CN116180922A - Steel structure fireproof plate and keel-free construction method thereof - Google Patents

Steel structure fireproof plate and keel-free construction method thereof Download PDF

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Publication number
CN116180922A
CN116180922A CN202310184858.7A CN202310184858A CN116180922A CN 116180922 A CN116180922 A CN 116180922A CN 202310184858 A CN202310184858 A CN 202310184858A CN 116180922 A CN116180922 A CN 116180922A
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CN
China
Prior art keywords
plate
fireproof plate
fireproof
steel column
keel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310184858.7A
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Chinese (zh)
Inventor
郭伟
王冕
王众望
刘艳超
何巍
赵猛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Construction Group Co Ltd
Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd
Original Assignee
China Railway Construction Group Co Ltd
Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd
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Publication date
Application filed by China Railway Construction Group Co Ltd, Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd filed Critical China Railway Construction Group Co Ltd
Priority to CN202310184858.7A priority Critical patent/CN116180922A/en
Publication of CN116180922A publication Critical patent/CN116180922A/en
Pending legal-status Critical Current

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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
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • 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
    • E04B1/945—Load-supporting structures specially adapted therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Building Environments (AREA)

Abstract

The invention discloses a steel structure fireproof plate and a keel-free construction method thereof. The beneficial effects of the invention are as follows: the fireproof plate is adopted to replace fireproof paint, the surface flatness of the column is high, the construction of decorative paint can be carried out only by simply processing the joint position, and the decorative effect is good; the fireproof plate is fixed by bolts on site by adopting a keel-free construction technology, so that a large number of keel construction operations are omitted, the assembly is convenient, and the connection is reliable; the novel steel structure fireproof plate has no keel construction technology, and the stud is adopted to replace the traditional steel keel, so that the construction period is shortened, the construction cost is reduced, the consumption of steel is reduced, and the effects of environmental protection, energy conservation and green construction are achieved; the bolts are adopted as main stress members, so that the stress and connection modes are simple; the fireproof plate is prefabricated in a factory, and compared with fireproof paint, the fireproof plate has the advantages of no wet operation in site, reduced influence of spraying on environment, and good environment-friendly effect.

