JPH0523664Y2 - - Google Patents
Info
- Publication number
- JPH0523664Y2 JPH0523664Y2 JP12042089U JP12042089U JPH0523664Y2 JP H0523664 Y2 JPH0523664 Y2 JP H0523664Y2 JP 12042089 U JP12042089 U JP 12042089U JP 12042089 U JP12042089 U JP 12042089U JP H0523664 Y2 JPH0523664 Y2 JP H0523664Y2
- Authority
- JP
- Japan
- Prior art keywords
- steps
- center
- horizontal
- precast concrete
- tapered
- Prior art date
- 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
- 239000011178 precast concrete Substances 0.000 claims description 17
- 239000004567 concrete Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Sewage (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12042089U JPH0523664Y2 (fr) | 1989-10-14 | 1989-10-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12042089U JPH0523664Y2 (fr) | 1989-10-14 | 1989-10-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0362176U JPH0362176U (fr) | 1991-06-18 |
| JPH0523664Y2 true JPH0523664Y2 (fr) | 1993-06-16 |
Family
ID=31668497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12042089U Expired - Lifetime JPH0523664Y2 (fr) | 1989-10-14 | 1989-10-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523664Y2 (fr) |
-
1989
- 1989-10-14 JP JP12042089U patent/JPH0523664Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0362176U (fr) | 1991-06-18 |
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