JP2006144397A - Upper edge widening structure of pier - Google Patents
Upper edge widening structure of pier Download PDFInfo
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- JP2006144397A JP2006144397A JP2004336451A JP2004336451A JP2006144397A JP 2006144397 A JP2006144397 A JP 2006144397A JP 2004336451 A JP2004336451 A JP 2004336451A JP 2004336451 A JP2004336451 A JP 2004336451A JP 2006144397 A JP2006144397 A JP 2006144397A
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- 230000036633 rest Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
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- 238000007429 general method Methods 0.000 description 1
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Abstract
Description
この発明は、橋脚の上縁を、橋の長手方向に拡幅するための、橋脚の上縁拡幅構造に関するものである。 The present invention relates to a structure for widening the upper edge of a pier for widening the upper edge of the pier in the longitudinal direction of the bridge.
従来、既存橋梁の耐震補強対策のひとつに、桁かかり長の確保があった。一般的な桁かかり長確保の施工方法は、橋脚の上端部分の側面において、鉄筋アンカーを配備してコンクリートを打設する方法とか、鋼製のブラケットをアンカーで固定する方法等の、上縁拡幅工法であった。 Traditionally, one of the measures for seismic reinforcement of existing bridges has been to secure a girder length. The general method of securing the girder length is to widen the upper edge, such as by placing concrete reinforcements on the side of the upper end of the pier, or by fixing steel brackets with anchors. It was a construction method.
しかし、前記従来の上縁拡幅工法によると、アンカーの設置のために、橋脚に孔を明ける必要があり、この削孔作業で、既存構造物の鉄筋に損傷を与える虞があった。 However, according to the conventional upper edge widening method, it is necessary to make a hole in the pier to install the anchor, and this drilling operation may damage the reinforcing bar of the existing structure.
この発明は、上記した従来の欠点を解決するためになされたものであり、その目的とするところは、既存構造物に損傷を与えることがなく、かつ、安定して配設される、橋脚の上縁拡幅構造を提供することにある。 The present invention has been made to solve the above-described conventional drawbacks, and the object of the present invention is to prevent damage to existing structures and to provide a stable arrangement of piers. It is to provide an upper edge widening structure.
この発明に係る橋脚の上縁拡幅構造は、前記目的を達成するために、次の構成からなる。すなわち、
請求項１に記載の発明に係る橋脚の上縁拡幅構造は、橋脚の上縁を、橋の長手方向に拡幅するための上縁拡幅構造である。この上縁拡幅構造は、前記橋脚の上に載り、その橋脚の上縁を拡幅すべく、その橋脚における前記長手方向の各端から張り出すように延設される上部部分と、前記上部部分から、前記橋脚における前記長手方向の各側に位置する各側面に沿って下方に延設される下部部分とを、備える。
The upper edge widening structure of the pier according to the present invention has the following configuration in order to achieve the object. That is,
The upper edge widening structure of the pier according to the invention described in claim 1 is an upper edge widening structure for widening the upper edge of the pier in the longitudinal direction of the bridge. The upper edge widening structure is placed on the pier, and is extended from the upper portion so as to extend from each longitudinal end of the pier in order to widen the upper edge of the pier. And a lower portion extending downward along each side surface of each side of the bridge pier located on each side in the longitudinal direction.
この上縁拡幅構造によると、橋脚の上に載る上部部分が、橋脚における、橋の長手方向の各端から張り出すように延設される。そして、この延設された部分によって、橋脚の上縁が拡幅される。また、上縁拡幅構造は、上部部分から、橋脚の各側面に沿って下方に延設される下部部分を備えている。こうして、これら下部部分が、両側から橋脚を挟むように位置することとなり、この上縁拡幅構造は、橋脚に対して安定する。 According to this upper edge widening structure, the upper part that rests on the pier extends so as to project from each end of the pier in the longitudinal direction of the bridge. And the upper edge of the pier is widened by this extended part. The upper edge widening structure includes a lower portion extending downward from the upper portion along each side surface of the pier. Thus, these lower portions are positioned so as to sandwich the pier from both sides, and the upper edge widening structure is stable with respect to the pier.
