JP2015113576A - Vehicle and method for replacing bridge girder - Google Patents
Vehicle and method for replacing bridge girder Download PDFInfo
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Abstract
PROBLEM TO BE SOLVED: To provide a vehicle capable of replacing a bridge girder for bridges of urban expressways and others where use of the spaces above and below the road are significantly limited, allowing replacement safely and with a small work yard, while limiting the spaces used above and below the road.SOLUTION: A bridge girder replacement vehicle 1 comprises a pair of vehicle sections 2A and 2B spaced greater than the longitudinal dimension of an existing girder M1 to be replaced, and a suspension section 3 that connects the pair of vehicle sections 2A and 2B. The suspension section 3 has a crane device 60 for hoisting the existing girder M1. Each of the vehicle sections 2A and 2B comprises a vehicle body 10 mounted with a power source 14, a plurality of traveling devices 20 for traveling on the bridge girder, a sending-out jack 30 for sending out, in the longitudinal direction, a temporary bridge girder 4 that is longer than the longitudinal dimension of the existing girder M1, and a crawler 40 that travels on the temporary girder 4.
Description
本発明は、橋梁に対して橋桁の老朽化した既設桁を撤去して新設桁を架設する（所謂「架け替え」をする）橋桁架替車両及び橋桁架替方法に関し、特に、都市高速道路等のような上下空間に大きな制約がある橋梁に対して、既設桁の架け替えを行うことができる橋桁架替車両及び橋桁架替方法に関する。
The present invention relates to a bridge girder replacement vehicle and a bridge girder replacement method in which an existing girder of a bridge girder is removed from a bridge and a new girder is installed (so-called “replacement”), and in particular, an urban expressway and the like The present invention relates to a bridge girder replacement vehicle and a bridge girder replacement method capable of replacing an existing girder with respect to a bridge having a large restriction in the vertical space.
道路橋や鉄道橋等の橋梁において、古くなった既設桁から新しい新設桁に架け替えることが行われている。従来、このような橋桁架替方法として、例えば、トラッククレーン及びベントを使用する方法（以下、「トラッククレーンベント工法」と呼ぶ）又は大型自走式キャリヤを使用する方法がある。
In bridges such as road bridges and railway bridges, replacement of old girders with new girders has been carried out. Conventionally, such bridge girder replacement methods include, for example, a method using a truck crane and a vent (hereinafter referred to as “truck crane vent method”) or a method using a large self-propelled carrier.
トラッククレーンベント工法は、最も一般的な工法であり、例えば下記特許文献１のように多くの文献に記載されている。トラッククレーンベント工法では、図１４に示すように、先ず橋梁ＫＳの下方にベントＢ１を組み立てて、トラッククレーンＴＣによって既設桁Ｊ１を吊り上げて撤去する。次に、トラック等で運ばれてきた新設桁Ｐ１をトラッククレーンＴＣで吊り上げて、新設桁Ｐ１を架替空間ＫＫに架設する。そして、新設桁Ｐ１を隣接する橋桁Ｉ１，Ｉ２と結合した後に、ベントＢ１を解体するようになっている。
The truck crane vent method is the most common method, and is described in many documents such as Patent Document 1 below. In the truck crane vent method, as shown in FIG. 14, the vent B1 is first assembled below the bridge KS, and the existing girder J1 is lifted and removed by the truck crane TC. Next, the new girder P1 carried by the truck or the like is lifted by the truck crane TC, and the new girder P1 is erected in the replacement space KK. Then, after the newly installed girder P1 is coupled to the adjacent bridge girders I1 and I2, the vent B1 is disassembled.
大型自走式キャリヤＯＣを使用する方法は、本出願人が提案している方法であり、例えば図１５に示すように、橋梁ＫＴの下方に大型自走式キャリヤＯＣとユニットジャッキＵＪとが配置される。具体的には、ユニットジャッキＵＪで既設桁Ｊ２を支えながら大きな既設桁Ｊ２を一括して大型自走式キャリヤＯＣで搬送する。撤去された大きな既設桁Ｊ２は作業ヤードで解体される。また、作業ヤードでは大きな新設桁Ｐ２を組立てる。そして、ユニットジャッキＵＪで新設桁Ｐ２を支えながら大きな新設桁Ｐ２を一括して大型自走式キャリヤＯＣで搬送し、ユニットジャッキＵＪを下降させて新設桁Ｐ２を架替空間ＫＫに架設するようになっている。
The method using the large self-propelled carrier OC is a method proposed by the present applicant. For example, as shown in FIG. 15, the large self-propelled carrier OC and the unit jack UJ are arranged below the bridge KT. Is done. Specifically, the large existing girder J2 is collectively transported by the large self-propelled carrier OC while the unit jack UJ supports the existing girder J2. The removed large existing girder J2 is demolished in the work yard. A large new girder P2 is assembled in the work yard. Then, while supporting the new girder P2 with the unit jack UJ, the large new girder P2 is collectively transported by the large self-propelled carrier OC, and the unit jack UJ is lowered to install the new girder P2 in the replacement space KK. It has become.
しかしながら、橋梁のうち都市高速道路等においては、道路が立体的に設けられていて、上下空間に大きな制約がある。このため、上述した従来の架替方法では、以下の問題点がある。先ず、トラッククレーンベント工法では、橋梁ＫＳの下方にトラッククレーンＴＣを配置して、既設桁Ｊ１及び新設桁Ｐ１の吊り上げと吊り降ろしを行うため、橋梁ＫＳの上下に広い空間が必要である。更に、ベントＢ１の組立及び解体が行われるため、安全面での配慮も必要である。加えて、橋梁ＫＳの下方が供用道路である場合には、トラッククレーンＴＣの配置によって、交通規制の影響が大きい。従って、都市高速道路等に対してトラッククレーンベント工法では、安全に且つ使用する上下空間を抑えて架け替えを行うことが困難である。
However, urban highways, etc., among the bridges are provided with three-dimensional roads, and there are significant restrictions on the vertical space. For this reason, the conventional replacement method described above has the following problems. First, in the truck crane vent method, the truck crane TC is arranged below the bridge KS, and the existing girder J1 and the new girder P1 are lifted and lowered, so that a wide space is required above and below the bridge KS. Furthermore, since the vent B1 is assembled and disassembled, safety considerations are also necessary. In addition, when the lower side of the bridge KS is a service road, the traffic regulation is greatly affected by the arrangement of the truck crane TC. Therefore, it is difficult for the truck crane vent method to be used for an urban highway or the like while safely and restraining the vertical space to be used.
一方、大型自走式キャリヤを使用する方法では、大きな既設桁Ｊ２を作業ヤードで解体すると共に、大きな新設桁Ｐ２を作業ヤードで組立てるため、非常に広い作業ヤードを確保しなければならない。更に、橋梁ＫＴの下方に大型自走式キャリヤＯＣを進入させる空間が必要になるため、架け替えを行うことができる橋梁が制限される。加えて、橋梁ＫＴの下方が供用道路である場合には、大型自走式キャリヤＯＣの配置によって、交通規制の影響が大きい。従って、都市高速道路等に対して大型自走式キャリヤを使用する方法では、狭い作業ヤードで且つ使用する上下空間を抑えて架け替えを行うことが困難である。
On the other hand, in the method using the large self-propelled carrier, the large existing girder J2 is disassembled in the work yard and the large new girder P2 is assembled in the work yard, so that a very wide work yard must be secured. Furthermore, since a space for allowing the large self-propelled carrier OC to enter is required below the bridge KT, bridges that can be replaced are limited. In addition, when the lower side of the bridge KT is a service road, the influence of traffic regulation is large due to the arrangement of the large self-propelled carrier OC. Therefore, in the method of using a large self-propelled carrier on an urban highway or the like, it is difficult to perform replacement with a narrow work yard and a reduced vertical space to be used.
そこで、本発明は上記した問題点を解決するためになされたものであり、都市高速道路等のような上下空間に大きな制約がある橋梁に対して、使用する上下空間を抑えつつ、安全に且つ狭い作業ヤードで架け替えを行うことができる橋桁架替車両及び橋桁架替方法を提供することを目的とする。
Therefore, the present invention has been made to solve the above-described problems, and it is possible to safely and while suppressing the vertical space to be used for a bridge having a large vertical space restriction such as an urban expressway. It is an object of the present invention to provide a bridge girder replacement vehicle and a bridge girder replacement method that can be replaced in a narrow work yard.
