CN205954497U - Large -span continuous beam bridge bridge pier in deep water mound top bracket pre -compaction construction structures - Google Patents
Large -span continuous beam bridge bridge pier in deep water mound top bracket pre -compaction construction structures Download PDFInfo
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- CN205954497U CN205954497U CN201620972437.6U CN201620972437U CN205954497U CN 205954497 U CN205954497 U CN 205954497U CN 201620972437 U CN201620972437 U CN 201620972437U CN 205954497 U CN205954497 U CN 205954497U
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Abstract
The utility model discloses a large -span continuous beam bridge bridge pier in deep water mound top bracket pre -compaction construction structures, including fixing mound top bracket on bridge pier in deep water, carry out the deformation monitoring devices that monitors to the deformation condition of mound top bracket carry out pre -compaction structure and the pre -pressing process of pre -compaction to mound top bracket in from top to bottom, pre -compaction structure level place in on the bracket of mound top, mound top bracket include fixed mounting the lower part bearing structure at bridge pier in deep water top with support the upper portion braced frame on the bearing structure of lower part, lower part bearing structure includes that two sets of symmetries lay the triangle bracket of both sides around the bridge pier in deep water top, it includes master control set and a plurality of displacement detection unit who is connected with master control set to warp monitoring devices. The utility model has the advantages of simple structure and reasonable design and the construction is simple and convenient, excellent in use effect, and the mound that adopts top bracket can simple and convenient, reliable fixed mounting in bridge pier in deep water dun ding to can accomplish mound top bracket pre -pressing process portably, fast.
Description
Technical field
This utility model belongs to technical field of bridge construction, especially relates to a kind of large-span continuous beam deep-water pier pier top
Bracket prepressing construction structure.
Background technology
At present, China railways bridge construction is in the fast development phase, using advanced design and construction technique, reaches section
Investment-saving, reduction of erection time are it is ensured that the target of safety is always the result that engineering circles are pursued.Wherein, in large span, deep-water bridge
Construction aspect, design theory, building technology and equipment aspect have reached or close to advanced international standard.For example in Nanning railway pivot
Knob increases newly in the grand bridge Construction of continuous beam of the new Yongning in two wires river in Guangxi river, and bridge main, across reaching 168m, is domestic current single-line railway bridge
Maximum span in beam.This bridge deepwater foundation construction security risk is high, and quality control difficulty is big；Especially carry out exposed under water
During the excavation of basement foundation, because bridge is against both wired, main pier is located in Yong Jiang (II grade of navigation channel of planning), and the depth of water reaches 18m,
Both wired (i.e. existing railway line) operation and river in Guangxi river Navigation in Navigable safety should be guaranteed, ensure construction period, quality, safety again
On the premise of, select rational construction technical schemes just particularly important.Meanwhile, the construction to bridge top continuous beam, needs to adopt
Merogenesis section constructing method, its cantilever construction will experience the mistake that "T"-shaped cantilever pouring sections (i.e. T structure cantilever beam section) forms girder
Journey.This bridge main span reaches 168m, arm length, and the process of system transform to be experienced, the internal force of girder and linear all can be with construction
Progress and be continually changing.Because beam body span is big, sections is many, has higher requirement to beam body alignment control, such as controls not
Good, not only affect the presentation quality of beam body, the prior operation that can affect beam body.
