Buildings are often deformed by external factors, causing cracking and even destruction. Deformation joints are structural joints that are reserved for this situation. At the same time, the construction plan must also be constructed for deformation joints. The traditional method is to use galvanized iron sheet, steel plate or aluminum plate on-site processing, construction is simple and rough, not only beautiful and short life, this technology has been unable to meet the development needs of the modernization of the construction industry. Then, the next small series for everyone to explain deformation joints and what are the characteristics of deformation joints. What is the deformation joint? Deformation joints are mainly used in the field of construction. As the name suggests, deformation joints are mainly reserved for cracks in buildings due to external factors such as cracking and even damage. As people build more and more houses and the structure becomes more and more complex, so magical deformation joints are produced in accordance with the development of the times. Its appearance provides the security for the houses we live in now. Certain protection has become an important part of our lives. What are the characteristics of deformation joints? 1, characteristics and use The construction of deformation joint equipment is an industrialized and established product that combines practicality and decorativeness and is produced by a specialized chemical factory. It has the characteristics of exquisite workmanship, beautiful appearance, standardized goods, and long service life, and conceals the deformation joint of the building. Aspiring to build accessories. The developed countries in Europe and America have had decades of pre-production history. Since the beginning of the 1990s, some entrepreneurs in China have introduced technology from Germany and the United States to set up China's deformation joint equipment production enterprises. So far, they have become very sophisticated. The construction of commodities is widely used in the construction of airports, convention and exhibition bases, sports bases, medical bases, shopping malls, office buildings, and joint industrial plants. Due to the increasing selection of deformation joint equipment, the quotation is also falling. The Shanghai Pudong International Airport built in 1999 was selected by the United States for the import of deformation joint equipment, which costs about RMB 3,000 per meter. In 2004, the new airport in Guangzhou was built using domestically produced deformation joint equipment, which costs approximately RMB 1,000 per meter. 2, planning specifications In order to facilitate the use of deformation joint equipment by the extensive architects during the planning, the Chinese Institute of Construction Planning and Research has published and published the “Deformation Joint Construction Structure†(04CJ01-1--3) in January 2004. . All provinces, municipalities, and regions also successively published and issued plans for the construction of a standardized plan. 3, planning request If the installation of water-stopping belts, fire-resisting belts and heat preservation belts in the construction of deformation joint equipment can also make the deformation joint equipment satisfy the planning requirements of waterproofing, fire prevention and heat preservation. Waterstops are made of EPDM rubber sheets with a thickness of 1mm. They can be used under sunlight, moisture, and cold for a long period of time. The fire-resisting belt is a special fitting composed of two layers of stainless steel liners sandwiched between aluminum silicate fire-resistant fiber mats. The two sides of the fire-resistance belt are fixed with the main body structure of the building. Fire resistance belt can meet the request of 1-4h not the same fire limit. 4, data composition In order to fully understand the deformation joint equipment, the composition, type and application status are briefly described as follows: The deformation joint equipment is made of aluminum alloy profiles, aluminum alloy plates (or stainless steel plates, copper plates), central control slide bars, rubber molded bars and All kinds of special strips and other components. During this time, rubber products are required to have excellent fatigue resistance, low temperature resistance, compression deformation resistance, UV resistance, and waterproof properties. Classification of deformation joints 1, expansion joints Expansion joints are also referred to as temperature joints, and are mainly a type of joint provided for considering the effect on buildings when the temperature changes. With the expansion and contraction of the climate, building materials and components will be deformed. For buildings that are too wide and too long, the wall will crack or even be destroyed due to the thermal expansion and contraction of the temperature. Therefore, the construction Workers installed expansion joints for buildings that were too long and too wide to be divided into several sections, which ensured the free expansion and contraction of each section and avoided the cracking of the wall. The slit width of the expansion joint is generally between 20-30mm, and the gap can be filled with elastic insulation material. 2, settlement joint Settlement joints are set considering the uneven settlement of certain parts of the building. When there are large differences in the structural form, load, height difference, and bearing capacity of the foundation, or the plane of the building The shape is more complex, then there may be uneven settlement in adjacent parts, then it will lead to cracking, tilting or even collapse of the entire building. Therefore, when setting settlement joints, the building is divided into a number of independent parts to ensure that each part will be settled separately and will not be constrained by each other. The width of settlement joints is generally between 30-120 mm. 3, shockproof joints Considering that earthquakes will cause damage to buildings, many buildings will also be equipped with anti-shock joints, especially for some multi-story masonry buildings in areas where earthquakes are fortified, when the facade elevation of the house is more than six meters, or if the houses are wrong. When the floor height difference is relatively large, or when the structural rigidity and quality of each part of the house are different, in the event of an earthquake, adjacent parts of the building may collide with each other and cause damage. Therefore, the anti-shock seam is provided to separate the building into a number of individual units with simple body and uniform structural rigidity so as to avoid damage caused by earthquakes. The width of the anti-shock seam is generally between 50-100 mm. Editor's summary: What are the characteristics of deformation joints and what features of deformation joints are introduced here, I hope to be helpful to everyone. If you want to know more related information, you can pay attention to this website information. 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