CN113483626A - 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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- CN113483626A CN113483626A CN202110704763.4A CN202110704763A CN113483626A CN 113483626 A CN113483626 A CN 113483626A CN 202110704763 A CN202110704763 A CN 202110704763A CN 113483626 A CN113483626 A CN 113483626A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 239000011248 coating agent Substances 0.000 title claims abstract description 36
- 238000000576 coating method Methods 0.000 title claims abstract description 36
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 210000003437 trachea Anatomy 0.000 claims description 12
- 239000003973 paint Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 2
- 238000009675 coating thickness measurement Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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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
- 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
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- 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
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- 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 wire clamp, a measuring pin, a base, a sealing ring and a spring, when the measuring device is used, the air pressure in the cylinder body pushes the base, the base drives the measuring pin to move horizontally along the pinhole to pierce a fireproof coating, when the measuring pin reaches the surface of a steel structure, the measuring pin stops moving horizontally, an air bag stops pressurizing, the measuring device is in a pressure balance state, the measuring pin is pulled out, and the measured thickness is read; after the point measurement is completed, the air valve is opened, air pressure is released, the spring pulls the base, and the base drives the measuring needle to return to the initial state to perform the next point measurement.
Description
Technical Field
The invention relates to the technical field of steel structure engineering construction, in particular to a device for measuring the thickness of a steel structure fireproof coating and a construction method thereof.
Background
With the development of the building industry, steel structure engineering is widely applied to high-rise and industrial buildings due to the advantages of light dead weight, good earthquake resistance, high industrial degree, short construction period and the like. However, steel structure engineering has some defects difficult to avoid in fire protection, and its mechanical properties, such as yield point, tensile strength and elastic modulus, are all sharply reduced due to the increase of temperature.
In practical application, steel structure engineering needs to overcome the defects in fire prevention, and fire prevention treatment is carried out, so that the fire resistance limit of a steel structure is improved to the limit range specified by design specifications. The method has the advantages that deformation and collapse of the steel structure caused by rapid temperature rise in fire are prevented, the measures are diversified, and different methods are adopted according to different conditions, such as adopting heat insulation and refractory materials to block flame and directly burn the steel structure, reducing the heat transfer speed and delaying the temperature rise of the steel structure, the strength weakening time and the like. The common fireproof paint comprises ultrathin, thin and thick steel structure fireproof paint, and the steel structure fireproof paint with the fire resistance limit of more than 2 hours needs to be thick.
In order to ensure the construction quality of the steel structure fireproof coating, the spraying thickness of the fireproof coating needs to be detected. Meanwhile, in engineering construction, the height of the upper part of the steel column and the height of the steel beam part are higher, so that the spraying thickness of the fireproof coating at the part is difficult to detect, and the hidden danger of missed detection exists.
Disclosure of Invention
The invention aims to solve the technical problem that the thickness of a fireproof coating of a steel column and a steel beam at a high position is difficult to detect in the prior art, and provides a device for measuring the thickness of the fireproof coating of the steel structure and a construction method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a steel structure fireproof coating thickness measuring device comprises a telescopic rod, a measuring device and a driving device. The measuring device is connected at 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.
Preferably: the telescopic rod comprises a rod body, a screw rod and a thread sleeve. The head 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 cavity 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, an air hole, a needle hole, a connecting piece, a wire clamp, a measuring needle, a base, a sealing ring and a spring. The cylinder body is a closed cavity round tube, an air hole is arranged at the center of one end of the cylinder body, a needle hole is arranged at the center of the other end of the cylinder body, a connecting piece is vertically and directly connected with the lower part of the cylinder body, the connecting piece is a cavity tube 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 of the connecting piece, the wire clamp is of an elastic concave structure, a spring is vertically connected to one side of the air hole in the cylinder body, the outer diameter of the spring is smaller than or equal to the inner diameter of the cylinder body, a base is vertically connected to one side of the spring 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 body, a sealing ring is arranged at the periphery of the concave rib in the middle of the base, the outer diameter of the sealing ring is equal to the inner diameter of the cylinder body, a measuring needle is vertically and is connected with the measuring needle hole which is concentric with the conical needle hole, the measuring needle can horizontally stretch along the needle hole, scales are arranged on the periphery of the measuring needle, the needle point is a zero point of the scales, and the length of the measuring needle is equal to the length obtained by subtracting the thickness of the base from the net length of the inner cavity of the cylinder body and the length of the spring in a free state.
