| 摘要 |
<p>A skeleton structural member (12, 38, 50), comprising a hollow skeleton member (11) filled with a plurality of powder and granular materials (18). Partition wall formation materials (21, 23, 26, 35, 42) positioned apart from each other are disposed in the skeleton member, and closed spaces (16, 37) are formed by the partition wall formation materials and the skeleton member. The plurality of powder and granular materials are filled in the closed spaces. When the partition wall formation materials are heated and inflated, the partition wall member (15, 36) is formed, and an internal pressure in the closed spaces is increased.</p> |
