Multiobjective Optimization of Safety Risk of Prefabricated Building Construction considering Risk Correlation

Table 2

Risk pairs with risk correlations.

No.	Correlated risk pair	Loss from a single risk (10,000 yuan)	Loss from concurrent risks (10,000 yuan)
1	Lack of professional technicians	17.95	29.40
	Defects in construction techniques such as prefabricated component assembly and key part processing	22.95
2	Illegal operation by builders	12.30	72.22
	Improper operation, maintenance, and safety inspection of equipment	34.45
3	Poor quality and weak safety awareness of personnel	25.80	37.20
	Lack of relevant safety education or training	29.80
4	Nonstandard building materials used in the construction	21.80	55.31
	Lack of unified, effective management standards or supervision mechanism	49.35
5	Arbitrary stacking of construction materials	9.30	20.79
	Mismatch between safety management system and actual construction conditions	14.45
6	High-altitude operation	25.60	62.64
	Improper protection measures for borders and openings	16.80
7	Narrow working surface, insufficient lighting	12.80	43.59
	Awful weather	18.25