本発明に係る橋桁架替車両は、架け替え対象の既設桁の長手方向寸法より長く離間して配置された一対の車両部と、これら一対の車両部を連結する懸架部とを備える橋桁架替車両であって、前記懸架部は、前記既設桁を吊り上げるクレーン装置を備え、前記各車両部は、動力源を搭載する車体と、橋梁上を走行するための複数の走行装置と、前記既設桁の長手方向寸法より長い仮橋桁を長手方向に送り出す送り出し装置と、前記仮橋桁の上を走行する直線移動装置と、を備えることを特徴とする。
A bridge girder replacement vehicle according to the present invention includes a pair of vehicle parts arranged longer than the longitudinal dimension of an existing girder to be replaced, and a suspension part connecting the pair of vehicle parts. The suspension unit includes a crane device that lifts the existing girder, and each of the vehicle units includes a vehicle body on which a power source is mounted, a plurality of traveling devices for traveling on a bridge, and the existing girder. And a linear movement device that travels over the temporary bridge girder.
本発明に係る橋桁架替方法は、上記した橋桁架替車両を走行させてその各車両部を既設桁の長手方向寸法より長く離間している状態で配置する車両配置工程と、前記クレーン装置によって前記既設桁を吊り上げる既設桁吊り上げ工程と、前記送り出し装置によって前記既設桁が吊り上げられた架替空間に仮橋桁を送り出して架け渡す送り出し工程と、前記直線移動装置によって前記架け渡された仮橋桁の上を直線移動して前記架替空間を渡る直線移動工程と、前記走行装置によって橋梁に隣接する作業ヤードまで走行し、前記クレーン装置によって前記既設桁を作業ヤードで吊り降ろす既設桁吊り降ろし工程と、前記クレーン装置によって作業ヤードで新設桁を吊り上げる新設桁吊り上げ工程と、前記走行装置によって前記仮橋桁の一端部まで走行し、前記直線移動装置によって前記仮橋桁の上を直線移動して前記架替空間の上側に前記新設桁を配置する新設桁配置工程と、前記送り出し装置によって前記仮橋桁を送り出して前記架替空間から撤去する仮橋桁撤去工程と、前記クレーン装置によって前記新設桁を吊り降ろして前記架替空間に設置する新設桁設置工程とを備えることを特徴とする。
The bridge girder replacement method according to the present invention includes a vehicle arrangement step in which the above-described bridge girder replacement vehicle travels and each vehicle part is arranged in a state of being separated longer than the longitudinal dimension of the existing girder, and the crane device. An existing girder lifting step for lifting the existing girder, a feeding step for sending and suspending a temporary bridge girder to a replacement space in which the existing girder is lifted by the feeding device, and a temporary bridge girder that is suspended by the linear moving device. A linear movement process that moves linearly over the replacement space, and an existing girder suspension process that travels to a work yard adjacent to a bridge by the traveling device and suspends the existing girder in the work yard by the crane device; A new girder lifting process in which a new girder is lifted in a work yard by the crane device, and one end of the temporary bridge girder by the traveling device. A new girder arrangement step of traveling, linearly moving on the temporary bridge girder by the linear movement device and arranging the new girder above the replacement space, and sending the temporary bridge girder by the sending device It comprises a temporary bridge girder removal step for removing from the space, and a new girder installation step for hanging the new girder by the crane device and installing it in the replacement space.
本発明に係る橋桁架替車両及び橋桁架替方法によれば、既設桁を撤去する際、先ず、各車両部を既設桁の長手方向寸法より長く離間している状態で配置する。次に、クレーン装置によって既設桁を吊り上げる。続いて、送り出し装置によって既設桁が吊り上げられた架替空間に仮橋桁を送り出して架け渡す。そして、直線移動装置によって架け渡された仮橋桁の上を直線移動して架替空間を渡る。その後、走行装置によって作業ヤードまで走行し、クレーン装置によって既設桁を作業ヤードで吊り降ろす。こうして、橋桁架替車両は橋梁上を自走するだけであり、作業ヤード以外で橋梁の上下空間を使用せずに既設桁を撤去することができる。
According to the bridge girder replacement vehicle and the bridge girder replacement method according to the present invention, when removing the existing girder, first, each vehicle part is arranged in a state of being separated longer than the longitudinal dimension of the existing girder. Next, the existing girder is lifted by the crane device. Subsequently, the temporary bridge girder is sent out to the replacement space where the existing girder is lifted by the sending device. Then, the vehicle moves linearly on the temporary bridge girder spanned by the linear moving device and crosses the replacement space. Thereafter, the vehicle travels to the work yard by the traveling device, and the existing girder is hung from the work yard by the crane device. Thus, the bridge girder replacement vehicle only runs on the bridge, and the existing girder can be removed without using the space above and below the bridge outside the work yard.
そして、新設桁を架設する際、先ず、クレーン装置によって作業ヤードで新設桁を吊り上げる。次に、走行装置によって仮橋桁の一端部まで走行し、直線移動装置によって仮橋桁の上を直線移動して架替空間の上側に新設桁を配置する。続いて、送り出し装置によって仮橋桁を送り出して架替空間から撤去する。その後、クレーン装置によって新設桁を吊り降ろして架替空間に設置する。こうして、橋桁架替車両は橋梁上を自走するだけであり、作業ヤード以外で橋梁の上下空間を使用せずに新設桁を設置することができる。
And when installing a new girder, first, a new girder is lifted in a work yard by a crane apparatus. Next, it travels to one end part of the temporary bridge girder by the traveling device, and linearly moves on the temporary bridge girder by the linear movement device, and arranges the newly installed girder above the replacement space. Subsequently, the temporary bridge girder is sent out by the sending device and removed from the replacement space. After that, the new girder is suspended by a crane device and installed in the replacement space. Thus, the bridge girder replacement vehicle only runs on the bridge, and a new girder can be installed without using the space above and below the bridge outside the work yard.
以上により、橋梁の下方にトラッククレーンや大型自走式キャリヤを配置する必要がなくて、橋桁架替車両が橋梁上を自走することで架け替えを行うことができる。従って、交通規制の範囲が狭く、従来の橋梁の下方で行っていた交通規制の影響を減らすことができる。また、橋梁の下方でベントの組立及び解体を行う必要がなくて、安全である。更に、大型自走式キャリヤを使用する方法のように、既設桁の解体及び新設桁の組立を行うための広い作業ヤードが必要なくて、比較的狭い作業ヤードで良い。この結果、使用する上下空間を抑えつつ、安全に且つ狭い作業ヤードで架け替えを行うことができる。
As described above, it is not necessary to arrange a truck crane or a large self-propelled carrier below the bridge, and the bridge girder replacement vehicle can be replaced by self-propelling on the bridge. Therefore, the scope of traffic regulation is narrow, and the influence of traffic regulation performed under the conventional bridge can be reduced. Also, it is safe because there is no need to assemble and disassemble the vent below the bridge. Further, unlike a method using a large self-propelled carrier, a wide work yard for disassembling an existing girder and assembling a new girder is not necessary, and a relatively narrow work yard may be used. As a result, it is possible to perform the replacement safely and in a narrow work yard while suppressing the vertical space to be used.