また、請求項２に記載の発明に係る橋脚の上縁拡幅構造のように、請求項１に記載の上縁拡幅構造において、前記上部部分は、前記橋脚の上に載置される第１上部部材と、その第１上部部材に接続されて、前記橋脚の前記各端から張り出す第２上部部材とを備え、前記下部部分は、前記第２上部部材から下方に延びて、その下部部分と前記第２上部部材とが、一体化されて本体部を構成していてもよい。つまり、この上縁拡幅構造は、橋脚の上に載置される第１上部部材と、第２上部部材および下部部分からなる本体部とに分けられている。したがって、この上縁拡幅構造の施工にあたっては、始めに、第１上部部材を、橋脚の上に載置する。そして、第１上部部材に、本体部の第２上部部材を接続することで、この本体部を第１上部部材に組み付ける。こうして、この上縁拡幅構造を橋脚に対して簡単に施工することができる。 Further, in the upper edge widening structure according to claim 1, like the upper edge widening structure of the pier according to the invention of claim 2, the upper portion is a first upper portion placed on the pier. A member, and a second upper member connected to the first upper member and projecting from each end of the pier, the lower portion extending downward from the second upper member, and the lower portion The second upper member may be integrated to form a main body. That is, the upper edge widening structure is divided into a first upper member placed on the bridge pier and a main body portion composed of the second upper member and the lower portion. Therefore, in the construction of the upper edge widening structure, first, the first upper member is placed on the pier. Then, the main body is assembled to the first upper member by connecting the second upper member of the main body to the first upper member. Thus, the upper edge widened structure can be easily constructed on the pier.
また、請求項３に記載の発明に係る橋脚の上縁拡幅構造のように、請求項２に記載の上縁拡幅構造において、前記第１上部部材は、前記橋脚の前記各端から張り出す張出し部を有し、前記第２上部部材は、前記張出し部の上に載せられてもよい。こうして、第２上部部材が、橋脚の上に載置される第１上部部材に載せられることで、第１上部部材と、第２上部部材つまりは本体部との接続が容易となる。 Further, in the upper edge widening structure according to claim 2, like the upper edge widening structure of the pier according to the invention according to claim 3, the first upper member is an overhang projecting from each end of the pier. And the second upper member may be placed on the overhanging portion. In this way, the second upper member is placed on the first upper member placed on the pier, so that the connection between the first upper member and the second upper member, that is, the main body is facilitated.
また、請求項４に記載の発明に係る橋脚の上縁拡幅構造のように、請求項２または３に記載の上縁拡幅構造において、前記第２上部部材は、前記橋脚の上方部にて、前記第１上部部材の上に載る延出部を有してもよい。こうして、第２上部部材は、延出部によって、橋脚側まで延びることとなり、第１上部部材と第２上部部材とから構成される上部部分の強度が増加する。 Further, in the upper edge widening structure according to claim 2 or 3, like the upper edge widening structure of the pier according to the invention of claim 4, the second upper member is at an upper part of the pier, You may have an extension part mounted on the said 1st upper member. Thus, the second upper member extends to the pier side by the extending portion, and the strength of the upper portion constituted by the first upper member and the second upper member is increased.
また、請求項５に記載の発明に係る橋脚の上縁拡幅構造のように、請求項２ないし４のいずれか１項に記載の上縁拡幅構造において、前記下部部分は、前記第２上部部材から下方に延びる複数の下部部材と、それら複数の下部部材を連結する連結片とを備えてもよい。 Further, in the upper edge widening structure according to any one of claims 2 to 4, like the upper edge widening structure of the pier according to the invention according to claim 5, the lower part is the second upper member. You may provide the several lower member extended below from and the connection piece which connects these several lower members.
