In the 1980s, as other saddle shaped buildings in the world collapsed, a new generation of builders were ordered to repair them again.
Tang Baoheng, the “national architect” in the cable net layout drawing, has bold and innovative design ideas, but how to model and calculate has become a challenge.
However, none of these suspension cables was damaged or rusted all the time.
In the 1960s, in order to better implement Chairman Mao’s teaching on “developing sports and enhancing people’s physique”, Comrade Luo Xilin, then the director of the Zhejiang Provincial Sports Commission, proposed to “build a stadium as a place for cultural and sports activities and a window for external reception.” In 1972, “Zhejiang Gymnasium” participated in the Chinese architecture exhibition held in Iran and won the “Excellent Architectural Creation Award of the Chinese Architectural Society”.
The “ship type” shape makes the stress of each suspension cable different.
builds a classic.
The steel consumption of the whole roof was only 17.3 kg/m2, 55.9 kg less than that of California Stadium in the United States, and 34.6 kg less than that of Jiangsu Stadium.
Built in the 1980s, it was also the hand of the first constructor, and is recognized as the symbol of Hangzhou Gymnasium by Hangzhou people.
As a landmark public building in Hangzhou in the 1960s, Hangzhou Gymnasium is the first one in China with a new shape, a large span, and the use of steel in the province, and the only remaining cable “hull” shaped building in the world.
In 1979, Hangzhou held the first world event – the first World Badminton Cup of the World Badminton Federation in Zhejiang Stadium, the predecessor of Hangzhou Stadium.
Hangzhou Stadium is the first comprehensive stadium in Zhejiang Province, with a total floor area of 12600 square meters, 5308 spectator seats, martial arts rooms, weightlifting rooms and other rooms.
Under repeated observation and tests, he borrowed from the state of sand unloading by engineering vehicles, used the fluidity of dry sand and certain friction, poured out the “ship type” structure layer by layer, and built a suspension cable model with wooden sticks.
After completion in 1969, it became the first saddle shaped suspension cable “hull” shaped building in China, and now it is the only existing concrete ring girder saddle shaped suspension cable structure in the world.
During this period, they do not go to the toilet or eat, but only pursue the perfect and perfect craftsmanship.
It is a milestone in the development of public buildings in Hangzhou.
Following the opening of the “First Construction” as before “, the” First Construction “classic architecture and classic memory column are launched to review the historical architecture, recall the craftsmanship spirit and build a family enterprise sentiment.
In the construction of the main structure of the gymnasium, the combination of the saddle shaped hyperbolic roof and the oval building plane of Hangzhou Gymnasium is the first in China.
As the earliest “national brand” construction army in China and the province, Zhejiang First Construction Company (Zhejiang First Construction) has been engaged in the tide of socialist construction since its establishment in 1949.
The first constructor associated “quality improvement” with “cost reduction” and boldly adopted spatial cable net structure to save steel.
The repaired mural is full of “retro” flavor, and has become the “new favorite” of citizens.
In the 1960s, the interior of the competition hall of Hangzhou Stadium before construction was carefully sealed with engine oil.
It was the stadium with the lowest steel consumption of large-span roof structure in the world at that time.
The forest built by Yijian’s mason temple was not fooled by the “first creation”, and has been breaking the problem at the construction site.
Hangzhou Gymnasium is also a good place for citizens’ daily fitness and leisure while holding numerous heavyweight sports events and mass sports activities..
Finally, the repair work is just to replace the panel materials to lighten the roof.
The appearance of mosaic murals in order to ensure the fitting and integrity of the murals, it takes a whole day to put them on the shelf as soon as they are built.
Following the principle of “repairing the old as the old”, the mosaic mural completely retains the style and features of the art of the year.
For more than half a century, this building has become a classic case in all previous civil engineering textbooks.
Hangzhou Gymnasium has many technical characteristics, such as a new shape, a large span, and a steel province.
The plan of the second floor of the gymnasium “Standing on the scaffold is an artist”.
In April 1966, the Hangzhou Stadium (formerly Zhejiang Stadium) contracted by the First Engineering Division (Zhejiang First Construction) of Zhejiang Construction Corporation (Zhejiang Construction Group) broke ground.
The innovative roof of cable net construction (the first prestress state) is vertically cross braided into a stress system through 56 load-bearing cables and 50 stabilizing cables.
In order to welcome the Asian Games, the stadium was renovated again.
The problem of how to improve the stability of long-span roofs needs to be solved urgently.
A large national event will be held in Hangzhou, and the venue must be here; When foreign sports delegations come to Hangzhou to visit, in addition to visiting the West Lake scenic spots and historic sites, one part of the foreign affairs schedule is to visit the stadium.
A determined and tenacious person standing on the scaffold is an artist.
The saddle shaped suspension roof has since provided a new form and practical basis for the roof structure of the multi-function hall in China.
The saddle shaped oval plane makes the space utilization of the gymnasium more reasonable, avoids the blind angle of watching the games, and has a more beautiful and flexible shape.
The original “sand table model” was sent to the design institute to calculate the specific data and adjust the construction drawings, becoming the prototype of the first suspension hull building in China.
After the completion of Hangzhou Gymnasium, it will soon become the face of our province.
The first constructor of the oval competition hall always pays attention to the meticulous construction, and obtains the optimal construction scheme in combination with the actual situation of the venue location, use, etc.
Behind the mosaic murals that amazed Hangzhou, there is the craftsman’s Mosaic tile strokes on the side of Dingli Gymnasium, which is 15.7 meters wide, 8.3 meters high, and covers an area of about 130 square meters.
The spirit of the craftsman shone on the bright suspension cables.
Zhejiang First Construction Co., Ltd.
