A kind of lead for retractable pencil corrugated steel tube constraint rubber support
Technical field
The present invention relates to a kind of shock isolating pedestal in architectural engineering, especially one kind areas that can be used for providing fortification against earthquakes to build
The lead for retractable pencil corrugated steel tube constraint rubber support for building object shock design, belongs to construction engineering technical field.
Background technique
China is the multiple country of an earthquake, and most widely used earthquake-resistant structure means are by structure itself at this stage
Anti-seismic performance resist the geological process estimated.But under violent earthquake effect, the destruction of unrepairable may occur for structure,
And it results in significant economic losses or casualties.Vibration-isolating system is by being arranged shock isolation system between basis and superstructure
Come the tectonic comparison that absorbs and dissipate, reduces the geological process of input superstructure, can effectively resist earthquake disaster.
Currently, the most commonly used lead core rubber support is by being vertically connected with steel plate and overlaying the sheet rubber between junction steel plate
It constitutes, has lead for retractable pencil in the center-filled of junction steel plate and sheet rubber, pressed from both sides in multilayer rubber and plug in steel disc, have vertical rigidity steady
It the advantages that fixed, horizontal rigidity meets conventional displacement demand, lead for retractable pencil damping is good, has been obtained in shock design relatively broad
Using.But since rubber is directly contacted with external environment, be easy to produce endurance issues, and surrounding rubber to the lead for retractable pencil at center about
Shu Zuoyong is limited, plays its energy dissipation capacity from stablizing.
Summary of the invention
In order to overcome the above-mentioned deficiency of the prior art, the present invention provides a kind of lead for retractable pencil corrugated steel tube constraint rubber support, should
Support can be improved the durability, longitudinal rigidity and deformability of rubber, moreover it is possible to improve the energy dissipation ability of lead for retractable pencil.
The technical solution used to solve the technical problems of the present invention is that: including lower junction steel plate, upper junction steel plate and perforation
Lead for retractable pencil set on the two center, be also coaxially provided between the lower junction steel plate and upper junction steel plate internal layer corrugated steel tube and
Outer layer corrugated steel tube, lead for retractable pencil are placed in the cavity of internal layer corrugated steel tube simultaneously, outer layer corrugated steel tube and internal layer corrugated steel tube it
Between be also filled with channel rubber.
Compared with prior art, a kind of lead for retractable pencil corrugated steel tube of the invention constraint rubber support has the following beneficial effects:
1, internal layer corrugated steel tube of the invention and outer layer corrugated steel tube are positioned by the lower junction steel plate of lower part, it is ensured that
Design thickness of the channel rubber between internal layer corrugated steel tube and outer layer corrugated steel tube;
2, the ripple and channel rubber of internal layer corrugated steel tube and outer layer corrugated steel tube of the present invention are mutually twisted, to ensure that
Operative constraint to channel rubber;And then effective constraint can be provided built-in lead for retractable pencil, improve its energy dissipation ability;
3, internal layer corrugated steel tube of the invention and outer layer corrugated steel tube and built-in lead for retractable pencil can provide ring to channel rubber
To constraint or support, the longitudinal rigidity and deformability of rubber are improved;Meanwhile by adjusting internal layer corrugated steel tube and outer layer ripple
The section of steel pipe and the thickness of channel rubber can effectively guarantee the horizontal seismic isolation characteristic and reset feature of support;
4, overall construction of the present invention is simple, easy for construction, has preferable vertical location, horizontal deformation and resists
Shake energy dissipation capacity.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the full sectional view of one embodiment of the invention.
Fig. 2 is the full sectional view of another embodiment of the present invention.
Fig. 3 is the cross-sectional view in Fig. 1 and Fig. 2 at A-A.
In figure: 1, lower junction steel plate, 2, outer layer corrugated steel tube, 3, channel rubber, 4, internal layer corrugated steel tube, 5, lead for retractable pencil, 6,
Upper junction steel plate, 7, weld seam.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, belongs to protection scope of the present invention.
