阅读说明：本技术 一种扣塔偏位监测装置 (Detain tower off normal monitoring devices ) 是由 彭浩 郑雪玉 郭法旺 周以林 卞晓卫 易伟 于 2020-05-20 设计创作，主要内容包括：本发明提供了一种扣塔偏位监测装置,包括垂直在基座上的扣塔支柱；在扣塔支柱的轴心线上有铟钢丝,扣塔支柱顶端固定有坐标仪,坐标仪上方固定有浮筒,铟钢丝顶端接于浮筒底部,铟钢丝垂直向下穿过坐标仪；坐标仪电气连接于蓄电池。本发明铟钢丝处于保护管内,其与浮筒连接后一直处于垂直张紧状态,属于独立工作系统,不受扣塔自身弹性变形、弯曲、边界、外部风雨等因素影响,同时垂线坐标仪与扣塔结构同步变形,因此可以准确获取扣塔顶部中心偏移量,测量精度高,可靠性和耐久性好。(The invention provides a buckling tower deviation monitoring device, which comprises a buckling tower support vertical to a base; an indium steel wire is arranged on the axis of the buckling tower support, a coordinatograph is fixed at the top end of the buckling tower support, a floating barrel is fixed above the coordinatograph, the top end of the indium steel wire is connected to the bottom of the floating barrel, and the indium steel wire vertically penetrates through the coordinatograph downwards; the coordinate device is electrically connected to the battery. The indium steel wire is positioned in the protective pipe, is always in a vertical tensioning state after being connected with the buoy, belongs to an independent working system, is not influenced by factors such as elastic deformation, bending, boundary, external wind and rain of the buckling tower and the like, and simultaneously the plumb line coordinatograph and the buckling tower structure synchronously deform, so that the central offset of the top of the buckling tower can be accurately obtained, the measurement precision is high, and the reliability and the durability are good.)

1. The utility model provides a detain tower off normal monitoring devices, includes perpendicular knot tower pillar (5) on base (1), its characterized in that: an indium steel wire (3) is arranged on the axis of the buckling tower support post (5), a coordinatograph (8) is fixed at the top end of the buckling tower support post (5), a floating barrel (9) is fixed above the coordinatograph (8), the top end of the indium steel wire (3) is connected to the bottom of the floating barrel (9), and the indium steel wire (3) vertically penetrates through the coordinatograph (8) downwards; the coordinate device (8) is electrically connected to the battery (11).

2. The buckle tower deviation monitoring device according to claim 1, wherein: detain tower pillar (5) top and keep flat and be fixed with bottom plate (6), still be fixed with safety cover (12) on bottom plate (6) and constitute the enclosure space, coordinate appearance (8), flotation pontoon (9), battery (11) are all fixed in safety cover (12).

3. The buckle tower deviation monitoring device according to claim 2, wherein: a mounting bracket (7) is arranged in the protective cover (12), the coordinate instrument (8) and the buoy (9) are fixed on the mounting bracket (7), and the storage battery (11) is fixed on the bottom plate (6).

4. The buckle tower deviation monitoring device according to claim 1, wherein: the coordinate apparatus (8) is also connected to a data acquisition and transmission module (10).

5. The buckle tower deviation monitoring device according to claim 1 or 2, wherein: the solar energy collecting device is characterized in that the storage battery (11) is connected with a solar panel (13), and the solar panel (13) is fixed to the top of the protective cover (12).

6. The buckle tower deviation monitoring device according to claim 4, wherein: the coordinate instrument (8) is also connected with an alarm (14).

7. The buckle tower deviation monitoring device according to claim 1, wherein: the buoy (9) is communicated with the indium steel wire (3) and is filled with hydraulic oil to enable the indium steel wire (3) to be tensioned.

8. The buckle tower deviation monitoring device according to claim 1, wherein: and an anchor head (4) is fixed at the lower end of the indium steel wire (3).

