45 908 6 A7 B7 五、發明說明（1 ) 〔發明之所屬技術領域〕 本發明係有關設置在橋樑等之落橋防止裝置，更詳細 的說，是關於可應對於通常之地震時產生之位移的多功能 位移限.制裝置倂用型落橋防止裝置。 〔習知技術 以往， II防止在大地震時來自橋或者橋樑之橋身的Pi丨 ，將第圖所不之落橋防止裝置A '設置在例如第 圖〜第 f?(fi 圖所示之混凝土橋2 0 ;鋼骨橋21 ;橋 和橋襟2之間。 前述橋防止裝置A，係被設置在橋身間或者是橋身和 橋架之間，用由P C鋼棒或P C鋼將線以P E包覆之結合 纜線4來防止橋身的掉落。 m .ΙϊϊΓϊ1.. _ .,：-s 經濟部智慧財產局員工消費合作社印製 〔發明欲解決之課題〕 然而，因習知之落 測之大地震發生時前述 震時所產生之橋身的位 。對於此事，後來在道 裝置也要設有前述之位 法，由於係將上部結構 器等來限制相對位移· 於結構上和管理維護上 加(上，習知之落橋防止 橋防止裝置 之掉落，而 移限制或地 路橋規範中 移防止用之 和下部結構 而另設有落 是困難的， 裝置，亦有 之目的是爲 對在通常之 震能量的吸 被要求即使 裝置，此時 藉由錨固棒 橋防止裝置 成本會變得 使爲緩和衝 防止不可預 中小規模地 收並無作用 是落橋防止 ，習卸之作 或角鋼止動 ，故承載部 相當高。再 擊之地震力 Γ--^---- -----裝----- -- 訂---------線 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -4 - ^〇9〇8 6 A7 B7 五、發明說明（2 ) 的緩衝材大型化的缺點。有關本發明之位移限制裝置倂用 '型落橋防止裝置，係爲解決這樣的課題而提案的。 (請先閱讀背面之注意事項再填寫本頁) 〔解決課題之手段〕 有關本發明之位移限制裝置倂用型落橋防止裝置爲解 決上述之課題之主旨，係其爲在架設有所定長度結合結構 件之該結合結構件的兩端部設置有止動器防止橋身從橋架 或橋墩落下的落橋防止裝置，並將限制橋身之水平方向位 移的位移限制裝置夾設在前述止動器之間。 前述位移限制裝置，係包括以下者： (1 )其由下列所組成：活嵌在結合構件之金屬筒體 ;於該筒體制動部嵌插設在結合構件之橋身位移時將筒體 之徑擴大之楔形板；被夾在該楔形扳和制勖部之間的挾持 板；被夾在前述楔形板和前記載挾持板之間，於通常時保 持兩板間之間隔的彈性體。 (2 )其爲將楔形板從前述筒體之制動_押入至楔形 板所要位置，使該當筒體之局部呈被擴徑之事先預載狀態 安裝在橋身者。 經濟部智慧財產局員工消費合作社印製 (3 )前述楔形板，係將使筒體擴徑之斜角部設在其 外周面，該斜角部之角度設定成2 °〜2 0 ° 。 (4 )前述彈性體和挾持板之安裝是用螺栓裝配在已 預載之筒體的楔形板上，在該筒體安裝於橋身後就撤除前 記載螺栓。 ‘ 根據本發明相關之位移限制裝置倂用型落橋防止裝置 -5- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 45908 6 A7 ____B7__ 五、發明說明（3 ) (請先間讀背面之注意事項再填寫本頁) 時，其對於由溫度變化造成之橋樑伸縮作用，會以於楔形 板和挾持板之間的彈性體伸縮做爲應對，在中小地震時， 隨著橋身之對水平方向的移動，楔形板之筒體內部移動使 筒體擴徑得以吸收地震能量。因此，根據地震能量之大小 在適宜位置停止橋身之水平方向的移動。 又，在藉由前述筒體之擴徑也無法吸收大的地震能量 時，前述筒體會被破壞，而藉由結合構件之端部的止動器 來停止橋身之位移。如此，使其成爲回應道路橋規範所要 求之位移限制裝置倂用型落橋防止裝置。 此外，前述金屬製筒體，係因楔形板是從其之一端開 口被押入，事先預載的，故如第8圖所示，載重和位移的 關係是圖中實線所表示之曲線，塑性變形部份因是小位移 故呈略平坦，可吸收大的地震能量。假設，若不將筒體事 先進行預載時，則載重和位移的關係是圖中虛線所表示之 曲線，在小的載重時就會有大的變形，是無法將地震能量 充分吸收的。 加上，因於楔形板使筒體擴徑之斜角部之角度，設定 成2°〜20° ，故可使筒體毫無勉強地被擴徑且塑性變 經濟部智慧財產局員工消費合作社印製 形。 因於位移限制裝置倂用型落橋防止裝置中之彈性體和 挾持板，係爲用螺栓裝配在被預載筒體中之楔形板，在該 筒體安裝於橋身後就撤除前述螺栓的安裝方式，故於橋身 之現場作業中，只有將前述螺栓之撤除作業，可降低作業 工種，又，於零件搬運上因也只是一種輔助零件，故容易 -6- 本紙張尺度適用t國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 4 5 9 08 6 A7 ____ B7 五、發明說明（4 ) 處理。 〔發明之實施形態〕 接著’參考圖面對本發明之相關位移限制裝置倂用型 落橋防止裝置進行說明。另，爲容易理解發明將應對於習 知例之部份以和習知例同樣之符號來進行說明。 有關本發明第1實施例之位移限制裝置倂用型落橋防 止裝置1 ，如第1圖所示，在橋架2之欄牆2 a和橋身3 之橫樑3 a之間，做爲結合構件之結合纜線4，用所定長 度以活嵌狀態架設在橋身兩側面之2處上。結合纜線4係 由PC鋼構成線，在其表面包覆PE (聚乙烯），在兩端 刻設有螺絲帽錨固用的螺絲溝槽。 於結合纜線4，如第2圖所示，纜線之雨端壓接有金 屬製之纜線殼4 a ，在該纜線殼4 a之外周部刻設有螺絲 溝槽4 b，於該處螺有做爲止動器之螺絲帽5、6。 在前述做爲止動器之螺絲帽5、6之間，設置有本發 明之主要部份的位移限制裝置7。於第1圖所示之實施例 中，雖是表示在兩側設有位移限制裝置7、7之例子，但 不限於此，也可將其僅設置在結合纜線4之一端側。但是 此時，須將於位移限制裝置7中之設定位移量設定成2倍 0 位移限制裝置7，係如第2圖所示，其具有活嵌在結 合纜線4之金屬筒體（例如，圓筒狀鋼管）8 ;於該筒體 8之止動器側之嵌插設在結合纜線4之橋身3位移時使筒 本紙張尺度適用令國國家標準（CNS)A4規格（210 X 297公釐） — Ί----------— l··裝 ill· —--訂-------围線 (請先Μ讀背面之注意事項再填寫本頁) Α7 μ ο 9 Ο 8 6 _____Β7 五、發明說明（5 ) 體8之徑擴大之楔形板9。 (請先閱讀背面之注意事項再填寫本頁> 前述筒體8之直徑、長度、厚度等的決定’係根據塑 性變形所欲吸收之地震能量的設定做適宜之決定。例如， 直徑爲1 0 0〜3 0 Omm左右1長度其中一例爲7 0 0 〜1000mm左右。在該筒體8之橫樑側’如第3圖所 示，有安裝固定甩之錨固板8 a以焊接等手段錨固著》在 該錨固板8 a中央部設有纜線用貫穿孔8 b ，在周圍4處 設有螺栓穿插用之安裝孔8 d »在穿插於前述貫穿孔8 b 之結合纜線上，事先嵌裝有防止P E包覆刮傷之導管。此 外，在筒體8之外周面上，因應該筒體大小、重量亦設有 搬運用之吊具8 c。 前述楔形板9 ，係爲其所要寬幅是吻合活嵌在結合纜 線4之纜線殼4 a的環狀金屬板。於第2圖中，在其外周 設有從螺絲帽5側朝橫樑3 a側前端變細之斜角部9 a。 該斜角部9 a之傾斜程序度在2 °〜2 0 °之範圍.。 經濟部智慧財產局負工消費合作社印製 在前述斜角部9 a之後端面，設有彈性體用之凹部 9 b ’於此嵌裝有做爲彈性體之彈簧1 〇。接著，在楔形 板9之對面中央，設置著有纜線用貫穿孔1 1 a之環狀挾 持板1 1 ’在前述彈簧1 〇用之凹部9 b嵌裝著前述彈簧 1 0之一端。 然後，於前述狀挾持板1 1之後方，螺絲帽5從後方 側螺入纜線殼4 a之螺絲溝槽4 b中，使前端面緊接螺固 於前述挾持板1 1。 另，第2圖所示之位移限制裝置7，係爲裝配狀態之 -8- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公楚） 斗芑S 08 S A7 _____B7____ 五、發明說明（6 ) 裝置，其裝配狀態爲將楔形板9從螺絲帽側開口押入於筒 體8使其預載’接著在筒體8內，如第4圖所示，安裝前 述彈簧1 0和前述狀挾持板1 1，用有六角孔之螺栓1 2 將楔形板9和挾持板1 1進行假固定，維持成間隔s 2 (參 考第2圖）。因此’將裝配完成之位移限制裝置7安裝在 結合纜線4後，於前述螺絲帽5螺固在螺絲溝槽4 b後， 將前述螺栓12藉由工作人員進行撤除。 在前述筒體8之後端，被嵌有合成樹脂製之保護蓋 1 3。根據如此所組成之位移限制裝置倂用型落橋防止裝 置1，在因溫度變化造成之伸縮時，或在中小規模之地震 時，亦或在大地震時所伴隨橋身3之移動，對前述位移限 制裝置7之作用說明如下。 