CN116516833A - Method for adjusting horizontal force of buckling tower of cable-stayed buckling system - Google Patents
Method for adjusting horizontal force of buckling tower of cable-stayed buckling system Download PDFInfo
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling 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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
本发明关于一种斜拉扣挂系统扣塔水平力调节方法，扣塔的塔架上设有扣索鞍，通长式扣索在所述扣索鞍处转向，朝向拱肋侧的所述通长式扣索的水平角β小于朝向扣地锚侧的所述通长式扣索的水平角α，在所述扣索鞍处设置至少一根配索，所述配索连接扣地锚，所述配索的水平分力被配置为等于所述通长式扣索的两侧水平分力之差。本发明所述的一种斜拉扣挂系统扣塔水平力调节方法，可对所述塔架受到的水平力进行调整，所述通长式扣索和所述配索同步张拉，使所述塔架水平力保持平衡，减小所述塔架偏位，提高所述塔架的安全性和稳定性，并减少对拱肋安装精度的影响。
The invention relates to a method for adjusting the horizontal force of a buckle tower of a cable-stayed buckle-hanging system. A buckle saddle is provided on the tower frame of the buckle tower, and the full-length buckle cable is turned at the buckle saddle, toward the side of the arch rib. The horizontal angle β of the full-length buckle cable is smaller than the horizontal angle α of the full-length buckle cable towards the ground anchor side, and at least one distribution cable is arranged at the saddle of the buckle cable, and the distribution cable is connected to the ground anchor , the horizontal component force of the distribution cable is configured to be equal to the difference between the horizontal component forces on both sides of the full-length buckle cable. The method for adjusting the horizontal force of the buckle tower of a cable-stayed buckle-hanging system according to the present invention can adjust the horizontal force received by the tower, and the full-length buckle cable and the matching cable are synchronously stretched, so that the The horizontal force of the tower is kept balanced, the deviation of the tower is reduced, the safety and stability of the tower are improved, and the influence on the installation accuracy of the arch rib is reduced.
Description
技术领域technical field
本发明涉及拱桥斜拉扣挂施工技术领域，特别是一种斜拉扣挂系统扣塔水平力调节方法。The invention relates to the technical field of cable-stayed buckle-hanging construction of arch bridges, in particular to a method for adjusting the horizontal force of a buckle tower of a cable-stayed buckle-hanging system.
背景技术Background technique
在拱桥无支架悬臂拼装的施工过程中，扣索根据拱桥的结构形式不同以及斜拉扣挂系统的布置不同，可分为通长式扣索和断开式扣索，对于通长式扣索，扣索从扣地锚出发，穿过扣塔塔架，通过扣索鞍转向，牵引至拱肋节段锚固端，然后在扣地锚处张拉。因扣索在塔架两侧水平角不同，造成塔架两侧所受的水平力不同，造成塔架出现偏移，影响扣塔结构安全以及拱肋节段的安装精度。In the construction process of the cantilever assembly of the arch bridge without supports, the buckle cables can be divided into full-length buckle cables and disconnected buckle cables according to the different structural forms of the arch bridge and the different layouts of the cable-stayed buckle-hanging systems. For the full-length buckle cables , the buckle cable starts from the buckle ground anchor, passes through the buckle tower tower, turns through the buckle cable saddle, is pulled to the anchor end of the arch rib segment, and then tensioned at the buckle ground anchor. Due to the different horizontal angles of the buckle cables on both sides of the tower, the horizontal forces on both sides of the tower are different, causing the tower to deviate, which affects the safety of the buckle tower structure and the installation accuracy of the arch rib segment.
发明内容Contents of the invention
本发明的目的在于：针对现有技术存在的在拱桥无支架悬臂拼装的施工过程中，扣索在塔架两侧水平角不同，造成塔架两侧所受的水平力不同，造成塔架出现偏移，影响扣塔结构安全以及拱肋节段的安装精度的问题，提供一种斜拉扣挂系统扣塔水平力调节方法。The purpose of the present invention is to: in the construction process of arch bridge without support cantilever assembly existing in the prior art, the horizontal angles of the buckle cables on both sides of the tower are different, resulting in different horizontal forces on the two sides of the tower, causing the tower to appear Offset, which affects the safety of the buckle tower structure and the installation accuracy of the arch rib segment, provides a method for adjusting the horizontal force of the buckle tower of the cable-stayed buckle-hanging system.
