A.50mmB.100mmC.150mmD.200mm
A.密封層、密封襯墊層、空腔B.密封層、防水層、空腔C.密封層、密封襯墊層、空腔、防水層D.密封襯墊層、防水層、空腔
A.傳遞水平力B.承受豎向荷載C.抵抗水平力D.抗推構(gòu)件的協(xié)同