CN100381641C - Widened box girder, apposite boardelevated road, its manufacturing and maintaining method thereof - Google Patents
Widened box girder, apposite boardelevated road, its manufacturing and maintaining method thereof Download PDFInfo
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- CN100381641C CN100381641C CNB2004100170386A CN200410017038A CN100381641C CN 100381641 C CN100381641 C CN 100381641C CN B2004100170386 A CNB2004100170386 A CN B2004100170386A CN 200410017038 A CN200410017038 A CN 200410017038A CN 100381641 C CN100381641 C CN 100381641C
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Abstract
The present invention provides a box girder (400) which comprises two or a plurality of wide box girders (1) and/or narrow box girders (2) which are respectively provided with upper surfaces used for bearing a bridge surface plate, and the wide box girders (1) and/or the narrow box girders (2) are extended into a straight line along the transverse direction. The present invention is characterized in that a T-shaped connecting member (3) is arranged between two adjacent box girders along the transverse direction, one end (4) of an upper transverse part (6) of the T-shaped connecting member (3) is overlapped on the upper surface of one box girder, the other end (4') of the upper transverse part (6) of the T-shaped connecting member (3) is overlapped on the upper surface of the other adjacent box girder, and a lower vertical part (5) of the T-shaped connecting member (3) is filled in the free distance between the two box girders. The present invention also provides a combined board segment elevated road using the box girder (400) and a maintenance method of the combined board segment elevated road.
Description
Technical field
The present invention relates to a kind of case beam of widening, also relate to and a kind ofly widen the apposite boardelevated road elevated road that the case beam makes and the manufacture method and the maintenance method of described elevated road by this.
Background technology
Growing along with economy, the plane traffic more and more is difficult to meet the demands, and therefore, traffic congestion is alleviated by the development multilevel traffic in many big and medium-sized cities.Elevated road is exactly a kind of multilevel traffic mode of using always.
Along with the population increase of (comprising recurrent population and permanent resident population), but the city development space is narrow day by day, thereby elevated road has been proposed new requirement, promptly guarantee to require under the unobstructed prerequisite of traffic that this elevated road takes up an area of less, good looking appearance or the like.
In addition,, new requirement has been proposed also for the construction of elevated road: promptly answer civilized construction, do not influence or influence less as far as possible near the traffic in building site, little etc. to the influence of environment along with development economic and society.The method of watering is smash at the existing road construction method scene of adopting mostly, and this method need be built steel pipe scaffold, assembled formwork and scene at the scene and be carried out concrete and smash and water.Obviously it since floor space greatly, the Dust Capacity of long construction period and generation is difficult to meet the demands greatly.
For the defective that overcomes prior art and satisfy above-mentioned requirements, the job practices of proposed already that batch production is prefabricated, on-site consolidation, bridge formation frame being established.
Elevated road substantially by column, place bearing on the column, place the horizontal case beam on the bearing and the vertical box beam that is erected between adjacent two horizontal case beams is formed, described case beam is prefabricated by template in factory.Because costing an arm and a leg of described template therefore for the Control Engineering cost, can not be purchased the template of a large amount of different sizes in an engineering, the template specification that can adopt is limited.
According to designing requirement, elevated road generally has certain width n
1, this width (being also referred to as the main deck width) generally can satisfy the requirement in for example two-way 4 tracks or 6 tracks.When making the elevated road of this width, can adopt width is m
1Its case beam of template build (below be referred to as wide case beam).
Elevated road can have ring road or the optional band that stops in emergency up and down inevitably.Ring road has and is different from described width n up and down
1Width n
2Can adopt width when making described ring road is m
2Template make its case beam (below be referred to as narrow case beam).
For the consideration in the traffic, at the connecting place of last ring road and/or following ring road and main deck, the width of elevated road is usually greater than main deck width n
1With ring road width n
2Sum (n
1+ n
2).The highway section in the ring road or the district of stopping in emergency can require to change having a lot of social connections inevitably about elevated road had.The highway section of ring road on having for example, require from last ring road and road surface, main deck joint by wide (be that width is greater than n
1+ n
2) to narrow variation, until reaching above-mentioned main deck width n
1In the art, this road surface is called " apposite boardelevated road " by wide to narrow variation or by narrow highway section to wide variation.In order to satisfy traffic safety and visual requirement, prior art adopts the method that bridge deck width is narrowed down gradually from last ring road and main deck junction.When making the apposite boardelevated road of this gradual change of having a lot of social connections, the scene of can adopting smashes the method for watering, adopt case beam that batch production makes width gradual change subsequently on-site consolidation method or adopt the method for steel structure assembling.
