CN103993736A - Fastening bolt for shear wall formwork - Google Patents

Fastening bolt for shear wall formwork Download PDF

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Publication number
CN103993736A
CN103993736A CN201410214427.1A CN201410214427A CN103993736A CN 103993736 A CN103993736 A CN 103993736A CN 201410214427 A CN201410214427 A CN 201410214427A CN 103993736 A CN103993736 A CN 103993736A
Authority
CN
China
Prior art keywords
fastening bolt
nut
rod
shear
formwork
Prior art date
Application number
CN201410214427.1A
Other languages
Chinese (zh)
Inventor
丁兆星
伍中平
熊剑
吴保强
Original Assignee
中铁建设集团有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中铁建设集团有限公司 filed Critical 中铁建设集团有限公司
Priority to CN201410214427.1A priority Critical patent/CN103993736A/en
Publication of CN103993736A publication Critical patent/CN103993736A/en

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Abstract

The invention relates to a fastening bolt for a shear wall formwork. The fastening bolt comprises a pre-buried fastening bolt, a nut, a reinforcing connecting rod and a clamp shaped like a Chinese character 'shan'. The pre-buried fastening bolt comprises a head part and a rod body. Outer threads are arranged at the lower end of the rod body. Inner threads are arranged on the nut. The inner threads are matched with the outer threads at the lower end of the rod body. A nut sleeve pipe is arranged on the outer portion of the nut. The two ends of the reinforcing connecting rod are provided with outer threads. The inner threads of the nut and the outer threads of the reinforcing connecting rod are matched. A thread hole is formed in the middle of the clamp shaped like the Chinese character 'shan'. The size of the thread hole is matched with the outer threads of the reinforcing connecting rod. The fastening bolt has the advantages that the pre-buried fastening bolt is used on an outer wall construction seam part, cost is saved, the common quality problems that outer wall connection portions are not smooth, and slurry leakage happens are effectively avoided, the phenomenon that a support is not arranged on the outer wall formwork during reinforcing through a bottom thread hole is avoided, formwork reinforcing time is saved, and operation is safe and reliable.

