CN103210148B - Truss structure having an open-section upper chord member and a production method for the same, and a truss bridge using the truss structure having an open-section upper chord member and a method for constructing the same - Google Patents
Truss structure having an open-section upper chord member and a production method for the same, and a truss bridge using the truss structure having an open-section upper chord member and a method for constructing the same Download PDFInfo
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- CN103210148B CN103210148B CN201180046724.4A CN201180046724A CN103210148B CN 103210148 B CN103210148 B CN 103210148B CN 201180046724 A CN201180046724 A CN 201180046724A CN 103210148 B CN103210148 B CN 103210148B
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- upper chord
- section upper
- open section
- construction thing
- lattice construction
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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
- E01D6/00—Truss-type bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
- E04C3/294—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete of concrete combined with a girder-like structure extending laterally outside the element
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0495—Truss like structures composed of separate truss elements the truss elements being located in several non-parallel surfaces
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Bridges Or Land Bridges (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The present invention relates to a method for producing the truss structure having the open-section upper chord member and to a truss bridge using the truss structure having the open-section upper chord member and also to a method for constructing the same. The present invention relates to a truss structure having an open-section upper chord member adapted to economize on steel materials and to improve the efficiency of truss bridge construction, by constructing truss bridges by using a truss structure for supporting truss bridges, wherein the open-section upper chord member of the truss structure is constituted in the shape of an upward-opening letter "U" so as to allow filling with concrete, and a steel material which is provided inside the open-section upper chord member is in tension.
Description
Technical field
The present invention relates to a kind of trussed bridge, more specifically, relate to lattice construction thing with open section upper chord and preparation method thereof, and utilize trussed bridge and its construction method with the lattice construction thing of open section upper chord, when constructing trussed bridge, the open section upper chord of the lattice construction thing of sub-truss bridge is configured to top by " U " font opened, fill concrete wherein, and the lattice construction thing construction trussed bridge utilizing the steel being arranged on the inside of open section upper chord to be tensioned, thus, saving steel, and the application property of trussed bridge can be improved.
Background technology
Generally, trussed bridge is the type of bridge of the middle long span that can be useful in 50-200M, is that the extremely high structural form of the section efficiency of axial force mainly resisted by all components.
But, steel plate is utilized to form the existing trussed bridge of four limit sections, owing to needing to block steel plate, the reinforcement material of section inside be set, weld each limit, connecting elements, manufacture gusset plate and processing diagonal brace end, therefore the very complicated and very difficult manufacture of manufacturing engineering, cause increase man-hour with this, fabricating cost rises and economy reduces, thus be difficult to the advantage playing the outstanding trussed bridge of structure.
Summary of the invention
The present invention considers described existing problems point and proposes, its object is to, a kind of lattice construction thing with open section upper chord and preparation method thereof is provided, and utilize trussed bridge and its construction method with the lattice construction thing of open section upper chord, be welded on top by the diagonal brace that cut off by straight line end and montant to be become simple by the process of the open section upper chord opened, and while improving the make efficiency of lattice construction thing, cross dimensions (cross dimensions cannot be changed at the section sealing formula upper chord be made up of steel pipe) can be changed, therefore, the economic effect of design bridge is good, and, profile height or amplitude can be increased by open section upper chord in each place, thus material and can by the inside of Concrete Filled to open section upper chord can not be wasted when the size of open section upper chord becomes large, section intensity can be promoted thus.
Another object of the present invention is to, a kind of lattice construction thing with open section upper chord and preparation method thereof is provided, and utilize trussed bridge and its construction method with the lattice construction thing of open section upper chord, by carrying out tensioning at the lower chord of the open section upper chord of lattice construction thing and the span central portion lattice construction thing between both side ends place and each inner place that are installed on the place, inside between both side ends place and the connector that is connected and fixed on described lower chord in conjunction with steel, thus can improve the stressed holding capacity of tension section, and, be installed on inner place lattice construction lower chord and be connected and fixed on the connector fill concrete of described lower chord and can increase the stressed holding capacity of compression section.
Another object of the present invention is to, a kind of lattice construction thing with open section upper chord and preparation method thereof is provided, and utilize trussed bridge and its construction method with the lattice construction thing of open section upper chord, by be installed on inner place lattice construction thing lower chord and be connected and fixed on the connector fill concrete of described lower chord, thus can to increase the stressed holding capacity of compression section.
