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Chapter 1456 Cable Bridge

This old man Feng Quji is probably really going to get old!

Chen Xu's face twitched slightly a few times.

Even if the capital moves has been determined, it will take at least three or five years to complete this task.

Moreover, even if many yamen are repaired, it is impossible to move them all over for a while. It will take ten or eight years to complete.

What's more, even if the new capital is built, Xianyang cannot be abandoned. A large number of residences of princes, princes, ministers, and nobles and wealthy merchants who moved there at that time still live in Xianyang. Various commercial entertainments are more prosperous and lively than the new capital. This situation will not change in the short term.

Just like Yongcheng, it has been more than a hundred years since the capital has been moved to Xianyang, but there are still many people living in Yongcheng. There are a large number of business travelers traveling between Xianyang and Yongcheng every day. Moreover, Xianyang and Xinducheng are only separated by a river. After the renovation, the exchanges between the two cities will definitely remain frequent and lively.

"The construction of the new capital has not yet begun, so this congestion must be resolved first. You can quickly prepare the manpower and materials to prepare for the construction of the second bridge. This marquis from Feng Xiang will go to discuss it!"

"Yes, since the Marquis spoke, we must not dare to delay. Let's make arrangements as soon as possible after the official returns!" Zai Hong, as a die-hard supporter of Chen Xu, agreed without hesitation.

"Mr. Marquis, the so-called "meaning of power" is urgent. Even if we prepare to build the Second Bridge immediately, it will take about half a year from the start of construction to the passage. There will be no improvement in the past six months. In fact, it is useless for the Marquis to be anxious at the moment!" Qi Dang, the commander of the Inner Historian's Office, bowed and said.

"Half a year is too long. My husband has a quick bridge building plan, which does not require a lot of concrete, but requires a lot of steel and wood. Do you have any people who know how to build bridges?" Chen Xu looked at a group of officials following Zai Hong and Qi Dang.

"Mr. Marquis, the subordinate is Yang Bo, the Stone Office of the Water Resources Department of the Ministry of Works. He has always been in charge of the construction and supervision of the ditch bridge. He knows a little about the construction of the bridge!"

"Xiaguan has participated in the construction of the Weihe Bridge and has also a little understanding of some bridge construction and structure!"

"Xiaguan is in charge of ditches and dam construction, and has also presided over the construction of bridges..."

Four or five officials stood up in succession and said that they would build bridges.

"That's good. I have a completely different bridge building plan from the current concrete bridge, but it has not been verified. Since you know how to build a bridge, I will say it out and refer to it and see if it is used. Follow me to go under the bridge to see!"

"yes!"

A group of people surrounded Chen Xu from the bridge to the bottom of the bridge, standing on the river beach to watch, the structure of the entire bridge was completely visible.

"Please look, if you want to build a concrete cross-river bridge, the first thing is to build the guide bridge on both sides and the piers in the center, so that the bridge can be built. One advantage of the concrete bridge is that its structure is simple and durable. The disadvantage is that it is slow in construction and takes a long time to fully solidify to meet the usage standards. The temperature in winter and spring is low, and the concrete drys slowly, so it takes longer. Benhou feels that using a large amount of steel and wood to build a bridge mixed with steel and wood, there is no need to wait for the concrete to dry out. As long as the construction is completed, it will pass. Look at the structure of Benhou's new bridge..."

Chen Xu used his feet to flatten a piece of sand, then squatted down and picked up a branch to draw a sketch of a cable-stayed bridge.

"My husband's idea is to build two solid bases in the narrowest place of a river channel with reinforced concrete on both sides. Two steel towers are built with steel on the base, and chains are connected together between the two steel towers. Then, with two chains as load-bearing, steel beams are hung under the steel cable, and then with these steel beams as the basis, the bridge is connected with wood on top. After completion, thick wooden boards are laid as the bridge deck..."

The structure of the entire bridge is very simple, just a cable-stayed suspension bridge, which eliminates the process of building a bridge pier in the middle of the river. Although the picture is sloppy, the group of officials watching, except for the inner-shistor Ling Qi Dang, almost all understand engineering construction, and are not unfamiliar with bridges. After Chen Xu finished speaking in a few words, everyone's eyes were bright.

"The method of building a bridge by Marquis is bound to be feasible. As long as you master the span size, carefully calculate the length and weight of the bridge body, and create two suitable load-bearing chains, it will definitely work..."

"That's right. As long as the steel towers on both sides are repaired, there will be no problem in ensuring that the steel towers are stable enough..."

