Definition:
Live load: the variable load related to the use function and activity, such as personnel, goods, mechanical equipment, wind load, etc.
Dead load: the weight of the building itself and the weight of the components and materials fixed on it, such as walls, beams and columns, floors, roofs, etc.
Characteristics:
Live load: not fixed, change with time and usage.
Dead load: a resident, fixed load that will not change with time and usage.
Variability:
Live load: its value changes with time, and its change value is not negligible compared with the average value.
Dead load: no change over time or its change value is negligible compared with the average value.
Partial Factor:
Because the live load changes relatively large with time, the component coefficient should be relatively large to meet the requirement of reliability.
Dead load is relatively stable, and it does not change too much with time, so the load component coefficient is relatively small to meet the requirement of reliability.
Design consideration:
In the structural design, it is necessary to comprehensively consider the influence of live load and dead load on the building and the structure to ensure the safety and stability of the structure.
According to the standard value of floor living load, it is roughly divided into the following seven grades according to personnel and equipment:
2.0 kN/sqm | few people are active |
2.5 kN/sqm | more active people and have equipment |
3.0 kN/sqm | many people are active and have heavy equipment |
3.5 kN/sqm | the active people are very concentrated, sometimes very crowded or have heavy equipment |
4.0 kN/sqm | the nature of the activity is relatively intense |
5.0 kN/sqm | the warehouse for the stored goods |
6~7 kN/sqm | there are large mechanical equipments |
If you need Steel Structure Building design and quote, Please give us a call or drop us an email and one of our team will be happy to help you.
Email: annaworldbiz@hotmail.com
Whatsapp/Wechat/Mobile Phone: +86-15853209069
