A kind of benzvalene form sliding friction-roller bearing rolling friction combined isolation bearing
Technical field
The present invention relates to a kind of building and bridge construction shock isolating pedestal, particularly relate to a kind of benzvalene form sliding friction-roller bearing rolling friction combined isolation bearing.
Background technology
Earthquake is one of common disaster of the earth, usually causes building and the collapsing of bridge construction thing, brings great impact to economy and social development.It is not only uneconomical that the rigidity that simple dependence improves works resists earthquake disaster, but also likely increase seismic forces, really can not play the object of antidetonation.In building and bridge construction seismic design, introduce seismic isolation technology, can make earthquake isolating equipment under the prerequisite meeting normal usage function requirement, reach the object of extending structure cycle, earthquake energy, reduction structural response.
When earthquake occurs, in order to ensure that the wounded are rescued timely and treat, hospital architecture can not be collapsed; In order to ensure that disaster relief personnel and goods and materials enter into disaster area, the lifeline engineering such as bridge must ensure safe and smooth.When said structure thing is designed and constructed, appropriate design and installation earthquake isolating equipment can well avoid it under geological process, collapse to occur.
Along with the development of building structure seismic isolation technology, current a lot of earthquake-prone countries and area in the world, when building and bridge construction is newly-built, shock isolating pedestal is installed, by reliable earthquake isolating equipment reasonable in design, it is made to play a significant role in structural seismic, make the most power consumption of works and concentration of plastic deformation in these earthquake isolating equipments, allow earthquake isolating equipment larger plastic strain occurs under rarely occurred earthquake effect and there is certain permanent set, thus ensure that other structural element is in elasticity or finite plastic domain.
Shock isolating pedestal conventional in works at present has the types such as lead core rubber support, high-damp rubber support and ball pivot sliding bearing.The major defect of neoprene bearing is that tonnage is low, loss of properties on aging; The shortcoming of ball pivot sliding bearing is that force of sliding friction is large, needs to set up tetrafluoroethene plate and reduces friction factor.Comparatively speaking, rolling friction bearing can overcome the problems referred to above well, and the frictional force of rolling friction, much smaller than sliding friction, can realize surrendering rear zero stiffness, and stress performance is stablized.
Rolling friction bearing adopts roller bearing to roll and resists horizontal seismic force, needs self-resetting capability after the earthquake, helps bearing to set back, reduces residual displacement after shaking; Force of rolling friction is less, will avoid bearing generation larger displacement, therefore suitably must adopt other measure increasing friction forces, improve energy dissipation capacity under the normal service load effect such as temperature, controls Structure displacement under normal service load effect.
Summary of the invention
Technical problem to be solved by this invention is to provide that a kind of form of structure is simple, energy dissipation capacity is strong and be easy to the benzvalene form sliding friction-roller bearing rolling friction combined isolation bearing controlling force of sliding friction and displacement.
The present invention solves the problems of the technologies described above adopted technical scheme:
A kind of benzvalene form sliding friction-roller bearing rolling friction combined isolation bearing, comprises upper bracket plate, middle sliding panel, lower support plate, the roller bearing that is placed on the pot bearing fuse between upper bracket plate and middle sliding panel and is placed between middle sliding panel and lower support plate; Described upper bracket plate upper surface is plane, soffit is plane, described upper bracket plate soffit both sides are provided with the horizontal block group of upper bracket plate, and described upper bracket plate bottom surface is provided with corrosion resistant plate, to reduce the force of sliding friction between upper bracket plate and pot bearing fuse upper surface; Described middle sliding panel is between upper bracket plate and lower support plate, and described middle sliding panel upper surface is plane, and described middle sliding panel soffit is Shuan Po inclined-plane, and described middle sliding panel four sides arrange middle sliding panel block group; Described lower support plate end face and bottom surface are all planes, and described lower support plate arranges the horizontal block group of lower support plate in two sides being parallel to roller bearing rotating direction; Described pot bearing fuse is arranged between upper bracket plate and middle sliding panel, and described pot bearing fuse upper and lower surface is plane; Described roller bearing is cylinder, and cross section is annular.
Described middle sliding panel block group by the longitudinal block of sliding panel in vertical with pot bearing fuse glide direction and parallel with pot bearing fuse glide direction in the horizontal block of sliding panel form.
