CN104847016A - Suspending transfer layer of stayed cable beam - Google Patents

Suspending transfer layer of stayed cable beam Download PDF

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Publication number
CN104847016A
CN104847016A CN201510255835.6A CN201510255835A CN104847016A CN 104847016 A CN104847016 A CN 104847016A CN 201510255835 A CN201510255835 A CN 201510255835A CN 104847016 A CN104847016 A CN 104847016A
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conversion layer
drag
line
suspension cable
hangs
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CN201510255835.6A
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刘坤
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Abstract

The invention discloses a suspending transfer layer of a stayed cable beam. Every member of the suspending transfer layer is combined mutually in a building structure to bear the load of an upper floor and form a function of a transfer structure; the suspending transfer layer can be applied to the design of the building transfer layer; in the transfer layer, a middle framework pillar (9) is cut off at the bottom of the pillar, and a stayed cable (6) crosses through an arc sleeve on a steering gear (7) to hang up a middle framework pillar (9); the middle framework pillar (9) hangs a beam slab at the lower layer through the steering gear, the middle framework pillar (9), the stayed cable (6) and a big beam (4) are formed to be a structure which is similar to a beam string structure; through an end anchor or an abutting tensioning device, the stayed cable tensions and adjusts the inner force of the stayed cable; according to the suspending transfer layer of the stayed cable beam, the layer rigidity of the transfer layer is smaller; therefore, the anti-seismic property of the building transfer structure with the technology is good.

Description

Suspension cable beam hangs conversion layer
Technical field:
The present invention relates to a kind of designing technique of building Large Span Transition Floor, by the building conversion layer of this technical design, the reinforcing bar of building frame construction and the use amount of concrete material can be reduced, alleviate the deadweight of building structure, simultaneously because the stiffness layer of transformational structure is little, adopt the building conversion layer structure of this technical design to have good anti-seismic performance, we claim this technology to be that suspension cable beam hangs conversion layer, belong to design of building structures technical field.
Background technology:
Along with expanding economy, increasing architectural design because the needs of function, and in design of building structures, is designed with conversion layer structure.Current building transferred floor design generally adopts technology to have: prestressing force beam-type transition layer, Thick Plate Transfer Story, box conversion layer, arcuately conversion layer, truss conversion layer.These existing transferred floor design technology exist or because cost is high, construction is inconvenient, or the shortcoming such as building structure aseismatic performance is bad because conversion layer stiffness layer is large, but suspension cable beam hangs transferred floor design technology well solves these problems, its structure has from heavy and light, conversion layer stiffness layer is little, structural element size is little, reinforcing bar and the advantage such as concrete material use amount is few, drag-line facilitates stretch-draw, building transformational structure anti-seismic performance with this technology is good.
Summary of the invention:
In order to solve numerous shortcomings that existing building transformational structure technology exists, main manifestations is building structure because stiffness layer sudden change and poor seismic behavior, building structural element size are large, building transformational structure construction costs is high etc., the present invention proposes a kind of new Large Span Transition Floor designing technique, we are referred to as suspension cable beam and hang conversion layer.This transferred floor design technology can not only realize the design of building Large Span Transition Floor easily, and have easy construction, building structure aseismatic performance is good simultaneously, and construction costs is low waits many merits.
The technical solution adopted for the present invention to solve the technical problems is: a kind of suspension cable beam hangs conversion layer, described suspension cable beam hangs conversion layer and comprises ground tackle, backing plate, steering gear, drag-line, docking tensioner, frame construction beam column component, described suspension cable beam hangs in conversion layer concrete pouring construction process, pre-buried upper steering gear, by the time when described suspension cable beam suspension conversion layer concrete reaches the design strength of cable tension, by described stay cable end ground tackle or docking tensioner, stretch-draw adjustment is carried out to drag-line internal force, described drag-line lifts at the bottom of the post of middle boxes trestle through the arc sleeve in steering gear, middle boxes trestle is hung up by the beam slab of steering gear by lower floor again, middle boxes trestle and drag-line and crossbeam form a kind of structure being similar to beam string, according to the difference of span, suspension cable beam hangs conversion layer and comprises two across suspension cable beam suspension conversion layer and three across the design of suspension cable beam suspension conversion layer two kinds, according to the difference that drag-line is arranged, suspension cable beam hangs conversion layer and comprises uniaxially guy system and biaxially guy system two kinds layout, according to the difference of the conversion layer number of plies, suspension cable beam hangs conversion layer and comprises single-layer type suspension cable beam suspension conversion layer and wear laminar suspension cable beam suspension conversion layer, according to the difference of cable tension mode, drag-line comprises end stretch-draw and docking stretch-draw two kinds of stretching modes.It is a kind of building Large Span Transition Floor designing technique newly that described suspension cable beam hangs conversion layer technology, less than the stiffness layer of the transferred floor design technology of routine, and anti-seismic performance is better, constructs more convenient.
