JP2922749B2 - Box girder bridge - Google Patents
Box girder bridgeInfo
- Publication number
- JP2922749B2 JP2922749B2 JP14395893A JP14395893A JP2922749B2 JP 2922749 B2 JP2922749 B2 JP 2922749B2 JP 14395893 A JP14395893 A JP 14395893A JP 14395893 A JP14395893 A JP 14395893A JP 2922749 B2 JP2922749 B2 JP 2922749B2
- Authority
- JP
- Japan
- Prior art keywords
- box girder
- girder bridge
- column
- present
- bridge
- 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 - Fee Related
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は箱桁橋に関するもので
あり、特に、多室型の箱桁橋の改良に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box girder bridge, and more particularly to an improvement of a multi-room box girder bridge.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来の
此種箱桁橋１は図１１の（ａ）及び（ｂ）に示す如く、
一つの室２を有して成るものが多いが、橋梁の幅員が１
０ｍを越して広くなる場合は、横方向の断面設計に於て
スパンが長くなるため必要な部材の厚さが増加すること
になり、一室のみでは不経済となる。このため、一般に
図１１の（ｃ）及び（ｄ）に示す如く、中央部に仕切り
壁３を有してその左右に夫々室２，２を有する２室型の
箱桁橋１が用いられているが、この２室型の箱桁橋１を
製作する場合には、内型枠の面積が増すため該箱桁橋１
の製作のための設備費が嵩み、極めて不経済である。而
も、架設に際しては、作業員が左右の各室２，２相互を
自由に往来できないので、隣接する箱桁橋１相互の組立
てや、箱桁橋内部に設置せられる外ケーブル（図示せ
ず）の配置作業等の施工性も極めて悪くなると云う問題
がある。2. Description of the Related Art A conventional box girder bridge 1 of this type is, as shown in FIGS.
Many have one room 2, but the width of the bridge is 1
If the width is larger than 0 m, the necessary length of the members increases because the span becomes long in the cross-sectional design in the lateral direction, and it becomes uneconomical to use only one room. For this reason, as shown in FIGS. 11C and 11D, a two-chamber box girder bridge 1 having a partition wall 3 in the center and rooms 2 on the left and right sides thereof is generally used. However, when manufacturing this two-chamber box girder bridge 1, the box girder bridge 1
The cost of equipment for the production is high, which is extremely uneconomical. Also, since the worker cannot freely move between the left and right chambers 2 and 2 at the time of erection, assembling of the adjacent box girder bridges 1 and an external cable (not shown) installed inside the box girder bridge. There is a problem that the workability of the arrangement work and the like in ()) becomes extremely poor.
【０００３】又、前記二つの室２，２を自由に往来でき
るようにするために、図１２に示すように、該箱桁橋１
の室２内に於てストラット４，４を八字状に配置し、そ
の上端部を合掌せしめたものも知られている。而して、
該ストラット４，４は箱桁橋１の下スラブ１ｂの内側両
端部から上スラブ１ａの内側中央部に向って斜設して合
掌せしめることにより、該箱桁橋１の剛性を保持しよう
とするものであるから、該ストラット４，４は２本を一
対として常に用いられることになり、且つ、斜設してい
ることと相俟って材料的に不経済となる欠陥がある。更
に、該箱桁橋１内に外ケーブルを配置する場合は、前記
斜設せられているストラット４，４が邪魔となって該外
ケーブルの自由な配置を妨げる欠陥もある。In order to freely move between the two chambers 2 and 2, as shown in FIG.
It is also known that struts 4 and 4 are arranged in an eight-letter shape in a room 2 and their upper ends are joined together. Thus,
The struts 4, 4 are inclined from the inner ends of the lower slab 1b of the box girder bridge 1 toward the center of the inner side of the upper slab 1a and are joined together to maintain the rigidity of the box girder bridge 1. Therefore, the struts 4 and 4 are always used as a pair, and there is a defect that the struts 4 and 4 are uneconomical in terms of material in combination with the slanting. Further, when an external cable is arranged in the box girder bridge 1, there is a defect that the obliquely arranged struts 4, 4 hinder the free arrangement of the external cable.
