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مقررات ملی ساختمان@Building_code P.22135
BUILDING_CODE Telegram 22135
آزمونک شماره ۷۸۷

کدام یک از عبارات زیر برای پیچ‌های پرمقاومت که در سازه‌های فولادی در اتصال پیش تنیده استفاده می‌شوند، صحیح نیست؟
Anonymous Quiz
مطابق استاندارد EN14399-3 پیچ‌های HR شامل مجموعه پیچ‌های 8.8 و 10.9 می‌باشند
مطابق استاندارد EN14399-4 پیچ‌های HV شامل مجموعه پیچ‌های 8.8 و 10.9 می‌باشند
مطابق استاندارد ASTMF3125 پیچ‌ها شامل ردۀ A325 و A490 می‌باشند
پیچ‌های پرمقاومت از فولادهای پرمقاومت با تنش کششی نهایی 800 تا 1200 مگاپاسکال ساخته می‌شوند
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