CN113483626B - Steel structure fireproof coating thickness measuring device and construction method thereof - Google Patents
Steel structure fireproof coating thickness measuring device and construction method thereof Download PDFInfo
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- CN113483626B CN113483626B CN202110704763.4A CN202110704763A CN113483626B CN 113483626 B CN113483626 B CN 113483626B CN 202110704763 A CN202110704763 A CN 202110704763A CN 113483626 B CN113483626 B CN 113483626B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 239000011248 coating agent Substances 0.000 title claims abstract description 14
- 238000000576 coating method Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 239000003973 paint Substances 0.000 claims description 23
- 239000000523 sample Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000009675 coating thickness measurement Methods 0.000 claims 1
- 210000003437 trachea Anatomy 0.000 description 6
- 239000003063 flame retardant Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Building Environments (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a steel structure fireproof coating thickness measuring device and a construction method thereof, wherein the thickness measuring device comprises a telescopic rod, a measuring device and a driving device, the measuring device is connected to the head end of the telescopic rod, the head end of the driving device is connected to the measuring device, and the tail end of the driving device is fixed on the telescopic rod; the measuring device comprises a cylinder body, an air hole, a pinhole, a connecting piece, a line clamp, a measuring needle, a base, a sealing ring and a spring, wherein when the measuring device is used, air pressure in the cylinder body is pushed to the base, the base drives the measuring needle to horizontally move along the pinhole to pierce a fireproof coating, when the measuring needle reaches the surface of a steel structure, the measuring needle stops horizontally moving, an air bag stops pressurizing, the measuring device is in a pressure balance state, the measuring needle is pulled out, and the measuring thickness is read; after the point measurement is completed, the air valve is opened, the air pressure is released, the spring pulls the base, and the base drives the measuring needle to return to the initial state for the next point measurement.
Description
Technical Field
The invention relates to the technical field of steel structure engineering construction, in particular to a steel structure fireproof coating thickness measuring device and a construction method thereof.
Background
With the development of the building industry, the steel structure engineering is widely applied to high-rise and industrial buildings due to the advantages of light dead weight, good anti-seismic performance, high industrialization degree, short construction period and the like. However, steel construction engineering has some unavoidable drawbacks in terms of fire resistance, and its mechanical properties, such as yield point, tensile strength and elastic modulus, are drastically reduced by the increase in temperature.
In practical application, steel construction engineering is required to overcome the defect of fire prevention, and fire prevention treatment is required to improve the fire resistance limit of the steel structure to the limit range specified by design specifications. The measures for preventing the steel structure from deformation and slumping caused by rapid temperature rise in a fire disaster are various, and the key is to adopt different methods according to different conditions, such as adopting heat insulation and refractory materials to obstruct flame to directly burn the steel structure, reducing the heat transfer speed and delaying the time of the temperature rise and the weakening strength of the steel structure, and the like. The common fireproof paint is ultrathin, thin and thick steel structure fireproof paint, and the steel structure fireproof paint with the fire resistance limit of more than 2h needs to be thick.
In order to ensure the construction quality of the fireproof coating for the steel structure, the spraying thickness of the fireproof coating is required to be detected. Meanwhile, in engineering construction, the height of the upper part of the steel column and the steel beam part is higher, so that the detection difficulty of the spraying thickness of the fireproof paint at the part is higher, and hidden dangers of omission are caused.
Disclosure of Invention
The invention aims to solve the technical problem that the thickness of fireproof paint for high-rise steel columns and steel beams is difficult to detect in the prior art, and provides a device for measuring the thickness of the fireproof paint for a steel structure and a construction method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a steel structure fireproof paint thickness measuring device comprises a telescopic rod, a measuring device and a driving device. The measuring device is connected to the head end of the telescopic rod, the head end of the driving device is connected to the measuring device, and the tail end of the driving device is fixed to the telescopic rod.
Preferably: the telescopic rod comprises a rod body, a screw rod and a screw sleeve. The front end of the rod body is vertically connected with a screw rod, the tail end of the rod body is vertically connected with a screw sleeve, the screw rod is provided with an outer screw thread, the screw sleeve is a hollow pipe with an inner screw thread, the outer diameter of the screw rod is equal to the inner diameter of the screw sleeve, the screw rod is matched with the screw sleeve for use, and the length of the telescopic rod is adjusted through the connection combination of the screw rod and the screw sleeve.
