CN104805851A - Bending moment-resistant reinforcer for expansion joint between side slope lattice beams - Google Patents
Bending moment-resistant reinforcer for expansion joint between side slope lattice beams Download PDFInfo
- Publication number
- CN104805851A CN104805851A CN201510232840.5A CN201510232840A CN104805851A CN 104805851 A CN104805851 A CN 104805851A CN 201510232840 A CN201510232840 A CN 201510232840A CN 104805851 A CN104805851 A CN 104805851A
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- Prior art keywords
- shrinkage joint
- intensive aspect
- side slope
- bending resistance
- interior
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bending moment-resistant reinforcer for an expansion joint between side slope lattice beams, which comprises cuboid reinforcing bodies and an anchor rod passing through the expansion joint in parallel, both sidewalls of the expansion joint are concave along the longitudinal direction of the lattice beams, so that grooves for fastening the reinforcing bodies are formed, and the reinforcing bodies are fixedly connected with the anchor rod. Because the reinforcing bodies are fixed by the anchor rod and expansion gaps are arranged, when the lattice beams deform in different directions under the action of a variety of factors (temperature change, creep deformation, earthquake and the like), external force is transferred onto the anchored anchor rod by the reinforcing bodies, and then acts on steadier rock in in a slope body, consequently, while the function of the expansion joint is ensured, the mechanical property of the lattice beams in different directions is improved, the bending moment resistance and other capability of the lattice beams are enhanced, the structural strength in side slope reinforcement is ensured, the overall strength of the lattice beams is enhanced, and the occurrence of major accidents is prevented.
Description
Technical field
The present invention relates to slope reinforcement field, be specifically related to a kind of side slope lattice beam shrinkage joint bending resistance square stiffening device.
Background technology
Side slope generally refers to the rock mass with face of slope, and because surface, slope tilts, under slope body self gravitation and other External Force Acting, whole slope body has the trend of sliding from high to low, and the mode generally can reinforced by lattice is reinforced side slope surface, lattice reinforcing technique utilizes cemented rock, cast-in-situ steel reinforced concrete or precast prestressed concrete carry out side slope surface protection, and a kind of reinforcing side slope technique utilizing anchor pole or anchor cable to be fixed, the Main Function of lattice is by the residual pushing force of Slope body or soil pressure, rock pressure distributes to anchor pole or the anchor cable at lattice node place, then good ground is passed to by anchor cable, thus make Slope body be in stable state under the effect of the anchored force provided by anchor pole or anchor cable, and in prior art, the every each 10-25 rice width of lattice needs to arrange shrinkage joint, for adapting to lattice girder in many factors (variations in temperature, creep deformation, load action, uneven settlement of foundation and earthquake) effect under produce distortion, and in shrinkage joint, clog pitch hemp cut or pitch plank, and such structure makes lattice girder bad not high with intensity in the bending resistance square ability at shrinkage joint place, be unfavorable for that lattice improves the firm of slope surface as a whole.
Therefore, for overcoming the above problems, need a kind of side slope lattice beam shrinkage joint bending resistance square stiffening device, ensureing the function at shrinkage joint simultaneously, improve the stress performance of the different directions of lattice girder, improve the abilities such as the bending resistance square of lattice girder, ensure the intensity of structure in slope reinforcement, the intensity of lattice girder entirety is improved, avoids the generation of unexpected major accident.
Summary of the invention
In view of this, the object of the invention is to overcome defect of the prior art, a kind of side slope lattice beam shrinkage joint bending resistance square stiffening device is provided, ensureing the function at shrinkage joint simultaneously, improve the stress performance of the different directions of lattice girder, improve the abilities such as the bending resistance square of lattice girder, ensure the intensity of structure in slope reinforcement, the intensity of lattice girder entirety is improved, avoids the generation of unexpected major accident.
Side slope lattice beam shrinkage joint bending resistance square stiffening device of the present invention, comprise rectangular shape intensive aspect and parallel across shrinkage joint anchor pole, the two side at described shrinkage joint all forms along longitudinal indent of lattice girder the groove being used for clamping intensive aspect, and described intensive aspect is fixedly connected with anchor pole and is provided with flexible gap between the end of intensive aspect and the bottom land of groove and between anchor pole and two side, shrinkage joint; Described intensive aspect is two pieces and is set up in parallel along shrinkage joint depth direction, also comprises and is arranged at intensive aspect surface for the drag reduction mechanism that reduces lattice girder longitudinal resistance and the bindiny mechanism for increasing bonding strength between intensive aspect be arranged between two intensive aspects.
