Steel structure truss plate bottom heat preservation construction structure
The steel structure truss slab bottom insulation construction structure addresses rapid heat dissipation issues by using a steel mesh and polyurethane insulation, along with a clamping and tensioning system for reinforcing bars, ensuring stable concrete strength and safe, efficient winter construction.
Patent Information
- Application Number
- CN202411601409.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2024-12-24
AI Technical Summary
In winter construction of steel structure truss plates, the lack of effective insulation at the bottom of the truss plate leads to rapid heat dissipation, affecting concrete strength growth and increasing the risk of quality accidents due to inadequate concrete maintenance, especially in cold regions.
A steel structure truss slab bottom insulation construction structure is implemented, featuring a steel mesh between steel beams with polyurethane insulation material, and a clamping and tensioning system for reinforcing bars, along with an electric heating belt to maintain heat and stabilize the construction process.
The solution provides effective insulation at the bottom of the truss plate, stabilizing concrete strength growth, reducing fire hazards, and simplifying the construction process while ensuring safety and economic benefits.
Smart Images
Figure CN119177783A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of steel structure truss plate construction, and specifically discloses a steel structure truss plate bottom insulation construction structure. Background Art
[0002] Steel structure has the advantages of fast construction, light weight, good earthquake resistance, environmental protection and durability. At present, steel structure has been widely accepted worldwide, and more and more steel structure projects are appearing in new construction projects. However, in actual construction, especially in the north where winter is colder, concrete construction of steel structure truss plate has become a difficult problem in construction. The construction method is to weld truss steel bars on galvanized steel plates of different thicknesses, install water and electricity pipelines on the steel skeleton, and then pour concrete. In winter construction, concrete insulation is the top priority, but because the truss plate material is steel, the thermal conductivity is large and the heat dissipation is fast, which brings great difficulties to the winter concrete maintenance work. If the concrete maintenance work is not done well, it is very likely that the later strength growth of the concrete will be affected and the design strength requirements cannot be met, thus causing quality accidents. The existing public technology often adopts the negative temperature described in the "Winter Construction Code for Building Engineering" JGJ104-2011 Curing method and electric heating method, but the above two methods are that the negative temperature curing method cannot control the curing process. Once there is a problem with the quality of concrete, it is very easy to cause the concrete to freeze, and it can only be applied to parts where the concrete strength requirements are not high; the electric heating method has high requirements on the power load, and it is not easy to meet the corresponding requirements on the construction site, and the cost is high. In the specific operation, the traditional method of truss slab concrete construction generally adopts the measures of structural closure and top covering. The closure materials generally use colored strips of cloth, rock wool blankets, etc., and the upper part of the truss slab concrete is generally covered with rock wool blankets. However, there are more strong winds in winter construction. Steel structures generally have higher floors and larger spans. The use of plastic sheets and other materials for external closure is very easy to be blown away by the wind. The fire resistance of the closure material is difficult to reach Class A. The welding slag dropped from the upper welding operation of the structure is easy to cause a fire. The most important thing is that the bottom material of the truss plate is steel with a large thermal conductivity. Only the upper concrete is covered, and there is no insulation measure for the bottom of the truss plate. The heat is dissipated from the bottom, and there is a lack of effective insulation measures for the bottom of the truss plate. Summary of the invention
[0003] The purpose of the present invention is to provide a steel structure truss slab bottom insulation construction structure to solve the technical problems mentioned in the above background technology.
[0004] To achieve the above object, the present invention adopts the following technical solution: The truss plate has a plurality of steel bars which are fixed to the bottom of the truss plate and a plurality of steel bars which are connected to the bottom of the truss plate. , a plurality of first curved strips are enclosed to form a hole-shaped limiting space for fixing one end of the steel bar section, and threads are provided on the outer surface of the first curved strip and the outer periphery of the connecting rod, and the first clamping nut is threadedly sleeved with the sleeve, and the steel beam web is provided with a through hole, and the two ends of the steel bar pass through the through holes respectively, and a tensioning component is provided at both ends of the steel bar, and the tensioning component includes a bottom rod, a clamping component arranged at one end of the bottom rod, and a second clamping nut arranged on the clamping component, and the clamping component includes a plurality of second curved strips of the same specifications, and the arc openings of the plurality of second curved strips are relatively enclosed to form a tubular structure, one end of the second curved strip is connected and fixed to the end of the bottom rod, and the plurality of second curved strips are enclosed to form a hole-shaped limiting space for fixing the steel bar section away from the end of the docking component, and threads are provided on the outer surface of the second curved strip and the outer periphery of the bottom rod, and the second clamping nut is threadedly sleeved with the clamping component.