Description

Steel structure fireproof plate and keel-free construction method thereof
Technical Field
The invention relates to a fireproof plate, in particular to a steel structure fireproof plate and a keel-free construction method thereof, and belongs to the technical field of building protection construction.
Background
The steel structure is a very main building structure type in modern buildings, and has the advantages of high strength, light dead weight, good rigidity, strong toughness and the like. But the steel structure has poor fireproof performance, and the common practice is to spray fireproof paint on the surface of the steel structure to solve the fireproof problem of the steel structure.
The fireproof paint has poor heat shock resistance and especially has poor fireproof decoration effect on public building with appearance decoration requirement. The steel structure fireproof plate (ALC) is used as an effective fireproof material and has the characteristics of incombustibility, innocuity, good durability, light weight, neat appearance, convenient construction and the like, and the traditional fixing mode is a mode of fixing the fireproof plate outside the steel structure by installing keels (vertical keels, transverse keels and corner keels) outside the steel structure. However, this method has long construction time and wastes keel material.
Disclosure of Invention
The invention aims to solve at least one technical problem and provide a steel structure fireproof plate and a keel-free construction method thereof.
The invention realizes the above purpose through the following technical scheme: a steel structure fireproof plate comprises a steel column and a fireproof plate;
the fireproof plates are arranged in a layered mode, the fireproof plates are steam pressurized concrete plates, and the steel columns are arranged vertically;
the fireproof plate is tightly attached to the side edges of the steel columns, through holes are formed in four corners of the fireproof plate, fixing bolts of the bolt connecting pieces are welded on the side edges of the steel columns, and the fixing bolts of the bolt connecting pieces penetrate through the through holes and are screwed with fastening nuts of the bolt connecting pieces.
As still further aspects of the invention: the inner side of the fireproof plate is coated with a high-temperature-resistant adhesive.
As still further aspects of the invention: and the joint between the upper fireproof plate and the lower fireproof plate is filled with fireproof jointing agent.
As still further aspects of the invention: and fiber mesh cloth for resisting alkali in the fire-proof mortar is adhered to the outer side of the joint between the upper fireproof plate and the lower fireproof plate.
As still further aspects of the invention: the round groove is formed at the perforation position of the fireproof plate in an expanding mode, and plugging mortar is filled in the groove.
The construction method of the steel structure fireproof plate without keels comprises the following steps:
firstly, deepening design, namely selecting proper screw and bolt specifications, length and spacing through calculation according to the section of a steel column, the width and thickness of a fireproof plate, and confirming a deepening design drawing through an original design unit;
step two, processing the plate, namely cutting the fireproof plate in the length direction of the fireproof plate by a professional worker according to the section size of the steel column after the fireproof plate is transported to the site, wherein the width of the plate is one more than the thickness of the steel column, and carrying for the second time by a constructor according to a construction partition during installation, and placing the fireproof plate near the steel column by the worker;
step three, cleaning the working face, cleaning the joint part of the steel column and the fireproof plate surface, cleaning up pollutants such as floating ash, sand, soil, crisp crust and the like on the steel column, and removing mortar, concrete blocks and the like protruding out of the steel column;
measuring and paying off, paying off at a leading point according to the main control line, arranging a control line on the surface of the finished steel column by using a cross positioning line of an ink fountain popup bolt and a fireproof plate, and punching a sample;
fifthly, welding the screw rod, namely polishing paint on the surface of the steel column by using a polisher according to the paying-off position of the bolt, and welding the screw rod and the steel column by adopting stud welding;
step six, punching a fireproof plate, namely drilling a through hole with the diameter being 3-5mm larger than the diameter of the screw rod by using an electric hand drill according to the welding position of the screw rod on site, and punching a circular groove with the diameter being 90-100mm at the fixed position of the fireproof plate and the straight screw rod, wherein the depth is 23-26mm;
step seven, the plates are installed and fixed, and before the plates are installed, adhesive is uniformly coated on the joint of the structural wall column, the side surface of the plate in place and the back of the currently installed plate; sheathing the straight-line screw rods welded in advance into the holes of the fireproof plate, adjusting the positions of the plates, staggering, bonding the plates by adopting an adhesive, measuring the deviation of the fireproof plate at any time by using a laser level vertical instrument and a 2m guiding rule, timely adjusting if the deviation exists, screwing nuts after checking and correcting, and sequentially installing the rest plates from bottom to top until all the plates are installed;
and step eight, seam treatment and repair, wherein the special repairing agent is used for plugging the bolt holes, and the special adhesive is used for repairing the defective positions of the laths, so that the flatness of the plate surface and the clear corners are ensured. Repairing the joint with special high temperature resistant adhesive, and adhering alkali resistant fiber mesh cloth with width of 90-110 mm.
