Kneel for 40 internship diaries. Sales kind.

It can be said that I was very depressed, because I found out how ignorant I was when I arrived at the construction site, especially the drawings. I just learned nothing at school for a long time, and I feel inferior when I think about it. It's noisy everywhere. I am very busy, so I am an idle person. Let's start from the beginning. According to the requirements of the outline, I'm going to familiarize myself with all kinds of machinery on the construction site today.

Of course, the first thing we see is the towering tower crane, which is the symbol of the construction site. There are three tower cranes on our construction site. Then you can see the steel bar cutter, steel bar bender, cutting saw, planer and electroslag pressure welder as soon as you enter the door. Workers (platemakers) also have toothless saws, and some workers still hold hand saws.

Today, Uncle Liu agreed to give us safety education tomorrow before we can enter the construction site.

July 65438, 2007

Today, Li Ge showed me the construction drawing and taught me the importance of drawing. "When looking at the picture, you should understand the column spacing and column grid size of the structure; Section, height and span of columns and beams; Dimensional relationship between retaining wall and column axis; The thickness of the plate and structural elevation, etc. Clear column longitudinal reinforcement strength grade, specification, quantity and lap requirements; Specification, spacing and strength grade of stirrups; The change of reinforcement quantity of each column and column; The reinforcement requirements of beams and the changes of reinforcement quantity of beams and beams in each layer; Reinforcement requirements of plates, etc. Understand the strength grade of concrete used in each layer and other special requirements such as impermeability, corrosion resistance and anticorrosion. The review of drawings is mainly to prevent some contradictions in drawings from affecting construction, such as whether there is contradiction between building elevation and structure, whether the installation of pipelines has an impact on structure, and whether the design of drawings can be realized. I'm completely at a loss.

July 18

Today, everyone came early and planned to receive safety education. We came to the technical department, and Liu, who is in charge of safety, explained it to me, mainly talking about the danger of electricity, the danger of hanging objects and the danger of soles of feet. Of course, we are required to wear safety helmets when entering the construction site, pay attention to the slippery soles of our feet, and pay attention to the meeting. The requirements are quite detailed.

After discussion, several of us are going to operate first, and we have a general impression, which helps us to study more purposefully. There are not many workers, but they are all busy. I thought they were generally unwilling to talk to us students, but I was wrong. They are very generous. As long as I have any questions, they will be interested in answering them. The first time I heard from an old steel worker a common specification for a construction site, 03G6544.

Actually, I really can't understand what's on it. I'm going to look at the drawings tomorrow and get familiar with the contents of the drawings and how they are implemented in practice. Mainly structural drawings.

July 2009, 65438

When I asked the engineer for the drawings, I found that all the drawings were flat. Although they are exactly the same as those in the book, I still can't understand them. Let's talk about specifications first. In fact, the instructions are not very thick, but they are still difficult to understand. The engineer said that we would take the drawings to the construction site, and then it would be clear. I think so. Which engineer is really generous. When he arrived at the construction site, he took the drawings and instructions. Looking at the reinforcement of the frame beam, where the support is a column, how much additional reinforcement is needed? The first row is one-third of the static span. The second row is a quarter. There are also the location and number of encryption stirrups, and so on. For columns, it is mainly the encryption of stirrups. And the connection with the main stressed steel bars. According to the drawings, electroslag pressure welding is adopted, but it is changed to mechanical connection through negotiation. Adopt straight thread sleeve system. It is said that the first-level connection can be realized, but I haven't seen how they are connected and what tools they use. Let's take a look alone tomorrow. The reinforcement of the floor is the same as that in the book, and it doesn't look troublesome, but the floor hasn't been constructed yet. Come back in a few days for construction.