The invention has the beneficial effects as follows: the design that can realize to light and flexible building Large Span Transition Floor, adopt the anti-seismic performance of the building structure of suspension cable beam suspension conversion layer good, building structural element size is little, and the construction costs of transformational structure is low, easy construction.
On the basis of technique scheme, the present invention makes following supplementing:
The present invention proposes a kind of suspension cable beam and hangs conversion layer, hang in conversion layer at suspension cable beam, crossbeam and middle boxes trestle and drag-line form a kind of transformational structure being similar to beam string, and suspension cable beam hangs conversion layer and utilizes external prestressing steels and beam string principle to realize the design of Large Span Transition Floor.Suspension cable beam hang conversion layer be applied to building transferred floor design, according to the difference of conversion layer span, comprise two across with three across two kinds of designs, when employing two across design time, two is equal across span, when employing three across design time, two end bay spans are equal, according to the difference that drag-line is arranged, be divided into uniaxially guy system and biaxially guy system, uniaxially guy system adopts steering gear uniaxially, biaxially guy system adopts biaxially steering gear, drag-line is external prestressing steels, drag-line distribution is arranged in the vertical plane of axis, drag-line through the arc sleeve of steering gear sling middle boxes trestle post at the bottom of, hung the floor beam slab of lower floor again by the suspension reinforcing bar in steering gear at the bottom of middle boxes trestle post, because the size hanging reinforcing bar is little, its horizontal lateral deformation stiffness is little, so the transformational structure of the horizontal comparison ratio of rigidity routine of whole conversion layer structure is little, because drag-line is distributed in the vertical plane of conversion layer axis, the feature of conversion layer structure is hung according to suspension cable beam, hole of opening the door can be hung in conversion layer structure at suspension cable beam.
Hang in conversion layer at described suspension cable beam, crossbeam is the continuous beam being applied precompression by drag-line.According to the difference of conversion layer span, comprise two across with three across two kinds of designs, when employing two across design time, two is equal across span, because conversion layer is symmetrical, so drag-line can realize the counteracting balance of own level component, and then only axial pressure design is realized to middle frame column, when employing three is across design, two end bay spans are equal, intermediate span can set according to actual needs, due to the post bottom at middle boxes trestle, drag-line has a horizontal component of failing to offset, in order to protect middle boxes trestle, one Vierendeel girder is designed to bear the horizontal component of drag-line between needing at the bottom of the post of two middle boxes trestles, this road Vierendeel girder is called hanging beam, therefore the inner place of hanging beam offers the duct of the drag-line that shuttles back and forth, the soffit of hanging beam is concordant with the post bottom surface of middle boxes trestle, a distance gap is had between the soffit of hanging beam and the plate face of lower floor laminate.Hang in conversion layer structure at suspension cable beam, drag-line is external prestressing steels, through the arc sleeve of middle boxes trestle lower end, to be sling middle boxes trestle, and middle boxes trestle has hung the beam slab of lower floor by steering gear by steering gear
In a preferred embodiment of the present invention, the steering gear that suspension cable beam hangs conversion layer adopts high-strength weldable metal material to make, steering gear there is arc sleeve, arc sleeve adopts the metal material of high strength and low friction to make, linear according to drag-line, make corresponding arc-shaped bend shape, steering gear there are from top to bottom three steel plates, steel plate at the bottom of post respectively, beam upper steel plate, supporting plate, steel plate at the bottom of post exempts from the comminuted destruction in local for the protection of the post base concrete of middle boxes trestle under earthquake motion effect, beam upper steel plate exempts from the comminuted destruction in local for the protection of girder connection Surface layer's concrete under earthquake motion effect, steel plate at the bottom of post and between beam upper steel plate for hang reinforcing bar, the length of suspension reinforcing bar equals the distance gap between middle boxes trestle post bottom surface and lower floor's floor plate face, by hanging the cross sectional area of reinforcing bar, the length of shape of cross section and suspension reinforcing bar controls the horizontal lateral deformation stiffness hanging reinforcing bar, the size of horizontal shear is distributed with this endurance and stiffness, by hanging the such design of reinforcing bar, the stiffness layer that suspension cable beam hangs the conversion layer of the story rigidity ratio routine of conversion layer is much little, because the stiffness layer that suspension cable beam hangs conversion layer diminishes, therefore the building structure aseismatic performance with suspension cable beam suspension conversion layer is better, muscle is hung in beam between beam upper steel plate and supporting plate, the beam slab of lower floor is hung up by the towing force of hanging anchored force between muscle and concrete and supporting plate in beam by steering gear, supporting plate bottom surface is concordant with the soffit of lower floor's floor.
