CN110485289A - A kind of inspection platform in extension type double plane cable stayed bridge king-post drag-line area - Google Patents
A kind of inspection platform in extension type double plane cable stayed bridge king-post drag-line area Download PDFInfo
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- CN110485289A CN110485289A CN201910802838.5A CN201910802838A CN110485289A CN 110485289 A CN110485289 A CN 110485289A CN 201910802838 A CN201910802838 A CN 201910802838A CN 110485289 A CN110485289 A CN 110485289A
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- 238000007689 inspection Methods 0.000 title abstract description 4
- 238000012423 maintenance Methods 0.000 claims abstract description 27
- 239000000725 suspension Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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Abstract
本发明提供一种可伸缩式双索面斜拉桥塔柱拉索区的检修平台，悬吊操作平台位于两个拉索面之间；所述伸缩操作平台位于悬吊操作平台内，可沿悬吊操作平台内的轨道滑动、伸出悬吊操作平台；所述提升系统包括龙门架、提升机、安全锁、吊绳和塔顶伸缩吊点支架，所述龙门架与悬吊操作平台相连，所述提升机、安全锁安装在龙门架上，所述吊绳将塔顶伸缩吊点支架与龙门架相连，在提升机的带动下，悬吊操作平台和伸缩操作平台可上下升降；所述防坠落装置固定在直塔柱顶端。本发明的检修平台在遇到斜拉索等障碍物时，可以通过伸缩操作平台的缩回来避开障碍物，尤其适用于对双索面斜拉桥塔柱拉索区进行检查和维护操作。
The invention provides a retractable maintenance platform for the cable area of the tower column of a cable-stayed bridge with double cable planes. The suspension operation platform is located between the two cable surfaces; The rails in the suspended operation platform slide and protrude from the suspended operation platform; the lifting system includes a gantry frame, a hoist, a safety lock, a suspension rope and a telescopic lifting point bracket on the top of the tower, and the gantry is connected with the suspended operation platform , the hoist and the safety lock are installed on the gantry frame, and the sling connects the telescopic lifting point bracket on the top of the tower with the gantry frame, and driven by the hoist, the suspension operation platform and the telescopic operation platform can be lifted up and down; The anti-fall device is fixed on the top of the straight tower column. When encountering obstacles such as cable stays, the maintenance platform of the present invention can avoid obstacles by retracting the telescopic operation platform, and is especially suitable for inspection and maintenance operations on the cable stay area of the tower column of a double-cable cable-stayed bridge.
Description
技术领域technical field
本发明涉及桥梁维修的技术领域，具体地说是一种可伸缩式双索面斜拉桥塔柱拉索区的检修平台。The invention relates to the technical field of bridge maintenance, in particular to a retractable maintenance platform for the cable area of the pylon column of a cable-stayed bridge with double cable planes.
背景技术Background technique
斜拉桥因优美的外形、合理的受力、较大的跨越能力在桥梁工程领域中得到了广泛的应用。斜拉桥塔柱作为主要承载构件，承受通过斜拉索传递过来的各种荷载，在桥梁运营过程中，因结构安全要求需对塔柱进行检查、维护或者因景观要求需对塔柱进行涂装、装饰。Cable-stayed bridges have been widely used in the field of bridge engineering because of their beautiful shape, reasonable force, and large spanning capacity. As the main load-bearing component, the tower column of the cable-stayed bridge bears various loads transmitted through the cable-stayed cables. During the operation of the bridge, the tower column needs to be inspected and maintained due to structural safety requirements or painted due to landscape requirements. Dress up, decorate.