Although deepwater pier Double-Wall Steel Boxed Cofferdam foundation construction and large-span continuous beam construction have the construction of comparative maturity at home
Precedent, but include deep water intectate exposed bedrock, deepwater foundation construction under water, and with existing Business Line route distance
Only 30m, or relatively more rare, and also bridge main reaches the continuous beam cantilever casting construction of 168m across span, at home still very
Rare.Especially the beam section (hereinafter referred to as deep-water pier pier top beam section) being supported on deep-water pier in T structure cantilever beam section is entered
During row construction, difficulty of construction is very big.Deep-water pier pier top beam section is also referred to as 0# beam section, and it is the beam section constructed at first, this beam
Section is full bridge structure stress is the most complicated, difficulty of construction is maximum one section, generally carries out cast-in-place applying using bracket support template system
Work.But because above-mentioned deep-water pier pier top beam section is supported on deep-water pier, the difficulty of construction of pier top bracket is larger, simultaneously because of bridge
Beam main span span reaches 168m, thus the construction quality of deep-water pier pier top beam section is most important.Therefore, a kind of structure need to be designed
Simply, large-span continuous beam deep-water pier pier top bracket reasonable in design and that easy construction, using effect are good, can be easy, quick
It is fixedly installed in deep-water pier pier top, and stressed effect is good, be provided that firm support.And, for improving beam body alignment control
Effect, before pier top beam section is constructed, need to carry out precompressed to pier top bracket, it is to avoid pier top bracket deforms to pier top beam section
Impact.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, provide one kind greatly across
Degree continuous beam deep-water pier pier top bracket prepressing construction structure, its structure is simple, reasonable in design and easy construction, using effect
Good, the pier top bracket being adopted easy, reliable can be fixedly installed in deep-water pier pier top, and energy is easy, be rapidly completed pier top support
Frame pre-compaction process.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of large-span continuous beam deep water bridge
Pier pier top bracket prepressing construction structure it is characterised in that：Including the pier top bracket being fixed on deep-water pier, from top to bottom to institute
State the change that pier top bracket carries out in the prepressing structure of precompressed and pre-compaction process, the deformation of described pier top bracket being monitored
Shape monitoring device, described prepressing structure is placed horizontally on described pier top bracket；
Described pier top bracket includes being fixedly mounted on the bottom bracing structure at deep-water pier top and is supported in described bottom
Upper support framework in supporting construction, described upper support framework is in horizontal layout；
Described bottom bracing structure includes two groups of triangle brackets being symmetrically laid in both sides before and after deep-water pier top, often
Organize described triangle bracket and all include three triangle brackets laid from left to right along direction across bridge, three described triangle brackets
All along vertical bridge to laying；Described deep-water pier by stand in water and to the vertical steel that is supported of construction large-span continuous beam
Reinforced concrete bridge pier, described deep-water pier includes pier shaft and the pier cap being laid on described pier shaft, constructed large-span continuous beam
For In Reinforced Concrete Box Girder, the beam section being supported in constructed large-span continuous beam on deep-water pier is pier top beam section；Three institutes
State triangle bracket all in vertically to laying, three described triangle brackets include a middle part bracket and two be symmetrically laid in
The side bracket of the described middle part bracket left and right sides, described middle part bracket is located at the underface of described pier top beam section；Described in each
Triangle bracket all include one along vertical bridge to the crossbeam laid, be supported in medial support beam and company below cross rail inner together
It is connected to the skewed horizontal load beam between crossbeam and medial support beam, the inner of described crossbeam is fixed on described pier cap, described oblique
The upper end of support beam is supported in below the outer end of crossbeam, and the bottom of described skewed horizontal load beam is all fixing with the bottom of medial support beam
On described pier shaft, described crossbeam, medial support beam and skewed horizontal load beam are shaped steel；
Described upper support framework is included by two groups of horizontal strokes being symmetrically laid in above both sides before and after described bottom bracing structure
Bracing structure and two longitudinal directions being symmetrically laid in above the described bracing structure left and right sides to support beam composition
Supporting construction, described in two groups, cross-brace beam is laid in same level, and described in every group, cross-brace beam all includes multiple tracks edge
Vertical bridge is laid to the cross-brace beam being laid in from front to back in same level, described cross-brace beam along direction across bridge,
Described in every group, cross-brace beam is all supported on triangle bracket described in a group；Two described longitudinal support structure are laid in same
On horizontal plane and the two is laid in below the top board left and right sides of described pier top beam section respectively；Each described longitudinal support structure is equal
It is laid in the outside longitudinal support beam in same level, described outside longitudinal support beam including multiple tracks along direction across bridge from left to right
Along vertical bridge to being laid；Described cross-brace beam and outside longitudinal support beam are shaped steel；Two described longitudinal support structure
Composition longitudinal bracing system；
Described prepressing structure includes two cross-brace being symmetrically laid in above both sides before and after described longitudinal bracing system
Plate and two pressure structures being respectively placed on two described cross-brace plates, described cross-brace plate is in horizontal layout, and two
Individual described cross-brace plate is laid in same level；Two described pressure structures are symmetrically laid, each described pressurization knot
Structure all includes multiple sand pockets piled up on cross-brace plate；Two described cross-brace plates laterally prop up described in being located at two groups respectively
Above support beam；
Described deformation monitoring device includes master control set, outside longitudinal bracing described in cross-brace beam described in per pass and per pass
Displacement detecting unit is laid with beam, all displacement detecting unit that described pier top bracket is laid are all with master control set even
Connect.
