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- قالب بايد موقعي برداشته شود كه بتن بتواند نيروي وارده را تحمل كند و تغيير شكلهاي آن از تغيير شكلهاي پيش بيني شده تجاوز نكند.
- عمليات قالببرداري و برچيدن پايهها بايد گام به گام و بدون اعمال نيرو و ضربه طوري باشد كه اعضا و قطعات بتني تحت اثر بارهاي ناگهاني قرار نگيرند، بتن صدمه نبيند و ايمني و قابليت بهرهبرداري مخدوش نشود.
- ۳٫ پايههاي اطمينان را نبايد قبل از آنكه اعضا و قطعات بتني توان كافي براي تحمل وزن خود و بارهاي وارد را كسب كنند، جمع كرد. شمع برداري بايد به ترتيبي باشد كه از ايجاد ضربه، برون محوري و برون مركزيه...
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