对于拉索面，沿塔柱上下分布着多根斜拉索且斜拉索的倾斜角度不同，如何避开斜拉索对拉索分布区进行检修是一个难题。“一种可拆卸式斜拉桥直塔柱的检修平台” （专利申请号：CN201521060708.2）提出采取拆卸部分检修平台的方式绕过斜拉索，但方式操作复杂且又在高空中进行，严重影响检修的效率。因此有必要研发一种检修平台，这种检修平台能满足重量轻、操作方便、可实现对双索面斜拉桥塔柱拉索区的检修且不受斜拉索等障碍物影响等的要求。For the cable surface, there are multiple stay cables distributed up and down along the tower column and the inclination angles of the stay cables are different. How to avoid the stay cables and maintain the cable distribution area is a difficult problem. "A detachable maintenance platform for the straight tower column of a cable-stayed bridge" (patent application number: CN201521060708.2) proposes to bypass the cable-stayed cables by dismantling part of the maintenance platform, but the operation is complicated and carried out at high altitude. Seriously affect the efficiency of maintenance. Therefore, it is necessary to develop a maintenance platform that can meet the requirements of light weight, convenient operation, and maintenance of the cable area of the tower column of the double-cable cable-stayed bridge without being affected by obstacles such as cables. .
发明内容Contents of the invention
本发明的目的在于提供一种可伸缩式双索面斜拉桥塔柱拉索区的检修平台，可实现对双索面斜拉桥塔柱拉索区的检修且不受斜拉索等障碍物的影响。The purpose of the present invention is to provide a retractable maintenance platform for the cable area of the tower column of the double-cable-plane cable-stayed bridge, which can realize the maintenance of the cable-stay area of the tower column of the double-cable cable-stayed bridge without obstacles such as cable stays influence of things.
为了实现上述目的，本发明的技术方案如下：一种可伸缩式双索面斜拉桥塔柱拉索区的检修平台，其特征在于，所述的检修平台包括：In order to achieve the above object, the technical solution of the present invention is as follows: an inspection platform for the cable area of the pylon column of a retractable double-cable-plane cable-stayed bridge, characterized in that the inspection platform includes:
悬吊操作平台，所述悬吊操作平台位于两个拉索面之间；A suspended operation platform, the suspended operation platform is located between two cable surfaces;
伸缩操作平台，所述伸缩操作平台位于悬吊操作平台内，可沿悬吊操作平台内的轨道滑动、伸出悬吊操作平台；Telescopic operation platform, the telescopic operation platform is located in the suspension operation platform, can slide along the track in the suspension operation platform, and extend out of the suspension operation platform;
提升系统，所述提升系统包括龙门架、提升机、安全锁、吊绳和塔顶伸缩吊点支架，所述龙门架与悬吊操作平台相连，所述提升机、安全锁安装在龙门架上，所述塔顶伸缩吊点支架固定在塔顶女儿墙上，所述吊绳将塔顶伸缩吊点支架与龙门架相连，在所述提升机的带动下，悬吊操作平台和伸缩操作平台上下升降；A lifting system, the lifting system includes a gantry frame, a hoist, a safety lock, a suspension rope and a telescopic lifting point bracket at the top of the tower, the gantry frame is connected with the suspension operation platform, and the hoisting machine and the safety lock are installed on the gantry frame , the telescopic hanging point bracket at the top of the tower is fixed on the parapet wall at the top of the tower, the telescopic hanging point bracket at the top of the tower is connected with the gantry frame by the sling, and the operating platform and the telescopic operating platform are suspended under the drive of the hoist up and down;
伸缩操作平台在升降过程中遇到斜拉索等障碍物时，可沿悬吊操作平台内的轨道缩回悬吊操作平台内，从而避开斜拉索等障碍物。When the telescopic operation platform encounters obstacles such as stay cables during the lifting process, it can be retracted into the suspension operation platform along the track in the suspension operation platform, thereby avoiding obstacles such as stay cables.
进一步地，所述的检修平台还包括防坠落装置，所述防坠落装置包括一端固定在塔柱顶端的人员安全绳，以及放置在悬吊操作平台内的锁绳器，所述锁绳器用于将悬吊操作平台内操作人员的安全带与人员安全绳相连，操作平台升降时，锁绳器沿人员安全绳滑动，操作平台到达检修位置时，按下锁绳器开关，将安全带与人员安全绳锁定。Further, the maintenance platform also includes a fall prevention device, the fall prevention device includes a personnel safety rope with one end fixed on the top of the tower column, and a rope lock placed in the suspended operation platform, the rope lock is used for Connect the safety belt of the operator in the suspended operation platform to the personnel safety rope. When the operation platform is raised and lowered, the rope lock device slides along the personnel safety rope. When the operation platform reaches the maintenance position, press the switch of the rope lock device to connect the safety belt Safety rope locked.