[0005] Furthermore, the steel beam is an I-beam, and a plurality of steel beams are evenly spaced and arranged in parallel.
[0006] Furthermore, the thermal insulation material is a polyurethane board or an extruded board.
[0007] Furthermore, the docking components and the tensioning components are both steel components.
[0008] Furthermore, the bottom rod is a hollow rod-shaped structure.
[0009] Furthermore, a retaining edge is provided on the outer periphery of one end of the second arc-shaped strip away from the bottom rod.
[0010] Furthermore, the truss plate is provided with an electric heating belt.
[0011] Compared with the prior art, the present invention has the following characteristics and beneficial effects: The present invention provides a heat preservation structure arranged at the bottom of the truss plate, the heat preservation structure includes a steel mesh arranged between steel beams, and a multilayer plate and heat preservation material arranged upward in sequence above the steel mesh, the heat preservation material abuts against the bottom of the truss plate, blocks or reduces the problem of too fast heat dissipation of heat generated by the hydration heat of concrete by the bottom of the truss plate, and solves the heat preservation and maintenance problem of the truss plate concrete in winter construction, the steel mesh includes a plurality of steel bars evenly spaced and arranged in parallel, the steel bar includes two steel bars sections butted and fixed, a butt joint component is provided between the two steel bars sections, when the two steel bars sections are butt jointed with each other, the first clamping nut is rotated onto the connecting rod, the end portions of the two steel bars sections are respectively plugged into the sockets at the two ends of the connecting rod, and then the first clamping nut is rotated until the socket is away from the end portion of the connecting rod, the first clamping nut presses the plurality of first arc strips inwardly to enclose and tighten, so that the socket is tightly clamped on the end portion of the steel bar section, so that the two steel bars sections are butt jointed and fixed, so that the butt joint between the steel bars sections is simple and easy, and the process of threading on the steel bars sections is reduced, and both ends of the steel bars are provided with When the tensioning component is used to tension and fix the steel bar to the webs of two adjacent steel beams, first, the ends of the two ends of the steel bar are respectively passed through the through holes to penetrate the webs of the two adjacent steel beams, and the ends of the steel bar extend out of the outside of the steel beam webs. Then, the second clamping nut is rotated onto the bottom rod, and the tensioning component is put on the end of the steel bar. The end of the steel bar penetrates the clamping member and the bottom rod, so that the end of the clamping member away from the bottom rod is abutted against the outside web of the steel beam. Then, the second clamping nut is rotated until the end of the clamping member away from the bottom rod is abutted against the retaining edge, and the second clamping nut presses the multiple second arc strips inward to enclose and tighten, so that the clamping member is clamped tightly at the end of the steel bar section, thereby tensioning and fixing the steel bar to the webs of the two adjacent steel beams. The overall installation structure is stable and reliable, and the construction process is convenient and fast. There is no need to use pasting or erecting a frame at the bottom of the truss plate, which saves the trouble of erecting and dismantling scaffolding or cleaning adhesives, and does not require additional cleaning, thereby reducing fire hazards during construction. It has the characteristics of safety and applicability, has good promotion and practical value, and will produce good economic benefits after widespread promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the steel bar joint connection structure of the present invention; Figure 3 It is a schematic diagram of the connection structure between the reinforcement bar and the steel beam of the present invention.
