CN107740351B - A kind of more braced arch rib vertical rotating construction methods of large span - Google Patents

A kind of more braced arch rib vertical rotating construction methods of large span Download PDF

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Publication number
CN107740351B
CN107740351B CN201710945560.8A CN201710945560A CN107740351B CN 107740351 B CN107740351 B CN 107740351B CN 201710945560 A CN201710945560 A CN 201710945560A CN 107740351 B CN107740351 B CN 107740351B
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China
Prior art keywords
arch rib
tower
jack
turning hinge
buckstay
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CN201710945560.8A
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CN107740351A (en
Inventor
张鸿
薛志武
黄朝晖
汪文霞
曾炜
郭强
周明生
谢道平
邓华明
侯晓勤
胥奇
张梦元
李曾曾
许超斌
阮明华
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CHINA COMMUNICATIONS WUHAN INSTITUTE OF HARBOR ENGINEERING DESIGN Co Ltd
CCCC Second Harbor Engineering Co
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CHINA COMMUNICATIONS WUHAN INSTITUTE OF HARBOR ENGINEERING DESIGN Co Ltd
CCCC Second Harbor Engineering Co
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • E01D21/08Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections

Abstract

The present invention relates to method for bridge construction technical fields, in particular to a kind of more braced arch rib vertical rotating construction methods of large span.Assembled one side of something arch rib on buckstay, half of arch rib lower end is connect with the turning hinge on buckstay, the assembled installing tache tower on buckstay after the completion, the upper end of main hauling rope is connected with the main jack for buckleing tower top end is fixed on, the anchoring lower ends of main hauling rope are on first anchor point of the half of arch rib close to the upper end, the upper end of secondary hauling rope is connected with the secondary jack for buckleing tower top end is fixed on, the anchoring lower ends of secondary hauling rope are on second anchor point of the half of arch rib close to its lower end, driving master, secondary jack is according to following formula synchronous tension master, secondary hauling rope, it is rotated up half of arch rib lower end around turning hinge:Vertical transfer arch rib construction method of the invention is simple, effectively realizes the accurate adjustment of vertical transfer, improves the stability and safety of vertical transfer construction, has great promotional value.

Description

A kind of more braced arch rib vertical rotating construction methods of large span
Technical field
The present invention relates to method for bridge construction technical fields, in particular to a kind of more braced arch rib vertical transfer construction parties of large span Method.
Background technique
With the fast development that Bridges in Our Country is built, combination bridge architecture is had been more and more widely used.Buckstay is soft Property arch composite structure, so that arch is not fully exerted with the stress of beam aspect advantage, main permanent load does not cause the water to bridge pier Flat-pushing power improves bridge force-bearing performance, can effectively reduce the building height of structure, reduces project cost.With bridge scale Increasing, large span, the development characteristic of multiple arch rib is just presented in buckstay flexibility arch structure.
Buckstay flexible arch bridge using first beam rear arch, after the completion of steel truss erection on beam assembled arch rib, after vertical transfer in place The method joined the two sections of a bridge, etc in the air is a kind of economic, quickly, safe construction method.There are following for current sliding roadway arch vertical transfer construction Difficult point.
1, the vertical transfer of multiple arch rib sliding roadway arch is more due to promoting purlin piece simultaneously, compared with two panels or monolithic arch rib swivel force controlled, Acting synchronize etc. has higher requirement.
2, flexible arch rib span is big, and longitudinal rigidity is small, and swivel process deflection is big, and arch rib closure must have precise fine-adjustment Ability;Swivel process needs to monitor arch ring stress and deformation, and preventing Suo Li imbalance from causing, arch rib is turned round or local stress is excessive.
3, the size of each angle Suo Li constantly changes during swivel, to guarantee synchronization job and each Suo Li size And the stress matching of major-minor rope, it is necessary to which the speed and pressure promoted to each position jack carries out accuracy controlling.
4, Suo Li is variation always during swivel, and button tower offset is also variation, how to guarantee tower in the process It is partially also a difficult point of this class engineering no more than tolerance zone.
