CN204455862U - A kind of steel box-girder seam angle rackwork - Google Patents
A kind of steel box-girder seam angle rackwork Download PDFInfo
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- CN204455862U CN204455862U CN201520095771.3U CN201520095771U CN204455862U CN 204455862 U CN204455862 U CN 204455862U CN 201520095771 U CN201520095771 U CN 201520095771U CN 204455862 U CN204455862 U CN 204455862U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 95
- 239000010959 steel Substances 0.000 title claims abstract description 95
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 210000001503 joint Anatomy 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 description 12
- 238000003466 welding Methods 0.000 description 4
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Abstract
一种钢箱梁接缝夹角调位装置，其特征在于所述调位装置包括分别位于相邻钢箱梁对接端口处设置的反力座，张紧钢筋穿设在所述反力座之间，其中一反力座上设置有张紧钢筋调位装置驱动张紧钢筋设置。该钢箱梁接缝夹角调位装置设计合理，安装及调节施工便捷，其无须借助其他大型调位设备，仅依靠待调整的钢箱梁及相邻已施工完成钢箱梁的端部进行体积较小的反力座的安装，然后借助张紧钢筋进行钢箱梁之间相对力作用实现钢箱梁接缝夹角的调位，该施工安全系数高、施工劳动强度低效率提高并且调位精度可控。
A steel box girder joint angle adjustment device, characterized in that the position adjustment device includes reaction seats respectively located at the butt joint ports of adjacent steel box girders, and the tensioning steel bars are threaded between the reaction seats Between them, one of the reaction bases is provided with a tensioning steel bar position adjustment device to drive the tensioning steel bar to be set. The joint angle adjustment device of the steel box girder has a reasonable design and is convenient for installation and adjustment. The installation of the reaction force seat with a small volume, and then the relative force between the steel box girders is used to adjust the position of the joint angle of the steel box girders with the help of tensioning steel bars. Bit precision is controllable.
Description
技术领域technical field
本实用新型属于钢箱梁进行墩顶安装施工的调位装置，具体的涉及一种钢箱梁进行端部对接焊接前对接缝夹角进行调整的钢箱梁接缝夹角调位装置。The utility model belongs to a position adjusting device for installing and constructing pier tops of steel box girders, in particular to a joint angle adjusting device for steel box girders which adjusts the joint angle before the end butt welding of steel box girders.
背景技术Background technique
随着建筑工业和技术的日益发展，我国已经在沿海进行了多个海上高架桥梁的施工。为了实现高效率和高性能的高架梁施工，现有高架路桥普遍采用具有较大跨度的大节段钢箱梁，其长度已经达到80至130多米，重量高达2000多吨。当采用大型吊具将大节段钢箱梁进行吊装至墩台进行安装后，需要根据钢箱梁安装位置进行调位施工，首先是通过初调位装置引导钢箱梁落位至临时支座的过程称为初调位。初调位完毕后，通过墩顶精调位系统以及牛腿精调位系统对梁的高程以及水平位置进行调整，直至梁段安装线形符合设计线形的过程称为精调位。With the development of construction industry and technology, our country has carried out the construction of many sea viaducts along the coast. In order to achieve high-efficiency and high-performance viaduct construction, existing viaducts generally use large-span steel box girders with a length of 80 to 130 meters and a weight of over 2,000 tons. When the large-segment steel box girder is hoisted to the pier for installation with a large spreader, it is necessary to adjust the position according to the installation position of the steel box girder. First, guide the steel box girder to the temporary support through the initial adjustment device The process is called initial adjustment. After the initial adjustment, the beam elevation and horizontal position are adjusted through the pier top fine adjustment system and the corbel fine adjustment system until the installation alignment of the beam section conforms to the design alignment, which is called fine adjustment.
即使对钢箱梁进行精调位之后，还会因为待定位的钢箱梁因为多种原因及受力导致其端部与相邻的已定位的钢箱梁对接口处出现转角，如果不进行该钢箱梁两端的调位施工就无法进行后续的焊接作业。而受制于施工现场条件的限制，无法使用大型设备进行钢箱梁的该梁段调整。Even after fine-tuning the steel box girder, the steel box girder to be positioned will still have a corner at the interface between its end and the adjacent positioned steel box girder due to various reasons and forces. The position adjustment construction at the two ends of the steel box girder just cannot carry out the follow-up welding operation. However, due to the limitation of the construction site conditions, it is impossible to use large-scale equipment to adjust the beam section of the steel box girder.
