CN204199188U - A kind of head tower vertical turning lifting mechanism - Google Patents
A kind of head tower vertical turning lifting mechanism Download PDFInfo
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- CN204199188U CN204199188U CN201420639370.5U CN201420639370U CN204199188U CN 204199188 U CN204199188 U CN 204199188U CN 201420639370 U CN201420639370 U CN 201420639370U CN 204199188 U CN204199188 U CN 204199188U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 102
- 239000010959 steel Substances 0.000 claims abstract description 102
- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
本实用新型涉及钢塔竖转施工技术领域，公开了一种钢塔竖转提升机构，包括下端与桥墩面铰接的钢塔，还包括拉压杆，所述的拉压杆的下端与钢塔的下端铰接，钢塔的中间设有连接座，连接座与钢塔螺栓连接，连接座与拉压杆上端之间设有承重拉索，桥墩面上位于钢塔的两侧分别设有拉索固定座，拉索固定座上设有锚箱，其中远离钢塔的拉索固定座上的锚箱内设有牵引拉索，牵引拉索的外端通过拉索接头与拉压杆上端转动连接，其中靠近钢塔的拉索固定座上的锚箱内设有反作用拉索，反作用拉索通过连接头与连接座转动连接，锚箱与拉索固定座之间设有锚梁。因此，本实用新型具有使用安全、方便，钢塔竖转提升过程中受力稳定的有益效果。
The utility model relates to the technical field of steel tower vertical rotation construction, and discloses a steel tower vertical rotation lifting mechanism, which includes a steel tower whose lower end is hinged with the bridge pier surface, and also includes tension and compression rods, the lower ends of which are connected to the steel tower The lower end of the steel tower is hinged. There is a connecting seat in the middle of the steel tower. The connecting seat is connected to the steel tower by bolts. There is a load-bearing cable between the connecting seat and the upper end of the tension and compression rod. Fixing seat, the cable fixing seat is provided with an anchor box, wherein the anchor box on the cable fixing seat far away from the steel tower is provided with a traction cable, and the outer end of the traction cable is connected to the upper end of the tension and compression rod through the cable joint. , wherein the anchor box on the cable fixing seat close to the steel tower is provided with a reaction cable, and the reaction cable is rotatably connected to the connection seat through a connector, and an anchor beam is arranged between the anchor box and the cable fixing seat. Therefore, the utility model has the beneficial effects of safe and convenient use, and stable stress during the vertical rotation and lifting of the steel tower.
Description
技术领域technical field
本实用新型涉及钢塔竖转施工技术领域，尤其涉及一种钢塔竖转提升机构。The utility model relates to the technical field of steel tower vertical rotation construction, in particular to a steel tower vertical rotation lifting mechanism.
背景技术Background technique
桥梁上需要安装钢塔，钢塔作为各种加强钢索的受力点，用于支撑整个桥梁，钢塔下端与桥墩面铰接，需要把钢塔竖转提升到竖直方向，传统的桥梁钢塔竖转施工，受力转换结构一般是两端都是钢结构的刚性拉压杆，拉杆和压杆都是与钢塔结构铰接连接。该方法虽能有效的完成钢塔竖转的受力转换，但存在以下缺点：刚性拉压杆在钢塔高度超过一定规模的结构中适用性不强；长度超过一定规模的钢结构拉杆安装时费时、费力，且安装质量不易保证；刚性拉杆自重大，材料用料多，成本高；设置多根拉杆时，不同拉杆很难保持长度一致，导致拉杆受力不均；多根拉杆受力不均时，不易调整；刚性拉杆受力过程中如控制不当会产生弯拉应力，自身结构容易破坏。由于上述缺点，使得钢塔竖转施工中刚性拉压杆结构受力复杂，施工困难，而且拉压杆易受到弯曲应力，导致形变，在钢塔竖转提升初期，拉杆、压杆对于竖直方向的分力很小，因此提升初期需要施加巨大的载荷，对加载设备要求很高。The steel tower needs to be installed on the bridge. The steel tower is used as the stress point of various reinforced steel cables to support the entire bridge. The lower end of the steel tower is hinged with the pier surface. For tower vertical rotation construction, the force transfer structure is generally a rigid tension and compression rod with steel structures at both ends, and both the tension and compression rods are hinged to the steel tower structure. Although this method can effectively complete the force conversion of the vertical rotation of the steel tower, it has the following disadvantages: the rigid tension and compression rods are not suitable for structures whose steel tower height exceeds a certain scale; It is time-consuming and laborious, and the installation quality is not easy to guarantee; rigid tie rods are self-heavy, with many materials and high cost; when multiple tie rods are installed, it is difficult to keep the same length of different tie rods, resulting in uneven force on the tie rods; It is not easy to adjust; if the rigid tie rod is not properly controlled during the stress process, it will produce bending and tensile stress, and its own structure is easy to damage. Due to the above shortcomings, the structure of the rigid tension and compression rods in the vertical rotation construction of the steel tower is subject to complex forces and difficult construction, and the tension and compression rods are easily subjected to bending stress, resulting in deformation. The component force in the direction is very small, so a huge load needs to be applied at the initial stage of lifting, and the requirements for loading equipment are very high.