Such as the middle promulgated by the State Council of entitled " multi-arch bridge rib vertical turning technical method " of Patent No. " CN101200879A " Bright patent connects arch ribs by two hoist cables the patent describe a kind of method of arch rib vertical transfer, arch rib one end can along bridge to It is rotationally articulated and connected on girder, the anchoring lower ends of the free end of arch rib and a hoist cable, the anchoring that places an order of another hoist cable In the middle position of arch rib, the upper end and Sarasota junction of hoist cable are provided with jack, are acted synergistically by jack and stretch arch Rib is rotated along coercive mechanism.But in fact, how synchronous tension is to need most to consider the problems of in entire work progress, synchronous tension It is how to synchronize, how guarantees that two hauling ropes both participate in stress tensioning.Since the length and gradient of two hoist cables are all not The same, if synchronous tension, same rate tensioning, that will cause the hoist cable stress among arch rib to incrementally increase, in arch The hoist cable stress of rib free end gradually reduces, and such situation is possible to be caused by unbalance stress and destroy arch rib, it is difficult to Complete vertical transfer construction process.When practice of construction, it can only guarantee rough synchronous operation, usually slow tensioning, observation control arch The vertical transfer situation of rib, is in time adjusted jack, achievees the purpose that safe vertical transfer with this, but due to this observation only It is the determination of approximate range, can not really reacts the case where vertical transfer, therefore can not reaches and fully control two hoist cables synchronizations The effect of running is operated, when practical application still not can control the safety of arch rib vertical transfer.
Summary of the invention
Present invention aim to not can control in the existing arch rib vertical transfer for solving to mention in above-mentioned background technique construction Two hoist cables promote the problem of synchronism influences entire arch rib vertical transfer working security, provide a kind of more braced arch rib vertical transfers of large span Construction method.
The technical solution of the present invention is as follows: a kind of more braced arch rib vertical rotating construction methods of large span, it is characterised in that: in buckstay Upper assembled half of arch rib, half of arch rib lower end is connect with the turning hinge on buckstay, the assembled installing tache on buckstay after the completion Tower connects the upper end of main hauling rope with the main jack for buckleing tower top end is fixed on, and the anchoring lower ends of main hauling rope encircle in one side of something Rib is connected on first anchor point of the upper end, by the upper end of secondary hauling rope with the secondary jack for buckleing tower top end is fixed on, and pair is led The anchoring lower ends of straw line drive major and minor jack same according to following formula on the second anchor point of the half of arch rib close to its lower end The major and minor hauling rope of tensioning is walked, is rotated up half of arch rib lower end around turning hinge:
Wherein: main hauling rope length of the L-between one side of something arch rib and main jack, m;
Secondary hauling rope length between l-one side of something arch rib and secondary jack, m;
R1The distance between-turning hinge and the first anchor point, m;
R2The distance between-turning hinge and the second anchor point, m;
A-turning hinge is the distance between to main jack, m;
B-turning hinge is the distance between to secondary jack, m;
γ-turning hinge to main jack line and turning hinge to the angle between the line of secondary jack, °;
α-turning hinge to main jack line and turning hinge to the angle between the line of the first anchor point, °;
β-turning hinge to the first anchor point line and turning hinge to the angle between the line of the second anchor point, °;
Angle between the first anchor point of ε-and the line and horizontal plane of turning hinge, °;
It keeps button tower tower to be in safe range in stretching process partially, after tensioning in place, two half of arch ribs is closed up into shape At complete arch rib, flexible arch rib vertical transfer construction is completed.
Further on buckstay assembled one side of something arch rib method are as follows: built on buckstay beam face it is multiple along bridge to Spaced apart support frame, handling form on the segment to support frame of half of arch rib, and by segment, successively assembled connection formation is complete Half of arch rib.
