Engineering for Life

Volume I

Chapter 36 Precast beam yard construction

The path of life will meet shapes. Hue. People who are sexually upheld have different principles of life, so their handling methods and opinions on the same incident are naturally very different.

As long as it does not violate legal principles and universal values, there is no need to distinguish between you and me, and there is no right or wrong in many things.

No one dares to, and no one can guarantee that what they know and do is right, and in many cases, seeking common ground while reserving differences is the best way to deal with it.

Since each of us is not omniscient, it is better to be less self-righteous and self-righteous, and admitting our mistakes will not be underestimated, but rather an improvement in our attitude towards life.

People who think very highly of themselves are actually a joke in the eyes of most people, and you know and grasp a little bit of the star, and you are proud of it, for the heavens and the earth, the sun, the moon and the stars, it is simply negligible, and you can't even know the whole of an ant.

Some people will say that knowing the whole of an ant is useless to my life, but in fact, this kind of thinking is really very wrong, since you don't know all the ants, how can you know that it is useless.

Life is a process of continuous progress, there are many ways to progress, and every Hamlet is different, and you and I are just one of them.

This life is lonely and boring, and it is born with a utilitarian heart of striving for fame and fortune, but for everyone we meet, we cannot simply distinguish between useful and useless with a utilitarian heart.

Useful people may not be able to solve your urgent needs, useless people may also be able to send charcoal in the snow, treat friends with a utilitarian heart, their friends are treated with a utilitarian heart, treat friends with a gentleman's heart, and their friends treat them with a gentleman's heart.

In life, the utilitarian heart is the most adult, and it is also the most harmful!

In less than a hundred years, all the fame and fortune you carry with you can only be turned into a cup of loess, and it can be regarded as a creation if you can have a few friends who go to the grave and cry sincerely.

-------------------------------------

After breakfast, I went to the office and touched Luo Bing, and learned about the recent to-do list, or how to say that Lin Yun is a bastard, he is not in these days, Luo Bing is on top, and almost all the work he left behind has been done.

The obstruction was solved perfectly, although it was the credit of the command, but it was not solved anyway.

The stone concrete retaining wall on the slope next to the temple has also been poured.

The matter of the material ledger of this bid section has been fully verified, and there must be small flaws, but compared to other bids, it is already the best.

Someone in the headquarters even offered verbal praise, according to that meaning, this is the work of the engineering quality inspection department, and according to reliable sources, Luo Bing and Lin Yun will definitely be nominated for the year-end outstanding individuals selected by the owners this year.

For Lin Yun, this is the feeling of being hit by a pie while walking on the street.

The thorny problems have been solved, and they are still solved during the holiday, it seems that this holiday is really worth it, but Lin Yun has no sense of crisis at all.

This work depends on daily accumulation, this is what Luo Bing usually does meticulously, everything is well documented, at a glance, if even this kind of excellent colleagues are treated with jealousy, it is indeed a bit too villainous.

Ledger management is a science, not to mention real records, many people can't even make up fake ones.

In fact, all the ledgers on the construction site are the same, and it is really difficult to deceive, and each ledger can truly reflect the actual situation on the construction site.

Don't believe it, in the eyes of those who understand, just compare the various ledgers of a construction site, and you will immediately know whether the ledger is true or fake.

The logic of the ledger is very important, the time logic of the construction ledger and the material ledger, the time logic of the construction ledger and the mechanical use ledger, the time logic of the construction ledger and the barometer, and the time logic of the test and sampling ledger and the construction ledger or the material ledger.

Sometimes the construction unit in order to facilitate the improvement of some of their own quality inspection data, will modify the construction ledger, but the whole body is involved, a modification of all the ledger must be modified, the more the more the problem is modified, the more holes, full of loopholes, not only there will be time logic problems, but also the problem of process connection, in the end even self-justification can not be done.

