Katswiri Wapamwamba Wachitsulo Woponderezedwa Wapamwamba Wopangidwa ndi Concrete Strand
Chingwe chachitsulo chokhazikika ndi chingwe chachitsulo chopangidwa ndi 2, 3, 7 kapena 19 mawaya achitsulo olimba kwambiri, ndipo adalandira chithandizo chothandizira kupsinjika (mankhwala okhazikika), oyenera konkriti yokhazikika kapena zolinga zofanana.
Makhalidwe akuluakulu a zingwe zachitsulo zokhazikika ndi mphamvu zapamwamba, ntchito yabwino yopumula, komanso yowongoka ikavumbulutsidwa. Gulu lamphamvu lamphamvu ndi 1860 MPa, ndipo pali magiredi amphamvu monga 1720, 1770, 1960, 2000, ndi 2100 MPa. Mphamvu zokolola zachitsulo ichi ndizokwera kwambiri.
Chingwe chachitsulo cha carbon-high-carbon steel chimakokedwa mu waya wachitsulo pambuyo pa chithandizo chapamwamba, ndiyeno mawaya angapo achitsulo amapindika kukhala zingwe molingana ndi kamangidwe kachitsulo kachitsulo, ndiyeno amapangidwa kupyolera mu njira yochepetsera nkhawa. Pofuna kukulitsa kukhazikika, waya wachitsulo ukhoza kukhala ndi zitsulo kapena zitsulo zosapanga dzimbiri kapena zokutira, monga galvanizing, epoxy coating, ndi zina zotero. Chingwe chachitsulo chopangidwa ndi prestressed chimadutsa njira yoponderezedwa ndi nkhungu pambuyo pokhazikika, kapangidwe kake kamakhala kocheperako ndipo pamwamba pake ndi koyenera kumangirira. Kuti mupange zingwe zachitsulo zosamangika (zingwe zachitsulo zosamangika) gwiritsani ntchito zingwe zachitsulo zomwe zidakhazikika kale, zokutidwa ndi mafuta odana ndi dzimbiri kapena sera ya parafini, ndiyeno wokutidwa ndi polyethylene yapamwamba kwambiri (HDPE).
Zimango katundu
| Dn/mm | Kulimba kwamakokedwe Rm/MPa | Mphamvu yayikulu yachitsulo chonse cha strandFm/KN | Mphamvu yowonjezera yosawerengeka yotchulidwa FP0.2/KN | Kuwonjeza kwa mphamvu zonse (L0≥500 mm) Agt/% | Kuchita mopupuluma kupsinjika | Executive muyezo | |
| Katundu woyambirira ndi wofanana ndi kuchuluka kwakukulu kwa dzina /% | Kuchepetsa kupsinjika pambuyo pa 1000hr /% | ||||||
| 15.2 | ≥1860 | ≥260 | ≥234 | ≥3.5 | 70 | ≤2.5 | GB/T5224-2014 |
| 80 | ≤4.5 | ||||||
| 15.24 | ≥1860 | ≥260.7 | ≥234.6 | ≥3.5 | 70 | ≤2.5 | Chithunzi cha ASTMA416-2003 |
Kukula ndi kupatuka
| Dn/mm | Kupatuka kovomerezeka kwa diameter/mm | Malo opangira magawo sn/mm2 |
| 15.20 | + 0.40 -0.20 | 140 |
| 15.24 | + 0.65 -0.15 | 140 |
Tsatanetsatane Onetsani