为了实现上述目的，本发明采用的技术方案为：In order to achieve the above object, the technical scheme adopted in the present invention is:
一种斜拉扣挂系统扣塔水平力调节方法，扣塔的塔架上设有扣索鞍，通长式扣索在所述扣索鞍处转向，朝向拱肋侧的所述通长式扣索的水平角β小于朝向扣地锚侧的所述通长式扣索的水平角α，在所述扣索鞍处设置至少一根配索，所述配索连接扣地锚，所述配索的水平分力被配置为等于所述通长式扣索的两侧水平分力之差。A method for adjusting the horizontal force of a buckle tower of a cable-stayed buckle-hanging system. The tower frame of the buckle tower is provided with a buckle saddle. The horizontal angle β of the buckle cable is smaller than the horizontal angle α of the full-length buckle cable towards the ground anchor side, and at least one distribution cable is arranged at the saddle of the buckle cable, and the distribution cable is connected to the ground anchor. The horizontal component force of the distribution cable is configured to be equal to the difference between the horizontal component forces on both sides of the full-length buckle cable.
采用本发明所述的一种斜拉扣挂系统扣塔水平力调节方法，可对所述塔架受到的水平力进行调整，所述通长式扣索和所述配索同步张拉，使所述塔架水平力保持平衡，减小所述塔架偏位，提高所述塔架的安全性和稳定性，并减少对拱肋安装精度的影响。The method for adjusting the horizontal force of the buckle tower of a cable-stayed buckle-hanging system according to the present invention can adjust the horizontal force received by the tower, and the full-length buckle cable and the matching cable are synchronously stretched, so that The horizontal force of the tower is kept balanced, the deflection of the tower is reduced, the safety and stability of the tower are improved, and the influence on the installation accuracy of the arch rib is reduced.
作为本发明优选地技术方案，所述扣索鞍上设有转向部件，所述通长式扣索绕过所述转向部件。As a preferred technical solution of the present invention, a steering component is provided on the buckle saddle, and the full-length buckle bypasses the steering component.
作为本发明进一步优选地技术方案，所述转向部件包括两个，且分别设置所述扣索鞍顶部的两端，所述通长式扣索依次绕过两个所述转向部件。As a further preferred technical solution of the present invention, the steering component includes two, and the two ends of the top of the buckle saddle are respectively provided, and the full-length buckle bypasses the two steering components in turn.
作为本发明进一步优选地技术方案，每个所述转向部件并排设有若干个定滑轮组，每个所述定滑轮组对应一根所述通长式扣索。As a further preferred technical solution of the present invention, each of the steering components is provided with several fixed pulley blocks side by side, and each of the fixed pulley blocks corresponds to one of the full-length buckle cables.
作为本发明进一步优选地技术方案，每个所述定滑轮组包括多个定滑轮，且每个所述定滑轮组中的所述定滑轮沿渐变线设置，所述通长式扣索接触至少一个所述定滑轮。As a further preferred technical solution of the present invention, each of the fixed pulley sets includes a plurality of fixed pulleys, and the fixed pulleys in each of the fixed pulley sets are arranged along a gradient line, and the full-length buckle cable contacts at least one of the fixed pulleys. Set the pulley.
作为本发明进一步优选地技术方案，所述配索绕过所述转向部件。As a further preferred technical solution of the present invention, the distribution cable bypasses the steering component.
作为本发明优选地技术方案，所述扣索鞍上设有张拉锚固部件，所述张拉锚固部件连接所述配索。As a preferred technical solution of the present invention, a tension anchoring component is provided on the buckle cable saddle, and the tension anchoring component is connected to the distribution cable.
作为本发明进一步优选地技术方案，所述张拉锚固部件包括座体，所述座体连接于所述扣索鞍，所述座体上设有锚固梁，所述锚固梁上设置张拉器，所述张拉器连接并张拉所述配索。As a further preferred technical solution of the present invention, the tension anchoring component includes a seat body, the seat body is connected to the buckle saddle, an anchor beam is arranged on the seat body, and a tensioner is arranged on the anchor beam , the tensioner connects and tensions the distribution cable.
作为本发明优选地技术方案，所述斜拉扣挂系统扣塔水平力调节方法包括以下步骤：As a preferred technical solution of the present invention, the method for adjusting the horizontal force of the buckle tower of the cable-stayed buckle-hanging system includes the following steps:
S1、对斜拉扣挂系统进行设计并计算，得到每个拱肋节段对应的所述通长式扣索的张拉力；S1. Design and calculate the cable-stayed buckle system, and obtain the tension force of the full-length buckle cable corresponding to each arch rib segment;
S2、通过所述通长式扣索在所述塔架的前后的水平角β和水平角α，分析所述塔架受到的不平衡水平力大小；S2. Analyzing the magnitude of the unbalanced horizontal force on the tower through the horizontal angle β and horizontal angle α of the full-length buckle cable at the front and back of the tower;
S3、针对每个拱肋节段的不平衡水平力，在所述扣索鞍处增加所述配索，计算所述配索张拉力，按每根所述配索受力8～10kN进行配置，确定所述配索的根数；S3. For the unbalanced horizontal force of each arch rib segment, add the distribution cables at the cable saddle, calculate the tension force of the distribution cables, and configure according to the force of each distribution cable is 8-10kN , to determine the root number of the cable;
S4、所述通长式扣索和所述配索同步张拉，使所述塔架水平力保持平衡。S4. The full-length buckle cable and the supporting cable are tensioned synchronously, so that the horizontal force of the tower is kept in balance.