The lattice construction thing with open section upper chord of the present invention, it is characterized in that, comprising: multiple lower chord, it is formed by the steel pipe of hollow circular section; Diagonal brace, it is hollow circular section, and a side end is formed as curved surface to be connected and fixed on described lower chord, and end side is cut off by straight line and is fixed on open section upper chord to be close to; Montant, it is hollow circular section, and a side end is formed as curved surface to be connected and fixed on described lower chord, and end side is cut off by straight line and is fixed on open section upper chord to be close to; Open section upper chord, it is connected and fixed on the end side that described diagonal brace and montant are cut off by straight line, and is formed as top by " U " font that opens so that fill concrete and synthesizing with steel section.
The preparation method with the lattice construction thing of open section upper chord of the present invention, it is characterized in that, comprising: the lower chord of the span central portion between both side ends place and inner place and between inner place and the connector that is connected and fixed on described lower chord carry out tensioning in conjunction with the steel of tensioned portion and form the stressed step of compression section; The step of the gripper shoe of filling part is set at the lower chord being installed on inner place and the connector that is connected and fixed on described lower chord; The step of stud and the stirrup be connected with anti-shear concrete is set by the inside of " U " font open section upper chord opened on top; The step of the protecting pipe for inserting steel is set in the inside being positioned at the open section upper chord internally putting top; In order to the formation closed interval, both sides at described steel, plate is set in the inside of described open section upper chord and the step that is cured of concrete perfusion; When described concrete curing after, in the inside of described protecting pipe in conjunction with steel, then by closed interval, steel are carried out to the step of 1 tensioning; The multiple lower chords comprising described tensioned portion and filling part are arranged on node support and carry out the step that is connected and fixed; In the step that described filling part fill concrete is cured; The step of a side end of the diagonal brace that end side is cut off by straight line is connected and fixed on described lower chord; The step of a side end of the montant that end side is cut off by straight line is connected and fixed on described lower chord; The step of permanent opening section upper chord is installed in the end side of described diagonal brace and montant.
Utilization of the present invention has the trussed bridge of the lattice construction thing of open section upper chord, it is characterized in that, comprising: place, end, its setting relative to each other is to support the lattice construction thing being provided with " U " font open section upper chord, and inner place, it is arranged between place, end; Lattice construction thing, is provided with " U " font open section upper chord being installed on place, described end and inner place; First base plate, the superstructure reinforcing bar of the open section upper chord of the lattice construction thing on top, described inner place is also arranged for the protecting pipe in conjunction with steel, then concrete perfusion is cured and after the stirrup burying described protecting pipe, reinforcing bar and be fixed on open end upper chord, carries out tensioning at described protecting pipe in conjunction with steel; Second base plate, above span central portion lattice construction thing between place, described end and inner place and between each inner place, distributing bar is with the formation closed interval, both sides at the first base plate, then, concrete perfusion is cured and buries reinforced steel and be fixed on the stirrup of open end upper chord; Concrete, it is poured into described closed interval and is cured.
Utilization of the present invention has the method for the lattice construction thing construction trussed bridge of open section upper chord, it is characterized in that, comprising: the step of the lattice construction thing be made up of " U " font open section upper chord is installed in the place, inside between the place, end and place, described end of both sides; The steel being combined in the protecting pipe of described lattice construction thing are carried out the step of 2 tensionings by closed interval; Step for the formation of the mould of the first base plate is set on the open section upper chord that described steel are tensioned; At described mould inside distributing bar, and the step for the protecting pipe in conjunction with steel is set; Be cured at die perfusion concrete and bury described reinforcing bar, protecting pipe and be fixed on the stirrup of open section upper chord, the mould and form the first base plate step of then dismantling; At the protecting pipe of described first base plate in conjunction with the step of steel; Anchoring device is used to carry out the step of tensioning by closed interval the steel being combined in the protecting pipe of described first base plate; Arrange for the formation of the mould of the second base plate so that the step of the formation closed interval, both sides at described first base plate above lattice construction thing between place, described end and inner place and each inner place; At the internal structure reinforcing bar of described mould, and concrete perfusion is cured and buries described reinforcing bar and be fixed on the stirrup of open section upper chord, the mould and form the step of the second base plate of then dismantling; After the detachment tensioning device of described closed interval, in the step that described closed interval concrete perfusion is cured.
