1, the basic parameters of structural design
The safety level of the building structure is Grade II, and the design service life is 50 years. For the seismic category, seismic intensity, basic acceleration, basic wind pressure and snow pressure, ground roughness category, building site category and other parameters should meet the basic requirements of the code or the competent authorities recognized special consulting report, it is not appropriate to raise the standard.
2, constant load
Roof, floor, ground and building partitions of the standard value of the constant load according to the architectural design of the mission statement requires the use of materials, wall thickness and decorative standards calculated to determine. Wall load calculation should pay attention to distinguish between the fire partition wall and ordinary lightweight partition wall capacity.
General parts of the floor practice reference load 2.5kN/m2; ice rink ice area floor practice load 4kN/m2 ~ 5kN/m2; large and medium-sized catering kitchen area 4.0kN/m2, if there is no specific location of the kitchen, you can appropriately expand the reserved kitchen area.
In the design of construction drawings, the corresponding load should be reserved for the facade (curtain wall, light box, LED screen), with special attention to the glass curtain wall and stone curtain wall load should be taken according to the drawings.
3, live load
(1) commercial retail: 4.0kN/m2; the first floor 5.0 kN/m2
(2) cinema 3.5kN/m2; KTV, video games, ice rinks: 4.0kN/m2 (3) fitness center: 4.0kN/m2 (swimming pools can be considered in accordance with the constant load of the body of water) (4) food and beverage: 4.0kN/m2 for the kitchen, 4.0kN/m2 for the dining room. kN/m2, dining area 4.0kN/m2 (6) bathroom 2.5kN/m2 (7) fire stairs: 3.5kN/m2
(8) supermarket live load reference value: fresh area, grocery area, grain and oil area 10.0kN/m2, warehouse 15.0kN/m2, leased area 4kN/m2, receiving area 15kN/m2, the general area of the stores 7.0 kN/m2, loading and unloading area 20K N/m2
(9) live load on the roof: 3.0kN/m2, excluding green mulch and roof large equipment load
4, equipment load
Equipment load
Equipment room load value should be provided by the equipment professional calculations in accordance with the actual situation. Otherwise, the value can be taken in accordance with the "national civil building structure technical measures". For HVAC equipment placed centrally on the roof, the structural design needs to be provided by the equipment professional to provide the appropriate information.
5, fire truck load
Should take into account the most unfavorable arrangement of the load and the diffusion of stress in the bedding layer under the wheels, converted to an equivalent uniform load. For the foundation, crack control only consider the usual use of loads, beams, columns, floor strength design to consider the combination of fire truck loads. When the structural plate exists on the soil or other filler, the wheel pressure of the fire engine needs to consider the stress diffusion to be discounted after acting on the structural beams and plates, the fire engine load in accordance with the specification requirements for the most unfavorable arrangement of the beams and plates of the calculation of the cross-section and reinforcement. Columns, foundation design and crack width control does not take into account the fire truck load, but should meet the requirements of normal use of the load.
6, other loads
The main atrium area can appropriately increase the live load for water features, large sculptures and other reserved possibilities. Main atrium top light roof, should be reserved for hanging load. The value of suspended load is based on the recommendation of the extension department. The effect of loads from large diameter water pipes hanging from the basement roof should be considered. Other unlisted loads are valued according to the specification.