Matsakaicin tsayin da za a yi amfani da shi wajen yin katako ba tare da masu fitar da kaya ba (tsarin tsayawa kai tsaye) galibi yana da iyaka ta hanyar buƙatun kwanciyar hankali, tare da manyan ƙuntatawa da aka samo daga ƙa'idodin injiniya da ƙa'idodin aminci:
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Iyakar Faɗin Tushe zuwa Tsawo
Scaffolds dole ne su kasance daidai daRabon faɗin tsayi-zuwa-tushe 4:1misali:- Faɗin tushe na mita 1.5 → Matsakaicin tsayi = 6m(ƙafa 19.7)
- Faɗin tushe na mita 2.4 → Matsakaicin tsayi = 9.6m(ƙafa 31.5)
Wannan yana hana tururuwa a ƙarƙashin kaya ko ƙarfin iska.
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Matakan Musamman na Kayan Aiki
- Tsarin firam na ƙarfe H: Yawanci an rufe shi da 9-12m(ƙafa 30–40) lokacin amfani da haɗin haɗin gwiwa na diagonal da firam mai tauri.
- Gilashin aluminum: Ƙananan iyaka na ~ 7.5m (ƙafa 24.6) saboda raguwar taurin tsarin idan aka kwatanta da ƙarfe.
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Mahimman Bukatun Tsaro
Tsawo da suka wuce 5mbuƙatar gama gari:- Lissafin tsarin da aka tabbatar ta hanyar injiniya
- Ci gaba da duba daidaiton tsaye (juriya ≤1/200 na tsayi)
- Ware kayan aiki masu ƙarfi (misali, masu ɗagawa) ba tare da ƙarin daidaito ba.
⚠️ Bin Dokoki na Yanki :
- New Zealand ta ba da takardar shaidar injiniya don gina gine-gine sama da mita 5.
- Ma'aunin Burtaniya (HSE) sun haramta ginshiƙai marasa ƙarfi waɗanda suka fi mita 9.6 ba tare da la'akari da faɗin tushe ba.
