On September 26,
Shandong International Financial Center (IFC), the high-profile tallest building under construction in Shandong, ushered in the "double 100-meter mark",
that is, the 100-meter tower capping and main tower construction
broke through the 100-meter mark.
Qilu's first high-profile figure appears.
Shandong International Financial Center (IFC) is located at the intersection of the high-density comprehensive urban functional area of Jinan International Financial City and the landmark Central Park. It includes a main tower, a 100-meter tower, podium and underground garage, with a construction area of 40.9 Ten thousand square meters, of which the main tower is 428 meters tall, with 88 floors above ground and 4 floors underground. It is expected to be completed and put into use by the end of 2022. After completion, it will become the tallest building in Shandong.
According to reports, after the high-rise building is completed, a super five-star hotel The Ritz-Carlton Hotel will be stationed. Jinan will become the 14th city in China where Ritz-Carlton has entered, filling the gap in Jinan's super five-star hotels.
Multiple "black technologies" help "jump up"
On the 26th, reporters learned at the scene that the project department of the Second Company of China Construction Eighth Engineering Bureau used a variety of new construction technologies used for the first time in Shandong Province during project construction to help "Shandong "The first high" keeps "jumping up".
"dragon absorbs water" - large volume concrete rapid pouring technology. In order to complete the concrete pouring of the foundation floor with a maximum thickness of 12.1m quickly and with high quality, the project department used five concrete mixing stations and deployed 110 concrete mixer trucks to deliver materials together. The "chute + concrete conveyor + truck pump" pouring method was adopted. The on-site layout Four large chutes were built, like four giant dragons hovering over the construction site, with an average speed of 370m³ and a maximum speed of 670m³. In the end, it only took 56 hours to complete the 4,100-square-meter tower foundation floor and 21,000 cubic meters of concrete pouring, refreshing It has achieved a number of indicators for large-volume concrete pouring, breaking and surpassing Jinan City's historical record for a single pour, and opening a new chapter in large-volume concrete pouring.
"Tongtian Lux" - attached self-climbing luffing jib tower crane external construction technology. This is a new technology independently developed and applied by the project department for the first time, taking into account many factors such as lifting weight, lifting times, and distribution characteristics of the steel structure. Its maximum working range is 55 meters and its maximum lifting capacity is 80 tons. It can meet the lifting tasks safely and efficiently, providing guarantee for the rapid and high-quality construction of the project's civil engineering and steel structures.
"Tower Building Artifact" - low-position, few-fulcrum intelligent hydraulic jacking platform technology, also known as "intelligent building machine", this is also the first time this technology has been used in Shandong Province, solving the technical problems in the construction of the vertical structure of the tower core tube in one fell swoop , quality, safety, fire protection, environmental protection, energy saving and other problems. The project department has also improved and optimized the installation process, and innovatively applied modular overall installation technology. The truss module is assembled and welded on the ground at one time. With the help of a luffing tower crane, the modules are lifted in the air and connected in the air. Taking full advantage of the advantages of safe and stable ground operations, fast operation speed, and high installation accuracy, it not only shortened the installation period of the entire truss by nearly 30%, but also reduced the risks of high-altitude operations, taking into account quality, safety, and green construction. and other various needs.
In addition, the use of HBT90-CH ultra-high-pressure concrete delivery pump ensures synchronous climbing between the construction elevator and the top formwork system, providing vertical transportation for construction workers. Its maximum conveying height can reach 580 meters. The core tube is equipped with two HGY21 placing machines fixed on the top form truss and lifted together with the steel platform. It can rotate 360 degrees. The discharge port is connected to the string drum for concrete pouring. There are 7 medium-high-speed variable frequency construction elevators inside and outside the core tube, equipped with 13 ladder cages, which are divided into high and low zones. The elevator operates through a specially designed attachment system, which uses a rolling attachment wall to connect to the jacking platform, allowing direct access to the top mold working platform.
Source: Qilu.com·Lightning News Reporter Jia Fangzheng
Editor of this article: Wang Chunling