实用新型内容Utility model content
本实用新型为了解决现有技术中上述问题，提供了一种使用安全、方便，钢塔竖转提升过程中受力稳定的钢塔竖转提升机构。In order to solve the above-mentioned problems in the prior art, the utility model provides a steel tower vertical rotation lifting mechanism which is safe and convenient to use and stable in force during the steel tower vertical rotation lifting process.
为了实现上述目的，本实用新型采用如下技术方案：In order to achieve the above object, the utility model adopts the following technical solutions:
一种钢塔竖转提升机构，包括下端与桥墩面铰接的钢塔，还包括拉压杆，所述的拉压杆的下端与钢塔的下端铰接，所述的钢塔的中间设有连接座，所述的连接座与钢塔螺栓连接，所述的连接座与拉压杆上端之间设有承重拉索，承重拉索的两端设有拉索接头，拉索接头与连接座、拉压杆之间转动连接，桥墩面上位于钢塔的两侧分别设有拉索固定座，拉索固定座上设有锚箱，其中远离钢塔的拉索固定座上的锚箱内设有牵引拉索，牵引拉索的外端通过拉索接头与拉压杆上端转动连接，其中靠近钢塔的拉索固定座上的锚箱内设有反作用拉索，反作用拉索通过连接头与连接座转动连接，锚箱与拉索固定座之间设有锚梁，所述锚梁的两端分别通过转轴与锚箱、拉索固定座转动连接，锚梁两端的转轴相互垂直。A steel tower vertical rotation lifting mechanism, which includes a steel tower whose lower end is hinged to the pier surface, and also includes a tension and compression rod. The lower end of the tension and compression rod is hinged to the lower end of the steel tower. Seat, the connecting seat is connected with steel tower bolts, a load-bearing cable is provided between the connecting seat and the upper end of the tension and compression rod, the two ends of the load-bearing cable are provided with cable joints, and the cable joints are connected to the connecting seat, The tension and compression rods are rotated and connected. On the pier surface, there are cable fixing seats on both sides of the steel tower. An anchor box is installed on the cable fixing seats. There is a traction cable, and the outer end of the traction cable is rotatably connected to the upper end of the tension and compression rod through the cable joint. The anchor box on the cable fixing seat close to the steel tower is provided with a reaction cable, and the reaction cable is connected to the The connecting seat is rotationally connected, and an anchor beam is arranged between the anchor box and the cable fixing seat.