In a preferred embodiment of the present invention, drag-line is external prestressing steels, the framework beam-ends at drag-line two ends has carried out haunch design, backing plate is embedded in the frame joint place at drag-line two ends, drag-line pulling force is divided into the component of level and vertical both direction by backing plate, apply axial compression to crossbeam and frame column respectively, crossbeam and frame column carry out sectional dimension and the Reinforcement Design of component again according to suffered power size.Ground tackle is post stretching ground tackle, the backing plate of ground tackle is embedded in concrete beam end, also frame construction Nodes is, drag-line adopts end stretch-draw or docking stretch-draw to regulate, drag-line adopts post-tensioned construction technology, the stretch-draw being realized drag-line pulling force by the post stretching ground tackle of stay cable end or the docking tensioner of middle is regulated, and the ground tackle of stay cable end is embedded in the Nodes of frame construction.
In a preferred embodiment of the present invention, described suspension cable beam hangs the difference that conversion layer is arranged according to drag-line, be divided into uniaxially guy system and biaxially guy system, so-called uniaxially guy system is the conversion layer only arranging drag-line at an axis direction, so-called biaxially guy system refers to the conversion layer all arranging drag-line at two orthogonal axis directions, and drag-line is arranged in the vertical plane of axis.
In a preferred embodiment of the present invention, hang in conversion layer three across suspension cable beam, two end bay spans are equal, the length of middle span can set arbitrarily, two middle boxes trestle lower ends are connected with hanging beam, when constructing, hanging beam and middle boxes trestle together pouring construction, the bottom surface of hanging beam is concordant with middle boxes trestle bottom surface, a distance gap is had between the bottom surface of hanging beam and the plate face of lower floor's floor, this distance gap equals the length hanging reinforcing bar, hanging beam inside offers the duct of the drag-line that shuttles back and forth, duct is positioned at the centre of form place of hanging beam cross section, the horizontal component that hanging beam is formed in middle boxes trestle lower end for bearing drag-line, middle boxes trestle bears the vertical force component that drag-line is formed in middle boxes trestle lower end.
In a preferred embodiment of the present invention, according to the difference of the conversion layer number of plies, suspension cable beam hangs conversion layer and comprises single-layer type suspension cable beam suspension conversion layer and wear laminar suspension cable beam suspension conversion layer, Fig. 1 and Fig. 2 is single-layer type suspension cable beam and hangs conversion layer, if by Fig. 1 drag-line both ends to bringing Forward, then hang conversion layer for wearing laminar suspension cable beam, by by drag-line two-end-point on the whole in-migration realize suspension cable beam hang conversion layer wear laminar design, thus realize same transferred floor design with less drag-line pulling force, the passage of the drag-line that shuttles back and forth is offered by the Vierendeel girder correspondence of passing through.
In a preferred embodiment of the present invention; suspension cable beam hangs at the bottom of the post of the middle boxes trestle of conversion layer a distance gap with the surface of lower floor's floor; middle boxes trestle lower end is embedded with the arc sleeve of steering gear; middle boxes trestle four side all devises reinforced concrete support wall bracing reinforcement; for propping up the stressed of overfill protection central frame post; make middle boxes trestle stressed more stable; middle boxes trestle blocks at the bottom of post; thus form a concrete structure be separated with lower floor beam slab, then by steering gear, middle boxes trestle and lower floor's beam slab are coupled together.
