A kind of assembly conversion type buckling-restrained energy-dissipation with anti-skid structure
Technical field
The utility model relates to science of bridge building structures and architectural engineering antivibration area, especially a kind of to have anti-Slipped Clove Hitch
The assembly conversion type buckling-restrained energy-dissipation of structure.
Background technique
Buckling-restrained energy-dissipation generally mainly includes that internal core stress unit and restraining tube unit form, when using anti-
When the structure of energy consuming support is by dynamic loads such as earthquakes, and hysteresis is surrendered by core material and achievees the effect that energy consumption, thus
Have the function that structure " fuse ".
Currently, the buckling-restrained energy-dissipation on domestic market is broadly divided into two major classes by constrained procedure: 1. clean steel class is anti-bends
Bent energy dissipation brace;2. steel-concrete class buckling-restrained energy-dissipation.In most of engineerings, engineer is for convenience usually anti-
Design of cores in buckling support at line-styled, however the anti-buckling support of this kind of core material to the construction size of casing require compared with
Greatly, it is also be easy to cause the difference of support both direction rigidity, in order to avoid this kind of problem, generally uses two methods, one is
Increase the thickness of core material, secondly for line-styled section is changed to " ten " word or " king " font etc..But first method can make core
Material thickness greatly increases, it will causes Z-direction performance issue, it will the performance for reducing buckling-restrained energy-dissipation influences the consumption of structure
Energy performance and security performance, and operability and the safety etc. for reducing buckling-restrained energy-dissipation and main structure connection construction,
Core material will need replacing as expensive Z-direction performance steel, therefore engineers often select second scheme --- say " one "
Font section is changed to " ten " word or " king " font cross-section, i.e., core material is divided into group core material and secondary core material, can guarantee to prop up in this way
The casing size of support is not too big, and makes close with Out-of Plane Stiffness in supporting surface.However, present " ten " word or " king " font etc.
Section mostly uses the mode of welding that major and minor core material links together, if to guarantee the stress performance of support, to weldquality
It is very high with welding process requirement, even if but meet weldquality requirement and the requirement of welding procedure, it welds generated remnants and answers
Influence of the amount of heat to core primary structure member mechanical property, power performance etc. when power and welding is still very big, weld seam ductility
It is poor, it is easy to breakoff phenomenon occur under dynamic load, the safety coefficient of structure will be greatly reduced in this.
In conclusion prismatic anti-buckling using existing " ten " word being welded or " king " font in building structure
Energy dissipation brace will face following problems: 1. weld seam ductility are poor, and position while welding is easy to appear corrosion problem;2. main core material and time core material
Different degrees of local buckling can first occur, it will influence the overall stability of support, the phenomenon that grouting material is easy to appear fragmentation;
3. main core material and time core material are using the connection type welded, the fixed one end of main core material and secondary core material one end only has, and is unfavorable for entirety
Energy consumption, energy-dissipating property will beat certain discount;4. influence of the initial imperfection to static performance and power performance compared with sheet metal compared with
Greatly;5. welding process requirement is high, loaded down with trivial details;6. the residual stress and residual deformation of welding are big, it is easy to produce installation deviation.It is above-mentioned this
A little problems all will significantly influence structural behaviour of the steel construction under all kinds of operating conditions, and design margin evaluation is lower.
The novel assembly conversion type buckling-restrained energy-dissipation that applicant applies on the same day, including main core material, secondary core material, main knot
Structure, the constraint element positioned at main core material, secondary core material periphery are obtained for connecting main core material, the connecting plate of secondary core material and connection bolt
The core stress unit arrived, the wherein where all core stress by being connected with other components suffered by buckling-restrained energy-dissipation
Unit is undertaken, and outer sleeve and packing material are provided solely for the effect of constraint core plate compressive buckling, with guarantee core plate in tension and
It can enter surrender under compression effect, have the shortcomings that energy consumption is in the form of a single.
Utility model content
In order to overcome suffered by existing buckling-restrained energy-dissipation the where all core stress by being connected with other components
Unit is undertaken, and outer sleeve and packing material are provided solely for the effect of constraint core plate compressive buckling, with guarantee core plate in tension and
It can enter surrender under compression effect, have the shortcomings that energy consumption is in the form of a single, the utility model provides a kind of with anti-Slipped Clove Hitch
The assembly conversion type buckling-restrained energy-dissipation of structure.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of assembly conversion with anti-skid structure
Formula buckling-restrained energy-dissipation, including main core material, secondary core material, the constraint element positioned at main core material, secondary core material periphery, for connecting master
Core material, the connecting plate of secondary core material and connection bolt obtain core stress unit, and the core stress unit passes through in the middle part of two sides
Welding manner is provided with the anti-skid structure of protrusion.
Preferably, the anti-skid structure uses material identical with main core material, secondary core material.
Further, the height value of the anti-skid structure is the 1/8~1/6 of main core material width.
Further, the thickness of the anti-skid structure is equal to the thickness of core stress unit.
Further, the corner cut value range at the both ends of the anti-skid structure is 45 °~60 °.