Above-mentioned large-span continuous beam deep-water pier pier top bracket prepressing construction structure, is characterized in that：Described cross-brace plate
For plank.
Above-mentioned large-span continuous beam deep-water pier pier top bracket prepressing construction structure, is characterized in that：Laterally prop up described in per pass
All it is laid with multiple described displacement detecting unit from front to back on outside longitudinal support beam described in support beam and per pass.
Above-mentioned large-span continuous beam deep-water pier pier top bracket prepressing construction structure, is characterized in that：Two described sidepiece supports
Frame is located at below two webs of described pier top beam section respectively.
Above-mentioned large-span continuous beam deep-water pier pier top bracket prepressing construction structure, is characterized in that：Two described longitudinal directions are propped up
Support structure is laid in below the left and right sides wing plate of described top board respectively.
Above-mentioned large-span continuous beam deep-water pier pier top bracket prepressing construction structure, is characterized in that：Described longitudinal bracing knot
Longitudinal support beam composition outside-supporting structure in outside described in multiple tracks in structure, described longitudinal support structure also includes before and after's twice pair
Claim the inner side longitudinal support beam laid, described in twice, inner side longitudinal support beam is respectively positioned on inside described outside-supporting structure, twice
All along vertical bridge to laying and the two is respectively positioned on same straight line described inner side longitudinal support beam, inner side longitudinal support beam described in twice
It is respectively supported on cross-brace beam described in two groups.
Above-mentioned large-span continuous beam deep-water pier pier top bracket prepressing construction structure, is characterized in that：Laterally prop up described in every group
Support beam all includes cross-brace beam described in twice, and each described longitudinal support structure all includes outside longitudinal bracing described in twice
Beam.
Above-mentioned large-span continuous beam deep-water pier pier top bracket prepressing construction structure, is characterized in that：Described skewed horizontal load beam
The bottom of bottom and medial support beam be fastenedly connected and be integrated, the bottom of described skewed horizontal load beam and the bottom of medial support beam
All it is installed on described pier shaft.
Above-mentioned large-span continuous beam deep-water pier pier top bracket prepressing construction structure, is characterized in that：Pre-buried on described pier cap
Have six groups of fining twisted steels that the crossbeam in triangle bracket is fixed, described crossbeam inner with described fining twisted steel it
Between be fixedly connected by clamp nut；Crossbeam the inner described in per pass is all fixed on described by fining twisted steel described in a group
On pier cap.
Above-mentioned large-span continuous beam deep-water pier pier top bracket prepressing construction structure, is characterized in that：Finish rolling spiral shell described in every group
Stricture of vagina steel all includes fining twisted steel described in multiple tracks, and described fining twisted steel is along vertical bridge to being laid.
This utility model compared with prior art has advantages below：
1st, structure is simple, reasonable in design and processing and fabricating and dismounting easy, put into construction cost relatively low.