[0013] Figure numerals: 1, truss plate; 2, steel beam; 3, steel mesh; 301, steel bar section; 4, multi-layer board; 5, thermal insulation material; 6, connecting rod; 7, socket; 8, first clamping nut; 9, bottom rod; 10, clamping piece; 11, second clamping nut; 12, rib; 13, electric heating belt. DETAILED DESCRIPTION
[0014] In order to make the technical means, innovative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below.
[0015] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are illustrative and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.
[0016] The invention discloses a steel structure truss plate bottom insulation construction structure, such as Figures 1 to 3As shown, it includes a truss plate 1, a steel beam 2 arranged at the bottom of the truss plate 1, and a thermal insulation structure arranged at the bottom of the truss plate 1 and between the steel beams 2. The steel beam 2 is an I-beam, and multiple steel beams 2 are evenly spaced and arranged in parallel. The top surface of the upper flange of the steel beam 2 abuts against the bottom of the truss plate 1. The thermal insulation structure includes a steel mesh 3 arranged between the steel beams 2, and a multilayer board 4 and a thermal insulation material 5 successively arranged upward above the steel mesh 3. The thermal insulation material 5 is a polyurethane board or an extruded board. The thermal insulation material 5 abuts against the bottom of the truss plate 1. The steel mesh 3 includes multiple steel bars evenly spaced and arranged in parallel. The steel bars are respectively fixedly connected between two adjacent steel beams 2 and at both ends to the steel beams 2. The steel bars include two butt-fixed steel sections 301. A butt-jointing component is provided between the two steel sections 301. The butt-jointing component It is a steel component, and the docking part includes a connecting rod 6, a socket 7 symmetrically arranged at both ends of the connecting rod 6, and a first clamping nut 8 arranged on the socket 7. The socket 7 includes a plurality of first arc-shaped strips of the same specification. The socket 7 is a tubular structure formed by the arc openings of the plurality of first arc-shaped strips. One end of the plurality of first arc-shaped strips is welded and fixed to the end of the connecting rod 6. The hole-shaped space enclosed by the plurality of first arc-shaped strips is a hole-shaped limiting space for fixing one end of the steel bar section 301. The minimum inner diameter of the socket 7 is 1 mm smaller than the outer diameter of the steel bar section 301. Threads are arranged on the outer surface of the first arc-shaped strip and on the outer periphery of the connecting rod 6. The first clamping nut 8 is threadedly sleeved with the socket 7 and the connecting rod 6. The ends of the two steel bar sections 301 are respectively sleeved at both ends of the connecting rod 6 The first clamping nut 8 is fixedly connected with the docking component in the hole-shaped space of the component 7. When the two steel bar sections 301 are docked with each other, the first clamping nut 8 is rotated onto the connecting rod 6, and the ends of the two steel bar sections 301 are respectively plugged into the socket components 7 at both ends of the connecting rod 6. Then the first clamping nut 8 is rotated until the socket component 7 is away from the end of the connecting rod 6. The first clamping nut 8 presses the multiple first arc-shaped strips inward to enclose and tighten, so that the socket component 7 is tightly clamped on the end of the steel bar section 301, so that the two steel bar sections 301 are docked and fixed. A through hole is opened on the web of the steel beam 2, and the two ends of the steel bar pass through the through holes respectively. The ends of the steel bar are provided with tension components. The tension components are steel components. The tension components are arranged on the back sides of the webs of the two adjacent steel beams 2. The pulling component includes a bottom rod 9, a clamping member 10 provided at one end of the bottom rod 9, and a second clamping nut 11 provided on the clamping member 10. The bottom rod 9 is a hollow rod, and the inner diameter of the bottom rod 9 is 1 mm larger than the outer diameter of the steel bar section 301. The clamping member 10 includes a plurality of second arc-shaped strips of the same specification. The clamping member 10 is a tubular structure formed by the arc openings of a plurality of second arc-shaped strips. One end of the plurality of second arc-shaped strips is welded and fixed to one end of the bottom rod 9. The hole-shaped space enclosed by the plurality of second arc-shaped strips is a hole-shaped limiting space for fixing one end of the steel bar. The minimum inner diameter of the clamping member 10 is 1 mm smaller than the outer diameter of the steel bar section 301. Threads are provided on the outer side surface of