Preferably: the measuring device comprises a cylinder body, an air hole, a pinhole, a connecting piece, a line clamp, a measuring needle, a base, a sealing ring and a spring. The cylinder is a closed cavity circular tube, an air hole is arranged at the center of one end of the cylinder, a pin hole is arranged at the center of the other end of the cylinder, the lower part of the cylinder is vertically connected with a connecting piece, the inner diameter of the connecting piece is equal to the outer diameter of a screw rod, a line clamp is arranged on one side of the air hole and is of an elastic concave structure, a spring is vertically connected to one side of the air hole in the cylinder cavity, the outer diameter of the spring is smaller than or equal to the inner diameter of the cylinder, a base is vertically connected to one side of the base, which is far away from the cylinder, of a concave rib of the base, the inner diameter of the sealing ring is equal to the inner diameter of the cylinder, a measuring needle is vertically connected to one side of the base, which is far away from the spring, of the cylinder with a conical needle head, the outer diameter of the measuring needle is smaller than or equal to the aperture of the pin hole, the measuring needle can horizontally stretch along the pin hole, the outer circumference of the measuring needle is provided with scales, the needle head is a scale zero, and the length of the measuring needle is equal to the net length of the cylinder when the thickness of the base and the spring is free.
Preferably: the driving device comprises an air bag, an air pipe, an air tap, a connector, a tee joint, an air valve and a fixing clamp. The trachea is cavity tubular product, the air cock is connected perpendicularly to the trachea head end, the connector is being connected perpendicularly to the trachea end, the air cock is I shape cavity tubular product, the air cock passes the gas pocket and the chucking is on the cylinder wall of gas pocket both sides, the trachea upper end is fixed with the connecting piece through the ply-yarn drill, the trachea lower extreme is fixed with the shaft through the fixing clip, the fixing clip is the concave structure of elasticity, connector one end is connected with the trachea, the other end is connected with the tee bend, the gasbag is being connected in joint one side of keeping away from, the pneumatic valve is connected to the tee bend side, the one end of tee bend pneumatic valve is equipped with the wire head, the pneumatic valve is the cylinder that has interior silk cover, silk cover internal diameter equals tee bend wire head external diameter in the pneumatic valve.
The invention relates to a construction method for measuring the thickness of a steel structure fireproof coating, which mainly comprises the following implementation steps:
s1, assembling the device. The measuring device and the driving device are connected systems which are used in a whole set, and the measuring device and the driving device only need to be connected with the telescopic rod when in use. One end of a screw rod of each telescopic rod is connected with a connecting piece, an air pipe is fixed in the line clamp, the length of the telescopic rod is determined according to the height of the steel structure fireproof paint to be measured, the screw rods of all the telescopic rods are connected with a wire sleeve, the length of the telescopic rods is adjusted, after the telescopic rods are assembled, the lower end of the air pipe is fixed on the fixing clamp, and the air valve is in an open state.
S2, positioning the device. And lifting the measuring device to the height of the steel structure to be measured through the telescopic rod, and vertically clinging one side of a pinhole of the measuring device to the surface of the fireproof paint to be measured.
S3, starting the driving device. Closing the air valve, pressing the air bag, starting the driving device, and continuously inflating and pressurizing the inner cavity of the cylinder.
S4, measuring the thickness of the fireproof paint. The air pressure in the cylinder pushes the base, the base drives the measuring needle to horizontally move along the needle hole to pierce the fireproof coating, when the measuring needle reaches the surface of the steel structure, the measuring needle stops horizontally moving, the air bag stops pressurizing, the measuring device is in a pressure balance state, the measuring needle is pulled out, and the measuring thickness is read.
S5, resetting the device. Opening the air valve, releasing the air pressure, pulling the base by the spring, and driving the probe to return to the initial state by the base to perform the next point position measurement.
Compared with the prior art, the invention provides the steel structure fireproof paint thickness measuring device and the construction method thereof, which can detect the thickness of the steel structure fireproof paint, in particular to the thickness of the steel column and the steel beam fireproof paint at high positions, and has simple operation and high efficiency and convenience in use.