この発明に係る橋脚の上縁拡幅構造によれば、橋脚の上に載る上部部分と、その上部部分から橋脚の各側面に沿って下方に延設される下部部分とを備えることで、これら下部部分が、両側から橋脚を挟むように位置することとなるため、この上縁拡幅構造は、既存構造物に損傷を与えることがなく、かつ、安定して配設される。 According to the upper edge widening structure of the pier according to the present invention, the lower portion includes an upper portion that rests on the pier and a lower portion that extends downward from the upper portion along each side surface of the pier. Since the portion is positioned so as to sandwich the pier from both sides, the upper edge widening structure is stably disposed without damaging the existing structure.
以下、この発明に係る橋脚の上縁拡幅構造を実施するための最良の形態を図面に基づいて説明する。 Hereinafter, the best mode for carrying out the upper edge widening structure of a pier according to the present invention will be described with reference to the drawings.
図１ないし図５は、本発明に係る橋脚の上縁拡幅構造の一実施の形態を示す。図中符号１は、橋である。１ａ、１ｂおよび１ｃは、それぞれ、橋１を構成する、桁、橋台および橋脚である。２は、橋脚１ｃの上縁を、橋１の長手方向に拡幅するための上縁拡幅構造である。 1 to 5 show an embodiment of an upper edge widening structure of a pier according to the present invention. Reference numeral 1 in the figure denotes a bridge. Reference numerals 1a, 1b, and 1c denote a girder, an abutment, and a pier that constitute the bridge 1, respectively. Reference numeral 2 denotes an upper edge widening structure for widening the upper edge of the bridge pier 1 c in the longitudinal direction of the bridge 1.
ここで、上縁拡幅構造２は、上部部分３と下部部分６とを備えている。上部部分３は、橋脚１ｃの上に載り、その橋脚１ｃの上縁を拡幅すべく、その橋脚１ｃにおける、橋１の長手方向の各端から張り出すように延設される。そして、下部部分６は、前記上部部分３から、橋脚１ｃにおける、橋１の長手方向の各側に位置する各側面１ｄに沿って下方に延設されている。 Here, the upper edge widening structure 2 includes an upper portion 3 and a lower portion 6. The upper portion 3 is placed on the pier 1c and extends so as to extend from each end of the pier 1c in the longitudinal direction of the bridge 1 so as to widen the upper edge of the pier 1c. The lower portion 6 extends downward from the upper portion 3 along each side surface 1d located on each side of the bridge 1 in the longitudinal direction of the bridge pier 1c.
具体的には、この上縁拡幅構造２は、板材、特に鋼板材によって形成されている。ここで、上部部分３は、橋脚１ｃの上に載置される第１上部部材４と、その第１上部部材４に接続されて、橋脚１ｃの各端から張り出す第２上部部材５、５とを備えている。そして、これら第１上部部材４と第２上部部材５、５とは、橋１の長手方向に位置調節されてボルト１０、１０（詳細には、ボルト１０およびナット１０ａ）により接続される。すなわち、第１上部部材４と第２上部部材５との、ボルト１０が貫通する孔（図示せず）のいずれか一方あるいは両方は、橋１の長手方向を長手とする長孔となっている。また、下部部分６は、第２上部部材５から下方に延びている。そこで、その下部部分６と第２上部部材５とが、一体化されて本体部７を構成している。すなわち、この上縁拡幅構造２の施工にあたっては、始めに、第１上部部材４を、橋脚１ｃと橋１の上部構造との間の隙間１１から挿入し、その第１上部部材４を、橋脚１ｃの上に載置する（図２参照）。そして、第１上部部材４の各端に、本体部７を組み付ける。なお、図２ないし図４において、１ｅは、橋脚１ｃの上面に設けられた台座である。１ｆは、台座１ｅ上に設置されたゴムシュー等の支承であり、この支承１ｆ上に桁１ａ（橋１の上部構造）が載せられる。 Specifically, the upper edge widening structure 2 is formed of a plate material, particularly a steel plate material. Here, the upper part 3 is connected to the first upper member 4 mounted on the pier 1c and the second upper members 5, 5 that are connected to the first upper member 4 and project from the ends of the pier 1c. And. The first upper member 4 and the second upper members 5 and 5 are adjusted in position in the longitudinal direction of the bridge 1 and connected by bolts 10 and 10 (specifically, bolts 10 and nuts 10a). That is, one or both of the holes (not shown) through which the bolts 10 penetrate the first upper member 4 and the second upper