The invention discloses a construction and installation method for an FPSO upper module buttress. The construction and installation method comprises the following steps that firstly, a jig frame is manufactured; step 2, fixing a buttress top panel and scribing a component mounting position; step 3, scribing a component mounting position; 4, mounting a buttress cross-shaped reinforcing plate; 5, coamings on the periphery of the buttress are installed; step 6, buttress measurement; seventhly, all buttress installation positions are marked; step 8, welding each buttress; and 9, detecting the position precision of each buttress. The buttress top panel is sealed through the jig frame, and when the cross reinforcing plate and the coaming are welded, the buttress top panel has extremely small deformation, so that the levelness of the buttress top panel and the dimensional precision of the buttress are ensured; according to the method, the mode of detecting while mounting is adopted, the welding process is strictly executed, welding is monitored in real time, adjustment is conducted in time once out-of-tolerance is found, and the size precision and the mounting precision of the buttress are greatly improved.

    本发明公开了一种FPSO上部模块支墩的建造安装方法,包括以下步骤:步骤1、胎架制作;步骤2、固定支墩顶面板及构件安装位划线;步骤3、构件安装位划线;步骤4、安装支墩十字加强板;步骤5、安装支墩四周的围板;步骤6、支墩测量;步骤7、各个支墩安装位划线;步骤8、各个支墩的焊接;步骤9、各支墩的位置精度检测。本发明通过胎架对支墩顶面板进行封固,在进行十字加强板和围板焊接时,使支墩顶面板具有极小的变形量,从而确保了支墩顶面板的水平度和支墩的尺寸精度;本发明采用边安装边检测的方式,严格执行焊接工艺并对焊接进行实时监控,一旦发现超差应立刻进行及时调整,大大提高了支墩的尺寸精度和安装精度。


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    Title :

    Construction and installation method of floating production storage and offloading (FPSO) upper module buttress


    Additional title:

    一种FPSO上部模块支墩的建造安装方法


    Contributors:
    QIU MING (author) / HE YANPING (author) / LYU YIBIN (author) / LI MINGZHI (author) / WANG ZHENGANG (author) / ZHANG YONGKANG (author) / ZHOU ZHIJIE (author)

    Publication date :

    2024-10-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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