【０００４】そこで、箱桁橋の架設時に於て、該箱桁橋
内を作業員が自由に往来でき、更に、外ケーブルの配置
作業にも支障を来すことなく、経済的で、且つ、施工性
に優れた箱桁橋を得るために解決せらるべき技術的課題
が生じてくるのであり、本発明は該課題を解決すること
を目的とする。[0004] Therefore, when the box girder bridge is erected, workers can freely move in and out of the box girder bridge, and furthermore, it is economical and does not hinder the work of arranging the outer cable. A technical problem to be solved arises in order to obtain a box girder bridge excellent in workability, and the present invention aims to solve the problem.
【０００５】[0005]
【課題を解決するための手段】この発明は上記目的を達
成するために提案せられたものであり、箱桁橋の上下ス
ラブ間に立設せらるべき柱体の立設位置であって、且
つ、該上下スラブに夫々内側に向けて凸部を対峙して形
成し、又は、該位置に梁用鉄筋を配筋して箱桁橋に連続
した梁部を構成し、上下スラブの該梁部間に複数の柱体
を間隔をおいて垂直に立設し、作業員が該柱体間を自由
に往来できるように形成された箱桁橋を提供するもので
ある。SUMMARY OF THE INVENTION The present invention has been proposed in order to achieve the above-mentioned object, and includes a vertical bridge of a box girder bridge .
The position of the pillar to be erected between the rubs, and
The upper and lower slabs face each other with the convex portions facing inward.
Or rebar with beam reinforcement at the position and continuous to box girder bridge
And a plurality of pillars between the upper and lower slabs.
Are set up vertically with an interval between them, and workers can freely move between the columns.
The present invention provides a box girder bridge formed so as to be able to travel to and from .
【０００６】この発明は、箱桁橋内部に設けられるべき
従来の仕切壁の立設位置であって、且つ、該上下スラブ
に、夫々内側に向けて凸部を対峙して形成し、又は、該
位置に梁用鉄筋を配筋して箱桁橋に連続した梁部が構成
され、該梁部間に柱体を所定間隔を有して垂直に立設さ
れて成るものであるから、該箱桁橋の部材厚さを可及的
に薄く形成できて経済的に優位となると共に、該箱桁橋
内部を自由に往来できるので、従来の２室型以上の箱桁
橋であっても、作業員は自由に往来できて１室型の箱桁
橋の利点をも有し、更に従来の仕切り壁に代わるのであ
るから、断面は一層縮小して軽量化すると同時に内型枠
も簡素化でき、且つ、該箱桁橋内における外ケーブルの
配置作業にも支障を来すことがないので施工性も向上
し、コストダウンに寄与する。[0006] The present invention relates to a conventional partition wall which is to be provided inside a box girder bridge , and wherein the vertical slab is provided.
The convex portions are formed facing each other toward the inside, or
Reinforcement for beam is arranged at the position to form a beam part continuous to the box girder bridge
The pillars are vertically erected between the beams at a predetermined interval.
Since is it is intended made, it becomes economically advantage made as thin as possible form the member thickness of the box girder bridge, it is possible traffic freely inside the box girder bridge, the conventional two-chamber type Even with the above box girder bridge, workers can freely move around and have the advantage of a one-chamber type box girder bridge, and since it replaces the conventional partition wall, the cross section is further reduced and lighter At the same time, the inner formwork can be simplified, and the work of arranging the outer cable in the box girder bridge is not hindered, so that the workability is improved and the cost is reduced.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図１乃至図１０に
従って詳述する。尚、従来の箱桁橋と対称部分は同一符
号を用いるものとする。図に於て本発明に係る箱桁橋１
は、従来の箱桁橋１中央部に設けた仕切り壁３に代えて
柱体５を垂直に立設した。斯くして、該柱体５は室２の
略中央部に１本又は左右に各１本が立設されたことにな
り、該室２は実質的に一つの室を形成することになる。
但し、従来、中央部に二つの仕切り壁を有して３室に構
成されていたものも、図２に示す如く該仕切り壁に代え
て前記柱体５，５を立設し、前述の３室を実質的に１室
に形成してもよい。但し、この場合、柱体５，５は桁に
加わる剪断力も分担するから断面形状は長方形が適して
いる。斯くして、室２内に於ては作業員が自由に往来で
きるので、該箱桁橋１内に於ける外ケーブル（図示せ
ず）の配置作業等の施工性が向上する。而も、該柱体５
は垂直に立設されているため材料費も低減し、更に内型
枠も簡素化できる。 而して、本発明は、設計時の計算
の結果を次表に示したように、従来例に比し優れた利点
を有することが判明した。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. It should be noted that the same reference numerals are used for the symmetrical parts of the conventional box girder bridge. In the figure, the box girder bridge 1 according to the present invention
Has a vertical column 5 instead of the partition wall 3 provided at the center of the conventional box girder bridge 1. In this manner, one pillar 5 or one pillar on each side is provided substantially at the center of the chamber 2, and the chamber 2 substantially forms one chamber.