As a simple example, taking the barometer and construction ledger as an example, it is very likely that one day the rainstorm will pour, and the construction ledger and various construction records or supervision records are pouring large volumes of concrete, which is an obvious loophole.

When nothing happens on the construction site, no one cares about you.

Once something goes wrong, all of these will be exposed and will not stand up to verification.

Instead, it leads to a series of unnecessary troubles.

There are those who are responsible for the improvement and management of the internal data of the project, and they must faithfully record all kinds of construction ledgers and original records, and do not easily modify the time.

Once this kind of thing is modified, it marks a certain point in time after you modify it, and all the materials and documents that have completed the signature and date confirmation have become waste paper.

There are a lot of people in this world who think they are awesome, and there are many people who think they can do it perfectly, but if you meet this kind of person, and you send him to me, I will find out that I don't even know his mother.

Why is it that once such and such problems arise at a construction site, the headquarters and the higher-level competent departments first check the various materials of the construction unit?

Auditing, auditing, not necessarily the accounting book, but more of a variety of ledgers.

The four marks of the roadbed are planted on this, and people go to the problem with the problem, no matter how self-righteous you close and cover up, it is in vain.

Cutting corners for hundreds of tons of steel bars, what will happen to them in the future, is still an unknown, it is not good, some people are imprisoned, and economic losses are secondary.

As for how to deal with the two people who have slipped away from the first director's office, there will definitely be results, it is only a matter of time now, everything is being verified, and if there are results, there will naturally be news.

After meeting with Luo Bing, Lin Yun was ready to go to the construction site, and in the past two days, after completing the measurement and site leveling work of the precast beam yard, the young men Wang Fei and Zhang Hao had already gone out first.

Most of the large-scale precast beam yards of high-speed projects cover an area of 15,000 square meters to 25,000 square meters, and the choice of site size is generally related to the type and quantity of beams and slabs, and also has a certain relationship with the construction period.

The construction period is short, the types and quantities of beams and plates are large, the beam yard starts early, and the beam and plate construction area and beam storage area are large, so the beam yard covers a large area.

The construction period is long, the type and quantity of beams and plates are small, the beam yard starts relatively late, and the beam plate construction area and the beam storage area are small, so the beam yard covers an area relatively small.

The beam yard construction area is generally composed of three parts:

1: Rebar storage and processing plant

As the name suggests, it is a place where steel bars are stored and processed, as well as steel strands and anchors and prestressed channel bellows, and the general requirement is a closed workshop with ground hardening, and basic work such as steel bar cutting, cutting and bending is completed in the workshop.

2: beam and plate reinforcement installation area

Now the standard chemical site construction, the general steel installation area requires the use of tire frame, tire frame is also an operating table, a prefabricated beam plate all cut steel bars on the tire frame assembly and welding forming, and finally by the gantry crane hoisting to the pouring area pedestal.

3: Beam and slab pouring area

It is the place where the prestressed channel bellows is finally positioned and fixed on the basis of the steel bar, and then the concrete is poured by clamping, because the length, size and weight of each kind of beam and plate are different, and each corresponding beam and plate must be built with 3-5 pedestals.

And this kind of pedestal is used to place the steel bars and formwork and complete the final concrete pouring of the beam slab, do not think that the beam slab is so simple to complete the concrete pouring.

Because the beam and slab of the bridge need to carry a large number of heavy-duty vehicles for decades according to the design life requirements, it is not completely stressed by steel and concrete, but mainly by prestressed steel strands.

Many people will feel unfamiliar and difficult to understand the prestress, the popular saying is to apply a reverse force to the beam plate in advance, so that this force to resist the pressure of various vehicles in the next bridge operation, this pre-applied reverse force is prestress.

The prestress addition is generally to make the beam slab up to an imperceptible camber, and this work is generally to wait for the beam slab to be poured concrete, the concrete strength reaches more than 75%, from the bending pre-embedded in the hole inside the beam slab through dozens of high-strength steel strands, and this bending and winding hole is not set up at will, is determined by the design unit through a large number of mechanical calculations and practice.