the second arc-shaped strip and on the outer periphery of the bottom rod 9. The second clamping nut 11 is threadedly sleeved with the clamping member 10 and the bottom rod 9.The end of the steel bar is fixedly connected to the tension component in the hole-shaped space of the clamp 10, and a retaining edge 12 is provided on the outer periphery of the end of the second arc-shaped strip away from the bottom rod 9, so as to prevent the second clamp nut 11 from detaching from the clamp 10, so as to better perform tension fixation. When the steel bar is tension-fixed to the webs of two adjacent steel beams 2, the ends of the steel bar are firstly passed through the webs of the two adjacent steel beams 2 through the through holes, and the ends of the steel bar extend outward from the webs of the steel beams 2. Then, the second clamp nut 11 is rotated onto the bottom rod 9, and the tension component is put on the end of the steel bar. The end of the steel bar passes through the clamp 10 and the bottom rod 9, so that the end of the clamp 10 away from the bottom rod 9 is against the outer web of the steel beam 2, and then the second clamp nut 11 is rotated until the end of the clamp 10 away from the bottom rod 9 is against the retaining edge 12, and the second clamp nut 11 presses the multiple second arc strips inward to enclose and tighten, so that the clamp 10 is clamped at the end of the steel bar section 301, so that the steel bar is pulled and fixed with the webs of the two adjacent steel beams 2. The truss plate 1 is provided with a truss bar and an electric heating belt 13, and concrete is poured on the truss bar and the electric heating belt 13, and the concrete is covered with a plastic film, and a rock wool blanket is laid on the upper part of the plastic film. ,
[0017] The present invention provides a heat preservation structure at the bottom of the truss plate, wherein the heat preservation structure includes a steel mesh arranged between steel beams, and a multilayer plate and heat preservation material arranged upward in sequence above the steel mesh, wherein the heat preservation material abuts against the bottom of the truss plate, thereby blocking or reducing the problem of too fast heat dissipation of heat generated by the hydration heat of concrete at the bottom of the truss plate, thereby solving the heat preservation and maintenance problem of the truss plate concrete during winter construction. The steel mesh includes a plurality of steel bars evenly spaced and arranged in parallel, the steel bars include two steel bars sections butted and fixed, and a butt joint component is provided between the two steel bars sections. When the two steel bars sections are butt jointed with each other, the first clamping nut is rotated onto the connecting rod, and the end portions of the two steel bars sections are respectively plugged into the sockets at both ends of the connecting rod, and then the first clamping nut is rotated until the socket is away from the end portion of the connecting rod, and the first clamping nut presses the plurality of first arc strips inwardly to enclose and tighten, so that the socket is tightly clamped at the end portion of the steel bar section, thereby the two steel bars sections are butt jointed and fixed, making the butt joint between the steel bars sections simple and easy, reducing the The reinforcing bar section is threaded and other processes are performed, and the ends of the two ends of the reinforcing bar are provided with tensioning parts. When the reinforcing bar is tensioned and fixed to the webs of the two adjacent steel beams, the ends of the reinforcing bar are firstly penetrated through the two adjacent steel beam webs through the through holes, and the ends of the reinforcing bar extend outward from the webs of the steel beam. Then the second clamping nut is rotated onto the bottom rod, and the tensioning part is sleeved on the end of the reinforcing bar. The end of the reinforcing bar penetrates the clamping part and the bottom rod, so that the end of the clamping part away from the bottom rod is abutted against the web of the outer side of the steel beam. Then the second clamping nut is rotated until the end of the clamping part away from the bottom rod is abutted against the retaining edge, and the second clamping nut presses the multiple second arc strips inward to enclose and tighten, so that the clamping part is clamped tightly at the end of the reinforcing bar section, so that the reinforcing bar is tensioned and fixed to the webs of the two adjacent steel beams. The overall installation structure is stable and reliable, and the construction process is convenient and quick. There is no need to use the method of pasting or erecting a frame at the bottom of the truss plate, which saves the trouble of erecting and dismantling scaffolding or cleaning adhesives, and does not require additional cleaning, thereby reducing fire hazards during construction.