However, in the case of the conventional three-chamber configuration having two partition walls at the center, the column members 5 and 5 are erected instead of the partition walls as shown in FIG. The chamber may be formed substantially as a single chamber. However, in this case, since the pillars 5 and 5 also share the shearing force applied to the girders, a rectangular cross section is suitable. Thus, since the worker can freely move in and out of the room 2, the workability such as the work of arranging the external cable (not shown) in the box girder bridge 1 is improved. The pillar 5
Since the is vertically installed, the material cost can be reduced and the inner mold can be simplified. Thus, as shown in the following table, the results of calculations at the time of design have been found to have excellent advantages over the conventional example.
【０００８】[0008]
【表１】 [Table 1]
【０００９】上記表１に示す（ａ）タイプ及び（ｂ）タ
イプは１室型の箱桁橋、（ｃ）及び（ｄ）タイプは２室
型の箱桁橋、（ｅ）タイプは本発明に係る箱桁橋につい
て計算したものである。該表によれば、本発明に係る
（ｅ）タイプが最も有利であることが確認できる。又、
該（ｅ）タイプは型枠長においても、（ａ）タイプの１
室型の箱桁橋よりやや劣るが、他のタイプより最も有利
であることが理解できる。The (a) and (b) types shown in Table 1 above are single-room box girder bridges, the (c) and (d) types are two-room box girder bridges, and the (e) type is the present invention. It is calculated for the box girder bridge according to. According to the table, it can be confirmed that the type (e) according to the present invention is most advantageous. or,
The type (e) is the same as the type (a) in the form length.
It can be seen that it is slightly inferior to the room type box girder bridge, but is the most advantageous than the other types.
【００１０】又、本発明に係る前記柱体５は、現場打設
コンクリート又はプレキャストコンクリートによって形
成することができ、鉄骨による形成も可能であって、材
料選択が自由に行われる。更に、本発明は現場打ちのコ
ンクリート箱桁橋に限らず、プレキャストコンクリート
箱桁橋にも適用されることは当然である。The column 5 according to the present invention can be formed of cast-in-place concrete or precast concrete, and can also be formed of steel, so that the material can be freely selected. Further, the present invention is naturally applied to not only a cast-in-place concrete box girder bridge but also a precast concrete box girder bridge.
【００１１】又、前記柱体５の据え付け方法としては、
箱桁橋１の打設時にプレキャストコンクリート柱体５を
同時に又は後から据え付け、或いは現場打設によって据
え付けてもよい。又、図３の実施例図に示す箱桁橋１
は、上スラブ１ａと下スラブ１ｂの略中央部の巾方向に
凸部６，６を対峙して設けて梁部材としてあり、そし
て、該凸部６，６間に該柱体５，５を立設した構成にな
っているが、図４に示す如く上下の各スラブ１ａ，１ｂ
の厚さは一定のままで、前記凸部６，６の位置に梁用の
鉄筋Ｐ，Ｐ…を配筋して梁部材として機能させることも
できる。この場合、鉄筋量は増えるが断面が更に縮少
し、型枠も容易に組立てることが可能となる。The method of mounting the column 5 is as follows.
The precast concrete column 5 may be installed simultaneously or later when the box girder bridge 1 is installed, or may be installed by casting in place. Further, the box girder bridge 1 shown in FIG.
Is provided as a beam member by providing convex portions 6 and 6 in the width direction substantially at the center portion of the upper slab 1a and the lower slab 1b as a beam member, and connecting the column members 5 and 5 between the convex portions 6 and 6. The slabs 1a and 1b are arranged vertically as shown in FIG.
Can be used as beam members by arranging reinforcing bars P, P... In this case, although the amount of reinforcing bars increases, the cross section is further reduced, and the formwork can be easily assembled.