实用新型内容Utility model content
本实用新型提供了一种设计合理，安装及调节施工便捷的钢箱梁接缝夹角调位装置，其无须借助其他大型调位设备，仅依靠待调整的钢箱梁及相邻已施工完成钢箱梁的端部进行体积较小的反力座的安装，然后借助张紧钢筋进行钢箱梁之间相对力作用实现钢箱梁接缝夹角的调位，该施工安全系数高、施工劳动强度低效率提高并且调位精度可控。The utility model provides a steel box girder joint angle adjustment device with reasonable design and convenient installation and adjustment construction. It does not need to use other large-scale position adjustment equipment, and only relies on the steel box girder to be adjusted and the adjacent construction completed. The end of the steel box girder is installed with a small reaction seat, and then the relative force between the steel box girders is used to adjust the position of the joint angle of the steel box girders with the help of tensioned steel bars. The labor intensity is low, the efficiency is improved and the positioning accuracy is controllable.
本实用新型所采用的技术方案如下：The technical scheme adopted in the utility model is as follows:
一种钢箱梁接缝夹角调位装置，其特征在于所述调位装置包括分别位于相邻钢箱梁对接端口处设置的反力座，张紧钢筋穿设在所述反力座之间，其中一反力座上设置有张紧钢筋调位装置驱动张紧钢筋设置。A steel box girder joint angle adjustment device, characterized in that the position adjustment device includes reaction seats respectively located at the butt joint ports of adjacent steel box girders, and tensioning steel bars are threaded between the reaction seats Between them, one of the reaction bases is provided with a tensioning steel bar position adjustment device to drive the tensioning steel bar to be set.
具体的讲，所述调位装置包括相邻钢箱梁对接端口的上端面及下端面固定设置的反力座，所述反力座上设置有一张紧钢筋穿设紧固部。Specifically, the position adjustment device includes a reaction force seat fixedly arranged on the upper end surface and the lower end surface of the adjacent steel box girder butt joint port, and the reaction force seat is provided with a tensioning steel bar piercing fastening part.
一实施方式中，所述反力座于相邻钢箱梁对接端口间对称设置，张紧钢筋穿设在反力座之间后其延伸方向平行于钢箱梁的轴向设置。In one embodiment, the reaction seats are arranged symmetrically between the butt joint ports of adjacent steel box girders, and the extension direction of the tensioning steel bars is arranged parallel to the axial direction of the steel box girders after passing between the reaction seats.
一实施方式中，所述张紧钢筋为精轧螺纹钢，精轧螺纹钢的一端通过锁紧螺母固定在一反力座上。In one embodiment, the tensioning steel bar is a finish-rolled rebar, and one end of the finish-rolled rebar is fixed on a reaction force seat through a locking nut.
另一实施方式中，所述张紧钢筋调位装置包括一钢筋穿心液压系统，该穿心液压顶升系统的液压驱动部与所述张紧钢筋件固定连接。In another embodiment, the tensioning steel bar positioning device includes a steel bar piercing hydraulic system, and the hydraulic driving part of the piercing hydraulic jacking system is fixedly connected with the tensioning steel bar.
该钢箱梁接缝夹角调位装置可有效的消除因制造或安装误差导致相邻钢箱梁对接端口出现的转角，方便梁段调位及焊接。借助在相邻钢箱梁对接端口处设置的反力座，可实现张紧钢筋对两个相邻钢箱梁的物理连接。实际操作中，反力座一般安装在产生转角和夹角的部位。其中一个反力座只需要固定张紧钢筋的一端，另一个反力座设置驱动张紧钢筋的装置，例如液压系统或者丝杠顶推系统，使两个反力座之间的张紧钢筋缩短，从而驱动钢箱梁产生需要的位移，满足消除梁端转角的施工要求及后续焊接操作。The steel box girder seam angle adjusting device can effectively eliminate the rotation angle at the butt joint port of adjacent steel box girders caused by manufacturing or installation errors, and is convenient for beam section adjustment and welding. The physical connection of the tensioned steel bars to the two adjacent steel box girders can be realized by means of the reaction seat arranged at the butt joint port of the adjacent steel box girders. In actual operation, the reaction force seat is generally installed at the part where the corner and the included angle are generated. One of the reaction seats only needs to fix one end of the tensioned steel bar, and the other reaction seat is equipped with a device to drive the tensioned steel bar, such as a hydraulic system or a screw jacking system, so that the tensioned steel bar between the two reaction seats is shortened , so as to drive the required displacement of the steel box girder to meet the construction requirements of eliminating the beam end corner and the subsequent welding operation.