In a preferred embodiment of the present invention, hang in conversion layer at suspension cable beam, according to the difference of cable tension mode, drag-line comprises end stretch-draw and docking stretch-draw two kinds of stretching modes, two kinds of stretching modes are post stretching tension construction technology, when adopting end stretch-draw, namely realize regulating the stretch-draw of drag-line pulling force by the post stretching ground tackle of end, when adopting docking stretch-draw, namely realize regulating the stretch-draw of drag-line pulling force by the docking tensioner on drag-line, every root drag-line has two dock tensioner.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described in more detail.
Fig. 1 two hangs conversion layer structure figure across suspension cable beam;
Fig. 2 three hangs conversion layer structure figure across suspension cable beam;
Fig. 3 is diverter structure figure;
Fig. 4 is biaxially steering gear stereogram
In figure, each label parts are respectively:
1. ground tackle, 2. backing plate, 3. frame column, 4. crossbeam, 5. reinforced concrete support wall, 6. drag-line, 7. steering gear, 8. Vierendeel girder, 9. middle boxes trestle, 10. dock tensioner.
11. ground tackles, 12. backing plates, 13. frame columns, 14. crossbeams, 15. reinforced concrete support walls, 16. drag-lines, 17. steering gears, 18. Vierendeel girders, 19. reinforced concrete support walls, 20. hanging beams, 21. steering gears, 22. gaps, 23. middle boxes trestles, 24. middle boxes trestles, 25. docking tensioners, 26. docking tensioners.
31. arc sleeves, steel plate at the bottom of 32. posts, 33. hang reinforcing bar, and 34. beam upper steel plates, hang muscle in 35. beams, 36. supporting plates.
41. arc sleeves, 42. arc sleeves, steel plate at the bottom of 43. posts, 44. beam upper steel plates, hang muscle in 45. beams, 46. supporting plates.
Detailed description of the invention
The parts of identical label are same parts, though title possibility is little, there is any discrepancy, do not affect the understanding of the present invention and technical scheme.
A kind of suspension cable beam hangs conversion layer, its each component be combined with each other in building structure, reach and can bear upper floor load, form a kind of effect of transformational structure, it can be used for the transferred floor design built, Fig. 1 uniaxially two hangs transferred floor design across suspension cable beam, and because conversion layer is symmetrical, the horizontal component of drag-line can be cancelled out each other.In conversion layer, middle boxes trestle (9) is blocked at the bottom of post, middle boxes trestle (9) lifts through the arc sleeve in steering gear (7) by drag-line (6), the beam slab of lower floor is hung up by steering gear (7) by middle boxes trestle (9), middle boxes trestle (9) and drag-line (6) and crossbeam (4) form a kind of structure being similar to beam string, and drag-line carries out stretch-draw adjustment by end anchorage or docking tensioner to drag-line internal force.Stressed in order to protect-ing frame structure node, the framework beam-ends at drag-line two ends adopts haunch design, as depicted in figs. 1 and 2, in order to protect the stressed of middle boxes trestle, an overfill protection is carried out to all designing reinforced concrete support wall in middle boxes trestle four side, in order to reduce the stiffness layer of conversion layer, middle boxes trestle is designed to a kind of concrete structure be separated with lower floor beam slab, coupled together by the beam and slab structure of steering gear by middle boxes trestle and lower floor, when also arranging drag-line at Fig. 1 and the perpendicular axis direction of drag-line, so such design is called that biaxially suspension cable beam hangs conversion layer.
In order to meet larger span, found out three and hung transferred floor design technology across suspension cable beam, as shown in Figure 2, wherein two end bay spans are equal, and its structural mechanics principle is similar to Fig. 1.
When suspension cable beam hangs conversion layer construction, first frame shuttering, pre-buried upper steering gear, then the beam and slab structure of conversion layer lower floor is built, at the bottom of post, between steel plate and beam upper steel plate, temporarily lay cushion block support the concrete construction of middle boxes trestle, when the frame joint at drag-line two ends of constructing, pre-buried upper padding plate, the arc sleeve of drag-line through steering gear is also arranged in the ground tackle at two ends respectively, until crossbeam concreting and when forming stretch-draw design strength, drag-line carries out stretch-draw adjustment by end anchorage or docking tensioner to drag-line internal force, when layer construction to be converted is complete, remove cushion block that steering gear temporarily lays and the vertical template of frame, at this time will there is small sinking in the beam slab of lower floor, so hang in the normal use procedure of conversion layer at suspension cable beam, the physical length hanging reinforcing bar equals original length and adds the length sum that tension stretches because being subject to lower floor's beam slab weight, but it is very little owing to hanging reinforcing bar tension tensile elongation, so in normal use procedure, the length hanging reinforcing bar equals its original length substantially.
