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"The 600-meter Guangzhou New TV Tower, the 1,007-meter Saudi King Tower, the 492-meter Shanghai World Financial Center, and the Beijing Olympic Games main venue 'Bird's Nest', these world-famous behemoths I have had the privilege of witnessing their original appearance and participating in their development and design." A calm and capable "young man" in front of the memorial wall is very pleased.
He is Liu Zhonghua, from Zhejiang Seiko Steel Structure Group Co., Ltd., a world-class steel structure expert, many famous steel structure landmarks at home and abroad, he has participated in the development and design. The professor-level senior engineer has been working with steel structures since graduating from his graduate degree in structural engineering in 2002, and has achieved great success and recognition. In 2013, at the age of 38, Liu Zhonghua was officially accepted as an expert member by The China Steel Structure Association, the most authoritative steel structure technical organization in China, and became the youngest expert member of the organization.
From a former engineer in a grassroots organization to a remarkable chief engineer now, Liu Zhonghua attributes his achievements to catching up with a good era, an era of rapid development of the country's infrastructure. In November 2020, at the Great Hall of the People in Beijing, Liu Zhonghua was honored and commended by the Party Central Committee and the State Council as a national model worker.
<h1 class="pgc-h-arrow-right" data-track="7" became famous > world war, presided over the "Bird's Nest" steel structure drawing design</h1>
At the opening ceremony of the 2008 Beijing Olympic Games, the "Bird's Nest", which was unveiled to the world, became the focus of the world because of its unique shape. At that time, Liu Zhonghua, who was standing by the TV set, shed tears of excitement, and the project that everyone had worked hard for many years finally let the world see. At the beginning of the project in 2005, the "Bird's Nest" was considered to be one of the most complex steel structure projects in the world at that time, and as the person in charge of deepening the design work of such a large project, the young Liu Zhonghua seemed to have the supreme glory, but in fact shouldered a heavy responsibility.
"Bird's Nest" National Stadium
It is the persistence and struggle of countless of them, deeply rooted in their posts like screws, contributing their own strength to the smooth completion of the project, and finally the "Bird's Nest" shines in the eyes of the world, and the technical research related to the "Bird's Nest" also won the second prize of the National Science and Technology Progress Award in 2012.
Everything is difficult at the beginning, and the first fatal problem they encounter when designing drawings is that there is no mature commercial design software to use. At that time, the construction drawing design unit used a foreign design software, but this software could not meet their needs to deepen the design. In order to ensure the smooth progress of the next work, Liu Zhonghua led the company's technical team, together with a group of professors and doctors of Tongji University, day and night to discuss, test, build a "home" at the round table, and finally the effort paid off, developed a set of special deepening design software for bending and twisting components, and successfully solved a huge problem in the steel structure of the Bird's Nest with an innovative technical level.
<h1 class="pgc-h-arrow-right" data-track="12" > steel structure master, creating a number of "firsts" in a row</h1>
With the golden business card of the Bird's Nest, Liu Zhonghua's team's fame spread in the industry at once, and all kinds of complex structures, steel structure projects with high processing requirements and unprecedented construction difficulties have come to the door, which is the public's recognition of their professional ability, but also brings countless unknown work dilemmas. "The grinding of work makes me firmly believe that there is no technical problem that cannot be solved, as long as there is a tenacity, immersion in research, perseverance, and eventually solve the problem and get the harvest." This is the result of Liu Zhonghua's review of his honors and challenges over the years.
Some of the projects in which Liu Zhonghua participated
Compared with the traditional concrete, the steel structure has many advantages such as high strength, light structural weight, good plastic toughness, etc. After the Olympic Games, the use of steel structures will become a big trend, and Liu Zhonghua has also created a number of firsts like "open and hanging".
The first suspension tension string structure in China - Zhengzhou International Convention and Exhibition Center, the largest domestic single area of the special-shaped curved mesh frame - Capital Airport T3 Terminal, the world's largest span of two-way tension string structure - national stadium, the first openable and closed stadium in China - Nantong Stadium, the world's largest single-layer mesh shell - Shanghai World Expo Axis Sunshine Valley, the world's largest span of string dome - Jinan Olympic Sports Center Stadium, the world's largest airport - Beijing Daxing Airport... A large number of heavy, large, difficult, and new national key projects have come out of nowhere.
The development of steel structure not only makes the birth of a large number of new steel structure buildings, but also has a positive impact on the upstream and downstream steel industry, which not only promotes the continuous development of new technologies in the upstream steel industry, lays a good application foundation for the development of the steel structure industry, but also drives and drives the development of the downstream steel structure industry, and its demand changes directly determine the future development of the industry. Liu Zhonghua, like this special steel structure, has convincing professional ability and innovative spirit, and carries forward the spirit of steel structure.
"In the endless future, each of us should feel fortunate to be able to work hard in this new era, to be able to resonate with the pulse of industrial transformation, and to grow together with the development of the country." This is Liu Zhonghua's own perception, but also a deep hope for future generations.