Description

A kind of shear wall formwork fastening bolt
Technical field
The present invention relates to building implements field, especially a kind of shear wall formwork fastening bolt.
Background technology
Highrise building is along with urbanization process gos deep into and development, and as the primary structure form of highrise building, shear wall relies on its good antidetonation and wind resistance, and Design of Shear-wall Structure is by Designing Structures of High Rising Buildings extensive use.From design level, the structural configuration of accomplishing highrise building is flexible, cost is low and good economy performance, pursuing the optimum combination of pattern innovation, functional requirement and structural safety, is the developing direction of future architecture structure design, is bringing into play very important effect in design of building structures.
But in practice of construction process, add the factors such as template number of turnover increase due to workman's operant level, technical error and cause concrete formation of low quality, be especially prone to most the quality problems such as running pulp, rotten, spillage, faulting of slab ends at shear wall external wall construction seam position.Above problem is all deposited impact largely for integrality performance of the structure and later stage exterior wall finishing, has increased later stage concrete repair cost; Especially this engineering exterior wall is mainly coating metope, and shear wall exterior wall concrete Forming Quality is had to higher requirement; Therefore the Forming Quality that how to ensure external wall construction seam position, becomes overriding concern problem.
Summary of the invention
The object of this invention is to provide a kind of shear wall formwork fastening bolt, to overcome currently available technology above shortcomings.
The object of the invention is to be achieved through the following technical solutions: a kind of shear wall formwork fastening bolt, comprise pre-buried fastening bolt, nut, bar and mountain type card reinforce the connection, described pre-buried fastening bolt comprises head and the body of rod, and the lower end of the described body of rod is provided with external screw thread; Described nut is provided with internal thread, and described internal thread and external screw thread match, and described nut outside is provided with nut casing; The described bar two ends that reinforce the connection are equipped with external screw thread, and the internal thread of described nut matches with the external screw thread of the bar that reinforces the connection; The middle part of described mountain type card is provided with screw, and the size of described screw matches with the bar external screw thread that reinforces the connection.
Further, the width of the described pre-buried fastening bolt body of rod is less than the width of head, and the size of the described body of rod and nut inner surface match.
Further, the length of described nut casing is all less than the external screw thread of the body of rod and the externally threaded length of bar that reinforces the connection.
Further, described nut casing is hollow trapezium structure, and the size of described nut casing inner surface and nut external surface match, and the size of described nut casing upper end is greater than the size of nut casing lower end.
Further, described in the reinforce the connection length of bar be greater than the length of pre-buried fastening bolt, described in reinforce the connection size and the described nut inner surface of bar match.
Beneficial effect of the present invention is: use pre-buried fastening bolt at exterior wall constuction joint position, cost-saving, effectively avoid exterior wall to connect batch out-of-flatness and run the common quality defects such as spillage, solve outer wall template while using bottom screw the to reinforce phenomenon without bearing, save the time of reinforcing template, operate more safe and reliablely, can improve largely the presentation quality of shear wall.
Brief description of the drawings
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is the structural representation of the pre-buried fastening bolt of a kind of shear wall formwork fastening bolt described in the embodiment of the present invention;
Fig. 2-1st, the nut of fastening bolt and the elevation of nut casing for a kind of shear wall formwork described in the embodiment of the present invention;
Fig. 2-2nd, the nut of fastening bolt and the top view of nut casing for a kind of shear wall formwork described in the embodiment of the present invention;
Fig. 2-3rd, the nut of fastening bolt and the upward view of nut casing for a kind of shear wall formwork described in the embodiment of the present invention;
Fig. 3 is the structural representation of the bar that reinforces the connection of a kind of shear wall formwork fastening bolt described in the embodiment of the present invention;
Fig. 4 is the use structural representation of a kind of shear wall formwork fastening bolt described in the embodiment of the present invention;
Fig. 5 is the connection diagram of the pre-buried fastening bolt of a kind of shear wall formwork fastening bolt described in the embodiment of the present invention and nut, nut casing;
Fig. 6 is the pre-buried fastening bolt use procedure figure mono-of a kind of shear wall formwork fastening bolt described in the embodiment of the present invention;
Fig. 7 is the pre-buried fastening bolt use procedure figure bis-of a kind of shear wall formwork fastening bolt described in the embodiment of the present invention.
In figure:
1, pre-buried fastening bolt; 1.1, head; 1.2, the body of rod; 1.3, external screw thread; 2, nut; 3, nut casing; 4, the bar that reinforces the connection; 4.1, external screw thread; 5, mountain type card; 5.1, screw.
Detailed description of the invention
As Figure 1-4, a kind of shear wall formwork fastening bolt described in the embodiment of the present invention, comprise pre-buried fastening bolt 1, nut 2, reinforce the connection bar 4 and mountain type card 5, described pre-buried fastening bolt 1 comprises head 1.1 and the body of rod 1.2, the lower end of the described body of rod 1.2 is provided with external screw thread 1.3; Described nut 2 is provided with internal thread, and described internal thread and external screw thread 1.3 match, and described nut 2 outsides are provided with nut casing 3; Described bar 4 two ends that reinforce the connection are equipped with external screw thread 4.1, and the internal thread of described nut 2 matches with bar 4 external screw threads 4.1 that reinforce the connection; The middle part of described mountain type card 5 is provided with screw 5.1, and the size of described screw 5.1 matches with bar 4 external screw threads 4.1 that reinforce the connection.
The width of the body of rod 1.2 of described pre-buried fastening bolt 1 is less than the width of head 1.1, and the size of the described body of rod 1.2 and nut 2 inner surfaces match.
The length of described nut casing 3 is all less than the length of external screw thread 1.3 and bar 4 external screw threads 4.1 that reinforce the connection of the body of rod 1.2.
Described nut casing 3 is hollow trapezium structure, can ensure pre-buried fastening bolt 1 to be fixed on the reinforcing bar of beam or shear wall; The size of described nut casing 3 inner surfaces and nut 2 external surfaces match, and the size of described nut casing 3 upper ends is greater than the size of nut casing 3 lower ends.
The described length that reinforces the connection bar 4 is greater than the length of pre-buried fastening bolt 1, described in reinforce the connection size and described nut 2 inner surfaces of bar 4 match.
When concrete use:
One, bury underground and confine bolt part at current floor, technological process is summarized as follows:
1, reinforcing bar binding completes; 2, shear wall formwork has been reinforced; 3, bury fastening bolt underground; 4, concreting; 5, remove shear wall formwork; 6, bolt cleaning.
Two, carry out template installation at lower first floor layer, flow process is summarized as follows:
1, snap the line, location; 2, front inspection is installed; 3, mounting door-window mouth template; 4, a side wall template installation in position; 5, cement support is installed; 6, clean foreign material within the walls; 7, paste sponge strip; 8, installation in position another side side wall template; 9, insert and wear plastic pipe screw rod through walls; 10, adjust template and keel position; 11, fastening through-wall bolt; 12, reinforce pre-buried confinement bolt.
The main points of the operation of installation fastening bolt 1 are as follows:
(1) shear wall and Bars In Poured Concrete Slab formwork erection are complete, and all reinforcing bar bindings are complete;
(2) body of rod of pre-buried fastening bolt 1 1.2 one end are being screwed in to the nut casing 3 with nut 2, as shown in Figure 5;
(3) needs of reinforcing according to shear wall formwork, pre-buried fastening bolt shown in 5 figure 1 use tied silk is fixed on pre-buried fastening bolt 1 on the reinforcing bar of beam or shear wall, and the head 1.1 that ensures pre-buried fastening bolt 1 is near outside shear wall or beam forms, as shown in Figure 6;
(4) treat that beam, plate reinforcing bar binding, formwork reinforcement and relevant water power set aside pre-embedded constructed, and after acceptance(check), carry out concreting work;
(5) after outer wall template is removed, in time the hole of pre-buried fastening bolt 1 is cleared up, to prevent that laitance is by hole plug, as shown in Figure 7;
(6) screw-in two ends are provided with the bar 4 that reinforces the connection of external screw thread 4.1, carry out the reinforcement that installs of next story shear wall form, as shown in Figure 4.
Adopt the construction of this kind of technique, the appearance of effectively having avoided exterior wall to connect batch out-of-flatness and run the common quality defects such as spillage, and solve outer wall template while using bottom screw the to reinforce phenomenon without bearing, solve the expense that carpenter installs outer wall template temporary support, simultaneously, because exterior wall is reinforced with the lumps of wood or steel pipe no longer to downward-extension, save the use of circulation material, because the burial place of pre-buried fastening bolt is the below of cast-in-place, effectively save the reinforcing template time, operated also safer simultaneously.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection scope of the present invention.