The method that further half of arch rib lower end is connect with the turning hinge on buckstay are as follows: half of arch rib assembly is completed Afterwards, it is inserted into the first support plate of half of arch rib lower end between two pieces in turning hinge adjacent first otic placodes, it will be along horizontal cross-bridges The first rotating shaft arranged to direction passes through the through-hole on the first otic placode and the first support plate, makes half of arch rib can be around first rotating shaft axis Line is rotationally articulated and connected in turning hinge.
Further on buckstay installing tache tower method are as follows: hinged-support is installed on buckstay, handling button tower is to cutting with scissors Above support, it is inserted into the second support plate for detaining tower lower end on hinged-support between adjacent the second otic placode of two panels, it will be along horizontal horizontal The second shaft that bridge is arranged to direction passes through the through-hole on the second otic placode and the second support plate, makes button tower can be around the second shaft axis It is rotationally articulated and connected on hinged-support.
Button tower tower is kept to be in the method in safe range partially in further stretching process are as follows: button tower and hinged-support are installed After in place, dorsal funciculus is installed relative to the side of main hauling rope in button tower, the upper end of dorsal funciculus is anchored at and buckles column overhead, anchoring lower ends On being fixed on the stretch-draw jack on buckstay, make to buckle tower by tensioning dorsal funciculus and be supported on hinged-support, in stretching process, adjusts Section stretch-draw jack dynamics is that button tower tower is in safe range partially.
Two half of arch ribs are further closed up into the method to form complete arch rib are as follows: wait form the two of complete rib structure After a one side of something arch rib vertical transfer in place, handling closure segment is between two half of arch ribs, using welding or bolt by closure segment along bridge It is fixedly connected respectively with corresponding half of arch rib to both ends, forms complete rib structure.
It is further the following steps are included:
1), build support frame on buckstay, multiple support frames along bridges to arranged for interval, the segment of handling one side of something arch rib To support frame, it is connected as one adjacent segment to form complete half of arch rib by welding or bolt arrangement;
2), when half of arch rib assembly, the first support plate of half of arch rib lower end is inserted into two of the turning hinge on buckstay Between the first otic placode of block, the first rotating shaft along horizontal direction across bridge direction arrangement is worn on the first otic placode and the first support plate, is made Half of arch rib can rotationally be articulated and connected around first rotating shaft in turning hinge;
3), the second support plate for detaining tower lower end is inserted between the second otic placode of adjacent two panels of buckstay upper hinge support, The second shaft along horizontal transverse direction arrangement is worn on the second otic placode and the second support plate, turn button tower can around the second shaft It is articulated and connected dynamicly on hinged-support;
4) dorsal funciculus, is installed in the side that button tower deviates from half of arch rib, the upper end of dorsal funciculus is anchored at and buckles column overhead, under dorsal funciculus The stretch-draw jack connection on buckstay is held and is mounted on, tensioning dorsal funciculus makes to buckle tower to be supported in just with deviating to half of arch rib side On property beam;
5), major and minor hauling rope is installed, by the anchoring lower ends of main hauling rope in half of arch rib close to first anchor point of the upper end On, the upper end of main hauling rope is connect with the main jack for buckleing column overhead, and the anchoring lower ends of secondary hauling rope are close in half of arch rib On second anchor point of its lower end, the upper end of secondary hauling rope is connect with the secondary jack for buckleing column overhead;
6), drive major and minor jack according to the major and minor hauling rope of following formula synchronous tension:
Wherein: main hauling rope length of the L-between one side of something arch rib and main jack, m;
Secondary hauling rope length between l-one side of something arch rib and secondary jack, m;
R1The distance between-turning hinge and the first anchor point, m;
R2The distance between-turning hinge and the second anchor point, m;
A-turning hinge is the distance between to main jack, m;
B-turning hinge is the distance between to secondary jack, m;
γ-turning hinge to main jack line and turning hinge to the angle between the line of secondary jack, °;
α-turning hinge to main jack line and turning hinge to the angle between the line of the first anchor point, °;
β-turning hinge to the first anchor point line and turning hinge to the angle between the line of the second anchor point, °;
Angle between the first anchor point of ε-and the line and horizontal plane of turning hinge, °;
7), in stretching process, by stretch-draw jack tensioning dorsal funciculus, it is in the tower for detaining tower in safe range always partially, After half of arch rib tensioning in place, handling closure segment will be closed between the upper end of two half of arch ribs by welding or bolt arrangement Hold together section to fix with two half of arch ribs, completes the installation of arch rib.
The safe range refers to that angle is between button tower axis and the normal in the face perpendicular rigid Liang Liang- Between 0.3~0.3 °.
Advantages of the present invention has: 1, by quantifying the tensioning rate of major and minor hauling rope, the moment keeps major and minor hauling rope same When participate in tensioning stress, guarantee two hauling ropes synergistic effect tensioning one side of something arch ribs, effectively maintain the safety of arch rib vertical transfer And high efficiency;
2, by setting hinged-support, it can make to detain tower in a small range movement, to adjust hauling rope, reach stable construction Purpose, improve vertical transfer construction safety;
3, by finally assembling closure segment, the gap of two half of arch ribs can be fully taken into account, avoids the occurrence of two and half The case where side arch rib interferes appearance.
Vertical transfer arch rib construction method of the invention is simple, effectively realizes the accurate adjustment of vertical transfer, improves vertical transfer construction Stability and safety, have great promotional value.
Detailed description of the invention
Fig. 1: structural schematic diagram of the invention;
Fig. 2: major and minor jack arragement construction schematic diagram of the invention;
Fig. 3: turning hinge arragement construction schematic diagram of the invention;
Fig. 4: button tower and hinged-support arragement construction schematic diagram of the invention;
Fig. 5: half of arch rib of the invention starts the structural schematic diagram of vertical transfer;
Fig. 6: arch rib of the invention closes up schematic diagram;
Wherein: 1-buckstay;2-half of arch ribs;3-turning hinges;4-button towers;5-main hauling ropes;6-secondary hauling ropes; 7-main jack;8-secondary jack;9-the first anchor point;10-the second anchor point;11-support frames;12-the first support plate; 13-the first otic placode;14-first rotating shafts;15-hinged-supports;16-the second support plate;17-the second otic placode;18-the second turn Axis;19-dorsal funciculus;20-stretch-draw jacks;21-closure segments.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, be arragement construction schematic diagram of the invention, assembled one side of something arch rib 2, half of arch rib 2 on buckstay 1 Lower section is supported using support frame 11, is provided with jack on support frame 11, will be partly for adjusting the position of half of arch rib 2 Arch rib 2 lower end in side is connect with the turning hinge 3 on buckstay 1, and the lower end of the half of arch rib 2 of the present embodiment refers to close to corresponding button The end of 4 side of tower, upper end are the end far from corresponding button tower side.
As shown in figure 3, installing hinged-support 15 on buckstay 1, handling button tower 4 makes to detain 4 lower end of tower to 15 top of hinged-support The second support plate 16 be inserted on hinged-support 15 between adjacent the second otic placode of two panels 17, by what is arranged along horizontal direction across bridge direction Second shaft 18 passes through the through-hole on the second otic placode 17 and the second support plate 16, rotate button tower 4 can around 18 axis of the second shaft Ground is articulated and connected on hinged-support 15.
After the completion of half of 2 assembly of arch rib, the installing tache tower 4 on buckstay 1, as shown in figure 4, installing hinge on buckstay 1 Support 15, handling button tower 4 are inserted into the second support plate 16 for detaining 4 lower end of tower adjacent on hinged-support 15 to 15 top of hinged-support Between the second otic placode of two panels 17, the second shaft 18 arranged along horizontal direction across bridge direction is passed through into the second otic placode 17 and the second support Through-hole on plate 16 makes button tower 4 that can rotationally be articulated and connected around 18 axis of the second shaft on hinged-support 15.
After button tower 4 is installed, after button tower 4 is installed in place with hinged-support 15, one of tower 4 relative to main hauling rope 5 is being detained Dorsal funciculus 19 is installed in side, and the upper end of dorsal funciculus 19 is anchored at and buckles 4 tower top of tower, anchoring lower ends are in the tensioning thousand being fixed on buckstay 1 On jin top 20, makes buckle tower 4 by tensioning dorsal funciculus 19 and be supported on hinged-support 15, in stretching process, adjusting 20 power of stretch-draw jack Degree is in button 4 tower of tower in safe range partially, and the safe range of the present embodiment refers to button 4 axis of tower and 1 beam face of perpendicular rigid beam Angle is between -0.3~0.3 ° between normal.
After dorsal funciculus 19 is installed, will button tower 4 vertically tensioning be fixed on buckstay 1, by the upper end of main hauling rope 5 with The main jack 7 for being fixed on button 4 top of tower is connected, and the anchoring lower ends of main hauling rope 5 are in half of arch rib 2 close to the first of the upper end On anchor point 9, the upper end of secondary hauling rope 6 is connected with the secondary jack 8 for buckleing 4 top of tower is fixed on, the anchoring lower ends of secondary hauling rope 6 On second anchor point 10 of the half of arch rib 2 close to its lower end, drive major and minor jack major and minor according to following formula synchronous tension Hauling rope is rotated up half of 2 lower end of arch rib around turning hinge 3:
Wherein: main hauling rope 5 length of the L-between one side of something arch rib 2 and main jack 7, m;
6 length of secondary hauling rope between l-one side of something arch rib 2 and secondary jack 8, m;
R1The distance between-turning hinge 3 and the first anchor point 9, such as Fig. 1, m;
R2The distance between-turning hinge 3 and the second anchor point 10, such as Fig. 1, m;
A-turning hinge 3 arrives the distance between main jack 7, such as Fig. 1, m;
B-turning hinge 3 arrives the distance between secondary jack 8, such as Fig. 1, m;
The line and turning hinge 3 of γ-turning hinge 3 to main jack 7 arrive the angle between the line of secondary jack 8, such as Fig. 1, °;
α-turning hinge 3 to main jack 7 line and the 3 to the first anchor point of turning hinge 9 line between angle, such as Fig. 1, °;
Angle between the line of the 3 to the first anchor point of β-turning hinge 9 and the line of the 3 to the second anchor point of turning hinge 10, such as Fig. 1, °;
The first anchor point of ε -9 and the angle between the line and horizontal plane of turning hinge 3, °;
It keeps button 4 tower of tower to be in safe range in stretching process partially, after tensioning in place, two half of arch ribs 2 is closed up Complete arch rib is formed, flexible arch rib vertical transfer construction is completed.
During practice of construction, major and minor jack and turning hinge 3 are fixed point, distance, the turning hinge of the 3 to the first anchor point of turning hinge 9 The distance between the distance of 3 to the second anchor point 10 and two anchor points are fixed and invariable, therefore the R in above-mentioned formula1、R2、A、 B, γ, β and ε are definite value, are constant, variate L, l and α in the construction process, therefore above-mentioned formula can regard L and l as Ratio and α linear function.
Concrete construction method are as follows: 1, build support frame 11 on buckstay 1, multiple support frames 11 along bridge to interval cloth It sets, on the segment to support frame 11 of handling one side of something arch rib 2, adjacent segment is connected as one and to be formed by welding or bolt arrangement Complete one side of something arch rib 2;
2, when half of arch rib 2 is assembled, the first support plate 12 of half of 2 lower end of arch rib is inserted into the turning hinge 3 on buckstay 1 Two piece of first otic placode 13 between, the along horizontal direction across bridge direction arrangement is worn on the first otic placode 13 and the first support plate 12 One shaft 14 makes half of arch rib 2 that can rotationally be articulated and connected around first rotating shaft 14 in turning hinge 3;
3, the second support plate 16 for detaining 4 lower end of tower is inserted into the second otic placode of adjacent two panels of 1 upper hinge support 15 of buckstay Between 17, the second shaft 18 along horizontal transverse direction arrangement is worn on the second otic placode 17 and the second support plate 16, makes to detain tower 4 It can rotationally be articulated and connected around the second shaft 18 on hinged-support 15;
4, dorsal funciculus 19 is installed in the side that button tower 4 deviates from half of arch rib 2, the upper end of dorsal funciculus 19 is anchored at and buckles 4 tower top of tower, 19 lower end of dorsal funciculus is connect with the stretch-draw jack 20 being mounted on buckstay 1, and tensioning dorsal funciculus 19 makes to buckle tower 4 to half of arch rib 2 one It offsets to the side and is supported on buckstay 1;
5, major and minor hauling rope is installed, by the anchoring lower ends of main hauling rope 5 in half of arch rib 2 close to first anchor of the upper end On point 9, the upper end of main hauling rope 5 is connect with the main jack 7 for buckleing 4 tower top of tower, and the anchoring lower ends of secondary hauling rope 6 are encircleed in one side of something On the second anchor point 10 of its lower end, the upper end of secondary hauling rope 6 is connect rib 2 with the secondary jack 8 for buckleing 4 tower top of tower;
6, drive major and minor jack according to the major and minor hauling rope of above-mentioned formula synchronous tension:
7, in stretching process, by 20 tensioning dorsal funciculus 19 of stretch-draw jack, make the tower for detaining tower 4 partially always in safe range It is interior, after half of 2 tensioning in place of arch rib, between the upper end of handling closure segment 21 to two half of arch ribs 2, pass through welding or bolt knot Structure is fixed by closure segment 2 and two half of arch ribs 2, completes the installation of arch rib.
The hauling rope of the present embodiment and the connecting portion for buckleing tower 4 and half of arch rib 2 are rotationally to be articulated and connected, so as to Preferably adapt to the variation of angle in actual use.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent defines.

Claims (8)

1. a kind of more braced arch rib vertical rotating construction methods of large span, assembled one side of something arch rib (2) on buckstay (1), by half of arch rib (2) lower end is connect with the turning hinge (3) on buckstay (1), the assembled installing tache tower (4) on buckstay (1) after the completion, by main traction The upper end of rope (5) is connected with the main jack (7) for being fixed on button tower (4) top, and the anchoring lower ends of main hauling rope (5) encircle in one side of something Rib (2) buckles the secondary very heavy of tower (4) top with being fixed on first anchor point (9) of the upper end, by the upper end of secondary hauling rope (6) (8) series connection is pushed up, the anchoring lower ends of secondary hauling rope (6) are on the second anchor point (10) of half of arch rib (2) its close lower end, feature It is: drives major and minor jack according to the major and minor hauling rope of following formula synchronous tension, make half of arch rib (2) lower end around turning hinge (3) it is rotated up:
Wherein: main hauling rope (5) length of L-between one side of something arch rib (2) and main jack (7), m;
Secondary hauling rope (6) length between l-one side of something arch rib (2) and secondary jack (8), m;
R1The distance between-turning hinge (3) and the first anchor point (9), m;
R2The distance between-turning hinge (3) and the second anchor point (10), m;
A-turning hinge (3) arrives the distance between main jack (7), m;
B-turning hinge (3) arrives the distance between secondary jack (8), m;
The line and turning hinge (3) of γ-turning hinge (3) to main jack (7) arrive the angle between the line of secondary jack (8), °;
α-turning hinge (3) to main jack (7) line and turning hinge (3) to the angle between the line of the first anchor point (9), °;
β-turning hinge (3) to the first anchor point (9) line and turning hinge (3) to the angle between the line of the second anchor point (10), °;
Angle between the first anchor point of ε-(9) and the line and horizontal plane of turning hinge (3), °;
It keeps button tower (4) tower to be in safe range in stretching process partially, after tensioning in place, two half of arch ribs (2) is closed up Complete arch rib is formed, flexible arch rib vertical transfer construction is completed.
2. a kind of more braced arch rib vertical rotating construction methods of large span as described in claim 1, it is characterised in that: in buckstay (1) The method of upper assembled half of arch rib (2) are as follows: buckstay (1) Liang Mianshang build it is multiple along bridge to spaced apart support frame (11), handling forms on the segment to support frame (11) of half of arch rib (2), and by segment, successively assembled connection formation is complete half of Arch rib (2).
3. a kind of more braced arch rib vertical rotating construction methods of large span as described in claim 1, it is characterised in that: by half of arch rib (2) method that lower end is connect with the turning hinge (3) on buckstay (1) are as follows: after the completion of half of arch rib (2) is assembled, make half of arch rib (2) It, will be along horizontal direction across bridge between two pieces of adjacent first otic placodes (13) that the first support plate (12) of lower end is inserted on turning hinge (3) The first rotating shaft (14) of direction arrangement passes through the through-hole on the first otic placode (13) and the first support plate (12), makes half of arch rib (2) It can rotationally be articulated and connected around first rotating shaft (14) axis on turning hinge (3).
4. a kind of more braced arch rib vertical rotating construction methods of large span as described in claim 1, it is characterised in that: in buckstay (1) The method of upper installing tache tower (4) are as follows: hinged-support (15) are installed on buckstay (1), on handling button tower (4) to hinged-support (15) Side is inserted into the second support plate (16) for detaining tower (4) lower end on hinged-support (15) between adjacent the second otic placode of two panels (17), will The through-hole on the second otic placode (17) and the second support plate (16) is passed through along the second shaft (18) of horizontal direction across bridge direction arrangement, is made Button tower (4) can rotationally be articulated and connected around the second shaft (18) axis on hinged-support (15).
5. a kind of more braced arch rib vertical rotating construction methods of large span as described in claim 1, it is characterised in that: protected in stretching process Hold the method that button tower (4) tower is in partially in safe range are as follows: after button tower (4) is installed in place with hinged-support (15), in button tower (4) phase Dorsal funciculus (19) are installed for the side of main hauling rope (5), the upper end of dorsal funciculus (19) is anchored at and buckles tower (4) tower top, anchoring lower ends On the stretch-draw jack (20) being fixed on buckstay (1), makes to buckle tower (4) by tensioning dorsal funciculus (19) and be supported in hinged-support (15) on, in stretching process, stretch-draw jack (20) dynamics of adjusting is in button tower (4) tower in safe range partially.
6. a kind of more braced arch rib vertical rotating construction methods of large span as described in claim 1, it is characterised in that: by two half of arches Rib (2) closes up the method to form complete arch rib are as follows: after two half of arch rib (2) vertical transfers in place wait form complete rib structure, Handling closure segment (21) between two half of arch ribs (2), using bolt by closure segment (21) along bridge to both ends respectively with it is corresponding Half of arch rib (2) be fixedly connected, form complete rib structure.
7. a kind of more braced arch rib vertical rotating construction methods of large span as described in claim 1, it is characterised in that: including following step It is rapid:
1) it, is built on buckstay (1) support frame (11), multiple support frames (11) are along bridge, to arranged for interval, handling one side of something encircles On the segment of rib (2) to support frame (11), it is connected as one adjacent segment to form complete half by welding or bolt arrangement Side arch rib (2);
2) when, half of arch rib (2) is assembled, first support plate (12) of half of arch rib (2) lower end is inserted on buckstay (1) Between two piece of first otic placode (13) of turning hinge (3), wear on the first otic placode (13) and the first support plate (12) along horizontal cross-bridges The first rotating shaft (14) arranged to direction, makes half of arch rib (2) that can rotationally be articulated and connected around first rotating shaft (14) in turning hinge (3) On;
