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sp; Nationals White Sox BaseballChicago White Sox's Colin Montomery watches his RBI single during the sixth inning of a baseball game against the Washington Nationals in Chicago, Friday, April 24

出整改防范措施和建议。      　　调查组查明，事故的直接原因是涉事桥梁临时扣塔中斜拉扣挂系统的分配梁由两个节段用螺栓连接而成，其拼接处使用了劣质螺栓，螺栓承载能力与国标相比总体下降约41%，大幅降低了分配梁拼接处的承载能力;分配梁制作安装质量不符合要求，未按设计和规范要求开螺栓孔，现场安装时因无法对齐而随意扩孔，改变了拼接处螺栓群的工作机理，降低了螺栓群

tionals White Sox BaseballChicago White Sox's Colin Montomery watches his RBI single during the sixth inning of a baseball game against the Washington Nationals in Chicago, Friday, April 24, 2026. (AP

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