また、本発明に係る橋桁架替方法は、上記した橋桁架替車両を第１橋桁架替車両と第２橋桁架替車両として２台用意し、前記第１橋桁架替車両を走行させてその各車両部を既設桁の長手方向寸法より長く離間している状態で配置する車両配置工程と、前記第１橋桁架替車両のクレーン装置によって前記既設桁を吊り上げる既設桁吊り上げ工程と、前記第１橋桁架替車両の送り出し装置によって前記既設桁が吊り上げられた架替空間に仮橋桁を送り出して架け渡す送り出し工程と、前記第１橋桁架替車両の直線移動装置によって前記架け渡された仮橋桁の上を直線移動して前記架替空間を渡る直線移動工程と、前記第１橋桁架替車両の走行装置によって橋梁に隣接する第１作業ヤードまで走行し、そのクレーン装置によって前記既設桁を第１作業ヤードで吊り降ろす既設桁吊り降ろし工程と、前記第２橋桁架替車両のクレーン装置によって橋梁に隣接する第２作業ヤードで新設桁を吊り上げる新設桁吊り上げ工程と、前記第２橋桁架替車両の走行装置によって前記仮橋桁の一端部まで走行し、その直線移動装置によって前記仮橋桁の上を直線移動して前記架替空間の上側に前記新設桁を配置する新設桁配置工程と、前記第２橋桁架替車両の送り出し装置によって前記仮橋桁を送り出して前記架替空間から撤去する仮橋桁撤去工程と、前記第２橋桁架替車両のクレーン装置によって前記新設桁を吊り降ろして前記架替空間に設置する新設桁設置工程とを備えることを特徴とする。
In the bridge girder replacement method according to the present invention, two bridge girder replacement vehicles described above are prepared as a first bridge girder replacement vehicle and a second bridge girder replacement vehicle, and the first bridge girder replacement vehicle is run to A vehicle arrangement step of arranging each vehicle portion in a state of being separated from the longitudinal dimension of the existing girder by a distance; an existing girder lifting step of lifting the existing girder by a crane device of the first bridge girder replacement vehicle; A feeding step of sending and suspending the temporary bridge girder to the replacement space in which the existing girder is lifted by the feeding device of the bridge girder replacement vehicle; and the temporary bridge girder of the temporary bridge girder that has been transferred by the linear movement device of the first bridge girder replacement vehicle The vehicle travels linearly over the relocation space and travels to the first work yard adjacent to the bridge by the travel device of the first bridge girder replacement vehicle, and the crane device moves the existing girder first. Product An existing girder hanging process for hanging at the yard, a new girder lifting process for lifting the new girder at the second work yard adjacent to the bridge by the crane device of the second bridge girder replacement vehicle, and travel of the second bridge girder replacement vehicle A new girder arrangement step of traveling to one end of the temporary bridge girder by a device, linearly moving on the temporary bridge girder by the linear movement device, and arranging the new girder above the replacement space; and the second bridge A temporary bridge girder removal process in which the temporary bridge girder is sent out by the girder replacement vehicle delivery device and removed from the replacement space, and the new girder is suspended by the crane device of the second bridge girder replacement vehicle and installed in the replacement space. And a new girder installation process.
上記した本発明に係る橋桁架替方法によれば、使用する上下空間を抑えつつ、安全に且つ狭い作業ヤードで架け替えを行うことができるという作用効果に加えて、２台の橋桁架替車両と２つの作業ヤードを利用することで、既設桁の撤去と新設桁の架設とをほとんど同時に行うことができる。従って、施工期間を短縮することができる。
According to the above-described bridge girder replacement method according to the present invention, two bridge girder replacement vehicles can be used in addition to the effect of being able to perform replacement safely and in a narrow work yard while suppressing the vertical space to be used. By using the two work yards, the existing girder can be removed and the new girder can be installed almost simultaneously. Therefore, the construction period can be shortened.
また、本発明に係る橋桁架替車両において、各走行装置は、複数の車輪を支持するアクスルと、前記アクスルを旋回可能に前記車体に取付けるアーム部材とを有し、前記車体に対して独立して操舵可能であると良い。
この場合には、各車輪を独立して操舵できるため、旋回だけでなく斜行や横行のような複雑な走行を行うことができる。このため、橋梁に隣接する非常に狭い作業ヤードであっても確実に移動することができる。つまり、設置する作業ヤードを狭くすることができる。 In the bridge girder replacement vehicle according to the present invention, each traveling device includes an axle that supports a plurality of wheels, and an arm member that is attached to the vehicle body so as to be able to turn the axle, and is independent of the vehicle body. It should be possible to steer.
In this case, since each wheel can be steered independently, it is possible not only to turn but also to perform complicated traveling such as skewing and traversing. For this reason, even if it is a very narrow work yard adjacent to a bridge, it can move reliably. That is, the work yard to be installed can be narrowed.
この場合には、各車輪を独立して操舵できるため、旋回だけでなく斜行や横行のような複雑な走行を行うことができる。このため、橋梁に隣接する非常に狭い作業ヤードであっても確実に移動することができる。つまり、設置する作業ヤードを狭くすることができる。 In the bridge girder replacement vehicle according to the present invention, each traveling device includes an axle that supports a plurality of wheels, and an arm member that is attached to the vehicle body so as to be able to turn the axle, and is independent of the vehicle body. It should be possible to steer.
In this case, since each wheel can be steered independently, it is possible not only to turn but also to perform complicated traveling such as skewing and traversing. For this reason, even if it is a very narrow work yard adjacent to a bridge, it can move reliably. That is, the work yard to be installed can be narrowed.
本発明の橋桁架替車両及び橋桁架替方法によれば、都市高速道路等のような上下空間に大きな制約がある橋梁に対して、使用する上下空間を抑えつつ、安全に且つ狭い作業ヤードで架け替えを行うことができる。
According to the bridge girder replacement vehicle and the bridge girder replacement method of the present invention, it is possible to safely and narrowly work in a narrow work yard while suppressing the vertical space to be used for a bridge having a large vertical space restriction such as an urban expressway. Can be replaced.
本発明に係る橋桁架替車両及び橋桁架替方法の実施形態について、図面を参照しながら説明する。図１は、本実施形態の橋桁架替車両１を模式的に示した斜視図である。橋桁架替車両１は、老朽化した既設桁を撤去して新設桁を架設する（所謂「架け替え」を行う）特殊車両であり、図１に示すように、長手方向の両端にユニット化された一対の車両部２Ａ，２Ｂを備え、各車両部２Ａ，２Ｂの上側を連結する懸架部３を備えている。車両部２Ａの構成と車両部２Ｂの構成は同様であるため、以下では車両部２Ａの構成を代表して説明する。
DESCRIPTION OF EMBODIMENTS Embodiments of a bridge girder replacement vehicle and a bridge girder replacement method according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view schematically showing a bridge girder replacement vehicle 1 of the present embodiment. The bridge girder replacement vehicle 1 is a special vehicle in which an old girder is removed and a new girder is installed (so-called “replacement” is performed), and as shown in FIG. 1, it is unitized at both ends in the longitudinal direction. Provided with a pair of vehicle parts 2A, 2B, and a suspension part 3 for connecting the upper sides of the vehicle parts 2A, 2B. Since the configuration of the vehicle unit 2A and the configuration of the vehicle unit 2B are the same, the configuration of the vehicle unit 2A will be described below as a representative.
図２は、図１の車両部２Ａを示した側面図である。また、図３は、図２のＸ−Ｘ線に沿った断面図である。図２及び図３に示すように、車両部２Ａは、車体１０と、走行装置２０と、送り出しジャッキ３０と、クローラ４０とを備えている。また、懸架部３は、屋根枠５０と、クレーン装置６０とを備えている。
FIG. 2 is a side view showing the vehicle portion 2A of FIG. FIG. 3 is a cross-sectional view taken along line XX in FIG. As shown in FIGS. 2 and 3, the vehicle portion 2 </ b> A includes a vehicle body 10, a traveling device 20, a delivery jack 30, and a crawler 40. The suspension unit 3 includes a roof frame 50 and a crane device 60.
車体１０は、主に、台枠１１と受台１２と運転席１３と動力源１４とを有して構成されている。台枠１１の下側に、走行装置２０が設けられていて、台枠１１の上側に、動力源１４が搭載されている。受台１２は、懸架部３を支持するものであり、台枠１１の上側で動力源１４を囲んでいる。運転席１３には、アクセルペダル、ブレーキペダル、操舵ハンドルの他、作業員が各装置を操作するためのレバー及びボタン等が設けられている。動力源１４は、走行装置２０を駆動させるモータの発電機、送り出しジャッキ３０及びクレーン装置６０を駆動させるための油圧ユニット、クローラ４０と走行装置２０とクレーン装置６０を駆動させるためのディーゼルエンジン等である。なお、動力源１４の構成は、上記したものに限定されるものではなく適宜変更可能である。
The vehicle body 10 mainly includes a frame 11, a cradle 12, a driver's seat 13, and a power source 14. A traveling device 20 is provided below the underframe 11, and a power source 14 is mounted above the underframe 11. The cradle 12 supports the suspension portion 3 and surrounds the power source 14 on the upper side of the frame 11. The driver's seat 13 is provided with an accelerator pedal, a brake pedal, a steering handle, levers and buttons for an operator to operate each device, and the like. The power source 14 is a motor generator for driving the traveling device 20, a hydraulic unit for driving the delivery jack 30 and the crane device 60, a diesel engine for driving the crawler 40, the traveling device 20, and the crane device 60. is there. The configuration of the power source 14 is not limited to that described above, and can be changed as appropriate.