Preferably: the driving device comprises an air bag, an air pipe, an air nozzle, a connector, a tee joint, an air valve and a fixing clamp. The trachea is a cavity tube, the head end of the trachea is vertically connected with an air nozzle, the tail end of the trachea is vertically connected with a connector, the air nozzle is an I-shaped cavity tube, the air nozzle penetrates through the air hole and is clamped on the barrel wall on two sides of the air hole, the upper end of the trachea is fixed with the connector through a wire clamp, the lower end of the trachea is fixed with the rod body through a fixing clamp, the fixing clamp is of an elastic concave structure, one end of the connector is connected with the trachea, the other end of the connector is connected with a tee joint, the tee joint is connected with an air bag on one side far away from the connector, the side end of the tee joint is connected with an air valve, one end of the tee joint connected with the air valve is provided with a thread head, the air valve is a cylinder with an inner thread sleeve, and the inner diameter of the inner thread sleeve of the air valve is equal to the outer diameter of the tee joint.
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 a complete set of connected system, and only need to be connected with the telescopic rod when in use. The method comprises the steps of connecting one end of a lead screw of a 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 coating to be measured, connecting the lead screw of each section of telescopic rod with a wire sleeve, adjusting the length of the telescopic rod, fixing the lower end of the air pipe on a fixing clamp after the telescopic rod is assembled, and enabling an air valve to be in an open state.
S2, positioning the device. Through the telescopic link, rise measuring device to the steel construction height of wanting the measurement, hug closely the fire retardant coating surface that awaits measuring perpendicularly one side of measuring device pinhole.
And S3, starting the driving device. The air valve is closed, the air bag is pressed, the driving device is started, and the inner cavity of the cylinder body is continuously inflated and pressurized.
And S4, measuring the thickness of the fireproof coating. The air pressure in the cylinder body pushes the base, the base drives the measuring needle to move horizontally along the needle hole to pierce the fireproof coating, when the measuring needle reaches the surface of the steel structure, the measuring needle stops moving horizontally, 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 out.
And S5, resetting the device. And opening the air valve, releasing air pressure, pulling the base by the spring, and driving the measuring needle to return to the initial state by the base to measure the next point position.
Compared with the prior art, the invention provides the steel structure fireproof coating thickness measuring device and the construction method thereof, which can be used for detecting the steel structure fireproof coating thickness, particularly the steel column and steel beam fireproof coating thickness at a high position, and are simple to operate, efficient and convenient to use.
Drawings
Fig. 1 and fig. 2 are schematic front vertical views of a steel structure fireproof coating thickness measuring device provided by the invention.
FIG. 3 is a schematic view of a device for measuring the thickness of the steel structure fireproof coating of the present invention when installed in place.
FIG. 4 is a schematic view of the device for measuring the thickness of the steel structure fireproof coating of the present invention when the measurement is completed.
In the figure: 100. the measuring device comprises a telescopic rod, 200, a measuring device, 300, a driving device, 101, a rod body, 102, a lead screw, 103, a thread sleeve, 201, a cylinder body, 202, an air hole, 203, a needle hole, 204, a connecting piece, 205, a line clamp, 206, a measuring needle, 207, a base, 208, a sealing ring, 209, a spring, 301, an air bag, 302, an air pipe, 303, an air nozzle, 304, a connecting head, 305, a tee joint, 306, an air valve, 307 and a fixing clamp
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the device for measuring the thickness of the steel structure fireproof paint of the present invention includes 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 is fixed to the telescopic rod 100.
