CN207050709U - Straight line bridge cantilever method Arched Bridge Construction Linear continuously measures monitoring system - Google Patents
Straight line bridge cantilever method Arched Bridge Construction Linear continuously measures monitoring system Download PDFInfo
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- CN207050709U CN207050709U CN201720704492.1U CN201720704492U CN207050709U CN 207050709 U CN207050709 U CN 207050709U CN 201720704492 U CN201720704492 U CN 201720704492U CN 207050709 U CN207050709 U CN 207050709U
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Abstract
The utility model discloses a kind of straight line bridge cantilever method Arched Bridge Construction Linear continuously to measure monitoring system, including reflection target, installation column and laser ranging system；The invention also discloses the continuous monitoring method using above-mentioned monitoring system, first step is the reflection target of staff's regulation first and the 3rd reflecting target target position；Second step is to measure the second reflecting target target real offset using first laser range unit, and third step is that the levelness and the anglec of rotation of first laser range unit are checked on the basis of the second reflecting target target physical location；Then using the reflection target of second laser range unit measurement first and the 3rd reflecting target target real offset；In the walking process of Hanging Basket and when walking stops in place, Hanging Basket offset is continuously monitored by above-mentioned steps.The utility model is simple in construction, is convenient for measuring and can realize continuous monitoring in Hanging Basket walking process, suitable for the cantilever casting construction of most straight line bridges.
Description
Technical field
It the utility model is related to the monitoring system in technical field of bridge construction, more particularly to the construction of straight line bridge cantilever method
And monitoring method.
Background technology
Included with the working contents of Hanging Basket cantilever construction：Starting beam section (0# blocks) is poured in pier top, in starting beam section
Upper assembled outstanding filling Hanging Basket is simultaneously segmented cantilever beam section successively；End bay and mid-span are closed up.Supported below 0# blocks by pier stud, the pier stud is 0#
Block pier stud.
During using case-in-place cantilever method, No. 0 block beam section of pier top uses the formwork erection on bracket cast-in-place.Construction bracket can basis
Pier shaft height, cushion cap form and topographic features, are utilized respectively pier shaft, cushion cap or ground and support, set up Support bracket.Pier top beam
Beam section near section (i.e. so-called No. zero block) or pier top pours on bracket.Construction hanging basket is just assembled on beam section has been poured.
Hanging Basket is a load-bearing frame that can be slided or roll along back, and it anchors to be suspended on and constructed in beam section, hangs
The template of next beam section, reinforcing bar, prestress pipe can be carried out on basket to install, filling concrete and prestressed stretch-draw, grouting etc.
Operation.
After the circulation for completing a stage, Hanging Basket can move forward and fix, and carry out the cantilever grouting of next stage, so follow
Ring is until cantilever grouting is completed.
Hanging Basket includes multiple columns, pull bar, base longerons, guide rail and along direction across bridge（Perpendicular to bridge center line）Connection
Crossbeam between each column.During casting concrete beam section, it is necessary to anchored Hanging Basket and beam in Hanging Basket afterbody.Hanging Basket is walked
When, it can cause Hanging Basket that micro-locality skew is occurring up and down and on left and right directions because of factors such as deadweight, miniature deformation, anchorings.
Opened in place with dismounting, cantilever segment concreting, presstressed reinforcing steel because the linear monitoring of cradle construction includes Hanging Basket
Elevation, the measurement of coordinates of multiple steps such as front and rear are drawn, measurement frequency is high, data volume is big, measurement point position is more；Existing measurement needs
Professional, professional equipment, the survey sometime put in the case of construction environment is preferable are set, special due to measurement
Property, so labor intensity is big, task weight, and round-the-clock, all the period of time monitoring can not be accomplished.Construction experience shows that measurement frequency is got over
Height, period are closer, construction quality and security to ensureing boom segments.The utility model has accomplished round-the-clock, all the period of time
The requirement of Hanging Basket, cantilever construction section three-dimensional coordinate is measured, and is measured without professional, the equipment can be with automatic measurement benchmark control
The three-dimensional coordinate of point is made, workmen can move the first, the 3rd activity reflection target at any time, to the three-dimensional coordinate of tested point position
Measure, help to construct.