Beneficial effect
According to the present invention, by being cut off being close to top by the end side straight line of the montant of open section upper chord that opens and diagonal brace and reduce the processing of the end curved surface of montant and diagonal brace, thus simplify manufacturing process and lower fabricating cost, also easily block and weld diagonal brace end, therefore, improve the make efficiency of lattice construction thing, and the cross dimensions of the open section upper chord that can not be useful in steel pipe can be changed, so bridge design becomes more economical, and, by the open section upper chord adjustment profile height in interval, each place or amplitude, thus the material of increased open section upper chord can not be wasted, and by the inside fill concrete at open section upper chord, and improve profile rigid and section intensity, and simplify work progress to improve efficiency of construction, save the steel of open section upper chord simultaneously and can economy be improved.
According to the present invention, tensioning is carried out in conjunction with steel in the inside of the span central portion lower chord between the both side ends place larger by tension force in lattice construction thing and inner place and between each inner place or the connector that is connected and fixed on described lower chord, thus can by section stress limitation within permissible value without the need to the thickness increasing component, and by lattice construction thing the top, place, inside that compressive force is larger lower chord or be connected and fixed on described lower chord connector fill concrete and make steel and concrete share support compression section stressed, thus by respond well for construction economy while section stress limitation is within permissible value.
According to the present invention, the first base plate is formed by the top of the lattice construction thing be tensioned at steel, prevent tension force owing to occurring towards bridge direction of principal axis and laterally be full of cracks occurs base plate, and keep the complete synthesis of lattice construction thing and the first base plate, thus promote the durability of base plate, increase the service life, and be not exposed to outside due to steel and the concrete that is filled in lattice construction thing, thus the trussed bridge that outward appearance of can constructing is beautiful.
Accompanying drawing explanation
Fig. 1 is separation stereogram of the present invention.
Fig. 2 is the construction profile of Fig. 1.
Fig. 3 is the normal cross sectional drawing of Fig. 1.
Fig. 4 is cross-sectional side view of the present invention.
Fig. 5 to Fig. 8 is the procedure chart utilizing lattice construction thing of the present invention construction trussed bridge.
In figure:
100: lattice construction thing, 110: lower chord, 120: diagonal brace, 130: montant, 140: open section upper chord, 150: tensioned portion, 160: filling part, 170: steel, 180: stirrup, 200: trussed bridge, 210,210 ': place, end, 220: inner place, 230: the first base plates, 240: the second base plates.
Detailed description of the invention
Below, the embodiment that present invention will be described in detail with reference to the accompanying.Fig. 1 is separation stereogram of the present invention, and Fig. 2 is the construction profile of Fig. 1, and Fig. 3 is the normal cross sectional drawing of Fig. 1, and Fig. 4 is cross-sectional side view of the present invention.
The lattice construction thing with open section upper chord of the present invention, comprising: multiple lower chord 110, and it is formed by the steel pipe of hollow circular section; Diagonal brace 120, it is hollow circular section, and a side end is formed as curved surface to be connected and fixed on described lower chord 110, and end side is cut off by straight line and is fixed on described upper chord 140 to be close to; Montant 130, it is hollow circular section, and a side end is formed as curved surface to be connected and fixed on described lower chord 110, and end side is cut off by straight line and is fixed on open section upper chord 140 to be close to; Open section upper chord 140, it is connected and fixed on the end side cut off by straight line of described diagonal brace 120 and montant 130, and be formed as top by " U " font that opens so that fill concrete and synthesizing with steel section, below, this is further described.
In order to connect described lower chord 110, be preferably connected and fixed by connector 110 ' between lower chord 110.
The present invention also comprises: tensioned portion 150, and the lower chord 110 of the lattice construction thing 100 of the span central portion in place, described end 210, between 210 ' and inner place 220, between described each inner place 220 and the connector 110 ' being connected and fixed on described lower chord 110 form tension section in conjunction with steel 152 carry out tensioning stressed; Filling part 160, be installed on described inner place 220 lattice construction thing 100 lower chord 110 and be connected to described lower chord 110 connector 110 ' fill concrete and formed compression section stressed.