拉压杆、承重拉索、钢塔构成三角形，拉压杆、牵引拉索、地面也构成三角形，这样就形成稳定的三角受力体系，牵引拉索提供牵引力，从而使得钢塔慢慢竖立起来，在竖立初期，承重拉索能为钢塔提供一个较大的竖直分力，从而有效的减小牵引拉索的初始拉力，在上升过程中，拉压杆的轴向正好为承重拉索、牵引拉索的合力方向，因此拉压杆只受到轴向的作用力，不会受到扭转作用力，拉压杆不会变形，钢塔上升过程中受力稳定，反作用拉索在钢塔上升过程中起到安全保护的作用，同时当杆塔上升到90度的时候，反作用拉索起到限位的作用，防止钢塔翻倒。The tension and compression rods, the load-bearing cables, and the steel tower form a triangle, and the tension and compression rods, the traction cables, and the ground also form a triangle, thus forming a stable triangular force system, and the traction cables provide traction, so that the steel tower is slowly erected , in the initial stage of erection, the load-bearing cable can provide a large vertical component force for the steel tower, thereby effectively reducing the initial tension of the traction cable. , The direction of the resultant force of the traction cable, so the tension and compression rods are only subjected to axial force and will not be subjected to torsional force, the tension and compression rods will not be deformed, the force is stable during the rising process of the steel tower, and the reaction cable rises in the steel tower During the process, it plays the role of safety protection. At the same time, when the tower rises to 90 degrees, the reaction cable plays the role of limit to prevent the steel tower from tipping over.
作为优选，所述的拉索固定座通过预埋钢板与桥墩面连接，所述的预埋钢板的下侧设有若干垂直的角钢，角钢、预埋钢板预埋入桥墩面的混凝土中，混凝土中位于预埋钢板的下方还设有若干精轧螺纹钢，拉索固定座与预埋钢板之间焊接连接，预埋钢板、拉索固定座底部设有连接孔，所述的精轧螺纹钢的上端穿过连接孔并通过螺母锁紧。牵引拉索牵引时，拉索固定座承受巨大的拉力，因此为了保证拉索固定座的稳定性，采用角钢、精轧螺纹钢作为预埋件，加强拉索固定座与预埋钢板之间的连接稳定性。As a preference, the cable fixing seat is connected to the bridge pier surface through a pre-embedded steel plate, a number of vertical angle steels are provided on the underside of the pre-embedded steel plate, and the angle steel and the pre-embedded steel plate are pre-embedded in the concrete of the bridge pier surface, and the concrete There are also several fine-rolled rebars located below the pre-embedded steel plates, and the cable fixing seats are welded and connected to the pre-embedded steel plates. The upper end passes through the connecting hole and is locked by a nut. When the cable is pulled, the cable fixing seat bears a huge tensile force. Therefore, in order to ensure the stability of the cable fixing seat, angle steel and precision-rolled rebar are used as embedded parts to strengthen the connection between the cable fixing seat and the embedded steel plate. Connection stability.
作为优选，所述的精轧螺纹钢的下端设有承拉套。承拉套能防止精轧螺纹钢从混凝土中脱出。As a preference, the lower end of the finish-rolled rebar is provided with a tension sleeve. The tension sleeve can prevent the finished rolled rebar from coming out of the concrete.
作为优选，所述的精轧螺纹钢、角钢之间还设有若干层水平的加强钢筋网，加强钢筋网与精轧螺纹钢、角钢的交接处通过钢丝连接。加强钢筋网能增大与混凝土的接触面，同时把精轧螺纹钢、角钢在混凝土中连接呈一体，整体更加稳定。As a preference, several layers of horizontal reinforcement meshes are arranged between the finish-rolled rebars and angle steels, and the junctions between the reinforcement meshes and the finish-rolled rebars and angle steels are connected by steel wires. The reinforced steel mesh can increase the contact surface with the concrete, and at the same time, the precision-rolled rebar and angle steel are connected into one body in the concrete, making the whole more stable.
因此，本实用新型具有使用安全、方便，钢塔竖转提升过程中受力稳定的有益效果。Therefore, the utility model has the beneficial effects of safe and convenient use, and stable stress during the vertical rotation and lifting of the steel tower.
附图说明Description of drawings
图1为本实用新型的一种结构示意图。Fig. 1 is a kind of structural representation of the utility model.
图2为图1中A处局部放大示意图。FIG. 2 is a partially enlarged schematic diagram of A in FIG. 1 .
图3为图1中B处局部放大示意图。FIG. 3 is a partially enlarged schematic diagram of part B in FIG. 1 .
图4为图1中C处局部放大示意图。FIG. 4 is a partially enlarged schematic diagram of a point C in FIG. 1 .
图5为图1中D处局部放大示意图。FIG. 5 is a partially enlarged schematic diagram of a part D in FIG. 1 .