走行装置２０は、複数の車輪２１と、一対の車輪２１を回転可能に支持するアクスル２２と、このアクスル２２を覆うアクスルケース２２ａと、アクスルケース２２ａに連結されているアーム部材２３と、アーム部材２３の上端部に連結されている回転プレート２４とを有している。こうして、アーム部材２３は、アクスル２２を旋回可能に車体１０に取付けている。この走行装置２０では、双輪である車輪２１が車幅方向の両端に設けられていて、車両長手方向に４つ並んでいる。各アクスル２２は、図示しない走行用モータに接続されていて、走行用モータの回転によって、車輪２１と共に回転する。つまり、走行用モータが回転すると、車輪２１及びアクスル２２が回転して、橋桁架替車両１が橋梁上を走行できる。
The traveling device 20 includes a plurality of wheels 21, an axle 22 that rotatably supports the pair of wheels 21, an axle case 22a that covers the axle 22, an arm member 23 that is coupled to the axle case 22a, and an arm member. And a rotating plate 24 connected to the upper end portion of 23. Thus, the arm member 23 is attached to the vehicle body 10 so that the axle 22 can turn. In this traveling device 20, twin wheels 21 are provided at both ends in the vehicle width direction, and four wheels 21 are arranged in the vehicle longitudinal direction. Each axle 22 is connected to a travel motor (not shown), and rotates together with the wheels 21 by the rotation of the travel motor. That is, when the traveling motor rotates, the wheel 21 and the axle 22 rotate, and the bridge girder replacement vehicle 1 can travel on the bridge.
各アーム部材２３は、各車輪２１と車体１０との間で上下方向に延びていて、回転プレート２４の回転に伴って、車輪２１を操舵させることができる。なお、各アーム部材２３は、図２及び図３では模式的に１部材で示されているが、スイングアームとサスペンションブラケットとで構成されている。各回転プレート２４は、車体１０に対してベアリングを介して回転可能に取付けられている。また、各回転プレート２４は、図示しない操舵用モータにそれぞれ接続されていて、各操舵用モータの回転によって、垂直方向の軸周りに回転することができる。こうして、各操舵用モータが回転すると、回転プレート２４及びアーム部材２３が垂直方向の軸周りに回転して、各車輪２１が操舵される。つまり、操舵用モータは対応する車輪のみ操舵可能になっていて、各車輪２１はそれぞれ独立して操舵可能になっている。これにより、橋桁架替車両１は、旋回だけでなく斜行や横行のような複雑な走行を行うことができる。
Each arm member 23 extends in the vertical direction between each wheel 21 and the vehicle body 10, and the wheel 21 can be steered as the rotating plate 24 rotates. Each arm member 23 is schematically shown as one member in FIGS. 2 and 3, but is composed of a swing arm and a suspension bracket. Each rotating plate 24 is rotatably attached to the vehicle body 10 via a bearing. Each rotating plate 24 is connected to a steering motor (not shown), and can be rotated around a vertical axis by the rotation of each steering motor. Thus, when each steering motor rotates, the rotating plate 24 and the arm member 23 rotate around the vertical axis, and each wheel 21 is steered. That is, the steering motor can steer only the corresponding wheel, and each wheel 21 can be steered independently. Thereby, the bridge girder replacement vehicle 1 can perform not only turning but also complicated traveling such as slanting or traversing.
送り出しジャッキ３０は、仮橋桁４（図４参照）を車両長手方向に送り出すものである。ここで、仮橋桁４は、後述するように、架替空間ＫＫに一時的に架け渡される桁部材であり（図６〜図１１参照）、既設桁Ｍ１の長手方向寸法より長く、既設桁Ｍ１の幅方向寸法より短いものである。この仮橋桁４は、図３に示すように、断面がコ字状のチャンネル部４ａと、平板状である底板部４ｂとを有している。なお、仮橋桁４の形状は適宜変更可能であり、断面がＨ形状又はハット形状である桁部材であっても良い。
The delivery jack 30 delivers the temporary bridge girder 4 (see FIG. 4) in the longitudinal direction of the vehicle. Here, as will be described later, the temporary bridge girder 4 is a girder member temporarily bridged over the replacement space KK (see FIGS. 6 to 11), and is longer than the longitudinal dimension of the existing girder M1, and is larger than the existing girder M1. It is shorter than the dimension in the width direction. As shown in FIG. 3, the temporary bridge girder 4 includes a channel portion 4 a having a U-shaped cross section and a bottom plate portion 4 b having a flat plate shape. The shape of the temporary bridge girder 4 can be changed as appropriate, and may be a girder member whose cross section is H-shaped or hat-shaped.
送り出しジャッキ３０は、台枠１１の車両長手方向の両端の下側にそれぞれ取付けられていて、車幅方向の中央部に配置されている。各送り出しジャッキ３０は、油圧シリンダ等を有する周知の構成であり、仮橋桁４を把持しつつ車両長手方向に少しずつ送り出すことができる。これら各送り出しジャッキ３０が、本発明の「送り出し装置」に相当するが、「送り出し装置」の構成は適宜変更可能であり、例えばローラが回転しながら仮橋桁４を送り出す回転ローラ機構であっても良い。
The delivery jacks 30 are respectively attached to the lower sides of both ends of the underframe 11 in the vehicle longitudinal direction, and are arranged at the center in the vehicle width direction. Each delivery jack 30 has a well-known configuration having a hydraulic cylinder or the like, and can feed little by little in the longitudinal direction of the vehicle while holding the temporary bridge girder 4. Each of these feeding jacks 30 corresponds to the “feeding device” of the present invention, but the configuration of the “feeding device” can be changed as appropriate. For example, even if the rotating roller mechanism feeds the temporary bridge girder 4 while the rollers rotate. good.
クローラ４０は、図２及び図３に示すように、仮橋桁４のチャンネル部４ａの上面を直線移動するものである。このクローラ４０は、台枠１１の車両長手方向の中央部の下側に取付けられていて、車幅方向の中央部に配置されている。クローラ４０は、ベルト状のシューと駆動輪と転動輪等を有する周知の構成であり、ディーゼルエンジンの駆動によって駆動輪が回転することで、少しずつ前進又は後進することができる。このクローラ４０が、本発明の「直線移動装置」に相当するが、「直線移動装置」の構成は適宜変更可能であり、例えば仮橋桁４のチャンネル部４ａを把持しながらスライドする機構であっても良い。
As shown in FIGS. 2 and 3, the crawler 40 linearly moves on the upper surface of the channel portion 4 a of the temporary bridge girder 4. The crawler 40 is attached to the lower side of the center portion of the underframe 11 in the vehicle longitudinal direction, and is disposed at the center portion in the vehicle width direction. The crawler 40 has a well-known configuration including a belt-like shoe, a driving wheel, a rolling wheel, and the like, and can move forward or backward little by little as the driving wheel rotates by driving a diesel engine. The crawler 40 corresponds to the “linear movement device” of the present invention, but the configuration of the “linear movement device” can be changed as appropriate. For example, the crawler 40 is a mechanism that slides while gripping the channel portion 4 a of the temporary bridge girder 4. Also good.
屋根枠５０は、図１に示すように、車両長手方向に延びていて、屋根枠５０の一端部が一方の車両部２Ａの受台１２に支持され、屋根枠５０の他端部が他方の車両部２Ｂの受台１２に支持されている。これにより、一方の車両部２Ａと他方の車両部２Ｂとは、後述する既設桁Ｍ１の長手方向寸法より長く離間している（図５参照）。そして、屋根枠５０の長手方向の中央部には、二つのクレーン装置６０が搭載されている。
As shown in FIG. 1, the roof frame 50 extends in the longitudinal direction of the vehicle, one end of the roof frame 50 is supported by the cradle 12 of one vehicle portion 2A, and the other end of the roof frame 50 is the other. It is supported by the cradle 12 of the vehicle part 2B. Thereby, one vehicle part 2A and the other vehicle part 2B are separated longer than the longitudinal dimension of the existing girder M1 described later (see FIG. 5). Two crane devices 60 are mounted on the central portion of the roof frame 50 in the longitudinal direction.
