1. Constant load: the floor load is uniformly taken as 2.0kN/m2, which is the self-weight of the professional floor practice of the building, aiming at leaving a proper margin for the renovation and transformation, excluding the self-weight of the floor structure and the weight of the practice of the bottom of the slab.2. The self-weight of the light partition wall of the residence, no matter whether it is a light partition wall or a partition wall whose position has the possibility of flexible and free arrangement, is uniformly considered according to the constant load, and the value of which is 2.0kN/m2 uniformly. 3. Residential live load, also take 2.0kN / ㎡ (three 2.0kN / ㎡: floor practice weight, lightweight partition wall weight, live load value) 4. 4.0kN / ㎡ roof constant load 2.0kN / ㎡ roof live load on the people on the people when 0.5kN / ㎡ (for the lightweight steel structure of the roof, be sure to write in the structure of the general description: the project is not on the people roof, the live load design value is 0.5kN / ㎡ (for the lightweight steel structure of the roof, must be in the structure of the general description: the project is not on the people roof, the design value is 0.5kN / ㎡ (for the lightweight steel structure of the roof, must be in the structure of the total description of the roof, the design value of live load is 0.5kN / ㎡). Live load design value of 0.5kN / ㎡, overloading is strictly prohibited) 5. need to remember three data: 2.5kN / ㎡, 4.0kN / ㎡, 7.0kN / ㎡ 2.5kN / ㎡ applies to people or things may be more concentrated floor, such as general staircases, general balconies, general toilets, general kitchens, conference rooms, reading rooms, hospital outpatient clinics, classrooms, etc. 4.0kN / ㎡ applies to people or things may be more concentrated and more intensive floor. May be more concentrated and more intensive floor, such as gymnasiums, bleachers, ballroom, stores, passenger waiting rooms, exhibition halls, fire evacuation staircases, etc. 7.0kN / ㎡ for the two machine rooms and a transformer room, that is, ventilation equipment room, elevator room and high-voltage transformer room. Because these places not only have equipment load, and equipment foundation load is also very big.6. Ground floor top plate, or approximation that is ± 0.000 plate, it's live load value of 8 ~ 10kN / ㎡. Because the construction to ± 0.000, the construction unit is often engineering materials are stacked on the top of the first floor, so as to facilitate the construction of anytime, anywhere access. At the same time, it should be noted that, when ± 0.000 plate live load value of 8 ~ 10kN / ㎡, the constant load in the partition wall weight can be taken as 1.0kN / ㎡ or smaller, because of the large number of construction materials piled up, the construction of the partition wall is generally not yet completed. (Design ± 0.000 plate, in the case of the same cross-section size, plate and beam reinforcement tend to be larger than other floors) concept of the first place, calculate the second place.
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