Claims (5)

1. a shear wall formwork fastening bolt, comprise pre-buried fastening bolt (1), nut (2), the bar that reinforces the connection (4) and mountain type card (5), it is characterized in that: described pre-buried fastening bolt (1) comprises head (1.1) and the body of rod (1.2), and the lower end of the described body of rod (1.2) is provided with external screw thread (1.3); Described nut (2) is provided with internal thread, and described internal thread and external screw thread (1.3) match, and described nut (2) outside is provided with nut casing (3); The described bar that reinforces the connection (4) two ends are equipped with external screw thread (4.1), and the internal thread of described nut (2) matches with the external screw thread (4.1) of bar (4) that reinforce the connection; The middle part of described mountain type card (5) is provided with screw (5.1), and the size of described screw (5.1) matches with bar (4) external screw thread (4.1) that reinforces the connection.
2. a kind of shear wall formwork fastening bolt according to claim 1, it is characterized in that: the width of described pre-buried fastening bolt (1) body of rod (1.2) is less than the width of head (1.1), the size of the described body of rod (1.2) and nut (2) inner surface match.
3. a kind of shear wall formwork fastening bolt according to claim 2, is characterized in that: the length of described nut casing (3) is all less than the length of the external screw thread (1.3) of the body of rod (1.2) and the bar that reinforces the connection (4) external screw thread (4.1).
4. a kind of shear wall formwork fastening bolt according to claim 3, it is characterized in that: described nut casing (3) is hollow trapezium structure, the size of described nut casing (3) inner surface and nut (2) external surface match, and the size of described nut casing (3) upper end is greater than the size of nut casing (3) lower end.
5. a kind of shear wall formwork fastening bolt according to claim 4, it is characterized in that: described in the reinforce the connection length of bar (4) be greater than the length of pre-buried fastening bolt (1), described in reinforce the connection size and described nut (2) inner surface of bar (4) match.
CN201410214427.1A 2014-05-21 2014-05-21 Fastening bolt for shear wall formwork CN103993736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410214427.1A CN103993736A (en) 2014-05-21 2014-05-21 Fastening bolt for shear wall formwork

