construction industry has developed by leaps and bounds, and the state has spared no effort to introduce a number of rectification measures, emphasizing "full coverage, zero tolerance, strict law enforcement, and emphasis on practical results. Industry experts at all levels cited tens of millions of accident sources to prevent them. It can be seen that the effect of governance has slowed down but is not optimistic.

did not talk about lifting, deep foundation pits, human and cargo ladders, machinery, vehicles, electric shock, poisoning and suffocation and other accidents, but the collapse of steel pipes on scaffolding, accounting for 59% in 1992 and unified in 2003-2009 10 years later. 54.29%. In 2013, the national construction industry suffered 113 casualties compared with the 28th phase of the accident, with scaffolding collapsing accounting for 56.49%, followed by tower cranes accounting for 21% 19, and people and goods elevators 12.11%. Alarm bell Over the past 20 years, the source of scaffolding collapse has shifted. In recent years, the Ministry of Housing and Urban-Rural Development announced that falling from heights and object strikes accounted for more than 70% of accidents. However, no matter what the source of the accident changes, the construction accident is still surging. The sound still repeats yesterday's accident.

looking back at the construction accidents (excluding lifetime disability and minor injuries) from 2004 to 2015, a total of more than 10,000 people died. looking at 2012-2014, 624-653-648 people died respectively in the past three years, even if There are still more than 500 people killed in the 2015 housing depression. This step is used to curb accidents. For example, the annual decline of 300-200 people must have a long way to go, and the building people are tied to the string. At present, who is committed suicide, disabled for life, minor and serious. Harm? How can it not be chilling to remember this horrible scene. Briefly described below.

1. There is a link between the frequent occurrence of scaffolding accidents and the increasing complexity of current architectural design and the increasing size of buildings.

2. Some experts say that scaffolding is not a technically complicated link. Whether scaffolding accidents can be eliminated is, in the final analysis, directly related to the implementation of corporate safety responsibilities and whether government supervision responsibilities are in place.

3. Some senior people said. "In the field of construction, scaffolding construction is often regarded as one of the links with low technical content and low construction requirements. But it is precisely this link that has now become the" pain point "where accidents are most likely to occur and one accident is the big problem."

4. Shelf workers generally say. Scaffolding pipes almost do not meet the national requirement of 3.6mm wall thickness standard, because the bending of steel pipes is difficult to straighten and do not give up replacement, in addition, the market does not have the national standard of 3.6mm wall thickness elbow repair equipment. Therefore, it is a common phenomenon to choose thin-walled pipes below 3.0-2.75 and lower cost.

5. Construction workers generally responded that even if the tower is in accordance with various technical standards, it is more likely to cause accidents when mixed with a large number of thin-walled tubes that are not bent and straight.

6. It is said that getting rid of the "difficulty of scaffolding" and making grassroots supervision no longer a formality and a formality have become an important topic that the whole society should pay attention to and reflect on. The prevalence of accidents is tantamount to the last line of defense becoming a dummy. (To sum up, all factors can be understood, and more can be seen in online search.)

difficult to manage for a long time? Whether the source of the accident comes from the collapse of the scaffold template or the attack of falling objects from high places, the current situation is as follows;

construction industry cannot do without scaffold steel pipe, repair and renovation is an indispensable process. No matter the old and new steel pipes, after multiple cycles of construction and stress, part of them are bent and deformed during disassembly and transportation. When the tower terminal is cross-connected with fasteners and large areas, Regardless of whether it is used for any erection structure such as single and double rows, full-hall pipes, etc., if the steel pipe is not bent concentric, the density of the sphere in the material is fission, and its axial flexion stress completely deviates from its destination. Different curved tubes are shorter and more brittle when stressed inward. Weak, when the outward extension leads to loosening of the shift fastener, bending deformation of the steel pipe and corrosion of the thin wall, which leads to weak protection. As a hollow circular tube, its supporting axial force is the biggest key. The Qianli dam was destroyed by the ant nest and the Qianli tower despised the mechanics. The system is not big. The natural law of straight pipe top ten thousand catties and curved pipe top one thousand catties is easily ignored and underlies major hidden dangers.

construction industry cannot do without scaffold steel pipe, repair and renovation is an indispensable process. No matter the old and new steel pipes, after multiple cycles of construction and stress, part of them are bent and deformed during disassembly and transportation. When the tower terminal is cross-connected with fasteners and large areas, Regardless of whether it is used for any erection structure such as single and double rows, full-hall pipes, etc., if the steel pipe is not bent concentric, the density of the sphere in the material is fission, and its axial flexion stress completely deviates from its destination. Different curved tubes are shorter and more brittle when stressed inward. Weak, when stretched outward, the shift fastener is loose, the steel pipe is bent and deformed, and the wall thin rust pipe that does not meet the standard loses its protective effect and is easy to break. As a hollow circular tube, its supporting axial force is the biggest key.

practice is the only criterion for testing truth, except for blindly investigating tower technical specifications and measures. Sick to find the source root, good medicine to treat the cause of the disease, walking difficulties come from the inability to do so, blindly cure the recurrence of the foot.

1. The outer diameter of the national standard scaffold pipe is 48mm, and the wall thickness is 3.6mm. The market can prove that the existence of the safety guarantee coefficient is seriously weakened 90% the use of less than 3.0mm.

2. The market does not have the equipment to straighten the national standard scaffold pipe, remove rust, paint and repair, which is driven by benefits. Therefore, thin-walled pipes can only be used instead and the cycle cost is lower.

3. Scaffolding pipes are widely used all over the country, and the amount of scaffolding pipes is huge, which can prevent the bending thin-walled pipes from being put on shelves for a long time and cannot be managed. The destruction of a thousand-mile dam in an ant nest has little to do with the slander mechanics of a hundred-foot tower. The natural law of straight pipe top ten thousand catties and curved pipe top one thousand catties is easily ignored and a major hidden danger is hidden.

As we all know, the mixed application of thin-walled rusty pipes with poor bending seriously weakens the guarantee coefficient of technical design and reduces the rigid bearing capacity. This is the terrible consequence that construction people are most worried about. Human body materials are eager to flow on the tube frame template, Bending and thin-walled tube internal and external stress, sometimes the wind direction ripples high-altitude suspense gravity, etc. In this crumbling state and the material's one-sided to point surface force unequal factors, the more it is cast in the timid working environment, the higher the fall. Accidents such as falling and object strikes occur instantaneously. If there is no accident, it should be resigned to fate. If there is an accident, the weak body will be justified by others. Who mentioned that the bending pipe is not straight and the thin-walled rusty pipe is caused by factors such as? I know that it is not suitable for eventful times. The situation is long and hidden. Therefore, it is difficult to think of nothing in a vicious circle year after year. In addition to the emergency plan, the injured are comforted, the dead are compensated, the insiders are good at winning the field, and the alert is wise to peep at more than three (many bends, thin It is not difficult to understand that there are many tubes and many rusts. As early as 2002, Ben learned the public opinion of the injured in the research and development of products.