综上所述，由于采用了上述技术方案，本发明的有益效果是：In summary, owing to adopting above-mentioned technical scheme, the beneficial effect of the present invention is:
本发明所述的一种斜拉扣挂系统扣塔水平力调节方法，可对所述塔架受到的水平力进行调整，所述通长式扣索和所述配索同步张拉，使所述塔架水平力保持平衡，减小所述塔架偏位，提高所述塔架的安全性和稳定性，并减少对拱肋安装精度的影响。The method for adjusting the horizontal force of the buckle tower of a cable-stayed buckle-hanging system according to the present invention can adjust the horizontal force received by the tower, and the full-length buckle cable and the matching cable are synchronously stretched, so that the The horizontal force of the tower is kept balanced, the deviation of the tower is reduced, the safety and stability of the tower are improved, and the influence on the installation accuracy of the arch rib is reduced.
附图说明Description of drawings
图1为斜拉扣挂系统扣塔水平力调节示意图；Fig. 1 is a schematic diagram of adjusting the horizontal force of the buckle tower of the cable-stayed buckle-hanging system;
图2为图1中扣索鞍处的放大示意图。Fig. 2 is an enlarged schematic diagram of the buckle saddle in Fig. 1 .
图中标记：1-扣索鞍，2-张拉锚固部件，21-锚固梁，22-张拉器，3-转向部件，31-定滑轮组，4-通长式扣索，5-配索，6-塔架。Markings in the figure: 1-cable saddle, 2-tension anchoring parts, 21-anchor beam, 22-tensioner, 3-steering components, 31-fixed pulley block, 4-through-length buckle cable, 5-supply cable , 6-pylon.
具体实施方式Detailed ways
下面结合附图，对本发明作详细的说明。Below in conjunction with accompanying drawing, the present invention is described in detail.
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
实施例1Example 1
如图1和图2所示，本发明所述的一种斜拉扣挂系统扣塔水平力调节方法，包括以下步骤：As shown in Figures 1 and 2, a method for adjusting the horizontal force of a buckle tower of a cable-stayed buckle-hanging system according to the present invention comprises the following steps:
S1、对斜拉扣挂系统进行设计并计算，得到每个拱肋节段对应的通长式扣索4的张拉力。S1. Design and calculate the cable-stayed buckle system, and obtain the tension force of the full-length buckle cable 4 corresponding to each arch rib segment.
S2、如图1所示，在扣塔的塔架6上设有扣索鞍1，所述通长式扣索4在所述扣索鞍1处转向，朝向拱肋侧B的所述通长式扣索4的水平角β小于朝向扣地锚侧A的所述通长式扣索4的水平角α，通过所述通长式扣索4在所述塔架6的前后的水平角β和水平角α，分析所述塔架6受到的不平衡水平力大小。S2, as shown in Figure 1, a buckle saddle 1 is provided on the tower frame 6 of the buckle tower, and the full-length buckle cable 4 is turned at the buckle saddle 1, towards the through-hole of the arch rib side B. The horizontal angle β of the long cable 4 is smaller than the horizontal angle α of the full-length cable 4 facing the ground anchor side A, through the horizontal angle of the full-length cable 4 at the front and back of the tower 6 β and horizontal angle α, analyze the unbalanced horizontal force on the tower 6.
其中，所述扣索鞍1上设有一个张拉锚固部件2和两个转向部件3，两个所述转向部件3分别设置所述扣索鞍1顶部的两端，所述张拉锚固部件2设置在所述扣索鞍1顶部的中间，所述通长式扣索4依次绕过两个所述转向部件3，且穿过所述张拉锚固部件2底部。Wherein, the buckle saddle 1 is provided with a tension anchoring part 2 and two steering parts 3, and the two steering parts 3 are respectively provided with the two ends of the top of the buckle saddle 1, and the tension anchoring parts 2 is arranged in the middle of the top of the buckle saddle 1, and the long buckle 4 passes around the two steering parts 3 in turn and passes through the bottom of the tension anchoring part 2.
