CN212077971U - Prefabricated lattice beam - Google Patents
Prefabricated lattice beam Download PDFInfo
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- CN212077971U CN212077971U CN201921940938.6U CN201921940938U CN212077971U CN 212077971 U CN212077971 U CN 212077971U CN 201921940938 U CN201921940938 U CN 201921940938U CN 212077971 U CN212077971 U CN 212077971U
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- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 230000006378 damage Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model discloses a prefabricated lattice roof beam relates to lattice roof beam technical field, include: the viscous damper comprises a plurality of transverse prefabricated lattices, a plurality of vertical prefabricated lattices and a plurality of viscous dampers, wherein the transverse prefabricated lattices and the vertical prefabricated lattices are mutually crossed and embedded together; and the viscous dampers are respectively connected in series on the transverse prefabricated lattice and the vertical prefabricated lattice. The utility model discloses a viscous damper absorbs seismic energy and converts into heat energy, reaches the effect of dissipation vibration energy, reduces the seismic wave effect that prefabricated lattice beam received, can effectively prevent the deformation destruction of prefabricated lattice beam, has kept the integrality of lattice support system, has good antidetonation effect.
Description
Technical Field
The utility model relates to a lattice roof beam technical field, in particular to prefabricated lattice roof beam.
Background
The lattice reinforcing technology is particularly suitable for road side slopes or road landslides with steep slopes and even and hard slope rock-soil, and is mainly used for distributing the residual gliding force of the side slopes to anchor rods or anchor cables at lattice structure points and then transmitting the gliding force to a stable stratum through the anchor cables so as to enable the side slope bodies to be in a stable state.
The lattice beam has the advantages of flexible arrangement, various lattice forms, convenient section adjustment, close adhesion with a slope surface, capability of being in place along with the slope and the like, so the lattice beam is widely applied, but the existing lattice beam belongs to a rigid structure and has poor anti-seismic performance, and the lattice beam is easy to break during earthquake, thereby causing instability of the slope.
Disclosure of Invention
In view of this, the utility model aims at providing a prefabricated lattice girder for promote prefabricated lattice girder's shock resistance.
Based on the above-mentioned purpose, the utility model provides a pair of prefabricated lattice roof beam, include:
a plurality of transverse prefabricated lattices, a plurality of vertical prefabricated lattices, and a plurality of viscous dampers, wherein,
the plurality of transverse prefabricated lattices and the plurality of vertical prefabricated lattices are mutually crossed and embedded together;
and the viscous dampers are respectively connected in series on the transverse prefabricated lattice and the vertical prefabricated lattice.
Optionally, a plurality of first splicing points are arranged on the horizontal prefabricated lattice, a plurality of second splicing points are arranged on the vertical prefabricated lattice, the horizontal prefabricated lattice and the vertical prefabricated lattice are spliced together in a crossed manner through the first splicing points and the second splicing points, bolt holes are arranged at the splicing points, and the horizontal prefabricated lattice and the vertical prefabricated lattice are detachably connected together at the splicing points through the matching of bolts and the bolt holes.
Optionally, wherein a plurality of horizontal prefabricated lattice and a plurality of equal symmetry is provided with two sets of connecting plates on the vertical prefabricated lattice, the both ends of viscous damper pass through the bolt can dismantle the connection and be in two sets of between the connecting plate.
Optionally, a plurality of transverse prefabricated lattices are arranged between two adjacent transverse viscous dampers at intervals, and a plurality of vertical prefabricated lattices are arranged between two adjacent vertical viscous dampers at intervals.
Optionally, the lattice beam further includes an anchor cable, an anchor cable hole is formed at a cross-embedded position of the transverse prefabricated lattice and the vertical prefabricated lattice, and the anchor cable is arranged at the anchor cable hole.
Optionally, the anchor cable includes an anchor head, a tensioning member and a locator, the locator is disposed on the tensioning member, one end of the tensioning member passes through the anchor cable hole, and the anchor head is disposed at one end of the tensioning member close to the anchor cable hole.
Optionally, the tensioning member is a steel bar or a steel strand.
Optionally, the transverse prefabricated lattice and the vertical prefabricated lattice are both reinforced concrete structures.
Based on the same invention creation, the utility model also provides a construction method of prefabricated lattice beam, including:
step one, positioning: measuring alignment, flattening the slope, accurately determining the position and elevation of the lattice beam, and measuring the position of each anchor hole;
step two, drilling: drilling holes by adopting an impact drill or a rotary drill according to the hole positions, the hole diameters, the hole depths and the inclinations of the anchor cables specified by the construction drawing, and cleaning the holes by using high-pressure air after the holes are drilled to the required depth, so as to clean the residual waste soil on the inner wall and the root of the holes;
step three, anchor cable installation and grouting: the tensioning piece is inserted into a drilled hole straightly by means of a positioner, and after the tensioning piece is installed, grouting is performed into the hole by adopting a method combining gravity grouting and pressure grouting, so that the anchor cable cannot be knocked or shaken during grouting;
step four, mounting the lattice beam: prefabricating the transverse prefabricated lattice and the vertical prefabricated lattice, installing the transverse prefabricated lattice and the vertical prefabricated lattice, mutually embedding the crossed parts of the transverse prefabricated lattice and the vertical prefabricated lattice, fixing the crossed and embedded parts of the transverse prefabricated lattice and the vertical prefabricated lattice by using bolts, penetrating the fixed tensioning piece through the anchor cable holes reserved at the crossed and embedded parts of the lattices, and installing anchor heads;
step five, installing a viscous damper: fixing connecting plates at the end parts of the transverse prefabricated lattice and the vertical prefabricated lattice, and serially mounting two ends of a viscous damper on the two connecting plates of the transverse prefabricated lattice through bolts to finish the assembly of the transverse lattice; and two ends of the viscous damper are installed on two connecting plates of two vertical prefabricated lattices through bolts in series, so that the vertical lattice assembly is completed, and the anchor cable is welded and anchored.
Optionally, the tensioning member is inclined downwards and forms an included angle of 12-20 degrees with the horizontal plane.
This prefabricated lattice roof beam is when using, when prefabricated lattice roof beam is receiving the earthquake wave when assaulting, produce shear stress and shear displacement, it drives the viscous damper piston of concatenating on horizontal prefabricated lattice and vertical prefabricated lattice and produces relative displacement to cut the displacement, the viscous damper will absorb seismic energy and convert heat energy into, reach the effect of dissipation vibration energy, reduce the earthquake wave effect that prefabricated lattice roof beam received, can effectively prevent the deformation destruction of prefabricated lattice roof beam, the integrality of lattice support system has been kept, good antidetonation effect has.
Drawings
Fig. 1 is a schematic structural view of a prefabricated lattice beam according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a side cross-sectional view of the cross-jogging of the transverse preformed lattices and the vertical preformed lattices of FIG. 1;
FIG. 4 is a top cross-sectional view of a transverse prefabricated lattice according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a connection board according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
In order to achieve the purpose, the embodiment of the utility model provides a prefabricated lattice beam. As shown in fig. 1 to 5, a prefabricated lattice beam includes:
a plurality of transverse prefabricated lattices 1, a plurality of vertical prefabricated lattices 2 and a plurality of viscous dampers 3, wherein,
the plurality of transverse prefabricated lattices 1 and the plurality of vertical prefabricated lattices 2 are mutually crossed and embedded together;
the viscous dampers 3 are respectively connected in series to the transverse prefabricated lattice 1 and the vertical prefabricated lattice 2.
The utility model discloses an in the embodiment, viscous damper 3 can be a speed type attenuator, and its important spare part adopts the austenite stainless steel, and this kind of material corrosion resisting property is good, is applicable to abominable operational environment, and viscous damper 3 can be hydraulic pressure viscous damper 3, and 3 damping forces of hydraulic pressure viscous damper are big, and dynamic response time is short, is a vibration control device sensitive to speed response, is applicable to the impact that slows down the earthquake ripples to the stability of prefabricated lattice beam of guarantee.
This prefabricated lattice roof beam is when using, when prefabricated lattice roof beam is receiving the earthquake wave when assaulting, produce shear stress and shear displacement, it drives the viscous damper 3 of concatenating on horizontal prefabricated lattice 1 and vertical prefabricated lattice 2 to produce relative displacement to cut the displacement, produce relative displacement through viscous damper 3 piston, viscous damper 3 will absorb seismic energy and convert heat energy into, reach the effect of dissipation vibration energy, reduce the earthquake wave effect that prefabricated lattice roof beam received, can effectively prevent the deformation destruction of prefabricated lattice roof beam, the integrality of lattice support system has been kept, good antidetonation effect has.
The existing transverse lattice beams and vertical lattice beams are usually assembled directly in a jogged manner, but the assembly firmness is not high enough. For solving the problem the utility model discloses an in an embodiment, be equipped with a plurality of first jogged points 11 on the horizontal prefabricated lattice 1, be equipped with a plurality of second jogged points 21 on the vertical prefabricated lattice 2, horizontal prefabricated lattice 1 with vertical prefabricated lattice 2 passes through first jogged points 11 with second jogged points 21 cross-embedded together, cross jogged points department is equipped with bolt hole 4, through the bolt with bolt hole 4 cooperate with horizontal prefabricated lattice 1 with the cross jogged points department of vertical prefabricated lattice 2 can dismantle the connection together. The utility model discloses an among the embodiment, required bolt and nut all pass through anticorrosive treatment.
According to the above, the utility model discloses a detachable relation of connection between horizontal prefabricated lattice 1 and the vertical prefabricated lattice 2 for not only simple to operate between horizontal prefabricated lattice 1 and the vertical prefabricated lattice 2, when horizontal prefabricated lattice 1 or the vertical prefabricated lattice 2 appears damaging and need change, it is convenient to dismantle, make to change and restore the operation of lattice roof beam more high-efficient, the gomphosis department reinforces through the bolt simultaneously, the firmness that horizontal prefabricated lattice 1 and vertical prefabricated lattice 2 assembled together has been promoted.
The utility model discloses an in one embodiment, horizontal prefabricated lattice 1 can comprise the first joggle point 11 of a plurality of horizontal roof beam and a plurality of, and vertical prefabricated lattice 2 can comprise a plurality of vertical roof beam and a plurality of second joggle point 21, can pass through bolted connection's mode between the horizontal roof beam of a plurality of and between the vertical roof beam of a plurality of, and interconnect is in the same place, and it is more convenient when the horizontal roof beam and the vertical roof beam of a plurality of weak point make the transportation.
In an embodiment, a plurality of horizontal prefabricated lattices 1 and a plurality of vertical prefabricated lattices 2 are symmetrically provided with two groups of connecting plates 5, and two ends of the viscous damper 3 are detachably connected between the two groups of connecting plates 5 through bolts. Viscous damper 3 demountable installation's design for viscous damper 3 is simple to operate not only, and is convenient for maintain or update, and the operation is convenient more high-efficient when making viscous damper 3 restore.
Alternatively, the connecting plate 5 comprises a rectangular steel plate 51 and two triangular steel plates 52. Four bolt holes are formed in four corners of the rectangular bottom steel plate 51 and are used for being connected to the transverse prefabricated lattice 1 and the vertical prefabricated lattice 2; two triangle-shaped steel sheet 52 are isosceles triangle, and the long limit respectively with long limit of rectangle steel sheet 51 with welded mode fixed connection, triangle-shaped steel sheet 52 middle part sets up the bolt hole for connect viscous damper 3.
For more reasonable arrangement viscous damper 3 the utility model discloses an in the embodiment, two adjacent horizontal settings a plurality of in interval between the viscous damper 3 horizontal prefabricated lattice 1, two adjacent vertical settings a plurality of in interval between the viscous damper 3 vertical prefabricated lattice 2. This kind of arrangement can reduce viscous damper 3's use amount again when guaranteeing prefabricated lattice beam's antidetonation effect, reduces prefabricated lattice beam's production manufacturing cost.
In some embodiments, the lattice beam further comprises anchor cables, and the intersection joints of the transverse prefabricated lattices 1 and the vertical prefabricated lattices 2 are provided with anchor cable holes 61, and the anchor cables are arranged at the anchor cable holes 61. Wherein,
the anchor cable comprises an anchor head 62, a tension member 63 and a locator 64, wherein the locator 64 is arranged on the tension member 63, one end of the tension member 63 penetrates through the anchor cable hole 61, and the anchor head 62 is arranged at one end of the tension member 63 close to the anchor cable hole 61. Optionally, the tension member 63 is a steel bar or a steel strand.
During construction, a steel bar or a steel strand is fixedly placed in an anchor cable hole by using a positioner 64, the anchor cable is inclined downwards and forms an included angle of 12-20 degrees with the horizontal plane, after grouting is completed, the steel bar or the steel strand penetrates through the anchor cable hole 61 formed in the intersection and embedding point of the transverse prefabricated lattice 1 and the vertical prefabricated lattice 2, and finally an anchor head 62 is installed. The anchor cable is used for connecting the prefabricated lattice beam and the stable stratum and transmitting the residual sliding force, the soil pressure or the rock pressure of the slope body to the stable stratum.
In an embodiment of the present invention, the horizontal prefabricated lattice and the vertical prefabricated lattice are reinforced concrete structures. The reinforced concrete structure is beneficial to transportation and hoisting.
Based on the same invention creation, the utility model also provides a construction method of prefabricated lattice beam, including:
step one, positioning: measuring alignment, flattening the slope, accurately determining the position and elevation of the lattice beam, and measuring the position of each anchor hole;
step two, drilling: drilling holes by adopting an impact drill or a rotary drill according to the hole positions, the hole diameters, the hole depths and the inclinations of the anchor cables specified by the construction drawing, and cleaning the holes by using high-pressure air after the holes are drilled to the required depth, so as to clean the residual waste soil on the inner wall and the root of the holes;
step three, anchor cable installation and grouting: the tensioning piece is inserted into the drilled hole straightly by means of the positioner, and after the tensioning piece is installed, grouting is performed into the hole by adopting a method combining gravity grouting and pressure grouting, so that the anchor cable cannot be knocked or shaken during grouting;
step four, mounting the lattice beam: prefabricating the transverse prefabricated lattice and the vertical prefabricated lattice, installing the transverse prefabricated lattice and the vertical prefabricated lattice, mutually embedding the crossed parts of the transverse prefabricated lattice and the vertical prefabricated lattice, fixing the crossed and embedded parts of the transverse prefabricated lattice and the vertical prefabricated lattice by using bolts, penetrating the fixed tensioning piece through the anchor cable holes reserved at the crossed and embedded parts of the lattices, and installing anchor heads;
step five, installing a viscous damper: fixing connecting plates at the end parts of the transverse prefabricated lattice and the vertical prefabricated lattice, and serially mounting two ends of a viscous damper on the two connecting plates of the transverse prefabricated lattice through bolts to finish the assembly of the transverse lattice; and two ends of the viscous damper are installed on two connecting plates of two vertical prefabricated lattices through bolts in series, so that the vertical lattice assembly is completed, and the anchor cable is welded and anchored.
Optionally, the tensioning member is inclined downwards and forms an included angle of 12-20 degrees with the horizontal plane.
According to the steps, when the prefabricated lattice beam is applied, when the prefabricated lattice beam is impacted by seismic waves, shearing force and shearing displacement are generated, the shearing displacement drives the viscous dampers connected in series on the transverse prefabricated lattice and the vertical prefabricated lattice to generate relative displacement, relative movement is generated through the viscous damper pistons, the viscous dampers absorb the seismic energy and convert the seismic energy into heat energy, the effect of dissipating the vibration energy is achieved, the seismic wave effect on the prefabricated lattice beam is reduced, the deformation and the damage of the prefabricated lattice beam can be effectively prevented, the integrity of a lattice supporting system is kept, and the prefabricated lattice beam has a good anti-seismic effect.
Simultaneously the utility model discloses a detachable relation of connection between horizontal prefabricated lattice, vertical prefabricated lattice and the attenuator for not only simple to operate between horizontal prefabricated lattice and the vertical prefabricated lattice, when horizontal prefabricated lattice or vertical prefabricated lattice appear damaging need change, it is convenient when dismantling, consequently make when changing the restoration lattice roof beam the operation convenient more high-efficient.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. A prefabricated lattice beam, comprising: a plurality of transverse prefabricated lattices, a plurality of vertical prefabricated lattices, and a plurality of viscous dampers, wherein,
the plurality of transverse prefabricated lattices and the plurality of vertical prefabricated lattices are mutually crossed and embedded together;
and the viscous dampers are respectively connected in series on the transverse prefabricated lattice and the vertical prefabricated lattice.
2. A prefabricated lattice beam as claimed in claim 1, wherein said transverse prefabricated lattice has a plurality of first engagement points, said vertical prefabricated lattice has a plurality of second engagement points, said transverse prefabricated lattice and said vertical prefabricated lattice are engaged with each other at said first engagement points and said second engagement points, and said engagement points are provided with bolt holes, and said bolt holes are engaged with each other to detachably connect said transverse prefabricated lattice and said vertical prefabricated lattice at said engagement points.
3. A prefabricated lattice beam according to claim 1, wherein two sets of connecting plates are symmetrically arranged on each of a plurality of said transverse prefabricated lattices and a plurality of said vertical prefabricated lattices, and two ends of said viscous damper are detachably connected between the two sets of connecting plates by bolts.
4. A prefabricated lattice beam as claimed in claim 1, wherein a plurality of said transverse prefabricated lattices are spaced between two adjacent transversely arranged viscous dampers and a plurality of said vertical prefabricated lattices are spaced between two adjacent vertically arranged viscous dampers.
5. A prefabricated lattice beam as claimed in claim 1, further comprising anchor lines, wherein the cross-joints of said transverse prefabricated lattices and said vertical prefabricated lattices are provided with anchor line holes, and said anchor lines are provided at said anchor line holes.
6. A precast lattice beam as set forth in claim 5, wherein the anchor line includes an anchor head, a tension member and a retainer, the retainer being provided on the tension member, one end of the tension member passing through the anchor line hole, the anchor head being provided at an end of the tension member near the anchor line hole.
7. A prefabricated lattice beam according to claim 6 wherein said tension members are reinforcing steel or steel strands.
8. A prefabricated lattice beam according to claim 1, characterised in that said transverse prefabricated lattice and said vertical prefabricated lattice are both reinforced concrete structures.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921940938.6U CN212077971U (en) | 2019-11-11 | 2019-11-11 | Prefabricated lattice beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921940938.6U CN212077971U (en) | 2019-11-11 | 2019-11-11 | Prefabricated lattice beam |
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| CN212077971U true CN212077971U (en) | 2020-12-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820770A (en) * | 2019-11-11 | 2020-02-21 | 安徽工程大学 | Prefabricated lattice beam and construction method thereof |
| CN113944175A (en) * | 2021-10-28 | 2022-01-18 | 山东路达工程设计咨询有限公司 | Modular road bed side slope retaining structure |
-
2019
- 2019-11-11 CN CN201921940938.6U patent/CN212077971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820770A (en) * | 2019-11-11 | 2020-02-21 | 安徽工程大学 | Prefabricated lattice beam and construction method thereof |
| CN113944175A (en) * | 2021-10-28 | 2022-01-18 | 山东路达工程设计咨询有限公司 | Modular road bed side slope retaining structure |
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