Drawings
Fig. 1 and fig. 2 are schematic front elevation views of a device for measuring thickness of a fireproof coating of a steel structure according to the present invention.
Fig. 3 is a schematic view of a steel structure fire retardant coating thickness measuring device of the present invention in place.
Fig. 4 is a schematic diagram of a steel structure fire-retardant coating thickness measuring device according to the present invention when the measurement is completed.
In the figure: 100. the telescopic link, 200, measuring device, 300, drive device, 101, shaft, 102, lead screw, 103, wire sleeve, 201, barrel, 202, air hole, 203, pinhole, 204, connector, 205, line card, 206, needle, 207, base, 208, sealing ring, 209, spring, 301, air bag, 302, air pipe, 303, air tap, 304, connector, 305, tee, 306, air valve, 307, fixing clip
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the thickness measuring device for the fireproof paint of the steel structure of the present invention comprises a telescopic rod 100, a measuring device 200 and a driving device 300. The measuring device 200 is connected to the head end of the telescopic rod 100, the head end of the driving device 300 is connected to the measuring device 200, and the tail end of the driving device is fixed to the telescopic rod 100.
Preferably: the telescopic rod 100 comprises a rod body 101, a screw 102 and a screw sleeve 103. The head end of the rod body 101 is vertically connected with a screw rod 102, the tail end of the rod body is vertically connected with a screw sleeve 103, the screw rod 102 is provided with an outer screw thread, the screw sleeve 103 is a hollow tube provided with an inner screw thread, the outer diameter of the screw rod 102 is equal to the inner diameter of the screw sleeve 103, the screw rod 102 is matched with the screw sleeve 103 for use, and the length of the telescopic rod 100 is adjusted through the connection combination of the screw rod 102 and the screw sleeve 103.
Preferably: the measuring device 200 comprises a cylinder 201, an air hole 202, a needle hole 203, a connecting piece 204, a line clamp 205, a measuring needle 206, a base 207, a sealing ring 208 and a spring 209. The cylinder 201 is a closed cavity circular tube, an air hole 202 is arranged at the center of one end of the cylinder 201, a pin hole 203 is arranged at the center of the other end of the cylinder 201, a connecting piece 204 is vertically connected to the lower part of the cylinder 201, the connecting piece 204 is a cavity tubular with inner threads, the inner diameter of the connecting piece 204 is equal to the outer diameter of a screw rod 102, a line clamp 205 is arranged on one side of the air hole 203 of the connecting piece 204, the line clamp 205 is of an elastic concave structure, a spring 209 is vertically connected to one side of the air hole 202 in the cavity of the cylinder 201, the outer diameter of the spring 209 is smaller than or equal to the inner diameter of the cylinder 201, a base 207 is vertically connected to one side of the spring 209, the base 207 is a cylinder with a concave rib in the middle, the outer diameter of the base 207 is smaller than or equal to the inner diameter of the cylinder 201, a sealing ring 208 is arranged on the periphery of the concave rib of the base 207, the outer diameter of the sealing ring 208 is equal to the inner diameter of the cylinder 201, the base 207 is vertically connected to a measuring needle 206 on one side of the base 207, the measuring needle 206 is a cylinder with a conical needle, the outer diameter of the measuring needle 206 is smaller than or equal to the aperture of the cylinder 203, the measuring needle 206 and the needle hole 203 is kept concentric with the pin 203, the needle 206 can horizontally stretch along the needle hole 203, the needle 206 is provided with a scale, the needle point, the needle 207 is equal to the needle 207, the needle is equal to the needle 207, and the needle 207 is equal to the scale, when the needle is equal to the zero point and the free length of the base 201 is subtracted from the needle length of the cylinder 201.