[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A steel structure truss plate bottom insulation construction structure, comprising a truss plate (1), a plurality of steel beams (2) arranged at the bottom of the truss plate (1), and an insulation structure arranged at the bottom of the truss plate (1), wherein the top surface of the steel beam (2) abuts against the bottom of the truss plate (1), and is characterized in that: The thermal insulation structure comprises a steel mesh (3) arranged between steel beams (2), and a multilayer board (4) and a thermal insulation material (5) arranged upwardly on the steel mesh (3) in sequence, the thermal insulation material (5) abutting against the bottom of the truss plate (1), the steel mesh (3) comprises a plurality of steel bars evenly spaced and arranged in parallel, the steel bars are respectively fixedly connected between two adjacent steel beams (2) and at both ends to the steel beams (2), the steel bars comprise two butt-jointed steel bar sections (301), a butt-jointed component is provided between the two steel bar sections (301), the butt-jointed component comprises a connecting rod (6), A sleeve (7) symmetrically arranged at both ends of the connecting rod (6), and a first clamping nut (8) arranged on the sleeve (7), the sleeve (7) comprising a plurality of first arc-shaped strips of the same specification, the arc openings of the plurality of first arc-shaped strips relatively enclosing a tubular structure, one end of the plurality of first arc-shaped strips being connected and fixed to the end of the connecting rod (6), the plurality of first arc-shaped strips enclosing a hole-shaped limiting space for fixing one end of the steel bar section (301), the outer surface of the first arc-shaped strip and the outer periphery of the connecting rod (6) are both provided with threads, the first clamping nut (8) and the sleeve (7) are connected to each other. Threaded sleeve connection, one end of the two steel bar sections (301) are respectively fixedly connected to the docking parts in the hole-shaped limiting space of the sleeve parts (7) at both ends of the connecting rod (6), the web of the steel beam (2) is provided with a through hole, and the two ends of the steel bar pass through the webs of the two adjacent steel beams (2) through the through hole, and the two ends of the steel bar are respectively provided with a tensioning part, which is arranged on the opposite sides of the webs of the two adjacent steel beams (2), and the tensioning part includes a bottom rod (9), a clamping part (10) arranged at one end of the bottom rod (9), and a second clamping nut (11) arranged on the clamping part (10). ), the clamp (10) comprises a plurality of second arc-shaped strips of the same specification, the arc openings of the plurality of second arc-shaped strips are relatively closed to form a tubular structure, one end of the second arc-shaped strip is connected and fixed to the end of the bottom rod (9), and the plurality of second arc-shaped strips are closed to form a hole-shaped limiting space for fixing the steel section (301) away from the end of the docking component, the outer surface of the second arc-shaped strip and the outer periphery of the bottom rod (9) are both provided with threads, the second clamp nut (11) is threadedly sleeved with the clamp (10), and the end of the steel bar is fixedly connected to the tension component in the hole-shaped limiting space of the clamp (10).
2. A steel structure truss slab bottom insulation construction structure according to claim 1, characterized in that: The steel beam (2) is an I-beam, and a plurality of steel beams (2) are evenly spaced and arranged in parallel.
3. A steel structure truss slab bottom insulation construction structure according to claim 2, characterized in that: The thermal insulation material (5) is a polyurethane board or an extruded board.
4. The steel structure truss slab bottom insulation construction structure according to claim 1, characterized in that: The butting components and the tension components are both steel components.
5. The steel structure truss slab bottom insulation construction structure according to claim 1, characterized in that: The bottom rod (9) is a hollow rod-shaped structure.
6. The steel structure truss slab bottom insulation construction structure according to claim 1, characterized in that: A retaining edge (12) is provided on the outer periphery of one end of the second arc-shaped strip plate away from the bottom rod (9).
7. A steel structure truss slab bottom insulation construction structure according to any one of claims 4 to 6, characterized in that: The truss plate (1) is provided with an electric heating belt (13).