首先，如第5圖所示，在因溫度變化造成之伸縮時或 是在中小規模之地震時，做爲前述彈性體之彈簧1 0，會 因應橋身3之移動量以伸縮做應對。另，在中規模之地震 ，筒體8以在某範圍內進行塑性變形時，當該地震結束後 ，是要將原有之位移限制裝置7更換成新的位移限制裝置 7。 接著，在大地震時，如第6圖所示，橋身3在後方會 有大的位移，承載部B會被破壞，如第7圖所示，楔形板 9會順著斜角部對筒體8 —邊進行擴徑一邊往箭頭方向移 動。藉由事先預載之筒體8 >依照如第8圖所示實線之載 重與位移之關係曲線來吸收地震能量。 根據前述筒體8之被擴徑作用，筒體8大致會一樣塑 • l· II .----------裝· 1 — <請先閱讀背面之注意事項再填寫本頁) l»J· 絲· 經濟部智慧財產局員工消費合作杜印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -9 - 4 5 9 08 6 A7 _____B7 _ 五、發明說明（7 ) 性變形，因應橋身3之位移量來吸收地震能量。然後，停 止因地震能量對該橋身3後方所成成之位移。 (請先閱讀背面之注意寧項再填寫本頁> 加上’當橋身3後方位移時，如第9圖所示，前述位 移限制裝置7會被破壞’然後藉由止動器之螺絲帽5來限 制對後方之移動’以防止橋身3從橋架2掉落。於該實施 例中’是使位移限制裝置倂用型落橋防止裝置1之作用爲 橋架座長SE(參考第1圖）之1/4左右β 將本發明之位移限制裝置倂用型落橋防止裝置的作用 ，以地震力設計値之（t f )和橋身3之相對位移量（ cm)之關係來表示時，就如第1 〇圖所示。圖中， 是使用於震度法之水平震度設計値，Rd是有效載重反力 (_t f+) SE是橋架座長（cm) ，SF是落橋防止結構 之最大移動量設計値（cm)。 如上述，本發明之位移限制裝置倂用型落橋防止裝置 11在通常之溫度變化或者地震時具有做爲位移限制裝置 之功能，在不能預期之大地震時具有做爲落橋防止裝置之 功能，是兼具二種功能之裝置。 經濟部智慧財產局員工消費合作社印製 、 〔發明效果〕 如以上說明，本發明相關之位移限制裝置倂用型落橋 防止裝置，係爲將所定長度之結合構件架設後在該結合構 件之兩端部設置止動器’以防止橋身從橋架掉落之落橋防 止裝置，由於限制橋身水平方向位移之位移限制裝置夾在 前述止動器之間，大地震時在防止橋身從橋架掉落之同時 -10- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 45 908 6 A7 ___B7________ 五、發明說明（8 ) ，藉由位移限制裝置來限叙地震時對橋軸方向之移動，使 其成爲兼具二種功能之位移限制裝置倂用型落橋防止裝置 ，並使其成爲產生簡易構造又容易施工且降低成本之優良 效果者。此外，其爲因應道路橋規範之要求的位移限制裝 置倂用型落橋防止裝置。 由於位移限制裝置係由下列所組成：活嵌在結合構件 之金屬筒體；於該筒體制動部嵌插設在結合構件之橋身位 移時將筒體之徑擴大之楔形板；被夾在該楔形板和制動部 之間的挾持板；被夾在前述楔形板和前記載挾持板之間， 於通常時保持兩板間之間隔的彈性體，故使其成爲產生組 成簡易且施工簡單之優良效果者。 於前述位移限制裝置中，由於其爲將楔形板從前述筒 體之開口往內部押入至楔形板所要位置，使該當筒體之局 部呈被擴徑之事先預載狀態安裝在橋身者，故使其在小位 移時之降伏點高，之後大致平坦地進行塑性變形，成爲具 有可充分吸收地震能量之優良效果者。 由於前述楔形板，係將使筒體擴徑之斜角部設在其外 周面’該斜角部之角度設定成2°〜20。，故可使筒體 毫無勉強地被擴徑且塑性變形。 由於前述彈性體和挾持板之安裝是用螺栓裝配在已預 載之筒體的楔形板上，在該筒體安裝於橋身後就撤除前記 載螺栓，故使其成爲搬運時輕巧且便宜，又安裝於結合構 件之施工變得容易之優良效果者。 本紙張尺度適用宁國國家標準（CNS)A4規格（210 X 297公釐） 丨丨丨！*裝！ 訂*1!丨丨！ 線 {請先閱讀背面之注意事項再填寫本頁) A7 459086 -___B7___ 五、發明說明（9 ) [圖式之簡單說明〕 第1圖爲表示本發明相關之位移限制裝置倂用型落橋 防止裝置1之構造使用狀態槪略側視圖。 第2圖爲表示於同本發明相關之位移限制裝置倂用型 落橋防止裝置1中之位移限制裝置7細部構造剖視圖。 第3圖爲表示於同本發明相關之位移限制裝置倂用型 落橋防止裝置1之位移限制裝置7中，筒體8之錨固板 8 a前視圖。 第4圖爲於同本發明相關之位移限制裝置倂用型落橋 防止裝置1之位移限制裝置7中，楔形板9和挾持板1 1 用螺栓12假固定之說明圖。 第5圖爲說明同本發明之位移限制裝置倂用型落橋防 止裝置1在溫度變化或者中小規模地震時作用狀態說明圖 〇 第6圖爲說明同本發明之位移限制裝置倂用型落橋防 止裝置1在大地震時作用狀態說明圖。 第7圖爲表不於同位移限制裝置7中，筒體8塑性變 形之狀態圖。 第8圖爲表示於同位移限制裝置7中，載重和位移之 關係圖。 第9圖爲說明同本發明之位移限制裝置倂用型落橋防 止裝置1在大地震時作用狀態說明圖。 第10圖爲表不同本發明之位移限制裝置倂用型落橋 防止裝置1之設I十力與位移量之關係圖。 本紙張尺ίΐϊ用中國國家標準（CNS)A4規^ (21G 297公楚) -12 ^ _ ' --- ---Γ---------裝 -------訂·------線 ί請先閱讀背面之注意事頊再填寫本冥) 經濟部智慧財產局員工消費合作社印製 45 908 6 A7 B7 五、發明說明（ίο) 第11圖爲表示同本發明之位移限制裝置倂用型落橋 防止裝置1之位移限制裝置7中，顯示各筒體各例之半剖 面之前視圖。 第12圖爲表示相同各筒體進行實驗之加載重一位移 曲線的關係圖。 第1 3圖爲習知例相關之落橋防止裝置A的構造之前 視圖。 第1 4圖爲相同習知例相關之落橋防止裝置a的使用 狀態說明圖。 第1 5圖爲相同習知例相關之落橋防止裝置a的使用 狀態說明圖》 第1 6圖爲相同習知例相關之落橋防止裝置a的使用 狀態說明圖= 〔符號說明〕 ί — 1 ^--------l· -裝--- (靖先閲讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消費合作社印製 V 1 位移限制裝置倂用型落橋防止裝S u 2 橋架 · v 2 a 欄牆 3 橋身 4 結合續線 4 a 纜線殼 4 b 螺絲溝槽 4 c 導管 5 、6 螺絲帽 f 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -13- 459086 A7 B7 五、發明說明（11〉 7 8 9 a b 0 1 b 2 3 位移限制裝置 筒體 楔形板 斜角部 凹部 彈簧 挾持板 貫穿孔 凹部 螺栓 保護蓋 - ----1----------裝--- (請先閱讀背面之注意事項再填寫本頁) 訂· •線· 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -14 -45 908 6 A7 B7 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a fall-prevention device installed on a bridge or the like. More specifically, it relates to a device capable of responding to displacements caused by ordinary earthquakes. Multi-function displacement limit. Control device. [Previously known techniques, II prevent Pi from the bridge or the bridge body during a large earthquake, and install the fall prevention device A 'shown in the figure in, for example, the concrete shown in figures f to f? (Fi Bridge 20; steel-framed bridge 21; between bridge and placket 2. The aforementioned bridge prevention device A is installed between the bridge body or between the bridge body and the bridge frame, and the wire is connected by a PC steel rod or PC steel. PE-coated combined cable 4 to prevent the bridge from falling. M .