CN204676776U - Damaged replaceable composite column structure - Google Patents

Damaged replaceable composite column structure Download PDF

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Publication number
CN204676776U
CN204676776U CN201520268958.9U CN201520268958U CN204676776U CN 204676776 U CN204676776 U CN 204676776U CN 201520268958 U CN201520268958 U CN 201520268958U CN 204676776 U CN204676776 U CN 204676776U
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CN
China
Prior art keywords
replaceable
steel pipe
plate
spiro rod
square steel
Prior art date
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Withdrawn - After Issue
Application number
CN201520268958.9U
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Chinese (zh)
Inventor
郭子雄
刘阳
贾磊鹏
陈庆猛
连世洪
杨金芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Tefang Construction Engineering Group Co Ltd
Huaqiao University
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Xiamen Tefang Construction Engineering Group Co Ltd
Huaqiao University
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Priority to CN201520268958.9U priority Critical patent/CN204676776U/en
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Publication of CN204676776U publication Critical patent/CN204676776U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a kind of damaged replaceable composite column structure, comprise: a core square steel pipe, one ground beam end plate and four replaceable steel boxes, core square steel pipe is located on ground beam end plate, its lower end closed, its upper end is by the affixed RC post of some first built-in structures and offer the opening of an accommodation RC post lower end, ground beam end plate is fixedly arranged on grade beam by the second built-in structure, four replaceable steel boxes respectively dismountable wall being arranged at core square steel pipe with around this core square steel pipe, rear this kind of structure can only in periphery there is buckling failure in replaceable steel box position in shake, and only occur slight destruction at core square steel pipe position or do not occur destroying, the controllability of damage location is realized under the prerequisite ensureing vertical bearing capacity, excellent earthquake resistance, and after shake, pillar is resetted, replaceable steel box is pulled down, installation replaces with intact steel box and repaiies fast afterwards with the shake achieving structure.

