AU2020103959A4 - Vertical Swing Centering Construction Measurement Method of Super High-Rise Buildings - Google Patents
Vertical Swing Centering Construction Measurement Method of Super High-Rise Buildings Download PDFInfo
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- AU2020103959A4 AU2020103959A4 AU2020103959A AU2020103959A AU2020103959A4 AU 2020103959 A4 AU2020103959 A4 AU 2020103959A4 AU 2020103959 A AU2020103959 A AU 2020103959A AU 2020103959 A AU2020103959 A AU 2020103959A AU 2020103959 A4 AU2020103959 A4 AU 2020103959A4
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- super high
- vertical swing
- measurement method
- rise buildings
- swing centering
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/10—Plumb lines
- G01C15/105—Optical plumbing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention belongs to the field of vertical projection measurement
construction of super high-rise buildings, and provides a vertical swing centering
construction measurement method of super high-rise buildings, which specifically
includes: respectively setting an external control reference point and an internal
control reference point on external and internal reference layers of a super high-rise
building; erecting a laser plumbometer on the internal control reference point, waiting
for the laser to pass upward through a reserved hole in the floor of an operation layer
to hit a laser receiving target on the operation layer, obtaining a laser spot, and using
the obtained laser spot as a control point of the operation layer; and respectively
erecting multiple Beidou GNSSs on the external control reference point and the
control point of the operation layer, carrying out synchronous static observation to
obtain observation data, and guiding the vertical swing centering construction of the
super high-rise building based on the observation data. The present invention is high
in measurement efficiency and low in error, and is not affected by site restrictions or
external environments.
1/6
Fig I
Description
1/6
Fig I
Technical Field
The present invention relates to the field of vertical projection measurement
construction of super high-rise buildings, in particular to a vertical swing centering
construction measurement method of super high-rise buildings.
Background Art
In the construction of super high-rise buildings, external environments (sunlight,
wind, temperature and the like) are complex and changeable, large equipment (tower
crane) runs, and the structure is shaken in concrete floor construction; as shown in Fig.
1, a super high-rise steel structure frame has high flexibility, the flexible swing of the
structure will affect the upward measurement accuracy of a control point, the vertical
guiding measurement accuracy of an axis control network is difficult to guarantee,
and the vertical deviation of the structure directly affects the engineering stress
condition, which is related to the safety of the structure. Therefore, the allowable
deviation of the construction control axis of a super high-rise building structure is
3mm, it is necessary to ensure that the main body structure is on the same plumb line,
and a core tube and an outer frame are integrally and vertically centered, so that a core
tube and an outer frame are integrally and vertically centered to ensure the safety of
the structure.
At present, vertical swing centering construction measurement methods of super
high-rise buildings include an external control collimation line method and a plumb
bob method. As shown in Fig. 2, the external control collimation line method is to
place a theodolite on an external control axis control pile of a building, carry out
centering and leveling, aim at an axis mark at the bottom of the building, rotate a
telescope upward, draw a line on the edge of the floor of an operation layer under the
command of a vertical wire, similarly measure the other end point of the axis by projection, and erect an instrument on the operation layer to connect the two points to form an operation layer axis. As shown in Fig. 3, the plumb bob method is to bury a fixed mark of an axis point on the ground of the first floor, and reserve a hole in each floor above the mark for a plumb bob line to pass through. During projection measurement, a cross hung with a plumb bob is arranged on the reserved hole in the floor of the construction operation layer, the cross is slowly moved, and when the tip of the plumb bob is statically aligned with the fixed mark on the ground, the center of the cross is a point to be measured by projection.
However, the above-mentioned external control collimation line method requires
that the surrounding area of the building must be open, the site requirements are high
and the visibility conditions are good, due to the site restrictions, the instrument is
close to the building, the elevation angle of the instrument is too large, the
measurement accuracy is about 5mm, which is suitable for buildings lower than 60
meters, so that the construction of super high-rise buildings cannot be satisfied at all.
