CN205329889U - Interior sleeve pipe restraint folding steel plate energy dissipation brace - Google Patents

Abstract

The utility model discloses an interior sleeve pipe restraint folding steel plate energy dissipation brace, be in including a core section of thick bamboo, setting interior sleeve pipe, setting in the core section of thick bamboo are in the end bearing plate of core section of thick bamboo both sides nozzle, set up including in the sleeve pipe with the inboard cross fixed plate of being connected of end bearing plate, connect the cross gusset plate outside the bearing plate of end, a core section of thick bamboo is connected gradually by a plurality of power consumption units and forms, the power consumption unit includes a 4n antarafacial triangle -shaped. The utility model discloses energy dissipation brace passes through folding steel plate and produces crease in advance, can produce the yield line in crease department when bearing the load, and the power consumption ability of utilizing the yield line to increase this support sets up the sleeve pipe in the inside of a core section of thick bamboo simultaneously, improves the hoop restraint to a core section of thick bamboo, is convenient for improve the rigidity and the ultimate bearing capacity of this support.

Description

A kind of folding steel plate energy dissipation brace of inner sleeve constraint

Technical field

This utility model belongs to building structure energy dissipation brace field, relates to a kind of folding steel plate energy dissipation brace of inner sleeve constraint。

Background technology

Earthquake is a kind of strong natural disaster, and during earthquake, building can be formed fatefulue destruction by the energy of release。For the protecting energy building discharged when absorbing earthquake, it is to avoid because building is damaged by excessive energy input, the security of the lives and property of protection people, buckling restrained brace device is widely used。

Buckling restrained brace is mainly made up of parts such as central layer, trocar sheath, non-cohesive materials。In this technology, central layer is main stress unit, and under geological process, central layer deforms and consumes the energy that earthquake inputs, thus reaching the purpose of protection main body frame。Inner sleeve is by the constraint to central layer, it is prevented that central layer produces lateral buckling affects its energy consumption effect。

But current buckling-restrained energy dissipation brace plastic hinge occurs less, the energy dissipation capacity of monoblock central layer can not be played, the yield point position of uncontrollable central layer, the quantity that uncontrollable plastic hinge occurs, this energy-dissipating property allowing for whole support can not realize accurate control, thus getting a desired effect。

Utility model content

Technical problem: this utility model provides a kind of core cylinder utilizing folding steel plate to be formed to replace central layer as main bearing member, after utilizing the surrender that it is good, energy dissipation capacity reduces the seismic response of building, make simple, it is easily installed, it is applicable to structural seismic aspect, effectively the folding steel plate energy dissipation brace of inner sleeve constraint of earthquake disaster mitigation。

Technical scheme: the folding steel plate energy dissipation brace of inner sleeve of the present utility model constraint, including core cylinder, it is arranged on the inner sleeve in described core cylinder, it is arranged on the termination bearing plate of described core cylinder both sides nozzle, plate fixed in the cross being arranged in inner sleeve and be connected inside the bearing plate of termination, it is connected to the cruciform gusset plate outside the bearing plate of termination, described core cylinder is connected in sequence by multiple power consumption unit, described power consumption unit includes 4n antarafacial triangle, wherein 2n is first kind triangle, 2n is Equations of The Second Kind triangle, each two first kind vertex angle connects setting, constitute a packet, each two Equations of The Second Kind triangle base connects setting, constitute a packet, the packet of first kind triangle is grouped adjacent connection with Equations of The Second Kind triangle, it is spliced into a cylindrical member, n is power consumption unit end polygon edge number, n >=3。

Further, in this utility model, the size of described termination bearing plate is equivalently-sized with the nozzle of core cylinder。

Further, in this utility model, there is gap between described core cylinder inwall and inner sleeve, be wherein filled with non-cohesive material。

Further, in this utility model, described cruciform gusset plate is welded with vertical ribbed stiffener。

Steel plate is adopted the mode of punching press to make it folding line occur by folding steel plate energy dissipation brace of the present utility model, be equivalent to introduce initial imperfection among steel plate, and then the position that plastic hinge occurs can be controlled, plastic hinge is made to occur near folding line, it is also possible to control the quantity of plastic hinge by controlling the quantity of folding line。Then the Plate Welding after punching press is become tubular, add stability simultaneously, be not susceptible to out-of-plane buckling。