进一步地，所述悬吊操作平台和伸缩操作平台为由高强度铝合金焊接而成的桁架结构。Further, the suspended operation platform and telescopic operation platform are truss structures welded by high-strength aluminum alloy.
进一步地，悬吊操作平台的底部靠近塔柱面安装有两个靠墙轮，所述靠墙轮采用橡胶轮，在操作平台升降过程中，可沿塔柱面滚动。Further, the bottom of the suspended operation platform is equipped with two wall-mounted wheels near the tower cylinder. The wall-rest wheels are rubber wheels, which can roll along the tower cylinder during the lifting process of the operation platform.
进一步地，伸缩操作平台在伸出侧的端面栏和远离塔柱的侧面栏，采用合页翻转的方式，降低伸缩操作平台穿过两根斜拉索间的高度。Furthermore, the telescopic operation platform adopts hinge flipping on the end face column on the protruding side and the side column away from the tower column, so as to reduce the height of the telescopic operation platform passing through the two stay cables.
进一步地，所述吊绳包括工作吊绳和安全吊绳，工作吊绳和安全吊绳上端均直接悬挂在塔顶伸缩吊点支架的端部，工作吊绳下端直接与龙门架上的提升机相连，安全吊绳下端穿过安全锁与龙门架相连，正常工作时由工作吊绳承载受力，安全吊绳随动收放，工作吊绳发生危险破断时，安全吊绳开始承载受力，并自动启动安全锁进行制动，阻止操作平台继续下降。Further, the sling includes a working sling and a safety sling, the upper ends of the working sling and the safety sling are directly suspended from the end of the telescopic lifting point bracket at the top of the tower, and the lower end of the working sling is directly connected to the hoist on the gantry frame. The lower end of the safety sling is connected to the gantry through the safety lock. During normal operation, the working sling bears the force, and the safety sling is retracted and retracted accordingly. When the working sling breaks dangerously, the safety sling begins to bear the force. And automatically activate the safety lock for braking, preventing the operating platform from continuing to descend.
本发明的有益效果在于：The beneficial effects of the present invention are:
1）本检修平台可实现双索面斜拉桥塔柱拉索区的全覆盖检修，在遇到斜拉索等障碍物时，可通过操作平台的伸缩避开斜拉索。1) This maintenance platform can realize the full-coverage maintenance of the cable area of the tower column of the double-cable cable-stayed bridge. When encountering obstacles such as cable-stayed cables, the cable-stayed cables can be avoided through the expansion and contraction of the operating platform.
2）塔顶伸缩吊点支架不使用时，可收缩至女儿墙内，利于养护，且不影响桥梁景观。2) When the telescopic lifting point bracket on the top of the tower is not in use, it can be retracted into the parapet wall, which is convenient for maintenance and does not affect the bridge landscape.
3）操作平台采用高强度铝合金材质的桁架结构，大大减轻了操作平台的重量，有效降低了对提升系统提升能力的要求。3) The operating platform adopts a truss structure made of high-strength aluminum alloy, which greatly reduces the weight of the operating platform and effectively reduces the requirements for the lifting capacity of the lifting system.
4）悬吊操作平台、吊绳不使用时，可放置在库房，避免暴露在室外环境中，使用寿命大大增加。4) When the suspended operation platform and sling are not in use, they can be placed in the warehouse to avoid exposure to the outdoor environment and greatly increase the service life.
5）检修施工时，由于施工影响范围小，对桥面行车影响小。5) During maintenance and construction, due to the small scope of construction influence, the impact on traffic on the bridge deck is small.
附图说明Description of drawings
图1为可伸缩式双索面斜拉桥塔柱拉索区的检修平台横桥向侧视图。Fig. 1 is a side view of the maintenance platform transverse bridge in the tower column cable area of the telescopic double-cable-plane cable-stayed bridge.
图2为可伸缩式双索面斜拉桥塔柱拉索区的检修平台顺桥向侧视图。Fig. 2 is a side view along the bridge direction of the maintenance platform of the tower column cable area of the retractable double-cable-plane cable-stayed bridge.
