Bhawa reSimbi

Simbi yeA615 giredhi 40 inobatsira zvikuru kana zvinhu zvekuvaka zvichifanira kutsungirira kumanikidzwa kwekongiri. Simba ndiro chinhu chikuru chinosiyanisa pakati pemhando mbiri idzi dze rebar. Simba rekusimba diki resimbi yeA615 giredhi 40 i70.05 ksi, uye simba rekusimba diki re40 ksi.

Tsanangudzo iyi inosanganisira simbi dzakakanganisika uye dzisina simbi dzinowanikwa dzakachekwa uye dzakagadzirwa nesimbi dzekusimbisa kongiri. Simbi dzine alloy alloy, dzakadai sedzinoenderana neAssociation for Iron and Steel Technology uye Society of Automotive Engineers series yesimbi dze alloy, dzinobvumidzwa, chero bedzi chigadzirwa chekupedzisira chichizadzisa zvimwe zvese zvinodiwa zvetsanangudzo iyi.

ASTM A615 chiyero chekuAmerica chesimbi dzakakanganisika, dzinowanzo kuwanikwa mudhayamita kubva pa9.5 mm kusvika 43 mm uye hurefu huri pakati pe6 m kusvika 12 m. Idzi simbi dzinowanzo gadzirwa nesimbi yakakanganisika kana kuti isina kabhoni.

ASTM A615 chiyero chekuAmerica chesimbi dzakakanganisika, dzinowanzo kuwanikwa mudhayamita kubva pa9.5 mm kusvika 43 mm uye hurefu hunobva pa6 m kusvika 12 m. Idzi simbi dzakakanganisika, dzinowanzo gadzirwa nesimbi yakakanganisika kana kuti isina kabhoni, dzinoshandiswa zvakanyanya mumabasa akasiyana-siyana ekuvaka.

Simbi yemhando yeB500A inowanzo shandiswa pakugadzira simbi ine mambure, nepo simbi yemhando yeB500B ichishandiswa pakugadzira simbi. Simbi yeB500C haiwanzo shandiswa, uye zvinokurudzirwa kuti mainjiniya vekuvaka vaone kana simbi yemhando yeB500B ichigona kutsiviwa neB500C, sezvo B500C inowanzo da mari yakawanda.

BS4449 imwe nzira yekuisa simbi dzakakanganisika, iyo inorongwawo zvichienderana nezvinodiwa neEuropean. Idzi simbi dzinogadzirwa kuburikidza nekupisa, zvichiratidza kukodzera kwadzo pamabasa akajairika, akadai semapurojekiti ekuvaka akajairika.

Bhara rakakanganisika, rinowanzozivikanwa se rebar (chidimbu chekusimbisa bhara), ibhara resimbi kana mesh yewaya dzesimbi dzinoshandiswa semidziyo yekumanikidza mukongiri yakasimbiswa uye zvivakwa zvemabwe zvakasimbiswa. Basa rayo guru nderekusimbisa nekuchengetedza kongiri iri mukumanikidzwa. Pamusoro pebhara rakakanganisika rinowanzo gadzirwa kuti rigadzire kubatana kwakasimba nekongiri.

Matanda esimbi akafukidzwa ne epoxy resin anogadzirwa nekuisa chifukidziro chekudzivirira che epoxy resin pamusoro pematanda esimbi akajairwa uchishandisa nzira yekupisa inopisa nemagetsi. Chifukidziro ichi chinopa simba rekudzivirira ngura yemakemikari uye hachisangani nemaacids nealkalis. Pamusoro pezvo, chinoita kuti pasave nekupindira kwemvura.

Simbi inosimbisa yakagadzirwa nesimbi inonzi galvanized reinforcement simbi ine zinc metal yakavharwa ne zinc metal. Iyi zinc coating inoshanda sechidziviriro kubva kuzvinhu zvinoparadza izvo rebar inoonekwa pairi kana yaiswa mukongiri.

B1499.2-2007 ndiyo mwero weEurope wesimbi dzesimbi. Kazhinji, GB1499.2-2007 simbi dzakajairwa dzakagadziriswa dzinogadzirwa uchishandisa nzira yekupisa yakamonerwa, zvichiita kuti dzive mhando inonyanya kushandiswa yesimbi dzakagadziriswa. Idzi simbi dzinowanikwa muhurefu hwakasiyana-siyana uye saizi, kubva pa6 mm kusvika 50 mm mudhayamita.

TMT, kana kuti Thermo Mechanical Treatment, zvinoreva maitiro e thermomechanical anoshandiswa kuvandudza hunhu hwesimbi. Aya ma TMT steel bars anowanzo shandiswa mukuvaka kuti ape dziviriro iri nani kubva kukudengenyeka kwenyika nedzimwe njodzi dzechisikigo. Zvakakosha kuti TMT steel bars dziratidze kudzivirira ngura kuitira kuve nechokwadi chekuchengetedzwa uye kugara kwenguva refu kwechivako.