The beneficial effects of the invention are as follows: the fireproof plate is adopted to replace fireproof paint, the surface flatness of the column is high, the construction of decorative paint can be carried out only by simply processing the joint position, and the decorative effect is good; compared with the fireproof paint, the fireproof plate has higher heat shock resistance and better fireproof effect; the fireproof plate is fixed by bolts on site by adopting a keel-free construction technology, so that a large number of keel construction operations are omitted, the assembly is convenient, and the connection is reliable; the novel steel structure fireproof plate has the advantages that the stud is adopted to replace the traditional steel keel, so that the construction period is shortened, the investment of keel construction is reduced compared with the traditional construction process, the construction cost is reduced, the consumption of steel is reduced, and the environment-friendly and energy-saving construction effect is achieved; the bolts are adopted as main stress components, the stress and connection modes are simple, and the safety and reliability are realized through scientific stress calculation; the fireproof plate is prefabricated in a factory, and compared with fireproof paint, the fireproof plate has the advantages of no wet operation in site, reduced influence of spraying on environment, and good environment-friendly effect.
Drawings
FIG. 1 is a schematic plan view of a fire-proof plate of steel structure according to the present invention;
FIG. 2 is a schematic view of a vertical face of a fire-proof plate with a steel structure according to the present invention;
FIG. 3 is a schematic view of the construction flow of the present invention.
In the figure: 1. steel column, 2, fire-proof plate, 3, binder, 4, bolted connection spare, 5, shutoff mortar, 6, fire-proof pointing agent, 7, fibre net cloth.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 to 2, a steel structure fireproof plate and a keel-free construction method thereof comprise a steel column 1 and a fireproof plate 2;
the fireproof plates 2 are arranged in a layered mode, the fireproof plates 2 are steam pressurized concrete plates, and the steel columns 1 are arranged vertically;
the fireproof plate 2 is tightly attached to the side edges of the steel column 1, through holes are formed in four corners of the fireproof plate 2, fixing bolts of the bolt connecting pieces 4 are welded on the side edges of the steel column 1, and the fixing bolts of the bolt connecting pieces 4 penetrate through the through holes and are screwed with fastening nuts of the bolt connecting pieces 4.
Example two
As shown in fig. 1 to 2, this embodiment includes, in addition to all the technical features of the first embodiment, the following steps:
the inner side of the fireproof plate 2 is coated with a high-temperature-resistant adhesive 3, so that the firmness of the joint is improved.
The joint between the upper and lower fireproof plates 2 is filled with fireproof jointing agent 6.
The outer side of the joint between the fireproof plates 2 is adhered with a fiber mesh 7 for resisting alkali in the fireproof mortar.
The perforated part of the fireproof plate 2 is provided with a circular groove, and the groove is filled with plugging mortar 5.
Example III
As shown in fig. 3, a steel structure fireproof plate, the keel-free construction method thereof comprises the following steps:
firstly, deepening design, namely selecting proper screw and bolt specifications, length and spacing through calculation according to the section of a steel column 1, the width and thickness of a fireproof plate 2, and confirming a deepening design drawing through an original design unit;
step two, processing the plates, namely after the fireproof plate 2 is transported to the site, cutting the fireproof plate 2 by a professional worker according to the section size of a steel column, wherein the width of the plate is one more plate thickness than that of the steel column, and carrying for the second time by a constructor according to a construction partition during installation, and placing the fireproof plate 2 near the steel column by the worker;
step three, cleaning the working surface, cleaning the joint part of the steel column 1 and the plate surface of the fireproof plate 2, cleaning up pollutants such as floating ash, sand, soil, crisp crust and the like on the steel column, and removing mortar, concrete blocks and the like protruding out of the steel column;
measuring and paying off, paying off at a leading point according to a main control line, arranging a control line on the surface of the finished steel column by using a cross positioning line of an ink fountain popup bolt and the fireproof plate 2, and punching a sample;
fifthly, welding the screw rod, namely polishing paint on the surface of the steel column by using a polisher according to the paying-off position of the bolt, and welding the screw rod and the steel column by adopting stud welding;
step six, punching a fireproof plate, namely, punching a through hole with the diameter being 3-5mm larger than the diameter of the screw rod by using an electric hand drill according to the welding position of the screw rod on site, and punching a circular groove with the diameter being 90-100mm at the fixed position of the fireproof plate 2 and the straight screw rod, wherein the depth is 23-26mm;
step seven, the plates are installed and fixed, and before the plates are installed, adhesive is uniformly coated on the joint of the structural wall column, the side surface of the plate in place and the back of the currently installed plate; sheathing the straight-line screw rods welded in advance into the holes of the fireproof plate 2, adjusting the positions of the plates, arranging in a staggered manner, bonding the plates by adopting the bonding agent 3, measuring the deviation of the fireproof plate at any time by using the laser level vertical instrument and the 2m guiding rule, if the deviation is timely adjusted, screwing the nuts after checking and correcting, and sequentially installing the rest plates from bottom to top until all the installation is completed;
and step eight, seam treatment and repair, wherein the special repairing agent is used for plugging the bolt holes, and the special adhesive is used for repairing the defective positions of the laths, so that the flatness of the plate surface and the clear corners are ensured. Repairing the joint with special high temperature resistant adhesive, and adhering alkali resistant fiber mesh cloth with width of 90-110 mm.