各クレーン装置６０は、既設桁を吊り上げる又は吊り降ろすものであり、屋根枠５０で支持されたクレーン本体６１と、このクレーン本体６１の車幅方向の両端に設けられた各ウインチ６２と、各ウインチ６２に巻回されている各ワイヤ６３と、これらワイヤ６３の先端に取付けられている各フック６４とを有している。合計４個のフック６４は、既設桁に設けられる吊り金具（図示省略）を吊り下げる。
Each crane device 60 lifts or lowers an existing girder, and includes a crane body 61 supported by a roof frame 50, winches 62 provided at both ends of the crane body 61 in the vehicle width direction, and winches. Each wire 63 is wound around 62 and each hook 64 is attached to the tip of these wires 63. A total of four hooks 64 suspend hanging brackets (not shown) provided on existing girders.
これらクレーン装置６０では、各ウインチ６２を正回転させると、各ワイヤ６３がウインチ６２に巻き取られて、各フック６４に吊り下げた既設桁を吊り上げることができる。一方、各ウインチ６２を逆回転させると、各ワイヤ６３がウインチ６２に巻き出されて、各フック６４に吊り下げた既設桁を吊り降ろすことができる。なお、クレーン装置６０は、上記した構成に限定されるものではなく、適宜変更可能であり、例えば伸縮ブームを有する構成であっても良い。
In these crane devices 60, when each winch 62 is rotated forward, each wire 63 is wound around the winch 62, and an existing girder suspended from each hook 64 can be lifted. On the other hand, when each winch 62 is rotated in the reverse direction, each wire 63 is wound around the winch 62 and the existing girders suspended from the respective hooks 64 can be suspended. In addition, the crane apparatus 60 is not limited to an above-described structure, It can change suitably, For example, the structure which has an expansion-contraction boom may be sufficient.
ところで、従来の橋桁架替方法では、発明が解決する課題で説明したように、使用する上下空間を抑えつつ、安全に且つ狭い作業ヤードで架け替えを行うことができないという問題点があった。そこで、本実施形態の橋桁架替方法では、上記した問題点を解決すべく、上述した橋桁架替車両１を用いて架け替えを行うようになっている。以下、本実施形態の橋桁架替方法について説明する。図４に示すように、架け替えを行う対象である橋梁ＫＲでは、橋脚間の上側に橋桁Ｈ１，Ｈ２，Ｈ３，Ｈ４，Ｈ５，Ｈ６，Ｈ７，Ｈ８，Ｈ９が架設されている。本実施形態では、橋桁Ｈ５を新しい橋桁に架け替える場合について説明する。以下では、「橋桁Ｈ５」を「既設桁Ｍ１」と呼ぶことにする。
By the way, in the conventional bridge girder replacement method, as described in the problem to be solved by the invention, there is a problem that it is not possible to perform replacement safely and in a narrow work yard while suppressing the vertical space to be used. Therefore, in the bridge girder replacement method of the present embodiment, replacement is performed using the bridge girder replacement vehicle 1 described above in order to solve the above-described problems. Hereinafter, the bridge girder replacement method of this embodiment will be described. As shown in FIG. 4, in the bridge KR that is to be replaced, bridge girders H1, H2, H3, H4, H5, H6, H7, H8, and H9 are installed above the piers. In the present embodiment, a case where the bridge girder H5 is replaced with a new bridge girder will be described. Hereinafter, “bridge girder H5” will be referred to as “existing girder M1”.
また、本実施形態の橋桁架替方法では、上述した橋桁架替車両１が２台用意されている。このため、これら橋桁架替車両１を「第１橋桁架替車両１Ａ」と「第２橋桁架替車両１Ｂ」と呼ぶことにする。そして、この橋梁ＫＲでは、橋桁Ｈ６と橋桁Ｈ８の橋幅方向に隣接して第１作業ヤードＳ１が設けられていて、橋桁Ｈ２と橋桁Ｈ４の橋幅方向に隣接して第２作業ヤードＳ２が設けられている。第１作業ヤードＳ１及び第２作業ヤードＳ２は、第１橋桁架替車両１Ａ及び第２橋桁架替車両１Ｂがそれぞれ既設桁の吊り上げ又は吊り降ろしを行うための作業構台であり、交通規制の範囲を狭くするために、できるだけ狭く構成されている。
In the bridge girder replacement method of the present embodiment, two bridge girder replacement vehicles 1 described above are prepared. For this reason, these bridge girder replacement vehicles 1 will be referred to as “first bridge girder replacement vehicle 1A” and “second bridge girder replacement vehicle 1B”. In this bridge KR, the first work yard S1 is provided adjacent to the bridge width direction of the bridge beam H6 and the bridge beam H8, and the second work yard S2 is adjacent to the bridge beam direction of the bridge beam H2 and the bridge beam H4. Is provided. The first work yard S1 and the second work yard S2 are work gantry for the first bridge girder replacement vehicle 1A and the second bridge girder replacement vehicle 1B to lift or suspend the existing girder, respectively, and the scope of traffic regulation. Is made as narrow as possible.
先ず、図４に示すように、第１橋桁架替車両１Ａが第１作業ヤードＳ１で待機し、第２橋桁架替車両１Ｂが第２作業ヤードＳ２で待機する。このとき、仮橋桁４が、既設桁Ｍ１の隣側である橋桁Ｈ４，Ｈ３，Ｈ２の上にトラック等によって運ばれている。次に、第１橋桁架替車両１Ａは、走行装置２０によって橋桁Ｈ６，Ｈ７，Ｈ８に向かって横行した後、図５に示すように、各車両部２Ａ，２Ｂで既設桁Ｍ１を跨ぐまで橋梁ＫＲ上を走行する。つまり、各車両部２Ａ，２Ｂを既設桁Ｍ１の長手方向寸法より長く離間している状態で配置して（車両配置工程）、各クレーン装置６０によって既設桁Ｍ１を吊り上げる（既設桁吊り上げ工程）。
First, as shown in FIG. 4, the first bridge girder replacement vehicle 1A waits in the first work yard S1, and the second bridge girder replacement vehicle 1B waits in the second work yard S2. At this time, the temporary bridge girder 4 is carried on a bridge girder H4, H3, H2 adjacent to the existing girder M1 by a truck or the like. Next, the first bridge girder replacement vehicle 1A traverses toward the bridge girders H6, H7, and H8 by the traveling device 20, and then bridges the existing girder M1 across the vehicle parts 2A and 2B as shown in FIG. Drive on KR. That is, the vehicle parts 2A and 2B are arranged in a state of being separated longer than the longitudinal dimension of the existing girder M1 (vehicle arrangement process), and the existing girder M1 is lifted by each crane device 60 (existing girder lifting process).
次に、図６に示すように、車両部２Ａの各送り出しジャッキ３０によって、既設桁Ｍ１が吊り上げられた架替空間ＫＫに仮橋桁４を送り出す。これにより、仮橋桁４は、吊り上げられた既設桁Ｍ１の下方で、橋桁Ｈ４と橋桁Ｈ６との間に架け渡される（送り出し工程）。続いて、図７に示すように、第１橋桁架替車両１Ａは、車両部２Ａのクローラ４０によって、架け渡された仮橋桁４の上を直線移動して、架替空間ＫＫを渡る（直線移動工程）。
Next, as shown in FIG. 6, the temporary bridge girder 4 is sent out to the replacement space KK in which the existing girder M <b> 1 is lifted by the feeding jacks 30 of the vehicle portion 2 </ b> A. Thereby, the temporary bridge girder 4 is bridged between the bridge girder H4 and the bridge girder H6 below the existing girder M1 that has been lifted (feeding process). Subsequently, as shown in FIG. 7, the first bridge girder replacement vehicle 1 </ b> A moves linearly on the temporary bridge girder 4 that is bridged by the crawler 40 of the vehicle portion 2 </ b> A and crosses the replacement space KK (straight line). Moving process).
