The towers are like mountains，Meixi Lake is used as water，The view island is a continent，A landscape island city is painted.。May 8th，Jinmao Meixi Building Project in Xiangjiang New Area of Hunan Province ushered in the 318-meter core tube capping node of the main building.。

The total investment of Jinmao Meixi Building project is about 3.5 billion yuan.，Floor area 1.850,000 square meters，The total building area is 210,000 square meters，It is the first project and commanding point of Meixi Lake Super Axis.，After completion, it will become a new landmark of science, technology and culture in the provincial capital.，It plays a leading role in the core area of Hunan Xiangjiang New Area and Meixi Lake International New Town.。

Initial stage of the project，Commencement of Concrete Pouring for Main Floor of Jinmao Tower in Changsha。After 68 hours of fighting day and night，It is developed and constructed by Changsha Fangxing Xingye Real Estate Co., Ltd.、Construction of Zhongnan Branch of the Third Company of China Construction Fifth Engineering Bureau、Changsha Dingchen Machinery Equipment Leasing Co., Ltd. has successfully completed the concrete pouring of the main floor of Changsha Jinmao Tower, which undertakes pumping services.。

5 sets of TrinityCSeries 10 Pump Truck Fights Overnight，Pumping is achieved“Arrive on time”“0” Breakdown ，The single volume of concrete pouring also set a new record in the central China region of Jinmao, China.。

Accompanied by an increase in height，The difficulty of project construction is also doubling.。“The section of the core tube has been contracted twice.，It brings great challenges to the structural construction.。”Project core tube building number Changfangning said.。The project is not only highly out of limits，It also faces torsional irregularities.，Size、Bearing capacity mutation and other problems，It belongs to a complex high-rise building with high and irregular double transfinite.。

In order to ensure the stability of super high-rise structures，In this project, girdle trusses are set on the 20th and 38th floors respectively.。ThroughXI-shaped ring belt frame reinforcing layer frame-Core tube mixed structure，The lateral stiffness and torsional stiffness of the whole structure are effectively improved.、Improve the seismic and wind resistance of the structure。At the same time，The project adopts the internal support and external climbing system.（The interior is made of scattered aluminum mold.，Climbing formwork shall be used externally），Synchronous construction of horizontal and vertical structures，Effectively solve the construction problems after the core tube shrinks。

May 8，At the construction site，Quality controller Xie Zhenwei is checking the concrete pouring.，The project requires 500 tons of concrete to pass through“One pump to the top”Transported to an altitude of over 300 meters.，In six minutes.“Soar to the sky”，Completion of core tube capping and pouring。Because the pumping pressure in the concrete pump pipe is as high as 21MPa，The project is specially equipped with ultra-high pressure concrete pump pipes.，Ensure that the pipeline has stable anti-explosion capability during pumping.，Hydraulic and electric spreaders are installed as the terminal equipment in concrete transportation.。

Finally，Trinity 11030C-10 The truck-mounted pump successfully completed the pouring task，It has won unanimous praise，“He is indeed the king of pumps in the world.！”

“Since the commencement of the project，More than 600 builders fought during the peak period.，Promote construction with high efficiency and high quality in three days and one floor，Full capping is expected to be completed by the end of May this year.。”Project manager Li Meng said.。

It is understood that，The project of Jinmao Meixi Mansion is undertaken by Zhongnan Company of the Third Company of the Fifth Bureau of China Construction.，Enterprises always adhere to the concept of green and sustainable construction，Deep combination of the territory's long history and culture，Through and nature、Build、Close integration of humanities and other elements，Build what the people yearn for“Modern new city”。