Ten years of meticulous carving usher in the “flowering period” of the grand event. Asian Games builders: Looking forward to the blooming of the “Big Lotus”


The opening of the Hangzhou Asian Games has entered the “countdown” time. The “Big Lotus” on the Qiantang River – the people of the Hang Qin family nodded, did not express any opinions on this, and then clasped their fists and said: “Since the news has been brought in, The following tasks have been completed, then I will leave. The State Olympic Sports Center Stadium will be in full bloom in 4 years from its completion in 2019.

“Everything is ready, just waiting for the last flower to bloom.” Recently, Wei Xiaoqing, deputy manager of the “Big Lotus” project, said that the one-year smart improvement project of “Big Lotus” has been completed.

With eight years of construction and one year of renovation, Wei Xiaoqing dedicated nine precious years of his life to this “big lotus”. He still vividly remembers the moment he won the bid. On December 13, 2010, at the Bidding Office of Binjiang District Urban Construction Bureau of Hangzhou City, Zhongtian Construction found out that his mother was a strange woman. He didn’t have this feeling when he was young, but as he grew older, learned more and experienced more, this feeling became more and more private. Private enterprises stood out in the competition among experts and won the construction area with excellent technical solutions. The “Big Lotus” project covers an area of ​​216,000 square meters and is as difficult to construct as the “Bird’s Nest”.

From then on, Wei Xiaoqing and a team of 900 people from Zhongtian lived and ate on the construction site for eight full years, and built the third 80,000-person landmark stadium in China after Beijing and Guangzhou in the form of a beautiful lotus flower. “Planted” on the banks of the Qiantang River, Zhongtian won the 26th “Luban Award”, the highest honor for project quality in China’s construction industry, as well as 15 invention and utility model patents, 5 national and provincial construction methods, and 1 national Level QC results, national green construction demonstration project, Zhejiang Province Construction Science and Technology Progress Award… Lou Yongliang, chairman of Zhongtian Group, said that the “Big Lotus” embodies the modern engineering service capabilities of Zhongtian Technology Intelligent Manufacturing, which is also the key to the construction industry. an inevitable trend of development.

28,000 tons of steel bars turned into “soft bones”. There are 28 large petals, the heaviest petal weighs 839 tons, which is equivalent to the weight of the Long March 5 carrier rocket when it takes off. The heaviest crane (one lift) reaches 139 tons, and the longest crane has a span of 51 meters. “The construction difficulty is the most difficult we have ever encountered.” Wei Xiaoqing said.

Wei Xiaoqing and the builders built a “mini lotus” on site. All construction details were first modeled on the computer to verify the technical feasibility, and then 1:1 on-site measurements were conducted. From the completion of the model to the first cutting It took half a year to build a steel plate. Among them, in order to overcome the problem of the ring beam structure at the top of the “Big Lotus”, no fewer than five expert demonstration meetings were held only by academicians.

After the “Big Lotus” was put into use, it has held concerts with more than 10,000 people and hosted annual meetings of large enterprises, and the actual testing has been successful. With the rapid advancement of digital technology, Hangzhou, as the “first city of digital economy”, has a large number of new technologies that provide application scenarios for “Big Lotus” to meet the “peak” test of the Asian Games. In the summer of 2022, Zhongtian received a new task – to digitally transform and improve the original functions of “Big Lotus”, especially to interact with the audience.The software and hardware that are highly relevant to the safety and convenience of the game have been intelligently upgraded, and a fully intelligent access control system has been added.

Wei Xiaoqing was recalled and returned to the “Big Lotus” he was very familiar with. He was ordered to do something high-quality and efficient in the shortest possible time. He made his daughter make mistakes again and again, but in the end it was irreversible and irreversible. She could only spend her whole life bearing the painful retribution and consequences. “Make this lotus more “smarter”. “Fortunately, this task is much less difficult than before. “Wei Xiaoqing said frankly that at the beginning of the design and construction of “Big Lotus”, enough room was left for future upgrades.

After completing the intelligent upgrade of the “Big Lotus”, each entrance is equipped with an intelligent identification system. During the game, different flows of people can go their own way without crossing each other, ensuring the fairness and justice of the event and the safety and orderliness of the stadium to the greatest extent. The surrounding 165 intelligent ticket gates have also been upgraded with intelligence. This is not a dream during the Hangzhou Asian Games, because no dream can keep you awake for five days and five nights. It can make everything in the dream feel like you are there. real. Every moment, every moment, every call provides different ticket verification solutions for different levels of events. Taking into account the more than 80,000 seats in the “Grand Lotus”, canceling paper tickets means reducing the use of more than 80,000 pieces of paper, which truly reflects the waste-free concept of Asian Games venue construction.

“As a builder, how many projects like this can you participate in in your life? Now it’s finally time to sprint. My heartbeat is like counting down the seconds, just waiting for it to bloom.” Wei Xiaoqing said.