【図面の簡単な説明】[Brief explanation of the drawing]
第１図ないし第４図はこの考案の一実施例を示
すものであつて、第１図は柱状体の防食構造の側
面図、第２図はその拡大横断平面図、第３図は構
造物を支持している柱状体に防食装置を取付けた
状態を示す一部縦断側面図、第４図は防食材に巻
付けた保護カバーが締付けられる前の状態を示す
横断平面図である。第５図ないし第７図はこの考
案の実施例において用いられる保護カバーを示す
ものであつて、第５図は正面図、第６図は横断平
面図、第７図は保護カバーの端部の拡大横断平面
図である。第８図はこの考案の実施例において用
いられる防食材の斜視図である。第９図ないし第
１１図は柱状体とカバー板体との間に介在される
防食材の他の例を示す断面図、第１２図ないし第
１６図はカバー板体の端部に対する連結部材の固
定手段の他の例を示す平面図、第１７図および第
１８図はカバー板体の端部に対し連結部材を固定
する順序の一例を示す平面図、第１９図および第
２０図はカバー板体の端部に対し連結部材を固定
する順序の他の例を示す平面図、第２１図はカバ
ー板体の端部に対する連結部材の固定手段の他の
例を示す正面図、第２２図はその横断平面図であ
る。第２３図ないし第３９図は保護カバーの両端
接合部の他の例を示すものであつて第２３図は第
１例の両端接合部の分解平面図、第２４図は第１
例の両端接合部の接合状態を示す横断平面図、第
２５図は第２例の両端接合部の分解平面図、第２
６図は第２例の両端接合部の接合状態を示す横断
平面図、第２７図は第３例の両端接合部の分解平
面図、第２８図および第２９図は第３例の両端接
合部の接合例を示す横断平面図、第３０図は第４
例の両端接合部の分解平面図、第３１図および第
３２図は第４例の両端接合部の接合例を示す横断
平面図、第３３図は第５例の両端接合部の分解平
面図、第３４図および第３５図は第５例の両端接
合部の接合例を示す横断平面図、第３６図は第６
例の両端接合部の分解平面図、第３７図および第
３８図は第６例の両端接合部の接合例を示す横断
平面図、第３９図は第７例の両端接合部の分解平
面図である。
図において、１は柱状体、２は防食材、３はカ
バー板体、４は連結部材、５は保護カバー、６は
締付具、８は緩衝材層、９は防食材層、１１はゴ
ム製止水パツキング、１２は吸水膨潤止水材層、
１３は添え板、１４は皿頭ボルト、１５はナツト
、１６はフランジである。
Figures 1 to 4 show one embodiment of this invention, in which Figure 1 is a side view of the columnar anti-corrosion structure, Figure 2 is its enlarged cross-sectional plan view, and Figure 3 is the structure. FIG. 4 is a partially vertical side view showing a state in which the corrosion protection device is attached to a columnar body supporting the corrosion protection device, and FIG. 4 is a cross sectional plan view showing the state before the protective cover wrapped around the corrosion protection device is tightened. 5 to 7 show the protective cover used in the embodiment of this invention, in which FIG. 5 is a front view, FIG. 6 is a cross-sectional plan view, and FIG. 7 is a view of the end of the protective cover. FIG. 3 is an enlarged cross-sectional plan view. FIG. 8 is a perspective view of the anticorrosive material used in the embodiment of this invention. 9 to 11 are cross-sectional views showing other examples of anticorrosion interposed between the columnar body and the cover plate, and FIGS. 12 to 16 are cross-sectional views of the connecting member to the end of the cover plate. A plan view showing another example of the fixing means, FIGS. 17 and 18 are plan views showing an example of the order in which the connecting member is fixed to the end of the cover plate, and FIGS. 19 and 20 are the plan views of the cover plate. FIG. 21 is a plan view showing another example of the order in which the connecting members are fixed to the end of the cover plate; FIG. 22 is a front view showing another example of the means for fixing the connecting member to the end of the cover plate; FIG. 23 to 39 show other examples of the joints at both ends of the protective cover. FIG. 23 is an exploded plan view of the joints at both ends of the first example, and FIG.
FIG. 25 is a cross-sectional plan view showing the joined state of both end joints in the example, and FIG. 25 is an exploded plan view of the both end joints in the second example.
Figure 6 is a cross-sectional plan view showing the joined state of both end joints of the second example, Figure 27 is an exploded plan view of the both end joints of the third example, and Figures 28 and 29 are the both end joints of the third example. 30 is a cross-sectional plan view showing an example of joining the 4th
FIG. 31 and FIG. 32 are cross-sectional plan views showing a joint example of the both-end joints of the fourth example; FIG. 33 is an exploded plan view of the both-end joints of the fifth example; 34 and 35 are cross-sectional plan views showing a joint example of both end joints of the fifth example, and FIG.
FIG. 37 and FIG. 38 are cross-sectional plan views showing the joint example of the both-end joints of the sixth example, and FIG. 39 is an exploded plan view of the both-end joints of the seventh example. be. In the figure, 1 is a columnar body, 2 is a corrosion-proofing layer, 3 is a cover plate, 4 is a connecting member, 5 is a protective cover, 6 is a fastener, 8 is a buffer layer, 9 is a corrosion-proofing layer, 11 is rubber made of water-stop packing, 12 is a water-absorbing and swelling water-stop material layer,
13 is a splint, 14 is a countersunk bolt, 15 is a nut, and 16 is a flange.