Utility model content
The purpose of this utility model is that providing a kind of straight line bridge cantilever method Arched Bridge Construction Linear simple in construction continuously measures
Monitoring system, it is convenient for measuring and continuous monitoring can be realized in Hanging Basket walking process.
To achieve the above object, straight line bridge cantilever method Arched Bridge Construction Linear of the present utility model, which continuously measures monitoring system, includes
Reflection target and the installation column that is fixedly connected on 0# blocks, installation column bridge suitable bridge to being located at 0# block pier studs on direction
Top；Installation column is interval with two along direction across bridge, and the respectively first installation column and second install column, the first installation
The distance of column and bridge center line is less than the second installation column；
First installation column is provided with first laser range unit, and the second installation column fills provided with second laser ranging
Put；First laser range unit and second laser range unit are located in same level, and second laser range unit, which is provided with, to be turned
Dynamic chassis；
Reflect target be provided with it is at least a set of, it is a set of reflection target include 3, respectively first reflection target, second reflection
Target and the 3rd reflection target；First reflection target is hung on a heel post of block Hanging Basket to be onstructed；Second reflection target is consolidated
Surely it is connected on block Hanging Basket crossbeam to be onstructed, the second reflecting target target is centrally located at vertical plane where bridge center line；3rd
Reflection target is hung on another heel post of block Hanging Basket to be onstructed；
First reflection target, the second reflection target and the 3rd reflection target are arranged in isosceles triangle, with along suitable bridge to away from 0#
The direction of block for it is preceding to, the second reflection target position in the position of front end 1/3 of residing construction section, the first reflection target and the 3rd anti-
Suitable bridge of the mark respectively positioned at bridge side web of shooting at the target locates ± 0.5 meter to the midline；
The first laser range unit and second laser range unit are connected with an electric control gear, and electric control gear connects
It is connected to audible-visual annunciator and power supply.
Protective cover is respectively connected with the first installation column and the second installation column.
The electric control gear is PLC or single-chip microcomputer.
A set of reflection target is respectively provided with the end bay Hanging Basket and mid-span Hanging Basket of 0# blocks both sides.
The invention also discloses the company that monitoring system is continuously measured using above-mentioned straight line bridge cantilever method Arched Bridge Construction Linear
Continuous monitoring method, is carried out according to the following steps successively：
Under original state first reflection target, second reflection target and the 3rd reflection target and first laser range unit and
Second laser range unit is the same as high；First reflection target, second anti-is calculated according to the travel distance of Hanging Basket and the bridge floor gradient
Shoot at the target mark and the 3rd reflecting target is marked on the theoretical offset of direction across bridge and vertical direction；
First step is the reflection target of staff's regulation first and the 3rd reflecting target target position, makes the first reflection target
The absolute altitude and axial location of detail design requirement are right up to the position after the 3rd reflection target regulation；
Second step is that staff opens first laser range unit, it is surveyed to the second reflection target transmitting laser
The distance between target and first laser range unit are reflected in flow control two, measure the reality of the second reflecting target target three-dimensional coordinate position
Border offset, the real offset that the position of detail design requirement is deviateed when the second reflecting target target three-dimensional coordinate position are more than
At 0.05 meter, electric control gear control audible-visual annunciator sends audible and visible alarm, reminds staff to correct the offset of Hanging Basket；It is above-mentioned
During, electric control gear records the second reflecting target target physical location；
Third step is that staff rotates second laser range unit to face the second reflecting target target position, operation
Second laser range unit makes it to the second reflection target transmitting laser, the reflection target of measurement second and second laser range unit
The distance between and horizontal absolute altitude, and to the level of first laser range unit on the basis of the second reflecting target target physical location
Degree and the anglec of rotation are checked；
Then second laser range unit is rotated to face the first reflecting target target position, operation second and swashed by staff
Optical range finding apparatus makes it be reflected to the first reflection target transmitting laser, measurement first between target and second laser range unit
Distance, and measure the first reflecting target target real offset；When first reflection target be placed near tested point position, measure thirdly
When dimension coordinate deviation is more than 5 centimetres, electric control gear control audible-visual annunciator sends audible and visible alarm, reminds staff to correct and hangs
The offset of basket；
Last staff's second laser range unit is rotated to the reflecting target target position of face the 3rd, operates the 3rd laser
Range unit make its to the 3rd reflection target transmitting laser, measurement the 3rd reflection target and second laser range unit between away from
From, and measure the 3rd reflecting target target real offset；When the 3rd reflection target is placed near tested point position, it is three-dimensional to measure its
When grid deviation value is more than 5 centimetres, electric control gear control audible-visual annunciator sends audible and visible alarm, reminds staff to correct Hanging Basket
Offset；
In the walking process of Hanging Basket and when walking stops in place, Hanging Basket offset is carried out by above-mentioned steps continuous
Monitoring.