The steel strands are all worn, and the steel strands are stretched to both sides of the beam plate at the same time through intelligent tensioning equipment, and then the force specified in the design (how many Newtons) and the length of the design specified in the stretch (how many mm, that is, millimeters) are reached.

Once the value specified in the design is reached, the holes at both ends are fixed with anchors that have passed through the steel strand in advance, and then high-strength cement slurry is injected into the hole until all the holes are completely filled.

At this time, the high-strength steel strand plays the role of a spring, because of its high-strength spring action, the steel strand produces a huge inward contraction force on the preset camber of this beam plate, which is prestressed, that is, the principle of force on the prestressed beam plate.

Imagine the clothesline at home, the tight clothesline is not hanging something on the top will not be easily humped down, the inside of the bridge is dozens of such bundles of high-strength steel strands that are as tight as the clothesline, but it is not the same as the tight clothesline, because this tightness is done in the curved holes, and then wrapped in high-strength cement slurry, and then the external reinforced concrete, which is all the prestressed beams and slabs.

Prestressing is the top priority of the bridge, is the guarantee of quality, to someone in the future to contact whether it is the owner or the construction unit of the management post, you can go to the site to experience it, but there is one, in the process of stretching the steel strand, do not stand to the corresponding direction of the hole at both ends, the steel strand in the process of tensioning, once there is a slip or even break, the huge force that ejects out is not your flesh and blood can resist.

Do you think, if you have ordinary strength, can you stand up to a heavy-duty vehicle that has been going on for years?

There is no injury to say, that is certain death, the only data for reference, is the degree of mutilation of the body, now most of the construction site for safety, when the steel strand is stretched, both ends are set up with huge protective plates, what you have to do is never go to the area between the protective plate and the steel strand.

In fact, all the operations related to machinery on the construction site, you look at the long-term operation of the skilled workers and the supervisors on the side, where he stands, you had better stand beside him, not to mention absolute insurance, but greatly reduce your chance of being injured.

The last part of the beam field is the storage beam area, a color of the transverse arrangement of the concrete pedestal, and then complete all the work of the beam plate hoisted to the stock area for storage, the storage time of the beam is generally controlled at 15-30 days, the hollow slab shall not exceed 60 days, the T beam shall not exceed 90 days, and the detection of all parameters can be transported to the bridge construction site for installation up to 100% of the design parameters.

Lin Yun is now standing on the planned beam field, at this stage, in addition to soil or soil, there are a few piles of gravel like a hill, but the site leveling has not yet reached the flatness of the beam field construction, so it has not been laid for the time being.

Of course, you can also lay down the gravel in a daze, but when you pour concrete, you will find that some places are too thin, some places are too thick, the original 3000m³ of concrete, you poured 4000m³, for you like an excellent employee who overfulfilled the investment task, well, your boss will definitely reward you with a one-way ticket home.

Cost control is always the theme on the construction site, the most bullish construction management personnel is not how much materials are saved, not how much more is used, but how many materials have just been used, with a very cliché words, just right, which is also the greatest embodiment of your management level and technical level.

Of course, save a lot, the boss of a private company must like you very much, and you have a foothold, but as an engineer and technician, once there is any problem with the quality, you have your share in prison and sentence.

Construction according to the drawings is the duty of engineering and technical personnel, and it is also the ethics of engineering and technical personnel.

Zhang Hao and Wang Fei are now measuring the flatness and elevation on the site of the planning beam field, because the site is huge and wide, so the excavator driver is also on the side, each measurement point, insert a small bamboo stick, mark on the top, and explain to the driver whether this area should be filled or dug, how much should be filled, and how much should be dug should be dug up.

In this way, it is the daily life of the construction site, as an engineer, my favorite rhythm is that everything is business as usual, and there is nothing.

Lin Yun lit a cigarette, stood far away and watched Zhang Hao and Wang Fei busy there, and felt very comfortable in his heart, the most comfortable thing in the world is nothing more than watching others work.

