After comprehending the intentions of the leaders, the people of the construction company fully understood where the focus of the building was. ()

"At the end of the day, it's a big stadium, not a stadium." Mei Wan looked at the drawings piled up in front of her, these are the drawings drawn by her subordinates for a few nights, there is no large wide-format printer in this time and space, and the drawings are drawn one by one on the drawing board.

"Do you want to build a runway?" Li Xiaolu, who was in charge of planning and design, asked.

"The runway still needs to be built, and military parades and mass parades need to be used. The material is cinder. Mei Wan held her chin and thought about it, "The site is paved with sand and lime and rolled it, and it will not accumulate water when it rains." None of the other facilities are required. ”

Building materials were scarce, so the large terraced grandstand that surrounds the stadium was not built for the time being. The focus is on the rostrum. According to Ma Qianzhu's vision, this rostrum must be magnificent and solid, so that people can revere it at a glance.

"Majestic, magnificent, and it has to feel very solid, you know? Solidity, symbolizing the greatness of our new regime, the prospect of prosperity......" Ma Qianzhu gestured, not knowing what words to use to describe it.

"Like Tiananmen Square?"

"Yes, but don't give the copy a day to come out."

"If you want me to copy it, I can't copy it. Yes. Mei Wan complained a little, "Where did you get so many resources." ”

"Make it as effective as possible. You can brainstorm ideas. ”

So in the evening everyone began to brainstorm. The structure of this large rostrum is naturally the usual appearance of the stadium rostrum, with a high platform and two wings of the grandstand that extends slightly lower. A rain eaves are set above the rostrum. It's traditional, but it's practical. However, this design is too ordinary, and obviously cannot meet Ma Qianzhuo's ideas.

But the news of this building got out. After that, many construction enthusiasts came to the construction company to offer advice. A variety of renderings have been released.

Zuihou put into the construction of a kind of neoclassical building. One. A huge masonry staircase, 300 meters long and 12 meters high, with a colonnade running the entire length of the staircase at the top. In the center of the colonnade is a huge wall of photographs used to hang the symbols of the regime, the national emblem, and the like, and 12 smaller rectangular walls are evenly distributed throughout the colonnade to hang flags.

At both ends of the steps, a square similar to the shape of a beacon tower is set. Shaped pedestal. According to the design, two huge torch cages will be installed here.

This design was modeled and brought to the Executive Committee meeting. The plaster cast caused an awkward silence at the meeting - the crowd, all of whom had seen the film of the Nuremberg Party Congress, immediately recognized it as a copy of the viewing platform at the Tzepelin Airport in Nuremberg, which had been designed by Dr. Speer.

All in attendance. They are careful not to mention the blueprint of the building. In fact, everyone loved the spectacular feeling of the Nuremberg Party Congress film, but they were afraid that once this layer was revealed, the universal fig leaf would force everyone to abandon it.

"It's spectacular." Ma Qianzhuo agreed, "But is the structure too big? ”

"It's okay, according to the size of this stadium, we can design the steps to be 24 meters high," Mei Wan pointed to the renderings hanging on the blackboard, "Now the steps are only 12 meters high, less than half." ”

Wen Desi also liked the design, it was indeed spectacular, and he already imagined what he would look like when he stood on the rostrum for a military parade and a speech: "If you want me to think it's better to be 24 meters, this length with 12 meters is a little shorter." ”

"The main reason is that the material labor is limited, so we can only reduce the scale a little." Mei Wan said,

"I don't think it's okay, it's a 100-year plan. There are also benefits to investing a little more. Wen Desi said.

"That's right. Just raise the height. Ma Qianzhu is very generous on this question, "What about building materials?" Looking at the effect, it looks like a stone, how many stone squares do you need? ”

"This can't be a pure stone building, there are not enough stonemasons, and although it is efficient to quarry with black powder now, it also requires human hands to polish and cut. Therefore, it is necessary to adopt a rammed earth structure with a simpler jishu. It is like building a city wall, and it is covered with stones. Mei Wan had been prepared for this question for a long time.

"What about the color of the stone? Can it be matched? It's best to make a near-white effect. ”

"The color of the stones mined in Bairentan is blue-gray, but we can paint it white with lime, and the effect should be okay."

"Weishenme to be painted white? The common people of this time and space can feel that white is fierce. ”

"Is it painted red like Tiananmen Square?"