The purpose of this utility model, which also resides in, provides a kind of continuous monitoring method using above-mentioned monitoring system.
The utility model has the following advantages：
The utility model is simple in construction, easy to use, and overcome needed professional to coordinate professional equipment to be determined in the past
The problem of point is measured, can not measured at any time is, it is necessary to measure the offset of position at which, it is possible to reflects target by first
Or the 3rd reflection target be arranged on where, laser beam emitting device can set distance transform reflection target position and apply automatically according to surveying
Work demand three-dimensional coordinate, it is more accurate without manual measurement, measurement result.Its skew can only be detected when Hanging Basket stops in the past
Amount, it is impossible to detected in Hanging Basket walking process.Using monitoring system of the present utility model and method, can be walked in Hanging Basket
During continuously detected, as long as three reflection targets in have a reflecting target target offset beyond design allow model
Enclose, electric control gear can control audible-visual annunciator sends alarm, reminds staff to carry out timely correction processing to Hanging Basket.
Any point position three-dimensional coordinate of construction location can be continuously measured with round-the-clock, all the period of time using the utility model, and
In general technical staff is slightly trained i.e. operable；And can according to the measurement data stored in built-in data-storage system,
Contrasted with simulation analysis, design data, construction data, experience is provided for later construction.
Monitoring system and monitoring method are continuously measured using straight line bridge cantilever method Arched Bridge Construction Linear of the present utility model, by
After one reflection target, the second reflection target and the 3rd reflecting target target real offset contrast with theoretical offset, Ke Yiyong
To control the concrete bridge deck of case-in-place cantilever method in the accordingly height at reflection target.Second reflecting target target actual shifts
The main function of amount is swashed for controlling the elevation of Hanging Basket central point position and the offset of Hanging Basket disalignment, and as first
Optical range finding apparatus adjusts the benchmark of oneself state.
Using the utility model, using remaining that fixed first laser range unit determines to be fixed on Hanging Basket horizontal stroke
The second reflecting target target physical location on beam, so as to be designated as benchmark again with the second reflecting target, to second laser range unit
Levelness and the anglec of rotation are proofreaded, and prevent from during use causing little deviation because multiple rotary acts so as to cause
Measurement result is inaccurate.
Using the utility model, laser can be launched by end bay Hanging Basket direction forward and mid-span Hanging Basket direction, can be right
The offset of former and later two Hanging Baskets is monitored.Effective measurement distance of laser ranging system is 150 meters, therefore uses this reality
With new, can in former and later two directions, amount to 300 meters in the range of measure, make maximum applicable model of the present utility model
Enclose for the straight line bridge below 300 meters of single span.Certainly, in order to ensure measurement accuracy of the present utility model, this practicality of practical application
When new, single span length（Along bridge to the distance between two neighboring bridge pier in direction）More preferably less than it is equal to 200 meters.Due to 80%
The single span length of straight line bridge is no more than 200 meters, therefore the utility model is applied suitable for the cantilever of most straight line bridges
Work, prevent that the offset of the position of Hanging Basket and cast-in-situ bridge out of position exceeds design requirement in work progress.
