Time passed little by little, and finally it was the week before the national award. Five people, Li Yu, Jiang Wei, Zhao Heng, Tan Fei, and Cheng Yu, arrived in Shanghai in advance. When they come, they dismantle the newly made model into small pieces, where they need to be reassembled. This time they are all glued with acrylic, which is particularly beautiful. All the shaped steel beams are also made to look like I-beam ribs, which are many times more refined than last time.
In addition, the national competition also has a structural seismic resistance competition, so they also made a bamboo chopstick model and used a shaking table to simulate vertical and horizontal earthquakes to see their seismic effect.
In order to ensure the anti-seismic effect of the structure, Li Yu adopted the concept of anti-seismic bearings from his previous life, using rubber and thin steel plates to form a bearing that can move horizontally in various ways, and a small amount can bounce up and down to move. Become an earthquake-resistant bearing. This concept perfectly solves the problem of the structure not being able to withstand earthquakes. They also conducted many experiments at school. The vibration table was turned to the highest setting and the structure was not damaged.
A few people prepared all the content. Li Yu was worried that these materials would be lost after handing them in, especially the hand-drawn drawings. In order to keep a souvenir, she also specially found a photocopying shop to scan them all. The disk was backed up. She also scanned the original manuscript from Beijing, which she felt was a souvenir.
On May 16, the National Civil Engineering Competition fired the first shot in shaking various structural models. A small number of architectural structure models fell over in a few clicks and were eliminated directly. The other models were destroyed bit by bit as the shaking levels were increased one after another. In the end, half of the 15-level models were passed, which is the 8-level test. Li Yu's model performed the best, and there was nothing wrong with it at full level.
Followed by the creativity and beauty of the architectural exterior model, Li Yu’s model also won first place because it was particularly beautiful and novel.
The last item is the theoretical knowledge competition. Experts asked questions about the characteristics of their models. Some of the questions were so sharp that many contestants could not answer them.
Finally came to Li Yu’s group. The expert’s first question was, why do you want to build a twin-tower structure?
Li Yu said: "The design concept of the twin towers comes from the concept of "Twin Stars", which means the prosperity and development of the construction area. We adopted a modern and simple style and designed the twin towers to echo each other. , mutually dependent forms form a unique visual effect. At the same time, the twin towers themselves have a rotating exterior, which has an attractive visual effect, but the structure is conservative and stable, ensuring use and enjoyment. We believe that the curtain wall also pays attention to environmental protection and sustainable development. It is easy to cause light pollution, so some of the exterior window curtain walls are changed to aluminum panels and solar panels, combined with low-E curtain walls to ensure green operation and maintenance of the building.
The main architectural features of the Twin Towers are: 1. Highly prominent. : The 99-story building has a total floor height of 326m. It is highly recognizable and can be used as a landmark building. 2. Unique shape: The twin towers echo each other and form a unique shape, which is not only visually impactful, but alsoIt means the prosperity and development of the new area. 3. Complete functions: The Twin Towers are not only a landmark building, but also have multiple functions such as office, commerce, and culture, providing strong support for regional economic and social development. 4. Green and environmental protection: The Twin Towers paid attention to environmental protection and sustainable development during construction, and adopted a number of green building technologies, such as rainwater recycling, solar energy utilization, etc., which embodies the concept of green building. "
The expert's second question: How to enhance the seismic performance of the structure?
Li Yu replied: "There is an old Chinese saying that softness overcomes hardness. Earthquakes are the combined geological forces of horizontal earthquakes and vertical earthquakes. If the structure itself is blindly strengthened, the stiffer the structure, the easier it will be to cause damage at its weakest point.
Therefore, our design concept is to add a seismic isolation transfer layer to enhance the seismic resistance of its upper structure. In this way, the structure has a flexible position to sway with earthquakes, and its own seismic resistance is high, so the structure can naturally improve its seismic resistance.