member 5 are long holes whose longitudinal direction is the length of the bridge 1. . Further, the lower portion 6 extends downward from the second upper member 5. Therefore, the lower portion 6 and the second upper member 5 are integrated to form the main body portion 7. That is, in the construction of the upper edge widening structure 2, first, the first upper member 4 is inserted from the gap 11 between the pier 1c and the upper structure of the bridge 1, and the first upper member 4 is inserted into the pier. It is placed on 1c (see FIG. 2). Then, the main body portion 7 is assembled to each end of the first upper member 4. 2 to 4, 1e is a pedestal provided on the upper surface of the pier 1c. 1f is a support such as a rubber shoe installed on the pedestal 1e, and a girder 1a (the upper structure of the bridge 1) is placed on the support 1f.
また、第１上部部材４は、橋脚１ｃの前記各端から張り出す張出し部４ａを有している。そして、第２上部部材５は、この張出し部４ａの上に載せられる。詳細には、第１上部部材４は、複数（図示実施の形態においては、２枚）が、支承１ｆを間に置くようにして互いに離れて設けられ、第２上部部材５は、複数の第１上部部材４、４における張出し部４ａ、４ａに渡るようにして、それら張出し部４ａ、４ａの上に載せられる（図３、図４参照）。また、第２上部部材５は、橋脚１ｃの上方部にて、第１上部部材４の上に載る延出部５ａを有している。 Moreover, the 1st upper member 4 has the overhang | projection part 4a which protrudes from the said each end of the pier 1c. The second upper member 5 is placed on the overhanging portion 4a. Specifically, a plurality of first upper members 4 (two in the illustrated embodiment) are provided so as to be spaced apart from each other with the support 1f interposed therebetween, and the second upper member 5 includes a plurality of first upper members 5. 1 The upper members 4 and 4 are placed on the overhanging portions 4a and 4a so as to extend over the overhanging portions 4a and 4a (see FIGS. 3 and 4). Moreover, the 2nd upper member 5 has the extension part 5a mounted on the 1st upper member 4 in the upper part of the bridge pier 1c.
下部部分６は、第２上部部材５から下方に延びる複数（図示実施の形態においては、５枚）の下部部材６ａ、６ａと、それら複数の下部部材６ａ、６ａを連結する連結片６ｂ、６ｂとを備える。ここで、下部部材６ａ、６ａは、第１上部部材４、４における張出し部４ａ、４ａ間を通って下方に延びている。ここで、これら下部部材６ａ、６ａは、その板面が、橋１の幅方向を向き、その橋１の幅方向に並んでいる。そして、この下部部材６ａは、下方ほど幅狭となるように形成されている。連結片６ｂは、橋脚１ｃ側であって、その橋脚１ｃと対面するように設けられている。また、この連結片６ｂは、下部部分６、６の上部と下部との２ヶ所に設けられている。なお、第２上部部材５と下部部材６ａ、６ａ、そして、下部部材６ａ、６ａと連結片６ｂ、６ｂとは、例えば、溶接により接合される。 The lower portion 6 includes a plurality of (in the illustrated embodiment, five) lower members 6a and 6a that extend downward from the second upper member 5, and connecting pieces 6b and 6b that connect the plurality of lower members 6a and 6a. With. Here, the lower members 6 a and 6 a extend downward through the extended portions 4 a and 4 a of the first upper members 4 and 4. Here, the plate surfaces of the lower members 6 a and 6 a face the width direction of the bridge 1 and are arranged in the width direction of the bridge 1. And this lower member 6a is formed so that it may become narrower as it goes downward. The connecting piece 6b is provided on the pier 1c side so as to face the pier 1c. Further, the connecting piece 6b is provided at two locations, the upper portion and the lower portion of the lower portions 6 and 6. The second upper member 5 and the lower members 6a and 6a, and the lower members 6a and 6a and the connecting pieces 6b and 6b are joined by welding, for example.
