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GB/T7284-1998中5.2.2的规定。

Every lateral upright with auxiliary upright and lateral plate can be regarded as a pillar. They must have the strength to bear stacking load acting on a pillar. The dimensions and the calculation method of transversal surface should according to the stipulation 5.2.2in GB/T7284-1998.

6.2.3梁承Grider grillage 梁承起支撑顶盖梁的作用，在横梁下方，由上框木用钢钉将梁承钉在立柱上 。梁承结构如图2所示。

Its role is to support roof beam. It is below the beam. By box wood to nail grider grillage on the pillar with steel nail. The structure of grider grillage is shown in picture 2.

图2 梁承结构

Picture 2 the structure of grider grillage

6.3顶盖 Header

顶盖装在侧框和端框上起支撑顶盖载荷的作用，作为横梁、梁撑，固定钢缆的加强材，用钉子钉在侧框和端框上。顶盖结构如图3。

Header is installed on the side frame and end frame to support the roof load. As beam, beam support, anchor cable reinforcement, to use a nail on the side frame and end frame. The structure of header is shown in picture 3.

图3 顶盖结构

Picture 3 the structure of header

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6.3.1 横梁 Beam

横梁支撑顶盖载荷，同时承受钢缆起吊时所产生的压缩作用，横梁中心间隔原则上不大于600mm，如果上框木正好是起吊绳索通过的部位，或当木箱较宽时，应对上框木进行加强。加固方法详见GB/T 7284。

Beam supports roof load, at the same time bear the compression function of the produced during the wirerope hoist. The beam center spacing, in principle, is not more than 600 mm. If upper ledge wood is just the part lifting rope go through, or when the case is wider, we must strength upper ledge wood. Strengthening method is shown in GB/T 7284.

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