Further, described drag reduction mechanism comprises the drag reduction part being arranged at intensive aspect surface, described drag reduction part be cylindrical and radial can deformation roll bar, described in roll bar and be multiple and longitudinal direction along intensive aspect is set up in parallel.
Further, described intensive aspect surface is horizontally arranged with cross section and is arc and for installing the groove rolling bar, the opening's edge width of described groove and the degree of depth are all less than the diameter rolling sliver transvers section.
Further, described intensive aspect at least comprises the outer reinforcement and interior intensive aspect that arrange along shrinkage joint depth direction ecto-entad, described syndeton comprises the external compression cover be slidably connected with anchor pole, interior clamping sleeve and for external compression to be overlapped and interior clamping sleeve is pressed in outer reinforcement and interior intensive aspect driven unit respectively, and described external compression cover is parallel with interior intensive aspect surface with outer reinforcement respectively with the inner face of interior clamping sleeve.
Further, described driven unit comprises drive sleeve, outer drive nut, interior drive nut and locking nut; Described drive sleeve is slidably connected with anchor pole and inwall is connected with the outer wall thread of interior drive nut, described interior drive nut is by drive sleeve rotary actuation and press on interior clamping sleeve, described outer drive nut is coated at drive sleeve and is threaded with drive sleeve, rotate the external compression cover that outer drive nut makes outer drive nut press on to be coated at drive sleeve, described locking nut is connected with spiral thread on anchor bolt and to drive sleeve axial locking.
Further, described drive sleeve outer end extends radially inwardly formation annular fixed seat, and described annular fixed seat and anchor pole are slidably connected.
Further, also comprise the weather strip cutting off shrinkage joint along the sealing of shrinkage joint depth direction, be provided with via hole and be coated at external compression cover in the middle of described weather strip, pitch hemp cut is built at the part shrinkage joint outside described weather strip.
Further, the opening's edge place at described lattice girder outer wall shrinkage joint arranges and is fixedly installed a pair holder, described holder is arranged at the both sides at shrinkage joint respectively, and described holder is vertically arranged with through hole along lattice girder, described pass through in be provided with the bending resistance bar be in axial sliding connection with holder.
Further, described weather strip is elastic rubber strip.
Further, described through hole and bending resistance bar are multiple and are all set up in parallel along the transverse direction of lattice girder.
The invention has the beneficial effects as follows: side slope lattice beam shrinkage joint bending resistance square stiffening device of the present invention, by anchor pole intensive aspect fixed and be provided with flexible gap, make lattice girder in many factors (variations in temperature, creep deformation, earthquake etc.) effect is lower when producing the distortion of different directions, by on anchor pole external force being passed to by anchoring of intensive aspect, and then act on the inner more firm rock of slope body, ensure the function at shrinkage joint simultaneously, improve the stress performance of the different directions of lattice girder, improve the abilities such as the bending resistance square of lattice girder, ensure the intensity of structure in slope reinforcement, the intensity of lattice girder entirety is improved, avoid the generation of unexpected major accident.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of drag reduction mechanism;
Fig. 3 is the top view of Fig. 1.
Detailed description of the invention
Fig. 1 is structural representation of the present invention, Fig. 2 is the structural representation of drag reduction mechanism, Fig. 3 is the top view of Fig. 1, as shown in the figure, side slope lattice beam shrinkage joint bending resistance square stiffening device in the present embodiment comprises the intensive aspect of rectangular shape and the anchor pole 2 parallel across shrinkage joint 9, because anchor pole 2 need be anchored in self-sustaining rock in the body of slope, make anchor pole 2 in domatic not necessarily vertical, so shrinkage joint 9 parallelly can be sandwiched in anchor pole 2 outward; The two side at described shrinkage joint 9 all forms along longitudinal indent of lattice girder the groove 3 being used for clamping intensive aspect, length direction and the lattice girder of described intensive aspect are parallel longitudinal, and described intensive aspect is fixedly connected with anchor pole 2 (anchor pole 2 through intensive aspect and available locking nut 54 fix) and be provided with flexible gap the bottom land of the end of intensive aspect and groove 3 and between anchor pole 2 and two side, shrinkage joint 9; Being formed as of described groove 3 coordinates intensive aspect conformal building to form at During Initial Stage Construction; Described intensive aspect is two pieces and is set up in parallel (shrinkage joint 9 depth direction represents vertical lattice depth of beam or thickness direction) along shrinkage joint 9 depth direction, also comprises and is arranged at intensive aspect surface for the drag reduction mechanism that reduces lattice girder longitudinal resistance and the bindiny mechanism for increasing bonding strength between intensive aspect be arranged between two intensive aspects; By anchor pole 2 intensive aspect fixed and be provided with flexible gap, ensureing the function at shrinkage joint 9 simultaneously, improve the stress performance of the different directions of lattice girder, improve the abilities such as the bending resistance square of lattice girder, ensure the intensity of structure in slope reinforcement, the intensity of lattice girder entirety is improved, avoids the generation of unexpected major accident.
