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悬挂式钢煤斗直筒段通过斜锚筋及锚固板镶嵌在煤斗大梁中,下部锥体段与直筒段焊接连接,锥体整体悬挂在直筒段上.由于其设计无常规煤斗裙梁,锥体上口口径较镶嵌在煤斗大梁内的直筒段外形尺寸大,且直筒段安装须在煤斗大梁混凝土施工前完成,无法按照常规钢煤斗整体或分节吊装的施工方案进行安装,本施工方法创新性地在煤斗大梁下面的一层框架上增加2根H型钢梁,在煤斗大梁施工前,将锥体吊放在钢梁上,避免了煤斗锥体拖运就位,降低了锥体安装难度,在锥体临时就位时增设槽钢支撑加固,有效地确保了整体的稳定性.煤斗锥体上口距离煤斗直筒段仅83cm,大大减少了安装时的提升距离.在施工煤斗大梁时,先将大梁钢筋绑扎完,再分片安装直筒段,最后支设模板及施工混凝土,模板支设时在梁底增设模板对拉加固,确保了混凝土施工时模板牢固可靠.
Hanging steel coal straight section through the oblique anchor and anchor plate embedded in the coal bucket girder, the lower cone section and the straight section of the welded connection, the overall cone hanging in the straight section due to its design without conventional coal bucket skirt beam, The diameter of the cone mouth is larger than that of the straight barrel section embedded in the coal bucket girder, and the installation of the straight barrel section is to be completed before the construction of the coal-bucket beam concrete and can not be installed according to the construction scheme of the conventional steel coal bucket hoisting or the section- The construction method innovatively adds two H-shaped steel beams to the frame below the coal-bucket girder, and suspends the cone on the steel beam before the construction of the coal-bucket girder, thereby avoiding the haul of the coal-bucket cone Bit, reducing the difficulty of cone installation, the temporary placement of the cone in the channel when the additional steel reinforcement, effectively ensuring the overall stability of the coal bucket cone mouth from the straight section of the coal bucket only 83cm, greatly reducing the installation time Of the lifting distance in the construction of coal bucket girder, the first beam reinforcement banding finished, and then install the straight section of the subsection, and finally set up the template and the construction of concrete, the template set up the beam at the end of the template to add additional reinforcement to ensure that the concrete construction When the template is solid and reliable.