But all there is defective in above-mentioned existing method.For example, the method for watering is smash at the scene needs steel pipe scaffold, this method long construction period, influence traffic and since the generation dust influence environment, do not meet the requirement of civilized construction; Though the case beam of the employing batch production making width gradual change method of on-site consolidation has subsequently overcome on-the-spot defective of smashing the method for watering, it need adopt the template of various width gradual changes.There are two major defects in this method: at first, it needs the template of all size, because template costs an arm and a leg, has therefore improved construction costs inevitably; Secondly, it needs width greater than n at least
1+ n
2Template make width and close the case beam that symbol requires, when ring road is in same highway section up and down, it in addition need width greater than n
1+ 2n
2Super wide case beam, need oversize vehicle to transport the scene to after this super wide case beam is made, very high to transportation and equipment requirement.In addition, thus because the apposite boardelevated road elevated road needs certain link length so that make width generation gradual change satisfy the requirement of traffic safety, therefore, if all adopt the apposite boardelevated road of steel work, then its cost can highly must be difficult to accept.
Therefore, need a kind of method of existing equipment manufacturing apposite boardelevated road elevated road of utilizing to improve template m
1And m
2Utilization rate.
The content of invention
The objective of the invention is in the elevated road construction, to improve template m
1And m
2Utilization rate to reduce the cost of engineering.
Therefore, the invention provides a kind of case beam of widening, it comprises two or more wide case beam and/or narrow case beams that have the upper surface of carrying bridge deck separately, described wide case beam and/or narrow case beam are along horizontal expansion in line, it is characterized in that between the laterally adjacent case beam in two edges, having a T-connecting piece, one end of the upper transverse part of this T-connecting piece is overlapped on the upper surface of a case beam, the other end is overlapped on the upper surface of another adjacent case beam, and the space between the described case beam is filled in vertical part under it.
The present invention also provides a kind of apposite boardelevated road elevated road, it is made up of the apposite boardelevated road elevated road of run-in index apposite boardelevated road elevated road and width gradual change, described run-in index apposite boardelevated road elevated road comprises column, place the horizontal case beam of widening on the column and be erected at vertical box beam between this horizontal case beam of widening, it is characterized in that described horizontal case beam of widening and vertical box beam are basic separately by a wide case beam that is used to support main deck, one or two is along the described wide case beam horizontal expansion narrow case beam and the composition of the T-connecting piece between adjacent two case beams that are used to support ring road in line.
Described wide case beam and narrow case beam include a upper surface that is used to carry pavement of road, one end of described T-connecting piece upper transverse part is overlapped on the upper surface of wide case beam, the other end is overlapped on the upper surface of narrow case beam, and the gap between described wide case beam and the narrow case beam is filled in following vertical part.
The present invention also provides a kind of manufacture method of run-in index apposite boardelevated road elevated road, and it comprises the steps:
According to required road width two or three columns that extend along road width of interval formation with regulation;
The narrow case beam of the wide case beam of a horizontal expansion of each self-forming and one or two horizontal expansion on described two or three root posts, the width of described wide case beam and narrow case beam extends in line along road width, and described wide horizontal case beam and narrow horizontal case beam include the upper surface that is used to carry road slab;
Along the wide case beam or the narrow case beam that lift longitudinal extension between the narrow case beam of the wide case beam of adjacent two horizontal expansions of elevated road bearing of trend or adjacent two horizontal expansions separately;
Between each adjacent along the elevated road width is to wide case beam and narrow case beam, form a T-connecting piece, its down the width of vertical part make it to be placed in the gap between described two case beams, the height of following vertical part is substantially equal to the height of described wide case beam and narrow case beam end; One end of described T-connecting piece upper transverse part is overlapped on the upper surface of wide case beam, and the other end is overlapped on along on the upper surface of laterally adjacent narrow case beam, thereby makes it fill gap between wide case beam and the narrow case beam in vertical part down.