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410214427.1A CN103993736A (en) 2014-05-21 2014-05-21 Fastening bolt for shear wall formwork

Publications (1)

Publication Number Publication Date
CN103993736A true CN103993736A (en) 2014-08-20

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104775617A (en) * 2015-04-13 2015-07-15 中冶建工集团有限公司 Method for reinforcing cast-in-place concrete formwork
CN105507586A (en) * 2016-01-21 2016-04-20 福州星阳建筑劳务有限公司 Reinforcing component for outer wall formwork of building
CN106245827A (en) * 2016-08-30 2016-12-21 中建八局第四建设有限公司 A kind of shear wall construction method
CN107130798A (en) * 2017-06-02 2017-09-05 北京首钢建设集团有限公司 A kind of plank sheathing explosion-proof bolt installation method
CN107724676A (en) * 2017-10-12 2018-02-23 江苏双楼建设集团有限公司 A kind of reusable folder bottom fastening bolt

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005105583A (en) * 2003-09-29 2005-04-21 Sekisui House Ltd Molding flask holder
CN202125073U (en) * 2011-06-24 2012-01-25 江苏双楼建设集团有限公司 Turnover bottom clip bolt for combined beam column template
CN203096941U (en) * 2012-12-26 2013-07-31 深圳市建工集团股份有限公司 Detachable locking pin screw
CN203373963U (en) * 2013-06-27 2014-01-01 中建七局第二建筑有限公司 Installation structure of formwork of inner side of elevator shaft shear wall
CN203891470U (en) * 2014-05-21 2014-10-22 中铁建设集团有限公司 Fastening bolt for shear wall formwork

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005105583A (en) * 2003-09-29 2005-04-21 Sekisui House Ltd Molding flask holder
CN202125073U (en) * 2011-06-24 2012-01-25 江苏双楼建设集团有限公司 Turnover bottom clip bolt for combined beam column template
CN203096941U (en) * 2012-12-26 2013-07-31 深圳市建工集团股份有限公司 Detachable locking pin screw
CN203373963U (en) * 2013-06-27 2014-01-01 中建七局第二建筑有限公司 Installation structure of formwork of inner side of elevator shaft shear wall
CN203891470U (en) * 2014-05-21 2014-10-22 中铁建设集团有限公司 Fastening bolt for shear wall formwork

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104775617A (en) * 2015-04-13 2015-07-15 中冶建工集团有限公司 Method for reinforcing cast-in-place concrete formwork
CN105507586A (en) * 2016-01-21 2016-04-20 福州星阳建筑劳务有限公司 Reinforcing component for outer wall formwork of building
CN106245827A (en) * 2016-08-30 2016-12-21 中建八局第四建设有限公司 A kind of shear wall construction method
CN107130798A (en) * 2017-06-02 2017-09-05 北京首钢建设集团有限公司 A kind of plank sheathing explosion-proof bolt installation method
CN107724676A (en) * 2017-10-12 2018-02-23 江苏双楼建设集团有限公司 A kind of reusable folder bottom fastening bolt

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Application publication date: 20140820

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