While the plumb bob method is easily affected by the external environments (such as
wind blowing and vibration), and generally needs manual operation, so that the
efficiency is low and the error is large, thus it is only suitable for common low-rise
buildings, and cannot meet the requirements of the vertical swing centering
construction measurement of super high-rise buildings.
Summary of the Invention
Therefore, in order to solve the technical problems in the prior art of
susceptibility to site constraints, susceptibility to external environmental influence,
low measurement efficiency and large measurement error, the present invention
provides a vertical swing centering construction measurement method of super
high-rise buildings. Through the use of laser collimation inside a building and Beidou
GNSS (Global Navigation Satellite System, global navigation satellite system)
measurement at the outside of the building, continuous synchronous static observation
is carried out to measure the swing deformation of the building, which provides a reliable data foundation for the safe construction of super high-rise buildings and guides the centering correction in the construction. The measurement accuracy will not decrease as the height of the building increases, and an operation layer can be measured at one time, thus avoiding the accumulation of errors due to multiple transmission measurements, and the method can be operated all-weather, and is not affected by external environments such as eye-blocking. In this way, a core tube and an outer frame of the super high-rise building are in the same core, and the overall verticality swing centering purpose is achieved, the method is high in measurement efficiency and low in error, and is not affected by site restrictions or external environments.
The present invention provides a vertical swing centering construction
measurement method of super high-rise buildings, which specifically includes:
respectively setting an external control reference point and an internal control
reference point on external and internal reference layers of a super high-rise building;
erecting a laser plumbometer on the internal control reference point, waiting for
the laser to pass upward through a reserved hole in the floor of an operation layer to
hit a laser receiving target on the operation layer, obtaining a laser spot, and using the
obtained laser spot as a control point of the operation layer; and
respectively erecting multiple Beidou GNSSs on the external control reference
point and the control point of the operation layer, carrying out synchronous static
observation to obtain observation data, and guiding the vertical swing centering
construction of the super high-rise building based on the observation data.
Preferably, the method further includes: when pouring concrete on the floor of
the operation layer, reserving a hole of 200mm*200mm, wherein the hole is located
vertically above the internal control reference point of the reference layer.
Preferably, the internal control reference points of the reference layer include at
leastthree.
Preferably, closure detection is performed on a plane polygon formed by the
control points of the operation layer.
Preferably, the observation data includes information of the control points of the
operation layer.
Preferably, the sampling frequency of the synchronous static observation is
Preferably, the synchronous static observation is continuously performed for 48
hours to obtain the observation data.
Preferably, the guiding the vertical swing centering construction of the super
high-rise building based on the observation data includes:
calculating and fitting the observation data, and correcting the vertical swing
centering of the super high-rise building according to a preset overall verticality.
Preferably, the accuracy of the laser plumbometer is 1/200000.
Preferably, when the height of the super high-rise building exceeds a threshold,
the super high-rise building is segmented based on the threshold, and the lowest layer
of each segment is used as the internal reference layer, and an internal control
reference point is arranged on the internal reference layer of each segment.
The present invention has the following beneficial effects:
1. Laser collimation is used inside the building, and the Beidou GNSS is used at
the outside to obtain the synchronous static observation data, then the vertical swing
centering construction of the super high-rise building is guided based on the
observation data, and the method can be operated all-weather, and is not affected by
external environments such as eye-blocking;
2. when the height of the super high-rise building exceeds a threshold, the super
high-rise building is segmented based on the threshold, the lowest layer of each
segment is used as the internal reference layer, and an internal control reference point
is arranged on the internal reference layer of each segment, so that the measurement
accuracy will not decrease as the height of the building increases, and the operation
layer can be measured at one time, thus avoiding the accumulation of errors due to
multiple transmission measurements;
3. after the Beidou GNSS is used for synchronous static observation, the data can be transferred to a computer hard disk in time to ensure that the observation data is not lost;
4. the professional data processing software is used to calculate and fit the
observation data, and correct the vertical swing centering of the super high-rise
building according to the preset overall verticality, so as to realize that the core tube
and the outer frame of the super high-rise building are in the same core, the overall
verticality swing centering purpose is achieved, and manual operation is reduced,
thereby improving the measurement efficiency; and
5. the measurement error is small, and the method is not affected by site
restrictions and the external environments.
