The house is leaking and raining all night, and the boat is late and the wind is coming again!
020, at 19:15 on March 7, Fujian , , Xinjia Express Hotel, South Ring Road, Changtai Street, Licheng District, Quanzhou City, Fujian, resulting in many people being buried. As of 21:00 on the 7th, 34 people have been rescued at the scene.
According to a shop owner who opened a convenience store opposite, "I thought it was an explosion. When I went out to see it, I found that the tempered glass of Xinjia Hotel was cracking, and then I saw the whole building collapse, revealing the steel structure inside. This happened in less than a few seconds."
on-site videos showed that there was a large area of ruins near a gas station. The photographer said in the video: "The hotel suddenly collapsed, which was so scary." Another video shows that multiple firefighters rushed into the ruins and searched for and rescued the suppressed person.
The key is that
The special situation of this hotel is that this is a pneumonia isolation point, and there are many quarantined people living in it. The specific number of people cannot be determined yet.
The hotel opened in 2018 and has been renovated in a total of 80 rooms, with rooms on 4 to 7 floors, and the exterior wall is designed with glass curtain walls. The hotel is located next to the first phase of Zhongjun Four-Season Kangcheng, No. 1688, South Ring Road, Licheng District. The hotel has 80 comfortable rooms of various types. Employees said: This hotel is not a high-end hotel, and the average stay is only more than 100 yuan per night. ”
From the collapsed ruins, it can be seen that this building may be a steel structure structure. A large number of steel structure components have been bent and deformed on the scene.
A large number of ruins and steel structure components on the scene.
Firefighters have searched and rescued many trapped people
Trapped people were successfully rescued, and it seems that the injuries are good.
From the steel structure components, it can be seen that the column has been The deformation of severe pressure.
Why was it during the epidemic? It suddenly collapsed. This requires later experts to verify and check to find out the reason. I hope the trapped people can hold on, adjust their mentality, and wait for firefighters to rescue.
However, this reminds people of a department store in South Korea that collapsed before. I think there will be some reference.
The collapse accident of Sanfeng Department Store in South Korea
South Korea Sanfeng Department Store is a symbol of rapid development in South Korea, with an average daily reception of 40,000 customers.
collapse accident occurred on June 29, 1995. The building was open at the time of the incident. The sudden collapse of frightened the people, and eventually caused 502 937 people were injured and
accident was highly valued by the local government. In the investigation of the threading and cocoon, the truth of the accident gradually surfaced.
Reason 1: Private construction and random construction and cutting corners
The building was originally built for the purpose of an office building. During the construction, it was privately changed to a department store. This is also the most original cause of the accident.
In order to meet the needs of changes, the building had to cancel the installation of some load-bearing columns to meet the installation of escalators;
On the other hand, the building adopted the traditional beamless floor slab structure at that time. This structure was completely supported by the load-bearing columns and transmitted loads, and the reduction of load-bearing columns It has become a fatal hidden danger to the structure.
In addition, the initial construction party refused to construct according to the new design and was fired. In the end, the building was constructed by Sanfeng Group's own construction company.
The new construction party used concrete that did not meet the standards during the construction process, and reduced the original number of steel bars from 16 to 8. The diameter of the concrete support columns did not meet the standards.
Another important component pallet in the flat structure is also fewer in the building, and the lack of missing parts further weakened the bearing capacity of the building.
Reason 2: Changes in the use function result in an increase in load
After the building was changed to an office building to a department store, a floor of was added to the original four-story structure.The initial design of the newly added five-story
was to be used as an ice rink, but it was later changed to a traditional Korean restaurant. It seems that the difference between the two is not much, but in fact it has led to a sharp increase in the load under the structure.
Reason 3: Improper operation aggravates structural damage
air conditioner on the top of the building greatly increases the burden on the building, and the air conditioning equipment of the entire building is installed on the roof. The three large air conditioners weigh 29 tons in total, and the total weight of the air conditioners is as high as 87 tons, which is as much as four times the load-bearing load that meets the design standards.
What's worse is that the air conditioner on the top of the building has been violently moved, and the path of the air conditioner moving is filled with cracks.
The vibration generated during the operation of the air conditioner further aggravates the damage to the structure. When the building finally collapsed suddenly, it started near the location after the air conditioner moved.
Reason 4: The additional auxiliary facilities are added, and the structure is further damaged
It is helpless that the newly established security facilities have increased the burden on the structure. At that time, Seoul asked department stores to install firewalls next to the escalator. In order to make room, workers had to cut the concrete columns next to the elevator. The load-bearing column, which was already overwhelmed, was once again damaged, and under multiple actions, the structure was in a state of crisis for a long time and eventually collapsed suddenly.
The tragedy of the collapse of Sanfeng Department Store in South Korea can be said to be entirely caused by people's neglect of building safety. Whether it is not constructed according to the drawings, changes in the use function, destroying the original structure, or adding large-scale ancillary facilities, the structure should be safely inspected and reinforced in a timely manner.
I don’t know much about the collapse of Xinjia Express Hotel, but I heard from the hotel employee that the landlord had carried out foundation-related construction.
I don’t know if this collapse is related to this construction.
No matter what, the most urgent search and rescue of trapped people is now.
However, our building safety concerns the life safety of many people. The neglect of building safety is disrespect for life. Illegal operations will eventually suffer the consequences.
hope that during the epidemic, this situation will not occur in in . Let's continue to pay attention to the follow-up situation.