Form anchor 151 and steel 152 are possessed in described tensioned portion 150, the lower chord 110 that described form anchor is arranged at the lattice construction thing 100 on top, described inner place 220 and the inside of one be connected and fixed in the connector 110 ' of described lower chord 110, described steel are incorporated into the anchor hole 151a of described form anchor 151 and are tensioned.
Described filling part 160 possesses gripper shoe 161 and filler opening 162, the lower chord 110 that described gripper shoe is arranged at the lattice construction thing 100 on top, described inner place 220 and the inside of one be connected and fixed in the connector 110 ' of described lower chord 110, described filler opening is run through so that the lower chord 110 of the lattice construction thing 100 on top, described inner place 220 and a fill concrete being connected and fixed in the connector 110 ' of described lower chord 110.
Preferably multiple stud 163 is fixed with radiation at the lower chord 110 of lattice construction thing 100 and the inside of the connector 110 ' that is connected and fixed on described lower chord 110 that are provided with described gripper shoe 161.
Comprise further for the protecting pipe 170 ' in conjunction with steel 170 in the inside of open section upper chord 140 of the described lattice construction thing 100 being installed on inner place 220.
The stirrup 180 more outstanding than open section upper chord 140 is comprised further so that shear connections first base plate 230 and the second base plate 240 in the inside of described open section upper chord 140.
In addition, utilize the trussed bridge with the lattice construction thing of open section upper chord, comprise: place, end 210,210 ', its setting relative to each other is to support the lattice construction thing 100 being provided with " U " font open section upper chord 140, and inner place 220, it is arranged between place, end 210,210 '; Lattice construction thing 100, is provided with and is installed on place, described end 210,210 ' and " U " font open section upper chord 140 in inner place 220; First base plate 230, the superstructure reinforcing bar 231 of the open section upper chord 140 of the lattice construction thing 100 on top, described inner place 220 is also arranged for the protecting pipe 233 in conjunction with steel 232, then concrete perfusion is cured and after the stirrup 180 burying described protecting pipe 233, reinforcing bar 231 and be fixed on open end upper chord 140, carries out tensioning at described protecting pipe 233 in conjunction with steel 232; Second base plate 240, on place, described end 210, span central portion lattice construction thing 100 between 210 ' and inner place 220 and between each inner place 220, distributing bar is with formation closed interval, the both sides S ' at the first base plate 230, then, concrete perfusion is cured and buries reinforced steel 241 and be fixed on the stirrup 180 of open end upper chord 140; Concrete, it is poured into described closed interval S ' and is cured.
Then, the manufacturing process of the present invention formed as mentioned above and work progress are described.
First, as shown in Fig. 5 to 8, with the length meeting set trussed bridge, both side ends place 210,210 ' and the multiple inner place 220 that is arranged between place, described end 210,210 ' is set, thus making and installation in place, described end 210,210 ' and the lattice construction thing 100 in inner place 220.
Described lattice construction thing 100 assembles as follows, namely on each node support (omitting diagram) that predetermined space is arranged, the lower chord 110 formed by the steel pipe of hollow circular section is installed to assemble under unstress state temporarily, the side end that namely one side end of the diagonal brace 120 and montant 130 of being then close to hollow circular section on described lower chord 110 is formed as curved surface is assembled temporarily, and namely assembled by the open section upper chord 140 opened by the end side installation top that straight line cuts off in the end side of described diagonal brace 120 and montant 130 temporarily.
, in order to be mounted on the lower chord 110 of described each node support, can connector 110 ' be connected and fixed between lower chord 110 herein, also can assemble the side end being formed as curved surface of diagonal brace 120 and montant 130 at described connector 110 ' temporarily.
Now, before interim assembling to connect the lattice construction thing between lower chord 110 with connector 110 ', be subject to strain the stressed place, end 210 of section, between 210 ' and inner place 220 and between each inner place 220 in the lower chord 110 of described lattice construction thing 100, namely the lower chord 110 of span central portion or the inside of connector 110 ' that is connected to described lower chord 110 arrange the form anchor 151 of tensioned portion 150, in order to strengthen described form anchor 151, fixing ribs 151b in the inside of lower chord 110 or connector 110 ' and being strengthened.