图中：桥墩面1 钢塔2 拉压杆3 连接座4 承重拉索5 拉索接头6 拉索固定座7 锚箱8 牵引拉索9 反作用拉索10 锚梁11 预埋钢板12 角钢13 精轧螺纹钢14 螺母15 加强钢筋网16 承拉套17In the figure: pier surface 1 steel tower 2 tension and compression rod 3 connection seat 4 load-bearing cable 5 cable joint 6 cable fixing seat 7 anchor box 8 traction cable 9 reaction cable 10 anchor beam 11 embedded steel plate 12 angle steel 13 precision Rolled rebar 14 Nut 15 Reinforcing steel mesh 16 Tension sleeve 17
具体实施方式Detailed ways
下面结合附图和具体实施方式对本实用新型作进一步描述：Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:
如图1和图2所示的一种钢塔竖转提升机构，包括下端与桥墩面1铰接的钢塔2，还包括拉压杆3，拉压杆的下端与钢塔的下端铰接，钢塔2的中间设有连接座4，连接座4与钢塔螺栓连接，连接座4与拉压杆3上端之间设有承重拉索5，如图3和图4所示，承重拉索的两端设有拉索接头6，拉索接头与连接座、拉压杆之间转动连接，桥墩面1上位于钢塔的两侧分别设有拉索固定座7，拉索固定座上设有锚箱8，钢塔2右侧桥墩面上的拉索固定座7上的锚箱内设有牵引拉索9，牵引拉索9的外端通过拉索接头与拉压杆3上端转动连接，钢塔左侧桥墩面上的拉索固定座上的锚箱内设有反作用拉索10，反作用拉索10通过连接头与连接座4转动连接。A steel tower vertical rotation lifting mechanism as shown in Figure 1 and Figure 2, includes a steel tower 2 whose lower end is hinged to the pier surface 1, and also includes a tension and compression rod 3, the lower end of which is hinged with the lower end of the steel tower, and the steel tower A connecting seat 4 is arranged in the middle of the tower 2, and the connecting seat 4 is connected with steel tower bolts, and a load-bearing cable 5 is arranged between the connecting seat 4 and the upper end of the tension and compression rod 3, as shown in Figures 3 and 4, the load-bearing cable Cable joints 6 are provided at both ends, and the cable joints are rotationally connected with the connection seat and the tension and compression rods. The two sides of the steel tower on the pier surface 1 are respectively provided with cable fixing seats 7, and the cable fixing seats are provided with Anchor box 8, the anchor box on the cable fixing seat 7 on the pier surface on the right side of the steel tower 2 is provided with a traction cable 9, and the outer end of the traction cable 9 is rotatably connected with the upper end of the tension and compression rod 3 through the cable joint. The anchor box on the cable fixing seat on the pier surface on the left side of the steel tower is provided with a reaction cable 10, and the reaction cable 10 is rotatably connected with the connection seat 4 through the connection head.
如图5所示，锚箱8与拉索固定座之间设有锚梁11，锚梁的两端分别通过转轴与锚箱、拉索固定座转动连接，锚梁两端的转轴相互垂直，拉索固定座7通过预埋钢板12与桥墩面连接，预埋钢板12的下侧设有若干垂直的角钢13，角钢、预埋钢板预埋入桥墩面的混凝土中，混凝土中位于预埋钢板的下方还设有若干精轧螺纹钢14，精轧螺纹钢的下端设有承拉套17，本实施例中角钢有15根，呈3X5的阵列分布，精轧螺纹钢有8根，呈2X4的阵列分布，拉索固定座与预埋钢板之间焊接连接，预埋钢板、拉索固定座底部设有连接孔，精轧螺纹钢的上端穿过连接孔并通过螺母15锁紧；精轧螺纹钢、角钢之间还设有若干层水平的加强钢筋网16，加强钢筋网与精轧螺纹钢、角钢的交接处通过钢丝连接。As shown in Figure 5, an anchor beam 11 is arranged between the anchor box 8 and the cable fixing seat, and the two ends of the anchor beam are respectively connected to the anchor box and the cable fixing seat through rotating shafts. The cable fixing seat 7 is connected to the bridge pier surface through the embedded steel plate 12, and the lower side of the embedded steel plate 12 is provided with a number of vertical angle steels 13, and the angle steel and the embedded steel plate are embedded in the concrete of the bridge pier surface, and the concrete is located between the embedded steel plates. There are also some finish-rolled rebars 14 below, and the lower end of the finish-rolled rebars is provided with tension sleeves 17. In this embodiment, there are 15 angle steels, which are distributed in a 3X5 array, and there are 8 finish-rolled rebars, which are arranged in a 2X4 pattern. Array distribution, welded connection between the cable fixing seat and the embedded steel plate, the embedded steel plate and the cable fixing seat are provided with connecting holes at the bottom, the upper end of the fine-rolled rebar passes through the connecting hole and is locked by the nut 15; the fine-rolled thread There are also several layers of horizontal reinforcement mesh 16 between the steel and the angle steel, and the junctions between the reinforcement mesh and the finished rolled rebar and angle steel are connected by steel wires.