次に、以上の構成からなる橋脚１ｃの上縁拡幅構造２の作用効果について説明する。この上縁拡幅構造２によると、橋脚１ｃの上に載る上部部分３（図示実施の形態においては、第１上部部材４と第２上部部材５とで構成される。）が、橋脚１ｃにおける、橋１の長手方向の各端から張り出すように延設される。そして、この延設された部分によって、橋脚１ｃの上縁が拡幅される。そして、上縁拡幅構造２は、上部部分３から、橋脚１ｃの各側面１ｄに沿って下方に延設される下部部分６を備えている。こうして、これら下部部分６、６が、橋脚１ｃの側面１ｄ、１ｄに当接、あるいは近接し、両側から橋脚１ｃを挟むように位置することとなる。したがって、この上縁拡幅構造２は、既存構造物（橋１）に損傷を与えることがなく、しかも、橋脚１ｃに対して安定して配設される。すなわち、桁１ａが橋脚１ｃから外れて上部部分３（詳細には、第２上部部材５）に載った際には、橋脚１ｃの両側に位置するとともに上部部分３によって繋がった下部部分６、６が、橋脚１ｃの側面１ｄ、１ｄから反力を受けること等により、桁１ａの荷重を効果的に支えることができる。こうして、この上縁拡幅構造２により、桁かかり長が確保され、大地震の際の、橋脚１ｃからの、桁１ａつまりは橋１の上部構造の落下を防ぐことができる。 Next, the effect of the upper edge widening structure 2 of the bridge pier 1c which consists of the above structure is demonstrated. According to the upper edge widening structure 2, the upper portion 3 (in the illustrated embodiment, composed of the first upper member 4 and the second upper member 5) placed on the pier 1c is formed on the pier 1c. It extends so that it may overhang from each longitudinal end of the bridge 1. And the upper edge of the pier 1c is widened by this extended part. The upper edge widening structure 2 includes a lower portion 6 extending downward from the upper portion 3 along each side surface 1d of the pier 1c. Thus, these lower portions 6 and 6 are positioned so as to contact or be close to the side surfaces 1d and 1d of the pier 1c and sandwich the pier 1c from both sides. Therefore, the upper edge widening structure 2 does not damage the existing structure (bridge 1) and is stably disposed with respect to the pier 1c. That is, when the girder 1a is detached from the pier 1c and placed on the upper portion 3 (specifically, the second upper member 5), the lower portions 6 and 6 are located on both sides of the pier 1c and connected by the upper portion 3. However, the load of the girder 1a can be effectively supported by receiving reaction force from the side surfaces 1d and 1d of the pier 1c. Thus, the upper edge widening structure 2 secures a girder length and can prevent the girder 1a, that is, the upper structure of the bridge 1 from dropping from the pier 1c in the event of a large earthquake.
ここにおいて、第１上部部材４と第２上部部材５とが、橋１の長手方向に位置調整されることで、下部部分６、６が、橋脚１ｃを確実に挟むことができる。したがって、この上縁拡幅構造２は、橋脚１ｃに対して一層安定して配設される。さらに、第２上部部材５は、橋脚１ｃ側まで延びる延出部５ａを有している。したがって、第１上部部材４と第２上部部材５とから構成される上部部分３の強度が増加し、特に、上下方向のせん断荷重に対して有効である。 Here, the position of the first upper member 4 and the second upper member 5 is adjusted in the longitudinal direction of the bridge 1 so that the lower portions 6 and 6 can securely sandwich the pier 1c. Therefore, the upper edge widening structure 2 is more stably disposed with respect to the pier 1c. Furthermore, the 2nd upper member 5 has the extension part 5a extended to the pier 1c side. Therefore, the strength of the upper portion 3 composed of the first upper member 4 and the second upper member 5 is increased, and this is particularly effective for a vertical shear load.