"It doesn't match this style, it's ugly to death."

"I think it's best to paint it golden, shining, sacred gold altar."

"Golden is a blatant rebellion! Also, what are you going to do with this golden yellow? If it is not painted well, it is the same as the temple. What's sacred? ”

In the design adopted by Zuihou, it was decided to paint it white with lime water, anyway, the houses of the ancients were also painted white with lime water, and I haven't heard of what they thought was fierce.

In the official drawings, the large rostrum was stripped of the colonnade above. It was difficult to build such Roman columns in large quantities in Lingao. However, it was built with enough width to allow for future additions. The height of the entire building has also been raised to 18 meters.

Although the colonnade above is not built, the wall used to hang the coat of arms still appears in the official drawings. As for the flag-hanging walls, Mei Wan decided to temporarily replace them with wooden frames, each 12 meters high, for hanging flags, of course, only when the wind is relatively light, otherwise the flags will be blown up like sails.

Considering the typhoons in late summer and early autumn, the shelves are designed to be detachable and stored in the interior of the building when not in use - although it is a rammed earth interior, it also opens up some rooms and passages.

After the design was approved, Mei Wan began construction. One advantage of rammed earth structures is that workers don't need much jishu and can use ordinary laborers on a large scale. The Hakka people from Fujian generally have the habit of building tulou and are more experienced. Use these people as leaders of rammed earth. In cooperation with the peasants recruited from the commune and from outside, the project was carried out vigorously. At its busiest, there were nearly 1,000 migrant workers working on the entire construction site. There are also more than 200 people quarrying and cutting stones in various quarries. More than 100 people collect oyster shells and burnt lime on the beach.

In order to strive for progress, Mei Wan also used construction machinery to assist, and excavation, stacking and simple compaction were all used to work by machinery, which greatly improved efficiency.

Receiving the limitations of the stonemason's processing capacity and jishu level, Mei Wan found that some large and complex construction stonemasons could not be processed. The largest stone ever worked by the local stonemasons was the stone arch beams used to build bridges, and they were not made for many years.

"It would be nice if there were steel bars, and we could do concrete prefabrications directly." Mei Wan came back from the stockyard and felt very sorry.

"Now there is such a shortage of steel, the metallurgical sector is not willing to make steel bars at all." Yan Que Zhi said.

"How about making it out of bamboo?" Merlin said. He was born as a small construction worker. In the high-level Lingao construction company, it is natural that he can only act as a low-level engineering jishu personnel.

"Bamboo-reinforced concrete?" Mei Wan thought about it, he had indeed heard of this process, using bamboo instead of steel bars to make prefabricated structures. In the thirties and forties of the 20th century, it was popular for a while, and during the Great Leap Forward, in order to solve the problem of lack of materials, it also carried out a period in China.

"No, the yield strength of bamboo is much inferior to that of steel—" Bingfeng said quickly. He himself was born in steel frame structure, and of course he had heard of this crooked way. However, it has been abandoned by the construction industry for a long time, and it obviously cannot meet the requirements of use.

"How do you know if you don't try it?" Mei Wan thought that if Shiyan succeeded, it would be great news for both the construction company and the traverser - no more wasted timber making beams and floors.

"Boss, this kind of thing like cement prefabricated parts, once it collapses, it will kill people." Bingfeng bitterly admonished, could it be that the tofu scum project in the future generations has not made enough trouble, and it is going to a new time and space to toss.

"Bingjishu, this problem has been raised to an overall level, and it will not work to blindly pick the safety standards of the past time and space." Merlin said.

"What?! What are the safety standards of the modern past? "The ice and the wind are raging.

Mei Wan dissuaded: "Don't get angry, this is a jishu problem, let's just discuss it." He turned his head and asked Li Xiaolu, who was drawing a diagram of the overall structure on the side.

"Well, you've got a good idea." Li Xiaolu carefully sketched the drawings, "I studied planning and the environment, and I didn't understand the architectural structure. ”

Yan Que Zhi said: "Boss, you have to be cautious, the construction is a hundred-year plan, and once something happens, it will be stinking for 10,000 years." ”

Merlin was still calm: "The question now is to solve the problem of having or not having it, right?" There are a lot of projects to be started by the Executive Committee in the future, and it is not the way to always use wooden planks - there is not so much wood in Lingao, and it must be prefabricated boards. Since it is still unknown when the Ministry of Metallurgy will be able to produce enough steel bars, it is not bad for us to try it. If you succeed, the following things will be easy to do. ”

These words moved Mei Wan, and the temptation was too great. He made up his mind:

"Okay, let's try it out, starting with small pieces."