Preferably: the driving device 300 comprises an air bag 301, an air pipe 302, an air nozzle 303, a connector 304, a tee joint 305, an air valve 306 and a fixing clamp 307. The air pipe 302 is a cavity pipe, the air nozzle 303 is vertically connected to the head end of the air pipe 302, the tail end of the air pipe 302 is vertically connected with the connector 304, the air nozzle 303 is an I-shaped cavity pipe, the air nozzle 303 penetrates through the air hole 202 and is clamped on the wall of the cylinder 201 on two sides of the air hole 202, the upper end of the air pipe 302 is fixed with the connecting piece 204 through the line clamp 205, the lower end of the air pipe 302 is fixed with the rod body 101 through the fixing clamp 307, the fixing clamp 307 is of an elastic concave structure, one end of the connector 304 is connected with the air pipe 302, the other end of the connector 304 is connected with the tee 305, one side of the tee 305, far away from the connector 304, is connected with the air bag 301, the side end of the tee 305 is connected with the air valve 306, one end of the tee 305 connected with the air valve 306 is provided with a wire head, the air valve 306 is a cylinder with an inner wire sleeve, and the inner wire sleeve inner diameter of the air valve 306 is equal to the outer diameter of the wire head of the tee 305.
The invention relates to a thickness measuring device for steel structure fireproof paint, which mainly comprises the following implementation steps:
s1, assembling the device. The measuring device 200 and the driving device 300 are integrated systems which are used in a whole set, and only the measuring device and the driving device are required to be connected with the telescopic rod 100 when in use. One end of a screw rod 102 of the telescopic rod is connected with a connecting piece 204, an air pipe 302 is fixed in a wire clamp 205, the length of the telescopic rod 100 is determined according to the height of the steel structure fireproof paint to be measured, the screw rods 102 of all sections of telescopic rods are connected with a screw sleeve 103, the length of the telescopic rod 100 is adjusted, after the telescopic rod 100 is assembled, the lower end of the air pipe 302 is fixed on a fixing clamp 307, and an air valve 306 is in an open state.
S2, positioning the device. The measuring device 200 is lifted to the height of the steel structure to be measured by the telescopic rod 100, and one side of a pinhole of the device is vertically clung to the surface of the fireproof paint to be measured.
S3, starting the driving device. The air valve 306 is closed, the air bag 301 is pressed, the driving device 300 is started, and the inner cavity of the cylinder 201 is continuously inflated and pressurized.
S4, measuring the thickness of the fireproof paint. The air pressure in the cylinder 201 pushes the base 207, the base 207 drives the probe 206 to move horizontally along the pinhole 203 to pierce the fireproof coating, when the probe 206 reaches the surface of the steel structure, the probe 206 stops moving horizontally, the air bag 301 stops pressurizing, the measuring device 200 is in a pressure balance state, the probe 206 is pulled out, and the measuring thickness is read.
S5, resetting the device. The air valve 306 is opened, the air pressure is released, the spring 209 pulls the base 207, and the base 207 drives the measuring needle 206 to return to the initial state for the next point position measurement.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. The utility model provides a steel construction fire prevention coating thickness measurement device which characterized in that: the device comprises a telescopic rod, a measuring device and a driving device, wherein the measuring device is connected to the head end of the telescopic rod, the head end of the driving device is connected to the measuring device, the tail end of the driving device is fixed on the telescopic rod, the measuring device comprises a cylinder body, an air hole, a needle hole, a connecting piece, a line clamp, a measuring needle, a base, a sealing ring and a spring, and the driving device comprises an air bag, an air pipe, an air tap, a connector, a tee joint, an air valve and a fixing clip;
the telescopic rod comprises a rod body, a screw rod and a screw sleeve, wherein the head end of the rod body is vertically connected with the screw rod, the tail end of the rod body is vertically connected with the screw sleeve, the screw rod is provided with an outer screw thread, the screw sleeve is a hollow pipe with an inner screw thread, the outer diameter of the screw rod is equal to the inner diameter of the screw sleeve, the screw rod is matched with the screw sleeve for use, and the length of the telescopic rod is adjusted through the connection combination of the screw rod and the screw sleeve;
the cylinder body is a closed cavity circular tube, an air hole is arranged at the center of one end of the cylinder body, a pin hole is arranged at the center of the other end of the cylinder body, the lower part of the cylinder body is vertically connected with a connecting piece, the connecting piece is a cavity tubular product with an inner screw thread, the inner diameter of the connecting piece is equal to the outer diameter of a screw rod, a wire clamp is arranged at one side of the air hole and is of an elastic concave structure, a spring is vertically connected at one side of the air hole in the cylinder body cavity, the outer diameter of the spring is smaller than or equal to the inner diameter of the cylinder body, a base is vertically connected at one side of the spring far away from the air hole,