图3 为图1中的大样A。Figure 3 is the large sample A in Figure 1.
图4 为图2中的大样B。Fig. 4 is the large sample B in Fig. 2 .
图5 为伸缩操作平台端面栏和侧面栏翻转示意图。Fig. 5 is a schematic diagram of turning over the end and side bars of the telescopic operation platform.
图中包括：1-悬吊操作平台，1.1-靠墙轮，1.2-轨道，2-伸缩操作平台，3.1-龙门架，3.2-提升机，3.3-安全锁，3.4-吊绳，3.4.1-工作吊绳，3.4.2-安全吊绳，3.5-塔顶伸缩吊点支架，4-防坠落装置， 4.1-人员安全绳，5-斜拉索，6-女儿墙，7-塔柱面。The figure includes: 1-suspension operation platform, 1.1-wall wheels, 1.2-track, 2-telescopic operation platform, 3.1-gantry, 3.2-hoist, 3.3-safety lock, 3.4-sling, 3.4.1 -Working sling, 3.4.2-Safety sling, 3.5-Telescopic lifting point bracket at the top of the tower, 4-Falling protection device, 4.1-Personnel safety rope, 5-Stay cable, 6-Parapet wall, 7-Tower cylinder .
具体实施方式Detailed ways
下面结合附图1~5和实施例对本发明作进一步的描述。Below in conjunction with accompanying drawing 1～5 and embodiment the present invention will be further described.
参照图1~图4，一种可伸缩式双索面斜拉桥塔柱拉索区的检修平台，其包括：悬吊操作平台1、伸缩操作平台2和提升系统和防坠落装置4。Referring to Figures 1 to 4, a retractable double-cable-plane cable-stayed bridge pylon maintenance platform, which includes: a suspension operating platform 1, a telescopic operating platform 2, a lifting system and a fall prevention device 4.
参照图1，悬吊操作平台1位于两个拉索面之间。参照图3、图4，伸缩操作平台2位于悬吊操作平台1内，可沿悬吊操作平台1内的轨道1.2滑动、伸出悬吊操作平台1。Referring to FIG. 1 , a suspended operating platform 1 is located between two cable surfaces. Referring to Fig. 3 and Fig. 4, the telescopic operating platform 2 is located in the suspended operating platform 1, and can slide along the rail 1.2 in the suspended operating platform 1 and extend out of the suspended operating platform 1.
参照图1~图4，提升系统包括龙门架3.1、提升机3.2、安全锁3.3、吊绳3.4和塔顶伸缩吊点支架3.5，所述龙门架3.1与悬吊操作平台1相连，所述提升机3.2、安全锁3.3安装在龙门架3.1上，所述塔顶伸缩吊点支架3.5固定在塔顶女儿墙6上，可伸缩调节伸出塔柱的长度，所述吊绳3.4将塔顶伸缩吊点支架3.5与龙门架3.1相连，在所述提升机3.2的带动下，悬吊操作平台1和伸缩操作平台2上下升降。Referring to Figures 1 to 4, the lifting system includes a gantry 3.1, a hoist 3.2, a safety lock 3.3, a suspension rope 3.4 and a tower top telescopic lifting point bracket 3.5, the gantry 3.1 is connected with the suspension operation platform 1, and the lifting The machine 3.2 and the safety lock 3.3 are installed on the gantry 3.1, and the telescopic hanging point support 3.5 on the top of the tower is fixed on the parapet 6 at the top of the tower, and the length of the tower column can be stretched and adjusted, and the lifting rope 3.4 stretches the top of the tower The suspension point support 3.5 is connected with the gantry 3.1, and under the drive of the hoist 3.2, the suspension operation platform 1 and the telescopic operation platform 2 are lifted up and down.
