Locks ntawm kub dov z hom steel ntawv pawg yog symmetrically faib rau ntawm ob sab ntawm lub nruab nrab axis, thiab lub web yog nruam, uas zoo heev txhim kho cov seem modulus thiab dabtsi yog khoov nruj, thiab xyuas kom meej tias cov neeg kho tshuab yam ntxwv ntawm seem yuav ua tau tag nrho exerted.

1) Kev sib cuam tshuam ntau dua: Qhov no tso cai rau cov nplooj ntawv yuav tsum tau tsav thiab rub ntau zaus ua ntej cov kev cuam tshuam raug hnav.

2) Zoo dua-tsim rau kev tsav tsheb nyuaj: Cov kev cuam tshuam ntawm cov ntaub ntawv kub dov kuj yog tuab thiab nruj dua li ntawm cov ntawv txias-dov.Qhov no muab cov ntawv pawg ntau zog kom tau tsav mus rau hauv av tawv

3) Cov ntsiab lus zoo dua qub: LEED cov cai qee zaum hais txog kev siv cov khoom siv rov ua dua tshiab.Cov ntaub ntawv kub-kuav los tiag muaj yuav luag 100% cov ntsiab lus siv cov hlau, thaum cov ntawv txias-tsim pawg feem ntau muaj li ntawm 80% cov khoom siv rov ua dua tshiab.

4) Ntau cov dej-nruj: Cov ntawv kub dov ua tau zoo dua hauv cov kev ntsuam xyuas seepage, vim feem ntau rau cov kev sib tw nruj dua