2nd, the pier top carrier structure being adopted is simple, reasonable in design and processing and fabricating and dismounting is easy, using effect is good, and three
Angle bracket fixation is easy and fixed, firm, and the crossbeam the inner in triangle bracket is all solid by one group of fining twisted steel
It is scheduled on pier cap, in triangle bracket, the bottom of skewed horizontal load beam and the bottom of medial support beam are all installed on pier shaft.And,
This pier top bracket easy construction, using effect are good and practical value is high, first to six triangle brackets in bottom bracing structure
It is fixed respectively, then installation is fixed respectively to two groups of cross-brace beams in upper support framework, finally top is propped up
Two longitudinal support structure in support frame frame are fixed to be installed, and the paired bed die of two groups of cross-brace beam groups is supported
Supporting construction, two longitudinal support structure are respectively the supporting construction that two side forms are supported, can easy, quick fixing peace
It is loaded on deep-water pier pier top, reasonable stress, support effect is good, easy construction and saving of work and time.
3rd, the structure of adopted prepressing structure is simple, easy construction and pressure effect is good, can easy, be rapidly completed pier top support
Frame pre-compaction process, and pressurize weight can easy, be quickly adjusted.
4th, it is provided with deformation monitoring device, real-time detection can be carried out to the displacement of multiple test points on pier top support, and will
Detected displacement data syn-chronization is sent to master control set, and the deformation monitoring of pier top support is easy.
5th, using effect is good and practical value is high, and the pier top bracket being adopted easy, reliable can be fixedly installed in deep water bridge
Pier pier top, and stressed effect is good, can provide firm support for forming panel；It is provided with prepressing structure and deformation monitoring dress simultaneously
Put, energy is easy, be rapidly completed pier top bracket pre-compaction process, and can carry out reality to the deformation of pier top support in pre-compaction process
When, accurate measurements.
In sum, this utility model structure is simple, reasonable in design and easy construction, using effect are good, the pier being adopted
Jacking frame easy, reliable can be fixedly installed in deep-water pier pier top, and energy is easy, be rapidly completed pier top bracket pre-compaction process.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Brief description
Fig. 1 is the use state of this utility model pier top bracket with reference to figure.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the use state of this utility model prepressing structure with reference to figure.
Fig. 5 is the schematic block circuit diagram of this utility model deformation monitoring device.
Description of reference numerals:
1 deep-water pier；2 triangle brackets；2-1 crossbeam；
2-2 medial support beam；2-3 skewed horizontal load beam；3-1 cross-brace beam；
Longitudinal support beam outside 3-2；Longitudinal support beam inside 3-3；4 fining twisted steels；
5 cross-brace plates；6 sand pockets；7 master control sets；
8 displacement detecting unit.
Specific embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, pier top bracket that this utility model includes being fixed on deep-water pier 1, by upper
To the lower prepressing structure that described pier top bracket is carried out with precompressed and pre-compaction process, the deformation of described pier top bracket is carried out
The deformation monitoring device of monitoring, described prepressing structure is placed horizontally on described pier top bracket；
Described pier top bracket includes being fixedly mounted on the bottom bracing structure at deep-water pier 1 top and is supported in described bottom
Upper support framework in supporting construction, described upper support framework is in horizontal layout；
Described bottom bracing structure includes two groups of triangle brackets 2 being symmetrically laid in both sides before and after deep-water pier 1 top,
Triangle bracket 2 described in every group all includes three triangle brackets 2 laid from left to right along direction across bridge, three described trianglees
Bridge is indulged to laying in the equal edge of bracket 2；Described deep-water pier 1 stands in water and constructed large-span continuous beam is supported
Vertical reinforcement concrete pier, the pier cap that described deep-water pier 1 includes pier shaft and is laid on described pier shaft, constructed large span
Continuous beam is In Reinforced Concrete Box Girder, and the beam section being supported in constructed large-span continuous beam on deep-water pier 1 is pier top beam section；
Three described triangle brackets 2 all in vertically to laying, three described triangle brackets 2 include a middle part bracket and two right