そして、第１橋桁架替車両１Ａは、走行装置２０によって第１作業ヤードＳ１の橋幅方向に隣接した位置まで走行し、図８に示すように、第１作業ヤードＳ１まで横行する。その後、図９に示すように、各クレーン装置６０によって既設桁Ｍ１を第１作業ヤードＳ１で吊り降ろす（既設桁吊り降ろし工程）。こうして、第１橋桁架替車両１Ａは橋梁ＫＲ上を自走するだけであり、第１作業ヤードＳ１以外で橋梁ＫＲの上下空間を使用せずに既設桁Ｍ１を撤去することができる。
Then, the first bridge girder replacement vehicle 1A travels to a position adjacent to the first work yard S1 in the bridge width direction by the travel device 20, and traverses to the first work yard S1 as shown in FIG. Thereafter, as shown in FIG. 9, the existing girders M <b> 1 are suspended in the first work yard S <b> 1 by the crane devices 60 (existing girder hanging process). Thus, the first bridge girder replacement vehicle 1A only travels on the bridge KR, and the existing girder M1 can be removed without using the space above and below the bridge KR other than the first work yard S1.
また、図１０に示すように、第１作業ヤードＳ１で既設桁Ｍ１を撤去している間に、第２橋桁架替車両１Ｂは、各クレーン装置６０によって第２作業ヤードＳ２で新設桁Ｎ１を吊り上げる（新設桁吊り上げ工程）。次に、第２橋桁架替車両１Ｂは、走行装置２０によって橋桁Ｈ２，Ｈ３，Ｈ４に向かって横行した後、仮橋桁４の一端部４ｃ（図１０の仮橋桁４の左端部）まで走行する。そして、図１１に示すように、第２橋桁架替車両１Ｂは、車両部２Ｂのクローラ４０によって、架け渡された仮橋桁４の上を直線移動して、架替空間ＫＫの上側に新設桁Ｎ１を配置する（新設桁配置工程）。
Further, as shown in FIG. 10, while the existing girders M1 are being removed in the first work yard S1, the second bridge girder replacement vehicle 1B uses the crane devices 60 to install the new girders N1 in the second work yard S2. Lifting (new girder lifting process). Next, the second bridge girder replacement vehicle 1B travels to the bridge girders H2, H3, H4 by the traveling device 20, and then travels to one end 4c of the temporary bridge girder 4 (the left end of the temporary bridge girder 4 in FIG. 10). . Then, as shown in FIG. 11, the second bridge girder replacement vehicle 1B is linearly moved over the temporary bridge girder 4 that is bridged by the crawler 40 of the vehicle portion 2B, and the new girder is placed above the replacement space KK. N1 is arranged (new girder arrangement process).
続いて、図１２に示すように、車両部２Ａの送り出しジャッキ３０によって、仮橋桁４を第２作業ヤードＳ２の方へ送り出して、仮橋桁４を架替空間ＫＫから撤去する（仮橋桁撤去工程）。これにより、各クレーン装置６０によって新設桁Ｎ１を吊り降ろして、図１３に示すように、新設桁Ｎ１を架替空間ＫＫに設置し、架け替え作業が完了する。こうして、第２橋桁架替車両１Ｂは橋梁ＫＲ上を自走するだけであり、第２作業ヤードＳ２以外で橋梁ＫＲの上下空間を使用せずに新設桁Ｎ１を設置することができる。
Subsequently, as shown in FIG. 12, the temporary bridge girder 4 is sent out toward the second work yard S2 by the delivery jack 30 of the vehicle portion 2A, and the temporary bridge girder 4 is removed from the replacement space KK (temporary bridge girder removal step). ). Thereby, the new girder N1 is suspended by each crane device 60, and the new girder N1 is installed in the replacement space KK, as shown in FIG. 13, and the replacement work is completed. Thus, the second bridge girder replacement vehicle 1B only travels on the bridge KR, and the new girder N1 can be installed without using the space above and below the bridge KR other than the second work yard S2.
本実施形態の作用効果について説明する。
本実施形態によれば、橋梁ＫＲの下方にトラッククレーンＴＣ（図１４参照）や大型自走式キャリヤＯＣ（図１５参照）を配置する必要がなくて、第１橋桁架替車両１Ａ及び第２橋桁架替車両１Ｂが橋梁ＫＲ上を自走することで、架け替えを行うことができる。つまり、従来の架替方法と異なり、第１橋桁架替車両１Ａ及び第２橋桁架替車両１Ｂが橋梁ＫＲ上を自走する空間を確保するだけで良く、橋梁ＫＲの上下空間を大きく使用することがない。従って、交通規制の範囲が狭く、従来の橋梁ＫＲの下方で行っていた交通規制を減らすことができる。また、橋梁ＫＲの下方でベントの組立及び解体を行う必要がなくて、安全である。更に、大型自走式キャリヤを使用する方法のように、既設桁の解体及び新設桁の組立を行うための広い作業ヤードが必要なくて、比較的狭い第１作業ヤードＳ１及び第２作業ヤードＳ２で良い。 The effect of this embodiment is demonstrated.
According to the present embodiment, there is no need to dispose the truck crane TC (see FIG. 14) or the large self-propelled carrier OC (see FIG. 15) below the bridge KR, and the first bridge girder replacement vehicle 1A and the second The bridge girder replacement vehicle 1B can perform the replacement by traveling on the bridge KR. That is, unlike the conventional replacement method, it is only necessary to secure a space for the first bridge girder replacement vehicle 1A and the second bridge girder replacement vehicle 1B to travel on the bridge KR, and the space above and below the bridge KR is greatly used. There is nothing. Therefore, the range of traffic regulation is narrow, and the traffic regulation performed under the conventional bridge KR can be reduced. Further, it is safe because there is no need to assemble and disassemble the vent under the bridge KR. Furthermore, unlike the method using a large self-propelled carrier, there is no need for a wide work yard for disassembling existing girders and assembling new girders, and the relatively narrow first work yard S1 and second work yard S2 are used. Good.
本実施形態によれば、橋梁ＫＲの下方にトラッククレーンＴＣ（図１４参照）や大型自走式キャリヤＯＣ（図１５参照）を配置する必要がなくて、第１橋桁架替車両１Ａ及び第２橋桁架替車両１Ｂが橋梁ＫＲ上を自走することで、架け替えを行うことができる。つまり、従来の架替方法と異なり、第１橋桁架替車両１Ａ及び第２橋桁架替車両１Ｂが橋梁ＫＲ上を自走する空間を確保するだけで良く、橋梁ＫＲの上下空間を大きく使用することがない。従って、交通規制の範囲が狭く、従来の橋梁ＫＲの下方で行っていた交通規制を減らすことができる。また、橋梁ＫＲの下方でベントの組立及び解体を行う必要がなくて、安全である。更に、大型自走式キャリヤを使用する方法のように、既設桁の解体及び新設桁の組立を行うための広い作業ヤードが必要なくて、比較的狭い第１作業ヤードＳ１及び第２作業ヤードＳ２で良い。 The effect of this embodiment is demonstrated.
According to the present embodiment, there is no need to dispose the truck crane TC (see FIG. 14) or the large self-propelled carrier OC (see FIG. 15) below the bridge KR, and the first bridge girder replacement vehicle 1A and the second The bridge girder replacement vehicle 1B can perform the replacement by traveling on the bridge KR. That is, unlike the conventional replacement method, it is only necessary to secure a space for the first bridge girder replacement vehicle 1A and the second bridge girder replacement vehicle 1B to travel on the bridge KR, and the space above and below the bridge KR is greatly used. There is nothing. Therefore, the range of traffic regulation is narrow, and the traffic regulation performed under the conventional bridge KR can be reduced. Further, it is safe because there is no need to assemble and disassemble the vent under the bridge KR. Furthermore, unlike the method using a large self-propelled carrier, there is no need for a wide work yard for disassembling existing girders and assembling new girders, and the relatively narrow first work yard S1 and second work yard S2 are used. Good.
以上により、走行する道路そのものを利用しているため、都市高速道路等のような上下空間に大きな制約がある橋梁であっても、使用する上下空間を抑えつつ、安全に且つ狭い作業ヤードで架け替えを行うことができる。こうして、本実施形態の橋桁架替方法は、架け替え需要に対して幅広く対応できる架替方法であり、特に橋梁の老朽化が深刻で既設桁の補修では対応できない場合に有効である。
As described above, since the traveling road itself is used, even a bridge with a large restriction in the vertical space such as an urban expressway can be safely and laid in a narrow work yard while suppressing the vertical space to be used. Can be replaced. Thus, the bridge girder replacement method of the present embodiment is a replacement method that can respond widely to replacement demand, and is particularly effective when the bridge is seriously deteriorated and cannot be dealt with by repairing the existing girder.
