Former Minister of the Interior Li Hongyuan explained that the collapse of the underground parking lot of the Cultural Park was caused by a structural technician's computer key in error, which led to structural inadequacy.

(Photo by reporter Xie Wuxiong)

[Reporter Xie Wuxiong/Taoyuan Report] Taoyuan Mayor Zhang Shanzheng established the "Taoyuan City Government Public Works Physical Examination Committee" at the end of last year, invited external experts and scholars to find out the problem, and selected the underground parking lot of Pingzhen Cultural Park, the administrative building and parking lot of Yangmei District Office The three projects of Zhuwei Fishing Port and Yacht Wharf are the focus of the first wave of medical examinations. Among them, the underground parking lot of Pingzhen Cultural Park was caused by a roof collapse accident on April 30, 2020, causing 1 death and 2 injuries. It was finally determined that the structural calculation was negligent.

Li Hongyuan, the convener of the committee, said that the biggest problem in this accident was the computer input error of the structural technician, which caused the structure to be less than 1/4 of the specification, and it was surprising that none of them were found in more than ten follow-up reviews.

Secretary-General Zhan Rongfeng said that the "Public Works Physical Examination Committee" also visited the site to discuss and communicate with the builder, design architect, and external structural audit unit on the cause of the accident, repair, reinforcement and reconstruction methods, and the construction process. They also carefully inspected the parking lot For various facilities, the final determination of the cause of the accident is the key to structural calculation errors.

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The underground parking lot was designed without beams and columns, and the main cause of the roof collapse was a structural design calculation error. The original second-floor top plate penetrating shear force bearing area should be 68.97 square meters, but the structural calculation book is only 16.05 square meters, which is less than the standard area of ​​4 1/1; Chen should review the structural calculations attached to the contract before construction, and immediately inform the architect and structural technician if there is construction difficulty or public danger in the content, but he neglects to pay attention to the construction directly.