CN2821036Y - Frame beam hogging moment reinforced structure - Google Patents

Frame beam hogging moment reinforced structure Download PDF

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Publication number
CN2821036Y
CN2821036Y CN 200520035196 CN200520035196U CN2821036Y CN 2821036 Y CN2821036 Y CN 2821036Y CN 200520035196 CN200520035196 CN 200520035196 CN 200520035196 U CN200520035196 U CN 200520035196U CN 2821036 Y CN2821036 Y CN 2821036Y
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CN
China
Prior art keywords
steel plate
hole
reinforcing bar
vierendeel girder
hogging moment
Prior art date
Application number
CN 200520035196
Other languages
Chinese (zh)
Inventor
郑育新
Original Assignee
郑育新
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 郑育新 filed Critical 郑育新
Priority to CN 200520035196 priority Critical patent/CN2821036Y/en
Application granted granted Critical
Publication of CN2821036Y publication Critical patent/CN2821036Y/en

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Abstract

The utility model relates to a negative bending moment reinforced structure of a frame beam with an integral presently casting whole body, which comprises a reinforced steel plate arranged on the combination part of a beam and a post of a frame, wherein the steel plate is fixed on the top surface of beam ends in a bonding mode. The utility model is characterized in that reinforcing bars are arranged on the steel plate; the reinforcing bars are welded with the steel plate, and the remaining part extends out of the steel plate; a rib planting hole corresponding to the extension part of the reinforcing bars is arranged on the post of the frame; the extension part of the reinforcing bars is planted in the hole which is filled with anchoring substance at intervals; an anchor bolt is arranged between the steel plate and the beam. The force bearing of the reinforced component is definite and reliable, the machining of components and the reinforcement construction are simple and convenient.