【００１２】又、本発明の前記柱体５を箱桁橋１内に後
から立て込む場合は、該柱体５は伸縮自在に形成されて
いるものを用いるを可とする。即ち、該箱桁橋１内の上
下スラブ１ａ，１ｂに設けた前記凸部６，６の表面に凹
部７，７を設け、該凹部７，７に柱体５の上下端を挿入
して係合させるのであるから、該柱体５は伸縮自在な構
成として用いられる。この場合、該凹部７，７は球座７
ａ，７ａを埋設し、ここに柱体５を挿入してヒンジ結合
とすることにより、上下のスラブ１ａ，１ｂの梁部材と
剛結しない構造としてもよい。Further, when the column 5 of the present invention is installed upright in the box girder bridge 1 later, the column 5 may be formed so as to be stretchable. That is, concave portions 7, 7 are provided on the surfaces of the convex portions 6, 6 provided on the upper and lower slabs 1a, 1b in the box girder bridge 1, and upper and lower ends of the column 5 are inserted into the concave portions 7, 7 to engage. Since they are combined, the column body 5 is used as a telescopic structure. In this case, the recesses 7, 7
By embedding the a and 7a and inserting the column body 5 therein to form a hinge connection, a structure may not be rigidly connected to the beam members of the upper and lower slabs 1a and 1b.
【００１３】更に、柱体５は箱桁橋１内に立て込む関係
上、クレーン等の重機を用いることなく人力によって立
て込むのであるから、可及的に軽量部材を用いるを可と
する。例えば図６に示す如く、該柱体５はプレキャスト
コンクリートの代わりに鋼管柱５ａとボルト８によって
柱体５を形成し、そして、該鋼管柱５ａの内側面に雌螺
子部を形成し、該雌螺子部に螺合するボルト８の上部を
該雌螺子部に螺合し、ナットハンドル９を回動して、該
柱体５の上下の長さを調節できるようにしてもよい。そ
こで、該柱体５は、予め長さを短かくしてその下端部を
下スラブ１ｂに設けた凹部７に立て込み、そして、ナッ
トハンドル９を回動して該鋼管柱５ａの上端部を上スラ
ブ１ａに設けた凹部７に当接させて立設するのである。Further, since the column 5 is set up in the box girder bridge 1 by human power without using a heavy machine such as a crane, it is possible to use a lightweight member as much as possible. For example, as shown in FIG. 6, instead of precast concrete, the pillar 5 forms a pillar 5 by a steel pipe pillar 5a and a bolt 8, and forms a female screw portion on the inner surface of the steel pipe pillar 5a. The upper portion of the bolt 8 screwed to the screw portion may be screwed to the female screw portion, and the nut handle 9 may be rotated to adjust the vertical length of the column 5. Therefore, the column 5 is shortened in advance and its lower end is set up in the concave portion 7 provided in the lower slab 1b, and then the nut handle 9 is turned so that the upper end of the steel pipe column 5a is moved to the upper slab. It stands in contact with the concave portion 7 provided in 1a.
【００１４】尚、該柱体５の立て込み時期は、箱桁橋１
の製作後であるならば何時でもよいが、型枠を脱型すれ
ば上スラブ１ａは自重によって撓むので、隣接の箱桁橋
１を結合させる場合には前記脱型後、直ちに該柱体５を
立て込むを可とする。又、図７に示す伸縮自在の柱体５
は、ねじ式継手１０の上部と下部に夫々上ねじ鋼棒１１
と下ねじ鋼棒１１ａとを螺入して構成されている。そし
て、該ねじ式継手１０を回動させることにより、上下の
ねじ鋼棒１１及び１１ａは相互に接近したり或いは離反
したりして該柱体５の長さを調整して図６の実施例図に
示すように上下のスラブ１ａ，１ｂ間に立設される。It is to be noted that the standing time of the column 5 is determined by the box girder bridge 1
If the form is removed, the upper slab 1a bends under its own weight if the form is removed. Therefore, when connecting the adjacent box girder bridge 1, immediately after the removal, the column 5 is allowed. Also, the telescopic pillar 5 shown in FIG.
Are the upper threaded steel rods 11 at the upper and lower parts of the threaded joint 10, respectively.
And a lower threaded steel rod 11a. By rotating the screw joint 10, the upper and lower threaded steel rods 11 and 11a move closer to or away from each other to adjust the length of the column body 5, and the embodiment shown in FIG. As shown in the figure, the slabs are erected between the upper and lower slabs 1a and 1b.