The folding steel plate energy dissipation brace of this utility model inner sleeve constraint is by core cylinder, inner sleeve, termination bearing plate, cross fixing plate, cruciform gusset plate, non-cohesive material, and ribbed stiffener is constituted；Its SMIS cylinder is to be become tubular by general steel plate through punch welding, and its folded section is made up of the power consumption unit that physical dimension is identical。And power consumption cell cube four sides all adopts identical folding line, its structural form is relatively easy, easy to make；Termination bearing plate is connected with core cylinder, cruciform gusset plate, the fixing plate of cross, and load passes to core cylinder uniformly。The position of inner sleeve determined by the fixing plate of cross, is welded in inside the bearing plate of termination。This support is connected by cruciform gusset plate with framework。Inner sleeve restriction power consumption section folding line place occurs that excessive deformation affects the energy-dissipating property of whole support。Non-cohesive material is covered in inner sleeve outer surface, weakens the friction between inner sleeve and core cylinder, and ribbed stiffener is arranged on cruciform gusset plate, it is prevented that gusset plate compressive buckling。

The folding steel plate energy dissipation brace of inner sleeve of the present utility model constraint produces pre-folding line by folding steel plate, yield line can be produced at folding line place when bearing load, utilize yield line to increase the energy dissipation capacity of this support, sleeve pipe is set in the inside of core cylinder simultaneously, improve the hoop constraint to core cylinder, it is simple to improve rigidity and the ultimate bearing capacity of this support。

Its core is core cylinder, and core cylinder has embodied a concentrated reflection of the design principle of utility model, and illustrates during for n=4:

Described core cylinder, in Fig. 1 shown in 1, it is that steel plate forms through punch welding, the power consumption unit being made up of the isosceles triangle of a series of congruences can be formed through punching press, form tubular then through welding, as shown in Figure 4, for ensureing good energy dissipation capacity, just with processing, steel used preferentially adopt mild steel, Q235 or high performance steel, and steel plate thickness used is not preferably greater than 50mm。

Described inner sleeve, in Fig. 1 shown in 5, preferential employing steel are made, it is possible to be round steel pipe, square steel tube, existing steel pipe specification on preferential use market。Described non-cohesive material is arranged between core cylinder and inner sleeve, and in Fig. 1 shown in 6, non-cohesive material is the layer of silica gel that 2mm is thick, is used for the friction weakening between inner sleeve and core cylinder。

Described termination bearing plate is arranged at core cylinder both ends, in Fig. 1 shown in 3, is cut into by high strength steel plate and the hexahedron of the unit side-anastomosis that consumes energy, is welded in core cylinder two ends。Plate fixed in described cross, is welded in inside the bearing plate of termination in Fig. 1 shown in 4, the position of restriction inner sleeve。Described cruciform gusset plate, in Fig. 1 shown in 2, adopts the steel identical with termination bearing plate, is welded on the bearing plate of termination。Described ribbed stiffener, in Fig. 1 shown in 7, arranges four roads altogether, and per pass is made up of four identical steel plates, is welded on cruciform gusset plate。

Beneficial effect: this utility model compared with prior art, has the advantage that

Existing buckling restrained brace adopts trocar sheath to limit the flexing of its central layer, it is impossible to controls central layer and position and the quantity of plastic hinge occurs so that the energy dissipation capacity of existing buckling restrained brace does not reach desirable effect。Creationary in this utility model introduce core cylinder, and inner sleeve is set in core cylinder, make core cylinder and inner sleeve collaborative work, when core cylinder bearing load contacts with inner sleeve, utilize contacting with each other of inner sleeve and core cylinder, increase the rigidity of core cylinder, improve its ultimate bearing capacity, the hysteretic energy performance of core cylinder can also be improved, thus consume the energy that building is inputted by earthquake better when earthquake simultaneously。

The side of this core cylinder all adopts triangle folding line, folding line form is succinct, it is convenient for punching press to make, when bearing geological process, it is limited primarily by the xial feed that building frame transmits, this xial feed can be pulling force, can also be pressure, when it is subject to load action, it is possible to occur to stretch or compression so that this core cylinder slides in trocar sheath, core cylinder is produced effect of contraction by trocar sheath, prevent core cylinder generation out-of-plane buckling so that it is can only occur to stretch or compression at its length direction, to guarantee its energy-dissipating property。