Manufacture method of the present invention also is included in the step that forms road slab on the case beam.
The present invention also provides a kind of maintenance method of run-in index apposite boardelevated road elevated road of the present invention, and it comprises the steps:
1) sets column sedimentation early warning value;
2) periodic measurement is used to support two or the settlement difference of three root posts of the same case beam of widening;
3) when described settlement difference reaches described early warning value, the height of regulating bearing is to control described wide case beam, described narrow case beam and to place the internal force of the T-connecting piece between above-mentioned wide case beam and the narrow case beam.
Description of drawings
Illustrate in greater detail the present invention below in conjunction with accompanying drawing.In the accompanying drawings:
Fig. 1 is the phantom drawing of elevated road of the present invention;
Fig. 2 is the vertical view of elevated road of the present invention;
Fig. 3 is the enlarged diagram of Fig. 1 road case beam;
Fig. 4 is the schematic diagram of the amplification of T-connecting piece of the present invention;
Fig. 5 is the schematic diagram of existing super wide case beam.
The specific embodiment
A. definition
Horizontal case beam: refer to along what the elevated road width extended be bearing in case beam on the pillar;
Vertical box beam: refer to place between adjacent two horizontal case beams and scurry the case beam that is connected together, horizontal case beam, place and scurry a plurality of vertical box beams that connect by cable wire between the horizontal case beam and the column that supports horizontal case beam constituted elevated road bridge floor supporting system by for example cable wire and horizontal case beam;
Horizontal or the width of horizontal case beam or vertical box beam: refer to the direction that the case beam extends along elevated road horizontal (width);
T-connecting piece: refer to be used to connect in the run-in index apposite boardelevated road along two laterally adjacent case beams and the connector with T shape shape, it has upper transverse part and following vertical part;
The width of T-connecting piece: the size that refers to or width T-connecting piece horizontal along the case beam;
Wide case beam: the horizontal case beam or the vertical box beam that refer to be used to make conventional road width;
Narrow case beam: the horizontal case beam or the vertical box beam that refer to be used to make ring road;
Super wide case beam: finger widths surpasses the case beam of the width sum of the width of a wide case beam and a narrow case beam;
Apposite boardelevated road: refer to owing to ring road is set and/or the band that stops in emergency, thereby make elevated road become extraordinary width or become the highway section of normal width by extraordinary width by normal width;
The run-in index apposite boardelevated road: refer to be arranged in the highway section that apposite boardelevated road has extraordinary width, the width in this highway section is roughly kept in balance;
The highway section of normal width: finger widths can guarantee the highway section that vehicle is normally current, the highway section in for example two-way 4-8 track, corresponding with it, term " highway section of extraordinary width " is meant owing to increase ring road and/or the band that stops in emergency etc. makes road width surpass the highway section of normal width;
The apposite boardelevated road of width gradual change: refer to be arranged in the highway section that apposite boardelevated road is used to connect described run-in index apposite boardelevated road and normal width elevated road;
B. case beam of widening and run-in index apposite boardelevated road elevated road
Have the multiple case beam that is used for apposite boardelevated road in the prior art, but any case beam no matter, and it all has identical design principle.For example, what Fig. 5 showed is a kind of typical existing super wide case beam, and its shape is similar to the wide case beam or the narrow case beam of amplification, it has been generally acknowledged that the case beam that has only this shape just can bear the deadweight of bridge and the gravity that vehicle applies.
The inventor is through big quantity research, and discovery is not to have only this case beam shape could satisfy the requirement of elevated road.Based on described research, the inventor has proposed the present invention.
The invention provides a kind of case beam of widening 400, as shown in Figure 3 and Figure 4, it comprises two or more wide case beam 1 and/or narrow case beams 2 that have the upper surface of carrying bridge deck separately, described wide case beam 1 and/or narrow case beam 2 are along horizontal expansion in line, it is characterized in that between the laterally adjacent case beam 1 and 2 in two edges, having a T-connecting piece 3, one end 4 of the upper transverse part 6 of this T-connecting piece 3 is overlapped on the upper surface of a case beam, the other end 4 ' is overlapped on the upper surface of another adjacent case beam, and it is the space between the described case beam of vertical part 5 fillings down.
Illustrate in greater detail the case beam that the present invention widens below in conjunction with run-in index apposite boardelevated road elevated road of the present invention.
Existing apposite boardelevated road elevated road often is designed to the apposite boardelevated road of road gradual change, and this apposite boardelevated road road design is reasonable, the outward appearance grace.Shown in Figure 1 is the schematic diagram of elevated road, and it comprises apposite boardelevated road 100.As shown in the figure, when not considering dash area, the apposite boardelevated road elevated road that described apposite boardelevated road 100 is a kind of gradual changes of having a lot of social connections.This apposite boardelevated road has certain length, and its length is crossed over 4 groups of distances between the column in Fig. 1.
But the defective of this apposite boardelevated road is the cast-in-site construction method that needs to influence traffic, perhaps needs the template of various width to come prefabricated suitable case beam.If do not adopt steel work in order in construction, not influence traffic, then can greatly promote cost.
In order to be beneficial to existing equipment to greatest extent, the inventor has proposed a kind of apposite boardelevated road elevated road of novelty, as shown in Figure 1, apposite boardelevated road elevated road 100 of the present invention is made up of the apposite boardelevated road elevated road 300 of run-in index apposite boardelevated road elevated road 200 and width gradual change, described run-in index apposite boardelevated road elevated road 200 comprises column 11, place the case beam of widening 400 (being horizontal case beam) on the column and be erected at, it is characterized in that described horizontal case beam of widening and vertical box beam are basic separately by a wide case beam 1 that is used to support main deck along the vertical box beam between two adjacent horizontal case beams of widening of elevated road length direction, one or two is along the described wide case beam 1 horizontal expansion narrow case beam 2 and 3 compositions of the T-connecting piece between adjacent two case beams that are used to support ring road in line.
Described wide case beam 1 and narrow case beam 2 include a upper surface that is used to carry pavement of road, one end 4 of described T-connecting piece upper transverse part 6 is overlapped on the upper surface of wide case beam 1, the other end 4 ' is overlapped on the upper surface of narrow case beam 2, the gap that fill between described wide case beam 1 and the narrow case beam 2 following vertical part 5.
The apposite boardelevated road elevated road 300 of width gradual change of the present invention is for example formed by steel structure assembling, adopt the inventive method can advantageously shorten the length that adopts the steel work highway section, thereby both guaranteed the requirement of " construction influences traffic less ", controlled construction costs again.
Run-in index apposite boardelevated road elevated road of the present invention is mainly used in the highway section that for example has the ring road up and down or the band that stops in emergency, and is therefore having on one the ring road or the highway section of ring road down, and the width of described run-in index apposite boardelevated road is greater than the width n of a main deck
1With a ring road width n
2Sum (n
1+ n
2); Have a highway section of going up a ring road and a following ring road at the same time, the width of described apposite boardelevated road is greater than the width n of a main deck
1Width 2n with two ring roads
2Sum (n
1+ 2n
2).
The present invention is not limited to by a wide case beam 1 and the case beam 400 of widening that narrow case beam 2 forms by a T-connecting piece 3.At one preferably in the example of the present invention, the described case beam of widening 400 comprise a plurality of be bearing in separately on the pillar by template m
1Or m
2The case beam that forms, and the T-connecting piece between two laterally adjacent case beams of edge.
Fig. 4 has provided the schematic diagram of T-connecting piece 3 of the present invention.As shown in the figure, T-connecting piece 3 of the present invention comprises upper transverse part 6 and following vertical part 5.The height of vertical part generally equals the height of described wide case beam 1 and/or narrow case beam 2 lateral ends under this connector.The width of upper transverse part 6 depends on the spacing between wide case beam 1 and the narrow case beam 2, that is to say, it can be any width, as long as it can connect described wide case beam and narrow case beam securely.In the present invention, term " firmly connection " is meant a kind of like this connected mode, and promptly this T-connecting piece can couple together wide case beam and narrow case beam, forms the case beam of widening that intensity adheres to specification.
