CN203878753U - High-strength bolt shear key structure - Google Patents

High-strength bolt shear key structure Download PDF

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Publication number
CN203878753U
CN203878753U CN201420213170.3U CN201420213170U CN203878753U CN 203878753 U CN203878753 U CN 203878753U CN 201420213170 U CN201420213170 U CN 201420213170U CN 203878753 U CN203878753 U CN 203878753U
Authority
CN
China
Prior art keywords
plate
strength bolt
steel
steel pipe
shear key
Prior art date
Application number
CN201420213170.3U
Other languages
Chinese (zh)
Inventor
李秉南
戴航
Original Assignee
东南大学
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 东南大学 filed Critical 东南大学
Priority to CN201420213170.3U priority Critical patent/CN203878753U/en
Application granted granted Critical
Publication of CN203878753U publication Critical patent/CN203878753U/en

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Abstract

The utility model discloses a high-strength bolt shear key structure. The high-strength bolt shear key structure comprises a steel beam, a prefabricated concrete plate, a high-strength bolt and a connecting piece, wherein the steel beam is composed of a steel beam web and a steel beam flange plate, and the connecting piece is composed of an upper cushion plate, a lower cushion plate and a supporting steel pipe. The upper end and the lower end of the supporting steel pipe abut against and are fixedly connected with the upper cushion plate and the lower cushion plate respectively. The connecting piece is poured in the prefabricated concrete plate. The high-strength bolt shear key structure is manufactured according to the following steps that the steel beam web and the steel beam flange plate are manufactured into the steel beam in the form of an I-shaped beam, the prefabricated concrete plate is manufactured, the connecting piece composed of the upper cushion plate, the lower cushion plate and the supporting steel pipe is poured in the designed position of the prefabricated concrete plate, and the supporting steel pipe is sandwiched between the upper cushion plate and the lower cushion plate; the steel beam is paved with the prefabricated concrete plate, and the supporting steel pipe of the connecting piece serves as a formwork to carry out drilling; the prefabricated concrete plate and the flange plate of the steel beam are bolted in place to the bonding state, and the prefabricated concrete plate and the flange plate are connected through clamping force of the high-strength bolt.

Description

A kind of high-strength bolt shear key structure
Technical field
The utility model relates to a kind of high-strength bolt shear key structure that is used for connecting girder steel and precast concrete plank, belongs to civil works building technology field.
Background technology
Prefabricated assembled steel-concrete combined structure is combined into overall co-operation by shear connector by girder steel and precast concrete plank, can give full play to the advantage separately of Steel concrete bi-material, there is the advantages such as environmental friendliness, easy construction, good economy performance, apply increasingly extensive.
Shear connector is the critical component in steel-concrete combined structure, and form has a variety of.High-strength bolt shear key is formed the frange plate of precast concrete plank and girder steel to be connected by the chucking power of high-strength bolt, has the advantages such as quality of connection is easy to ensure, quick construction is convenient, concrete slab replacing is easy, has broad application prospects.In at present common high-strength bolt shear key, concrete directly bears the pre-applied force of high-strength bolt, and in part, heavily stressed lower concrete creeping causes that the problem that high-strength bolt pretension is lax is more outstanding, causes the reduction of combining structure switching performance.
Utility model content
The purpose of this utility model is to provide a kind of simple in structure, easy construction, can effectively reduces the high-strength bolt shear key structure that pretension is lax.
The technical solution of the utility model is:
A kind of high-strength bolt shear key structure, comprises the connector of girder steel, precast concrete plank, high-strength bolt and upper padding plate, lower bolster and the supporting steel pipe composition of steel beam web plate and girder steel frange plate composition; The two ends up and down of described supporting steel pipe offset with upper padding plate and lower bolster respectively and are fixing, described girder steel frange plate, upper padding plate and lower bolster are equipped with the circular hole with high-strength bolt adaptation on the axis of supporting steel pipe, the internal diameter of described supporting steel pipe is not less than the diameter of above-mentioned circular hole, and described connector is built in precast concrete plank.
The beneficial effects of the utility model are: the utility model is simple in structure, easy construction, supporting steel pipe is not only the duct of high-strength bolt in precast concrete plank, and be the support frame of high-strength bolt, bear the most pre-applied force of high-strength bolt, thereby greatly reduce the pressure that concrete bears, concrete creeping significantly reduced, can effectively reduce the lax of high-strength bolt pretension, strengthen shearing concatenation ability and the intensity of combining structure.
Brief description of the drawings
Fig. 1 is the main pseudosection of the utility model embodiment.
Fig. 2 is the side cutaway view of Fig. 1.
Fig. 3 is the top plan view of Fig. 1.
In figure, be labeled as 1. steel beam web plate, 2. girder steel frange plate, 3. precast concrete plank, 4. high-strength bolt, 5. upper padding plate, 6. lower bolster, 7. supporting steel pipe.
Detailed description of the invention
Embodiment 1
A kind of high-strength bolt shear key structure, comprise the girder steel that steel beam web plate 1 and girder steel frange plate 2 form, precast concrete plank 3, high-strength bolt 4 and by upper padding plate 5, the connector that lower bolster 6 and supporting steel pipe 7 form, the two ends up and down of described supporting steel pipe 7 offset with upper padding plate 5 and lower bolster 6 respectively and are fixing, described girder steel frange plate 2, upper padding plate 5 and lower bolster 6 are equipped with the circular hole with high-strength bolt 4 adaptations on the axis of supporting steel pipe 7, the internal diameter of described supporting steel pipe 7 is not less than the diameter of above-mentioned circular hole, described connector is built in precast concrete plank 3, supporting steel pipe 7 is as support frame, and bear the pre-applied force of most of high-strength bolt, thereby realize the reduction of concrete pressure, significantly reduce concrete creeping, reduce the lax of high-strength bolt pretension, strengthen shearing concatenation ability and the intensity of combining structure.
As shown in Fig. 1 ~ 3, a kind of high-strength bolt shear key structure of the present utility model.Steel beam web plate 1 and girder steel frange plate 2 form girder steel; The two ends up and down of supporting steel pipe 7 are welded and fixed composition connector with upper padding plate 5 and lower bolster 6 respectively, and upper padding plate 5 and lower bolster 6 are equipped with the circular hole with high-strength bolt 4 adaptations on the axis of supporting steel pipe 7, and connector is built in precast concrete plank 3; Concrete slab 3 is symmetrically placed on girder steel frange plate 2 according to supporting steel pipe 7, and girder steel frange plate 2 is equipped with the circular hole with high-strength bolt 4 adaptations on the axis of supporting steel pipe 7; The screw rod of high-strength bolt 4 is successively through upper padding plate 5, supporting steel pipe 7, lower bolster 6 and the rear fastening nut of girder steel frange plate 2, completes being connected of girder steel and precast concrete plank.
Embodiment 2
A kind of construction construction method of high-strength bolt shear key structure, first steel beam web plate 1 and girder steel frange plate 2 are manufactured to the girder steel of I-beam type, carry out the making of precast concrete plank 3 simultaneously, and the connector being made up of upper padding plate 5, lower bolster 6 and supporting steel pipe 7 is cast on the design attitude of precast concrete plank, and described supporting steel pipe 7 is clipped in therebetween by upper padding plate 5 and lower bolster 6; Then complete the field erection of girder steel, then on girder steel, carry out the laying of precast concrete plank 3, and utilize the supporting steel pipe 7 of connector to hole as template; Finally that precast concrete plank 3 is in place to fit-state with frange plate 2 bolts of girder steel, make both form connection by the chucking power of high-strength bolt 4.