July 20(th)

When I entered the construction site, the first thing that caught my attention was the 80-minute-long steel mesh exposed on the floor, which was obviously the steel bar in the column. I have only learned bending stirrups and abdominal tendons before, and I have never thought about how to connect them. I didn't know it was fixed with heel-to-heel steel wire until today. I happened to see a man coming with a steel wire to tie it. Suddenly, he picked up a steel wire about 30 cm long, folded it in half and placed it at the joint of two steel bars. In the blink of an eye, he has pierced more than a dozen places with his homemade gadgets (which seem to be made of φ6 steel pliers). Don't look at this humble gadget, it is many times faster than using pliers. A convenient tool can improve efficiency. I found many homemade tools on the construction site, which are much more comfortable to use.

July 2 1 day

When asked about the connection mode of straight thread sleeve, Xugong said that he was doing a test piece outside to see. When I came out, I saw three young men in their twenties doing it. Because there is not much age difference, it is convenient to talk about it. Originally, it was cut directly from the site, but it was more troublesome and affected the construction progress, so it was changed to them, but I guess it was because it could not meet the requirements. Some things, I found that the supervisor and Party B have * * * knowledge. They buckled the steel bar directly with the buckle machine, and did not ask the chief engineer according to the pier thickness first, as the book said, telling me that this can meet the requirements without pier thickness. The three coolies didn't use the torque wrench mentioned in the book, but just used an ordinary wrench. That's what they said A person who weighs more than 100 kg can definitely meet the torque requirements. What I want to say is that torque is not necessarily good, but the chief engineer said, don't argue with the workers. I am speechless. But I found that I had to do a free fall after I finished. It turns out that if the connection is good, it will be crunchy on the hard object, otherwise it will be muffled. This is a simple identification method. Reminds me of a sentence, workers have their own methods.

July 22(nd)

I came late today and just went to someone else's construction site to pour concrete. I feel that I have seen this scene before, but now the distance is short. Look carefully. They belong to the concrete company and Zhangjiakou No.1 Construction Company. I used to think that someone in the pump truck was busy, but now someone in their company is using short-range remote control technology to control the pouring place of concrete at any time, so it is not difficult to control the landing point. Now many people, including their concrete companies, construction companies and supervisors, are also there to control quality. Two workers are also from the concrete company. They do this because they have experience and can guarantee the quality well. Others have been vibrating with vibrators, but they never touch steel bars or wooden boards, which is more conducive to quality assurance. I found that concrete trucks drove to concrete one after another.

July 23(rd)

It's raining today, there is no work, and there is a lot of water on the construction site. It is estimated that you can start work in the afternoon.

July 24(th)

I don't feel well today. I didn't go to the operation surface, but went to the experimental building. The foundation of the experimental building has just begun to be dug. However, it has just rained, and it is not so rustic. This is a large-scale excavation machinery operation, just an excavator. I went back to check the drawings. The frame structure and foundation are arranged in a plum blossom shape. Independent foundation under column. But now I just started to break ground, and I feel as if I can't finish the work. Just finished piling.

July 25(th)

I saw a scene that shocked me this afternoon. I saw a worker who didn't take any safety measures walking while working on the beam. The beam is suspended and curved, which is the shade in front of the main door. I don't know exactly what to do. I wanted to ask, but I was afraid of distracting the workers. No engineers around asked. But I'm sure it's illegal

Similar accidents happen every year, causing people to lose their husbands and brothers. In the eyes of some people, their lives are worthless.

July 26(th)

Today, I passed the dormitory of migrant workers and took a look. It turns out that in addition to those engineering skills, there are also these migrant workers who have made great contributions to the construction of the motherland. But their living environment shocked me. The lights inside were very dim. They couldn't use high-brightness lights, because the site managers wouldn't let them use them. Even if they paid for it themselves, they would never give up. Their clothes were hanging inside, and when I looked in, I heard a child's voice. At the age of children, they should be in nurseries or kindergartens, but the children of these migrant workers do not have this condition. Running around the construction site are all Sichuanese. It's really hard. I think this is the representative of migrant workers in China.

July 27(th)

Today, I noticed that a white plastic pipe was inserted into the shear wall at intervals, and it really happened.