ΙϊϊΓϊ1 .. _.,:-S Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs [Problems to be Solved by the Invention] The position of the bridge body generated by the aforementioned earthquake at the time of the Great Earthquake. For this matter, the above-mentioned position method was also required to be installed on the road device. The relative displacement was limited by the structure and management of the superstructure. It is difficult to maintain the addition of the above-mentioned falling bridge to prevent the device from falling, and it is difficult to install another structure with the lower structure and the movement restriction or ground bridge specification. The absorption of energy in normal shock is required even if the device At this time, the cost of the anchoring rod bridge prevention device will become so as to mitigate the impact of unpredictable small and medium-scale collection. It has no effect on falling bridge prevention, unloading work or angle steel stop, so the bearing part is quite high. Re-hit earthquake Force Γ-^ ---- ----- installation ------order --------- line (Please read the precautions on the back before filling this page) This paper size applies China National Standard (CNS) A4 specification (210 X 297 mm) -4-^ 〇09〇6 6 A7 B7 V. Disadvantages of the large size of the buffer material of the invention description (2). The displacement limiting device of the present invention is used 'Type fall bridge prevention device is proposed to solve such a problem. (Please read the precautions on the back before filling out this page.) [Solutions to solve the problem] The displacement limiter of the present invention is a type of fall bridge prevention device. The gist of the above-mentioned subject is that a stopper preventing device for preventing the bridge body from falling from the bridge or a pier is provided at both ends of the coupling structure member with a predetermined length of the coupling structure member. The displacement limiting device for horizontal displacement is sandwiched between the aforementioned stops The aforementioned displacement limiting device includes the following: (1) It consists of the following: a metal cylinder that is embedded in the coupling member; the braking portion of the cylinder is inserted when the bridge of the coupling member is displaced. A wedge-shaped plate with an enlarged diameter of the cylinder; a holding plate sandwiched between the wedge-shaped plate and the crotch; a sandwich plate sandwiched between the aforementioned wedge-shaped plate and the previously described holding plate to maintain the space between the two plates at normal times (2) It is the person who pushes the wedge-shaped plate from the aforementioned cylinder's brake to the desired position of the wedge-shaped plate, so that the part of the cylinder is installed on the bridge body in a pre-loaded state with an enlarged diameter. Intellectual property of the Ministry of Economic Affairs (3) The aforementioned wedge-shaped plate is printed by the bureau's consumer cooperative, and the oblique portion that expands the diameter of the cylinder is set on the outer peripheral surface, and the angle of the oblique portion is set to 2 ° ~ 20 °. (4) The installation of the aforementioned elastic body and holding plate is bolted to a wedge-shaped plate of a preloaded cylinder. After the cylinder is installed on the bridge body, the bolts mentioned before are removed. '' According to the present invention, the related displacement limiting device is used as a type of falling bridge prevention