JPH0512408Y2 - - Google Patents

Info

Publication number

JPH0512408Y2

JPH0512408Y2 JP8294587U JP8294587U JPH0512408Y2 JP H0512408 Y2 JPH0512408 Y2 JP H0512408Y2 JP 8294587 U JP8294587 U JP 8294587U JP 8294587 U JP8294587 U JP 8294587U JP H0512408 Y2 JPH0512408 Y2 JP H0512408Y2

Authority

JP

Japan

Prior art keywords

reinforcing material

wood

center

downward protrusion

composite

Prior art date

1987-05-29

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired - Lifetime

Links

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• 239000002131 composite material Substances 0.000 claims description 28
• 239000002023 wood Substances 0.000 claims description 21
• 239000012779 reinforcing material Substances 0.000 claims description 18
• 238000010586 diagram Methods 0.000 description 4
• 230000003014 reinforcing effect Effects 0.000 description 4
• 239000002184 metal Substances 0.000 description 3
• 229920000049 Carbon (fiber) Polymers 0.000 description 2
• 239000004917 carbon fiber Substances 0.000 description 2
• 239000000919 ceramic Substances 0.000 description 2
• 238000010276 construction Methods 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
• 239000004033 plastic Substances 0.000 description 2
• 239000011150 reinforced concrete Substances 0.000 description 2
• 230000002787 reinforcement Effects 0.000 description 2
• 230000007423 decrease Effects 0.000 description 1
• 238000005516 engineering process Methods 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 230000004048 modification Effects 0.000 description 1
• 238000012986 modification Methods 0.000 description 1
• 239000003566 sealing material Substances 0.000 description 1
• 239000003351 stiffener Substances 0.000 description 1