2., in the present embodiment, described drag reduction mechanism comprises the drag reduction part being arranged at intensive aspect surface, described drag reduction part be cylindrical and radial can deformation roll bar 31, described in roll bar 31 and be multiple and longitudinal direction along intensive aspect is set up in parallel., the surface of described intensive aspect refers to the contact surface in the interior outside of intensive aspect and groove 3, it is inner that slope body is pointed in inside expression, by outside in intensive aspect, drag reduction part is set for reducing shrinkage joint 9 longitudinal stretching or the resistance to compression pression of lattice girder, under ensureing the state no matter being interior curved also outer arch at shrinkage joint 9 place of lattice girder, all there is less resistance to ensure the smoothness of the changes of slit length at shrinkage joint 9, ensure that the surface of contact surface is complete, and roll bar 31 and adopt high rigidity and smooth surface rubber strip, the radial deformation of rolling bar 31 can enlarge active surface, effectively reduce the footprint pressure of groove 3 inwall, ensure the complete and intensity of the inwall pattern of groove 3.
In 3 the present embodiment, described intensive aspect surface is horizontally arranged with cross section and is arc and for installing the groove 32 rolling bar 31, opening's edge width and the degree of depth of described groove 32 are all less than the diameter rolling bar 31 cross section, adopt that groove 32 is spacing rolls bar 31, avoid rolling bar 31 and slide and cause bite, and bar 31 can be rolled by groove 32 and arrange with intensive aspect surperficial uniformly, ensure intensive aspect uniform force, groove 32 structure is simple, handling ease, installs and rolls bar 31 fast and easy.
In 4 the present embodiment, described intensive aspect at least comprises the outer reinforcement 1a and interior intensive aspect 1b that arrange along shrinkage joint 9 depth direction ecto-entad, described syndeton comprises that the external compression be slidably connected with anchor pole 2 overlaps 41, interior clamping sleeve 42 and for external compression is overlapped 41 and interior clamping sleeve 42 be pressed in outer reinforcement 1a and interior intensive aspect 1b driven unit respectively, described external compression cover 41 is parallel with interior intensive aspect 1b surface with outer reinforcement 1a respectively with the inner face of interior clamping sleeve 42; Act on external compression cover 41 and interior clamping sleeve 42 by driven unit, make anchor pole 2 and outer reinforcement 1a and interior intensive aspect 1b integrally act on lattice girder; Avoid the defect be welded and fixed, ensure to connect between intensive aspect surely firmly, strengthen the structural strength at shrinkage joint 9, ensure that lattice is not fragile.
In 5 the present embodiment, described driven unit comprises drive sleeve 51, outer drive nut 52, interior drive nut 53 and locking nut 54, described drive sleeve 51 is slidably connected with anchor pole 2 and inwall is connected with the outer wall thread of interior drive nut 53, described interior drive nut 53 is by drive sleeve 51 rotary actuation and press on interior clamping sleeve 42, described outer drive nut 52 is coated at drive sleeve 51 and is threaded with drive sleeve 51, rotate the external compression cover 41 that outer drive nut 52 makes outer drive nut 52 press on to be coated at drive sleeve 51, described locking nut 54 is threaded with anchor pole 2 and to drive sleeve 51 axial locking, be locked by the assembling of driven unit, easy for installation, avoid complicated welding procedure and welding stress defect, ensure that anchor pole 2 is with interior, the structural strength of outer reinforcement 1a1a, bonding strength between intensive aspect is improved, and then ensure the structural strength at shrinkage joint 9.
In 6 the present embodiment, described drive sleeve 51 outer end extends radially inwardly formation annular fixed seat, and described annular fixed seat and anchor pole 2 are slidably connected, and by annular fixed seat, sleeve is driven more smooth and easy, steady, the thrust of compact heap in ensureing.
In 7 the present embodiment, also comprise the weather strip 6 cutting off shrinkage joint 9 along the sealing of shrinkage joint 9 depth direction, be provided with via hole in the middle of described weather strip 6 and be coated at external compression cover 41, pitch hemp cut is built at the part shrinkage joint 9 outside described weather strip 6; The outward flange of described weather strip 6 seals with shrinkage joint 9 and contacts, and via hole is coated at external compression cover 41 and seals, described weather strip 6 is for cutting off the contact of pitch hemp cut and external reinforcing plate for car, and what ensure in groove 3 is clean, avoids pitch hemp cut etc. to the interference of described bindiny mechanism and drag reduction mechanism; And pitch hemp cut self has certain elasticity to coordinate the wide change in shrinkage joint 9 and to reinforce external compression cover 41 and anchor pole 2.
In 8 the present embodiment, the opening's edge place at described lattice girder outer wall shrinkage joint 9 arranges and is fixedly installed a pair holder 7, described holder 7 is arranged at the both sides at shrinkage joint 9 respectively, described holder 7 is vertically arranged with through hole along lattice girder, described pass through in be provided with the bending resistance bar 8 be in axial sliding connection with holder 7; Holder 7 is fixedly installed with on lattice girder, by one-body molded with lattice girder or arrange groove 3 and build formation on lattice girder, by the cooperation of holder 7 and bending resistance bar 8, the bending resistance square ability of lattice girder is significantly improved, and manufacture craft is simple, easy to operate, with low cost, successful.
In 9 the present embodiment, described weather strip 6 is elastic rubber strip; Adopt rubber strip to have waterproof, airtight and that the life-span is long advantage, and the via diameter that elastic rubber strip is offered is less than the outer diameter pressing cover, via hole is coated at the outer cover that presses and realizes strict sealing.
In 10 the present embodiment, described through hole and bending resistance bar 8 are multiple and are all set up in parallel along the transverse direction of lattice girder; Can flexural strength be increased by arranging multiple bending resistance bar 8, ensureing the structural strength of lattice girder entirety, avoid slope body to reinforce and lost efficacy, ensure the structural strength of slope surface.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a side slope lattice beam shrinkage joint bending resistance square stiffening device, it is characterized in that: comprise rectangular shape intensive aspect and parallel across shrinkage joint anchor pole, the two side at described shrinkage joint all forms along longitudinal indent of lattice girder the groove being used for clamping intensive aspect, and described intensive aspect is fixedly connected with anchor pole and is provided with flexible gap between the end of intensive aspect and the bottom land of groove and between anchor pole and two side, shrinkage joint; Described intensive aspect is two pieces and is set up in parallel along shrinkage joint depth direction, also comprises and is arranged at intensive aspect surface for the drag reduction mechanism that reduces lattice girder longitudinal resistance and the bindiny mechanism for increasing bonding strength between intensive aspect be arranged between two intensive aspects.
2. side slope lattice beam shrinkage joint bending resistance square stiffening device according to claim 1, it is characterized in that: described drag reduction mechanism comprises the drag reduction part being arranged at intensive aspect surface, described drag reduction part be cylindrical and radial can deformation roll bar, described in roll bar and be multiple and longitudinal direction along intensive aspect is set up in parallel.
3. side slope lattice beam shrinkage joint bending resistance square stiffening device according to claim 2, it is characterized in that: described intensive aspect surface is horizontally arranged with cross section and is arc and for installing the groove rolling bar, the opening's edge width of described groove and the degree of depth are all less than the diameter rolling sliver transvers section.
4. side slope lattice beam shrinkage joint bending resistance square stiffening device according to claim 1, it is characterized in that: described intensive aspect at least comprises the outer reinforcement and interior intensive aspect that arrange along shrinkage joint depth direction ecto-entad, described syndeton comprises the external compression cover be slidably connected with anchor pole, interior clamping sleeve and for external compression to be overlapped and interior clamping sleeve is pressed in outer reinforcement and interior intensive aspect driven unit respectively, and described external compression cover is parallel with interior intensive aspect surface with outer reinforcement respectively with the inner face of interior clamping sleeve.
5. side slope lattice beam shrinkage joint bending resistance square stiffening device according to claim 4, is characterized in that: described driven unit comprises drive sleeve, outer drive nut, interior drive nut and locking nut; Described drive sleeve is slidably connected with anchor pole and inwall is connected with the outer wall thread of interior drive nut, described interior drive nut is by drive sleeve rotary actuation and press on interior clamping sleeve, described outer drive nut is coated at drive sleeve and is threaded with drive sleeve, rotate the external compression cover that outer drive nut makes outer drive nut press on to be coated at drive sleeve, described locking nut is connected with spiral thread on anchor bolt and to drive sleeve axial locking.