【００１５】更に、図８に他の実施例を示す。同図に於
て柱体５は上鋼棒１２と下鋼棒１２ａ並びに、その間を
冠装するスリーブ１３内にグラウト材１４を充填すると
共に、シム１５を介装して成るものであり、現場にて上
下の鋼棒１２，１２ａを上下のスラブ１ａ，１ｂ間に介
装して長さ調節を行い、そして、グラウト材１４の硬化
によって固定するようにしたものである。又、前記上下
の鋼棒１２，１２ａの代わりにプレキャストコンクリー
トを用いることもできる。FIG. 8 shows another embodiment. In FIG. 1, a column body 5 is formed by filling a grout material 14 in an upper steel bar 12 and a lower steel bar 12a and a sleeve 13 covering the space between them, and interposing a shim 15 therebetween. The upper and lower steel bars 12, 12a are interposed between the upper and lower slabs 1a, 1b to adjust the length, and then fixed by hardening the grout material 14. Also, precast concrete can be used instead of the upper and lower steel bars 12, 12a.
【００１６】上記実施例はプレキャスト箱桁橋１を対称
として説明したが、現場打ちコンクリート箱桁橋１に於
ても従来の２室型以上の広幅員断面であれば、本発明を
利用できることは当然である。更に又、図９及び図１０
に他の実施例を示す。図９は一本の柱体５を示すが、図
１０は該柱体５を上下に２分割したものを示している。
而して、之等の柱体５は上端面をアンカーボルト１６，
１６…にて上スラブ１ａに取付けられる。但し、図１０
の実施例に於ては、下端部も該アンカーボルト１６，１
６…にて下スラブ１ｂに取付けられている。而して、該
柱体５の長さ調整はフラットジャッキ１７を用いて行
う。このとき、図９に於ては該フラットジャッキ１７は
下端部に配設され、その上下面の間隙にモルタル、セメ
ントミルク、ゴム、硬質ファイバー等から成る間隔材１
８，１８を埋めてある。In the above embodiment, the precast box girder bridge 1 has been described as symmetrical. However, the present invention can be applied to the cast-in-place concrete box girder bridge 1 if it has a wide cross section of two or more conventional types. Of course. 9 and FIG.
Shows another embodiment. FIG. 9 shows one column 5, while FIG. 10 shows the column 5 divided into two parts vertically.
Thus, these pillars 5 have the upper end faces anchor bolts 16,
16 are attached to the upper slab 1a. However, FIG.
In the embodiment of FIG.
6 are attached to the lower slab 1b. Thus, the length adjustment of the column 5 is performed using the flat jack 17. At this time, in FIG. 9, the flat jack 17 is disposed at the lower end, and a gap 1 made of mortar, cement milk, rubber, hard fiber, etc.
8, 18 are filled.
【００１７】又、図１０に於ては該フラットジャッキ１
７は上下の分割部に介装され、そして、その上下面の間
隙に前記間隔材１８，１８を埋め込んである。而して、
図示例では、該柱体５はＨ鋼を用いてあるが、鋼管、Ｓ
ＲＣ構造、ＲＣ構造、ＦＲＰ材等の材料を用いることも
可能である。尚、本発明は、本発明の精神を逸脱しない
限り種々の改変を為すことができ、そして、本発明が該
改変されたものに及ぶことは当然である。FIG. 10 shows the flat jack 1
Numeral 7 is interposed in the upper and lower divisions, and the spacing members 18, 18 are embedded in the gap between the upper and lower surfaces. Thus,
In the illustrated example, the column 5 is made of H steel, but a steel pipe, S
It is also possible to use materials such as an RC structure, an RC structure, and an FRP material. The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.
【００１８】[0018]
【発明の効果】本発明は上記実施例にて詳述せる如く、
従来の多室型の箱桁橋の仕切り壁に代えて、該仕切り壁
相当部位に梁部を介して柱体を垂直に立設したから、部
材厚さを可及的に薄型に形成できることになり、依っ
て、多室型の箱桁橋の有する利点と、該箱桁橋内を自由
に往来できる１室型の箱桁橋の利点の双方の利点を兼ね
備えたものとなり、施工性も向上して極めてコストダウ
ンにも寄与する等、正に著大なる効果を奏する発明であ
る。According to the present invention, as described in detail in the above embodiment,
In place of the partition wall of the conventional multi-room box girder bridge, the column is vertically erected via a beam portion at a portion corresponding to the partition wall, so that the member thickness can be formed as thin as possible. Therefore, the advantages of a multi-room box girder bridge and the advantages of a single-chamber box girder bridge that can freely move in and out of the box girder bridge are obtained, and the workability is improved. Thus, the present invention has an extremely significant effect such as extremely contributing to cost reduction.
