Advantages and disadvantages of steel structure house
1. Advantages of steel structure room
1. Low-level safety and reliabilityThe residential unit with steel as the main building material has high volume bearing capacity, is more stable and firmer than traditional brick-wood and brick-concrete technology, has good seismic performance, wind resistance, waterproof and fireproof performance, and also has heat and sound insulation functions. The steel has good ductility and can better consume the energy brought by the earthquake, so it has good seismic performance and high structural safety, which ensures the safety of the residence.
2. High degree of industrialized production, simple construction and short construction periodIt can be mass-produced in batches with high manufacturing accuracy. The construction method of factory manufacturing and site installation can greatly shorten the construction period and improve economic benefits. All components are prefabricated in the factory, and the site only needs to be assembled simply, thus greatly shortening the construction period. For a building of 6000 square meters, the basic installation can be completed in only 40 days.
3. Durable and easy to repairThe steel structure building designed by the general-purpose computer can withstand harsh weather and only requires simple maintenance.
4. Beautiful and practicalThe steel structure building has simple and smooth lines and a modern feel. The color wall panels are available in a variety of colors, and the walls can also be made of other materials, so they are more flexible.
5. Green and sustainableAll dwellings have a certain service life, and the raw materials for demolished brick-concrete dwellings cannot be reused, and a large amount of garbage will be generated to pollute the environment. The steel of the steel structure house can be recycled 100% to realize recycling, and it will cause less environmental pollution during construction and demolition, which is in line with the requirements of residential industrialization and sustainable development.
6. The weight of the house is smallThe steel content of the main structure of the steel structure house is usually about 25KG/-80KG, and the weight of the color profiled steel plate is less than 10KG. The self-weight of the steel structure house is only 1/8-1/3 of the concrete structure, which can greatly reduce the cost of the foundation.
2. Disadvantages of steel structure room
1. The foundation of steel structure house is easy to lose stabilityDue to the characteristics of the steel structure itself, the overall or partial instability is related to the whole process of the foundation and the bolt, and the two are also related to each other. Most of the instability of the steel structure factory building is caused by steel. If the slenderness ratio of the bent part exceeds the standard value, it will lose stability. There are many objective factors that cause instability, such as load changes, initial defects of steel, and different support conditions, which can all cause instability. Foundation problems can be divided into three types: foundation strength, foundation deformation and foundation damage.
(1) The strength problem of the foundation is generally manifested in the insufficient bearing capacity of the foundation and the instability of the foundation or the slope.
(2) The problems of foundation deformation are concentrated in areas such as soft soil, wet loess, expansive soil and seasonally frozen soil, where excessive deformation and uneven settlement of the foundation have occurred due to load.
(3) There are three forms of damage to the foundation, local shear failure, overall shear failure and punching failure.
2. Damage to the steel roof of the steel structure workshop(1) Most of the load-bearing members of steel roof are composed of thin-walled C-shaped steel and slender rods, with complex cross-sectional shapes, nodal stress concentration and eccentric gravity.
(2) In the steel roof design, the calculated load and the calculation diagram are relatively correct, almost close to the calculation limit state, the safety reserve of the bearing capacity of the structural parts is the smallest, and the sensitivity to the effects of humidity, overload and corrosion is extremely high. It is easy to cause its failure. If various negative effects in the manufacturing, installation and use process are added, the steel structure roof is the most severely damaged part of the steel structure factory building.
(3) The main damages that occur are rod bending, roof collapse, gusset plate bending or cracking, frame member fracture, roof deflection exceeding standard roof support buckling, and internal water tank leakage.