The horizontal block group of described upper bracket plate is made up of horizontal block in the outer horizontal block of upper bracket plate, upper bracket plate and four upper bracket plate anchor bolts between the two; Four described upper bracket plate anchor bolts for horizontal block in fixing described upper bracket plate, and pass through to regulate the frictional force between the horizontal block of the middle sliding panel described in degree of tightness control of upper bracket plate anchor bolt and the horizontal block group of upper bracket plate.
The horizontal block group of described lower support plate is made up of horizontal block in the outer horizontal block of lower support plate, lower support plate and four lower support plate anchor bolts between the two; Four described lower support plate anchor bolts for horizontal block in fixing described lower support plate, and pass through to regulate the frictional force between the longitudinal block of the middle sliding panel described in the control of the degree of tightness of lower support plate anchor bolt and the horizontal block group of lower support plate.
Described pot bearing fuse bottom surface is rubber tile, is middle steel plate, arranges tetrafluoroethene plate above described middle steel plate above described rubber tile, to reduce the force of sliding friction between pot bearing fuse and upper bracket plate bottom surface corrosion resistant plate; Described rubber tile is rectangle, and end face and the bottom surface of described rubber tile are plane; Described middle steel plate is rectangle, and described middle steel plate bottom surface is plane, and described middle steel plate end face is provided with rectangular recess, for installing and fixing tetrafluoroethene plate; Described tetrafluoroethene plate is rectangle, is arranged in middle steel plate end face groove.
Described pot bearing fuse only slides along the length direction of the horizontal block group of upper bracket plate, when described pot bearing fuse slides, is laterally subject to the spacing of the horizontal block group of described upper bracket plate and the horizontal block of described middle sliding panel.
Longitudinally be subject to the spacing of the horizontal block of described middle sliding panel when described roller bearing rolls, be laterally subject to the spacing of the longitudinal block of described middle sliding panel.
When there is earthquake, this bearing upper bracket plate and lower support plate can along two in-plane generation relative displacements, rubber tile bottom described pot bearing fuse makes described upper bracket plate freely to rotate when compressing, and described middle sliding panel is convenient on the Shuan Po inclined-plane of described middle sliding panel soffit and roller bearing automatically resets under Gravitative Loads; Frictional force between the described longitudinal block of middle sliding panel and the horizontal block group of described lower support plate can provide extra friction energy-dissipating; The pot bearing of described upper bracket plate, described pot bearing fuse and described middle sliding panel composition can make upper bracket plate and lower support plate, after pot bearing fuse glide direction overcomes force of sliding friction, relative displacement occur.
Compared with prior art, the invention has the advantages that: this shock isolating pedestal has less frictional force at roller bearing rotating direction, post-yield stiffness is almost nil, frictional force can regulate, realize larger energy dissipation capacity, other direction pot bearing upper bracket plate and lower support plate can occurred level relative displacements after overcome friction, can the displacement of appropriate design both direction and yield force as required, realize extending structure cycle, dissipation seismic energy and reduce the function of seismic structural response.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is sectional view of the present invention;
Fig. 3 is lower support plate top view of the present invention;
Fig. 4 is lower support plate constructional drawing of the present invention;
Fig. 5 is horizontal block constructional drawing in lower support plate of the present invention;
Fig. 6 is lower support plate anchor bolt constructional drawing of the present invention;
Fig. 7 is roller bearing constructional drawing of the present invention;
Fig. 8 is middle sliding panel top view of the present invention;
Fig. 9 is middle sliding panel upward view of the present invention;
Figure 10 is pot bearing fuse constructional drawing of the present invention;
Figure 11 is pot bearing fuse rubber tile constructional drawing of the present invention;
Figure 12 is pot bearing fuse middle steel plate constructional drawing of the present invention;
Figure 13 is pot bearing fuse tetrafluoroethene plate constructional drawing of the present invention;
Figure 14 is upper bracket plate top view of the present invention;
Figure 15 is upper bracket plate constructional drawing of the present invention;
Figure 16 is horizontal block constructional drawing in upper bracket plate of the present invention;