Claim to be laid in the side bracket of the described middle part bracket left and right sides, described middle part bracket is located at the underface of described pier top beam section；
Each described triangle bracket 2 all include one along vertical bridge to the crossbeam 2-1 laying, be supported in side-lower in crossbeam 2-1 together
Medial support beam 2-2 and the skewed horizontal load beam 2-3 being connected between crossbeam 2-1 and medial support beam 2-2, described crossbeam 2-1
The inner be fixed on described pier cap, the upper end of described skewed horizontal load beam 2-3 is supported in below the outer end of crossbeam 2-1, described tiltedly
It is each attached on described pier shaft to the bottom of support beam 2-3 and the bottom of medial support beam 2-2, described crossbeam 2-1, medial support
Beam 2-2 and skewed horizontal load beam 2-3 is shaped steel；
Described upper support framework is included by two groups of horizontal strokes being symmetrically laid in above both sides before and after described bottom bracing structure
To the bracing structure of support beam 3-1 composition and two be symmetrically laid in above the described bracing structure left and right sides vertical
To supporting construction, described in two groups, cross-brace beam 3-1 is laid in same level, and described in every group, cross-brace beam 3-1 all wraps
Include multiple tracks along vertical bridge to the cross-brace beam 3-1 being laid in from front to back in same level, described cross-brace beam 3-1 is along horizontal stroke
To being laid, described in every group, cross-brace beam 3-1 is all supported on triangle bracket 2 described in a group bridge；Two described longitudinal directions
Supporting construction is laid in same level and the two is laid in below the top board left and right sides of described pier top beam section respectively；Each
Described longitudinal support structure all includes the outside longitudinal support beam that multiple tracks is laid in same level from left to right along direction across bridge
3-2, described outside longitudinal support beam 3-2 are along vertical bridge to being laid；Described cross-brace beam 3-1 and outside longitudinal support beam 3-
2 are shaped steel；Two described longitudinal support structure form longitudinal bracing system；
Described prepressing structure includes two cross-brace being symmetrically laid in above both sides before and after described longitudinal bracing system
Plate 5 and two pressure structures being respectively placed on two described cross-brace plates 5, described cross-brace plate 5 is in horizontal layout,
Two described cross-brace plates 5 are laid in same level；Two described pressure structures are symmetrically laid, each described pressurization
Structure all includes multiple sand pockets 6 piled up on cross-brace plate 5；Described in two described cross-brace plates 5 are located at two groups respectively
Above cross-brace beam 3-1；
As shown in figure 5, described deformation monitoring device includes master control set 7, cross-brace beam 3-1 described in per pass and per pass institute
State and be laid with displacement detecting unit 8 on the longitudinal support beam 3-2 of outside, all displacement detecting lists that described pier top bracket is laid
Unit 8 is all connected with master control set 7.
In the present embodiment, described cross-brace plate 5 is plank.And, described cross-brace plate 5 is laid along direction across bridge.
When actually used, described cross-brace plate 5 can also adopt other types of gripper shoe, such as corrosion resistant plate etc..
In the present embodiment, described in cross-brace beam 3-1 described in per pass and per pass outside longitudinal support beam 3-2 on by front extremely
After be laid with multiple described displacement detecting unit 8.
During practice of construction, constructed large-span continuous beam is In Reinforced Concrete Box Girder, props up in constructed large-span continuous beam
The beam section supportting on deep-water pier 1 is pier top beam section, and the gross weight of two described pressure structures is described pier top beam section weight
1.1 again.
Wherein, constructed large-span continuous beam is more than the bridge main beam of 100m for across footpath.
In the present embodiment, described medial support beam 2-2 and skewed horizontal load beam 2-3 all from top to bottom gradually slope inwardly.
In the present embodiment, two described side brackets are located at below two webs of described pier top beam section respectively.
And, two described longitudinal support structure are laid in below the left and right sides wing plate of described top board respectively.
In the present embodiment, the I-shaped that described cross-brace beam 3-1 and outside longitudinal support beam 3-2 is laid side by side by twice
Steel is spliced.
During practice of construction, described cross-brace beam 3-1 and outside longitudinal support beam 3-2 can also adopt other types of type
Girder steel.