Most of the people in this Lingao construction company are from construction backgrounds and have some understanding of bamboo and concrete. Bamboo reinforcement as a substitute for steel has been a tempting topic for a long time, after all, the growth period of bamboo is fast, the price is low, and the processing is convenient, and it can save a lot of costs.

However, bamboo reinforcement has not been able to replace the steel bar, the main reason is that the tensile strength is not as good as the steel bar, and the most haode bamboo reinforcement material is only equivalent to 80% of the level of the steel bar, and most of them are only 50%. Moreover, the elastic modulus of bamboo bars is only one-tenth of that of steel bars. This shortcoming is quite fatal. Moreover, there are problems of corrosion, insect moth and difficult adhesion of concrete materials, and it is not so simple to use.

The first is to find the right bamboo tendon, there are many kinds of bamboo, but the bamboo that can be made of bamboo tendon concrete, basically concentrated in bitter bamboo, Mengzong bamboo and light bamboo, these three kinds of bamboo, the tensile effect of bitter bamboo is the best, the Japanese did a lot of bamboo tendon concrete tests during World War II, and think that bitter bamboo is the most suitable bamboo tendon material.

Bitter bamboo is widely distributed in China, and although it is not everywhere in Hainan, it is not difficult to find. The call was immediately made to the Forestry Department, which is part of the Ministry of Agriculture Committee.

"Want bitter bamboo? No problem, I'll send someone to harvest tomorrow. Wu Kuangming said on the phone.

"No, we will send the requirements for harvesting bamboo to your OA in a while, you must make it clear to the logging team members that they will be harvested exactly according to our requirements, otherwise it will be useless."

The raw material of bamboo tendon bamboo is very particular, first of all, it can not come from too fertile soil, too fertile soil in the bamboo wall meat is thick, soft, lack of elasticity. Bamboo joints are prone to blackening and breaking after harvesting – and they are the strongest part of the bamboo.

According to the experience of the Japanese, it is best to harvest bamboo from mountains and cedar trees and other trees, and the bamboo poles are high and straight, the bamboo joints are short, the walls are thin, and the elasticity is good. The time of harvesting should be carried out on a dry and moonless night, because the bamboo harvested on a moonlit night contains more water, and the bamboo juice has a sweet taste and is easy to be eaten by insects.

The harvesting age of bamboo is 5~6 years, too short and too soft, too long and gradually loses its oiliness and insufficient elasticity. Even the logging itself has a certain jishu essentials. I saw the materials that Luo Duo had found in the Great Library. Mei Wan smiled bitterly and said to Merlin: "This thing is not easy at all. ”

Merlin didn't have a score in his heart, seeing that this bamboo and concrete manual was so thick, he felt weak in his heart, and he was afraid that he would become the initiator if it was too complicated. But now that the work has begun, we can't lay soft eggs, so we have to make a confident appearance:

"The complicated formalities are indeed valid. Otherwise, there would be no point in writing such a book. This is the experience accumulated by the predecessors of engineering and construction. ”

The only part of the harvested bamboo that can be used as bamboo tendons is the part above the bamboo root in section 21, and the bamboo nodes are required to be dense and symmetrical, and there are no traces of decay and insect moth, and the harvested bamboo is sent to the wood processing plant in Bopu, where it is first moderately dried and mopped - not too dry, a certain amount of moisture must be retained, and then the anti-corrosion, waterproof and alkali-proof treatment is carried out in the chemical plant of Bopu.

Bamboo tendon because of the particularity of its plant, when pouring concrete, absorb water and expand, with the gradual drying of concrete, bamboo tendon shrinks and hardens because of the loss of water, and the contraction of bamboo tendon is greater than concrete and the speed of contraction is much faster, in this way, it will not take long, the bamboo tendon will be slowly relaxed and dragged away in the concrete, and the adhesion between the two is lost.

In addition to the problem of dragging water, bamboo tendons also face alkali corrosion. The Japanese Shiyan before World War II showed that the untreated bamboo tendons were eroded by alkali after 6 months in the concrete and completely lost their strength.