Claims (1)

1. a high-strength bolt shear key structure, it is characterized in that: the girder steel that comprises steel beam web plate (1) and girder steel frange plate (2) composition, precast concrete plank (3), high-strength bolt (4) and by upper padding plate (5), the connector of lower bolster (6) and supporting steel pipe (7) composition, the two ends up and down of described supporting steel pipe (7) offset with upper padding plate (5) and lower bolster (6) respectively and are fixing, described girder steel frange plate (2), upper padding plate (5) and lower bolster (6) are equipped with the circular hole adaptive with high-strength bolt (4) on the axis of supporting steel pipe (7), the internal diameter of described supporting steel pipe (7) is not less than the diameter of above-mentioned circular hole, described connector is built in precast concrete plank (3).
CN201420213170.3U 2014-04-29 2014-04-29 High-strength bolt shear key structure CN203878753U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420213170.3U CN203878753U (en) 2014-04-29 2014-04-29 High-strength bolt shear key structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420213170.3U CN203878753U (en) 2014-04-29 2014-04-29 High-strength bolt shear key structure

Publications (1)

Publication Number Publication Date
CN203878753U true CN203878753U (en) 2014-10-15

Family

ID=51679270

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420213170.3U CN203878753U (en) 2014-04-29 2014-04-29 High-strength bolt shear key structure

Country Status (1)

Country Link
CN (1) CN203878753U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103924674A (en) * 2014-04-29 2014-07-16 东南大学 High-strength bolt shear key structure and constructing method thereof
CN106284657A (en) * 2016-10-13 2017-01-04 哈尔滨工业大学 Assembled girder is widened district at secondary beam and is run through bolt of long stem connection node and method of attachment
CN108625493A (en) * 2018-06-30 2018-10-09 湖北神州建材有限责任公司 Steam-pressing aero-concrete Assembled Building panel or roofing board support connecting structure
CN108660948A (en) * 2018-05-15 2018-10-16 浙江大学 Detachable Prefabricated combined beam screw and combination beam
CN109736198A (en) * 2018-12-07 2019-05-10 东南大学 A kind of combined type interface is tightly connected high-performance steel-UHPC thin plate combined structure system in advance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103924674A (en) * 2014-04-29 2014-07-16 东南大学 High-strength bolt shear key structure and constructing method thereof
CN106284657A (en) * 2016-10-13 2017-01-04 哈尔滨工业大学 Assembled girder is widened district at secondary beam and is run through bolt of long stem connection node and method of attachment
CN108660948A (en) * 2018-05-15 2018-10-16 浙江大学 Detachable Prefabricated combined beam screw and combination beam
CN108625493A (en) * 2018-06-30 2018-10-09 湖北神州建材有限责任公司 Steam-pressing aero-concrete Assembled Building panel or roofing board support connecting structure
CN109736198A (en) * 2018-12-07 2019-05-10 东南大学 A kind of combined type interface is tightly connected high-performance steel-UHPC thin plate combined structure system in advance

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141015

Termination date: 20180429

CF01 Termination of patent right due to non-payment of annual fee