The expert nodded slightly and then asked: "How did you come up with the idea of adding a seismic reduction and isolation conversion layer? What are the advantages of this technology in practical applications? There are still very few seismic reduction and isolation conversion layers. Where did you come from?" Li Yu thought for a moment and replied: "In our research, we found that traditional seismic design often relies too much on the stiffness and strength of the structure, while ignoring the flexibility of the structure. It can effectively reduce the impact of earthquakes on buildings while improving the stability and safety of the structure. We are inspired by the use of wooden structures in ancient Chinese buildings. The pillars are made of wooden pillars, which have a certain degree of flexibility. The lower parts are all inspired by the hinge support form.” The experts were satisfied with Li Yu’s answer.
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The third question is, is the structure that is too expensive a new thing of the times or a waste of the times?
Li Yu replied: "Everything is about cost-effectiveness. If a building that is too expensive to represent has extraordinary significance and has multiple functions and is easy to use, it is the rebirth of the times and a landmark of a region. If the structure itself has a If the utilization value cannot be applied to a variety of functions and cannot change with the times, then it is a huge garbage!"
After answering the three questions, the experts were stunned while being open-minded and principled. These theories are comparable to those of presidents of major colleges and universities. Talented people have emerged from generation to generation, and each has been leading the way for hundreds of years! All the experts here feel that it is time to quit. Everyone always felt that something was missing. It wasn't until a round of applause started that everyone realized that they had forgotten to applaud, and immediately got into it! Wonderful! It’s really wonderful!
After the applause, the chief judge stood up excitedly. He slowly walked towards Li Yu, his eyes showing appreciation and relief.
"Child, your performance has allowed me to see the future of the construction industry." The old expert gently patted Li Yu on the shoulder, "I hope you can maintain this enthusiasm and innovative spirit and contribute to our The industry brings more surprises.”
Li Yu looked at the chief judge flattered, and she bowed deeply to express her gratitude.
As the main judge finished speaking, the audience burst into warm applause again. This competition not only allowed Li Yu and others to showcase their talents, but also earned them full praise and recognition. However, they know that this is just a starting point, there is still a long way to go, and there are more challenges waiting for them.
The competition ended with them being number one in the country. Not only were they happy, but also Mr. Fan and the president, dean, teachers of Tsinghua University, etc., and of course, Li Yu and her teammates. Major design institutes and construction companies have extended olive branches to them, including internships or traineeships, as long as they can come. This time, Li Yu realized his own value, and the four finally found their own sense of existence. Several people accepted business cards and were reluctant. This time, they were finally no longer confused about their future.
When the competition ended, Li Yu and the others returned to the hotel with the trophies and certificates. The design draft was auctioned off by a development company for 50 million yuan. Now the five people made a lot of money! I also received a bonus of 1 million yuan!
The five people were extremely happy, and of course, they were accompanied by Mr. Fan, Mr. Fan’s assistant and the tutor from their school.
The five of them planned to invite them to dinner, but Mrs. Fan got the better of them. Mrs. Fan liked Li Yu and Jiang Wei, and decided to hold an apprenticeship banquet in a few days, and then let these two The children are treated to a treat. He was a host today and ordered all the best food in the hotel!
The fellow teacher was so happy to follow him. You must know that he was not qualified to contact Mr. Fan. Now he had direct contact with Mr. Fan at close range and realized his dream of architecture! Moreover, in previous years, Tongji ranked first in the country, which made everyone lose face. Now, five people from Li Yu have come out on top with undisputed high scores. They are so proud of their face! This time, several people also ordered some red wine to celebrate a happy event, and Li Yu, a man of two generations, also tried wine for the first time, as if it would be good to try something! In this life, she originally wanted to stay away from this industry that made her sad, but in fact, her own industry is also very beautiful! Isn't it?
Several people celebrated until midnight before returning to the hotel. Someone had already told Gu Han about today's news, so Li Yu directly waited for Gu Han's celebration news! "My Yuyu is the best! I knew you were number one!" and sent an emoji with a large bouquet of flowers, "I will come back with flowers to make up for it."