The utility model has accomplished the requirement of round-the-clock all the period of time measurement Hanging Basket, cantilever construction section three-dimensional coordinate, and need not
Professional measures, the equipment can with the three-dimensional coordinate at automatic measurement benchmark control point, workmen can move first at any time,
3rd activity reflection target, measures to the three-dimensional coordinate of tested point position, helps to construct.
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the present utility model；
Fig. 2 is to install the structural representation that column is arranged on 0# blocks；
Fig. 3 is the position view of the Bridge Sections at the first to the 3rd reflection target relative reflection target；
Fig. 4 is the schematic diagram that laser ranging system launches laser to its former and later two Hanging Basket.
Embodiment
Direction shown in arrow is Laser emission direction in Fig. 4.
As shown in Figures 1 to 4, straight line bridge cantilever method Arched Bridge Construction Linear of the present utility model, which continuously measures monitoring system, includes
Reflection target and the installation column being fixedly connected on 0# blocks, installation column are located at the pier stud of 0# blocks 3 in the suitable bridge of bridge upwards
Top；Installation column is interval with two along direction across bridge, and the respectively first installation column 1 and second installs column 2, the first peace
The distance for filling column 1 and bridge center line is less than the second installation column 2, and is not more than 1.0m；
First installation column 1 is provided with first laser range unit 4, and the second installation column 2 is provided with second laser ranging
Device 5；First laser range unit 4 and second laser range unit 5 are located in same level, second laser range unit 5
Provided with rotating chassis 6；Rotating chassis 6 are existing conventional structure, and concrete structure is no longer described in detail.
Reflect target be provided with it is at least a set of, it is a set of reflection target include 3, respectively first reflection target 7, second reflect
Target 8 and the 3rd reflects target 9；First reflection target 7 is hung on a heel post of block Hanging Basket 14 to be onstructed；Second reflecting target
Mark 8 is fixedly connected on block Hanging Basket crossbeam to be onstructed, and the second reflection target 8 is centrally located at where bridge center line vertically
Face；3rd reflection target 9 is hung on another heel post of block Hanging Basket 14 to be onstructed；
First reflection target, the second reflection target and the 3rd reflection target are arranged in isosceles triangle, with along suitable bridge to away from 0#
The direction of block for it is preceding to, the second reflection target position in the position of front end 1/3 of residing construction section, the first reflection target and the 3rd anti-
Suitable bridge of the mark respectively positioned at bridge side web of shooting at the target locates ± 0.5 meter to the midline；
The first laser range unit 4 and second laser range unit 5 are connected with an electric control gear 10, automatically controlled dress
Put 10 and be connected with audible-visual annunciator 11, memory 16 and power supply 12.Memory 16 is used to store the parameter of input and automatically controlled dress
Put the data of output.
The first installation column 1 and second is installed is respectively connected with protective cover 13 on column 2.
The electric control gear 10 is PLC or single-chip microcomputer.
Wherein, it is cast-in-place concrete column to install column, and its specification is 0.5*0.5*1.0（Rice）.
A set of reflection target is respectively provided with the end bay Hanging Basket and mid-span Hanging Basket of 0# blocks both sides.The reflection target of end bay Hanging Basket with
The set location that the reflecting target of mid-span Hanging Basket is marked on each on residing Hanging Basket is identical.The first laser range unit and second swashs
Optical range finding apparatus along bridge to away from the direction of 0# blocks to the offset of end bay Hanging Basket and mid-span Hanging Basket by, to transmitting laser, entering
Row monitoring.I.e. first laser range unit and second laser range unit are used for monitoring side to the laser that end bay Hanging Basket direction is launched
Across the offset of Hanging Basket, the laser launched to mid-span Hanging Basket is used for monitoring the offset of mid-span Hanging Basket.