また、本実施形態によれば、２台の橋桁架替車両（第１橋桁架替車両１Ａ及び第２橋桁架替車両１Ｂ）と２つの作業ヤード（第１作業ヤードＳ１及び第２作業ヤードＳ２）を利用することで、既設桁Ｍ１の撤去と新設桁Ｎ１の架設とをほとんど同時に行うことができる。従って、施工期間を短縮することができる。更に、第１橋桁架替車両１Ａ及び第２橋桁架替車両１Ｂは、走行装置２０によって斜行や横行のような複雑な走行を行うことができるため、第１作業ヤードＳ１及び第２作業ヤードＳ２のような狭い作業ヤードであっても確実に移動することができる。つまり、第１橋桁架替車両１Ａ及び第２橋桁架替車両１Ｂは、約９０度旋回するような走行（横行）ができるため、設置する作業ヤードを狭くすることができる。
Further, according to the present embodiment, two bridge girder replacement vehicles (first bridge girder replacement vehicle 1A and second bridge girder replacement vehicle 1B) and two work yards (first work yard S1 and second work yard S2). ) Can be used to remove the existing girder M1 and construct the new girder N1 almost simultaneously. Therefore, the construction period can be shortened. Furthermore, since the first bridge girder replacement vehicle 1A and the second bridge girder replacement vehicle 1B can perform complicated traveling such as oblique running or traversing by the traveling device 20, the first work yard S1 and the second work yard. Even a narrow work yard such as S2 can be moved reliably. That is, the first bridge girder replacement vehicle 1A and the second bridge girder replacement vehicle 1B can travel (transverse) so as to turn about 90 degrees, so that the work yard to be installed can be narrowed.
ここで、本実施形態の橋桁架替車両１は、輸送機器分野のキャリヤで用いる走行装置２０と、橋梁分野で用いる送り出しジャッキ３０と、建機分野で用いるクローラ４０及びクレーン装置６０とを組み合わせて、橋桁架替用の特殊車両として構成したものである。これら走行装置２０と送り出しジャッキ３０とクローラ４０とクレーン装置６０とは、本出願人が全て製造できるものであり、言い換えると、輸送機器分野と橋梁分野と建機分野の全てに精通している本出願人であるから、橋桁架替車両１として応用して構成できるものである。従って、本出願人以外では組み合わせとして考え難い極めて特殊な車両である。
Here, the bridge girder replacement vehicle 1 of the present embodiment is a combination of a traveling device 20 used in a carrier in the transportation equipment field, a delivery jack 30 used in the bridge field, a crawler 40 and a crane device 60 used in the construction equipment field. This is a special vehicle for bridge girder replacement. The traveling device 20, the delivery jack 30, the crawler 40, and the crane device 60 can all be manufactured by the present applicant, in other words, a book that is familiar with the transportation equipment field, the bridge field, and the construction equipment field. Since the applicant is an applicant, the bridge girder replacement vehicle 1 can be applied and configured. Therefore, it is a very special vehicle that is difficult to consider as a combination except for the present applicant.
なお、本実施形態の橋桁架替車両１は、ユニット化された二つの車両部２Ａ，２Ｂで合計８軸になっていて、１軸あたり約２５ｔｏｎの重量物の吊り上げ又は吊り降ろしができるため、約２００ｔｏｎの既設桁を吊り上げ又は吊り降ろすことができる。但し、架替対象である既設桁の重量が大きい場合には、橋桁架替車両の変形例として、ユニット化された車両部の数を３つ以上に増やせば良い。
The bridge girder replacement vehicle 1 of this embodiment has a total of 8 axes in the unitized two vehicle parts 2A and 2B, and can lift or suspend heavy objects of about 25 tons per axis. An existing girder of about 200 tons can be lifted or hung. However, when the weight of the existing girder to be replaced is large, the number of unitized vehicle parts may be increased to three or more as a modified example of the bridge girder replacement vehicle.
以上、本発明に係る橋桁架替車両及び橋桁架替方法の実施形態について説明したが、本発明はこの実施形態に限定されることなく、その趣旨を逸脱しない範囲で様々な変更が可能である。
例えば、本実施形態において、２台の橋桁架替車両と２つの作業ヤードを用いて架け替えを行ったが、１台の橋桁架替車両と１つの作業ヤードを用いて架け替えを行っても良い。この場合には、既設桁Ｍ１の撤去と新設桁Ｎ１とを分けて行うため、施工期間が長くなるが、１つの作業ヤードで済むため、交通規制の範囲を狭くすることができる。
また、本実施形態において、架替空間ＫＫに１本の仮橋桁４を架け渡したが、架け渡す仮橋桁４は２本以上であっても良い。 The embodiment of the bridge girder replacement vehicle and the bridge girder replacement method according to the present invention has been described above, but the present invention is not limited to this embodiment, and various modifications can be made without departing from the scope of the present invention. .
For example, in the present embodiment, the replacement is performed using two bridge girder replacement vehicles and two work yards, but even if the replacement is performed using one bridge girder replacement vehicle and one work yard. good. In this case, since the removal of the existing girder M1 and the new girder N1 are performed separately, the construction period becomes longer, but since only one work yard is required, the range of traffic regulation can be narrowed.
In this embodiment, one temporary bridge girder 4 is bridged in the replacement space KK, but two or more temporary bridge girders 4 may be bridged.
例えば、本実施形態において、２台の橋桁架替車両と２つの作業ヤードを用いて架け替えを行ったが、１台の橋桁架替車両と１つの作業ヤードを用いて架け替えを行っても良い。この場合には、既設桁Ｍ１の撤去と新設桁Ｎ１とを分けて行うため、施工期間が長くなるが、１つの作業ヤードで済むため、交通規制の範囲を狭くすることができる。
また、本実施形態において、架替空間ＫＫに１本の仮橋桁４を架け渡したが、架け渡す仮橋桁４は２本以上であっても良い。 The embodiment of the bridge girder replacement vehicle and the bridge girder replacement method according to the present invention has been described above, but the present invention is not limited to this embodiment, and various modifications can be made without departing from the scope of the present invention. .
For example, in the present embodiment, the replacement is performed using two bridge girder replacement vehicles and two work yards, but even if the replacement is performed using one bridge girder replacement vehicle and one work yard. good. In this case, since the removal of the existing girder M1 and the new girder N1 are performed separately, the construction period becomes longer, but since only one work yard is required, the range of traffic regulation can be narrowed.
In this embodiment, one temporary bridge girder 4 is bridged in the replacement space KK, but two or more temporary bridge girders 4 may be bridged.