【図１】本発明の一実施例に係る箱桁橋の斜面図。FIG. 1 is a perspective view of a box girder bridge according to one embodiment of the present invention.
【図２】本発明の他の実施例に係る箱桁橋の正面図。FIG. 2 is a front view of a box girder bridge according to another embodiment of the present invention.
【図３】箱桁橋の上下スラブの梁部を示す正面図。FIG. 3 is a front view showing beams of upper and lower slabs of a box girder bridge.
【図４】箱桁橋の上下のスラブの梁部を示す正面図。FIG. 4 is a front view showing beams of slabs above and below a box girder bridge.
【図５】スラブに設けた球座を示す一部切欠正面図。FIG. 5 is a partially cutaway front view showing a ball seat provided on a slab.
【図６】柱体の他の実施例を示す一部切欠正面図。FIG. 6 is a partially cutaway front view showing another embodiment of the column.
【図７】柱体の更に他の実施例を示す縦断面図。FIG. 7 is a vertical sectional view showing still another embodiment of the column.
【図８】柱体の更に他の実施例を示す縦断面図。FIG. 8 is a vertical sectional view showing still another embodiment of the column.
【図９】柱体の更に他の実施例を示す一部切欠縦断面
図。FIG. 9 is a partially cutaway longitudinal sectional view showing still another embodiment of the column.
【図１０】柱体の更に他の実施例を示す一部切欠縦断面
図。FIG. 10 is a partially cutaway longitudinal sectional view showing still another embodiment of the column.
【図１１】（ａ）乃至（ｄ）は従来例の箱桁橋の正面
図、（ｅ）は本発明の箱桁橋の正面図。11 (a) to 11 (d) are front views of a conventional box girder bridge, and FIG. 11 (e) is a front view of a box girder bridge of the present invention.
【図１２】従来例の箱桁橋の正面図。FIG. 12 is a front view of a conventional box girder bridge.
【符号の説明】 １ 箱桁橋 ２ 室 ３ 仕切り壁 ５ 柱体[Description of Signs] 1 Box girder bridge 2 Room 3 Partition wall 5 Pillar
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) E01D 2/04 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) E01D 2/04
Claims (1)
柱体の立設位置であって、且つ、該上下スラブに夫々内
側に向けて凸部を対峙して形成し、又は、該位置に梁用
鉄筋を配筋して箱桁橋に連続した梁部を構成し、上下ス
ラブの該梁部間に複数の柱体を間隔をおいて垂直に立設
し、作業員が該柱体間を自由に往来できるように形成さ
れたことを特徴とする箱桁橋。1. It should be erected between the upper and lower slabs of the box girder bridge
It is the standing position of the column, and the upper and lower slabs
The convex part is formed facing the side, or the beam is
Reinforcing bars are reinforced to form a continuous beam on the box girder bridge,
A plurality of columns are vertically erected at intervals between the beams of the rub
It is formed so that the worker can freely move between the pillars.
Hakoketakyo, characterized in that it is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14395893A JP2922749B2 (en) | 1993-06-15 | 1993-06-15 | Box girder bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14395893A JP2922749B2 (en) | 1993-06-15 | 1993-06-15 | Box girder bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0718623A JPH0718623A (en) | 1995-01-20 |
| JP2922749B2 true JP2922749B2 (en) | 1999-07-26 |
Family
ID=15351012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14395893A Expired - Fee Related JP2922749B2 (en) | 1993-06-15 | 1993-06-15 | Box girder bridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2922749B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4551340B2 (en) * | 2006-02-13 | 2010-09-29 | 三井住友建設株式会社 | Continuous viaduct |
| CN103174086B (en) * | 2013-03-20 | 2015-11-11 | 中铁六局集团天津铁路建设有限公司 | Be applicable to the part steel web list case four Room combined box beam of contour section of low-pylon cable-stayed bridge |
| WO2019176106A1 (en) * | 2018-03-16 | 2019-09-19 | 三菱電機株式会社 | Drive sheave support device for elevator hoist, and elevator hoist maintenance method |
-
1993
- 1993-06-15 JP JP14395893A patent/JP2922749B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0718623A (en) | 1995-01-20 |
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