The "Act of God" is also a "man-made"

Hanzhong Gate Bridge opened to traffic just over a year and a half, why there is such a fence will be the quality problem?What is the reason for the design or construction of jerry-building?Is a natural or man-made disasters do?Zou Jianping, said the investigation by experts analyzed the main reasons for cracking of the main bridge railings have 3 points.The relevant management units in the building inspection process of poor management.