Tuubada La Galiyey ee Birta Laba Jibaaran ee La Galiyey ee Bixiyeyaasha Tuubada La Galiyey ee 2mm Dhumucda Kulul ee Birta Laba Jibaaran ee La Galiyey
Bir afar geesood ah
Bir laba jibbaaran: waa mid adag, oo leh baar. Waxaa laga soocay tuubo laba jibbaaran, god leh, oo ah tuubo. Bir (Birta): waa walax laga sameeyay ingots, billets ama bir iyadoo cadaadis lagu farsameynayo qaabab, cabbirro iyo sifooyin kala duwan oo loo baahan yahay. Saxan bir ah oo dhexdhexaad ah, saxan bir ah oo khafiif ah, xaashi bir ah oo silikoon koronto ah, bir xarig ah, bir tuubo bir ah oo aan kala go 'lahayn, tuubo bir ah oo la alxamay, alaabada birta iyo noocyo kale.
Shaxda Miisaanka Aragtida ee Birta Afargeeslaha ah
| Dhererka dhinaca (mm) | Bedka qaybaha isgoyska (cm2) | Miisaanka aragtiyeed (kg/m) | Dhererka Dhinaca (mm) | Bedka qaybaha isgoyska (cm2) | Miisaanka aragtiyeed (kg/m) |
| 5mm | 0.25 | 0.196 | 30mm | 9.00 | 7.06 |
| 6mm | 0.36 | 0.283 | 32mm | 10.24 | 8.04 |
| 7mm | 0.49 | 0.385 | 34mm | 11.56 | 9.07 |
| 8mm | 0.64 | 0.502 | 36mm | 12.96 | 10.17 |
| 9mm | 0.81 | 0.636 | 38mm | 14.44 | 11.24 |
| 10mm | 1.00 | 0.785 | 40mm | 16.00 | 12.56 |
| 11mm | 1.21 | 0.95 | 42mm | 17.64 | 13.85 |
| 12mm | 1.44 | 1.13 | 45mm | 20.25 | 15.90 |
| 13mm | 1.69 | 1.33 | 48mm | 23.04 | 18.09 |
| 14mm | 1.96 | 1.54 | 50mm | 25.00 | 19.63 |
| 15mm | 2.25 | 1.77 | 53mm | 28.09 | 22.05 |
| 16mm | 2.56 | 2.01 | 56mm | 31.36 | 24.61 |
| 17mm | 2.89 | 2.27 | 60mm | 36.00 | 28.26 |
| 18mm | 3.24 | 2.54 | 63mm | 39.69 | 31.16 |
| 19mm | 3.61 | 2.82 | 65mm | 42.25 | 33.17 |
| 20mm | 4.00 | 3.14 | 70mm | 49.00 | 38.49 |
| 21mm | 4.41 | 3.46 | 75mm | 56.25 | 44.16 |
| 22mm | 4.84 | 3.80 | 80mm | 64.00 | 50.24 |
| 24mm | 5.76 | 4.52 | 85mm | 72.25 | 56.72 |
| 25mm | 6.25 | 4.91 | 90mm | 81.00 | 63.59 |
| 26mm | 6.76 | 5.30 | 95mm | 90.25 | 70.85 |
| 28mm | 7.84 | 6.15 | 100mm | 100.00 | 78.50 |
Dhererka birta afargeeska ah waxaa lagu qeexay sidan soo socota.
A. Dhererka caadiga ah (aan ahayn dherer go'an).
Birta caadiga ah.
Dhererka dhinaca ≤ 25mm ................................ ......................... dhererka 5 ~ 10m
Dhererka dhinaca 26~50mm .... ............................ .......... Dhererka 4~9m
Dhererka dhinaca 53~110mm .... ................................ .......... Dhererka 4~8m
Dhererka dhinaca ≥120mm .... ................................ ........... Dhererka 3 ~ 6m
Bir tayo sare leh.
Cabbirro dherer dhinac oo kala duwan ................................ ........... dherer 2 ~ 6m
B. Dherer go'an (oo lagu go'aamiyay qandaraaska)
C. Dherer badan (oo lagu go'aamiyay qandaraaska)
Isticmaalka Caadiga ah
Birta aan daxalka lahayn waxaa inta badan loo isticmaalaa dhammaystirka, sida albaabada iyo daaqadaha.
Badeecadaha ugu Muhiimsan
Bir laba jibbaaran oo kulul oo la duubay
Bir laba jibbaaran oo kulul oo la duubay, waa bir la duubay ama lagu farsameeyay qayb laba jibbaaran oo isdhaafsan. Bir laba jibbaaran waxaa loo qaybin karaa laba nooc: mid kulul oo la duubay iyo mid qabow oo la duubay; bir laba jibbaaran oo kulul oo la duubay waxay leedahay dherer dhinac ah oo ah 5-250mm iyo bir laba jibbaaran oo qabow oo la duubay waxay leedahay dherer dhinac ah oo ah 3-100mm.
