ultra-large diameter and ultra-thick wall square and rectangular tubes with a maximum wall thickness of 50mm. We have successfully supplied products with a maximum diameter of 900mm×900mm×46mm to the domestic market and exported products with a maximum diameter of 800mm×800mm×36mm. We have met a variety of complex technical requirements of domestic and foreign users, including rectangular tube products of 400mm×900mm×30mm. It also represents the leading level of "round to square" technology at home and abroad.

After years of process improvement, the outer arc of the large-diameter, ultra-thick-walled square and rectangular tube products produced by Tianjin Yuantai Derun Group’s “circle-to-square” process has successfully overcome the defects that are prone to cracks and “deformation” during the round-to-square bending process. "It is difficult to control the flatness of the process pipe surface. It can meet the product requirements of relevant domestic and foreign standards and the special technical parameter control requirements of customers. The products have been widely praised in key projects exported to the Middle East and can basically replace the original ones in China." The "box column" products in the matched steel structure enterprises, the square and rectangular tube products have only one weld seam, and their structural stability is much stronger than the "box column" products welded by steel plates with four weld seams. This can be seen in the requirement of Party A to specify the use of "square and rectangular tubes" and prohibit the use of "box columns" in some key foreign projects.