Brief Description of the Drawings
1. Fig. 1 is a schematic diagram of influence of structural deformation of
super high-rise buildings provided in the prior art;
2. Fig. 2 is a schematic diagram of an external control collimation line
method of vertical swing centering of super high-rise buildings provided in the prior
art;
3. Fig. 3 is a schematic diagram of a plumb bob measurement method of
vertical swing centering of super high-rise buildings provided in the prior art;
4. Fig. 4 is a schematic flow diagram of a vertical swing centering
construction measurement method of super high-rise buildings provided by an
embodiment of the present invention;
5. Fig. 5 is a schematic diagram of segmented relay transfer of a laser
plumbometer provided by an embodiment of the present invention;
6. Fig. 6 is a schematic diagram of performing synchronous static
observation by using a Beidou GNSS provided by an embodiment of the present
invention;
7. Fig. 7 is a schematic diagram of fitted centering of vertical swing
centering construction measurement of super high-rise buildings provided by an embodiment of the present invention.
Detailed Description of the Embodiments
In order to enable those skilled in the art to more clearly understand the vertical
swing centering construction measurement method of super high-rise buildings
provided by the present invention, it will be described in detail below with reference
to the drawings.
As shown in Fig. 4, the embodiment of the present invention provides a vertical
swing centering construction measurement method of super high-rise buildings, which
specifically includes the following steps:
Si: respectively setting an external control reference point and an internal
control reference point on external and internal reference layers of a super high-rise
building; S2: erecting a laser plumbometer on the internal control reference point, waiting
for the laser to pass upward through a reserved hole in the floor of an operation layer
to hit a laser receiving target on the operation layer, obtaining a laser spot, and using
the obtained laser spot as a control point of the operation layer; and
S3: respectively erecting multiple Beidou GNSS on the external control
reference point and the control point of the operation layer, carrying out synchronous
static observation to obtain observation data, and guiding the vertical swing centering
construction of the super high-rise building based on the observation data.
The present invention mainly adopts laser collimation inside the building, and
Beidou GNSS measurement at the outside of the the building, synchronous static
observation is performed for a period of time to measure the swing deformation of the
building, which provides a reliable data foundation for the safe construction of the
super high-rise building and guides the centering correction in the construction. The
measurement accuracy will not decrease as the height of the building increases, and
the operation layer can be measured at one time, thus avoiding the accumulation of
errors due to multiple transmission measurements, and the method can be operated all-weather, and is not affected by external environments such as eye-blocking. In this way, the core tube and the outer frame of the super high-rise building are in the same core, and the overall verticality swing centering purpose is achieved, the method is high in measurement efficiency and low in error, and is not affected by site restrictions or external environments.
First, a location with a wide surrounding view and a cut-off height angle
exceeding 15 is selected around the super high-rise building; during the selection, it
is necessary to avoid surrounding objects with no signal reflector or strong reflecting
satellite signals as much as possible to reduce multipath interference; at the same time,
it is also necessary to avoid construction and man-made interference; and the external
control reference point compulsively centered with the super high-rise building is set
at the outside of a construction deformation influence area of the super high-rise
building. Further,
The internal control reference point of the super high-rise building is set on the
internal reference layer of the super high-rise building, and the internal control
reference point should be selected in combination with the structural form of the super
high-rise building. Preferably, there are not less than 3 internal control reference
points, which can form a closed geometric figure.
In addition, before pouring concrete on the operation layer, the operation layer is
located above the reference layer in the super high-rise building, and an iron part is
pre-embedded in a corresponding position of the operation layer (vertically above the
internal control reference point of the reference layer) and is firmly tied to the
reinforcing steel bar of the floor. Therefore, when concrete is poured on each floor
during the construction, a 200mm*200mm hole is reserved at the above
corresponding position in the vertical direction to project laser upward.
After the external control reference point and the internal control reference point
of the super high-rise building are stabilized, joint measurement can be carried out, a
1"-level total station is selected, and a wire form is adopted, because the wire has the characteristics of flexible measurement, easy expansion and encryption, and small site restriction, so the onsite actual measurement should try to avoid a too large difference in height between front and back points of the wire, and the side lengths of the wire should be roughly equal.
Then, a laser plumbometer with accuracy of 1/200000 is selected, and a zenith
projection method is used for the measurement. The laser plumbometer is erected on
the internal control reference point of the super high-rise building, after centering and
leveling, the laser is turned on to pass through the hole reserved in the above floor, the
point location of the internal control reference point is projected onto the laser
receiving target of the operation layer through the reserved hole, and the laser spot is
obtained through the laser receiving target to serve as the control point of the
operation layer.
Preferably, the number of control points for each projection measurement is not
less than 3, the control points form a plane polygon on the operation layer, and closure
detection is performed on graphical conditions such as the angle and side length of the
polygon.
Preferably, as shown in Fig. 5, due to the own factors of the production of the
plumbometer, as the transmission distance increases, the laser spot continues to
diverge and expand, and it is difficult to obtain the central point of the spot at a
position of 100 meters, therefore, for super high-rise buildings of hundreds of meters,
segmented relay transmission is needed, that is, the super high-rise building is divided
into multiple segments according to 100 meters, the lowest layer of each segment is
used as the internal reference layer, and an internal control reference point is arranged
on the internal reference layer of each segment, thus avoiding the accumulation of
errors due to multiple transmission measurements.
Finally, as shown in Fig. 6, multiple Beidou GNSSs are erected on the external
control reference point of the super high-rise building and the control point for laser
transmission of the high-altitude operation layer to carry out synchronous static
observation.
Preferably, before the observation, a receiver can be preheated and stewed, and at
the same time, whether the battery capacity, and the memory and the storage space of
the receiver are sufficient is checked.
Requirements of erecting the Beidou GNSS: centering and leveling.
The receiver records observation station information, including information
(such as point name) of the control point, the serial number of the receiver, and
power-on and power-off time of the instrument, etc.
During the observation process, it is necessary to avoid using radio
communication tools near the receiver as much as possible, the receiver equipment is
prevented from shaking during the observation period, and people and other objects
are prevented from touching the antenna or blocking the signal.
As shown in Fig. 7, the center is determined according to the data distribution of
the point location within a period of time, so as to perform centering correction. The
sampling frequency is 15HZ, after 48 hours of continuous observation, after the
observation is ended, the data is transferred to the computer hard disk to ensure the
safety of observation data of the Beidou GNSS. Professional data processing software
(such as GAMIT) is used to calculate and fit the data, and to correct the vertical swing
centering of the super high-rise building according to the preset overall verticality
(3H/10000, and less than 3cm) so as to guide the vertical swing centering construction
of the super high-rise buildings.
The embodiment of the present invention is described in detail above, and
specific examples are used herein to illustrate the principles and implementation
manners of the present invention. The description of the above embodiment is only
used to help understand the core idea of the present invention; at the same time, for
those of ordinary skill in the art, according to the idea of the present invention,
changes are made to the specific embodiment and the application scope. In summary,
the content of the specification should not be construed as limiting the present
invention.
Claims (10)
1. A vertical swing centering construction measurement method of super
high-rise buildings, characterized by comprising:
respectively setting an external control reference point and an internal control
reference point on external and internal reference layers of a super high-rise building;
erecting a laser plumbometer on the internal control reference point, waiting for
the laser to pass upward through a reserved hole in the floor of an operation layer to
hit a laser receiving target on the operation layer, obtaining a laser spot, and using the
obtained laser spot as a control point of the operation layer; and
respectively erecting multiple Beidou GNSSs on the external control reference
point and the control point of the operation layer, carrying out synchronous static
observation to obtain observation data, and guiding the vertical swing centering
construction of the super high-rise building based on the observation data.