The above; be only the specific embodiment of the present invention; protection scope of the present invention is not limited thereto; any those of ordinary skill in the art completely can in the scope not departing from the technology of the present invention thought; the change can expected without performing creative labour or replacement; all should be encompassed within protection scope of the present invention, therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.

Claims (10)

1. a suspension cable beam hangs conversion layer, described suspension cable beam hangs conversion layer and comprises ground tackle, backing plate, steering gear, drag-line, docking tensioner, frame construction beam column component, it is characterized in that: described suspension cable beam hangs in conversion layer concrete pouring construction process, pre-buried upper steering gear, by the time when described suspension cable beam suspension conversion layer concrete reaches the design strength of cable tension, by described stay cable end ground tackle or docking tensioner, stretch-draw adjustment is carried out to drag-line internal force, described drag-line lifts at the bottom of the post of middle boxes trestle through the arc sleeve in steering gear, middle boxes trestle is hung up by the beam slab of steering gear by lower floor again, middle boxes trestle and drag-line and crossbeam form a kind of structure being similar to beam string, according to the difference of span, suspension cable beam hangs conversion layer and comprises two across suspension cable beam suspension conversion layer and three across the design of suspension cable beam suspension conversion layer two kinds, according to the difference that drag-line is arranged, suspension cable beam hangs conversion layer and comprises uniaxially guy system and biaxially guy system two kinds layout, according to the difference of the conversion layer number of plies, suspension cable beam hangs conversion layer and comprises single-layer type suspension cable beam suspension conversion layer and wear laminar suspension cable beam suspension conversion layer, according to the difference of cable tension mode, drag-line comprises end stretch-draw and docking stretch-draw two kinds of stretching modes.
2. suspension cable beam according to claim 1 hangs conversion layer, it is characterized in that: hang in conversion layer at described suspension cable beam, crossbeam and middle boxes trestle and drag-line form a kind of transformational structure being similar to beam string, and suspension cable beam hangs conversion layer and utilizes external prestressing steels and beam string principle to realize the design of Large Span Transition Floor.
3. suspension cable beam according to claim 1 hangs conversion layer, it is characterized in that: described suspension cable beam hangs conversion layer and is applied to building transferred floor design, according to the difference of conversion layer span, comprise two across with three across two kinds of designs, when employing two is across design, two is equal across span, and when employing three is across design, two end bay spans are equal; According to the difference that drag-line is arranged, be divided into uniaxially guy system and biaxially guy system, drag-line is external prestressing steels, drag-line distribution is arranged in the vertical plane of axis, drag-line through the arc sleeve of steering gear sling middle boxes trestle post at the bottom of, hung the floor beam slab of lower floor at the bottom of middle boxes trestle post again by the suspension reinforcing bar in steering gear.
4. suspension cable beam according to claim 1 hangs conversion layer, it is characterized in that: described suspension cable beam hangs at the bottom of the post of the middle boxes trestle of conversion layer a distance gap with the surface of lower floor's floor, middle boxes trestle lower end is embedded with the arc sleeve of steering gear, middle boxes trestle four side all devises reinforced concrete support wall bracing reinforcement, middle boxes trestle blocks at the bottom of post, thus form a concrete structure be separated with lower floor beam slab, then by steering gear, middle boxes trestle and lower floor's beam slab are coupled together.
5. suspension cable beam according to claim 1 hangs conversion layer, it is characterized in that: the framework beam-ends at described drag-line two ends has carried out haunch design, backing plate is embedded in the frame joint place at drag-line two ends, drag-line pulling force is divided into the component of level and vertical both direction by backing plate, applies axial compression respectively to crossbeam and frame column.
6. suspension cable beam according to claim 1 hangs conversion layer, it is characterized in that: the steering gear that described suspension cable beam hangs conversion layer adopts welding metal material to make, steering gear there is arc sleeve, linear according to drag-line, make corresponding arc-shaped bend shape, steering gear there are from top to bottom three steel plates, steel plate at the bottom of post respectively, beam upper steel plate, supporting plate, steel plate at the bottom of post and between beam upper steel plate for hang reinforcing bar, the length of suspension reinforcing bar equals the distance gap between middle boxes trestle post bottom surface and lower floor's floor plate face, by hanging the cross sectional area of reinforcing bar, the length of shape of cross section and suspension reinforcing bar controls the horizontal lateral deformation stiffness hanging reinforcing bar, muscle is hung in beam between beam upper steel plate and supporting plate, the beam slab of lower floor is hung up by the towing force of hanging anchored force between muscle and concrete and supporting plate in beam by steering gear, supporting plate bottom surface is concordant with the soffit of lower floor's floor.
