预制梁板吊装时,吊绳与梁板的交角为( )时,应设置吊架或吊装扁担。A、45 B、60 C、75 D、90

作者: rantiku 人气: - 评论: 0
问题 预制梁板吊装时,吊绳与梁板的交角为( )时,应设置吊架或吊装扁担。
选项 A、45 B、60 C、75 D、90
答案 A
解析 【知识点】装配式梁(板)安装就位的技术要求。吊装时构件的吊环应顺直,吊绳与起吊构件的交角小于60时,应设置吊架或吊装扁担,尽量使吊环垂直受力。参见教材P70。

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