１ 橋桁架替車両
１Ａ 第１橋桁架替車両
１Ｂ 第２橋桁架替車両
２Ａ，２Ｂ 車両部
３ 懸架部
４ 仮橋桁
１０ 車体
１４ 動力源
２０ 走行装置
２１ 車輪
２２ アクスル
２３ アーム部材
２４ 回転プレート
３０ 送り出しジャッキ
４０ クローラ
５０ 屋根枠
６０ クレーン装置
ＫＲ 橋梁
Ｈ１〜Ｈ９ 橋桁
Ｍ１ 既設桁
Ｎ１ 新設桁
Ｓ１ 第１作業ヤード
Ｓ２ 第２作業ヤード
ＫＫ 架替空間 DESCRIPTION OF SYMBOLS 1 Bridge girder replacement vehicle 1A 1st bridge girder replacement vehicle 1B 2nd bridge girder replacement vehicle 2A, 2B Vehicle part 3 Suspension part 4 Temporary bridge girder 10 Car body 14 Power source 20 Traveling device 21 Wheel 22 Axle 23 Arm member 24 Rotating plate 30 Sending out Jack 40 Crawler 50 Roof frame 60 Crane device KR Bridge H1 to H9 Bridge girder M1 Existing girder N1 New girder S1 First work yard S2 Second work yard KK Replacement space
１Ａ 第１橋桁架替車両
１Ｂ 第２橋桁架替車両
２Ａ，２Ｂ 車両部
３ 懸架部
４ 仮橋桁
１０ 車体
１４ 動力源
２０ 走行装置
２１ 車輪
２２ アクスル
２３ アーム部材
２４ 回転プレート
３０ 送り出しジャッキ
４０ クローラ
５０ 屋根枠
６０ クレーン装置
ＫＲ 橋梁
Ｈ１〜Ｈ９ 橋桁
Ｍ１ 既設桁
Ｎ１ 新設桁
Ｓ１ 第１作業ヤード
Ｓ２ 第２作業ヤード
ＫＫ 架替空間 DESCRIPTION OF SYMBOLS 1 Bridge girder replacement vehicle 1A 1st bridge girder replacement vehicle 1B 2nd bridge girder replacement vehicle 2A, 2B Vehicle part 3 Suspension part 4 Temporary bridge girder 10 Car body 14 Power source 20 Traveling device 21 Wheel 22 Axle 23 Arm member 24 Rotating plate 30 Sending out Jack 40 Crawler 50 Roof frame 60 Crane device KR Bridge H1 to H9 Bridge girder M1 Existing girder N1 New girder S1 First work yard S2 Second work yard KK Replacement space
Claims (4)
- 架け替え対象の既設桁の長手方向寸法より長く離間して配置された一対の車両部と、これら一対の車両部を連結する懸架部とを備える橋桁架替車両であって、
前記懸架部は、
前記既設桁を吊り上げるクレーン装置を備え、
前記各車両部は、
動力源を搭載する車体と、
橋梁上を走行するための複数の走行装置と、
前記既設桁の長手方向寸法より長い仮橋桁を長手方向に送り出す送り出し装置と、
前記仮橋桁の上を走行する直線移動装置と、
を備えることを特徴とする橋桁架替車両。 A bridge girder replacement vehicle comprising a pair of vehicle parts arranged longer than the longitudinal dimension of an existing girder to be replaced, and a suspension part that connects the pair of vehicle parts,
The suspension is
A crane device for lifting the existing girder,
Each vehicle part is
A vehicle body with a power source,
A plurality of traveling devices for traveling on the bridge;
A delivery device that sends out a temporary bridge girder longer than the existing girder in the longitudinal direction;
A linear moving device that travels over the temporary bridge girder;
A bridge girder replacement vehicle characterized by comprising: - 請求項１に記載された橋桁架替車両において、
前記各走行装置は、複数の車輪を支持するアクスルと、前記アクスルを旋回可能に前記車体に取付けるアーム部材とを有し、前記車体に対して独立して操舵可能であることを特徴とする橋桁架替車両。 In the bridge girder replacement vehicle according to claim 1,
Each of the travel devices includes an axle that supports a plurality of wheels, and an arm member that is attached to the vehicle body so that the axle can turn, and can be steered independently of the vehicle body. Girder replacement vehicle. - 請求項１又は請求項２に記載された橋桁架替車両を走行させてその各車両部を前記既設桁の長手方向寸法より長く離間している状態で配置する車両配置工程と、
前記クレーン装置によって前記既設桁を吊り上げる既設桁吊り上げ工程と、
前記送り出し装置によって前記既設桁が吊り上げられた架替空間に仮橋桁を送り出して架け渡す送り出し工程と、
前記直線移動装置によって前記架け渡された仮橋桁の上を直線移動して前記架替空間を渡る直線移動工程と、
前記走行装置によって橋梁に隣接する作業ヤードまで走行し、前記クレーン装置によって前記既設桁を作業ヤードで吊り降ろす既設桁吊り降ろし工程と、
前記クレーン装置によって作業ヤードで新設桁を吊り上げる新設桁吊り上げ工程と、
前記走行装置によって前記仮橋桁の一端部まで走行し、前記直線移動装置によって前記仮橋桁の上を直線移動して前記架替空間の上側に前記新設桁を配置する新設桁配置工程と、
前記送り出し装置によって前記仮橋桁を送り出して前記架替空間から撤去する仮橋桁撤去工程と、
前記クレーン装置によって前記新設桁を吊り降ろして前記架替空間に設置する新設桁設置工程とを備えることを特徴とする橋桁架替方法。 A vehicle arrangement step of running the bridge girder replacement vehicle according to claim 1 or 2 and arranging each vehicle portion in a state of being separated longer than the longitudinal dimension of the existing girder;
An existing girder lifting step of lifting the existing girder by the crane device;
A sending-out process of sending out the temporary bridge girder to the replacement space where the existing girder is lifted by the sending-out device;
A linear movement step of linearly moving on the bridge bridge girder spanned by the linear movement device and crossing the replacement space;
Traveling to a work yard adjacent to the bridge by the traveling device, and hanging the existing girder in the work yard by the crane device; and
A new girder lifting process for lifting a new girder in a work yard by the crane device;
Traveling to one end of the temporary bridge girder by the traveling device, linearly moving on the temporary bridge girder by the linear movement device, and arranging the new girder above the replacement space; and
The temporary bridge girder removal step of sending out the temporary bridge girder by the sending device and removing it from the replacement space;
A bridge girder replacement method comprising: a new girder installation step of suspending the new girder by the crane device and installing it in the replacement space. - 請求項１又は請求項２に記載された橋桁架替車両を第１橋桁架替車両と第２橋桁架替車両として２台用意し、前記第１橋桁架替車両を走行させてその各車両部を前記既設桁の長手方向寸法より長く離間している状態で配置する車両配置工程と、
前記第１橋桁架替車両のクレーン装置によって前記既設桁を吊り上げる既設桁吊り上げ工程と、
前記第１橋桁架替車両の送り出し装置によって前記既設桁が吊り上げられた架替空間に仮橋桁を送り出して架け渡す送り出し工程と、
前記第１橋桁架替車両の直線移動装置によって前記架け渡された仮橋桁の上を直線移動して前記架替空間を渡る直線移動工程と、
前記第１橋桁架替車両の走行装置によって橋梁に隣接する第１作業ヤードまで走行し、そのクレーン装置によって前記既設桁を第１作業ヤードで吊り降ろす既設桁吊り降ろし工程と、
前記第２橋桁架替車両のクレーン装置によって橋梁に隣接する第２作業ヤードで新設桁を吊り上げる新設桁吊り上げ工程と、
前記第２橋桁架替車両の走行装置によって前記仮橋桁の一端部まで走行し、その直線移動装置によって前記仮橋桁の上を直線移動して前記架替空間の上側に前記新設桁を配置する新設桁配置工程と、
前記第２橋桁架替車両の送り出し装置によって前記仮橋桁を送り出して前記架替空間から撤去する仮橋桁撤去工程と、
前記第２橋桁架替車両のクレーン装置によって前記新設桁を吊り降ろして前記架替空間に設置する新設桁設置工程とを備えることを特徴とする橋桁架替方法。 Two bridge girder replacement vehicles according to claim 1 or 2 are prepared as a first bridge girder replacement vehicle and a second bridge girder replacement vehicle, and the first bridge girder replacement vehicle travels to each vehicle part. Vehicle placement step for placing the vehicle in a state of being separated longer than the longitudinal dimension of the existing girder,
An existing girder lifting step of lifting the existing girder by a crane device of the first bridge girder replacement vehicle;
A sending-out step of sending the temporary bridge girder to the replacement space in which the existing girder is lifted by the sending device of the first bridge-girder replacement vehicle;
A linear movement step of linearly moving on the temporary bridge girder spanned by the linear movement device of the first bridge girder replacement vehicle and crossing the replacement space;
An existing girder suspension step of traveling to the first work yard adjacent to the bridge by the traveling device of the first bridge girder replacement vehicle, and suspending the existing girder at the first work yard by the crane device;
A new girder lifting step of lifting a new girder at a second work yard adjacent to the bridge by the crane device of the second bridge girder replacement vehicle;
The second bridge girder replacement vehicle travels to one end of the temporary bridge girder, and the linear movement device linearly moves on the temporary bridge girder to place the newly installed girder above the replacement space. Girder placement process;
A temporary bridge girder removal step of sending out the temporary bridge girder by the delivery device of the second bridge girder replacement vehicle and removing it from the replacement space;
A bridge girder replacement method, comprising: a new girder installation step in which the new girder is suspended and installed in the replacement space by a crane device of the second bridge girder replacement vehicle.
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| CN105464009A (en) * | 2016-01-13 | 2016-04-06 | 邓泽仲 | Device for rapidly replacing bridge and construction method thereof |
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| CN109914249A (en) * | 2019-03-12 | 2019-06-21 | 刘金生 | It is a kind of for bridge construction with the transporting equipment removed obstacles with regulatory function |
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| CN107675633A (en) * | 2017-09-27 | 2018-02-09 | 中铁十四局集团有限公司 | The method that the existing whole hole of bridge is changed |
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