6. side slope lattice beam shrinkage joint bending resistance square stiffening device according to claim 4, is characterized in that: described drive sleeve outer end extends radially inwardly formation annular fixed seat, and described annular fixed seat and anchor pole are slidably connected.
7. side slope lattice beam shrinkage joint bending resistance square stiffening device according to claim 6, it is characterized in that: also comprise the weather strip cutting off shrinkage joint along the sealing of shrinkage joint depth direction, be provided with via hole and be coated at external compression cover in the middle of described weather strip, pitch hemp cut is built at the part shrinkage joint outside described weather strip.
8. side slope lattice beam shrinkage joint bending resistance square stiffening device according to claim 7, it is characterized in that: the opening's edge place at described lattice girder outer wall shrinkage joint arranges and is fixedly installed a pair holder, described holder is arranged at the both sides at shrinkage joint respectively, described holder is vertically arranged with through hole along lattice girder, described pass through in be provided with the bending resistance bar be in axial sliding connection with holder.
9. side slope lattice beam shrinkage joint bending resistance square stiffening device according to claim 8, is characterized in that: described weather strip is elastic rubber strip.
10. side slope lattice beam shrinkage joint bending resistance square stiffening device according to claim 9, is characterized in that: described through hole and bending resistance bar are multiple and are all set up in parallel along the transverse direction of lattice girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232840.5A CN104805851B (en) | 2015-05-07 | 2015-05-07 | Side slope lattice beam expansion joint bending resistance square stiffening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232840.5A CN104805851B (en) | 2015-05-07 | 2015-05-07 | Side slope lattice beam expansion joint bending resistance square stiffening device |
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| Publication Number | Publication Date |
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| CN104805851A true CN104805851A (en) | 2015-07-29 |
| CN104805851B CN104805851B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510232840.5A Expired - Fee Related CN104805851B (en) | 2015-05-07 | 2015-05-07 | Side slope lattice beam expansion joint bending resistance square stiffening device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08109638A (en) * | 1994-10-08 | 1996-04-30 | Nisshoku Corp | Slope greening method |
| KR20040027840A (en) * | 2003-07-08 | 2004-04-01 | 이재경 | Process for constructing retaining walls diversely |
| CN2811383Y (en) * | 2005-06-02 | 2006-08-30 | 杨宪奎 | Invisible bridge expansion device |
| KR101025260B1 (en) * | 2010-11-08 | 2011-03-30 | 이규철 | Slope stabilization method which uses prefabricated shore protection block and coir mat |
| CN103205976A (en) * | 2013-04-26 | 2013-07-17 | 西南交通大学 | Multistage frame beam slope protection structure with self-adjustable slope body pressure |
| CN203639816U (en) * | 2014-01-02 | 2014-06-11 | 黑龙江工程学院 | Novel bridge expansion joint structure |
| CN203768802U (en) * | 2014-04-01 | 2014-08-13 | 苏玉明 | Highway bridge expansion joint device |
-
2015
- 2015-05-07 CN CN201510232840.5A patent/CN104805851B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08109638A (en) * | 1994-10-08 | 1996-04-30 | Nisshoku Corp | Slope greening method |
| KR20040027840A (en) * | 2003-07-08 | 2004-04-01 | 이재경 | Process for constructing retaining walls diversely |
| CN2811383Y (en) * | 2005-06-02 | 2006-08-30 | 杨宪奎 | Invisible bridge expansion device |
| KR101025260B1 (en) * | 2010-11-08 | 2011-03-30 | 이규철 | Slope stabilization method which uses prefabricated shore protection block and coir mat |
| CN103205976A (en) * | 2013-04-26 | 2013-07-17 | 西南交通大学 | Multistage frame beam slope protection structure with self-adjustable slope body pressure |
| CN203639816U (en) * | 2014-01-02 | 2014-06-11 | 黑龙江工程学院 | Novel bridge expansion joint structure |
| CN203768802U (en) * | 2014-04-01 | 2014-08-13 | 苏玉明 | Highway bridge expansion joint device |
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| Publication number | Publication date |
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| CN104805851B (en) | 2016-08-24 |
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Granted publication date: 20160824 Termination date: 20190507 |