Description

Vierendeel girder hogging moment ruggedized construction
Technical field
The utility model relates to the frame beam structure of building, specifically, is a kind of ruggedized construction of integral cast-in-situ Vierendeel girder.
Background technology
Building uses a year of a specified duration or service condition variation, when the load-carrying ability of its Vierendeel girder can not satisfy instructions for use, need reinforce it, improves load-carrying ability.Technological means commonly used at present is a steel-bonded reinforcement, promptly respectively establishes steel plate in end face, the bottom surface of framework beam-ends, and is with cementing agent that the steel plate bonding is fixing.Wherein, steel plate is bonded and fixed at framework beam-ends end face and constitutes the hogging moment steel-bonded reinforcement, is fixed on the Vierendeel girder bottom surface and then constitutes the positive bending moment steel-bonded reinforcement.For the hogging moment steel-bonded reinforcement, how the steel plate head is anchored in the post at beam-ends hogging moment maximum, it is thorny technical barrier always, so far the form of structure that does not have a kind of stressed reliable, easy construction, the anchor structure that adopts mainly contains two kinds at present, is respectively steel corbel anchoring and the anchoring of angle steel bag post.
The steel corbel anchoring is reinforced as shown in Figure 3: strengthening steel slab 1 is bonded in the end face of beam, and its end is welded on the base plate 3 of steel corbel, and steel corbel is fixed on the facade of post, stiffener 2 and bracket base plate 3, strengthening steel slab 1 welding by the chemical anchor bolts in the implant post 5.The shortcoming of this structure is: after one, strengthening steel slab 1 is subjected to pulling force, because the flexural deformation of steel corbel, adds that chemical anchor bolts tensile strain own amplifies because of bracket, makes steel plate 1 unreliable in the anchoring of support node place, and stressed not direct; Two, require more for a long time when the hogging moment reinforced steel, the quantity of the chemical anchor bolts that converse will more, increase the difficulty of implantation chemical anchor bolts 5; Three, owing to will make steel corbel, and increase crab-bolt quantity, reinforcement cost is higher.
The anchoring of angle steel bag post is reinforced as Fig. 4, shown in Figure 5: leg steel 2 bag posts around post, stay a fixed gap between angle steel 2 and post 3, beam 4 and the plate, strengthening steel slab 1 and angle steel 2 welding, between strengthening steel slab 1 and the beam 4, and equal pressing structure adhesive between angle steel 2 and post 3 and beam 4 and the plate, bond-anchorage steel plate 1 and angle steel 2.The shortcoming of this structure is: one, steel plate 1 is subjected to pass in angle steel 2 behind the pulling force, and angle steel is subjected to curved being cut in the horizontal direction, and angle steel occurs bending and deformation and shear strain, makes steel plate 1 stressed unfavorable in the anchoring at node place, and promptly steel plate is directly unreliable in the pulling force transmission of node place; Two, steel member welding processing amount is big, and viscose glue must be clamp-oned the space with the moulding mode after the steel member has welded, and construction is complicated, and cost is higher.
Because the above-mentioned complexity that the Vierendeel girder hogging moment is reinforced, make the designing unit that has even be positive bending moment with the whole amplitude modulation of hogging moment, reinforce at the bottom of only steel plate being arranged in beam, avoid hogging moment and reinforce problem.
The utility model content
The purpose of this utility model is intended to provide a kind of stressed reliable, easy construction, reasonable feasible Vierendeel girder hogging moment ruggedized construction.
The technical solution of the utility model is:
A kind of Vierendeel girder hogging moment ruggedized construction, have one and be arranged in the beam of framework, the strengthening steel slab of post joint portion, this steel plate is bonded and fixed at the end face of beam-ends, it is characterized in that: be furnished with reinforcing bar on the described steel plate, this reinforcing bar part and steel plate welding, remaining part extends steel plate; Described frame column is provided with the bar planting hole corresponding with the reinforcing bar extension, and plant in this hole the reinforcing bar extension, and the hole internal clearance is filled with the anchoring agent.
Described steel plate is provided with anchor hole, and this hole is positioned at the tail end of reinforcing bar welding portion; Described Vierendeel girder is provided with the hole corresponding with the steel plate anchor hole, and the hole is built-in with crab-bolt, and the hole internal clearance is filled with the anchoring agent.
Described reinforcing bar is arranged symmetrically in the steel plate width direction.
The length of described reinforcing bar welding portion 〉=5 times bar diameter.
Hole on the described frame column is an inclined hole, its horizontal sextant angle≤5 °.
Exposed surface after described steel plate, the reinforcing bar anchoring is provided with anticorrosion coating.
Adopt the strenthening member of said structure stressed clear and definite, reliable, member is processed, strengthening construction is all very easy, and the effect after the reinforcing obviously is better than existing similar ruggedized construction.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the I-I view of Fig. 1.
Fig. 3 is existing a kind of ruggedized construction schematic diagram.
Fig. 4 is existing another kind of ruggedized construction schematic diagram;
Fig. 5 is the I-I view of Fig. 4.
The specific embodiment
Key problem in technology of the present utility model is the anchoring problem that has solved Vierendeel girder hogging moment steel-bonded reinforcement steel plate, makes the anchoring of hogging moment steel plate directly reliable, stressed clear and definite, and the Vierendeel girder stress performance after the reinforcing adheres to specification.This Vierendeel girder hogging moment ruggedized construction, referring to Fig. 1, Fig. 2, it specifically constructs as follows:
1. the specification of the radical of reinforcing bar 4 and diameter and institute's steel bonding plate 3 determines that by reinforcing design steel plate 3 is pasted on top, Vierendeel girder 2 termination, and reinforcing bar 4 is implanted in the frame column 1, and the reinforcing bar 4 of being planted is arranged in the width range of steel plate 3 symmetrically.
2. subdrilling reinforced hole; check bearing place back concrete cover thickness with instrument or manual raggle before the boring; the boring slight inclination is so that drilling construction; but gradient must be less than concrete cover thickness; in order to avoid injure former negative reinforcement 6; by the regulation of " anchoring rules behind the concrete structure ", boring should be less than 5 ° with horizontal angle simultaneously.
3. bored and inserted reinforcing bar 4 behind the hole, placed steel plate 3, reinforcing bar 4 is welded on the steel plate 3, taken off steel plate 3 and reinforcing bar 4 and weld, weld bead height and length are determined by calculating, but double welded joint length should not be less than 5d (d is a bar diameter).After reinforcing bar 4 welded with steel plate 3, the strenthening member of Vierendeel girder hogging moment promptly formed.
4. when installing, in the bar planting hole, inject the anchoring agent earlier, spread construction adhesive in the steel bonding scope, in reinforcing bar 4 patchholes, paste steel plate 3 simultaneously.Bar planting and steel bonding quality requirement are by related specifications and rules.
5. because the stressed axle center of steel plate 3 does not overlap with the stressed axle center of reinforcing bar 4, on steel plate 3, implant chemical anchor bolts 5, in order to overcome owing to steel plate 3 does not overlap the moment that forms with reinforcing bar 4 axle center.Crab-bolt 5 is near the tail end of every reinforcing bar 4, and quantity is identical with reinforcing bar 4, corresponding one by one the layout.
6. steel plate 3 and the reinforcing bar 4 showed behind the strengthening construction are coated with epoxy resin coating, are covered in the flooring finishing floated coat.