In the present embodiment, longitudinal support beam 3-2 composition outside-supporting in outside described in the multiple tracks in described longitudinal support structure
Structure, described longitudinal support structure also includes the symmetrical inner side longitudinal support beam 3-3 laying of before and after's twice, and inner side described in twice is vertical
It is respectively positioned on inside described outside-supporting structure to support beam 3-3, described in twice, inner side longitudinal support beam 3-3 is all along vertical bridge to laying
And the two is respectively positioned on same straight line, described in twice, inner side longitudinal support beam 3-3 is respectively supported at cross-brace beam described in two groups
On 3-1.
And, described inner side longitudinal support beam 3-3 is spliced by the I-steel that twice are laid side by side.
During practice of construction, described inner side longitudinal support beam 3-3 can also adopt other types of section steel beam.
In the present embodiment, described in every group, cross-brace beam 3-1 all includes cross-brace beam 3-1 described in twice, described in each
Longitudinal support structure all includes outside longitudinal support beam 3-2 described in twice.
During practice of construction, can according to specific needs, to included cross-brace in cross-brace beam 3-1 described in every group
In the quantity of beam 3-1 and each described longitudinal support structure, the quantity of included outside longitudinal support beam 3-2 is carried out accordingly respectively
Adjustment.
In the present embodiment, the bottom of described skewed horizontal load beam 2-3 and the bottom of medial support beam 2-2 are fastenedly connected as one
Body, the bottom of described skewed horizontal load beam 2-3 and the bottom of medial support beam 2-2 are all installed on described pier shaft.
And, the side wall upper part of described pier shaft has for skewed horizontal load beam 2-3 bottom and medial support beam 2-2 bottom clamp
Draw-in groove.
In the present embodiment, described pier cap is embedded with six groups of finish rolling that the crossbeam 2-1 in triangle bracket 2 is fixed
Screw-thread steel 4, is fixedly connected by clamp nut between the inner and described fining twisted steel 4 of described crossbeam 2-1；Described in per pass
Crossbeam 2-1 the inner is all fixed on described pier cap by fining twisted steel 4 described in a group.
Wherein, fining twisted steel 4 described in every group all includes fining twisted steel 4 described in multiple tracks, and described fining twisted steel 4 is along vertical
Bridge is to being laid.
In the present embodiment, fining twisted steel 4 described in every group all includes fining twisted steel 4 described in six roads, finish rolling described in six roads
4 point of three row two row of screw-thread steel are laid, and two arrange the left and right sides that described fining twisted steel 4 is located at fining twisted steel 4 respectively, institute
The inner stating fining twisted steel 4 is provided with the fixed seat fixing for fining twisted steel 4 described in six roads.
Thus, described triangle bracket 2 is fixed and easy construction.
For guaranteeing the steadiness of triangle bracket 2, the bottom of described skewed horizontal load beam 2-3 and the bottom of medial support beam 2-2
End is all fixed on described pier shaft by multiple crab-bolts.
During practice of construction, first described pier top bracket is constructed, specifically first to six in described bottom bracing structure
Individual described triangle bracket 2 is fixed respectively, then cross-brace beam 3-1 described in two groups in described upper support framework is divided
It is not fixed installation, being finally fixed installation to two described longitudinal support structure in described upper support framework is
Can.The forming panel carrying out molding construction to described pier top beam section includes being supported in the bed die below the base plate of described pier top beam section
With the side form of two web outside in left and right in described pier top beam section for left and right two symmetric support, the top of two described side forms is propped up
Support below the left and right sides wing plate of top board in the described pier top beam section.During actually used, cross-brace beam 3-1 described in two groups
The group supporting construction that described bed die is supported in pairs, two described longitudinal support structure are respectively and two described side forms are carried out
The supporting construction supporting.Thus, described pier top carrier structure is simple, easy construction, and reasonable stress, and support effect is good.