This utility model supports the central layer adopting folding steel plate core cylinder to replace in existing utility model, core cylinder is adopted to increase the hysteretic energy performance of whole support, this core cylinder is to be produced a series of triangle folding line by plain plate thereon through punching press, this core cylinder can launch, punching press produces folding line and is equivalent to be artificially induced defect, make this be supported on folding line place and occur that plastic hinge absorbs energy, the number of plastic hinge appearance can also be controlled by controlling the quantity of folding line simultaneously, core cylinder can realize many places folding line and plastic hinge occurs, adds the energy dissipation capacity of support。Introducing inner sleeve inside this core cylinder, this inner sleeve is then stuck on the fixing plate of cross, by this setting, it is prevented that core cylinder generation flexing, and when being welded with ribbed stiffener on the cruciform gusset plate of this support to prevent its pressurized, flexing occurs。

This support processing and fabricating is simple, easy for installation, has good shock resistance and energy dissipation capacity, is a kind of outstanding energy dissipation component。

Accompanying drawing explanation

Fig. 1 is the folding steel plate energy dissipation brace structural map of inner sleeve constraint。

Fig. 2 is termination bearing plate connecting structure detail drawing。

Fig. 3 is Section A-A structural map。

Fig. 4 is power consumption unit module structural map, and wherein Fig. 4 a is power consumption unit shaft mapping, and Fig. 4 b is power consumption unit left view, and Fig. 4 c is power consumption unit front view。

Fig. 5 is power consumption unit folding mode schematic diagram, and wherein dotted line is indenture。

Fig. 6 is power consumption cell node coordinate schematic diagram。

Fig. 7 is power consumption unit size schematic diagram, and wherein Fig. 7 a is the power consumption unit projection to YZ face, and Fig. 7 b is in the congruent triangles of this unit of composition。

Figure has: plate 4, inner sleeve 5, non-cohesive material 6, ribbed stiffener 7 fixed in core cylinder 1, cruciform gusset plate 2, termination bearing plate 3, cross。

Detailed description of the invention

Below in conjunction with embodiment and Figure of description, this utility model is further described。

Embodiment 1

As shown in Figures 1 to 5, this utility model is that ribbed stiffener 7 seven part is constituted by core cylinder 1, cruciform gusset plate 2, termination bearing plate 3, cross fixing plate 4, inner sleeve 5, non-cohesive material 6。Core cylinder 1 is through being stamped and formed out different simple geometry figures by steel plate, then carries out being welded to tubular。As shown in Figure 4, in the present embodiment, the geometric figure on core cylinder 1 is the combination of isosceles triangle。Its folding mode is as it is shown in figure 5, be the folding line pattern in this embodiment, and two ends carry out being welded into core cylinder 1, and dotted line is indenture。As in figure 2 it is shown, what be connected with core cylinder 1 is termination bearing plate 3, termination bearing plate 3 is welded in core cylinder 1 nozzle four limit, and termination bearing plate 3 size is equivalently-sized with core cylinder 1 nozzle。Meanwhile, the fixing plate 4 of cross is welded in inside termination bearing plate 3。Termination bearing plate 3 opposite side welds with cruciform gusset plate 2, and cruciform gusset plate 2 is connected with fabric structure framework, is often all welded with twice ribbed stiffener 7 on end cruciform gusset plate。Being coated with non-cohesive material on inner sleeve 5 outer wall, this non-cohesive material adopts layer of silica gel, and thickness is 2mm。

Embodiment 2

The present embodiment is identical with embodiment 1 remainder, the difference is that the pipe of inner sleeve 5 is changed to square tube to provide constraint。

Spatial configuration for more clearly from expressor unit, set up rectangular coordinate system in space and the coordinate of each node is described, as shown in Figure 6, zero O is the center of subelement, makes X-axis with the diagonal FH place straight line of tetragon EFGH, and pointing to H from F is positive direction, Z axis is made with this tetragon another diagonal EG place straight line, being pointed to G by E is positive direction, and to cross some O and the straight line vertical with X-axis, Z axis as Y-axis, positive direction be from face ABCD sensing face IJKL。