If fix form anchor 151 at described lower chord 110 with the inside of the connector 110 ' being connected to described lower chord, then under state in conjunction with the steel 152 of steel wire or steel bar of the anchor hole 151a of described form anchor 151, by being welded and fixed the lower chord 110 forming tensioned portion 150 and the connector 110 ' being connected to described lower chord, tensioning apparatus (omitting diagram) is then used to carry out tensioning.Due to lower chord 110 or be fixed on the tension force that the form anchor 151 of inside of connector 110 ' and ribs 15b share the steel 152 of supporting steel wire or steel bar, therefore, it is possible to keep the tension force of the steel 152 of steel wire or steel bar.
It is stressed that the lower chord 110 being installed on the described lattice construction thing 100 in inner place 220 or the connector 110 ' being connected to described lower chord 110 produce the compression section caused due to dead load, before interim assembling to connect the lattice construction thing between lower chord 110 with connector 110 ', the gripper shoe 161 of filling part 160 is set at the lower chord 110 being installed on described inner place 220 or the inside of connector 110 ' that is connected to described lower chord 110, for strengthening described gripper shoe 161, strengthened at the inside fixed support rib 161a of gripper shoe 161 and lower chord 110 or connector 110 '.
, fix multiple stud 163 in gripper shoe 161 and the inside of the connector 110 ' being connected to described gripper shoe herein, described stud 163 preferably radiation is fixed.
By described process, multiple lower chord 110 and be connected to described lower chord connector 110 ' above connect side end face contact, and the diagonal brace 120 that end side is cut off by straight line, lower chord 110 and be connected to described lower chord connector 110 ' connect above side end face contact, and the montant 130 that cut off by straight line of end side temporarily assembling, then, the end side cut off by straight line being fixed by welding in described montant 130 and diagonal brace 120 is installed top and is arranged tensioned portion 150 while " U " font open section upper chord 140 of opening and filling part 160 carries out the lattice construction thing 100 with predetermined length of interim assembling and is integrally formed.
Be cured at filling part 160 fill concrete of the inside of described lattice construction thing 100, now, by running through filler opening 162 fill concrete of the connector 110 ' being formed in lower chord 110 and being fixed on described lower chord, spue until be filled to the concrete of filling from described filler opening 162 from the hole 162 ' that spues.
When described filling part 160 fill concrete, strengthen and the bed knife of supported plate 161 with ribs 161a, therefore, when completed lattice construction thing 100 system is subject to dead load and external force, concrete compressive force can be supported, the concrete being filled in described filling part 160 is firmly fixed at the stud 163 arranged, and completes the manufacture of lattice construction thing 100 simultaneously.
Above, describe the process to described filling part 160 fill concrete before lattice construction thing 100 is arranged on each place, but, when the steel capacity that is great or lifting gear of lattice construction thing 100 is insufficient, each place is arranged under the state of the first not fill concrete of filling part 160, and after forming the bridge structure system of whole lattice construction thing 100, fill concrete and can make it solidification.
And, stud 140 ' is fixed and in conjunction with the protecting pipe 170 ' of steel wire 170 and multiple stirrup 180 in the inside of " U " shape open section upper chord 140 of the lattice construction thing 100 being installed on described each place 210,210 ', 220, described steel wire 170 combines to be arranged at and arranges plate 170a, while described stirrup 180 holds described protecting pipe 170 ', preferably be fixed as more outstanding than upper chord 140 so that shear connections upper chord 140 and the first base plate 230 and the second base plate 240, be cured at the inside concrete perfusion of described open section upper chord 140.
Now, preferably at formation closed interval, both sides, the end S of described protecting pipe 170 ', by described closed interval S after protecting pipe 170 ' is in conjunction with steel wire 170, at closed interval S tensioning apparatus (omitting diagram), 1 tensioning is carried out to steel wire 170, thus make lattice construction thing 100.
Herein, the described plate 170a that arranges can be embedded in the concrete being poured into closed interval S, and, can dismantle together with mould after the concrete of the inside being poured into described open section 140 is cured.
