What are the measures to prevent falling objects in curtain wall construction?

First, avoid the legal risk of curtain wall glass falling. Once the curtain wall glass on a high-rise building falls, the property service enterprise will be held accountable first. According to 1987, Article 126 of the General Principles of the Civil Law of People's Republic of China (PRC) stipulates: "If a building or other facilities and the shelving or hanging objects on the building collapse or fall off or cause damage to others, its owner or manager shall bear civil liability. Obviously, the property service enterprise is the manager mentioned in this clause. Similarly, Article 85 of the Tort Liability Law of People's Republic of China (PRC) promulgated in 2009 stipulates: "If buildings, structures or other facilities and their shelving and hanging objects fall off and cause damage to others, and the owner, manager or user cannot prove that he is not at fault, he shall bear tort liability. If the owner, manager or user has other responsible persons after compensation, he has the right to recover from other responsible persons. "Property services companies are still in the position of managers. According to the principle that the new law is superior to the old law, the tort liability law is generally applicable to the legal liability of people injured by falling glass of building curtain wall, that is, the owner, manager or user shall be liable for compensation. As managers, how should property service enterprises avoid the legal risk of curtain wall glass falling? Second, the first is the transfer of the subject of legal responsibility. One is to leave the maintenance and management responsibility of the glass curtain wall to everyone (the owner). Article 8 of the recently promulgated Measures for the Administration of Safety Maintenance of Curtain Walls in Existing Buildings stipulates that the owner is the person responsible for the safety maintenance of glass curtain walls, and the property service enterprise can separate the maintenance management of glass curtain walls from the contents of the property service contract. General property service companies do not have the professional knowledge, skills and related equipment to maintain glass curtain walls, let alone the corresponding qualifications. As the saying goes, "Don't engage in porcelain work without Jin Gangzuan". Therefore, when signing the property service contract, if it is found that there is glass curtain wall maintenance and management in the property area to be undertaken, it should be listed separately and explained to the owner or the owners' meeting. Don't blindly undertake this business regardless of your own strength. The second is to transfer the maintenance and management responsibility of glass curtain wall to users (such as tenants and contractors), which reminds the owners to leave the maintenance and management responsibility of glass curtain wall to users in the lease or contract. The national standard "Technical Specification for Glass Curtain Wall Engineering" is 8. 2。 Regulation: When the glass curtain wall is in normal use, it should be comprehensively inspected every five years, and the glass, sealing strip, sealant and structural silicone sealants should be inspected at unfavorable positions. Third, the second is the avoidance and prevention of management risks. If the glass curtain wall maintenance business cannot be shirked or ignored, during the warranty period, the contractor shall be urged to carry out warranty and maintenance in accordance with the construction contract, and the work contact letter, maintenance records and related photos shall be well filed. If the construction party fails to maintain the warranty in time, it will be investigated for legal responsibility in case of danger in the future; Over the warranty period, the realty service enterprise can subcontract the maintenance and management of the glass curtain wall to relevant units with professional maintenance qualifications. Fourth, solve the problem from management and technology. The above methods are only used to avoid legal risks. To really solve the problem, we have to work hard on management and technology: early intervention stage: send a written contact letter to the development and construction unit to remind them not to use glass curtain wall and explain its harmfulness; If the development suggestion unit insists on using glass as curtain wall, it can put forward the following suggestions to minimize its harm: First, change the design drawings of high-rise buildings with glass curtain wall, and add a skirt building or green belt next to the main building to prevent the glass from falling into the skirt building or green belt in the future to avoid direct injury; Second, it is suggested to use laminated glass or laminated glass or semi-toughened glass, which can avoid the shortcomings of self-explosion of toughened glass; Thirdly, it is suggested to design the curtain wall as semi-implicit, so as to avoid that the fully implicit curtain wall relies on structural adhesive as fixing agent, and the glass will easily fall off after silica gel aging. Fourthly, it is suggested that the height of single glass should be reduced appropriately to avoid the phenomenon of self-explosion caused by the stress enhancement of glass due to excessive height. This preventive method should be formulated according to the actual situation of the building. A green belt with sufficient width should be set around the building to reduce the corresponding danger, and the joint between the building and the curtain wall should be strengthened accordingly.