In some specific locations, a piece of styrofoam tightly wrapped with yellow tape will be embedded in the wall. These things are used for drying.

What is this? Manager Zhang told me: "The function of the white plastic pipe is to make the opposite bolt used to clamp the formwork available when supporting the formwork."

Concrete can be pumped out smoothly after solidification, and styrofoam is the space reserved for the wire box. "oh? this is not

It is the same as the styrofoam that is tied to the steel bar in the reinforced concrete experiment in school and used as the reserved space for sticking the strain gauge.

What? "won't this affect the structural strength?" I asked, and Manager Zhang said, "It doesn't matter, as long as it doesn't exceed 20 cm."

Party, you don't have to consider the influence on the structural strength.

July 28(th)

Today, when I was bored looking at the drawings in the technical department, I asked Gong Li, what are you looking for? Gong Li smiled and agreed. He opened the drawings and asked us to help him calculate the masonry quantity of the first floor and told us the method. In fact, they have already figured it out, and we are just helping him get back together. It's easier said than done. I mean, how can he laugh? This can't be calculated as carefully as geometry, as long as there is no big discrepancy in general, these discrepancies will be made up when the technology is lost. The result of the morning's hard work was ok. Li Ge said, OK, do it well in the future.

July 29(th)

Today is still cloudy. The steel bars in Building 6 have been tied. I didn't see the right one last time, but I can see the left one this time.

First of all, scaffolding with a certain height should be set up to support the inclined beam in the stands. In order to fix the inclined beam in a proper position, small bars should be set at different heights along the scaffold. First, put the two ends of the upper reinforced bar of the erection stud on the two ends of the beam, and then put the stirrup on the lower reinforced bar. The part of the steel bar that sinks due to its own weight in the length direction should be cut off with a crossbar, and the upper steel bar should be placed on the scaffold. This can resist the deflection caused by self-weight. The lower steel bars and waist bars are fixed in the proper position of stirrups with iron wires.

At the same time, before and after binding, battens are placed under the lower reinforcement, which is convenient for the lower reinforced bar to be bound at the appropriate position of stirrup, and the battens should be removed after binding.

30 July

I planned to visit the construction site today, but it rained again. It's really boring I had nothing to do, so I read a newspaper and wrote down interesting content. An article in china construction news said that some architectural terms were derogated and used in daily life. After reading it, I have a correct understanding of the original intention. Now the excerpt is as follows.

1, intrigue. This is the grandeur of Epang Palace described by Du Mu, a poet in the Tang Dynasty, in Fu to Epang Palace: "On the back of the cloister, the eaves are elegant, each holding its own terrain and intrigue." The "heart" here refers to the center of the house, the "bucket" refers to the combination, and the "corner" refers to the cornice. The word means that the eaves and corners of the house are connected to the center of the house like hooks, and the high corners are facing each other, such as fighting each other, vividly showing the staggered echo of the building structure, exquisite and chic. Now people use "intrigue" to describe people's intrigue and struggle with each other.

July 3 1 day

The concrete had to be poured again, and the workers were busy installing the formwork, so I asked the site supervisor what he thought and whether they were good or not. He said it didn't look technical, but it wasn't. It takes three years for a good template worker to learn. He asked me to have a look at the construction manual. It turns out that this article also has a lot of content: it is excerpted.

1. Wall and column formwork installation:

Pop up the edges and control lines of wall and column templates on the base, and then put the templates in place. Temporarily fix the template first, adjust the template mouth according to the template control line, and do temporary fixing. After the formwork is reinforced, adjust the verticality of the formwork by supporting the messenger wire, and finally reinforce the formwork. After reinforcement, check its position and verticality for the second time to ensure the accurate size.

2. Beam and plate template installation:

(1) Pop up the elevation control line (line 50) on the wall and column, and according to the elevation control line, pop up the lower elevation control line of beam slab template on the wall and column.

(2) Placement of beam-slab formwork columns: The columns of beam-slab formwork are installed in strict accordance with the designed spacing and position, and are in the same position as the lower columns, with 50 planks under the columns.