1 tensile force of described steel wire 170 is preferably as follows and adjusts, namely before integrally connecting described lattice construction thing 100, be within upper chord section bearing capacity by the compression section force controlled produced due to tensioning open section upper chord 140, simultaneously when each place 210,210 ', 220 is installed lattice construction thing 100 and formed unitary construction system, the level of the degree that the concrete generation tensioning of the inside of the open section upper chord 140 on the top being filled in inner place 220 can be suppressed to chap.
Utilize the lattice construction thing 100 being installed on described each place 210,210 ', 220 construct trussed bridge 200 time, after steel wire 170 described in closed interval S tensioning apparatus (omit diagram) 2 tensionings of being extruded with the steel wire 170 of described lattice construction thing 100, in described closed interval, S fill concrete is cured.
2 tensile forces of described steel wire 170 are preferably as follows and adjust, namely on described lattice construction thing 100 pour into base plate 230,240 concrete and when solidifying, the level of the degree that the concrete generation tensioning of upper chord 140 inside on the top being filled in inner place 220 can be suppressed to chap.
When the concrete of the closed interval S being filled in described open section upper chord 140 solidifies, the mould of formation first base plate 230 is set on described lattice construction thing 100, at the internal structure reinforcing bar 231 of described mould, the protecting pipe 233 for the steel 232 in conjunction with steel wire or steel bar is also set, then, be cured at mould inside concrete perfusion and bury described reinforcing bar 231, protecting pipe 233 underground and be fixed on the stirrup 180 of open section upper chord 140, thus forming the first base plate 230.
If formed the first base plate 230, then to dismantle the mould of the first base plate 230, the mould of concrete second base plate 240 forming filling part 160 top is set in this case to form closed interval S with the first base plate 230, in described mould after distributing bar 241, be cured to bury described reinforcing bar 241 underground and to be fixed on the stirrup 180 of open section upper chord 140 at mould inside concrete perfusion, thus form the second base plate 240.
Formation described second base plate 240 before and afterwards, be embedded in the protecting pipe 233 of described first base plate 230 in conjunction with steel 232, then at the inside of closed interval S ' steel 232 described in tensioning apparatus (omitting diagram) tensioning, after the mobile tensioning apparatus of described closed interval S ', in described closed interval, S ' concrete perfusion is cured.
Above, though describe the present invention with reference to accompanying drawing and preferred embodiment, but all terms of this specification and claims scope shall not be construed as that usually use, that dictionary defines term, should be interpreted as implication and the concept of technological thought according to the invention.Embodiment described in this manual and diagram form only one embodiment of the invention, can not replace technological thought of the present invention, and being therefore interpreted as can have various equipollent and variation not departing from right of the present invention.
Claims (13)
1. there is a lattice construction thing for open section upper chord, it is characterized in that, comprising:
Multiple lower chord, it is formed by the steel pipe of hollow circular section;
Diagonal brace, it is hollow circular section, and a side end is formed as curved surface to be connected and fixed on described lower chord, and end side is cut off by straight line and is fixed on open section upper chord to be close to;
Montant, it is hollow circular section, and a side end is formed as curved surface to be connected and fixed on described lower chord, and end side is cut off by straight line and is fixed on open section upper chord to be close to;
Open section upper chord, it is connected and fixed on the end side that described diagonal brace and montant are cut off by straight line, and is formed as top by " U " font that opens so that fill concrete and synthesizing with steel section;
Tensioned portion, the lower chord of the lattice construction thing of the span central portion between place, end and inner place, between described each inner place and the connector that is connected and fixed on described lower chord carry out tensioning in conjunction with the steel of steel wire or steel bar and to form tension section stressed;
Filling part, be installed on described inner place lattice construction thing lower chord and be connected and fixed on described lower chord connector fill concrete and formed compression section stressed.
2. the lattice construction thing with open section upper chord according to claim 1, is characterized in that, is connected and fixed the connector being formed as a side end of curved surface for temporary fixed diagonal brace and montant between described multiple lower chord.
3. the lattice construction thing with open section upper chord according to claim 1, it is characterized in that, described tensioned portion, comprising:
Form anchor and ribs, its lower chord being arranged at the lattice construction thing on top, described inner place and the inside of one be connected and fixed in the connector of described lower chord;
The steel of steel wire or steel bar, it is incorporated into the anchor hole of described form anchor and is tensioned.