"And there is no need to wait to build the steel tower base. While building the steel tower base, you can start to build steel towers, chains, steel cables, steel beams and prepare various woods of appropriate sizes and lengths. Just wait for the chains to be installed, perhaps the bridge will be completed within a few days, and it will be almost passable on the day of completion..."

"The Marquis is indeed as magical as ever. You can imagine such an incredible way to build a bridge!"

During the discussion and praise between Zai Hong and a group of officials, Chen Xu dropped his wooden stick and stood up and said, "Some of the issues you mentioned just now are very critical. The core of this cable bridge is two steel towers and the chain of load-bearing. Therefore, it is not negligible and must be designed and built strong enough. Although the bridge is built quickly, it requires more careful calculation and precision design to ensure that no problems occur in each case, so that the safety standards can be met. The bearing capacity of this bridge is definitely not as strong as the reinforced concrete in front of you. Fortunately, it is only used as a supplement at present. After completion, heavy trucks can still be arranged to pass through the first bridge, and light traffic and horses can be diverted to the second bridge, which will greatly alleviate the current congestion!"

"The Marquis' arrangement is very reasonable, and the officials think it is feasible!" Although Qi Dang did not understand bridge construction, since a group of officials who could build bridges were discussing so lively, at least there would not be too much problem in design.

"Marty, the lower officials think it is feasible!" Zai Hong also bowed and approved it.

"That's good. This is the design idea of ​​this bridge. After you go back, you convene the craftsmen and craftsmen from the Ministry of Industry and the Academy of Sciences for careful demonstration and calculation, and establish the project as soon as possible. Later, I will discuss with Feng Xiang. The morning court will report to Your Majesty tomorrow. December will be in a few days. I hope that the bridge will be able to be completed before the end of February. Although the time is a bit urgent, the difficulty is not very high. I will ask the experimental factory of the Academy of Sciences to cooperate with you. I have already roughly estimated that although the use of steel has increased slightly, because the cement consumption has been greatly reduced, it should be fine to control the cost of the entire bridge to within 10 million yuan. It is more than half cheaper than the cost of this bridge at the beginning. It is absolutely cost-effective. You can do this as soon as possible. I will leave in advance!"

After Chen Xu finished speaking, he was too lazy to squat under the bridge with a group of old men, and quickly climbed onto the bridge with his hands behind his back, kicked and walked away by the car.

Zai Hong and Qi Dang looked at each other, stared at each other with big eyes for a while, and finally turned to look at the group of officials who came with them, Qi Dang said, "Do you really understand when you wait?"

"I understand, understand, please rest assured. What the Marquis has already said is very clear and clear. The bridge is simple in structure and does not require concrete molds. It only needs to calculate the length and width of the bridge and the position of the steel cable and beams. Then all preparations are carried out in parallel. There is no big problem to complete within three months!" A group of officials who accompanied him nodded.

"Huh~"

"That's good!"

Zai Hong and Qi Dang breathed a sigh of relief at the same time, wiped the sweat from their foreheads with their sleeves, and turned around, and took a group of subordinates back to the government office to arrange the bridge repair task.

This bridge should have been built a long time ago, but Chen Xu was not in Xianyang. Feng Quji's main energy was on various government affairs. Moreover, because the First Emperor had to review a large number of memorials that Chen Xu should have reviewed every day, and because he was not in good health, he was not in the mood to care about the bridge repair. Other officials from the three provinces and six ministries were too lazy to speak out, so this matter continued to be delayed. Until today, Chen Xu couldn't help it. He got it done in a few seconds and designed a new and fast and simple method of building bridges.

This cable bridge and suspension bridge structure are somewhat similar, but in terms of strength, it is impossible to build successfully without cement and steel. However, at present, whether it is officials, craftsmen, or people in Daqin, they are no longer primitive people who only play with mud, wood and stone a few years ago. In the eyes of all officials who know how to build bridge projects, this kind of bridge is much simpler and more convenient than concrete in terms of structure and construction difficulty. As long as the measurement and calculation are more accurate, all work can be carried out at the same time, and finally assembly is successful. The craftsmen of Daqin have a strict tradition, that is, the overall cooperation.

In order to eliminate the legacy of the six countries, Li Si implemented a complete set of unified laws. The same carts and tracks, books and texts are not just for fun. Except for pots and pans, all tools and weapons are of unified format and standards. The accessories on carriages and crossbows are even more required to be unified, so that they are easy to repair and replace. Moreover, each accessories must be engraved with the name of the craftsman. If it is not in compliance with the regulations, it is responsible. If the light is fined, it will be displaced. This also made the craftsmen of the Qin Dynasty form a craftsman spirit engraved in their bones, which is strict and serious, because if they are not strict and serious, they have been removed.
Chapter completed!
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