Embodiment 1:
The present embodiment is illustrated in conjunction with Fig. 1 and Fig. 3.One of the present embodiment lead for retractable pencil corrugated steel tube constrains rubber branch
Seat is set between house foundation, bottom or substructure and superstructure, including lower junction steel plate 1, outer layer corrugated steel tube 2,
Channel rubber 3, internal layer corrugated steel tube 4, lead for retractable pencil 5 and upper junction steel plate 6.Lower junction steel plate 1 is for support of the present invention and structure base
Plinth, bottom or substructure are attached, and internal layer corrugated steel tube 4 is co-axially mounted in outer layer corrugated steel tube 2, and internal layer corrugated steel tube
4 upper end is cylinder-shaped and is plugged in the centre bore of junction steel plate 6, the lower end of internal layer corrugated steel tube 4 and outer layer ripple
The upper and lower ends of steel pipe 2 are connect with the inner surface of lower junction steel plate 1 and upper junction steel plate 6 using weld seam 7 respectively, channel rubber 3
It is filled between outer layer corrugated steel tube 2 and internal layer corrugated steel tube 4, lead for retractable pencil 5 is placed in the cavity of internal layer corrugated steel tube 4, upper connection
Steel plate 6 is attached with superstructure.
In the present embodiment, used in lower junction steel plate 1, upper junction steel plate 6, outer layer corrugated steel tube 2 and internal layer corrugated steel tube 4
The strength grade of steel can be Q235, Q345, Q390, Q420 or Q460.Outer layer corrugated steel tube 2 and internal layer corrugated steel tube 4 are adopted
With flat thread pipe or helical bellows, screw thread or corrugated shape can guarantee the occlusion of steel pipe and filled rubber, to guarantee
To the effect of contraction of laminated rubber 3 when later period stress.Channel rubber 3 can be not provided with sandwich clad steel also and interlayer steel can be set
Plate, should there are gaps when sandwich establishment steel plate, between sandwich clad steel and inside and outside corrugated steel tube.It is filled in internal layer corrugated steel tube 4
Lead for retractable pencil 5 can provide support for internal layer corrugated steel tube 4, to avoid leading to shock isolating pedestal since internal layer corrugated steel tube 4 deforms
Bearing capacity reduces, and lead for retractable pencil 5 can be perfused.Preferably, outer layer corrugated steel tube 2 and internal layer corrugated steel tube 4 are homogeneous tube, can to avoid by
Issuable defect is connected in segmentation.The design that advanced optimizes of this implementation is outer layer corrugated steel tube 2 and internal layer corrugated steel tube
4 be zinc-plated corrugated steel tube, it is possible to prevente effectively from corrosion of the adverse circumstances to steel pipe in shock isolating pedestal, and rubber is effectively prevent to press from both sides
The aging of layer 3, it is ensured that the durability of shock isolating pedestal is met the requirements.
The manufacturing process of the present embodiment is as follows:
Internal layer corrugated steel tube 4, outer layer corrugated steel tube 2, upper junction steel plate 1 and lower junction steel plate 6 are according to design size setting-out
Afterwards, internal layer corrugated steel tube 4, outer layer corrugated steel tube 2 be positioned coaxially to the center of lower junction steel plate 1, and with lower connection steel
Plate 1 is connected using weld seam 7, lead for retractable pencil 5 is then perfused in internal layer corrugated steel tube 4, later in outer layer corrugated steel tube 2 and internal layer ripple
Rubber is added between steel pipe 4 and forms channel rubber 3, then after outer layer corrugated steel tube 2 and upper junction steel plate 6 are connected using weld seam 7,
A kind of lead for retractable pencil corrugated steel tube for forming the embodiment of the present invention 1 constrains rubber support.
Embodiment 2:
In conjunction with Fig. 2 and Fig. 3, the present embodiment and the difference of embodiment 1 are only that, the upper and lower side of the internal layer corrugated steel tube 4
And the upper and lower side of outer layer corrugated steel tube 2 is positioned with the inner surface of lower junction steel plate 1 and upper junction steel plate 6 using spot welding respectively.
The difference of its manufacturing process is: outer layer corrugated steel tube 2 and internal layer corrugated steel tube 4 are positioned coaxially at lower connection steel
Behind the center of plate 1, the two is all positioned with lower junction steel plate 1 using spot welding, and lead for retractable pencil then is perfused in internal layer corrugated steel tube 4
5, it is added rubber between outer layer corrugated steel tube 2 and internal layer corrugated steel tube 4 later, then by outer layer corrugated steel tube 2 and internal layer ripple
Steel pipe 4 all with upper 6 spot welding of junction steel plate.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit of the invention, any simple modification and same variation are made to above embodiments, each fall within guarantor of the invention
Within the scope of shield.