Description

Damaged replaceable composite column structure
Technical field
The utility model belongs to construction engineering technical field, is specifically related to a kind of damaged replaceable composite column structure.
Background technology
Realizing structure earthquake and repair the important topic that the fast quick-recovery with building function is current earthquake engineering research field fast, is also that industrialization of construction industry realizes sustainable development to the assembly structure system innovation new requirement of proposition and challenge.But up to now, the research of restorability energy construction applications, mainly concentrates on the aspect such as replaceable energy dissipating coupling beam technology and Self-resetting shear wall structure of shear wall.As Chinese utility model patent CN201220411822.5 proposes a kind of Novel connected limb shear wall structure, comprise wall limb and its coupling beam; Described coupling beam comprises the end carriage that is in two ends and is in middle part and the more weak stage casing beam of intensity, and described stage casing beam is connected with end carriage described in two is dismantled and assembled.
In frame structure system, for realizing the damaged replaceable of structure, the general component of steel work type that adopts is as energy dissipating section and replaceable section.As in reinforced concrete post-girder steel (being called for short RCS) structural system, the end of girder steel can be used as energy dissipating section and replaces section.It is generally acknowledged, replaceable girder steel is as RCS combination construction first anti-vibration defense lines, and can take the lead in when meeting with large shake surrender power consumption, and can only carrying out replacement to replaceable section can recover structural performance after shake.
Under actual seismic effect, even if be provided with replaceable girder steel in RCS structure, inevitably will there is badly damaged or expendable destruction in bottom layer of the reinforcing steel concrete (being called for short RC) suspension column.This mainly appears at following two kinds of situations: (1), after replaceable girder steel occurs plastic hinge as RCS structure first anti-vibration defense lines, bottom suspension column still has and may occur plastic hinge under latter earthquake effect; (2) because the rigidity of basic grade beam is far longer than the rigidity of first floor girder steel, inflection point is generally positioned at post upper end, causes moment of flexure at the bottom of post much larger than capital moment of flexure.In this case, be often difficult at the bottom of RC post avoid first occurring plastic hinge than replaceable steel girder segment, thus fast quick-recovery structural performance after cannot realizing utilizing replaceable girder steel to realize shake.
Therefore, the research damaged replaceable technology of RC suspension column and self-reset technique seem particularly important.And the current research about the damaged replaceable technology of RC suspension column is still little, there is not yet the research report of the damaged replaceable technology of suspension column.
Utility model content
The purpose of this utility model is to overcome prior art defect, provides a kind of damaged replaceable composite column structure.
Concrete technical scheme of the present utility model is as follows:
A kind of damaged replaceable composite column structure, comprise: a core square steel pipe, one ground beam end plate and four replaceable steel boxes, core square steel pipe is located on ground beam end plate, its lower end closed, its upper end is by the affixed RC post of some first built-in structures and offer the opening of an accommodation RC post lower end, ground beam end plate is fixedly arranged on grade beam by some second built-in structures, four replaceable steel boxes respectively dismountable wall being arranged at core square steel pipe with around this core square steel pipe, each replaceable steel box comprises a rectangle hollow box body, some stringer boards contour with rectangle hollow box body, the top board of one connection stringer board upper end and rectangle hollow cassette upper end, one connects the base plate of stringer board lower end and rectangle hollow box body lower end and at least one parallel stiffener be located between top board and base plate.
In a preferred embodiment of the present utility model, described first built-in structure comprises one first nut and a head rod, this head rod comprises the first spiro rod section and one first lengths of rebar of adaptive first nut, first lengths of rebar is imbedded in RC post, first spiro rod section stretches out the lower end of RC post, and described core square steel pipe upper end is provided with the first installing hole passed for the first spiro rod section.
Preferred further, described first spiro rod section is connected by spot welding with described first installing hole.
Preferred further, described top board is provided with the first U-shaped hole of adaptive described first spiro rod section, first spiro rod section through the first installing hole and the first U-shaped Kong Houyu first nut adaptation, makes the top board of the upper end of RC post, core square steel pipe and replaceable steel box fix successively.
In a preferred embodiment of the present utility model, described second built-in structure comprises one second nut and one second connecting rod, this second connecting rod comprises the second spiro rod section and one second lengths of rebar of adaptive second nut, second lengths of rebar is imbedded in grade beam, second spiro rod section stretches out the upper surface of grade beam, and described ground beam end plate is provided with the second installing hole passed for the second spiro rod section.
Preferred further, described second spiro rod section is connected by spot welding with described second installing hole.
Further preferred, described base plate is provided with the second U-shaped hole of adaptive described second spiro rod section, the second spiro rod section successively through the second installing hole and the second U-shaped Kong Houyu second nut adaptive, make grade beam, the base plate of beam end plate and replaceable steel box fix.
In a preferred embodiment of the present utility model, described ground beam end plate is provided with the standing groove of an adaptive core square steel pipe lower end.