Claims (6)

1. Vierendeel girder hogging moment ruggedized construction, have one and be arranged in the beam of framework, the strengthening steel slab of post joint portion, this steel plate is bonded and fixed at the end face of beam-ends, it is characterized in that: be furnished with reinforcing bar on the described steel plate, this reinforcing bar part and steel plate welding, remaining part extends steel plate; Described frame column is provided with the bar planting hole corresponding with the reinforcing bar extension, and plant in this hole the reinforcing bar extension, and the hole internal clearance is filled with the anchoring agent.
2. Vierendeel girder hogging moment ruggedized construction according to claim 1, it is characterized in that: described steel plate is provided with anchor hole, and this hole is positioned at the tail end of reinforcing bar welding portion; Described Vierendeel girder is provided with the hole corresponding with the steel plate anchor hole, and the hole is built-in with crab-bolt, and the hole internal clearance is filled with the anchoring agent.
3. Vierendeel girder hogging moment ruggedized construction according to claim 1, it is characterized in that: described reinforcing bar is arranged symmetrically in the steel plate width direction.
4. Vierendeel girder hogging moment ruggedized construction according to claim 1 is characterized in that: the fusion length of described reinforcing bar welding portion 〉=5 times bar diameter.
5. Vierendeel girder hogging moment ruggedized construction according to claim 1 is characterized in that: the hole on the described frame column is an inclined hole, its horizontal sextant angle≤5 °.
6. Vierendeel girder hogging moment ruggedized construction according to claim 1 is characterized in that: the exposed surface after described steel plate, the reinforcing bar anchoring is provided with anticorrosion coating.
CN 200520035196 2005-08-19 2005-08-19 Frame beam hogging moment reinforced structure CN2821036Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520035196 CN2821036Y (en) 2005-08-19 2005-08-19 Frame beam hogging moment reinforced structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520035196 CN2821036Y (en) 2005-08-19 2005-08-19 Frame beam hogging moment reinforced structure

Publications (1)

Publication Number Publication Date
CN2821036Y true CN2821036Y (en) 2006-09-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520035196 CN2821036Y (en) 2005-08-19 2005-08-19 Frame beam hogging moment reinforced structure

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Country Link
CN (1) CN2821036Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102704698A (en) * 2012-05-04 2012-10-03 南京盛圆土木工程高科技有限公司 Fully prestressed and compositely integrally reinforced concrete structure
CN102777052A (en) * 2012-08-13 2012-11-14 黄智辉 Reinforced concrete jacket strengthening beam-column core area structure
CN104878948A (en) * 2015-04-07 2015-09-02 淮海工学院 Reinforced concrete frame beam hogging moment region reinforcing method and reinforcing device
CN110284725A (en) * 2019-06-25 2019-09-27 长安大学 A kind of reinforced concrete frame node negative moment of girder assembly steel construction and its reinforcement means

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102704698A (en) * 2012-05-04 2012-10-03 南京盛圆土木工程高科技有限公司 Fully prestressed and compositely integrally reinforced concrete structure
CN102704698B (en) * 2012-05-04 2015-10-28 南京盛圆土木工程高科技有限公司 A kind of full prestressing composite integrated reinforced steel concrete structure
CN102777052A (en) * 2012-08-13 2012-11-14 黄智辉 Reinforced concrete jacket strengthening beam-column core area structure
CN102777052B (en) * 2012-08-13 2014-08-06 黄智辉 Reinforced concrete jacket strengthening beam-column core area structure
CN104878948A (en) * 2015-04-07 2015-09-02 淮海工学院 Reinforced concrete frame beam hogging moment region reinforcing method and reinforcing device
CN104878948B (en) * 2015-04-07 2017-06-16 淮海工学院 A kind of reinforcement means of rc-frame-beam hogging moment area
CN110284725A (en) * 2019-06-25 2019-09-27 长安大学 A kind of reinforced concrete frame node negative moment of girder assembly steel construction and its reinforcement means

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20060927

Termination date: 20090921