The beneficial effects of the utility model are mainly manifested in:
1, anti-buckling energy-consumption can be effectively reduced using " ten " word or the prismatic buckling-restrained energy-dissipation of " king " font
The maximum construction size of support, can be blocked up to avoid core thickness and have to select expensive Z-direction performance steel;
2, n connecting plate is set, buckling-restrained energy-dissipation is divided into the part of n+1 by high-strength bolt, it is similar at connecting plate
It has given support n fulcrum, under outer load action, has been not susceptible to the phenomenon that part is bent to bend phenomenon, and grouting material is less prone to fragmentation,
The overall stability of support can be improved, and then reduce the size of support outer tube, it is convenient to be filled with structure, improve the entirety of structure
Aesthetics;
3, when external load reaches certain numerical value, main core material and secondary core material between each connecting plate do not have any connection,
Before supporting integral yield, main core material and secondary core material between each connecting plate will first occur part song and bend, and reach preparatory energy consumption
Purpose.
4, by connection bolt, connecting plate is effectively connected main core material and secondary core material, between main core material and secondary core material
Globality and ductility preferably avoid effectively raising the durability of buckling-restrained energy-dissipation, carrying using cold wind connection type
Ability, ductility, Hysteresis Behavior, energy-dissipating property etc.;
5, when structure occur relative storey displacement when, energy consumption core material generate plastic deformation consumption energy, while consume energy core material with about
Relative displacement occurs for beam component, and relative motion occurs for the anti-skid structure and confining part being fixed on energy consumption core material, passes through piston
Friction with confining part consumes energy.
6, anti-skid structure is arranged in the anti-buckling support of tradition in the utility model, introduces friction energy-dissipating mechanism, effectively improves
The energy dissipation capacity of anti-buckling support and it can effectively reduce or eliminate the shearing between core primary structure member 1 and mortar.
Detailed description of the invention
Fig. 1 is the overall structure front cross-sectional of this practical assembly conversion type buckling-restrained energy-dissipation with anti-skid structure
Figure.
Fig. 2 is the cross-section diagram in Fig. 1 along anti-skid structure.
Wherein, 11, main core material;12, secondary core material;13, connecting plate;14, bolt is connected;15, structural connecting plates;16, structure
Connect bolt;17, non-cohesive material;18, anti-skid device;19, compression material;141, link bolt hole one;142, bolt is connected
Hole two;161, structure link bolt hole one;162, structure link bolt hole two;2, grouting material;3, casing;4, cover board;41, cover board
Hole;5, main structure.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
Embodiment 1: referring to Fig.1~Fig. 2, the utility model are a kind of novel assembly conversion type buckling-restrained energy-dissipation, packet
Main core material 11, secondary core material 12, main structure 5, the constraint element positioned at main core material, secondary core material periphery are included, for connecting main core material, pair
The connecting plate 13 and connection bolt 14 of core material, the structural connecting plates 15 for connecting support main structure connect bolt 16 with structure,
Non-cohesive material 17, compression material 19;The constraint element includes casing 3, cover board 4 and grouting material 2, wherein the main core
Material, secondary core material are located in described sleeve pipe, and the both ends installation cover board of described sleeve pipe simultaneously forms closed cavity, fill out in the closed cavity
Slurry is charged, core stress unit is obtained;The cover board hole stretched out for the main core material, secondary core material is had on the cover board
41, the main structure is located between the four block structure connecting plates stretched out, by structure connect bolt by four block structure connecting plates and
Main structure is fixed;Link bolt hole 1 is opened up on the main core material, secondary core material, connection spiral shell is opened up on the structural connecting plates
The link bolt hole one is aligned by keyhole 2 142 with link bolt hole two, and the main core material and secondary core material pass through connection bolt
It links together;The external of the connection bolt is arranged compression material, the main core material, secondary core material, connection bolt, outside connecting plate
One layer of non-cohesive material is arranged in portion surface;Structure link bolt hole 1 is opened up in the main core material, secondary core material and main structure,
Structure connection bolt 2 162 is opened up on the structural connecting plates, it is right that the structure link bolt hole one connects bolt two with structure
It full cries and sets, the main core material, secondary core material and main structure connect bolt by the structure and be attached.The core stress unit
The middle part of two sides is provided with the anti-skid device 18 of convex form by welding manner.The anti-skid structure uses and main core material, pair
The identical material of core material;The height value of the anti-skid structure is the 1/8~1/6 of main core material width;The thickness of the anti-skid structure
Degree is equal to the thickness of core stress unit;The corner cut value range at the both ends of the anti-skid structure is 45 °~60 °.This is practical new
Type is effectively connected main core material and secondary core material by connection bolt, connecting plate, between main core material and secondary core material globality with
Ductility preferably avoids being effectively raised the durability of buckling-restrained energy-dissipation using cold wind connection type, bearing capacity, being prolonged
Property, Hysteresis Behavior, energy-dissipating property etc.;When relative storey displacement occurs for structure, energy consumption core material generates plastic deformation consumption energy, simultaneously
Core material consume energy with confining part generation relative displacement, the anti-skid structure being fixed on energy consumption core material occurs to transport relatively with confining part
It is dynamic, energy is consumed by the friction of anti-skid structure and confining part, effectively increases the energy dissipation capacity of anti-buckling support and can be with
Effectively reduce or eliminate the shearing between core primary structure member 1 and mortar.
The above-mentioned description to the utility model is the further utilization and expansion for the ease of the person skilled in the art.It is ripe
The personnel for knowing the utility model field can do further extension to the utility model, and the utility model is not limited to instant example,
Anyone skilled in the art can all carry out extension modification, all modifications should be all within the protection scope of the utility model.