device-5- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 45908 6 A7 ____B7__ V. Description of the invention (3) (Please When you first read the notes on the back and then fill out this page), its response to the expansion and contraction of the bridge caused by temperature changes will respond to the expansion and contraction of the elastomer between the wedge plate and the holding plate. The horizontal movement of the bridge body and the internal movement of the cylinder of the wedge plate allow the diameter of the cylinder to expand to absorb seismic energy. Therefore, the horizontal movement of the bridge body is stopped at an appropriate position according to the magnitude of the seismic energy. In addition, when large seismic energy cannot be absorbed by the diameter expansion of the cylinder, the cylinder is broken, and the displacement of the bridge body is stopped by the stopper at the end of the coupling member. In this way, it is a general-purpose fall-prevention device for displacement limiting devices in response to the requirements of road bridge specifications. In addition, the aforementioned metal cylinder is pre-loaded because the wedge-shaped plate is pushed in from one end of the opening, so as shown in Figure 8, the relationship between load and displacement is the curve indicated by the solid line in the figure. The deformed part is slightly flat due to the small displacement, which can absorb large seismic energy. It is assumed that if the cylinder is not preloaded in advance, the relationship between the load and displacement is the curve indicated by the dashed line in the figure. At a small load, there will be a large deformation and the seismic energy cannot be fully absorbed. In addition, since the angle of the oblique portion of the cylinder expanding diameter is set to 2 ° ~ 20 ° by the wedge-shaped plate, the cylinder can be expanded without any reluctance and plastically transformed into an employee consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Printing shape. Due to the displacement limiting device, the elastic body and the holding plate in the universal fall prevention device are wedge-shaped plates that are bolted to the preloaded cylinder. After the cylinder is installed on the bridge body, the installation method of the bolt is removed Therefore, in the field operation of the bridge body, only the removal of the aforementioned bolts can reduce the type of work, and because the parts are also only an auxiliary part, it is easy to apply this national standard ( CNS) A4 specification (210 X 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 4 5 9 08 6 A7 ____ B7 V. Description of the invention (4) Disposal. [Embodiment of the invention] Next, a description will be given of a fall-prevention device for a displacement limiting device according to the present invention with reference to the drawings. For easy understanding of the invention, the parts of the conventional examples will be explained with the same symbols as the conventional examples. Regarding the displacement limiting device according to the first embodiment of the present invention, the type of falling bridge prevention device 1 is used as a coupling member between the fence wall 2 a of the bridge 2 and the cross beam 3 a of the bridge body 3 as shown in FIG. 1. Combined with the cable 4, it is erected in two places on both sides of the bridge body in a lively state with a predetermined length. The bonding cable 4 is made of PC steel, and its surface is covered with PE (polyethylene), and screw grooves for screw cap anchoring are engraved at both ends. As shown in FIG. 2, the cable end is crimped with a metal cable housing 