9. The buckle tower deviation monitoring device according to claim 1, wherein: a protection tube (2) is arranged on the axis of the buckling tower support (5) and is vertically fixed on the base (1), and the indium steel wire (3) is positioned in the protection tube (2).

Technical Field

The invention relates to a buckling tower deviation monitoring device.

Background

At present, the common inclined pull buckling method for arch bridge construction in China needs to arrange an arch rib in a state that a stayed-cable buckling rope is used for pulling a cantilever, namely, one end of the buckling rope is fixedly connected to the arch rib, the other end of the buckling rope is anchored on a buckling tower, then a back rope is arranged on the other side of the buckling tower to balance the horizontal force of the buckling rope, and the back rope is anchored in a ground anchor, or a steering pulley is adopted, and the buckling and the back ropes are integrated. In short, the buckling cable connects the main arch and the buckling tower, the back cable connects the buckling tower and the ground anchor, when the horizontal force generated by the buckling and the back cable is unbalanced, the buckling tower can generate the deviation phenomenon, which is unfavorable for the line shape and the structural stress of the bridge, and the influence is eliminated or reduced as much as possible in the construction process.

In the construction stage, the cable force of the buckle and the back cable is a process of dynamic change along with forward movement of the hanging basket and pouring of the main arch, so that the deviation condition of the buckle tower is tracked and monitored in real time along with the construction progress, and an alarm can be given in time when abnormality occurs, so that on-site adjustment and correction are facilitated, and the engineering safety is ensured.

The traditional method for observing the deviation of the buckled tower is to use a total station and adopt an intersection method or a polar coordinate method for measurement, but the method reflects the post result rather than the whole construction process, and meanwhile, the field observation and data processing are long in time consumption and large in labor investment. In addition, the laser principle or other devices are utilized, so that the actual use effect is poor. The methods are greatly influenced by external environmental conditions, the observation precision is difficult to guarantee, the timeliness is poor, and automatic observation is difficult to realize.

The tower frame offset automatic measurement alarm system and method jointly developed by Guizhou bridge construction group limited company and Liuzhou Qian bridge engineering material limited company (published as CN109341662A) is characterized in that a specially-made high-strength steel wire is fixed on the edge of the top of a buckling tower, then the steel wire is connected to a heavy hammer to be tensioned, and the forward bridge displacement of the tower top is calculated by observing the change of the length of the steel wire, so that the automatic observation and alarm functions are realized. However, this system still has some disadvantages:

(1) the buckling tower is assumed to be a rigid body and does not generate elastic deformation, so the total length of the buckling tower is assumed to be a fixed constant in calculation, and actually, the buckling tower is generally up to dozens of meters, the length of the buckling tower can be correspondingly changed after the buckling tower is deformed, and if the buckling tower still participates in calculation according to the total length of the buckling tower in the original state, a certain deviation exists in the result.

(2) The method can only monitor the buckling tower offset in one specified direction on the plane, and generally sets the offset in the forward bridge direction according to the focus of attention, so that the offset in the transverse bridge direction on the plane cannot be monitored, namely, whether the buckling tower has a torsion condition cannot be reflected. If the function is realized, the whole set of equipment needs to be added separately, which is not economical.

(3) A specially-made high-strength steel wire of one of the key components is in a natural environment, although the steel wire is suspended and tensioned by a heavy hammer, the whole suspension length is large, so that certain natural droop exists, and meanwhile, when wind power is strong, the steel wire can swing or shake, so that an observation result is influenced to a certain extent.

(4) Due to the existence of special parts, the whole system has overhigh manufacturing cost and about 80 ten thousands of market price, and is not beneficial to popularization and application.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a buckling tower deviation monitoring device, which is not affected by the elastic deformation, bending, boundary, external wind and rain of the buckling tower itself, and can deform synchronously with the buckling tower, so that the central offset of the top of the buckling tower can be accurately obtained, and the device has high measurement accuracy, good reliability and durability.