the base is a cylinder with a concave rib in the middle, the outer diameter of the base is smaller than or equal to the inner diameter of the cylinder, a sealing ring is arranged on the periphery of the concave rib in the middle of the base,
the inner diameter of the sealing ring is equal to the outer diameter of the concave rib of the base, the outer diameter of the sealing ring is equal to the inner diameter of the cylinder, one side of the base away from the spring is vertically connected with the measuring needle,
the measuring needle is a cylinder with a conical needle head, the outer diameter of the measuring needle is smaller than or equal to the aperture of a needle hole, the measuring needle and the needle hole are kept concentric, the measuring needle can horizontally stretch and retract along the needle hole, the periphery of the measuring needle is provided with scales, the needle point is a scale zero point, and the length of the measuring needle is equal to the length of the inner cavity of the cylinder body when the thickness of the base and the free state of the spring are subtracted;
the air pipe is cavity tubular product, the air cock is connected perpendicularly to the air pipe head end, the connector is being connected perpendicularly to the air pipe end, the air cock is I shape cavity tubular product, the air cock passes the gas pocket and the chucking is on the cylinder wall of gas pocket both sides, the air pipe upper end is fixed with the connecting piece through the ply-yarn drill, the air pipe lower extreme is fixed with the shaft through the fixing clip, the fixing clip is the concave structure of elasticity, connector one end is connected with the air pipe, the other end is connected with the tee bend, the gasbag is being connected in tee bend one side of keeping away from, the pneumatic valve is connected to the tee bend side, the one end of tee bend connecting the pneumatic valve is equipped with the wire head, the pneumatic valve is the cylinder that has interior silk cover, silk cover internal diameter equals the tee bend silk head external diameter in the pneumatic valve.
2. The construction method of a steel structure fireproof paint thickness measuring device according to claim 1, comprising the following main steps:
s1, assembling a device: the measuring device and the driving device are connected systems which are used in a whole set, and the measuring device and the driving device are only connected with the telescopic rod when in use; connecting one end of a screw rod of each telescopic rod with a connecting piece, fixing an air pipe in a wire clamp, determining the length of the telescopic rod according to the height of the steel structure fireproof paint to be measured, connecting the screw rods of each telescopic rod with a wire sleeve, adjusting the length of the telescopic rod, and fixing the lower end of the air pipe on a fixing clamp after the telescopic rod is assembled;
s2, positioning the device: lifting the measuring device to the height of the steel structure to be measured through the telescopic rod, and vertically clinging one side of a pinhole of the measuring device to the surface of the fireproof paint to be measured;
s3, starting a driving device: closing the air valve, pressing the air bag, starting the driving device, and continuously inflating and pressurizing the inner cavity of the cylinder;
s4, measuring the thickness of the fireproof paint: the air pressure in the cylinder pushes the base, the base drives the probe to horizontally move along the pinhole to pierce the fireproof coating, when the probe reaches the surface of the steel structure, the probe stops horizontally moving, the air bag stops pressurizing, the measuring device is in a pressure balance state, the probe is pulled out, and the measuring thickness is read;
s5, resetting the device: opening the air valve, releasing the air pressure, pulling the base by the spring, and driving the probe to return to the initial state by the base to perform the next point position measurement.
3. The construction method of a steel structure fireproof paint thickness measuring device according to claim 2, wherein in the device assembling process, an air valve on the air pipe is in an open state.
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| CN202110704763.4A CN113483626B (en) | 2021-06-24 | 2021-06-24 | Steel structure fireproof coating thickness measuring device and construction method thereof |
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| CN202110704763.4A CN113483626B (en) | 2021-06-24 | 2021-06-24 | Steel structure fireproof coating thickness measuring device and construction method thereof |
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| CN113483626A CN113483626A (en) | 2021-10-08 |
| CN113483626B true CN113483626B (en) | 2023-12-15 |
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