After the completion for the treatment of described pier top bracket construction, multiple described displacement detecting unit laid by described pier top bracket, and
Place described prepressing structure on described pier top bracket and carry out precompressed, in pre-compaction process, by multiple described displacement detecting unit
Deformation on described pier top bracket is monitored.
The above, be only preferred embodiment of the present utility model, not this utility model imposed any restrictions, every
Any simple modification, change and equivalent structure change above example made according to this utility model technical spirit, all still
Belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. a kind of large-span continuous beam deep-water pier pier top bracket prepressing construction structure it is characterised in that：Including being fixed on deep water
To institute in pier top bracket on bridge pier (1), the prepressing structure that from top to bottom described pier top bracket is carried out with precompressed and pre-compaction process
State the deformation monitoring device that the deformation of pier top bracket is monitored, described prepressing structure is placed horizontally at described pier top bracket
On；
Described pier top bracket includes being fixedly mounted on the bottom bracing structure at deep-water pier (1) top and being supported in described bottom propping up
Upper support framework on support structure, described upper support framework is in horizontal layout；
Described bottom bracing structure includes two groups of triangle brackets (2) being symmetrically laid in both sides before and after deep-water pier (1) top,
Triangle bracket (2) described in every group all includes three triangle brackets laid from left to right along direction across bridge (2), three described three
Angle bracket (2) is all along vertical bridge to laying；Described deep-water pier (1) is entered by standing in water and to large-span continuous beam of being constructed
The vertical reinforcement concrete pier that row supports, described deep-water pier (1) includes pier shaft and the pier cap being laid on described pier shaft, institute
Construction large-span continuous beam is In Reinforced Concrete Box Girder, is supported in the beam on deep-water pier (1) in constructed large-span continuous beam
Section is pier top beam section；, all in vertically to laying, three described triangle brackets (2) include one for three described triangle brackets (2)
Individual middle part bracket and two side brackets being symmetrically laid in the described middle part bracket left and right sides, described middle part bracket is located at described
The underface of pier top beam section；Each described triangle bracket (2) all include one along vertical bridge to the crossbeam (2-1) laid, together
Be supported in the interior side-lower of crossbeam (2-1) medial support beam (2-2) and be connected to crossbeam (2-1) and medial support beam (2-2) it
Between skewed horizontal load beam (2-3), the inner of described crossbeam (2-1) is fixed on described pier cap, described skewed horizontal load beam (2-3)
Upper end is supported in below the outer end of crossbeam (2-1), the bottom of described skewed horizontal load beam (2-3) and the bottom of medial support beam (2-2)
End is each attached on described pier shaft, and described crossbeam (2-1), medial support beam (2-2) and skewed horizontal load beam (2-3) are shaped steel；
Described upper support framework include by two groups be symmetrically laid in above both sides before and after described bottom bracing structure laterally
Bracing structure and two longitudinal directions being symmetrically laid in above the described bracing structure left and right sides that support beam (3-1) forms
Supporting construction, described in two groups, cross-brace beam (3-1) is laid in same level, and cross-brace beam (3-1) described in every group is all
Including multiple tracks along vertical bridge to the cross-brace beam (3-1) being laid in from front to back in same level, described cross-brace beam (3-
1) laid along direction across bridge, described in every group, cross-brace beam (3-1) is all supported on triangle bracket (2) described in a group；Two
Individual described longitudinal support structure is laid in same level and the two is laid in two about the top board of described pier top beam section respectively
Side-lower；Each described longitudinal support structure all includes the outside that multiple tracks is laid in same level from left to right along direction across bridge
Longitudinal support beam (3-2), described outside longitudinal support beam (3-2) is along vertical bridge to being laid；Described cross-brace beam (3-1) and
Outside longitudinal support beam (3-2) is shaped steel；Two described longitudinal support structure form longitudinal bracing system；
Described prepressing structure includes two cross-brace plates (5) being symmetrically laid in above both sides before and after described longitudinal bracing system
The pressure structure being respectively placed on two described cross-brace plates (5) with two, described cross-brace plate (5) is in horizontal cloth
If two described cross-brace plates (5) are laid in same level；Two described pressure structures are symmetrically laid, each institute
State pressure structure and all include multiple sand pockets (6) piled up on cross-brace plate (5)；Two described cross-brace plates (5) are respectively
Above cross-brace beam (3-1) described in two groups；
Described deformation monitoring device includes master control set (7), and outside described in cross-brace beam (3-1) described in per pass and per pass is longitudinally
Displacement detecting unit (8) is laid with support beam (3-2), all displacement detecting unit (8) that described pier top bracket is laid
All it is connected with master control set (7).