4. the lattice construction thing with open section upper chord according to claim 1, it is characterized in that, described filling part, comprising:
Gripper shoe and ribs, its lower chord being arranged at the lattice construction thing on top, described inner place and the inside of one be connected and fixed in the connector of described lower chord;
Filler opening, it is run through so that the lower chord of the lattice construction thing on top, described inner place and a fill concrete being connected and fixed in the connector of described lower chord.
5. the lattice construction thing with open section upper chord according to claim 4, is characterized in that, fixes multiple stud at the lower chord of lattice construction thing and the connector that is connected and fixed on described lower chord being provided with described gripper shoe with radiation.
6. the lattice construction thing with open section upper chord according to claim 1, is characterized in that, comprises further for the protecting pipe in conjunction with steel in the inside of open section upper chord of the described lattice construction thing being installed on inner place.
7. the lattice construction thing with open section upper chord according to claim 1, is characterized in that, comprises the stirrup more outstanding than open section upper chord further so that shear connections first base plate and the second base plate in the inside of described open section upper chord.
8. there is a preparation method for the lattice construction thing of open section upper chord, it is characterized in that, comprising:
The lower chord of the span central portion between both side ends place and inner place and between inner place and the connector that is connected and fixed on described lower chord carry out tensioning in conjunction with the steel of tensioned portion and form the stressed step of compression section;
The step of the gripper shoe of filling part is set at the lower chord being installed on inner place and the connector that is connected and fixed on described lower chord;
The step of stud and the stirrup be connected with anti-shear concrete is set by the inside of " U " font open section upper chord opened on top;
The step of the protecting pipe for inserting steel is set in the inside being positioned at the open section upper chord internally putting top;
In order to the formation closed interval, both sides at described steel, plate is set in the inside of described open section upper chord and the step that is cured of concrete perfusion;
When described concrete curing after, in the inside of described protecting pipe in conjunction with steel, then by closed interval, steel are carried out to the step of 1 tensioning;
The multiple lower chords comprising described tensioned portion and filling part are arranged on node support and carry out the step that is connected and fixed;
In the step that described filling part fill concrete is cured;
The step of a side end of the diagonal brace that end side is cut off by straight line is connected and fixed on described lower chord;
The step of a side end of the montant that end side is cut off by straight line is connected and fixed on described lower chord;
The step of permanent opening section upper chord is installed in the end side of described diagonal brace and montant.
9. the manufacture method with the lattice construction thing of open section upper chord according to claim 8, is characterized in that, between described lower chord, be connected and fixed connector.
10. the manufacture method with the lattice construction thing of open section upper chord according to claim 8, is characterized in that, is included in the step of fixing multiple stud before filling described concrete in the inside of lower chord further.
11. manufacture methods with the lattice construction thing of open section upper chord according to claim 8, is characterized in that, at described filling part fill concrete before lattice construction thing is installed on each place.
12. 1 kinds of utilizations have the trussed bridge of the lattice construction thing of open section upper chord, it is characterized in that, comprising:
Place, end, its setting relative to each other is to support the lattice construction thing being provided with " U " font open section upper chord, and inner place, and it is arranged between place, end;
Lattice construction thing, is provided with " U " font open section upper chord being installed on place, described end and inner place;
First base plate, the superstructure reinforcing bar of the open section upper chord of the lattice construction thing on top, described inner place and setting are for the protecting pipe in conjunction with steel, then concrete perfusion is cured and after the stirrup burying described protecting pipe, reinforcing bar and be fixed on open end upper chord, carries out tensioning at described protecting pipe in conjunction with steel;
Second base plate, above span central portion lattice construction thing between place, described end and inner place and between each inner place, distributing bar is with the formation closed interval, both sides at the first base plate, then, concrete perfusion is cured and buries reinforced steel and be fixed on the stirrup of open end upper chord;
Concrete, it is poured into described closed interval and is cured.
13. 1 kinds of utilizations have the method for the lattice construction thing construction trussed bridge of open section upper chord, it is characterized in that, comprising:
The step of the lattice construction thing be made up of " U " font open section upper chord is installed in place, inside between the place, end and place, described end of both sides;
The steel being combined in the protecting pipe of described lattice construction thing are carried out the step of 2 tensionings by closed interval;
Step for the formation of the mould of the first base plate is set on the open section upper chord that described steel are tensioned;
At described mould inside distributing bar, and the step for the protecting pipe in conjunction with steel is set;
Be cured at die perfusion concrete and bury described reinforcing bar, protecting pipe and be fixed on the stirrup of open section upper chord, the mould and form the first base plate step of then dismantling;
At the protecting pipe of described first base plate in conjunction with the step of steel;
Anchoring device is used to carry out the step of tensioning by closed interval the steel being combined in the protecting pipe of described first base plate;
Arrange for the formation of the mould of the second base plate so that the step of the formation closed interval, both sides at described first base plate above lattice construction thing between place, described end and inner place and each inner place;
At the internal structure reinforcing bar of described mould, and concrete perfusion is cured and buries described reinforcing bar and be fixed on the stirrup of open section upper chord, the mould and form the step of the second base plate of then dismantling;
After the detachment tensioning device of described closed interval, in the step that described closed interval concrete perfusion is cured.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0093079 | 2010-09-27 | ||
| KR1020100093079A KR101030128B1 (en) | 2010-09-27 | 2010-09-27 | Truss structures having open box section in upper chords and construction method of truss bridges |
| PCT/KR2011/007030 WO2012044013A2 (en) | 2010-09-27 | 2011-09-23 | Truss structure having an open-section upper chord member and a production method for the same, and a truss bridge using the truss structure having an open-section upper chord member and a method for constructing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103210148A CN103210148A (en) | 2013-07-17 |
| CN103210148B true CN103210148B (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180046724.4A Expired - Fee Related CN103210148B (en) | 2010-09-27 | 2011-09-23 | Truss structure having an open-section upper chord member and a production method for the same, and a truss bridge using the truss structure having an open-section upper chord member and a method for constructing the same |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR101030128B1 (en) |
| CN (1) | CN103210148B (en) |
| SG (1) | SG189118A1 (en) |
| WO (1) | WO2012044013A2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101321699B1 (en) * | 2012-10-19 | 2013-10-28 | 주현규 | Composite truss beam using double tube type pipe member and bridge therewith |
| KR101339609B1 (en) * | 2013-01-21 | 2014-01-07 | 한우물중공업(주) | Truss girder of steel box |
| CN103669194B (en) * | 2013-12-29 | 2016-04-06 | 长安大学 | Based on the continuous rigid frame bridge of steel truss-concrete slab composite beam |
| US9422680B2 (en) | 2014-04-14 | 2016-08-23 | Guido FURLANETTO | Deck |
| KR101581380B1 (en) * | 2015-03-30 | 2015-12-30 | 우경기술주식회사 | Hybrid truss girder |
| KR101797988B1 (en) * | 2017-02-22 | 2017-12-13 | 브릿지테크놀러지(주) | Truss through bridge and the construction method thereof |
| CN109944168A (en) * | 2019-03-13 | 2019-06-28 | 上海市政工程设计研究总院（集团）有限公司 | A kind of Large-Span Cantilever assembly steel bridge rod piece |
| KR102342316B1 (en) * | 2019-11-25 | 2021-12-22 | 한국철도기술연구원 | An super- and sub- integral monolithic elevated structure with longitudinal backbone superstructure |
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| JP2507596Y2 (en) * | 1989-12-20 | 1996-08-14 | 清水建設株式会社 | Composite structure |
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2010
- 2010-09-27 KR KR1020100093079A patent/KR101030128B1/en active IP Right Grant
-
2011
- 2011-09-23 SG SG2013022629A patent/SG189118A1/en unknown
- 2011-09-23 CN CN201180046724.4A patent/CN103210148B/en not_active Expired - Fee Related
- 2011-09-23 WO PCT/KR2011/007030 patent/WO2012044013A2/en active Application Filing
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| JP2004027516A (en) * | 2002-06-21 | 2004-01-29 | Oriental Construction Co Ltd | Composite truss segment and truss bridge for simultaneously using suspension cable by using this truss segment and its construction method |
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Also Published As
| Publication number | Publication date |
|---|---|
| SG189118A1 (en) | 2013-05-31 |
| WO2012044013A3 (en) | 2012-06-21 |
| CN103210148A (en) | 2013-07-17 |
| WO2012044013A2 (en) | 2012-04-05 |
| KR101030128B1 (en) | 2011-04-20 |
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