本实用新型的有益效果在于，该钢箱梁接缝夹角调位装置设计合理，安装及调节施工便捷，其无须借助其他大型调位设备，仅依靠待调整的钢箱梁及相邻已施工完成钢箱梁的端部进行体积较小的反力座的安装，然后借助张紧钢筋进行钢箱梁之间相对力作用实现钢箱梁接缝夹角的调位，该施工安全系数高、施工劳动强度低效率提高并且调位精度可控。The beneficial effect of the utility model is that the joint angle adjustment device of the steel box girder is reasonably designed, and the installation and adjustment construction is convenient. Complete the installation of the small reaction seat at the end of the steel box girder, and then use the tensioned steel bars to carry out the relative force between the steel box girders to adjust the joint angle of the steel box girders. The construction safety factor is high, The construction labor intensity is low and the efficiency is improved, and the positioning accuracy is controllable.
下面结合附图和具体实施方式对本实用新型做进一步的阐述。Below in conjunction with accompanying drawing and specific embodiment, the utility model is further elaborated.
附图说明Description of drawings
图1是本实用新型具体实施方式的部分结构示意图。Fig. 1 is a partial structural schematic diagram of a specific embodiment of the present invention.
具体实施方式Detailed ways
如图1所示，该钢箱梁接缝夹角调位装置设置在相邻钢箱梁对接端口处，其包括位于相邻钢箱梁对接端口处设置的反力座11和21，反力座于相邻钢箱梁对接端口间对称固定设置，该反力座相邻钢箱梁对接端口的上端面或者下端面设置。图1中钢箱梁10为已完成施工钢箱梁，钢箱梁20为正在施工的钢箱梁。张紧钢筋30穿设在反力座11和21之间，张紧钢筋穿设在反力座之间后其延伸方向平行于钢箱梁的轴向设置。该张紧钢筋30为精轧螺纹钢，反力座21上设置有一张紧钢筋穿设紧固部，精轧螺纹钢的一端通过锁紧螺母固定在反力座21上。反力座11上设置有张紧钢筋调位装置驱动张紧钢筋，张紧钢筋调位装置包括一钢筋穿心液压系统12，该穿心液压系统的液压驱动部与所述张紧钢筋件固定连接。As shown in Figure 1, the steel box girder joint angle adjustment device is arranged at the butt joint port of the adjacent steel box girder, which includes reaction force seats 11 and 21 arranged at the butt joint port of the adjacent steel box girder, and the reaction force The seat is symmetrically and fixedly arranged between the butt joint ports of adjacent steel box girders, and the reaction seat is arranged on the upper end surface or the lower end face of the adjacent steel box girder butt joint ports. The steel box girder 10 in Fig. 1 is a steel box girder that has been constructed, and the steel box girder 20 is a steel box girder under construction. The tensioning steel bar 30 is threaded between the reaction force seats 11 and 21, and the extension direction of the tensioning steel bar is arranged parallel to the axial direction of the steel box girder after being threaded between the reaction force seats. The tensioning steel bar 30 is a finish-rolled threaded steel, and the reaction force seat 21 is provided with a tensioning steel bar piercing fastening part, and one end of the finished-rolled threaded steel bar is fixed on the reaction force seat 21 by a locking nut. The reaction force seat 11 is provided with a tensioning steel bar positioning device to drive the tensioning steel bar. The tensioning steel bar positioning device includes a steel bar piercing hydraulic system 12, and the hydraulic drive part of the piercing hydraulic system is fixed to the tensioning steel bar. connect.
Claims (5)
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| CN201520095771.3U CN204455862U (en) | 2015-02-10 | 2015-02-10 | A kind of steel box-girder seam angle rackwork |
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| CN201520095771.3U CN204455862U (en) | 2015-02-10 | 2015-02-10 | A kind of steel box-girder seam angle rackwork |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735134A (en) * | 2016-03-17 | 2016-07-06 | 中交第二航务工程局有限公司 | Temporary tensioning method for stub matching prefabricated box girders |
| CN106835997A (en) * | 2017-03-21 | 2017-06-13 | 中国葛洲坝集团第二工程有限公司 | Steel box-girder lifts interim accurate positioning device and localization method |
| CN109440648A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | Double wet seam precast segment bridge assembly LFM signal devices |
-
2015
- 2015-02-10 CN CN201520095771.3U patent/CN204455862U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735134A (en) * | 2016-03-17 | 2016-07-06 | 中交第二航务工程局有限公司 | Temporary tensioning method for stub matching prefabricated box girders |
| CN105735134B (en) * | 2016-03-17 | 2017-05-17 | 中交第二航务工程局有限公司 | Temporary tensioning method for stub matching prefabricated box girders |
| CN106835997A (en) * | 2017-03-21 | 2017-06-13 | 中国葛洲坝集团第二工程有限公司 | Steel box-girder lifts interim accurate positioning device and localization method |
| CN109440648A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | Double wet seam precast segment bridge assembly LFM signal devices |
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Granted publication date: 20150708 |