参照图1~图3，防坠落装置4包括一端固定在塔柱顶端的人员安全绳4.1，以及放置在悬吊操作平台内的锁绳器，所述锁绳器用于将悬吊操作平台内操作人员的安全带与人员安全绳4.1相连，操作平台升降时，锁绳器沿人员安全绳滑动，操作平台到达检修位置时，按下锁绳器开关，将安全带与人员安全绳锁定。Referring to Figures 1 to 3, the fall prevention device 4 includes a personnel safety rope 4.1 with one end fixed on the top of the tower column, and a rope lock placed in the suspended operation platform, and the rope lock is used to operate the suspended operation platform. The personnel's safety belt is connected with the personnel safety rope 4.1. When the operating platform is raised and lowered, the rope lock slides along the personnel safety rope. When the operation platform reaches the maintenance position, press the rope lock switch to lock the safety belt and the personnel safety rope.
参照图3、图4，悬吊操作平台1的底部靠近塔柱面安装有两个靠墙轮1.1，所述靠墙轮1.1采用橡胶轮，在操作平台升降过程中，可沿塔柱面滚动。Referring to Fig. 3 and Fig. 4, the bottom of the suspended operating platform 1 is installed near the tower cylinder surface with two wall-mounted wheels 1.1, and the wall-mounted wheels 1.1 are rubber wheels, which can roll along the tower cylinder surface during the lifting process of the operating platform .
参照1、图2，伸缩操作平台2在升降过程中遇到斜拉索5等障碍物时，可沿悬吊操作平台1内的轨道1.2缩回悬吊操作平台1内，从而避开斜拉索5等障碍物。Referring to Figure 1 and Figure 2, when the telescopic operation platform 2 encounters obstacles such as cable stay cables 5 during the lifting process, it can be retracted into the suspension operation platform 1 along the track 1.2 in the suspension operation platform 1, thereby avoiding the cable stay Cable 5 and other obstacles.
参照图5，伸缩操作平台2在伸出侧的端面栏和远离塔柱的侧面栏，采用合页翻转的方式，降低伸缩操作平台穿过两根斜拉索间的高度。即伸缩操作平台在伸出侧的端面栏和远离塔柱的侧面栏分为上下两个部分，上部分通过合页的方式与下部分形成可转动连接，需要时，可将上部分通过合页翻转的方式翻到与下部分叠合，从而降低伸缩操作平台穿过两根斜拉索间的高度。With reference to Fig. 5, the telescopic operation platform 2 adopts the mode of hinge flipping at the end face column on the protruding side and the side column away from the tower column, so as to reduce the height of the telescopic operation platform passing between two stay cables. That is to say, the telescopic operation platform is divided into upper and lower parts on the end face column on the protruding side and the side column away from the tower column. The upper part forms a rotatable connection with the lower part through a hinge. When necessary, the upper part can be hinged. The way of overturning is overturned to overlap with the lower part, thereby reducing the height of the telescopic operation platform passing between two stay cables.
参照图3，吊绳3.4包括工作吊绳3.4.1和安全吊绳3.4.2，工作吊绳3.4.1和安全吊绳3.4.2上端均直接悬挂在塔顶伸缩吊点支架3.5的端部，工作吊绳3.4.1下端直接与龙门架3.1上的提升机3.2相连，安全吊绳3.4.2下端穿过安全锁3.3与龙门架3.1相连，正常工作时由工作吊绳承3.4.1载受力，安全吊绳3.4.2随动收放，工作吊绳3.4.1发生危险破断时，安全吊绳3.4.2开始承载受力，并自动启动安全锁3.3进行制动，阻止操作平台继续下降。Referring to Figure 3, the lifting rope 3.4 includes a working lifting rope 3.4.1 and a safety lifting rope 3.4.2, and the upper ends of the working lifting rope 3.4.1 and the safety lifting rope 3.4.2 are directly hung on the end of the telescopic lifting point bracket 3.5 on the top of the tower , the lower end of the working sling 3.4.1 is directly connected to the hoist 3.2 on the gantry 3.1, the lower end of the safety sling 3.4.2 passes through the safety lock 3.3 and is connected to the gantry 3.1, and the working sling 3.4.1 is loaded by the working sling during normal work When the force is applied, the safety sling 3.4.2 is retracted and retracted. When the working sling 3.4.1 breaks in a dangerous manner, the safety sling 3.4.2 starts to bear the force and automatically activates the safety lock 3.3 to brake, preventing the operation platform from continuing to operate. decline.
上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.
Claims (6)
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