4 a as shown in FIG. 2. A screw groove 4 b is engraved on the outer periphery of the cable housing 4 a. There are screw caps 5 and 6 for stoppers. Between the aforementioned screw caps 5 and 6 of the stopper, a displacement limiting device 7 as a main part of the present invention is provided. Although the embodiment shown in FIG. 1 shows an example in which the displacement limiting devices 7, 7 are provided on both sides, it is not limited to this, and it may be provided only on one end side of the bonding cable 4. However, at this time, the set displacement amount in the displacement limiting device 7 must be set to 2 times. The displacement limiting device 7 is shown in FIG. 2 and has a metal cylinder (such as, Cylindrical steel pipe) 8; The insert on the stopper side of the cylinder 8 is used to make the paper size of the cylinder applicable to the national standard (CNS) A4 specification (210 X when the displacement of the bridge body 3 of the cable 4) 297 mm) — Ί ----------— l · · install ill · —- order ------- fence (please read the precautions on the back before filling in this page) Α7 μ ο 9 Ο 8 6 _____ Β7 V. Description of the invention (5) Wedge plate 9 with enlarged diameter of body 8. (Please read the precautions on the back before filling in this page> The above-mentioned decision of the diameter, length, thickness, etc. of the cylinder 8 is a proper decision based on the setting of the seismic energy to be absorbed by the plastic deformation. For example, the diameter is 1 An example of a length of about 0 0 to 3 0 Omm is about 7 0 to 1000 mm. On the side of the beam of the cylinder 8 ′, as shown in FIG. 3, there is an anchor plate 8 a which is fixed and thrown, and is anchored by means such as welding. 》 A cable insertion hole 8 b is provided in the central portion of the anchor plate 8 a, and mounting holes 8 d for bolt insertion are provided at the surrounding 4 d »The connection cable inserted in the through hole 8 b is inserted in advance There are ducts to prevent scratches from being covered by PE. In addition, a lifting sling 8c is also provided on the outer peripheral surface of the cylinder 8 in accordance with the size and weight of the cylinder. The aforementioned wedge plate 9 is for its wide width. It is a ring-shaped metal plate that fits into the cable case 4a of the joint cable 4. In the second figure, an oblique portion 9 is formed on the outer periphery of the ring-shaped thinner portion from the screw cap 5 side to the front end of the beam 3a side. a. The inclination angle of the bevel portion 9 a is in the range of 2 ° ~ 20 °. Fei Co., Ltd. printed the end face of the beveled portion 9 a, and provided with a recessed portion 9 b ′ for the elastic body. Here, a spring 10 as an elastic body is embedded. Next, in the center of the opposite side of the wedge plate 9, A ring-shaped holding plate 1 1 ′ having a through-hole 11 a for a cable is fitted with one end of the spring 10 in the recessed portion 9 b for the spring 10. Then, behind the shape of the holding plate 11, a screw The cap 5 is screwed into the screw groove 4 b of the cable housing 4 a from the rear side, and the front end surface is screwed tightly to the aforementioned holding plate 1 1. The displacement limiting device 7 shown in FIG. 2 is assembled Condition -8- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297). Douglas S 08 S A7 _____B7____ 5. Description of the invention (6) The device is assembled with the wedge plate 9 from the screw The cap-side opening is pushed into the cylinder 8 to be preloaded. Then, as shown in FIG. 4, the spring 10 and the holding plate 1 1 are installed, and the wedge is bolted with a hexagonal hole 1 