Preferably: the telescopic rod 100 comprises a rod body 101, a screw rod 102 and a thread 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 external screw thread, the screw sleeve 103 is a hollow tube with an internal screw thread, the external diameter of the screw rod 102 is equal to the internal 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 pin 206, a base 207, a sealing ring 208 and a spring 209. The cylinder 201 is a closed cavity round tube, an air hole 202 is arranged at the center of one end of the cylinder 201, a pinhole 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 tube with an internal screw thread, the internal diameter of the connecting piece 204 is equal to the external diameter of the screw rod 102, a line clamp 205 is arranged at 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 external diameter of the spring 209 is less than or equal to the internal diameter of the cylinder 201, the spring 209 is vertically connected to one side far away from the air hole 202, the base 207 is a cylinder with a concave rib in the middle, the external diameter of the base 207 is less than or equal to the internal diameter of the cylinder 201, a sealing ring 208 is arranged on the periphery of the concave rib in the middle of the base 207, the internal diameter of the sealing ring 208 is equal to the external diameter of the concave rib of the base 207, the external diameter is equal to the external diameter of the concave rib of the base 207, a measuring needle 206 is vertically connected to one far away from the spring 209, the measuring needle 206 is a cylinder with a conical needle head, the outer diameter of the measuring needle 206 is smaller than or equal to the aperture of the pinhole 203, the measuring needle 206 and the pinhole 203 keep concentric, the measuring needle 206 can horizontally stretch and retract along the pinhole 203, scales are arranged on the periphery of the measuring needle 206, the needle point is a zero point of the scales, and the length of the measuring needle 206 is equal to the length obtained by subtracting the thickness of the base 207 from the net length of the inner cavity of the cylinder 201 and the free state of the spring 209.
Preferably: the driving device 300 comprises an air bag 301, an air pipe 302, an air nozzle 303, a connector 304, a tee 305, an air valve 306 and a fixing clip 307. The air pipe 302 is a cavity pipe, the head end of the air pipe 302 is vertically connected with an air nozzle 303, the tail end of the air pipe 302 is vertically connected with a connector 304, the air nozzle 303 is an I-shaped cavity pipe, the air nozzle 303 penetrates through an air hole 202 and is clamped on the wall of the barrel 201 on two sides of the air hole 202, the upper end of the air pipe 302 is fixed with a connector 204 through a line clamp 205, the lower end of the air pipe 302 is fixed with the rod body 101 through a 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 is connected with a tee 305, the tee 305 is connected with the air bag 301 at one side far away from the connector 304, the side end of the tee 305 is connected with an air valve 306, one end of the tee 305 connected with the air valve 306 is provided with a screw head, the air valve 306 is a cylinder with an inner screw sleeve, and the inner diameter of the air valve 306 is equal to the outer diameter of the screw head of the tee 305.
The invention relates to a device for measuring the thickness of a steel structure fireproof coating, which mainly comprises the following implementation steps:
s1, assembling the device. The measuring device 200 and the driving device 300 are a complete set of connected system, and only need to be connected with the telescopic rod 100 when in use. Connecting one end of a screw rod 102 of the telescopic rod with a connecting piece 204, fixing an air pipe 302 in a line clamp 205, determining the length of the telescopic rod 100 according to the height of the steel structure fireproof coating to be measured, connecting the screw rod 102 of each telescopic rod with a screw sleeve 103, adjusting the length of the telescopic rod 100, and after the telescopic rod 100 is assembled, fixing the lower end of the air pipe 302 on a fixing clamp 307, wherein an air valve 306 is in an open state.
S2, positioning the device. Through the telescopic link 100, the measuring device 200 is raised to the steel structure height to be measured, and one side of the device pinhole is vertically attached to the surface of the fireproof coating to be measured.
And 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 body 201 is continuously inflated and pressurized.