In a preferred embodiment of the present utility model, the described replaceable top board of steel box and the thickness of base plate are greater than the thickness of stringer board and stiffener and the wall thickness of rectangle hollow box body.
The beneficial effects of the utility model are:
The damaged replaceable composite column structure of one of the present utility model comprises: a core square steel pipe, one ground beam end plate and four replaceable steel boxes, core square steel pipe is located on ground beam end plate, its lower end closed, its upper end is by the affixed RC post of some first built-in structures and offer the opening of an accommodation RC post lower end, ground beam end plate is fixedly arranged on grade beam by the second built-in structure, four replaceable steel boxes respectively dismountable wall being arranged at core square steel pipe with around this core square steel pipe, rear this kind of structure can only in periphery there is buckling failure in replaceable steel box position in shake, and only occur slight destruction at core square steel pipe position or do not occur destroying, the controllability of damage location is realized under the prerequisite ensureing vertical bearing capacity, excellent earthquake resistance, and after shake, pillar is resetted, replaceable steel box is pulled down, installation replaces with intact steel box and repaiies fast afterwards with the shake achieving structure.
Accompanying drawing explanation
Fig. 1 is the perspective view of damaged replaceable composite column structure of the present utility model;
Fig. 2 is another perspective view of damaged replaceable composite column structure of the present utility model;
Fig. 3 is the perspective view of replaceable steel box of the present utility model;
Fig. 4 is the perspective view of head rod of the present utility model;
Fig. 5 is the perspective view of the second connecting rod of the present utility model.
Detailed description of the invention
By reference to the accompanying drawings the technical solution of the utility model be further detailed below by way of detailed description of the invention and describe.
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of damaged replaceable composite column structure, comprise: a core square steel pipe 1, one square ground beam end plate 2 and four replaceable steel boxes 3, core square steel pipe 1 is located on ground beam end plate 2, its lower end closed, its upper end is by the affixed RC post 5 of some first built-in structures 4 and offer the opening 11 of accommodation RC post 5 lower end, ground beam end plate 2 is fixedly arranged on grade beam 7 by some second built-in structures 6, which is provided with the standing groove 21 of adaptive core square steel pipe 1 lower end, four replaceable steel boxes 3 respectively dismountable wall being arranged at core square steel pipe 1 with around this core square steel pipe 1, each replaceable steel box 3 comprises a rectangle hollow box body 31, some stringer boards 32 contour with rectangle hollow box body 31, the top board 33 of one connection stringer board 32 upper end and rectangle hollow box body 31 upper end, one connects the base plate 34 of stringer board 32 lower end and rectangle hollow box body 31 lower end and at least one parallel stiffener 35 be located between top board 33 and base plate 34, replaceable steel box 3 can be occurred in a compressed state, and flexing is existing, the thickness of top board 33 and base plate 34 is greater than the thickness of stringer board 32 and stiffener 35 and the wall thickness of rectangle hollow box body 31.
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, described first built-in structure 4 comprises one first nut (not shown) and a head rod 42, this head rod 42 comprises the first spiro rod section 421 and one first lengths of rebar 422 of adaptive first nut, first lengths of rebar 422 is imbedded in RC post 5, first spiro rod section 421 stretches out the lower end of RC post 5, described core square steel pipe 1 upper end is provided with the first installing hole 12, the top board 33 of described replaceable steel box 3 is provided with the first U-shaped hole 36 of adaptive described first spiro rod section 421, first spiro rod section 421 is successively through adaptive with the first nut after the first installing hole 12 and the first U-shaped hole 36, and the first spiro rod section 421 is connected by spot welding with described first installing hole 12, make RC post 5, the upper end of core square steel pipe 1 and the top board 33 of replaceable steel box 3 fix, in the present embodiment, the lower end of described RC post 5 is provided with a up big and down small hierarchic structure, the upper end sidewall of described core square steel pipe 1 stretches out and forms square-shaped flange 13 with this hierarchic structure of support, described some first built-in structures 4 are uniformly distributed in four drift angles of the square-shaped flange 13 of core square steel pipe 1.
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 5, described second built-in structure 6 comprises one second nut (not shown) and one second connecting rod 62, this second connecting rod 62 comprises the second spiro rod section 621 and one second lengths of rebar 622 of adaptive second nut, second lengths of rebar 622 is imbedded in grade beam 7, second spiro rod section 621 stretches out the upper surface of grade beam 7, described ground beam end plate 2 is provided with the second installing hole 22, the base plate 34 of described replaceable steel box 3 is provided with the second U-shaped hole 37 of adaptive described second spiro rod section 621, second spiro rod section 621 is successively through adaptive with the second nut after the second installing hole 22 and the second U-shaped hole 37, and described second spiro rod section 621 is connected by spot welding with described second installing hole 22, make grade beam 7, the base plate 34 of ground beam end plate 2 and replaceable steel box 3 fixes.In the present embodiment, described some second built-in structures 6 are uniformly distributed in four drift angles of square ground beam end plate 2.