2 The plate 9 and the holding plate 11 are pseudo-fixed and maintained at the interval s 2 (refer to FIG. 2). Therefore, 'the assembly is completed The movement limiting device 7 is installed after the bonding cable 4 is screwed to the screw groove 4 b, and the bolt 12 is removed by a worker. The rear end of the cylinder 8 is embedded with a composite Resin protective cover 1 3. According to the displacement limiting device thus constituted, the type of falling bridge prevention device 1 is used when the expansion and contraction caused by temperature changes, or during a small or medium-scale earthquake, or during a large earthquake The movement of the body 3 explains the effect of the aforementioned displacement limiting device 7 as follows. First, as shown in FIG. 5, when the expansion or contraction is caused by a change in temperature or during a small or medium-scale earthquake, the spring 1 is used as the elastic body. 0, will respond to the movement of the bridge body 3 by telescopic. In addition, in a medium-scale earthquake, when the cylinder 8 is plastically deformed within a certain range, when the earthquake is over, the original displacement limiting device 7 is replaced with a new displacement limiting device 7. Then, during a large earthquake, as shown in FIG. 6, the bridge body 3 will be greatly displaced in the rear, and the bearing portion B will be destroyed. As shown in FIG. 7, the wedge plate 9 will face the cylinder along the oblique angle. Body 8-Move in the direction of the arrow while expanding the diameter. Seismic energy is absorbed by the cylinder 8 pre-loaded in advance according to the relationship between the load and displacement of the solid line as shown in FIG. 8. According to the expansion effect of the cylinder 8 mentioned above, the cylinder 8 will be roughly plastic • l · II .------------ install · 1 — < Please read the precautions on the back before filling this page ) l »J · Si · The Intellectual Property Bureau of the Ministry of Economic Affairs's consumer cooperation Du printed paper sizes are applicable to China National Standard (CNS) A4 (210 X 297 mm) -9-4 5 9 08 6 A7 _____B7 _ V 、 Description of the invention (7) In the case of deformation, the seismic energy is absorbed in accordance with the displacement of the bridge body 3. Then, the displacement caused by the seismic energy to the rear of the bridge body 3 is stopped. (Please read the note on the back first and then fill in this page> plus 'When the rear of the bridge body 3 is displaced, as shown in Figure 9, the aforementioned displacement limiting device 7 will be destroyed', and then the screw of the stopper The cap 5 restricts the movement to the rear to prevent the bridge body 3 from falling from the bridge 2. In this embodiment, the function is to use the displacement-restriction device-used type bridge-prevention device 1 as the bridge seat length SE (refer to FIG. 1). About 1/4 β When the function of the type of falling bridge prevention device of the displacement limiting device of the present invention is expressed by the relationship between the seismic force design (tf) and the relative displacement (cm) of the bridge body 3, it is like Figure 10 shows the horizontal seismic design used in the seismic method. Rd is the effective load reaction force (_t f +), SE is the bridge seat length (cm), and SF is the maximum movement design of the falling bridge prevention structure. (Cm). As mentioned above, the displacement-limiting device-used type falling-bridge prevention device 11 of the present invention has the function of being a displacement-limiting device during normal temperature changes or earthquakes, and it can be used as