Power consumption unit size to meet following condition, and (θ is the dihedral angle of △ DCG and △ LKG, α is the angle of △ DCG and XY face, a is the length of side of square ABCD, b is the catercorner length of square EFGH, c is the length of the waist of any one isosceles triangle of composition subelement, d is the height on this isosceles triangle base, and l is the subelement projected length along Y direction):

$b=\sqrt{2}a;c=\sqrt{{\left(\frac{a}{2}\right)}^2+d^2};d=\frac{l}{2cos\mathrm{\α}};\mathrm{\θ}=\mathrm{\π}-2\mathrm{\α}.$

Each node coordinate is:

$\begin{array}{c}\begin{array}{cccc}A\left(\begin{array}{ccc}\frac{a}{2},& -\frac{l}{2},& -\frac{a}{2}\end{array}\right),& B\left(\begin{array}{ccc}-\frac{a}{2},& -\frac{l}{2},& -\frac{a}{2}\end{array}\right),& C\left(\begin{array}{ccc}-\frac{a}{2},& -\frac{l}{2},& \frac{a}{2}\end{array}\right),& D(\begin{array}{cc}\frac{a}{2},& -\frac{l}{2},\end{array}\end{array}\\ \frac{a}{2})\end{array}$

$\begin{array}{cccc}E\left(\begin{array}{ccc}0,& 0,& -\frac{b}{2}\end{array}\right),& F\left(\begin{array}{ccc}-\frac{b}{2},& 0,& 0\end{array}\right),& G\left(\begin{array}{ccc}0,& 0,& \frac{b}{2}\end{array}\right),& H\left(\begin{array}{ccc}\frac{b}{2},& 0,& 0\end{array}\right)\end{array}$

$\begin{array}{cccc}I\left(\begin{array}{ccc}\frac{a}{2},& \frac{l}{2},& -\frac{a}{2}\end{array}\right),& J\left(\begin{array}{ccc}-\frac{a}{2},& \frac{l}{2},& -\frac{a}{2}\end{array}\right),& K\left(\begin{array}{ccc}-\frac{a}{2},& \frac{l}{2},& \frac{a}{2}\end{array}\right),& L\left(\begin{array}{ccc}\frac{a}{2},& \frac{l}{2},& \frac{a}{2}\end{array}\right).\end{array}$

Above-described embodiment is only preferred implementation of the present utility model; it is noted that, for those skilled in the art; under the premise without departing from this utility model principle; some improvement and equivalent replacement can also be made; this utility model claim is improved and is equal to the technical scheme after replacing by these, each falls within protection domain of the present utility model。

Claims (4)

1. the folding steel plate energy dissipation brace of inner sleeve constraint, it is characterized in that, this energy dissipation brace includes core cylinder (1), it is arranged on the inner sleeve (5) in described core cylinder (1), it is arranged on the termination bearing plate (3) of described core cylinder (1) both sides nozzle, the fixing plate (4) of the cross being arranged in inner sleeve (5) and be connected inside termination bearing plate (3), it is connected to the cruciform gusset plate (2) in termination bearing plate (3) outside, described core cylinder (1) is connected in sequence by multiple power consumption unit, described power consumption unit includes 4n antarafacial triangle, wherein 2n is first kind triangle, 2n is Equations of The Second Kind triangle, each two first kind vertex angle connects setting, constitute a packet, each two Equations of The Second Kind triangle base connects setting, constitute a packet, the packet of first kind triangle is grouped adjacent connection with Equations of The Second Kind triangle, it is spliced into a cylindrical member, n is power consumption unit end polygon edge number, n >=3。

2. the folding steel plate energy dissipation brace of inner sleeve according to claim 1 constraint, it is characterised in that the size of described termination bearing plate (3) is equivalently-sized with the nozzle of core cylinder (1)。

3. the folding steel plate energy dissipation brace of inner sleeve according to claim 1 and 2 constraint, it is characterised in that be provided with gap between described core cylinder (1) inwall and inner sleeve (5), be wherein filled with non-cohesive material (6)。

4. the folding steel plate energy dissipation brace of inner sleeve according to claim 1 and 2 constraint, it is characterised in that be welded with vertical ribbed stiffener (7) on described cruciform gusset plate (2)。