Cov yam ntxwv ntawm kev sib txuas lus yees yog tias lawv feem ntau tsis siab heev, feem ntau qis dua 60m. Ntxiv nrog rau qhov yuav tsum tau hloov pauv siab ntawm microwave yees, qhov kev xav tau ntawm kev sib txuas lus ntauwd feem ntau nruab nrog cov kav hlau txais xov me me. Tus tsim tsom feem ntau ntawm lub zog, tab sis kuj txiav txim siab rigidity yuav tsum. Vim muaj coob tus pej thuam kev sib txuas lus, lawv yuav tsum tau ua kom yooj yim rau cov txheej txheem thiab nruab, yog li siv zog txuag nqi.

Feem ntau siv kev sib txuas lus yees hauv kuv lub teb chaws tuaj yeem muab faib ua cov ntaub ntawv hauv qab no: square kaum steel ntauwd, square steel tube ntauwd, daim duab peb sab steel tube ntauwd, ib lub raj ntauwd, thiab hom mast. Txhua tus muaj nws qhov zoo thiab qhov tsis zoo, nrog rau cov ntawv thov tsim nyog.

Square lub kaum sab xis steel ntauwd yog daim ntawv siv ntau tshaj plaws hauv peb lub tebchaws. Nws qhov zoo yog kev tsim kho yooj yim, kev ua haujlwm yooj yim, kev thauj mus los thiab kev teeb tsa. Cov qauv hlau yuav tsum tau vuam tsawg dua, ua kom zoo tswj tau yooj yim dua. Lawv muaj lub ntsej muag ruaj khov thiab ruaj khov. Tsis tas li ntawd, vim hais tias chav tsev nqi ntawm lub kaum sab xis steel yog tsawg, tus nqi tsim kho kuj tseem tsawg. Txawm li cas los xij, nws qhov tsis zoo suav nrog kev siv hlau ntau dua, cov nqi qis dua li lwm hom ntauwd, thiab qhov chaw loj hauv pem teb. Tsis tas li ntawd, cov duab coefficient ntawm lub kaum sab xis steel ntauwd yog qhov loj thiab qhov siab tshaj plaws ntawm cov khoom tseem txwv. Yog li ntawd, lawv tsis haum rau cov xwm txheej uas muaj cua kub siab thiab qhov siab siab. Nws raug pom zoo kom siv nws nyob rau hauv cov xwm txheej nrog nruab nrab mus rau qis cua siab thiab zoo geological tej yam kev mob.