a falling-bridge prevention device in unexpected large earthquakes. The function is to have both functions Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, [Inventive Effect] As explained above, the displacement limiting device related to the present invention is a type of falling bridge prevention device, which is used to erection a coupling member of a predetermined length on the coupling member Stoppers are provided at both ends to prevent the bridge body from falling from the bridge. The bridge prevention device is sandwiched between the aforementioned stoppers due to the displacement limiting device that restricts the horizontal displacement of the bridge body. At the same time that the bridge frame falls -10- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 45 908 6 A7 ___B7________ 5. Description of the invention (8), The displacement limiting device is used to limit the movement of the bridge axis during the earthquake, making it a displacement limiting device that has two functions. A type of fall prevention device, which makes it a simple structure that is easy to construct and reduces costs. Excellent results. In addition, it is a type of falling bridge prevention device that is a displacement limiting device that meets the requirements of road bridge specifications. The device is composed of the following: a metal cylinder that is embedded in the coupling member; a wedge plate that expands the diameter of the cylinder when the braking portion of the cylinder is embedded in the displacement of the bridge body of the coupling member; and is clamped in the wedge plate A holding plate between the brake plate and the brake portion; an elastic body sandwiched between the aforementioned wedge plate and the previously described holding plate to maintain the space between the two plates at ordinary times, so that it is an excellent effect of simple composition and simple construction In the aforementioned displacement limiting device, since it is to press the wedge plate from the opening of the cylinder to the desired position of the wedge plate, the part of the cylinder is installed on the bridge body in a pre-loaded state with an enlarged diameter, Therefore, the drop point is high at a small displacement, and then plastic deformation is performed substantially flatly, so that it has an excellent effect that can sufficiently absorb seismic energy. Because of the aforementioned wedge-shaped plate, the angled portion where the diameter of the cylinder is enlarged is provided on the outer peripheral surface ', and the angle of the angled portion is set to 2 to 20. Therefore, the cylinder can be expanded and plastically deformed without force. Because the installation of the aforementioned elastic body and the holding plate is bolted to the wedge-shaped plate of the preloaded cylinder body, the bolt mentioned before is removed after the cylinder body is installed on the bridge body, so that it is light and cheap during transportation. The excellent effect that the installation on the joint member becomes easy. This paper size applies Ningguo National Standard (CNS) A4 specification (210 X 297 mm) 丨 丨 丨! * Load! Order * 1! 