Rebar - chinhu chakakosha pakuvaka

I. Magadzirirwo edhayamita (Main Application Range) Magadzirirwo edhayamita eHRB400E rebar anofanira kunyatsotevedzera "Hot-rolled Ribbed Steel Bars for Reinforced Concrete" (GB/T 1499.2-2018). Ratidziro yedhayamita ndeye 6mm-50mm, ichifukidza mamiriro mazhinji ekushushikana muinjiniya. Madhayamita akasiyana anoenderana nezvinodiwa zvakasiyana zvekushandisa, seizvi: Dhayamita diki (6mm-12mm): Inonyanya kushandiswa kune zvikamu zvidiki, mastirrup, uye ma distribution bars, akadai se floor slab distribution bars, wall tie bars, lintel stirrups, nezvimwewo. Magadzirirwo akajairika ndeaya 6mm, 8mm, 10mm, uye 12mm; Dhayamita yepakati (14mm-25mm): Inonyanya kushandiswa, yakakodzera zvikamu zvinotakura stress zvakaita semafuremu, makoramu efuremu, nhengo dzemadziro dzakachekwa, uye pile caps. Magadzirirwo akajairika ndeaya 14mm, 16mm, 18mm, 20mm, 22mm, uye 25mm; Dhayamita hombe (28mm-50mm): Inonyanya kushandiswa muzvivakwa zvakakura-span, zvikamu zvinorema kana zvikamu zvinotakura zvinhu zvakawanda, zvakaita semakoramu efuremu akakura, matanda makuru emabhiriji, makeji esimbi ehwaro hwemurwi, uye kusimbiswa kwehwaro hwemidziyo mikuru. Zvinozivikanwa zvakafanana ndeizvi: 28mm, 32mm, 36mm, 40mm uye 50mm. II. Zviyero zvekunze uye maParameter eRib (Zvinodiwa Zvinodiwa)
Iyo HRB400E rebar ine chikamu chakatenderera chine mbabvu dzakatevedzana nehurefu hwayo. Mbabvu dzakakamurwa kuita mbabvu dzakareba (dzakafanana ne rebar axis) uye mbabvu dzakachinjika (dzine kona yakati kune axis). Maparamita anofanirwa kusangana nezvinodiwa zvinotevera kuti ave nechokwadi chekuti kongiri inoshanda pamwe chete uye kuti ikwanise kugadzika nekongiri:
Dhizaini yeMbabvu Yakachinjika:
Angle: Angle β iri pakati pembabvu inochinjika nerebar axis inofanira kunge iri pakati pe45° ne60°. Kana dhayamita yerebar iri d ≤ 12mm, kona inogona kukwidziridzwa zvakakodzera kusvika 30°.
Kupatsanurana: Nzvimbo yepakati pembabvu l inofanira kugadziriswa kuti ienderane nedhayamita. Semuenzaniso, l ≤ 12mm kana d = 6mm, l ≤ 20mm kana d = 25mm, uye l ≤ 25mm kana d = 50mm. Kutsauka kwenzvimbo yepakati pembabvu muchinjikwa we rebar imwe chete hakufanirwe kudarika ±10%.
Kureba: Kureba kwembabvu dzakachinjika h kunofanira kusangana nezvinodiwa pakusimba uye kubatana. Semuenzaniso, h ≥ 0.8mm kana d = 10mm, uye h ≥ 0.8mm kana d = 20mm. Kana h ≥ 1.5mm, uye d = 40mm, h ≥ 2.4mm, uye kureba chaiko kwakayerwa hakufanirwe kunge kuri pasi pe90% yemutengo wakajairika. Kugadzirwa kwembabvu dzeLongitudinal: Huwandu: Rebar yega yega inoda mbabvu mbiri dzakachinjika dzakagoverwa zvakaenzana. Upamhi b hwembabvu dzakachinjika hunofanira kuenderana nedhayamita, semuenzaniso, b = 2.0mm kana d = 16mm, b = 3.0mm kana d = 32mm; Kureba: Rib dzakachinjika dzinofanira kumhanya nehurefu hwese hwerebar pasina mipata kana kukanganiswa, uye pamusoro pembabvu dzakachinjika dzinofanira kuchinjika zvakanaka kuenda pamusoro pembabvu dzakachinjika kudzivirira kushushikana kunokonzerwa nemipendero yakapinza. Kutsauka kwechikamu: Kutsauka kwedhayamita chaiyo ye rebar kunofanirwa kunge kuri mukati me ±0.4mm (semuenzaniso, kune rebar ine dhayamita ye20mm, dhayamita chaiyo yakayerwa inofanira kunge iri pakati pe19.6mm ne20.4mm); Kutsauka kweperimeter yechikamu hakufanirwe kudarika ±2%, uye ellipticity (musiyano uripo pakati pemadhayamita epamusoro neashoma echikamu) inofanira kunge iri ≤0.4mm kuti ive nechokwadi chekuti chikamu chakafanana uye kupararira kwakafanana kwekumanikidzwa.