Above-mentioned a full set of straight line bridge cantilever method is installed respectively in two corresponding to bridge 0# blocks main pier box beam tip positions
Arched Bridge Construction Linear continuously measures monitoring system.
The invention also discloses the company that monitoring system is continuously measured using above-mentioned straight line bridge cantilever method Arched Bridge Construction Linear
Continuous monitoring method, is carried out according to the following steps successively：
The first reflection target 7, second reflects target 8 and the 3rd and reflects target 9 and first laser ranging dress under original state
Put 4 and the same height of second laser range unit 5；First reflection target is calculated according to the travel distance of Hanging Basket 14 and the bridge floor gradient
7th, the second reflection target 8 and the 3rd reflects theoretical offset of the target 9 in direction across bridge and vertical direction；
First step is staff according to the measurement elevation data posted up on Hanging Basket column, up and down or left and right adjusting the
One reflection target 7 and the 3rd reflects the position of target 9, makes the position after the first reflection target 7 and the 3rd reflection regulation of target 9 just
Reach the absolute altitude and axial location of detail design requirement well, help workmen easily to determine installation and the structure coagulation of Hanging Basket
The absolute altitude axis in native face；
Second step is that staff opens first laser range unit 4, it is launched laser to the second reflection target 8
15, measurement second reflection the distance between target 8 and first laser range unit 4, the three-dimensional coordinate of the reflection target 8 of measurement second
Position（The three-dimensional of three-dimensional coordinate, refer to along bridge to, direction across bridge and vertical）Real offset, when the second reflection target 8
When the real offset that three-dimensional coordinate position deviates the position of detail design requirement is more than 0.05 meter（I.e. second reflection target 8
When bridge center line is deviateed more than 0.05 meter in center to the left or to the right）, electric control gear 10 control audible-visual annunciator 11 send acousto-optic
Alarm, staff is reminded to correct the offset of Hanging Basket 14；In said process, the record of electric control gear 10 second reflection target 8
Physical location；
Third step is that staff rotates second laser range unit 5 to face second position for reflecting target 8, behaviour
Making second laser range unit 5 makes it launch laser 15, the reflection target 8 of measurement second and second laser to the second reflection target 8
The distance between range unit 5 and horizontal absolute altitude, and to first laser ranging on the basis of the physical location of the second reflection target 8
The levelness and the anglec of rotation of device 4 are checked；
Because first laser range unit 4 remains stationary at work, therefore its position need not check；Second swashs
Optical range finding apparatus 5 is needed to be rotated at work to be directed at different reflection targets, and its levelness and the anglec of rotation are possible to
There is little deviation so as to cause measurement result inaccurate, thus need to check.
Then second laser range unit 5 is rotated to face first and reflects target 7 by staff by rotating chassis 6
Position, operation second laser range unit 5 make it launch laser 15 to the first reflection target 7, the reflection target 7 of measurement first and the
The distance between dual-laser range unit 5, and measure the real offset of the first reflection target 7；When the first reflection target 7 is in horizontal stroke
Bridge to or it is vertical（The direction of plumb line）Real offset be more than 10 centimetres when, electric control gear 10 control audible-visual annunciator 11 send out
Go out audible and visible alarm, remind staff to correct the offset of Hanging Basket 14；
Last staff's second laser range unit 5 rotates to face the 3rd position for reflecting target 9, and operation the 3rd swashs
Optical range finding apparatus makes it launch laser 15, the reflection target 9 of measurement the 3rd and second laser range unit 5 to the 3rd reflection target 9
The distance between, and measure the real offset of the 3rd reflection target 9；When the 3rd reflection target 9 is in direction across bridge or vertical reality
When border offset is more than 10 centimetres, electric control gear 10 controls audible-visual annunciator 11 to send audible and visible alarm, reminds staff's amendment
The offset of Hanging Basket 14；
In the walking process of Hanging Basket 14 and when walking stops in place, the offset of Hanging Basket 14 is carried out by above-mentioned steps
Continuous monitoring.