(3) Beam slab arching: firstly, adjust the supporting height at both ends of the beam and around the slab according to the design elevation, and then draw a horizontal line; According to the springing height (1 ‰ ~ 3 ‰ beam span) and the position of each intermediate support, the springing height of each support is calculated. Finally, after adjusting the height of each support, lay the beam bottom formwork or the main keel of the floor.

August 1

Concrete is being poured again today, which is similar to what I saw last time. But it rained last night, the road was muddy, and there were small puddles everywhere on the construction site. Unfortunately, I don't have a pair of rain boots, and there is mud everywhere. But today, I still got something. I saw a technician yelling at a worker. It turned out that he was sprinkling water on the floor that had just finished collecting noodles. In order to make the surface look smoother, I rushed over and asked. It turns out that it is easy to change the moisture content of concrete, which leads to the decline of floor strength and affects the quality of the project. I thought these proportions could only be used in experiments, but we should also pay attention to them in the construction site.

August 2 nd

The experimental building is leaving today, and I went with them. I didn't learn enough at school. They also used a level and a steel rule. I think it's complicated. In fact, they are very simple to operate, mainly to set out the outer contour of the foundation first, and then use the steel ruler as the standard. Sprinkle white ash on the ruler so that the white ash is a straight line on the ground. Occasionally use strings. Foundation excavation will be carried out tomorrow, and preparations should be made today.

August 3 rd

Today, when I was digging, I went to have a look and dug up a lot of lime-soil piles I used to hit. Before, they were really strong when I stepped on them. I didn't expect it to rain heavily these days, and these guys are so well maintained. I went back and looked at the drawings. It turns out that after the excavation, there is still a layer of lime-soil cushion under the foundation. The engineer said, I don't know what the design unit thinks. In fact, no matter how thin the cushion is, it still needs good technology. Otherwise,

August 4 th

Today, the teacher came to check on our internship. It's a female teacher. I took her to the south area of the experimental building, where the static pressure pile experiment was being carried out. It looks high in technology. A large concrete test block was pressed on the pile. Listen to the teacher, which pile head is equipped with a hydraulic jack to adjust the pressure of the test block, which is generally loaded in ten stages. The displacement is observed by computer, and then the experimental results are highlighted. The experiments done in this laboratory are similar. Let's ask the operator over there about the specific loading situation.

August 5th

It rained again today, and it rained heavily, so I had to study theoretical work in the conference room. Gong Li found me a building manual, let me have a good look. Masonry includes leveling, setting-out, bricklaying, erecting bark tree poles, hanging wires, laying ash and bricklaying.

I also learned these techniques in architecture class. What I have to do now is to look at them carefully and see their similarities and differences with our books. Among them, I think copying is more detailed than what we have learned. After laying the foundation or each floor, check the axis and elevation of the masonry and level it with cement mortar or fine stone concrete. The axis of the bottom floor of the building can be laid with twine according to the positioning nails on the gantry plate, hung with offline hammers along the twine, put the central axis of the wall on the foundation surface, pop up the vertical and horizontal wall sideline according to the central axis of the wall, and reserve the position of the door opening. The axis of each floor can be measured to the floor in advance, or hung with a wire hammer to aim at the wall on the outer wall. Axis putright is the key to pay-off, and it must be checked with steel tape measure according to the size required by the drawing. Then press the center line of the floor wall, pop up the wall sideline, and draw the position of the door and window hole.

August sixth

Today can give me an eye-opener In the experimental building, due to the shortage of manpower, Deputy Manager Zhang of the project department personally started digging and backfilling, which shocked all of us and frightened any contractor. He dare not deduct his money. Of course, we interns also picked up shovels and began to work. I didn't expect the manager to do this again, hehe. Later, I heard the manager say to put some pressure on him and tell him not to listen.

August 7

The internship is almost over, and school will start soon. There are many assignments, such as special reports and practice reports. It's time to write down the general situation of the project for later use, as follows: