CN115402949A - Tower crane mounting structure with stress sensor - Google Patents
Tower crane mounting structure with stress sensor Download PDFInfo
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- CN115402949A CN115402949A CN202211002061.2A CN202211002061A CN115402949A CN 115402949 A CN115402949 A CN 115402949A CN 202211002061 A CN202211002061 A CN 202211002061A CN 115402949 A CN115402949 A CN 115402949A
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- tower crane
- supporting
- supporting beam
- mounting structure
- stress sensor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The utility model relates to a take tower crane mounting structure of stress sensor relates to the field of construction safety, it is including fixing at subaerial mounting platform, install the tower crane foundation festival on mounting platform, mounting platform is including fixing at subaerial support column and fixing the supporting beam that sets up at the level of support column upper end, a supporting beam sets up the platform of many component installation tower cranes, the tower crane foundation festival is installed on the supporting platform that a supporting beam constitutes, be provided with roof beam strain sensor on a supporting beam's the vertical lateral wall. The method and the device have the effects of reducing the interference of environmental factors and monitoring the change of the state of the tower crane in real time.
Description
Technical Field
The application relates to the field of building construction safety, in particular to a tower crane mounting structure and a tower crane perpendicularity monitoring method.
Background
The tower crane is the most common hoisting equipment on the construction site, and is called a tower crane, which is lengthened (high) section by section (called a standard section for short) and used for hanging construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction.
In the correlation technique, when the tower crane is used, the perpendicularity of the tower crane needs to be monitored so as to control engineering risks. The conventional monitoring method is to periodically perform inspection through theodolite and visual inspection by workers. But the manual detection has hysteresis quality, and the problem of the perpendicularity of the tower crane cannot be found in time.
To the correlation technique among the above-mentioned, in order to can real time monitoring tower crane's straightness state of hanging down, the inventor hopes to carry out real time monitoring to tower crane's straightness that hangs down through electronic equipment. The method for automatically monitoring the perpendicularity of the tower crane directly utilizes the angle sensor to detect the angle change of the tower crane, directly fixes the angle sensor on the tower crane and directly feeds back the perpendicularity change of the tower crane, but the mode can be influenced by factors such as tower crane rotation, construction site wind speed, lifting hook swing and the like, under the conditions, the tower crane can swing by a certain amplitude, the angle sensor can be interfered, and the angle sensor can not accurately feed back the inclination condition of the tower crane. Therefore, the inventor designs a tower crane mounting structure with a stress sensor.
Disclosure of Invention
In order to carry out real time monitoring to the straightness relevant data that hangs down of tower crane to reduce the interference that environmental factor caused, this application provides a take stress sensor's tower crane mounting structure, monitors through the focus skew to the tower crane, indirectly judges the tower crane straightness that hangs down and changes, need not carry out direct monitoring to the tower crane, avoids and has reduced the interference that tower crane vibrations caused, can also realize the real time monitoring to the tower crane.
The application provides a tower crane mounting structure adopts following technical scheme:
the utility model provides a tower crane mounting structure, is including fixing at subaerial mounting platform, installing tower crane foundation festival on the mounting platform, mounting platform is including fixing at subaerial support column and fixing a supporting beam that the level of support column upper end set up, a supporting beam sets up the platform of many constitution installation tower cranes, tower crane foundation festival is installed on the supporting platform that a supporting beam is constituteed, be provided with roof beam strain transducer on a supporting beam's the vertical lateral wall.
Through adopting above-mentioned technical scheme, constitute the mounting platform of installation tower crane with support column and supporting beam, tower crane foundation festival lower extreme is fixed on many supporting beams, the body of the tower crane takes place the slope, the focus of tower crane can take place the skew, the supporting beam atress of difference this moment exists the difference, detect the change of stress in each supporting beam through strain sensor, the numerical value of contrast each strain sensor is poor, can indirectly judge the range of tower crane focus skew, and then can deduce the straightness change that hangs down of tower crane, realize the detection to the tower crane straightness that hangs down, at tower crane vertical deviation too big, when tower crane focus skew is too big, in time send out the police dispatch newspaper, prevention potential safety hazard. If the tower crane swings due to factors such as wind speed change, tower crane rotation, lifting hook swing and the like, the gravity center of the tower crane cannot be greatly changed, and the influence on the stress of the supporting beam is small; the tower crane vibrations are to supporting beam mainly produce horizontal interference force to, and this is less to setting up the roof beam strain sensor influence on the long high side lateral wall of a supporting beam surface, installs roof beam strain sensor on the vertical lateral wall of a supporting beam, and strain sensor mainly measures the ascending atress change of the vertical direction of a supporting beam, can further reduce the influence of tower crane normal vibration to sensor detection, improves the data accuracy that the sensor detected.
Optionally, the bottom of tower crane foundation festival is provided with many supporting legss, it corresponds to prop up supporting beam the supporting legs is provided with many, every only fix one on the supporting beam the supporting legs, every on the supporting beam strain sensor closes on corresponding supporting legs setting.
Through adopting above-mentioned technical scheme, the supporting legs and the supporting beam one-to-one of tower crane bottom, the stress variation of every supporting beam only receives the influence of a supporting legs, according to the stress variation of each supporting beam, can directly obtain the atress size of each supporting leg, and the focus skew range and the skew direction of tower crane are gone out in the analysis that can be more convenient to make corresponding reply.
Optionally, the supporting legs of the tower crane foundation section are located in the middle of the corresponding supporting beam.
Through adopting above-mentioned technical scheme, the vertical back to pressure in a supporting beam intermediate position, its change of meeting an emergency is more obvious, is convenient for collect a supporting beam's the data of meeting an emergency through strain sensor, and then makes corresponding judgement, and strain sensor's data feedback is more sensitive, helps in time discovering the potential safety hazard of tower crane, guarantee construction safety.
Optionally, the support beam is provided with two layers, namely a lower layer beam and an upper layer beam, the lower layer beam is fixed on the support column, and the upper layer beam is fixed on the lower layer beam; a cushion block is fixed on the upper mounting surface of the lower-layer beam, and the upper mounting surface of the cushion block is flush with the upper mounting surface of the upper-layer beam; and the lower mounting surface of the upper-layer beam is fixed with a balancing weight, the shape, size and weight of the balancing weight are the same as those of the cushion block, and the balancing weight is positioned under the supporting leg corresponding to the supporting beam.
By adopting the technical scheme, the supporting beams are arranged in double layers, so that the installation and construction are convenient; the cushion blocks are arranged on the lower layer beam, so that the smooth installation of the tower crane foundation section is facilitated; install the balancing weight at upper beam downside, help unifying the atress environment of upper beam and lower floor's roof beam, help reducing interference factor, after the data that obtains strain sensor feedback, can directly carry out the analysis.
Optionally, the frame formed by the support beams is square.
By adopting the technical scheme, the length of each supporting beam is constant, the stress environment of each supporting beam is further unified, the accuracy of data is improved, and the accurate feedback of the inclination state of the tower crane is facilitated.
Optionally, the beam strain sensor is a resistance strain gauge mounted on the side wall of the support beam
By adopting the technical scheme, the stress change of the supporting beam is detected through the strain gauge and fed back to the computer.
Optionally, the upper end and the lower end of the side wall of the support beam are respectively provided with the resistance strain gauge
By adopting the technical scheme, the stress change of the three pipes of the supporting beam can be better detected.
Optionally, the supporting beam is an I-shaped steel beam, a triangular plate serving as a reinforcing plate is arranged between a web plate and a flange of the supporting beam, and the triangular plate for connecting the upper flange and the lower flange is not connected.
By adopting the technical scheme, the I-shaped steel beam is used as the supporting beam, and the strain sensor is arranged on the web plate of the I-shaped steel beam, so that a better mounting environment is provided for the resistance strain gauge, and the resistance strain gauge is favorable for accurately feeding back the stress change of the supporting beam; the triangular plate is arranged to strengthen the structural strength of the flange, so that the flange is not easy to bend, and the I-shaped steel beam can better bear a tower crane; the set square on upper and lower flange separately sets up, can avoid the too much atress that disturbs the web of set square, reduces the influence to the data feedback of resistance foil gage.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the steps that a mounting platform for mounting the tower crane is built by support columns and support beams, strain sensors are mounted on the side walls of the support beams to detect stress changes of the support beams, the deviation amplitude of the gravity center of the tower crane is judged by different stresses of the support beams, the integral inclination amplitude of the tower crane is further deduced, the verticality change of the tower crane is indirectly judged mainly by the vertical stress of the support beams, and interference caused by self swinging (horizontal interference force) of the tower crane can be avoided;
2. the cushion block and the balancing weight are arranged and matched with the supporting beams to form a square, so that the stress environment of each supporting beam is unified, interference factors are reduced, and the data transmitted by the strain sensor can be analyzed and compared conveniently;
3. through set up disconnected set-square as the reinforcing plate between the web and the edge of a wing at the I-steel roof beam, when strengthening I-steel roof beam intensity, reduce the influence of additional strengthening to the web atress to the atress change of each supporting beam of the comparatively sensitive feedback of resistance foil gage.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic structural view of a support beam according to an embodiment of the present invention.
Reference numerals: 1. a support column; 2. a support beam; 21. a set square; 3. a resistance strain gauge; 4. supporting legs; 5. cushion blocks; 6. and a balancing weight.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses take stress sensor's tower crane mounting structure, including fixing at subaerial mounting platform and tower crane foundation festival, the tower crane foundation festival installation is fixed on mounting platform.
Referring to fig. 1, the mounting platform comprises a support pillar 1 pre-buried in the ground and a horizontally arranged support beam 2 fixed on the upper end face of the support pillar 1, the support beam 2 is an i-shaped steel beam, and the support beam 2 is fixed on the upper end of the support pillar 1 through a bolt; the supporting beam 2 is provided with two layers which are respectively two parallel lower beams and two parallel upper beams, the upper beams and the lower beams are arranged in a crossed manner, the included angle is a right angle, the lower beams are directly fixed on the supporting columns 1, and the upper beams are fixed on the upper mounting surface of the lower beams through bolts; a cushion block 5 is fixed on the upper mounting surface of the lower layer beam, the upper mounting surface of the cushion block 5 is flush with the upper mounting surface of the upper layer beam, and the upper layer beam and the cushion block 5 form a platform for mounting a tower crane foundation section; the lower mounting surface of the upper beam is fixed with a balancing weight 6, and the shape, size and weight of the balancing weight 6 and the cushion block 5 are the same. The upper beam and the lower beam form a square frame structure, and the cushion block 5 and the balancing weight 6 are both positioned in the middle of the corresponding beams.
The tower crane foundation section is provided with four supporting feet 4, the supporting beams 2 correspond to the supporting feet 4 one by one, and the four supporting feet 4 are respectively fixed on the two upper beams and the cushion block 5 by bolts; the supporting legs 4 are fixed in the middle of the upper-layer beam and are opposite to the lower balancing weight 6; the cushion block 5 is a cuboid stand column, the end face of the cushion block 5 is completely coincided with the lower end face of the supporting leg 4, and the cushion block 5 is fixedly connected with the cushion block 5 and the supporting beam 2 through bolts.
And a beam strain sensor is arranged on the side wall of each supporting beam 2 in the length direction, namely, a web plate of each supporting beam 2 is provided with the beam strain sensor, the beam strain sensor is a resistance strain gauge 3, and the resistance strain gauge 3 is arranged under the supporting leg 4. Supporting legs 4 are fixed at a middle position of a supporting beam 2, and after the vertical load of the tower crane acts on the supporting beam 2, the change can be obvious, and resistance strain gauges 3 are installed under the supporting legs 4, so that the stress change of the supporting beam 2 can be sensitively detected, and the data is accurate.
Referring to fig. 2, resistance strain gauges 3 are respectively installed at the upper and lower ends of the side wall of the support beam 2 to better detect the strain in the support beam 2 and more accurately feed back the load condition of the support beam 2. A triangular plate 21 is arranged between a web plate and a flange of the support beam 2 and used as a reinforcing plate, and the triangular plate 21 is welded and fixed on the support beam 2, so that the strength of the support beam 2 is improved, and the flange is prevented from deforming; the triangular plates 21 connected with the upper flange and the lower flange are not connected, so that the situation that the reinforcing plate structure directly bears vertical load, the strain of a web is influenced, and the data monitoring of the resistance strain gauge 3 is influenced can be avoided; a plurality of triangular plates 21 are uniformly provided along the longitudinal direction of the support beam 2.
The implementation principle of the tower crane installation structure with the stress sensor disclosed by the embodiment of the application is as follows: firstly, the strain of each supporting beam 2 is monitored, the load of each supporting leg 4 of the tower crane is further detected, the gravity center offset amplitude and direction of the tower crane can be judged according to the load change of each supporting leg 4 of the tower crane, if the perpendicularity of the tower crane changes, the gravity center can be greatly offset, the load of each supporting leg 4 can also be obviously changed, a model is built according to the stress condition in the perpendicularity of the tower crane, a corresponding load limit value is set, and if the load of the supporting leg 4 on one side exceeds the limit, an alarm is given; borrow this, can be through the monitoring of meeting an emergency to mounting platform, indirectly realize the straightness's that hangs down to the tower crane detection.
Secondly, because of factors such as wind-force change, body of the tower rotation, lifting hook swing, when the tower crane body of the tower crane takes place the swing, mainly produce the load of level to a supporting beam 2, and this is very little to installing resistance foil gage 3 on the web influence, helps reducing the interference that environmental factor caused, avoids the wrong report, ensures the efficiency of construction.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a take stress sensor's tower crane mounting structure, is including fixing at subaerial mounting platform, installing tower crane foundation festival on the mounting platform, its characterized in that: mounting platform is including fixing support column (1) subaerial and fixing supporting beam (2) that the level of support column (1) upper end set up, supporting beam (2) set up many platforms of constituteing the installation tower crane, the tower crane basis festival is installed on the supporting platform that supporting beam (2) are constituteed, be provided with roof beam strain transducer on the vertical lateral wall of supporting beam (2).
2. The tower crane mounting structure with the stress sensor according to claim 1, wherein the stress sensor is arranged on the tower crane mounting structure; the bottom of tower crane basis festival is provided with many supporting legss (4), it corresponds to prop up supporting beam (2) supporting legss (4) are provided with many, every only fixed one on propping up supporting beam (2) supporting legss (4), every on propping up supporting beam (2) strain sensor closes on supporting legss (4) that correspond and sets up.
3. The tower crane mounting structure with the stress sensor according to claim 2, wherein: the supporting legs (4) of the tower crane foundation section are located in the middle of the corresponding supporting beams (2).
4. The tower crane mounting structure with the stress sensor according to claim 3, wherein: the supporting beam (2) is provided with two layers, namely a lower layer beam and an upper layer beam, the lower layer beam is fixed on the supporting column (1), and the upper layer beam is fixed on the lower layer beam; a cushion block (5) is fixed on the upper mounting surface of the lower-layer beam, and the upper mounting surface of the cushion block (5) is flush with the upper mounting surface of the upper-layer beam; a balancing weight (6) is fixed on the lower mounting surface of the upper-layer beam, the shape, size and weight of the balancing weight (6) are the same as those of the cushion block (5), and the balancing weight (6) is located right below the supporting leg (4) of the corresponding supporting beam (2).
5. The tower crane mounting structure with the stress sensor according to claim 4, wherein: the frame formed by combining the support beams (2) is square.
6. The tower crane mounting structure with the stress sensor according to any one of claims 1 to 4, wherein: the beam strain sensor is a resistance strain gauge (3) arranged on the side wall of the support beam (2).
7. The tower crane mounting structure with the stress sensor according to any one of claims 6, wherein: and the upper end and the lower end of the side wall of the supporting beam (2) are respectively provided with the resistance strain gauge (3).
8. The tower crane mounting structure with the stress sensor according to claim 6, wherein: the supporting beam (2) is an I-shaped steel beam, a triangular plate (21) is arranged between a web plate and a flange of the supporting beam (2) and serves as a reinforcing plate, and the triangular plate (21) is connected with an upper flange and a lower flange and is not connected with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211002061.2A CN115402949A (en) | 2022-08-20 | 2022-08-20 | Tower crane mounting structure with stress sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211002061.2A CN115402949A (en) | 2022-08-20 | 2022-08-20 | Tower crane mounting structure with stress sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115402949A true CN115402949A (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211002061.2A Pending CN115402949A (en) | 2022-08-20 | 2022-08-20 | Tower crane mounting structure with stress sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115402949A (en) |
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2022
- 2022-08-20 CN CN202211002061.2A patent/CN115402949A/en active Pending
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