具体地，如图2所示，每个所述转向部件3并排设有若干个定滑轮组31，每个所述定滑轮组31对应一根所述通长式扣索4，每个所述定滑轮组31包括多个定滑轮，且每个所述定滑轮组31中的所述定滑轮沿渐变线设置，所述通长式扣索4接触至少一个所述定滑轮；所述张拉锚固部件2包括座体，所述座体连接于所述扣索鞍1，所述座体上设有锚固梁21，所述锚固梁21上设置张拉器22。Specifically, as shown in FIG. 2 , each of the steering components 3 is provided with several fixed pulley blocks 31 side by side, and each of the fixed pulley blocks 31 corresponds to one of the full-length buckle cables 4 , and each of the fixed pulley blocks 31 includes a plurality of fixed pulleys, and the fixed pulleys in each of the fixed pulley sets 31 are arranged along the gradient line, and the long-length buckle cable 4 contacts at least one of the fixed pulleys; the tension anchoring component 2 includes A seat body, the seat body is connected to the buckle saddle 1 , an anchor beam 21 is arranged on the seat body, and a tensioner 22 is arranged on the anchor beam 21 .
S3、针对每个拱肋节段的不平衡水平力，在所述扣索鞍1处增加设置至少一根配索5，每根所述配索5的一端连接于所述张拉器22，每根所述配索5的另一端绕过扣地锚侧A对应的所述转向部件3后连接扣地锚，计算所述配索5张拉力，所有所述配索5的水平分力之和被配置为等于所述通长式扣索4的两侧水平分力之差，然后按每根所述配索5受力8～10kN进行配置，确定所述配索5的具体的根数。S3. For the unbalanced horizontal force of each arch rib segment, add at least one distribution cable 5 at the buckle saddle 1, one end of each distribution cable 5 is connected to the tensioner 22, The other end of each distribution cable 5 bypasses the steering part 3 corresponding to the ground anchor side A and connects to the ground anchor, calculates the tension of the 5 distribution cables, and the horizontal component force of all the distribution cables 5 The sum is configured to be equal to the difference between the horizontal force components on both sides of the full-length buckle cable 4, and then each of the distribution cables 5 is configured according to a force of 8-10kN to determine the specific number of the distribution cables 5 .
S4、所述通长式扣索4和所述配索5同步张拉，使所述塔架6水平力保持平衡。S4. The full-length buckle cable 4 and the distribution cable 5 are tensioned synchronously, so that the horizontal force of the tower 6 is kept in balance.
其中，所述通长式扣索4在扣地锚处进行张拉，所述配索5则通过所述张拉器22进行张拉。Wherein, the full-length buckle cable 4 is tensioned at the buckle ground anchor, and the distribution rope 5 is tensioned by the tensioner 22 .
本实施例所述的一种斜拉扣挂系统扣塔水平力调节方法，可对所述塔架6受到的水平力进行调整，所述通长式扣索4和所述配索5同步张拉，使所述塔架6水平力保持平衡，减小所述塔架6偏位，提高所述塔架6的安全性和稳定性，并减少对拱肋安装精度的影响。The method for adjusting the horizontal force of the buckle tower of a cable-stayed buckle-hanging system described in this embodiment can adjust the horizontal force received by the tower frame 6, and the full-length buckle cable 4 and the distribution cable 5 are synchronously stretched. pull, to keep the horizontal force of the tower 6 in balance, reduce the deflection of the tower 6, improve the safety and stability of the tower 6, and reduce the impact on the installation accuracy of the arch rib.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.
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Cited By (3)
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| CN117488698A (en) * | 2023-12-20 | 2024-02-02 | 广西路桥工程集团有限公司 | Prefabricated tower unit structure and tower assembly method |
| CN119640690A (en) * | 2024-12-30 | 2025-03-18 | 中铁大桥局集团有限公司 | Cable hanging construction method for steel truss arch bridge sling tower |
| CN119670200A (en) * | 2024-11-29 | 2025-03-21 | 中国建筑第六工程局有限公司 | A method for calculating and arranging the optimal amount of back cables in a cable-stayed buckle system |
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| CN117488698A (en) * | 2023-12-20 | 2024-02-02 | 广西路桥工程集团有限公司 | Prefabricated tower unit structure and tower assembly method |
| CN119670200A (en) * | 2024-11-29 | 2025-03-21 | 中国建筑第六工程局有限公司 | A method for calculating and arranging the optimal amount of back cables in a cable-stayed buckle system |
| CN119640690A (en) * | 2024-12-30 | 2025-03-18 | 中铁大桥局集团有限公司 | Cable hanging construction method for steel truss arch bridge sling tower |
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