また、この上縁拡幅構造２は、橋脚１ｃの上に載置される第１上部部材４と、第２上部部材５および下部部分６からなる本体部７とに分けられている。したがって、この上縁拡幅構造２の施工にあたっては、始めに、第１上部部材４を、橋脚１ｃの上に載置する。そして、第１上部部材４に、本体部７における第２上部部材５を接続することで、この本体部７を第１上部部材４に組み付ける。こうして、この上縁拡幅構造２を橋脚１ｃに対して簡単に施工することができる。さらに、第２上部部材５が、橋脚１ｃの上に載置された第１上部部材４に載せられることで、第１上部部材４と、第２上部部材５つまりは本体部７との接続が容易となる。特に、図示実施の形態においては、第２上部部材５が、複数の第１上部部材４、４に渡るように載せられることで、第２上部部材５は、第１上部部材４に安定して載せられ、第１上部部材４と、第２上部部材５つまりは本体部７との接続が一層容易となる。その上、第１上部部材４と、第２上部部材５つまりは本体部７とが、ボルト１０によって接続されることで、この上縁拡幅構造２の施工が一層簡単となる。 The upper edge widening structure 2 is divided into a first upper member 4 placed on the bridge pier 1 c and a main body portion 7 including a second upper member 5 and a lower portion 6. Therefore, in the construction of the upper edge widening structure 2, first, the first upper member 4 is placed on the pier 1c. Then, the main body 7 is assembled to the first upper member 4 by connecting the second upper member 5 in the main body 7 to the first upper member 4. Thus, the upper edge widening structure 2 can be easily applied to the pier 1c. Further, the second upper member 5 is placed on the first upper member 4 placed on the pier 1c, so that the connection between the first upper member 4 and the second upper member 5, that is, the main body portion 7 is achieved. It becomes easy. In particular, in the illustrated embodiment, the second upper member 5 is mounted on the plurality of first upper members 4 and 4 so that the second upper member 5 is stably attached to the first upper member 4. The first upper member 4 and the second upper member 5, that is, the main body portion 7 are more easily connected. In addition, since the first upper member 4 and the second upper member 5, that is, the main body portion 7 are connected by the bolt 10, the construction of the upper edge widening structure 2 is further simplified.
なお、本発明は、上述した実施の形態に限定されるわけではなく、その他種々の変更が可能である。例えば、この上縁拡幅構造２は、鋼板材によって形成されているが、鋼以外の板材によって形成されてもよい。また、特に、上縁拡幅構造２における第１上部部材４等は、鋼板材以外に、例えばＦＲＰ製の板材からなっていてもよい。さらに、上縁拡幅構造２は、板材以外に形鋼等の形材、あるいは、コンクリート等その他の材料によって形成されてもよい。 In addition, this invention is not necessarily limited to embodiment mentioned above, A various other change is possible. For example, the upper edge widening structure 2 is formed of a steel plate material, but may be formed of a plate material other than steel. In particular, the first upper member 4 and the like in the upper edge widening structure 2 may be made of, for example, a plate material made of FRP in addition to the steel plate material. Further, the upper edge widening structure 2 may be formed of a shape material such as a shape steel, or other materials such as concrete in addition to the plate material.