Of course, for technical management posts, you can do nothing, but you must be proficient, otherwise if you catch up one day, you will not be a little too much.

This grandson didn't stay here for long, and the supervisor came, and the secretary who lived in the project department and another supervisor seemed to be called Gou Zhengda, Lin Yun almost couldn't hold back when he heard this name for the first time.

Gou Zhengda, Gou Zhengda, TMD Isn't the dog really big, this grandson weighs between 160-180 catties, this is what he said, according to Lin Yun's visual measurements, this animal weighs between 180-200 catties.

Chubby, less than thirty years old, about 172, with glasses, according to Lin Yun's contact a few days before he asked for leave, this grandson is not only overweight and extraordinary, but also extraordinary in terms of professional skills, compared with most of the bastard supervisors, this person stands out from the crowd.

I heard that this person was originally a leading state-owned enterprise in a certain place of roads and bridges, and it seems that he also passed the second-level construction engineer of highway engineering, which shows that the supervision practitioners are not all wine bags and rice bags, and this industry that Lin Yun does not look at is actually a hidden dragon and crouching tiger, and even Lin Yun has encountered a supervisor who is less than thirty years old, and has passed the first-level construction engineer examination, and the first-level construction engineer before the age of thirty is not good, and the cow is not assimilated in the supervision environment.

Some people regard the supervision industry as a place for the elderly, eat and drink every day to pass the time, and also make some oil and water, and some people take the supervision industry as a place to learn, because of the abundance of time and relative freedom, people can easily earn wages and take down one after another.

It can be seen that it is not the problem of the industry, the problem of the supervision industry is still a human problem in the final analysis, many new supervisors, not thinking about how to learn professional knowledge, but thinking about how to go to the construction site like those old fritters.

Even in the supervision industry there will be some inexplicable comparisons, mixed with the wind and water, today the team boss please eat, tomorrow the team boss please eat, today this cigarettes, tomorrow that cigarettes, this is called mixing well. Those who do not like to eat, drink, or receive gifts are considered to be poor and to be despised.

There are also some strange people in the construction unit, the supervisor does not card him, does not pinch him, he will also feel that the supervisor is not a fool, it must be too poor professional level, and in turn will not respect the supervisor.

Therefore, the reason for the party has created the chaos of today's construction engineering supervision industry, the so-called freezing three feet is not a day of cold, and the accumulation of mistakes over the years is not a sentence or two can explain clearly.

Chaos is chaos, and there are also those that come out of the mud without staining, and the proportion is very small, but there is, which is very important.

The vast majority of supervisors are not active and do not refuse the type.

What does it mean not to take the initiative, not to take the initiative to card you, to pinch you, not to take the initiative to ask for it.

Don't refuse, don't refuse your invitations to eat and give money and gifts.

Most of this Gou Zheng belong to this type of non-initiative and non-rejection, Lin Yun has been on the construction site for more than ten years, not to mention anything else, it is still very accurate to look at the supervision style.

"Qing Gong, Gou Gong, you are here."

When the two supervisors each rode the battery car to him, the little tail began to wag, and the farts were bumpy.

The two people in the project department of the supervision office, in order to facilitate the construction site, are also equipped with two electric vehicles, which is also convenient.

I heard that after the beam yard was built for a while, the project department still had to live with a supervisor, as for who it was, Lin Yun didn't know it yet.

"Xiao Linzi, you are guarding here."

The two supervisors put the battery car away, and the secretary began to make fun of Lin Yun.

"Did the two leaders come to inspect the construction site in person?"

This grandson immediately ridiculed each other, not sarcasm, but a way of joking, and in a sense, even if it is an intern supervisor, it is really Lin Yun's leader, this is irrefutable, or Chen Lei would not jokingly call him the executive deputy supervisor, and this title is about to spread in the project department.