2. The vertical swing centering construction measurement method of super
high-rise buildings according to claim 1, wherein the method further comprises: when
pouring concrete on the floor of the operation layer, reserving a hole of
200mm*200mm, wherein the hole is located vertically above the internal control
reference point of the reference layer.
3. The vertical swing centering construction measurement method of super
high-rise buildings according to claim 2, wherein the internal control reference points
of the reference layer comprise at least three.
4. The vertical swing centering construction measurement method of super
high-rise buildings according to claim 3, wherein closure detection is performed on a
plane polygon formed by the control points of the operation layer.
5. The vertical swing centering construction measurement method of super
high-rise buildings according to claim 1, wherein the observation data comprises
information of the control points of the operation layer.
6. The vertical swing centering construction measurement method of super
high-rise buildings according to claim 5, wherein the sampling frequency of the
synchronous static observation is 15HZ.
7. The vertical swing centering construction measurement method of super
high-rise buildings according to claim 6, wherein the synchronous static observation
is continuously performed for 48 hours to obtain the observation data.
8. The vertical swing centering construction measurement method of super
high-rise buildings according to claim 7, wherein the guiding the vertical swing
centering construction of the super high-rise building based on the observation data
comprises:
calculating and fitting the observation data, and correcting the vertical swing
centering of the super high-rise building according to a preset overall verticality.
9. The vertical swing centering construction measurement method of super
high-rise buildings according to claim 1, wherein the accuracy of the laser
plumbometer is 1/200000.
10. The vertical swing centering construction measurement method of super
high-rise buildings according to any one of claims 1-9, wherein when the height of the
super high-rise building exceeds a threshold, the super high-rise building is segmented
based on the threshold, and the lowest layer of each segment is used as the internal
reference layer, and an internal control reference point is arranged on the internal
reference layer of each segment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020113718646 | 2020-11-30 | ||
| CN202011371864.6A CN112525177A (en) | 2020-11-30 | 2020-11-30 | Verticality swing centering construction measurement method for super high-rise building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020103959A4 true AU2020103959A4 (en) | 2021-02-18 |
Family
ID=74591554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020103959A Ceased AU2020103959A4 (en) | 2020-11-30 | 2020-12-08 | Vertical Swing Centering Construction Measurement Method of Super High-Rise Buildings |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112525177A (en) |
| AU (1) | AU2020103959A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714315A (en) * | 2022-04-27 | 2022-07-08 | 东南大学 | Automatic marking device and marking method for vertical transmission of internal control point |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866801B (en) * | 2021-08-31 | 2024-05-28 | 郑州威科姆华大北斗导航科技有限公司 | Beidou satellite positioning accuracy evaluation improvement method and system based on vertical projection |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101804181B1 (en) * | 2015-09-01 | 2017-12-05 | 한국해양과학기술원 | Coastal Control point for Photogrammetry |
| CN106017444A (en) * | 2016-05-26 | 2016-10-12 | 广东工业大学 | Independent monitoring method for construction verticality of super-high building |
| CN111198393A (en) * | 2020-01-13 | 2020-05-26 | 北京建筑大学 | Satellite positioning-based construction tower body verticality real-time detection system |
-
2020
- 2020-11-30 CN CN202011371864.6A patent/CN112525177A/en active Pending
- 2020-12-08 AU AU2020103959A patent/AU2020103959A4/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714315A (en) * | 2022-04-27 | 2022-07-08 | 东南大学 | Automatic marking device and marking method for vertical transmission of internal control point |
| CN114714315B (en) * | 2022-04-27 | 2023-08-29 | 东南大学 | Automatic scribing device and method for vertical transfer of internal control points |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112525177A (en) | 2021-03-19 |
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| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |