CN107740345A - A kind of monoblock type welds steel anchor box and its mounting process entirely - Google Patents
A kind of monoblock type welds steel anchor box and its mounting process entirely Download PDFInfo
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- CN107740345A CN107740345A CN201711056951.0A CN201711056951A CN107740345A CN 107740345 A CN107740345 A CN 107740345A CN 201711056951 A CN201711056951 A CN 201711056951A CN 107740345 A CN107740345 A CN 107740345A
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- suspension cable
- case
- screw rod
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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Abstract
The invention discloses a kind of monoblock type to weld steel anchor box and its mounting process entirely, including upper steel case and the anchor structure being embedded in concrete king-post, upper steel case is mainly made up of the casing and the suspension cable anchor case for anchoring suspension cable of upper end open, suspension cable anchor case is welded on cabinet wall, be provided with casing for the hole through suspension cable, hole to open up position corresponding with the set location of suspension cable anchor case；Anchor structure includes prestress steel screw rod, and prestress steel screw rod is vertically arranged, and the upper end of prestress steel screw rod passes concrete towers capital face and is fixed on box bottom, and the lower end of prestress steel screw rod is anchored in concrete king-post by anchor.The present invention welds steel anchor box entirely for monoblock type, suspension cable is concentrated to the tower top for being anchored at concrete king-post, increase the vertical inclination angle of suspension cable, improve the service efficiency of suspension cable, and overall stress, the stress performance of steel anchor box in itself can be obviously improved so that bridge holistic resistant behavior and fatigue resistance are more excellent.
Description
Technical field
The present invention relates to a kind of factory's overall processing, overall increase to tower top carry out install anchoring the full welding steel anchor of monoblock type
Case, further relate to the mounting process that the monoblock type welds steel anchor box entirely.
Background technology
Rope, tower anchorage zone be by stay cable force safely, be delivered evenly to the important feature of king-post, the choosing of anchor type
Select relevant away from factors such as, Suo Li sizes with Sarasota form, the arrangement form of suspension cable, suspension cable quantity, rope.At present in engineering often
Rope, tower anchorage zone form mainly have pre-stress type, traditional steel anchor box formula, steel anchor beam formula, intersect anchoring type and cradle type this
Five kinds of anchor types.
Traditional steel anchor box formula develops on the basis of steel anchor beam formula, mostly using segmented pre- along Sarasota axis
System, the non-integral type of segmented installation, it has the following disadvantages：
With pre-stress type, steel anchor beam formula, intersect anchoring type and cradle type is similar, the rope of traditional steel anchor box formula, tower anchoring
Point is axial arranged along Sarasota, and vertical spacing is larger, arrangement is scattered, globality poor, when height-limited applied to bridge floor above Sarasota
Cable-stayed bridge when, the inclination angle of suspension cable can be caused less than normal, vertical force component reduces, and causes the service efficiency of suspension cable relatively low, economical
Property is poor, moreover, the axial force that girder is born is also larger so that holistic resistant behavior is poor.
(2) traditional steel anchor box is applied along segmented prefabricated, the segmented installation of Sarasota axis, specifically steel anchor box with Sarasota mostly
Work progress is segmented to be installed successively, and construction technology is complex, moreover, the steel anchor box of adjacent segment in construction, positions and installation
Accuracy is difficult to ensure that this restrict the further genralrlization of the box anchor type of anchor.
The content of the invention
First purpose of the present invention is to provide that a kind of good economy performance, stress performance be excellent, easy for installation, installation accuracy
High monoblock type welds steel anchor box entirely, and especially in bridge height-limited suitable for Sarasota, its advantage is especially pronounced.
First purpose of the present invention is realized by the following technical solutions：A kind of monoblock type welds steel anchor box entirely, and it is special
Sign is：It includes upper steel case and the anchor structure being embedded in concrete king-post, and the upper steel case is mainly opened by upper end
The casing of mouth and the suspension cable anchor case for anchoring suspension cable are formed, and the suspension cable anchor case is welded on cabinet wall, in institute
State the hole being provided with casing for through suspension cable, described hole to open up position relative with the set location of suspension cable anchor case
Should；The anchor structure includes prestress steel screw rod, and the prestress steel screw rod is vertically arranged, the prestress steel screw rod it is upper
End passes concrete towers capital face and is fixed on box bottom, and the lower end of prestress steel screw rod be anchored at by anchor it is mixed
Coagulate in native king-post.
The present invention welds steel anchor box entirely for monoblock type, and suspension cable can be concentrated to the tower top for being anchored at concrete king-post, increased
The vertical inclination angle of suspension cable, the service efficiency of suspension cable, and the overall stress of the present invention are improved, steel anchor box sheet can be obviously improved
The stress performance of body so that bridge holistic resistant behavior and fatigue resistance are more excellent；The present invention is applied using overall processing, integral hoisting
Work technique, convenient and quick construction, construction quality are easily controlled；Construction when, suspension cable can the tensioning in steel anchor box, tensioning equipment
Convenient transfer, operating efficiency are high, can application property it is good.In addition, the lower end of prestress steel screw rod is anchored at coagulation by anchor
In native king-post, the connection of steel anchor box and concrete king-post can be strengthened.The present invention is excellent when suitable for Sarasota height-limited bridge
Gesture is more notable.Anchor can use steel anchor beam etc..
The specific of hole of the present invention opens up position according to the inclination angle of suspension cable to determine.
As a kind of preferred embodiment of the present invention, the casing is cuboid, and the casing is mainly relative by a pair
And web, a pair end plates and bottom plate relative and set set form, web is formed by welding the installation cavity of rectangle, institute with end plate two-by-two
Installation cavity is stated to be welded on the bottom plate, and the periphery of bottom plate overhangs installation cavity, the suspension cable anchor case is welded on web
Hole is set on medial surface, on the end plate and bottom plate so that suspension cable passes through.
As one embodiment of the present invention, it is vertically arranged in the installation cavity and is arranged along direction across bridge spacing parallel arranging
There is a several piece endosternum, the both sides of every block of endosternum are respectively with the opposite end plate weld, and the base of every block of endosternum is welded with bottom plate,
So as to which installation cavity is separated into multiple chambers along direction across bridge, the suspension cable anchor case be located in each chamber and with the inwall of chamber
Welding.The construction size of steel anchor box of the present invention is determined according to the tonnage of suspension cable.
As a modification of the present invention, the monoblock type welds steel anchor box entirely also includes locating rack, and the locating rack is main
It is made up of top plate, several PBL plates and connecting plate, the PBL plates are vertically arranged open pore steel plate, and the top of the PBL plates is welded
It is connected on the lower edge of top plate, and the set location of the web, endosternum and the set location of PBL plates correspond up and down, institute
State connecting plate to be welded on the side of each PBL plates so as to connect locating rack integral, the upper end of the prestress steel screw rod is worn
Cross the top plate of locating rack and the bottom plate of casing and stretch-draw anchor is on the steel box structures of floor peripheral are welded in, so that steel anchor
Case is connected with concrete king-post.The present invention uses locating rack auxiliary positioning, it is ensured that steel anchor box locus is accurate；It is moreover, fixed
Position frame top plate flatness is easily guaranteed that it is able to ensure that the bottom plate of casing and concrete towers capital face are closely connected, so as to prevent part
Stress concentration.
Suspension cable anchor case of the present invention in each chamber is arranged in pairs, and is set relatively per two suspension cable anchor casees of centering
Put and be located at both sides in chamber, the suspension cable anchor case per side is in arranged for interval on vertical.
In order to optimize structure stress, ensure welding quality, prevent stress raisers, as further changing for the present invention
Enter, the suspension cable anchor case in adjacent tank room is offsetting vertically arrangement, in same chamber the adjacent suspension cable anchor case of homonymy it is vertical between
Away from for 1.2~1.6m.
As a kind of way of recommendation of the present invention, the suspension cable anchor case is mainly by anchor plate, bearing plate, a pair of power transmission abdomens
Plate and stiffener composition, the anchor plate are welded on bearing plate and are provided with the central through hole run through and be used for through suspension cable, should
The both sides of bearing plate are divided into power transmission web, outer wall of the stiffener along power transmission web is vertically arranged and along power transmission web
Short transverse extends, and is arranged along the width spacing parallel arranging of power transmission web, and the lateral angles of suspension cable can pass through anchor plate
Transverse thickness difference be adjusted.The lateral angles of suspension cable refer to the angle of suspension cable and its projection on vertical plane.
Second object of the present invention is to provide the mounting process that a kind of above-mentioned monoblock type welds steel anchor box entirely.
Second object of the present invention is realized by the following technical solutions：A kind of above-mentioned monoblock type welds steel anchor box entirely
Mounting process, specifically include following steps：
(1) upper steel case, locating rack and the anchor structure that monoblock type welds steel anchor box entirely are made respectively；
(2) before the concrete king-post segmental construction where monoblock type welds steel anchor box anchor structure entirely, the colligation concrete
The reinforcing bar of king-post section, while by locating rack and anchor structure lifting in place, and its spot welding is positioned at the concrete king-post
On reinforcing bar, the prestress steel screw rod upper end of anchor structure passes through the top plate of locating rack；
(3) casting concrete, and self-positioning frame top plate reserves downwards hole, and mud jacking construction is finally carried out in the hole；
(4) the upper steel case that monoblock type is welded to steel anchor box entirely is promoted to the surface of locating rack and in place, makes upper steel case
Bottom plate is closely attached on the top plate of locating rack, while the upper end of prestress steel screw rod passes through the periphery preformed hole of upper steel bottom plate；
(5) prestress steel screw rod is anchored in steel box structures after stretch-draw prestressing force steel screw rod on upper steel bottom plate；
(6) cement mortar is pressed into the bellows of prestress steel screw rod；
(7) suspension cable is reeved, after tensioning, is anchored on suspension cable anchor case.
Mud jacking construction of the present invention specifically includes following steps：When being processed in factory, on the top plate of the locating rack
Multiple concrete pouring holes and pressure drop venthole are opened up, the concrete pouring hole is used for casting concrete, the pressure drop outlet
Hole is used to be exhausted during casting concrete, and after concrete has been poured, closed concrete pouring hole, then pass through part pressure drop
Venthole is pressed into cement mortar, and by closely to mud jacking venthole is far opened one by one, treating each venthole outflow uniformly sticky cement mortar
And voltage stabilizing is closed after 2 minutes, mud jacking construction is completed in circulation successively.
The present invention the step (3) in, the height of the hole is 5~10cm.
Locating rack top plate lower concrete compactness is to influence the key factor of local pressure, mainly by locating rack top
The hole that 5~10cm height is reserved at plate bottom carries out mud jacking construction to ensure the compactness of the part concrete；Concrete king-post
Tower top flatness is mainly lifted by setting locating rack, improving the processing flatness of locating rack top plate top surface and being equipped with steel anchor box
Preceding levelling measure is realized, to ensure that steel anchor box bottom plate and king-post top surface are closely connected, prevents stress raisers.
Compared with prior art, the present invention has following significant effect：
(1) the present invention welds steel anchor box entirely for monoblock type, and suspension cable can be concentrated to the tower top for being anchored at concrete king-post, increase
The vertical inclination angle of suspension cable, the service efficiency of suspension cable, and the overall stress of the present invention are improved, steel anchor box can be obviously improved
The stress performance of itself so that bridge holistic resistant behavior and fatigue resistance are more excellent.
(2) using overall processing, integral hoisting construction technology, convenient and quick construction, construction quality are easily controlled the present invention.
(3) the present invention is in construction, suspension cable can the tensioning in steel anchor box, tensioning equipment convenient transfer, operating efficiency are high,
Can application property it is good.
(4) the lower end of prestress steel screw rod of the present invention is anchored by steel anchor beam, can strengthen steel anchor box and concrete king-post
Connection.
(5) locating rack top plate bottom of the present invention reserves hole and carries out mud jacking construction, and the compactness of the part concrete is easier to protect
Card.
(6) the present invention uses locating rack auxiliary positioning, can ensure that steel anchor box locus is accurate；Locating rack top plate is smooth
Degree is easily guaranteed that, it can be ensured that steel anchor box bottom plate and king-post top surface are closely connected, prevent stress raisers.
(7) the bridge of various Sarasota height present invention can be suitably applied to, and when suitable for Sarasota height-limited bridge, it is excellent
Gesture is more notable.
Brief description of the drawings
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is elevational schematic view of the present invention；
Fig. 1 a are A close-up schematic views in Fig. 1；
Fig. 2 is the schematic top plan view (being not drawn into suspension cable anchor case) of upper steel case of the present invention；
Fig. 3 is one of schematic diagram of mounting process lifting upper steel case of the present invention；
Fig. 4 is the two of the schematic diagram of mounting process lifting upper steel case of the present invention；
Fig. 5 is the three of the schematic diagram of mounting process lifting upper steel case of the present invention；
Fig. 6 is the four of the schematic diagram of mounting process lifting upper steel case of the present invention；
Fig. 7 is the five of the schematic diagram of mounting process lifting upper steel case of the present invention.
Embodiment
It is that a kind of monoblock type of the present invention welds steel anchor box and mounting process entirely, monoblock type welds steel anchor box entirely as shown in Fig. 1~7
For all-welded structure, it includes upper steel case 1, locating rack 7 and the anchor structure 2 being embedded in concrete king-post 11, upper steel
Case 1 is mainly made up of the casing and the suspension cable anchor case 3 for anchoring suspension cable 12 of upper end open, and suspension cable anchor case 3 is welded on
On cabinet wall, it is provided with casing for the hole through suspension cable, the setting for opening up position and suspension cable anchor case 3 of hole
Position is corresponding, and the specific set location of hole determines according to the inclination angle of suspension cable.Lower anchor structure 2 includes prestress steel spiral shell
Bar 5, prestress steel screw rod 5 are multigroup and vertically arranged, and the upper end of multigroup prestress steel screw rod 5 passes the top surface of concrete king-post 11
It is anchored on box bottom, the lower end of prestress steel screw rod 5 is anchored in concrete king-post 11 by anchor, in this implementation
In example, adjacent several prestress steel screw rods 5 are one group, and anchor uses steel anchor beam 6, under every group of prestress steel screw rod 5
End is anchored on a steel anchor beam 6, and steel anchor beam 6 is embedded in concrete king-post and positioned with reinforcing bar spot welding, can also be according to existing
Field condition of construction is anchored using existing other anchors.The configuration of prestress steel screw rod by normal use, disconnected rope (or
Person changes rope), the principle that keeps cable support tower steel anchor box not topple under the operating mode such as earthquake considers.
In the present embodiment, casing is cuboid, casing is mainly relative by a pair and set web 21, a pair it is relative and set
End plate 22 and bottom plate 23 form, web 21 and end plate 22 are formed by welding the installation cavity of rectangle two-by-two, and installation cavity is welded on bottom plate
On 23, and the periphery of bottom plate 23 overhangs installation cavity, and suspension cable anchor case 3 is welded on the medial surface of web 21, hole corresponding positions
In on end plate 22 and bottom plate 23.It is vertically arranged in installation cavity and is placed with two blocks of endosternums 24 along direction across bridge spacing parallel arranging, often
The both sides of block endosternum 24 are welded with this to end plate 22 respectively, and the base of every block of endosternum 24 is welded with bottom plate 23, so that will
Installation cavity is separated into three chambers along direction across bridge, and suspension cable anchor case 3 is located in each chamber and welded with the inwall of chamber.It is located at
Suspension cable anchor case 3 in each chamber is arranged in pairs, and is oppositely arranged and positioned in chamber two per two suspension cable anchor casees 3 of centering
Side, the suspension cable anchor case 3 per side is in arranged for interval on vertical.Suspension cable anchor case 3 in adjacent tank room staggers cloth on vertical
Put, the vertical spacing of the adjacent suspension cable anchor case 3 of homonymy is 1.2~1.6m in same chamber, can optimize structure stress, ensure welding
Quality, prevent stress raisers.
Suspension cable anchor case 3 is mainly made up of anchor plate 31, bearing plate 32, a pair of power transmission webs 33 and stiffener 34, anchor pad
Plate 31 is welded on bearing plate 32 and is provided with the central through hole run through and is used for through suspension cable 12, and this is divided into power transmission web 33
The both sides of bearing plate 32, outer wall of the stiffener 34 along power transmission web 33 is vertically arranged and prolongs along the short transverse of power transmission web 33
Stretch, and arranged along the width spacing parallel arranging of power transmission web 33, the lateral angles of suspension cable 12 can pass through the horizontal stroke of anchor plate 31
It is adjusted to thickness difference.
Locating rack 7 is mainly made up of 71,6 PBL plates 72 of top plate and connecting plate 73, and PBL plates 72 are vertically arranged perforate
Steel plate, the top of PBL plates 72 are welded on the lower edge of top plate 71, and the set location of outer web 21, endosternum 24 and PBL plates
Set location up and down correspond, connecting plate 73 be welded on the side of each PBL plates 72 so as to locating rack 7 is connected it is integral,
Vertical people hole 9 is provided with the center of top plate 71 and bottom plate 23, is communicated with the chamber 8 in the concrete king-post 11 of lower section, and
Horizontal direction people hole 9a also is provided with web 21 and endosternum 24.The upper end of prestress steel screw rod 5 passes through the top plate 71 of locating rack 7
Bottom plate 23 and stretch-draw anchor with casing is on the steel box structures 10 on the periphery of bottom plate 23 are welded in, so that steel anchor box 1 is with mixing
Native king-post 11 is coagulated to be connected.Using locating rack auxiliary positioning, it is ensured that steel anchor box locus is accurate；Moreover, locating rack top plate is put down
Whole degree is easily guaranteed that it is able to ensure that the bottom plate of casing and concrete towers capital face are closely connected, so as to prevent stress raisers.
Above-mentioned monoblock type welds the mounting process of steel anchor box entirely, using overall processing, overall increases to tower top and carries out installation anchor
Solid construction technology, specifically include following steps：
(1) the upper steel case 1, locating rack 7 and anchor structure 2 that monoblock type welds steel anchor box entirely are made respectively；
(2) before the concrete king-post segmental construction where monoblock type welds steel anchor box anchor structure 2 entirely, the colligation coagulation
The reinforcing bar of native king-post section, while locating rack 7 and anchor structure 2 are lifted in place, and its spot welding is positioned at the concrete towers
On the reinforcing bar of post, the upper end of prestress steel screw rod 5 of anchor structure passes through the top plate 71 of locating rack 7；
(3) casting concrete, and the top plate 71 of self-positioning frame 7 reserves downwards hole, the height of hole is 5~10cm, then at this
Mud jacking construction is carried out in hole, it is ensured that locating rack top plate lower concrete is closely knit and top surface flatness is not more than 0.2mm.Specifically
Comprise the following steps：Multiple concrete pouring holes and pressure drop venthole are opened up on the top plate of locating rack 7 when being processed in factory, are mixed
Coagulate native pouring hole and be used for casting concrete, pressure drop venthole is used to be exhausted during casting concrete, and is pouring concrete
Afterwards, closed concrete pouring hole, then cement mortar is pressed into by part pressure drop venthole, and by closely to far opening mud jacking outlet one by one
Hole, flow out uniformly sticky cement mortar after each venthole and voltage stabilizing is closed after 2 minutes, mud jacking construction is completed in circulation successively.
Locating rack top plate lower concrete compactness is to influence the key factor of local pressure, mainly by being reserved at locating rack top plate bottom
The hole of 5~10cm height carries out mud jacking construction to ensure the compactness of the part concrete；The tower top of concrete king-post is smooth
Degree mainly by set locating rack, improve locating rack top plate top surface processing flatness and be equipped with steel anchor box lift before it is levelling
Measure is realized, to ensure that steel anchor box bottom plate and king-post top surface are closely connected, prevents stress raisers.
(4) the upper steel case 1 for monoblock type being welded to steel anchor box entirely using large-scale floating crane (or hoisting frame) is promoted to locating rack 7
Surface is simultaneously accurate in place, and in the present embodiment, upper steel case 1, locating rack 7 and lower anchor structure 2 specifically use hoisting frame
13 liftings, can also use large-scale floating crane.And the bottom plate 23 of upper steel case 1 is closely attached on the top plate 71 of locating rack 7, while in advance
The upper end of stress steel screw rod 5 passes through the periphery of the bottom plate 23 of upper steel case 1；Referring to Fig. 3, hoisting frame 13 is installed in place, prepares lifting；
Referring to Fig. 4, integral lifting steel anchor box；Referring to Fig. 5, precalculated position is lifted to, prepares translation；Referring to Fig. 6, pre-determined bit is moved to
Put, it is in place to prepare decentralization；Referring to Fig. 7, steel anchor box is integrally transferred in place.
(5) on the bottom plate 23 of upper steel case 1 after stretch-draw prestressing force steel screw rod 5, prestress steel screw rod 5 is anchored at steel box knot
On structure 10；
(6) cement mortar is pressed into the bellows of prestress steel screw rod 5；
(7) suspension cable 12 is reeved, after tensioning, is anchored on suspension cable anchor case 3.
The implementation of the present invention is not limited to this, according to the above of the present invention, knows according to the ordinary skill of this area
Knowledge and customary means, under the premise of the above-mentioned basic fundamental thought of the present invention is not departed from, the present invention can also make other a variety of shapes
Modification, replacement or the change of formula, all fall within rights protection scope of the present invention.
Claims (10)
1. a kind of monoblock type welds steel anchor box entirely, it is characterised in that：It includes upper steel case and the anchor being embedded in concrete king-post
Fixing structure, the upper steel case is mainly made up of the casing and the suspension cable anchor case for anchoring suspension cable of upper end open, described
Suspension cable anchor case is welded on cabinet wall, is provided with the casing and is opened for the hole through suspension cable, described hole
If position is corresponding with the set location of suspension cable anchor case；The anchor structure includes prestress steel screw rod, the prestress steel
Screw rod is vertically arranged, and the upper end of the prestress steel screw rod passes concrete towers capital face and is fixed on box bottom, and in advance should
The lower end of power steel screw rod is anchored in concrete king-post by anchor.
2. monoblock type according to claim 1 welds steel anchor box entirely, it is characterised in that：The casing is cuboid, the case
Body is mainly made up of a pair web, a pair end plates and bottom plate relative and set relative and set, and web welds structure two-by-two with end plate
Rectangular installation cavity, the installation cavity are welded on the bottom plate, and the periphery of bottom plate overhangs installation cavity, the suspension cable
Anchor case is welded on the medial surface of web, and hole is set on the end plate and bottom plate so that suspension cable passes through.
3. monoblock type according to claim 2 welds steel anchor box entirely, it is characterised in that：It is vertically arranged simultaneously in the installation cavity
Be placed with several piece endosternum along direction across bridge spacing parallel arranging, the both sides of every block of endosternum respectively with the opposite end plate weld, and in every piece
The base of web is welded with bottom plate, and so as to which installation cavity is separated into multiple chambers along direction across bridge, the suspension cable anchor case is positioned at every
Welded in individual chamber and with the inwall of chamber.
4. monoblock type according to claim 3 welds steel anchor box entirely, it is characterised in that：The monoblock type is welded steel anchor box and also wrapped entirely
Locating rack is included, the locating rack is mainly made up of top plate, several PBL plates and connecting plate, and the PBL plates are vertically arranged perforate
Steel plate, the top of the PBL plates are welded on the lower edge of top plate, and the set location of the web, endosternum and PBL plates are set
Seated position up and down correspond, the connecting plate be welded on the side of each PBL plates so as to locating rack is connected it is integral, it is described
The upper end of prestress steel screw rod is being welded in the steel of floor peripheral through the top plate of locating rack and the bottom plate and stretch-draw anchor of casing
In box structure, so that steel anchor box is connected with concrete king-post.
5. monoblock type according to claim 4 welds steel anchor box entirely, it is characterised in that：Suspension cable anchor in each chamber
Case is arranged in pairs, and is oppositely arranged per two suspension cable anchor casees of centering and is located at both sides in chamber, and the suspension cable anchor case per side exists
Vertical is in above arranged for interval.
6. monoblock type according to claim 5 welds steel anchor box entirely, it is characterised in that：Suspension cable anchor case in adjacent tank room exists
It is staggeredly arranged on vertical, the vertical spacing of the adjacent suspension cable anchor case of homonymy is 1.2~1.6m in same chamber.
7. monoblock type according to claim 6 welds steel anchor box entirely, it is characterised in that：The suspension cable anchor case is mainly by anchor pad
Plate, bearing plate, a pair of power transmission webs and stiffener composition, the anchor plate are welded on bearing plate and are provided with the center run through and lead to
Hole is used for through suspension cable, and this is divided into the both sides of bearing plate to power transmission web, and outer wall of the stiffener along power transmission web erects
Extend to setting and along the short transverse of power transmission web, and arranged along the width spacing parallel arranging of power transmission web, suspension cable
Lateral angles can be adjusted by the transverse thickness difference of anchor plate.
8. the monoblock type described in a kind of claim 7 welds the mounting process of steel anchor box entirely, it is characterised in that specifically includes following step
Suddenly：
(1) upper steel case, locating rack and the anchor structure that monoblock type welds steel anchor box entirely are made respectively；
(2) before the concrete king-post segmental construction where anchor structure, the reinforcing bar of the colligation concrete king-post section, simultaneously
By locating rack and anchor structure lifting in place, and its spot welding is positioned on the reinforcing bar of the concrete king-post, anchor structure it is pre-
Stress steel screw rod upper end passes through the top plate of locating rack；
(3) casting concrete, and self-positioning frame top plate reserves downwards hole, and mud jacking construction is finally carried out in the hole；
(4) the upper steel case that monoblock type is welded to steel anchor box entirely is promoted to the surface of locating rack and in place, makes the bottom plate of upper steel case
It is closely attached on the top plate of locating rack, while the upper end of prestress steel screw rod passes through the periphery preformed hole of upper steel bottom plate；
(5) prestress steel screw rod is anchored in steel box structures after stretch-draw prestressing force steel screw rod on upper steel bottom plate；
(6) cement mortar is pressed into the bellows of prestress steel screw rod；
(7) suspension cable is reeved, after tensioning, is anchored on suspension cable anchor case.
9. mounting process according to claim 8, it is characterised in that：The mud jacking construction specifically includes following steps：Work
Multiple concrete pouring holes and pressure drop venthole, the concreting are opened up on the top plate of the locating rack when being processed in factory
Hole is used for casting concrete, and the pressure drop venthole is used to be exhausted during casting concrete, and after concrete has been poured, envelope
Concrete pouring hole is closed, then cement mortar is pressed into by part pressure drop venthole, and by closely to mud jacking venthole is far opened one by one, treating
Each closed after the uniform sticky cement mortar of venthole outflow and voltage stabilizing, circulation completion mud jacking construction successively.
10. mounting process according to claim 9, it is characterised in that：The step (3) in, the height of the hole is
5~10cm.
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| CN201711056951.0A CN107740345A (en) | 2017-10-27 | 2017-10-27 | A kind of monoblock type welds steel anchor box and its mounting process entirely |
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| CN201711056951.0A CN107740345A (en) | 2017-10-27 | 2017-10-27 | A kind of monoblock type welds steel anchor box and its mounting process entirely |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374323A (en) * | 2018-04-04 | 2018-08-07 | 中铁第四勘察设计院集团有限公司 | It is a kind of to be used to encircle the Sarasota boundling anchor structure for holding cable-stayed bridge |
| CN109596329A (en) * | 2018-12-11 | 2019-04-09 | 佛山科学技术学院 | A kind of Anchorage Zone of Cable-stayed Bridge Pylon stress distribution test self-balanced loading device |
| CN110387832A (en) * | 2019-08-19 | 2019-10-29 | 中冶建工集团有限公司 | A kind of lifting device of bridge steel anchor box segment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243654A (en) * | 2013-05-16 | 2013-08-14 | 中交路桥华南工程有限公司 | Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method |
| CN104727222A (en) * | 2015-04-07 | 2015-06-24 | 林同棪国际工程咨询（中国）有限公司 | Separated steel and concrete combined cable tower anchorage zone structure |
| KR101637249B1 (en) * | 2015-11-13 | 2016-07-07 | 대림산업 주식회사 | Composite Girder with Steel Box Beam and Precast Concrete Slabs, and Constructing Method thereof |
| CN206562570U (en) * | 2016-12-07 | 2017-10-17 | 华南理工大学 | A kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring |
| CN207498828U (en) * | 2017-10-27 | 2018-06-15 | 广东省交通规划设计研究院股份有限公司 | A kind of monoblock type welds steel anchor box entirely |
-
2017
- 2017-10-27 CN CN201711056951.0A patent/CN107740345A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243654A (en) * | 2013-05-16 | 2013-08-14 | 中交路桥华南工程有限公司 | Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method |
| CN104727222A (en) * | 2015-04-07 | 2015-06-24 | 林同棪国际工程咨询（中国）有限公司 | Separated steel and concrete combined cable tower anchorage zone structure |
| KR101637249B1 (en) * | 2015-11-13 | 2016-07-07 | 대림산업 주식회사 | Composite Girder with Steel Box Beam and Precast Concrete Slabs, and Constructing Method thereof |
| CN206562570U (en) * | 2016-12-07 | 2017-10-17 | 华南理工大学 | A kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring |
| CN207498828U (en) * | 2017-10-27 | 2018-06-15 | 广东省交通规划设计研究院股份有限公司 | A kind of monoblock type welds steel anchor box entirely |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374323A (en) * | 2018-04-04 | 2018-08-07 | 中铁第四勘察设计院集团有限公司 | It is a kind of to be used to encircle the Sarasota boundling anchor structure for holding cable-stayed bridge |
| CN108374323B (en) * | 2018-04-04 | 2023-09-12 | 中铁第四勘察设计院集团有限公司 | Cable tower bundling anchoring structure for arch-supporting cable-stayed bridge |
| CN109596329A (en) * | 2018-12-11 | 2019-04-09 | 佛山科学技术学院 | A kind of Anchorage Zone of Cable-stayed Bridge Pylon stress distribution test self-balanced loading device |
| CN110387832A (en) * | 2019-08-19 | 2019-10-29 | 中冶建工集团有限公司 | A kind of lifting device of bridge steel anchor box segment |
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