This patent is not only applicable to construction survey daily in work progress, can be also used for construction monitoring.
Above example is only to illustrative and not limiting the technical solution of the utility model, although with reference to above-described embodiment pair
The utility model is described in detail, it will be understood by those within the art that：The utility model can still be entered
Row modification or equivalent substitution, without departing from any modification or partial replacement of spirit and scope of the present utility model, it all should
Cover among right of the present utility model.
Claims (4)
1. straight line bridge cantilever method Arched Bridge Construction Linear continuously measures monitoring system, it is characterised in that：Including reflection target and fixed company
The installation column being connected on 0# blocks, installation column bridge suitable bridge to the top on direction positioned at 0# block pier studs；Column is installed
Two are interval with along direction across bridge, the respectively first installation column and second install column, the first installation column and bridge center
The distance of line is less than the second installation column；
First installation column is provided with first laser range unit, and the second installation column is provided with second laser range unit；The
One laser ranging system and second laser range unit are located in same level, and second laser range unit, which is provided with, rotates bottom
Disk；
Reflect target be provided with it is at least a set of, it is a set of reflection target include 3, respectively first reflection target, second reflection target
With the 3rd reflection target；First reflection target is hung on a heel post of block Hanging Basket to be onstructed；Second reflection target, which is fixed, to be connected
It is connected on block Hanging Basket crossbeam to be onstructed, the second reflecting target target is centrally located at vertical plane where bridge center line；3rd reflection
Target is hung on another heel post of block Hanging Basket to be onstructed；
First reflection target, the second reflection target and the 3rd reflection target are arranged in isosceles triangle, with along suitable bridge to away from 0# blocks
Direction is to be preceding to the second reflection target position is in the position of front end 1/3 of residing construction section, the first reflection target and the 3rd reflecting target
Mark locates ± 0.5 meter to the midline positioned at the suitable bridge of bridge side web respectively；
The first laser range unit and second laser range unit are connected with an electric control gear, and electric control gear is connected with
Audible-visual annunciator and power supply.
2. straight line bridge cantilever method Arched Bridge Construction Linear according to claim 1 continuously measures monitoring system, it is characterised in that：Institute
State and be respectively connected with protective cover on the first installation column and the second installation column.
3. straight line bridge cantilever method Arched Bridge Construction Linear according to claim 1 continuously measures monitoring system, it is characterised in that：Institute
It is PLC or single-chip microcomputer to state electric control gear.
4. straight line bridge cantilever method Arched Bridge Construction Linear according to claim 1 continuously measures monitoring system, it is characterised in that：0#
A set of reflection target is respectively provided with the end bay Hanging Basket and mid-span Hanging Basket of block both sides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704492.1U CN207050709U (en) | 2017-06-16 | 2017-06-16 | Straight line bridge cantilever method Arched Bridge Construction Linear continuously measures monitoring system |
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| CN201720704492.1U CN207050709U (en) | 2017-06-16 | 2017-06-16 | Straight line bridge cantilever method Arched Bridge Construction Linear continuously measures monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289903A (en) * | 2017-06-16 | 2017-10-24 | 郑州市市政工程总公司 | Straight line bridge cantilever method Arched Bridge Construction Linear continuously measures monitoring system and monitoring method |
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2017
- 2017-06-16 CN CN201720704492.1U patent/CN207050709U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289903A (en) * | 2017-06-16 | 2017-10-24 | 郑州市市政工程总公司 | Straight line bridge cantilever method Arched Bridge Construction Linear continuously measures monitoring system and monitoring method |
| CN107289903B (en) * | 2017-06-16 | 2023-07-14 | 郑州市市政工程总公司 | Linear continuous measurement monitoring system and monitoring method for construction of linear bridge cantilever method |
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