A unit in the capital of Sunrise Cannes in Tseung Kwan O was revealed yesterday (27th) to suspect that part of the main wall was removed during the renovation period and rebuilt into the door of the master room. So Kai-leung, associate professor of the Department of Civil Engineering of HKU, said on the radio today (29th) that according to online information, it is initially believed that the unit has demolished part of the main wall, and the area is quite large. He advised that if the building relies on the main wall to carry its own gravity and wind, it is very dangerous to directly demolish the entire main wall without design and approval: "It is like a table without a stool and becomes unstable", or there may be a danger of collapse.
He pointed out that the owner is liable, but it is difficult to restore the main wall, such as the need to use the same quality of concrete, the subsequent repair and pouring is not a simple process, and the reconnection of steel bars is also difficult.


The unit was originally designed as a three-bedroom, and the designer opened the three-bedroom corridor and changed it into a large master suite and cloakroom, and the master door was also relocated, so the designer pierced a wall between the living room and the bedroom and changed it to a door. (Online video screenshot)

In an interview with Shangtai's "Departure on a Clear Day", Su Qiliang said that according to the pictures on the Internet, he believes that some of the main walls are open, and the area is quite large, "but there is nothing left on both sides."

The main wall was demolished and had a chance to collapse

He said that the main wall is used to bear the weight and wind load of the building itself, and if the entire main wall is demolished, it may collapse, "because the middle floor of the building bears the weight of the upper floor, which is like a table without a stool, and it becomes unstable." He also pointed out that unless the relevant demolition design has been incorporated and approved by the Buildings Department, direct construction is very dangerous and unacceptable. Asked if partial demolition is feasible? For example, he pointed out that some circumstances may be permitted, such as the roof of a high-rise building has sufficient carrying capacity, and if it is entered, it is approved, "there is a chance to do it, but you have to open a few big holes."

As for whether there is an immediate danger to the upper-level units in the incident? He pointed out that after careful investigation by the Buildings Department, he initially believed that there would be structural problems, "but not collapse", as the demolition works have been completed for some time and the recent non-windy season has not seen its impact, "but it does not mean that there will be no problems in the future."

The restoration plan is subject to the approval of the Buildings Department

Su Qiliang pointed out that the owner needs to be liable, but it is difficult to restore the main wall, including the use of the same quality of concrete, but unlike the building construction, it is necessary to transport the unit in batches by manpower, and the stone feces acceptance report must also be carried out, and the subsequent repair and pouring is not a simple process, and it is also difficult to reconnect the steel bars. He said there were different restoration schemes, but all of them needed to be approved by the Buildings Department.

He also believes that this incident is of educational significance and can inform the public that the removal of part of the main wall not only involves their own units, but also affects the structure of the building, and the repair cost is expensive.

Sunrise Cannes Capital suspected of penetrating the main wall Unit introduction clip talks about another structural wall: Demolition to Sunrise Kangcheng Capital Unit suspected of penetrating the main wall Buildings Department: True will enforce the law Can be sentenced to prison fines Sunrise Cannes Capital Unit suspected of penetrating the main wall List of decoration costs Demolition and scaffolding charge $X million Sunrise Cannes Capital suspected of penetrating the main wall Architect: The consequences of tearing down the wrong wall are serious or the steel bar must be refuted