Preferably, the material of the first spiro rod section 421 of head rod 42 is that high duty metal material (M2010.9 level or M208.8 level) is made, first lengths of rebar 422 is plain bars, the tack of the first spiro rod section 421 is connected by the mode of wielding neck with the end of the first lengths of rebar 422, same, the material of the second spiro rod section 621 of the second connecting rod 62 is that high duty metal material (M2010.9 level or M208.8 level) is made, second lengths of rebar 622 is plain bars, the tack of the second spiro rod section 621 is connected by the mode of wielding neck with the end of the second lengths of rebar 622.
Concrete mounting method of the present utility model and operating principle as follows:
(1) linked together with the ground beam end plate 2 of standing groove 21 and the second spiro rod section 621 of the second connecting rod 62 by the mode of spot welding at the second tapping of ground beam end plate 2, ensure that the second connecting rod 62 is accurate with ground beam end plate 2 contraposition.Ground beam end plate 2 through the second connecting rod 62 is placed in grade beam 7 reinforcing cage, and ensure ground beam end plate 2 level, concreting is formed with the ground beam end plate 2 of standing groove 21 and the grade beam 7 of the second spiro rod section 621.
Beam end plate 2 four corner point second spiro rod section 621 lower ends, ground are together with Plate Welding, and rock-bolt length is identical to ensure end plate level, and steel plate bottom surface is concordant with grade beam 7 soffit plane.
(2) built-in U-shaped joint bar in core square steel pipe 1, ensure that interface, core square steel pipe 1 upper end there will not be the disengagement phenomenon of the square-shaped flange 13 of concrete and square steel pipe upper end under geological process, core square steel pipe 1 upper end open 11 and head rod 42 are connected in one by the mode of spot welding at the first installing hole 12 place, colligation upper reinforcement cage, builds core square steel pipe 1 inside and upper prop section concrete.
The cross section on the hierarchic structure top of core square steel pipe 1 section ratio RC post 5 is little, the first lengths of rebar 422 and the first spiro rod section 421 tack wielding neck, adopts the mode of surrounding weld all around, ensures that being welded as etc. of the first lengths of rebar 422 and the first spiro rod section 421 is fierce.
(3) upper shell of column is completed and grade beam 7 contraposition is spliced in the standing groove 21 upper shell of column core square steel pipe 1 being positioned over ground beam end plate 2, four replaceable steel boxes 3 being filled in core square steel pipe 1 surrounding, to complete the contraposition of replaceable steel box 3 assembled, twist solid first nut and the second nut, complete the splicing of whole assembled post.
Core square steel pipe 1 is positioned over not arrange in square steel pipe and grade beam 7 contact site after in standing groove 21 and is anyly connected measure, ensures that under seismic force effects core square steel pipe 1 can realize the connected mode of " hinged " with ground beam end plate 2.It is less that this kind of connected mode can to ensure that under geological process assembled section of central core square steel pipe 1 bears moment of flexure, and most of seismic energy is born by the replaceable steel box 3 in outside, realizes suspension column position structure damage-form and position controlled under geological process.The top board 33 of replaceable steel box 3 and base plate 34 relatively thick in prevent cripling
The thickness of the wall of rectangle hollow box body 31 and the thinner thickness of stringer board 32, there is flexing and dissipates substantial seismic energy in pressurized surrender, can resist part pulling force when replaceable steel box 3 tension.Sash plate 35 is set between stringer board 32 to increase the pressurized surrender bearing capacity of stringer board 32, prevents stringer board 32 from too early compressive buckling occurring.In order to improve thin web plate pressurized surrender ability further so that improve whole replaceable steel box 3 pressurized surrender ability, stiffener 35 can be set more between stringer board 32 or realize in the mode that replaceable steel box 3 side arranges panel.Between stringer board 32, leave the construction space of twisting solid first nut and the second nut, facilitate twisting solid and changing of replaceable steel box 3.
(4) replaceable steel box 3 is under seismic force effects, occurs the form of buckling failure, absorbs most of seismic energy, and now intercooler core square steel pipe 1 concrete is still in elastic stage or has and slightly buckles, and does not occur large plastic strain.After experiencing moderate or violent earthquake effect, pillar is resetted, unclamps the first nut and the second nut, replaceable for the periphery of damage steel box 3 is pulled down, install and replace with intact replaceable steel box 3, fastening high-strength bolt again, thus the shake achieving structure is repaired afterwards fast.Simultaneously quite front with shake in order to ensure to replace rear structural capacity, stronger replaceable steel box 3 can be replaced.
During little shake, the acting in conjunction of core square steel pipe 1 and periphery replaceable steel box 3, provides structure anti-side rigidity, and reduce relative storey displacement, the replaceable steel box 3 of core square steel pipe 1 and periphery is all in elastic stage, and the first level meeting specification " no damage in small earthquake " is set up defences target;
During middle shake, the replaceable steel box 3 of core square steel pipe 1 periphery produces moderate finite deformation, and absorb most of seismic energy, control structure relative storey displacement, core square steel pipe 1 is still in elastic stage, and the second level meeting specification " middle shake can be repaiied " is set up defences target;
During large shake; structure relative storey displacement is excessive; peripheral replaceable steel box 3 produces drastic deformation until damage; distortion and energy dissipation mainly concentrate on peripheral replaceable steel box 3 position; core square steel pipe 1 part is protected; ensure that structure does not collapse, the 3rd level meeting specification " no collapsing with strong earthquake " is set up defences target.
The above, be only preferred embodiment of the present utility model, therefore the scope that the utility model implements can not be limited according to this, the equivalence namely done according to the utility model the scope of the claims and description change with modify, all should still belong in scope that the utility model contains.