The height of T-connecting piece upper transverse part 6 (being the height of the end face 21 of the end face 20 of its outstanding wide case beam 1 or narrow case beam 2) except that the intensity of the case beam that should guarantee finally to widen, also should not influence the planarization on whole elevated road road surface.In a better example of the present invention, described height is suitable with the thickness of the reinforced concrete bridge deck plate of laying on the case top surface of the beam, thereby the layer of concrete upper surface on the case top surface of the beam and the upper surface of T-connecting piece roughly are on the plane, in order to avoid the pitch that influence is laid on described upper surface or the planarization of layer of concrete.。
The length of the following vertical part of T-connecting piece can be length arbitrarily, as long as it can connect described wide case beam 1 and narrow case beam 2 securely.In the present invention, term " length of following vertical part " the following top that is meant vertical part under the T shape to the distance of upper transverse part connecting place.But from attractive in appearance and economic angle, the height of this time vertical part better corresponding to the height of wide case beam and/or narrow case beam end, promptly better align with wide case beam or narrow case beam end by its lower end.The width of described down vertical part should make it to be placed in the gap between wide case beam 1 and the narrow case beam 2 and connected adjacent tight contact.In better example of the present invention, the width of vertical part is a 0.5-4.5 rice under the described T-connecting piece.
T-connecting piece of the present invention can adopt the material of this area routine to make.For example, it can be formed by steel structure assembling, also can be formed by the steel concrete cast.In a better example of the present invention, use be the T-connecting piece of steel concrete cast.
In sum, the present invention has overcome the technology prejudice of this area, and promptly the case beam must have shape as shown in Figure 5, utilizes T-connecting piece that wide case beam and narrow case beam are coupled together, and forms the case beam of widening.The result has improved the utilization rate of existing box-beam plate.Disturb less under the prerequisite of traffic in construction, shortened the length in steel work highway section, saved construction costs.
C. the manufacture method of elevated road of the present invention
The manufacture method of elevated road of the present invention comprises the steps:
1) interval with regulation forms two or many root posts.The width on elevated road road surface is depended at the interval of described regulation.Those of ordinary skill in the art can easily determine the interval between the described column as requested; In a better example of the present invention, described column comprises two root posts, and one is used to support 1, one on wide case beam and is used to support described narrow case beam 2;
2) each self-forming is along the horizontal case beam of road horizontal expansion on described two or many root posts, and described horizontal case beam includes the upper surface that is used to carry road slab; In a better example of the present invention, described horizontal case beam comprises two horizontal case beams, i.e. a wide horizontal case beam and a narrow horizontal case beam; In order to form the case beam of widening, those of ordinary skill in the art is understood that each case beam that is formed on each root post should arrange in line along its length direction, so that adopt T-connecting piece to connect;
3) a plurality of vertical box beams of each self-forming between adjacent along the bearing of trend of elevated road two wide horizontal case beams and two narrow horizontal case beams, thus two elevated road spaced apart from each other formed;
4) between two laterally adjacent case beams of every pair of edge, form T-connecting piece; The width of the following vertical part of described T-connecting piece makes it to be placed in the gap between adjacent two case beams;
5) end of described T-connecting piece upper transverse part is overlapped on the upper surface of a case beam, the other end is overlapped on the upper surface of another adjacent case beam, thereby makes it down fill gap between adjacent two wide casees in vertical part.In a better example of the present invention, described adjacent two case beams are a wide case beam and a narrow case beam, and described T-connecting piece is filled the gap between described wide case beam and the narrow case beam;
6) form the apposite boardelevated road of the gradual change of having a lot of social connections in the junction in run-in index apposite boardelevated road and conventional highway section.
In a better example of the present invention, before applying described T-connecting piece, measure the sedimentation value of the described a plurality of case beams (for example a wide case beam and a narrow case beam) that are used to form the same case beam of widening earlier, the height of regulating bearing after reaching settlement stability makes two case beams be in same horizontal level, applies this T-connecting piece subsequently again.
In the present invention, term " settlement stability " is meant that sedimentation is less than 1mm in one month.
In another better example of the present invention, described T-connecting piece is formed by the steel concrete cast.Before applying T-connecting piece earlier with adjacent two case beams (in a better example of the present invention, described adjacent two case beams are a described wide case beam and a described narrow case beam) two relative surface cutter hairs, so that the bonding strength of raising and T-connecting piece.