3), the second support plate (16) for detaining tower (4) lower end is inserted into the adjacent two panels second of buckstay (1) upper hinge support (15) Between otic placode (17), the second shaft along horizontal transverse direction arrangement is worn on the second otic placode (17) and the second support plate (16) (18), make button tower (4) that can rotationally be articulated and connected around the second shaft (18) on hinged-support (15);
4) dorsal funciculus (19), are installed in the side that button tower (4) deviates from half of arch rib (2), the upper end of dorsal funciculus (19) is anchored at and buckles tower (4) tower top, dorsal funciculus (19) lower end are connect with the stretch-draw jack (20) being mounted on buckstay (1), and tensioning dorsal funciculus (19) makes to buckle Tower (4) is supported on buckstay (1) with deviating to half of arch rib (2) side;
5), major and minor hauling rope is installed, by the anchoring lower ends of main hauling rope (5) in half of arch rib (2) close to first anchor of the upper end On point (9), the upper end of main hauling rope (5) is connect with the main jack (7) for buckleing tower (4) tower top, by the lower end anchor of secondary hauling rope (6) Gu on second anchor point (10) of half of arch rib (2) close to its lower end, the upper end of secondary hauling rope (6) and the pair for buckleing tower (4) tower top Jack (8) connection;
6), drive major and minor jack according to the major and minor hauling rope of following formula synchronous tension:
Wherein: main hauling rope (5) length of L-between one side of something arch rib (2) and main jack (7), m;
Secondary hauling rope (6) length between l-one side of something arch rib (2) and secondary jack (8), m;
R1The distance between-turning hinge (3) and the first anchor point (9), m;
R2The distance between-turning hinge (3) and the second anchor point (10), m;
A-turning hinge (3) arrives the distance between main jack (7), m;
B-turning hinge (3) arrives the distance between secondary jack (8), m;
The line and turning hinge (3) of γ-turning hinge (3) to main jack (7) arrive the angle between the line of secondary jack (8), °;
α-turning hinge (3) to main jack (7) line and turning hinge (3) to the angle between the line of the first anchor point (9), °;
β-turning hinge (3) to the first anchor point (9) line and turning hinge (3) to the angle between the line of the second anchor point (10), °;
Angle between the first anchor point of ε-(9) and the line and horizontal plane of turning hinge (3), °;
7), in stretching process, by stretch-draw jack (20) tensioning dorsal funciculus (19), make the tower for detaining tower (4) partially always in safety In range, after half of arch rib (2) tensioning in place, handling closure segment (21) passes through weldering between the upper end of two half of arch ribs (2) It connects or bolt arrangement is fixed by closure segment (2) and two half of arch ribs (2), complete the installation of arch rib.
8. the more braced arch rib vertical rotating construction methods of a kind of large span as described in claim 1,5 or 7, it is characterised in that: described Safe range refers to that angle is between -0.3~0.3 ° between button tower (4) axis and the normal in perpendicular rigid beam (1) beam face.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201731881U (en) * 2010-07-14 2011-02-02 腾达建设集团股份有限公司 Bridge arch rib vertical rotation deviation measurement device
CN102561207A (en) * 2010-12-31 2012-07-11 中铁工程设计咨询集团有限公司 Construction method for vertically rotating arch rib
CN104328740A (en) * 2014-11-10 2015-02-04 中铁武桥重工(珠海)有限公司 Large-span steel tubular arched bridge vertical rotation construction and linear control method
CN104612058A (en) * 2014-12-26 2015-05-13 中铁大桥勘测设计院集团有限公司 Construction method of flexible arch bridge with rigid beams
JP2017048612A (en) * 2015-09-02 2017-03-09 三井住友建設株式会社 Bridging method of arch bridge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201731881U (en) * 2010-07-14 2011-02-02 腾达建设集团股份有限公司 Bridge arch rib vertical rotation deviation measurement device
CN102561207A (en) * 2010-12-31 2012-07-11 中铁工程设计咨询集团有限公司 Construction method for vertically rotating arch rib
CN104328740A (en) * 2014-11-10 2015-02-04 中铁武桥重工(珠海)有限公司 Large-span steel tubular arched bridge vertical rotation construction and linear control method
CN104612058A (en) * 2014-12-26 2015-05-13 中铁大桥勘测设计院集团有限公司 Construction method of flexible arch bridge with rigid beams
JP2017048612A (en) * 2015-09-02 2017-03-09 三井住友建設株式会社 Bridging method of arch bridge

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