7. suspension cable beam according to claim 1 hangs conversion layer, it is characterized in that: described drag-line adopts post-tensioned construction technology, the stretch-draw being realized drag-line pulling force by the post stretching ground tackle of stay cable end or the docking tensioner of middle is regulated, and the ground tackle of stay cable end is embedded in the Nodes of frame construction.
8. suspension cable beam according to claim 1 hangs conversion layer, it is characterized in that: by by described drag-line two-end-point on the whole in-migration realize suspension cable beam hang conversion layer wear laminar design, thus realize same transferred floor design with less drag-line pulling force, the passage of the drag-line that shuttles back and forth is offered by the Vierendeel girder correspondence of passing through.
9. suspension cable beam according to claim 1 hangs conversion layer, it is characterized in that: hang in conversion layer described three across suspension cable beam, two end bay spans are equal, two middle boxes trestle lower ends are connected with hanging beam, the bottom surface of hanging beam is concordant with middle boxes trestle bottom surface, a distance gap is had between the bottom surface of hanging beam and the plate face of lower floor's floor, this distance gap equals the length hanging reinforcing bar, hanging beam inside offers the duct of the drag-line that shuttles back and forth, the horizontal component that hanging beam is formed in middle boxes trestle lower end for bearing drag-line, middle boxes trestle bears the vertical force component that drag-line is formed in middle boxes trestle lower end.
10. suspension cable beam according to claim 1 hangs conversion layer, it is characterized in that: hang in conversion layer at described suspension cable beam, according to the difference of cable tension mode, drag-line comprises end stretch-draw and docking stretch-draw two kinds of stretching modes, two kinds of stretching modes are post stretching tension construction technology, when adopting end stretch-draw, namely realize regulating the stretch-draw of drag-line pulling force by the post stretching ground tackle of end, when adopting docking stretch-draw, namely realize regulating the stretch-draw of drag-line pulling force by the docking tensioner on drag-line, every root drag-line has two dock tensioner.
CN201510255835.6A 2015-05-18 2015-05-18 Suspending transfer layer of stayed cable beam Withdrawn CN104847016A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105442722A (en) * 2015-11-03 2016-03-30 刘坤 Truss shock insulation transfer layer
CN105755960A (en) * 2016-03-14 2016-07-13 沈阳建筑大学 Method for preventing middle beam of T-shaped beam bridge from generating lateral bending deformation
CN109610301A (en) * 2019-01-29 2019-04-12 中铁二院工程集团有限责任公司 Nearly tomography bridge damping energy consumption three-dimensional limit metal damping unit and installation method
CN112359975A (en) * 2020-11-05 2021-02-12 中国十九冶集团有限公司 Installation method for preventing latticed shell from laterally moving

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105442722A (en) * 2015-11-03 2016-03-30 刘坤 Truss shock insulation transfer layer
CN105755960A (en) * 2016-03-14 2016-07-13 沈阳建筑大学 Method for preventing middle beam of T-shaped beam bridge from generating lateral bending deformation
CN105755960B (en) * 2016-03-14 2017-05-10 沈阳建筑大学 Method for preventing middle beam of T-shaped beam bridge from generating lateral bending deformation
CN109610301A (en) * 2019-01-29 2019-04-12 中铁二院工程集团有限责任公司 Nearly tomography bridge damping energy consumption three-dimensional limit metal damping unit and installation method
CN109610301B (en) * 2019-01-29 2023-08-04 中铁二院工程集团有限责任公司 Damping energy consumption three-way limiting metal damping device for near-fault bridge and installation method
CN112359975A (en) * 2020-11-05 2021-02-12 中国十九冶集团有限公司 Installation method for preventing latticed shell from laterally moving
CN112359975B (en) * 2020-11-05 2022-04-15 中国十九冶集团有限公司 Installation method for preventing latticed shell from laterally moving

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Application publication date: 20150819