2. according to the large-span continuous beam deep-water pier pier top bracket prepressing construction structure described in claim 1 it is characterised in that：
Described cross-brace plate (5) is plank.
3., according to the large-span continuous beam deep-water pier pier top bracket prepressing construction structure described in claim 1 or 2, its feature exists
In：All it is laid with multiple on outside longitudinal support beam (3-2) described in cross-brace beam (3-1) described in per pass and per pass from front to back
Described displacement detecting unit (8).
4., according to the large-span continuous beam deep-water pier pier top bracket prepressing construction structure described in claim 1 or 2, its feature exists
In：Two described side brackets are located at below two webs of described pier top beam section respectively.
5., according to the large-span continuous beam deep-water pier pier top bracket prepressing construction structure described in claim 1 or 2, its feature exists
In：Two described longitudinal support structure are laid in below the left and right sides wing plate of described top board respectively.
6., according to the large-span continuous beam deep-water pier pier top bracket prepressing construction structure described in claim 1 or 2, its feature exists
In：Composition outside-supporting structure in outside longitudinal support beam (3-2) described in multiple tracks in described longitudinal support structure, described longitudinal direction is propped up
Support structure also includes the symmetrical inner side longitudinal support beam (3-3) laid of before and after's twice, inner side longitudinal support beam (3-3) described in twice
It is respectively positioned on inside described outside-supporting structure, all along vertical bridge, to laying and the two is equal for inner side longitudinal support beam (3-3) described in twice
It is located along the same line, described in twice, inner side longitudinal support beam (3-3) is respectively supported at cross-brace beam (3-1) described in two groups
On.
7., according to the large-span continuous beam deep-water pier pier top bracket prepressing construction structure described in claim 1 or 2, its feature exists
In：Described in every group, cross-brace beam (3-1) all includes cross-brace beam (3-1) described in twice, each described longitudinal support structure
All include outside longitudinal support beam (3-2) described in twice.
8., according to the large-span continuous beam deep-water pier pier top bracket prepressing construction structure described in claim 1 or 2, its feature exists
In：The bottom of described skewed horizontal load beam (2-3) is fastenedly connected with the bottom of medial support beam (2-2) and is integrated, described oblique
The bottom of support beam (2-3) is all installed on described pier shaft with the bottom of medial support beam (2-2).
9., according to the large-span continuous beam deep-water pier pier top bracket prepressing construction structure described in claim 1 or 2, its feature exists
In：Six groups of fining twisted steels (4) that the crossbeam (2-1) in triangle bracket (2) is fixed, institute are embedded with described pier cap
State and be fixedly connected by clamp nut between the inner and described fining twisted steel of crossbeam (2-1) (4)；Crossbeam described in per pass
(2-1) the inner is all fixed on described pier cap by fining twisted steel (4) described in a group.
10., according to the large-span continuous beam deep-water pier pier top bracket prepressing construction structure described in claim 9, its feature exists
In：Fining twisted steel (4) described in every group all includes fining twisted steel described in multiple tracks (4), described fining twisted steel (4) along vertical bridge to
Laid.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552502A (en) * | 2019-08-08 | 2019-12-10 | 上海二十冶建设有限公司 | Construction method of C-shaped stock yard intermediate retaining wall overhanging platform |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552502A (en) * | 2019-08-08 | 2019-12-10 | 上海二十冶建设有限公司 | Construction method of C-shaped stock yard intermediate retaining wall overhanging platform |
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