Claims (9)

1. damaged replaceable composite column structure, it is characterized in that: comprising: a core square steel pipe, one ground beam end plate and four replaceable steel boxes, core square steel pipe is located on ground beam end plate, its lower end closed, its upper end is by the affixed RC post of some first built-in structures and offer the opening of an accommodation RC post lower end, ground beam end plate is fixedly arranged on grade beam by some second built-in structures, four replaceable steel boxes respectively dismountable wall being arranged at core square steel pipe with around this core square steel pipe, each replaceable steel box comprises a rectangle hollow box body, some stringer boards contour with rectangle hollow box body, the top board of one connection stringer board upper end and rectangle hollow cassette upper end, one connects the base plate of stringer board lower end and rectangle hollow box body lower end and at least one parallel stiffener be located between top board and base plate.
2. damaged replaceable composite column structure as claimed in claim 1, it is characterized in that: described first built-in structure comprises one first nut and a head rod, this head rod comprises the first spiro rod section and one first lengths of rebar of adaptive first nut, first lengths of rebar is imbedded in RC post, first spiro rod section stretches out the lower end of RC post, and described core square steel pipe upper end is provided with the first installing hole passed for the first spiro rod section.
3. damaged replaceable composite column structure as claimed in claim 2, is characterized in that: described first spiro rod section is connected by spot welding with described first installing hole.
4. damaged replaceable composite column structure as claimed in claim 3, it is characterized in that: described top board is provided with the first U-shaped hole of adaptive described first spiro rod section, first spiro rod section through the first installing hole and the first U-shaped Kong Houyu first nut adaptation, makes the top board of the upper end of RC post, core square steel pipe and replaceable steel box fix successively.
5. damaged replaceable composite column structure as claimed in claim 1, it is characterized in that: described second built-in structure comprises one second nut and one second connecting rod, this second connecting rod comprises the second spiro rod section and one second lengths of rebar of adaptive second nut, second lengths of rebar is imbedded in grade beam, second spiro rod section stretches out the upper surface of grade beam, and described ground beam end plate is provided with the second installing hole passed for the second spiro rod section.
6. damaged replaceable composite column structure as claimed in claim 5, is characterized in that: described second spiro rod section is connected by spot welding with described second installing hole.
7. damaged replaceable composite column structure as claimed in claim 6, it is characterized in that: described base plate is provided with the second U-shaped hole of adaptive described second spiro rod section, second spiro rod section successively through the second installing hole and the second U-shaped Kong Houyu second nut adaptive, make grade beam, the base plate of beam end plate and replaceable steel box fix.
8. damaged replaceable composite column structure as claimed in claim 1, is characterized in that: described ground beam end plate is provided with the standing groove of an adaptive core square steel pipe lower end.
9. damaged replaceable composite column structure as claimed in claim 1, is characterized in that: the described replaceable top board of steel box and the thickness of base plate are greater than the thickness of stringer board and stiffener and the wall thickness of rectangle hollow box body.
CN201520268958.9U 2015-04-29 2015-04-29 Damaged replaceable composite column structure Withdrawn - After Issue CN204676776U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104847052A (en) * 2015-04-29 2015-08-19 华侨大学 Earthquake damage replaceable combination column structure
CN107060213A (en) * 2017-05-12 2017-08-18 长沙理工大学 A kind of reinforced column that stem and field-replaceable unit be set in failure site

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104847052A (en) * 2015-04-29 2015-08-19 华侨大学 Earthquake damage replaceable combination column structure
CN104847052B (en) * 2015-04-29 2017-04-05 华侨大学 A kind of damaged replaceable composite column structure
CN107060213A (en) * 2017-05-12 2017-08-18 长沙理工大学 A kind of reinforced column that stem and field-replaceable unit be set in failure site
CN107060213B (en) * 2017-05-12 2019-02-05 长沙理工大学 A kind of reinforced column in failure site setting stem and field-replaceable unit

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Granted publication date: 20150930

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