Figure 17 is upper bracket plate anchor bolt constructional drawing of the present invention;
Figure 18 is that upper bracket plate corrosion resistant plate of the present invention makes figure.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 2, a kind of benzvalene form sliding friction-roller bearing rolling friction combined isolation bearing, comprises upper bracket plate 1, middle sliding panel 2, lower support plate 3, the roller bearing 5 that is placed on the pot bearing fuse 4 between upper bracket plate 1 and middle sliding panel 2 and is placed between middle sliding panel 2 and lower support plate 3; As shown in Fig. 2, Figure 14, described upper bracket plate 1 upper surface is plane, soffit is plane, described upper bracket plate 1 soffit both sides are provided with the horizontal block group 6 of upper bracket plate, described upper bracket plate 1 bottom surface is provided with corrosion resistant plate 7, to reduce the force of sliding friction between upper bracket plate 1 and pot bearing fuse 4 upper surface; As shown in Fig. 2, Fig. 8, Fig. 9, described middle sliding panel 2 is between upper bracket plate 1 and lower support plate 3, described middle sliding panel 2 upper surface is plane, and described middle sliding panel 2 soffit is Shuan Po inclined-plane, and described middle sliding panel 2 four sides arrange middle sliding panel block group 8; As shown in Figure 2 and Figure 3, described lower support plate 3 end face and bottom surface are all planes, and described lower support plate 3 arranges the horizontal block group 9 of lower support plate in two sides being parallel to roller bearing 5 rotating direction; As shown in Fig. 2, Figure 10, described pot bearing fuse 4 is arranged between upper bracket plate 1 and middle sliding panel 2, and described pot bearing fuse 4 upper and lower surface is plane; As shown in Figure 7, described roller bearing 5 is cylinder, and cross section is annular.
As shown in Figure 8, Figure 9, in this particular embodiment, described middle sliding panel block group 8 by the longitudinal block 10 of sliding panel in vertical with pot bearing fuse glide direction and parallel with pot bearing fuse glide direction in the horizontal block 11 of sliding panel form.
As shown in Figure 14, Figure 15, Figure 16, Figure 17, Figure 18, in this particular embodiment, the horizontal block group 6 of described upper bracket plate is made up of horizontal block 13 in the outer horizontal block 12 of upper bracket plate, upper bracket plate and four upper bracket plate anchor bolts 14 between the two; Four described upper bracket plate anchor bolts 14 for horizontal block 13 in fixing described upper bracket plate, and pass through to regulate the frictional force between the horizontal block 11 of the middle sliding panel described in degree of tightness control of upper bracket plate anchor bolt 14 and the horizontal block group 6 of upper bracket plate.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, in this particular embodiment, the horizontal block group 9 of described lower support plate is made up of horizontal block 16 and four lower support plate anchor bolts 17 between the two in the outer horizontal block 15 of lower support plate, lower support plate; Four described lower support plate anchor bolts 17 for horizontal block 16 in fixing described lower support plate, and pass through to regulate the frictional force between the longitudinal block 10 of the middle sliding panel described in the control of the degree of tightness of lower support plate anchor bolt 17 and the horizontal block group 9 of lower support plate.
As shown in Figure 10, Figure 11, Figure 12, Figure 13, in this particular embodiment, described pot bearing fuse 4 bottom surface is rubber tile 18, described rubber tile 18 is middle steel plate 19 above, described middle steel plate 19 arranges tetrafluoroethene plate 20, to reduce the force of sliding friction between pot bearing fuse 4 and upper bracket plate bottom surface corrosion resistant plate 7 above; Described rubber tile 18 is rectangle, and end face and the bottom surface of described rubber tile 18 are plane; Described middle steel plate 19 is rectangle, and described middle steel plate 19 bottom surface is plane, and described middle steel plate 19 end face is provided with rectangular recess, for installing and fixing tetrafluoroethene plate 20; Described tetrafluoroethene plate 20 is rectangle, is arranged in middle steel plate 19 end face groove.
As shown in Fig. 2, Fig. 8, Figure 14, in this particular embodiment, described pot bearing fuse 4 only slides along the length direction of the horizontal block group 6 of upper bracket plate, when described pot bearing fuse 4 slides, be laterally subject to the spacing of the horizontal block group 6 of described upper bracket plate and the horizontal block 11 of described middle sliding panel.
As shown in Fig. 2, Fig. 9, in this particular embodiment, when described roller bearing 5 rolls, be longitudinally subject to the spacing of the horizontal block 11 of described middle sliding panel, be laterally subject to the spacing of the longitudinal block 10 of described middle sliding panel.