拉压杆、承重拉索、钢塔构成三角形，拉压杆、牵引拉索、地面也构成三角形，这样就形成稳定的三角受力体系，牵引拉索提供牵引力，从而使得钢塔慢慢竖立起来，在竖立初期，承重拉索能为钢塔提供一个较大的竖直分力，从而有效的减小牵引拉索的初始拉力，在上升过程中，拉压杆的轴向正好为承重拉索、牵引拉索的合力方向，因此拉压杆只受到轴向的作用力，不会受到扭转作用力，拉压杆不会变形，钢塔上升过程中受力稳定，反作用拉索在钢塔上升过程中起到安全保护的作用，同时当杆塔上升到90度的时候，反作用拉索起到限位的作用，防止钢塔翻倒。The tension and compression rods, the load-bearing cables, and the steel tower form a triangle, and the tension and compression rods, the traction cables, and the ground also form a triangle, thus forming a stable triangular force system, and the traction cables provide traction, so that the steel tower is slowly erected , in the initial stage of erection, the load-bearing cable can provide a large vertical component force for the steel tower, thereby effectively reducing the initial tension of the traction cable. , The direction of the resultant force of the traction cable, so the tension and compression rods are only subjected to axial force and will not be subjected to torsional force, the tension and compression rods will not be deformed, the force is stable during the rising process of the steel tower, and the reaction cable rises in the steel tower During the process, it plays the role of safety protection. At the same time, when the tower rises to 90 degrees, the reaction cable plays the role of limit to prevent the steel tower from tipping over.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639370.5U CN204199188U (en) | 2014-10-30 | 2014-10-30 | A kind of head tower vertical turning lifting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420639370.5U CN204199188U (en) | 2014-10-30 | 2014-10-30 | A kind of head tower vertical turning lifting mechanism |
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| CN204199188U true CN204199188U (en) | 2015-03-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464001A (en) * | 2015-11-05 | 2016-04-06 | 中铁十八局集团有限公司 | Construction method of backward vertical rotation of steel tower |
| CN110219249A (en) * | 2019-06-28 | 2019-09-10 | 中铁大桥局第七工程有限公司 | A kind of unidirectional vertical transfer device and its installation method for the oblique head tower of single limb |
| CN112376438A (en) * | 2020-11-24 | 2021-02-19 | 中铁大桥局集团有限公司 | Compression bar assembly for vertical rotation body and vertical rotation method thereof |
-
2014
- 2014-10-30 CN CN201420639370.5U patent/CN204199188U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464001A (en) * | 2015-11-05 | 2016-04-06 | 中铁十八局集团有限公司 | Construction method of backward vertical rotation of steel tower |
| CN110219249A (en) * | 2019-06-28 | 2019-09-10 | 中铁大桥局第七工程有限公司 | A kind of unidirectional vertical transfer device and its installation method for the oblique head tower of single limb |
| CN112376438A (en) * | 2020-11-24 | 2021-02-19 | 中铁大桥局集团有限公司 | Compression bar assembly for vertical rotation body and vertical rotation method thereof |
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Granted publication date: 20150311 |