The invention is realized by the following technical scheme.

The invention provides a buckling tower deviation monitoring device which comprises a buckling tower support vertical to a base; an indium steel wire is arranged on the axis of the buckling tower support, a coordinatograph is fixed at the top end of the buckling tower support, a floating barrel is fixed above the coordinatograph, the top end of the indium steel wire is connected to the bottom of the floating barrel, and the indium steel wire vertically penetrates through the coordinatograph downwards; the coordinate device is electrically connected to the battery.

Detain tower pillar top and keep flat and be fixed with the bottom plate, still be fixed with the safety cover on the bottom plate and constitute the enclosure space, coordinate appearance, flotation pontoon, battery are all fixed in the safety cover.

A mounting bracket is arranged in the protective cover, the coordinatograph and the buoy are fixed on the mounting bracket, and the storage battery is fixed on the bottom plate.

The coordinate machine is also connected to the data acquisition and transmission module.

The battery is connected with solar panel, and solar panel fixes at the safety cover top.

The coordinate instrument is also connected with an alarm.

The buoy is communicated with the indium steel wire and is filled with hydraulic oil to enable the indium steel wire to be tensioned.

And an anchor head is fixed at the lower end of the indium steel wire.

A protection tube is arranged on the axis of the buckling tower support and is vertically fixed on the base, and the indium steel wire is positioned in the protection tube.

The invention has the beneficial effects that: the indium steel wire is positioned in the protective pipe, is always in a vertical tensioning state after being connected with the buoy, belongs to an independent working system, is not influenced by factors such as elastic deformation, bending, boundary, external wind and rain of the buckling tower and the like, and simultaneously the vertical coordinatograph and the buckling tower structure deform synchronously, so that the central offset of the top of the buckling tower can be accurately obtained, the measurement precision is high, and the reliability and the durability are good; the cost can be reduced by 45%, the daily human input can be reduced by 3 persons, the field installation is convenient, the data acquisition, the calculation analysis and the early warning forecast can be automated, the real-time monitoring requirement is met, the safety of the whole construction process is ensured, and the working strength is reduced; the technology has good economic benefit, strong applicability and high popularization and application value.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: 1-base, 2-protective tube, 3-indium steel wire, 4-anchor head, 5-button tower support, 6-bottom plate, 7-mounting support, 8-coordinate instrument, 9-float bowl, 10-data acquisition and transmission module, 11-storage battery, 12-protective cover, 13-solar panel, 14-alarm.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

A buckling tower deviation monitoring device as shown in fig. 1 comprises a buckling tower support 5 vertical to a base 1; an indium steel wire 3 is arranged on the axis of the buckling tower support 5, a coordinatograph 8 is fixed at the top end of the buckling tower support 5, a floating barrel 9 is fixed above the coordinatograph 8, the top end of the indium steel wire 3 is connected to the bottom of the floating barrel 9, and the indium steel wire 3 vertically penetrates through the coordinatograph 8 downwards; the coordinate system 8 is electrically connected to the battery 11.

The top of the buckling tower support 5 is flatly fixed with a bottom plate 6, a protective cover 12 is further fixed on the bottom plate 6 to form a closed space, and the coordinatograph 8, the buoy 9 and the storage battery 11 are all fixed in the protective cover 12.

A mounting bracket 7 is arranged in the protective cover 12, the coordinate instrument 8 and the buoy 9 are fixed on the mounting bracket 7, and the storage battery 11 is fixed on the bottom plate 6.

The coordinate machine 8 is also connected to a data acquisition and transmission module 10.

The storage battery 11 is connected with a solar panel 13, and the solar panel 13 is fixed on the top of the protective cover 12.

Also connected to the coordinate apparatus 8 is an alarm 14.

The buoy 9 is communicated with the indium steel wire 3 and is filled with hydraulic oil to enable the indium steel wire 3 to be tensioned.

An anchor head 4 is fixed at the lower end of the indium steel wire 3.

