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A kind of multifunctional pull bolt and its application

It is a multi-functional technology for pulling bolts, which is applied to the connection parts of formwork/formwork/work frame, structural elements, building components, etc. It can solve the problems of difficult construction accuracy, many processes, and inconvenient reinforcement operations. Achieve the effects of improving the overall performance of the structure, improving stability and bearing strength, and reducing the time for handover of work types

Active Publication Date: 2015-07-29
河北省第四建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are disadvantages such as formwork installation, inconvenient reinforcement operation, many processes, and difficulty in ensuring construction accuracy. Obviously, the tension bolts of the existing structure cannot well meet the needs of unilateral support formwork and inclined formwork support to plate members. , Construction requirements for vertical formwork support

Method used

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  • A kind of multifunctional pull bolt and its application
  • A kind of multifunctional pull bolt and its application
  • A kind of multifunctional pull bolt and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: as figure 1 , figure 2 As shown, the two ends of the multi-functional pull bolt 1 used for masonry and concrete composite structure single-side formwork are provided with threads, and the two ends of the bolt rod 1 are respectively equipped with a steel plate, that is, the inner support plate 2 and the outer support plate 5, Both the inner support plate 2 and the outer support plate 5 are square steel plates (or rectangular steel plates), the side length of the inner support plate is 100-200 mm, and the thickness is not less than 6 mm. The side length of 5 is 50-100 mm, and the thickness is not less than 6 mm. The side length of the outer support plate 5 in this embodiment is 80 mm; A pair of positioning cards for binding steel bars are welded on the bolt rod 1 between the outer support plates 5, that is, the inner reinforcing bar positioning card 3 adjacent to the inner supporting plate 2 and the outer reinforcing bar positioning card 4 adjacent to the ...

Embodiment 2

[0067] Embodiment 2: as image 3 As shown, the difference between this embodiment and Embodiment 1 is that a pair of adjusting nuts 6 are assembled on the bolt rod 1 inside the outer support plate 5, and the two adjusting nuts 6 are tightened with each other, and the adjustment nut 6 and the support plate 5 are welded. The outer support plate 5 on one side of the adjusting nut 6 and the bolt rod 1 can be adjusted to form an adjustable outer support plate 51. When the surface of the cast-in-place concrete needs to meet the standard of fair-faced concrete, the adjustable outer support plate of this embodiment can be used. Support plate 51.

[0068] The function of the adjustable outer support plate 51 is the same as that of the non-adjustable outer support plate 5, and the adjustable outer support plate 51 is used for setting up a single-side formwork with high precision requirements. At this time, the length of the screw thread at the end of the pull bolt pull rod 1 should be ...

Embodiment 3

[0073] Embodiment 3: as Figure 5 As shown, this embodiment is used for the process of supporting the formwork on both sides of the inclined plate member, and its operation process is as follows:

[0074] Erection of support frame → Laying of reinforced rib beam and lower formwork 12 → Elastic measurement of steel bar position line and tension bolt location line → Binding of lower reinforcement bar 8 → Laying of tension bolt 1 → Reinforcement and calibration of tension bolt 1 and lower formwork system → Lower reinforcement 8 Positioning → Binding the upper reinforcement 8 and positioning → (use the upper support plate 2 to install and position the embedded parts) → Check for correctness and acceptance → Install the upper formwork 13 → Install the upper formwork 13 to strengthen the rib beam, fasten the pull bolt 1 → Review The lower formwork 12 and its reinforcement → concrete pouring process → after removing the formwork and cutting the exposed bolt ends, the cut ends are tre...

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Abstract

The invention discloses a multifunctional split bolt and application thereof. Steel plates are penetratingly mounted at two ends of a bolt bar. The bolt bar is fixedly connected one steel plate by means of welding. A pair of positioning clamps for fixing rebar positions is welded on the bolt bar between the two steel plates. Fastening nuts are fitted at two ends of the bolt bar. When the split bolt is used in a composite structure with building prior to pouring, construction speed is increased, construction efficiency is improved, bonding degree and tightness of interfaces of different materials are enhanced, overall performance of a structure is improved, usability of the structure is more reliable, maintenance is reduced, service life of a project is prolonged, accuracy and reliability of rebar protective layer control are higher, soakage resistance and erosion resistance of concrete is guaranteed to be more reliable, formwork mounting and strengthening are more convenient and faster, influence of building verticality and evenness can be eliminated, construction accuracy is higher, common signal side formwork lateral supports can be reduced, construction difficulty can be lowered, cost is saved, and the split bolt is suitable for double-side formwork construction and embedded part positioning mounting of walls and board components.

Description

technical field [0001] The invention relates to a pull bolt and its application in the construction of cast-in-place concrete structures, in particular to a pull bolt structure used for the installation and reinforcement of concrete formwork on one side or both sides, and it can be used to tilt instead of a steel bar horse stool and a steel bar protective layer pad The application of the slab double-layer formwork relates to the application for positioning and installation of concrete member facades, inclined surfaces, and upper surface embedded parts. Background technique [0002] The pull bolt is the basic component of the formwork system in the construction of cast-in-place concrete structures. The function of the pull bolt is to maintain the distance between the formwork on both sides of the concrete member, withstand the lateral pressure of the newly poured concrete and pouring construction, and ensure the overall strength and stiffness of the formwork system. The tradi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G17/065E04C5/18
Inventor 陈增顺董富强高任清陈建兵张秀华
Owner 河北省第四建筑工程有限公司
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