| 摘要 |
PROBLEM TO BE SOLVED: To enhance strength against a vertical load by rationally strengthening rigidity of two beams. SOLUTION: In a composite beam of a building, wherein the two beams 22 and 33 are stacked together in upper and lower positions, both ends of the two beams 22 and 33 are joined (R1 and R2) to each other almost without displacement. COPYRIGHT: (C)2005,JPO&NCIPI
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