C. the maintenance method of elevated road of the present invention
The maintenance method of run-in index apposite boardelevated road elevated road of the present invention comprises the steps:
1) sets column sedimentation early warning value; This early warning value depends on the factors such as material of T-connecting piece.In a better example of the present invention, this early warning value is set at 4mm.
2) periodic measurement is used to support two or the settlement difference of many root posts of the same case beam of widening; The cycle of settlement measurement is for example relevant with the geological condition of this locality.Be easy to generate under the geological conditions of sedimentation, the frequency of measuring sedimentation should be higher than the geological conditions that is not easy to produce sedimentation.In a better example of the present invention, the cycle of settlement measurement is set at three months.
3) when described settlement difference reaches described early warning value, regulate and be arranged on the height of the bearing on the described pillar to control the internal force of described many case beams and described T-connecting piece.In a better example of the present invention, described bearing links to each other by bolt with pillar.Therefore, when settlement difference reaches early warning value, can unclamp bolt, the horizontal level of regulating between described a plurality of case beam with for example jack concerns, thereby eliminates the stress that is applied on the T-connecting piece.
In a better example of the present invention, described maintenance method begins to extend to engineering operation overall process by pile foundation construction, and promptly it comprises the steps:
1) height of observation column before superstructure is set up;
2) superstructure is measured each column sedimentation initial value after setting up and finishing the super wide case beam of formation the present invention immediately, continuous measurement subsequently 3 times, each 1 month at interval;
3) each season in continuous 3 season is measured a column sedimentation situation;
4) the annual subsequently sedimentation value of measuring a column.
Further specify the present invention below in conjunction with embodiment.
Embodiment 1
One group of column is set to simulate ring road apposite boardelevated road situation at the experimental area along the bearing of trend of elevated road.On column, lift respectively wide be 25 meters wide case beam and wide be 8 meters narrow case beam.Between the end of end of the wide case beam of apposite boardelevated road and the case of the adjacent narrow with it beam that extends along its width, be 4.5 meters apart.
To the assembly unit section box girder, each self-forming is wide, narrow two, at a distance of 4.5 meters elevated road along vertical bridge.
Observe the sedimentation situation of two overhead road case beams.
After reaching settlement stability, between two elevated road that form, build T-connecting piece with steel concrete.
On the apposite boardelevated road that forms, simulate the load carrying behaviour of even in everyday situations with the chamber beam with load-carrying vehicle.The case beam does not take place and produces situations such as crack in the test through 6 months.
Repeat the step of embodiment 1, but between the end of end of the wide case beam of apposite boardelevated road and the adjacent narrow case beam that extends along its width, be 0.5 meter apart.Situations such as case beam cracking also do not take place in the result at 6 months experimental period.
In conjunction with the situation of last ring road the present invention is described in detail above.But should be appreciated that the present invention also applicable to for example descend ring road, the district and comprise the up and down situation of ring road simultaneously of stopping in emergency.In addition, those of ordinary skill in the art can easily carry out various changes and modifications to it after having read content disclosed by the invention, therefore, present invention resides in all these changes and improvements in the claims scope.
Claims (9)
1. a case beam (400), it comprises two or more wide case beam (1) and/or narrow case beams (2) that have the upper surface of carrying bridge deck separately, described wide case beam (1) and/or narrow case beam (2) are along horizontal expansion in line, it is characterized in that between the laterally adjacent case beam in two edges, having a T-connecting piece (3), one end (4) of the upper transverse part (6) of this T-connecting piece (3) is overlapped on the upper surface of a case beam, the other end (4 ') is overlapped on the upper surface of another adjacent case beam, and it is the space between the described case beam of vertical part (5) filling down.
2. case beam as claimed in claim 1, it is characterized in that described T-connecting piece be form by steel structure assembling or form by steel concrete cast.
3. case beam as claimed in claim 1, it is characterized in that the height of vertical part under the described T-connecting piece equals the height of described wide case beam (1) and/or narrow case beam (2) end, make the lower end of following vertical part of described T-connecting piece and the end part aligning of wide case beam (1) or narrow case beam (2).
