Vaj tsev muaj kev sib txuas thiab tsis pub rooj kom dhau los | Duab ntev nyob rau hauv duab ntev

Daim ntawv rha ntej kub yog qhov chaw tshwj xeeb uas tsim los ua haujlwm tshaj tawm rau kev sib tso kub thiab txuas nrog cov khoom siv rau tsev, tig tiam siab kom tsis muaj kub dhau los ntawm qhov sib txuas. Txawv npaum li cas li daim ntawv rha kub tshaiv, cov khoom no tau tsim los muaj kev nyob deb siab, kev nyob ruaj siab, thiab tsis txuag hauv qab ntev, thaum twg kis tias muaj kev tso kub zoo (k-value ~0.3 W/m·K). Cov kev siv theej phem tshaj plaws yog rha kub ntawm qhov sib txuas ntawm tsev rau havjoog thiab lub kaum, cov havjoog rooj av, thiab cov support parapet—txhua qhov chaw uas muaj kub tshav tawm thiab muaj feem cuam tshuam rau kub ncaws. Cov khoom no feem ntau yog polymer composite, uas muaj polyamide (PA66) uas tau siv fiberglass ntau (piv txwv li 30-40%) vim nws muaj kev nyob ruaj siab siab (>100 MPa), kev nyob ruaj siab raws (>40 MPa), thiab kev tso kub zoo. Cov lwm qhov chaw tuaj yeem siv polymer concrete ntau lossis epoxy composite tshaiv. Kev tsim kho tau xav kom paub meej txog kev nyob (nyob qhov twg, nyob hauv, nyob saum, nyob sab laug) thiab kev tso kub (Psi-value) kom xaiv cov khoom thiab dej duab uas xwm yeem. Kev xaiv khoom yog tseem ceeb; cov khoom tau muab sau tseg thiab muab tso rau hauv formwork ua ntej poob taws, lossis muab ntxuav rau ntawm cov khoom hav, kom meej tias tsis muaj chaw sib tso kub. Los ntawm kev siv daim ntawv rha kub, lub tsev muaj kev tso kub zoo dua, txo kub tshav tawm, tsis muaj kub ncaws, thiab raug rau standard kub. Qhov kev pab pawg no yog qhov tseem ceeb rau kev tsim kho tsev tshaiv kub, kom cov neeg tsim kho thiab neeg kho tshuaj tsim tsev tshaiv kub tau zoo.