yig’ma temirbeton zinapoya marshi va plitasini hisoblash va loyihalash

yig’ma temirbeton zinapoya marshi va plitasini hisoblash va loyihalash loyihalash uchun berilganlar: zinapoya marshining eni 1,2 m, binoning qavati balandligi 3 m; zinapoya marshining qiyalik burchagi α ≈ 30o ; pog’onalarning o’lchamlari 15x30sm; zinapoya marshi b25 sinfli og’ir betondan tayyorlanadi; bo’ylama armaturasi sinfi a – ii, ko’ndalang armatura a–i; armatura to’rlari - bp – i sinfli armatura simlaridan tayyorlanadi. b25- sinfli betonning ko’rsatkichlari: rb =14,5 mpa; rbt=1,05 mpa; eb=27000 mpa. a – ii sinfdagi armatura uchun: rs=280 mpa;es=210000 mpa. a–i sinfdagi armatura uchun: rsw= 175 mpa; es= 210000 mpa. bp– i sinfli armatura uchun (ø4mm ) rs =370 mpa; rsw = 265 mpa; es =170000 mpa yuklar va zo’riqishlarni aniqlash zinapoya marshining gorizontal proektsiyadagi xususiy og’ir...

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