4. an apposite boardelevated road elevated road (100), it is made up of the apposite boardelevated road (300) of run-in index apposite boardelevated road (200) and width gradual change,
Described run-in index apposite boardelevated road (200) comprises column (11), place the horizontal case beam of widening on the column (11) and be erected at vertical box beam between this horizontal case beam of widening, it is characterized in that described horizontal case beam of widening and vertical box beam be made up of the described case beam of claim 1 (400).
5. one kind as described in the claim 4 and the manufacture method of plate end elevated road, and it comprises the steps:
According to required road width two or three columns (11) that extend along road width of interval formation with regulation;
Go up its width of each self-forming at described two or three root posts (11) and extend the wide case beam (1) of a horizontally set in line and the narrow case beam (2) of one or two horizontally set along road width, the wide case beam (1) and the narrow case beam (2) of described horizontally set include the upper surface that is used to carry road slab;
Along the wide case beam (1) or the narrow case beam (2) that vertically are provided with of lifting separately between the narrow case beam (2) of the wide case beam (1) of adjacent two horizontally sets of elevated road bearing of trend or adjacent two horizontally sets;
Between each adjacent along the elevated road width is to wide case beam (1) and narrow case beam (2), form a T-connecting piece (3), one end of described T-connecting piece upper transverse part is overlapped on the upper surface of wide case beam, the other end is overlapped on the upper surface of adjacent narrow case beam, makes it down fill gap between wide case beam and the narrow case beam in vertical part; Form run-in index apposite boardelevated road (200) thus; And
Form the apposite boardelevated road (300) of width gradual change.
6. method as claimed in claim 5 is characterized in that forming described T-connecting piece (3) and carries out after described wide case beam (1) and described narrow case beam (2) reach settlement stability.
7. as claim 5 or 6 described methods, it is characterized in that described T-connecting piece is formed by the steel concrete cast; Before forming this T-connecting piece earlier that described wide case beam (1) is relative with described narrow case beam (2) two surface cutter hairs with raising be connected with T shape with the connection fastness.
8. the maintenance method of the described apposite boardelevated road elevated road of claim 4, it comprises the steps:
1) sets column sedimentation early warning value;
2) periodic measurement is used to carry the settlement difference of the column of same case beam;
3) when described settlement difference reaches described early warning value, regulate the height place the bearing on the column to eliminate described wide case beam, described narrow case beam and to place the internal force of the T-connecting piece between described wide case beam and the narrow case beam.
9. method as claimed in claim 8 is characterized in that described column sedimentation early warning value is set at 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100170386A CN100381641C (en) | 2004-03-18 | 2004-03-18 | Widened box girder, apposite boardelevated road, its manufacturing and maintaining method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100170386A CN100381641C (en) | 2004-03-18 | 2004-03-18 | Widened box girder, apposite boardelevated road, its manufacturing and maintaining method thereof |
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| CN1670309A CN1670309A (en) | 2005-09-21 |
| CN100381641C true CN100381641C (en) | 2008-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100170386A Expired - Lifetime CN100381641C (en) | 2004-03-18 | 2004-03-18 | Widened box girder, apposite boardelevated road, its manufacturing and maintaining method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104480847B (en) * | 2014-12-30 | 2016-05-18 | 桂林理工大学 | A kind of splicing bridge |
| CN106049290A (en) * | 2016-07-21 | 2016-10-26 | 中铁第勘察设计院集团有限公司 | Widening processing structure of prefabricated channel steel of prefabricated erected simply-supported beam between tunnels and construction method thereof |
| CN111058367B (en) * | 2019-12-31 | 2021-05-28 | 江苏沪宁钢机股份有限公司 | Oval box girder and manufacturing method thereof |
| CN114411525B (en) * | 2021-12-31 | 2024-04-30 | 湖南五新模板有限公司 | Large-span inverted arch construction stepping hydraulic trestle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09235706A (en) * | 1996-03-01 | 1997-09-09 | Oriental Constr Co Ltd | Reinforcing structure of gerber bridge hinge and reinforcing method thereof |
-
2004
- 2004-03-18 CN CNB2004100170386A patent/CN100381641C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09235706A (en) * | 1996-03-01 | 1997-09-09 | Oriental Constr Co Ltd | Reinforcing structure of gerber bridge hinge and reinforcing method thereof |
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| CN1670309A (en) | 2005-09-21 |
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