And S4, measuring the thickness of the fireproof coating. The air pressure in the cylinder 201 pushes the base 207, the base 207 drives the measuring pin 206 to horizontally move along the pinhole 203 to pierce the fireproof coating, when the measuring pin 206 reaches the surface of the steel structure, the measuring pin 206 stops moving horizontally, the air bag 301 stops pressurizing, the measuring device 200 is in a pressure balance state, the measuring pin 206 is pulled out, and the measured thickness is read.
And 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 pin 206 to return to the initial state to measure the next point position.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a steel construction fire retardant coating thickness measurement device which characterized in that: 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.
2. The steel structure fireproof coating thickness measuring device according to claim 1, characterized in that: the measuring device comprises a cylinder, an air hole, a needle hole, a connecting piece, a wire clamp, a measuring needle, a base, a sealing ring and a spring.
3. The steel structure fireproof coating thickness measuring device according to claim 2, characterized in that: the cylinder body is a closed cavity round tube, an air hole is formed in the center of one end of the cylinder body, a needle hole is formed in the center of the other end of the cylinder body, a connecting piece is vertically connected to the lower portion of the cylinder body, the connecting piece is a cavity tube 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 on one side of the air hole of the connecting piece, the wire clamp is of an elastic concave structure, a spring is vertically connected to 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 to one side of the spring away from the air hole,
the base is a cylinder with a concave rib in the middle, the outer diameter of the base is less than or equal to the inner diameter of the cylinder body, 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 body, one side of the base, far 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 the needle hole, the measuring needle and the needle hole are concentric, the measuring needle can horizontally stretch along the needle hole, scales are arranged on the periphery of the measuring needle, the needle point is a scale zero point, and the length of the measuring needle is equal to the length obtained by subtracting the thickness of the base and the free state of the spring from the net length of the inner cavity of the cylinder.
4. The steel structure fireproof coating thickness measuring device according to claim 1, characterized in that: 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 cavity 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.
5. The steel structure fireproof coating thickness measuring device according to claim 1, characterized in that: the driving device comprises an air bag, an air pipe, an air nozzle, a connector, a tee joint, an air valve and a fixing clamp;
the trachea is cavity tubular product, the trachea head end is connected the air cock perpendicularly, the trachea end is connecting the connector perpendicularly, the air cock is I shape cavity tubular product, the air cock passes the gas pocket and the chucking is on the barrel 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 passes through the fixing clip and is fixed with the pole body, the fixing clip is elasticity concave type structure, connector one end is connected with the trachea, the other end and tee junction, the tee bend is keeping away from connector one side and is connecting the gasbag, the pneumatic valve is connected to the tee bend side, the one end that the pneumatic valve is connected to the tee bend is equipped with the silk head, the cylinder of pneumatic valve for having the internal thread cover, the internal thread cover internal diameter of pneumatic valve equals the external diameter of tee bend silk head.
6. The construction method of the steel structure fireproof paint thickness measuring device according to any one of claims 1 to 5, characterized by comprising the following main steps:
s1, device assembly: the measuring device and the driving device are a complete set of connected system, and only need to be connected with the telescopic rod when in use; connecting one end of a screw rod of a telescopic rod with a connecting piece, fixing an air pipe in a line card, determining the length of the telescopic rod according to the height of the steel structure fireproof coating to be measured, connecting the screw rod of each telescopic rod with a screw 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 a telescopic rod, and vertically attaching one side of a pinhole of the measuring device to the surface of the fireproof coating 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 coating: the air pressure in the cylinder body pushes the base, the base drives the measuring needle to move horizontally along the needle hole to pierce the fireproof coating, when the measuring needle reaches the surface of the steel structure, the measuring needle stops moving horizontally, the air bag stops pressurizing, the measuring device is in a pressure balance state, the measuring needle is pulled out, and the measured thickness is read;
s5, resetting the device: and opening the air valve, releasing air pressure, pulling the base by the spring, and driving the measuring needle to return to the initial state by the base to measure the next point position.
7. The construction method of the steel structure fireproof coating thickness measuring device according to claim 6, wherein S1, 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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| CN113483626B CN113483626B (en) | 2023-12-15 |
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