MN73屋(wu)(wu)面系統(tong)可通(tong)過屋(wu)(wu)面板的自由(you)滑動釋放熱(re)脹冷(leng)縮(suo)產生的形變(bian)。系統(tong)設(she)計(ji)時(shi)一般將屋(wu)(wu)面板在屋(wu)(wu)檐處(chu)固定(ding)，屋(wu)(wu)脊處(chu)自由(you)伸縮(suo)，使該形變(bian)既不(bu)影響(xiang)建(jian)筑(zhu)功(gong)能，又不(bu)破壞建(jian)筑(zhu)外觀。
美耐(nai)建筑自主研發的滑動(dong)(dong)(dong)支架是連(lian)(lian)(lian)接(jie)屋(wu)(wu)(wu)面(mian)(mian)(mian)板(ban)(ban)和結構件、且實現屋(wu)(wu)(wu)面(mian)(mian)(mian)板(ban)(ban)自由滑動(dong)(dong)(dong)的關鍵。一方(fang)面(mian)(mian)(mian)，可(ke)滑動(dong)(dong)(dong)式連(lian)(lian)(lian)接(jie)件可(ke)同(tong)時(shi)承(cheng)載屋(wu)(wu)(wu)面(mian)(mian)(mian)上的雪壓(ya)和人(ren)行壓(ya)力，也可(ke)以(yi)拉緊(jin)屋(wu)(wu)(wu)面(mian)(mian)(mian)，避免被風(feng)掀起。另一方(fang)面(mian)(mian)(mian)，連(lian)(lian)(lian)接(jie)件的可(ke)滑動(dong)(dong)(dong)性能可(ke)以(yi)使屋(wu)(wu)(wu)面(mian)(mian)(mian)板(ban)(ban)自由滑動(dong)(dong)(dong)，從而釋放熱應力，避免連(lian)(lian)(lian)接(jie)破壞。同(tong)時(shi)，檁條預沖孔技(ji)術(shu)也確(que)保了數量眾多的連(lian)(lian)(lian)接(jie)件在一條直(zhi)線上順暢滑動(dong)(dong)(dong)。
此外(wai)，在高(gao)低跨(kua)處、屋面(mian)開口(kou)等(deng)節點處，屋面(mian)的熱(re)脹冷縮也得到了妥善處理。
