штампування

The experience of inclined cross-sections in the zones of influence of transverse forces and punching loads has been studied. The results of experimental studies of inclined cross-sections of protective structures in the area of influence of local emergency load on punching are presented. The article presents the reinforcement and strength of inclined cross-sections at the angle of destruction γ=40°. The analysis of the results was carried out and recommendations were developed for the design of inclined cross-sections of shells in the punching zone.

Проведено аналіз конструкції та креслення пуансона, який забезпечує гнуття деталі у процесі її виготовлення штампуванням. Особливу увагу приділено аналізу варіанта пуансона, який у процесі зміни умов експлуатації, що призвело до зміни навантаження, руйнувався. Запропоновано конструкцію пуансона, яка витримує змінені умови роботи.

The article is devoted to the stress-strain behavior, cracking and bearing strength of plain and reinforced non-autoclaved foam concrete slab spunched through rigid stamp. Experimental researches were held on slabs freely supported along the contour. Authors made an effort to determine the level of loading that corresponded the start of cracking and it was set at the level of 0,6 Ncr . There was also evaluated the ultimate tensility of foam concrete.