Bir afar geesood ah
[bir laba jibbaaran] bir la duubay ama loo shaqeeyay qayb isgoys ah oo afar geesle ah
Cufnaanta birta waa: 7.851g/cm3
Xisaabinta miisaanka aragtiyeed ee birta
Halbeegga cabbirka ee lagu xisaabinayo miisaanka aragtiyeed ee birta waa kiilogaraam (kg). Qaacidada aasaasiga ah waa.
W (miisaanka, kg) = F (aagga isgoyska mm2) × L (dhererka, m) × ρ (cufnaanta, g/cm3) × 1/1000
Bir laba jibbaaran waxaa loo qaybin karaa laba nooc: bir laba jibbaaran oo kulul oo la duubay iyo bir qabow oo la duubay; bir laba jibbaaran oo kulul oo la duubay oo dhererkeedu yahay 5-250mm iyo bir laba jibbaaran oo qabow oo la duubay oo dhererkeedu yahay 3-100mm.
Bir afargeesle ah oo qabow lagu sawiray
Bir laba jibbaaran oo qabow lagu jiido waxaa loola jeedaa birta qabow lagu jiido oo leh qaab laba jibbaaran oo foorno ah
Bir laba jibbaaran oo qabow lagu jiido waxaa loola jeedaa bir qabow lagu jiido oo leh qaab laba jibbaaran.
Birta qabow ee la jiido waa bir si qasab ah loo fidiyo heerkulka qolka iyadoo cadaadis la saarayo oo ka badan xoogga dhibicda wax soo saarka ee birta asalka ah si loo soo saaro isbeddel balaastig ah oo birta ah si loo hagaajiyo xoogga dhibicda wax soo saarka ee birta loona badbaadiyo birta ujeedada.
Sawir-gacmeedka qabow waa isticmaalka tignoolajiyada sii deynta qabow, iyada oo loo marayo qiiqa saxda ah, soo saar dhammaan noocyada birta wareegsan ee saxda ah, birta laba jibbaaran, birta fidsan, birta lix-geesoodka ah iyo birta kale ee qaabaysan.
Fikradda sawir qabow oo ah biraha ulaha: si loo badbaadiyo birta, loo hagaajiyo xoogga wax soo saarka biraha ulaha si loo helo cadaadis jiidis ah oo ka baxsan xoogga wax soo saarka iyo ka yar xoogga ugu dambeeya ee lagu fidin karo biraha ulaha, si dhaqanka isbeddelka balaastikada ah loogu yeero sawir qabow oo biraha ulaha ah.
Bir aan lahayn bir bir ah oo afar geesle ah
[bir laba jibbaaran] oo la duubay ama loo farsameeyay qayb isgoys ah oo afar geesle ah
Bir aan lahayn bir bir ah oo afar geesle ah
Xisaabinta miisaanka aragtiyeed ee birta
Halbeegga cabbirka ee lagu xisaabinayo miisaanka aragtiyeed ee birta waa kiilogaraam (kg). Qaacidada aasaasiga ah waa.
W (miisaanka, kg) = F (aagga isgoyska mm2) × L (dhererka, m) × ρ (cufnaanta, g/cm3) × 1/1000
Isticmaalka alaabta
Birta aan lahayn birta afargeeska ah waxaa inta badan loo isticmaalaa dhammaystirka, sida albaabada iyo daaqadaha.
Qeexitaanka Badeecada
Bir afargeesle ah oo dhalaalaya oo qabow lagu sawiray: 3 × 3mm-80 × 80mm
Bir afargeesle ah oo qalloocan
Dhexroorka birta laba jibbaaran ee la qalloociyey waa 4mm - 10mm, qeexitaannada caadiga ah waa 6*6mm iyo 5*5mm, kuwaas oo laga soo qalloociyay walxaha gariiradda dhexroorkoodu yahay 8mm iyo 6.5mm oo la sawiray oo la qalloociyey siday u kala horreeyaan.
Qalabka: Q235.
Xuddunta: Xuddunta caadiga ah ee 120mm/360 digrii, xuddunta caadiga ah waa mid qurux badan oo wax ku ool ah.
Isticmaalka: Si ballaaran ayaa loogu isticmaalaa shabagga birta, qaab-dhismeedka birta ama sibidhka la xoojiyay si loogu beddelo birta dib-u-hagaajinta.
Faa'iidooyinka: birta laba jibbaaran ee qalloocan iyo kuwa qalloocan waxay kordhisaa xoogga jiidista ee qaab-dhismeedka, muuqaalka quruxda badan, taasoo si weyn u yareynaysa kharashyada raasamaalka; geesaha fiiqan, dhexroorka saxda ah.
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