A protection tube 2 is vertically fixed on the base 1 on the axis of the buckling tower support 5, and an indium steel wire 3 is positioned in the protection tube 2.

The structure installation process of the invention comprises the following steps:

before detaining tower concrete base 1 and pouring, pre-buried protection tube 2 in base center department earlier, protection tube 2 is galvanized steel pipe or PVC pipe or PE pipe, then follows and detain tower installation progress, connects gradually protection tube 2 to detaining the top of the tower. With 3 one end of indium steel wire and anchor head 4 fixed connection, then transfer to the socle along protection tube 2, stretch into the socle with the grout pipe and carry out the grout consolidation, ensure that anchor head 4 stabilizes in base 1. Install bottom plate 6 additional at knot tower pillar 5 top, then pass through the bolt fastening with installing support 7 on bottom plate 6, place perpendicular coordinatograph 8 and flotation pontoon 9 on the installing support in proper order, then pass the middle hole of perpendicular coordinatograph 8 with indium steel wire 3 and be connected with the dead lever of flotation pontoon 9, inject hydraulic oil into flotation pontoon 9, until the complete tensioning of indium steel wire 3, then fix flotation pontoon 9. The position of the vertical coordinators 8 is continuously adjusted so that the indium wire 3 is substantially in the middle of the vertical coordinators 8, and then the vertical coordinators 8 are fixed. And installing the data acquisition and transmission module 10, and fixing the data acquisition and transmission module after normal debugging. Then, the battery 11 is mounted, the protective cover 12 is covered, the battery cable is securely connected to the solar panel 13, and the protective cover 12 is fixed to the base plate 6 by bolts. Finally, the alarm 14 is installed until the installation is completed.

In a specific usage scenario, one practical usage process of the present invention:

the first step is as follows: according to the buckling tower offset displacement range calculated by simulation analysis, the plumb line coordinatograph and the protection tube are customized, the measuring range, the precision and the stability of the plumb line coordinatograph are ensured to meet the requirements, and the diameter of the protection tube meets the requirement that the indium steel wire can move freely. Meanwhile, the sizes of the indium steel wire and the buoy are determined according to the height of the buckling tower, and the mounting bracket and the protective cover are automatically processed.

The second step is that: pre-buried first section protection tube before detaining tower concrete foundation and pouring, then follow closely and detain tower installation progress, from up down, connect gradually each section protection tube of installation, the in-process should pass through the clamp with the protection tube and fix on detaining the tower, ensures that it is firm, does not produce big skew.

The third step: mounting plate and support place plumb line coordinator and flotation pontoon on the support tentatively, then pass the bottom plate in proper order with the indium steel wire and in the middle of the bottom plate hole and perpendicular line hole after be connected with the flotation pontoon dead lever, the indium steel wire is the lax state this moment, and the indium steel wire of bending is contraindicated simultaneously.

The fourth step: and injecting hydraulic oil into the buoy until the indium steel wire is completely tensioned, adjusting the position of the vertical coordinatograph to enable the indium steel wire to be positioned in the middle of the vertical coordinatograph, and adjusting the level of the vertical coordinatograph when X, Y direction measuring values of the vertical coordinatograph are basically the same, and then fixing.

The fifth step: and finally, installing a data acquisition module, a transmission and power supply module and a lightning protection module. Install the safety cover additional, fixed top solar panel, whether the inspection line connection is normal, the normal back of debugging, fixed safety cover, installation siren, the installation finishes.

And a sixth step: after the mounting is completed, a reference value X is obtained₀、Y₀Each time the value X is observed_i、Y_iAccording to the formula X_{Shifting in the direction of the bridge}＝X_i-X₀、Y_{Transverse direction of bridge}＝Y_i-Y₀I.e. byThe offset of the deduction tower can be calculated. When the calculated value is larger than the early warning value, the alarm gives an alarm, and corresponding adjustment can be carried out in site construction, so that safety is ensured.