Working principle: the screw rod is welded on the steel column outside the steel column through stud welding, and the fireproof plate with the holes is fastened by nuts, so that the aim of fireproof of the steel structure is fulfilled. The mode does not need keel construction, saves keel materials, quickens construction speed, improves construction quality, has good surface evenness, and can carry out decoration construction by simple treatment compared with the traditional fireproof paint.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. A steel construction PLASTIC LAMINATED, its characterized in that: comprises a steel column (1) and a fireproof plate (2);
the fireproof plate (2) is arranged in a layered mode, the fireproof plate (2) is a steam pressurized concrete plate, and the steel column (1) is arranged vertically;
the fireproof plate (2) is tightly attached to the side edge of the steel column (1), through holes are formed in four corners of the fireproof plate (2), fixing bolts of the bolt connecting piece (4) are welded on the side edge of the steel column (1), and the fixing bolts of the bolt connecting piece (4) penetrate through the through holes and are screwed with fastening nuts of the bolt connecting piece (4).
2. A steel structure fire protection plate according to claim 1, characterized in that: the inner side of the fireproof plate (2) is coated with a high-temperature-resistant adhesive (3).
3. A steel structure fire protection plate according to claim 1, characterized in that: and a fireproof pointing agent (6) is filled at the joint between the fireproof plates (2) at the upper layer and the lower layer.
4. A steel structure fire protection plate according to claim 1, characterized in that: and fiber mesh cloth (7) for resisting alkali in the fire-proof mortar is adhered to the outer side of the joint between the upper layer and the lower layer of the fire-proof plate (2).
5. A steel structure fire protection plate according to claim 1, characterized in that: the round grooves are formed in the positions, provided with the through holes, of the fireproof plate (2), and plugging mortar (5) is filled in the grooves.
6. A keel-free construction method of a steel structure fireproof plate based on the method of claim 1, which is characterized in that: the keel-free construction method comprises the following steps of:
firstly, deepening design, namely selecting proper screw and bolt specifications, length and spacing through calculation according to the section of a steel column (1), the width and thickness of a fireproof plate (2), wherein a deepening design drawing is required to be confirmed by an original design unit;
step two, processing the plate, namely after the fireproof plate (2) is transported to the site, cutting the fireproof plate (2) by a professional worker according to the section size of the steel column, wherein the width of the plate is one more plate thickness than that of the steel column, and carrying for the second time by a constructor according to a construction partition during installation, wherein the fireproof plate (2) is placed near the steel column by the worker;
step three, cleaning the working surface, cleaning the joint part of the steel column (1) and the plate surface of the fireproof plate (2), cleaning up pollutants such as floating ash, sand, soil, crisp crust and the like on the steel column, and removing mortar, concrete blocks and the like protruding out of the steel column;
measuring and paying off, paying off at a leading point according to the main control line, arranging a control line on the surface of the finished steel column by using a cross positioning line of an ink fountain popup bolt and a fireproof plate (2), and punching a sample;
fifthly, welding the screw rod, namely polishing paint on the surface of the steel column by using a polisher according to the paying-off position of the bolt, and welding the screw rod and the steel column by adopting stud welding;
step six, punching a fireproof plate, namely, drilling a through hole with the diameter being 3-5mm larger than the diameter of the screw rod by using an electric hand drill according to the welding position of the screw rod on site, and punching a circular groove with the diameter being 90-100mm at the fixed position of the fireproof plate (2) and the straight screw rod, wherein the depth is 23-26mm;
step seven, the plates are installed and fixed, and before the plates are installed, adhesive is uniformly coated on the joint of the structural wall column, the side surface of the plate in place and the back of the currently installed plate; sheathing the straight-line screw rods welded in advance into the holes of the fireproof plate (2), adjusting the positions of the plates, arranging the plates in a staggered way, bonding the plates by adopting the bonding agent (3), measuring the deviation of the fireproof plate at any time by using the laser level vertical instrument and the 2m guiding rule, if the deviation is timely adjusted, checking and correcting, screwing nuts, and sequentially installing the rest plates from bottom to top until all the plates are installed;
and step eight, seam treatment and repair, wherein the special repairing agent is used for plugging the bolt holes, and the special adhesive is used for repairing the defective positions of the laths, so that the flatness of the plate surface and the clear corners are ensured. Repairing the joint with special high temperature resistant adhesive, and adhering alkali resistant fiber mesh cloth with width of 90-110 mm.
CN202310184858.7A 2023-02-20 2023-02-20 Steel structure fireproof plate and keel-free construction method thereof Pending CN116180922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310184858.7A CN116180922A (en) 2023-02-20 2023-02-20 Steel structure fireproof plate and keel-free construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310184858.7A CN116180922A (en) 2023-02-20 2023-02-20 Steel structure fireproof plate and keel-free construction method thereof

Publications (1)

Publication Number Publication Date
CN116180922A true CN116180922A (en) 2023-05-30

Family

ID=86450397

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310184858.7A Pending CN116180922A (en) 2023-02-20 2023-02-20 Steel structure fireproof plate and keel-free construction method thereof

Country Status (1)

Country Link
CN (1) CN116180922A (en)

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