Iindaba zeShishini

Ngophuhliso olukhawulezayo lolungiselelo lwehlabathi kunye nolwakhiwo lwemizi-mveliso, iindawo zokugcina iimpahla zentsimbi ziye zaba lolona khetho lukhethwayo kwizakhiwo zale mihla zemizi-mveliso ngenxa yokuzinza kwazo, indawo enkulu, kunye nesantya sokwakha esikhawulezayo. Nangona kunjalo, xa ishishini likhetha indawo yokugcina impahla yentsimbi, kukho ingxaki ekufuneka iqwalaselwe: ngaba kufuneka ikhethe i-Multi span yesakhiwo sentsimbi yolwakhiwo okanye ulwakhiwo olulodwa lwesakhiwo sentsimbi?

Kwivolumu yangaphambili, sichaze iikhonsepthi ezisixhenxe ezisisiseko ezibandakanya i-slenderness ratio, i-diaphragm effect, i-shear lag kunye nomda wokuphambuka, ugxininise kwizihloko ezisisiseko ezifana nokuzinza kwamalungu, ukuhanjiswa komthwalo kunye nokuhlelwa kwecandelo. Njengomqulu wesibini wolu luhlu lwee-Q&A zentsimbi yobuchwephesha, eli nqaku liyaqhubeka nomxholo wangaphambili kwaye lijonge nzulu kwizifundo ezikhethekileyo ezigubungela iindlela zokuyila, iipropathi zezinto eziphathekayo kunye neendlela zokungaphumeleli, kubandakanywa noyilo lweplastiki, ukusetyenziswa kwamandla e-post-buckling, uhlalutyo lwe-second-order, i-Bauschinger effect kunye nokuphuka kwe-brittle.

Uyilo, ulwakhiwo kunye nolwakhiwo kwisiza sobunjineli bentsimbi yobunjineli kubandakanya iikhonsepthi ezininzi zobuchwephesha bobuchwephesha, iiparitha zecandelo kunye nokuhlelwa kolwakhiwo. Ngexesha lomzobo wemihla ngemihla, ukujonga umthwalo kunye nothelekiso lwesikimu, uninzi lweengcali zihlala zinentandabuzo malunga nemigangatho eyahlukeneyo yobugcisa, iziphumo zoomatshini kunye neendlela zokukhetha zamalungu olwakhiwo.

Ngeengenelo ezibalaseleyo ezinje ngokuqina okuphezulu, ubunzima bomzimba obulula, inqanaba eliphezulu lemizi-mveliso kunye nexesha elifutshane lokwakha, izakhiwo zentsimbi ziye zaba yeyona ndlela yolwakhiwo lwezityalo zale mihla, izakhiwo zoluntu ezinkulu kunye nezakhiwo eziphakamileyo eziphakamileyo.

Ngophuhliso lobuchwephesha bezolimo kwinkulungwane yama-21, ukusetyenzwa kwemveliso yezolimo yanamhlanje kuye kwahamba ukusuka kulungiso lwakuqala ukuya kulungiso olunzulu, kwaye sele yenze imodeli enkulu kunye nenzulu. Ukwandiswa kobukhulu bemarike kunye nokuphuculwa kwezixhobo zenze ukuba iiplanti zokwenziwa kwezolimo zemveli zingakwazi ukuphucula ukusebenza kakuhle kwemveliso.

Kuyilo loyilo lwecawe lwangoku, olona yilo lubalulekileyo kukubonelela ibandla ngendawo yokunqula ebanzi nekhuselekileyo. Indlela yokwenza ukuba iliso lebandla lijonge ngokungathintelekiyo esibingelelweni ngelixa kugcinwa isimbo sokuhombisa inkolo lucelomngeni oluphambili ekufuneka abakhi bezakhiwo bajongane nalo.