また、第１上部部材４と第２上部部材５とは、ボルト１０により接続されるが、ボルト１０以外の接続具が用いられてもよく、また、ボルト１０による接続の後に、溶接されてもよい。また、第１上部部材４と第２上部部材５とは、ボルト１０によることなく始めから、溶接あるいは接着により接続されてもよく、その接続方法は、任意である。 Moreover, although the 1st upper member 4 and the 2nd upper member 5 are connected with the volt | bolt 10, connection tools other than the volt | bolt 10 may be used, and after the connection by the volt | bolt 10, it may be welded. Good. Moreover, the 1st upper member 4 and the 2nd upper member 5 may be connected by welding or adhesion | attachment from the beginning without using the volt | bolt 10, The connection method is arbitrary.
また、橋１は、川に架けられる渡川橋に限定されるものではなく、海に架けられる渡海橋とか、陸橋、高架橋等を含むものである。 The bridge 1 is not limited to the Togawa bridge over the river, but includes a Tokai bridge over the sea, an overpass, a viaduct, and the like.
１ 橋
１ｃ 橋脚
１ｄ 側面
２ 上縁拡幅構造
３ 上部部分
４ 第１上部部材
４ａ 張出し部
５ 第２上部部材
５ａ 延出部
６ 下部部分
７ 本体部
DESCRIPTION OF SYMBOLS 1 Bridge 1c Pier 1d Side surface 2 Upper edge widening structure 3 Upper part 4 1st upper member 4a Overhang | projection part 5 2nd upper member 5a Extension part 6 Lower part 7 Main body part
Claims (5)
前記橋脚の上に載り、その橋脚の上縁を拡幅すべく、その橋脚における前記長手方向の各端から張り出すように延設される上部部分と、
前記上部部分から、前記橋脚における前記長手方向の各側に位置する各側面に沿って下方に延設される下部部分とを、備えることを特徴とする、橋脚の上縁拡幅構造。 An upper edge widening structure for widening the upper edge of the pier in the longitudinal direction of the bridge,
An upper portion extending on the pier and extending from each longitudinal end of the pier to widen the upper edge of the pier; and
The upper edge widening structure of a bridge pier characterized by including the lower part extended below along each side surface located in each side of the said longitudinal direction in the said pier from the said upper part.
前記下部部分は、前記第２上部部材から下方に延びて、その下部部分と前記第２上部部材とが、一体化されて本体部を構成していることを特徴とする請求項１に記載の、橋脚の上縁拡幅構造。 The upper portion includes a first upper member placed on the pier, and a second upper member connected to the first upper member and projecting from each end of the pier,
The lower part extends downward from the second upper member, and the lower part and the second upper member are integrated to form a main body part. , Wide structure of the upper edge of the pier.
前記第２上部部材は、前記張出し部の上に載せられることを特徴とする請求項２に記載の、橋脚の上縁拡幅構造。 The first upper member has a projecting portion that projects from each end of the pier,
The upper edge widening structure of the pier according to claim 2, wherein the second upper member is placed on the overhanging portion.
The said lower part is equipped with the several lower member extended below from the said 2nd upper member, and the connection piece which connects these several lower members, The any one of Claim 2 thru | or 4 characterized by the above-mentioned. The widening structure of the upper edge of the pier.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205927A (en) * | 2013-04-18 | 2013-07-17 | 东北林业大学 | Anti-overturning bridge pier supporting mechanism |
| JP2014091979A (en) * | 2012-11-05 | 2014-05-19 | Sho-Bond Corp | Upper edge widening structure of bridge footing, and method for widening upper edge |
| JP2015218454A (en) * | 2014-05-15 | 2015-12-07 | 靖弘 井上 | Bridge seat member fitting structure for bridge lower structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014091979A (en) * | 2012-11-05 | 2014-05-19 | Sho-Bond Corp | Upper edge widening structure of bridge footing, and method for widening upper edge |
| CN103205927A (en) * | 2013-04-18 | 2013-07-17 | 东北林业大学 | Anti-overturning bridge pier supporting mechanism |
| JP2015218454A (en) * | 2014-05-15 | 2015-12-07 | 靖弘 井上 | Bridge seat member fitting structure for bridge lower structure |
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