丨 丨! Line {Please read the precautions on the back before filling this page) A7 459086 -___ B7___ V. Description of the invention (9) [Simplified description of the diagram] Figure 1 shows the displacement limiting device related to the present invention. The structure of 1 is a schematic side view. Fig. 2 is a cross-sectional view showing the detailed structure of the displacement limiting device 7 in the displacement limiting device use type fall-off preventing device 1 related to the present invention. Fig. 3 is a front view of the anchor plate 8a of the cylinder 8 in the displacement limiting device 7 of the displacement limiting device use type falling-fall prevention device 1 related to the present invention. FIG. 4 is an explanatory diagram of the wedge-shaped plate 9 and the holding plate 11 in the displacement-limiting device 7 of the type of falling-limiting bridge prevention device 1 related to the present invention, which are falsely fixed with bolts 12. Fig. 5 is an explanatory diagram illustrating the operating state of the type of falling-fall prevention device 1 used in the displacement limiting device of the present invention during temperature changes or small and medium-scale earthquakes. Fig. 6 is an illustration of the type of falling-fall prevention device used in the displacement limitation device of the present invention. 1 An explanatory diagram of the state of action during a large earthquake. Fig. 7 is a diagram showing the state of plastic deformation of the cylinder 8 in the same displacement limiting device 7. Fig. 8 is a diagram showing the relationship between load and displacement in the same displacement limiting device 7. Fig. 9 is an explanatory diagram for explaining an operating state of the type of falling-bridge preventing device 1 used in the displacement limiting device of the present invention during a large earthquake. Fig. 10 is a diagram showing the relationship between the force and displacement of the device I of the type of falling-bridge prevention device 1 used in the displacement limiting device of the present invention. This paper ruler uses the Chinese National Standard (CNS) A4 Rule ^ (21G 297 Gongchu) -12 ^ _ '--- --- Γ --------------------- Order · ------ Line ί Please read the notes on the back 顼 before filling in this article) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 45 908 6 A7 B7 V. Description of the invention (ίο) Figure 11 shows the same In the displacement limiting device 7 of the displacement limiting device universal fall prevention device 1 according to the present invention, a half-section front view of each example of each cylinder is shown. Fig. 12 is a graph showing the relationship between the load-displacement curves of experiments performed on the same cylinders. Fig. 13 is a front view of the structure of the fall prevention device A related to the conventional example. Fig. 14 is an explanatory diagram of the use state of the fall prevention device a related to the same conventional example. Fig. 15 is an explanatory diagram of the use state of the fall prevention device a related to the same conventional example. Fig. 16 is an explanatory diagram of the use state of the fall prevention device a related to the same conventional example. [Symbol] ί — 1 ^ -------- l · -Equipment --- (Jing first read the precautions on the back and then fill out this page) Order the V 1 Displacement Limiting Device to be used by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs to install a falling bridge prevention device Su 2 bridge frame · v 2 a fence wall 3 bridge body 4 combined line 4 a cable shell 4 b screw groove 4 c conduit 5 and 6 screw cap f This paper standard is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) -13- 459086 A7 B7 V. Description of the invention (11> 7 8 9 ab 0 1 b 2 3 Displacement limiter cylinder wedge plate oblique recess recess spring holding plate through hole recessed bolt protection cover-- --1 ---------- Packing --- (Please read the precautions on the back before filling out this page) Order · • Line · Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives Paper sizes are applicable to China National Standard (CNS) A4 (210 X 297 mm) -14-