Inkqubo yokuBonisa kwiSteel Structure

Iyintoni Inkqubo yokuJonga kwiSteel Structure?

Izakhiwo zesakhiwo sentsimbi zisetyenziswa kakhulu kumashishini ahlukeneyo njenge zokugcina kwaye zocweyo, kuba zinika amandla abalaseleyo esakhiwo, ukuxhathisa kwenyikima, kunye nokumelana nomlilo.

Inkqubo yokuqhankqalaza lilungu lesiseko sesibini kwisakhiwo sentsimbi, kodwa ikwayinxalenye eyimfuneko.

Kwizakhiwo zentsimbi yesakhelo se-portal, inkqubo yokuqinisa idlala indima ebalulekileyo. Oku kubonakala ikakhulu kwi:

• Kwizakhiwo ezinezicwangciso zomgangatho onzima, inkqubo yokuqinisa i-bracing iphinda iququzelele ukulungiswa kokuqina kwesakhiwo, ukwenza isakhiwo sibe yinto efanayo kwaye sigxininise ngokufanelekileyo, kunye nokuphucula ingqibelelo yayo yonke.

• Ukuqinisekisa ukuzinza kwesakhiwo esipheleleyo kunye namacandelo ngamanye.

• Ukudlulisa imikhosi ethe tye kwisiseko kunye nemisebenzi yofakelo oluncedisayo, njl.

Inkqubo yokuJonga iKholam

Ukuqinisa phakathi kwekholamu licandelo elibalulekileyo kwiinkqubo zesakhiwo sentsimbi ezisetyenziselwa ukomeleza uzinzo kunye nokudlulisa imithwalo ethe tye (efana nomthwalo womoya kunye namandla enyikima).

Ngokuqhelekileyo ibekwe phakathi kweentsika zentsimbi ezikufutshane. Umsebenzi walo kukuphucula ukuqina kwecala kunye nokunyaniseka okupheleleyo kwesakhiwo, ukunciphisa ubude obubaliweyo beekholomu, kunye nokuthintela ukungazinzi kwecala okanye ukuguqulwa kweekholomu phantsi koxinzelelo.

Eyona misebenzi ingundoqo yokudibanisa ikholamu yile:

• Ukuxhathisa amandla eLateral: Ukuxhathisa imithwalo ethe tye (imithwalo yomoya, amandla e-seismic) kunye nokunciphisa i-structural lateral displacement.
• Ukuqinisekiswa kozinzo: Ukunciphisa ukuchithwa kwe-lateral yeentsika, ukunciphisa umlinganiselo we-slenderness weentsika, kunye nokuphucula ukuzinza koxinzelelo.
• Ukudluliselwa komthwalo: Ukudlulisa imithwalo ethe tyaba kwisiseko okanye kwamanye amalungu axhathisayo asecaleni (njengeendonga zokucheba).
• Ukuzinza kwesiteji sokwakha: Ukubonelela ngokuzinza kwexeshana ngexesha lokufakwa kwesakhiwo sensimbi.

Ngokusekwe kujoliso lwazo, ukubrakana phakathi kwekholamu kungahlelwa ngokweendidi ezimbini: ibracing enqamlezileyo kunye nelongitudinal bracing.

• I-Transverse bracing: I-Perpendicular to the longitudinal axis of the building, ukumelana ne-lateral horizontal forces (njengemithwalo yomoya).
• I-longitudinal bracing: Ukulungelelaniswa kunye ne-axis ye-longitudinal yesakhiwo, ukuchasana ne-longitudinal horizontal forces.

Izixhaso ze-longitudinal zihlulwe zibe zixhaso zentsimbi ezijikelezayo, i-angle steel supports.

Kwizicelo ezisebenzayo, ifom efanelekileyo yokubethelwa kwekholomu kufuneka ikhethwe ngokusekelwe kwisakhiwo esithile sokwakha kunye neemfuno. Ngaphezu koko, iikhowudi ezifanelekileyo kunye nemigangatho kufuneka ilandelwe ngexesha loyilo kunye nenkqubo yokwakha ukuze kuqinisekiswe ukhuseleko kunye nokuzinza kwekholomu yokubethelwa.

Kungcono ukusebenzisa uhlobo olunye lwe-inter-column bracing kwisakhiwo esifanayo, kwaye akucebisi ukudibanisa iindidi ezininzi ze-inter-column bracing. Ukuba ngenxa yeemfuno zokusebenza ezifana nokuvula iingcango, iifestile okanye ezinye izinto, ukuxhaswa kwesakhelo esiqinileyo okanye inkxaso ye-truss ingasetyenziswa. Xa inkqubo yokuxhasa kufuneka isetyenziswe ngokudibeneyo, ukuqina kufuneka kungqinelane kangangoko kunokwenzeka. Ukuba i-rigidity ayikwazi ukudibana, i-longitudinal horizontal force ethwalwa yinkxaso nganye kufuneka ihlalutywe ngokucacileyo ukuze kuqinisekiswe ukuzinza kunye nokhuseleko lwe-symmetry yesakhiwo.

I-Angle Brace

I-Angle braces yodwa kwi-slid-web portal rigid frame light light structure izakhiwo zentsimbi. I-angle brace icwangciswe phakathi kwe-flange ephantsi yefreyimu eqinile ethambekele kwi-beam kunye ne-purlin okanye phakathi kwe-flange yangaphakathi yekholamu yecala eliqinileyo kunye nomqadi wodonga. Ixhasa uzinzo lwesakhelo esiqinileyo imiqadi ethambekeleyo kunye nemihlathi yesakhelo esiqinileyo. I-angle brace lilungu elincedisayo elingabi yinkqubo ngokuzimeleyo.

Umsebenzi wesakhelo esiqinileyo esithambekele kwi-angle ye-angle brace kukuthintela ukungazinzi kwecala lomqadi othambekileyo xa iphiko elisezantsi licinezelwe.

Intsimbi ye-Angle isetyenziselwa ukubethelwa kwekona, kwaye i-angle phakathi kwekona kunye ne-purlin okanye umqadi wodonga akufanele ube ngaphantsi kwe-35 °, kwaye i-angle encinci yentsimbi L40 * 4 ingasetyenziswa. Iibhotshi zekona zibotshwe kwiiplanga okanye kwiikholamu zecala kunye ne-purlins okanye iindonga zodonga.

Ngokubanzi, i-angle brace kufuneka ifakwe kwisithuba esipheleleyo sesakhelo esiqinileyo se-beam ethambekele, ngokukodwa kuqwalaselwa ukuba kungenzeka ukuba i-flange ye-boam ixinzelelwe phantsi kwesenzo somthwalo womoya, inokufakwa kuphela kwindawo apho i-low plange ifakwe khona. i-flange ye-beam ixinzelelwe kufuphi nenkxaso.

I-Bracing System Setting Principles

• Ngokucacileyo, ngokufanelekileyo kwaye ngokulula ukuhambisa umthwalo welongitudinal, kwaye unciphise indlela yokuhambisa amandla kangangoko kunokwenzeka;
• Ukuqinisekisa ukuzinza kwe-out-of-plane ye-structural system, kunye nokubonelela ngamanqaku enkxaso yecala lokuzinza ngokubanzi kwesakhiwo kunye namacandelo;
• Kukulungele ukufaka isakhiwo;
• Hlangana namandla ayimfuneko kunye neemfuno zokuqina kwaye ube nonxibelelwano oluthembekileyo.