Qinggong smiled slightly when he heard this, and Gou Zhengda nodded slightly when he heard it. Some sycophants, though hypocritical and cheesy, are extremely effective, as the saying goes, thousands of wears, and sycophants don't wear.

"Xiaolin, how long do you plan to build and put into operation this beam farm?"

"40 days."

"Then you have to hurry up and do the external tests of steel strands, bellows, anchors, etc."

"Qinggong, you have to tell the laboratory, I can't control them. Besides, I just came back, and I don't know if the manufacturer has these things. ”

"You can help me convey it to the laboratory, anyway, the first beam and plate, you can't pour it without the outsourced test report."

It's right for people to ask for this, not afraid of 10,000, just in case, in case a lot of pouring out, the result of the steel strand or bellows outsourcing test results are unqualified, then the loss will be big, this matter has to go back to Chen Lei, their laboratory director Chen Huayong, feel not very easy to get along with, Lin Yun usually doesn't want to contact him.

This is a strange circle of interpersonal relationships, many people can't get out, because there is little contact, so a little taken for granted that people are not easy to get along with, feel that the other party is not easy to get along with, and will deliberately reduce contact, this is people's prejudice and self-righteousness.

Lin Yun thought very well, since everyone is a parallel department, and this part of the experiment is not his job, it is already good to be able to help you with a word.

This is a wrong idea, for the overall team of the project department, Lin Yun does this, which is a typical thing that has nothing to do with himself.

If the secretary does not remind, and the laboratory also ignores it, if a large number of beams and slabs are poured out, and then find that the materials are unqualified, it is really difficult to do, and it really cannot be completely said that it is the responsibility of the laboratory, and there is also the responsibility of the engineering quality inspection department.

The steel strand is good to say, after all, it is still one step late, the bellows is unqualified, and all the finished beams and plates must really be disposed of as waste.

The supervisor is already doing the job of checking and filling in the gaps, both reminders and supervision, so no matter how unharmonious the supervision personnel and the construction unit sometimes get along, the national competent department still does not cancel the supervision system is also a reason.

In many cases, it is not possible to simply think about the problem from the chaos of the supervision industry and the convenience of the construction unit, and the cancellation of the supervision system will make the construction project more chaotic, which is also predictable.

The constant reminder may annoy you, but the effect is obvious.

What do you say in that sentence, I hate this kind of person, but since this kind of person exists, he naturally has his reason, yes, existence is the truth.

Can't always stare at the chaos, from the supervision system itself to set up, or the advantages outweigh the disadvantages, this is the meaning of the existence of the supervision system.

This Lin Yun began to wander into the Eight Desolations again.

"Xiao Linzi, what are you daydreaming about?"

"Ah, no, when I think of one thing, I accidentally think too much."

If these supervisors really know what this grandson thinks, they may have to strangle this grandson to death, MD, millions of supervision practitioners, have participated in countless construction projects, there is no merit and hard work, how can it be that you can cancel it if you think about it here.

It's no wonder that Lin Yun didn't see it, like some large-scale water conservancy and hydropower projects, the role of supervisors cannot be ignored, although there are some shortcomings in this industry that cannot be ignored, but in general, it is really a bit of a hidden dragon and a crouching tiger.

"You're afraid you're thinking about women, aren't you?"

"The secretary is smart, what I'm thinking about now is the little girl named Xiao Yu in your supervision office, when will you introduce me to me."

As soon as he finished saying this, Lin Yun found that Gou Zhengda's face was suddenly a little unnatural, I go, this grandson doesn't know if he is married, isn't it that he also fell in love with the little girl named Xiao Yu.

Phew, dead toad, at your weight, not to mention swan eggs, ostrich eggs must be crushed by you.

If you don't say that Lin Yun's grandson is bad, then it is really a belly full of bad water flowing nowhere, seeing Gou Zhengda's expression, he began to entertain Gou Zhengda as soon as he turned around.

"Gou Gong, are you married?"

"Nope."