CN203462395U - Stiffened steel truss-concrete beam combined bridge structure - Google Patents
Stiffened steel truss-concrete beam combined bridge structure Download PDFInfo
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- CN203462395U CN203462395U CN201320556468.XU CN201320556468U CN203462395U CN 203462395 U CN203462395 U CN 203462395U CN 201320556468 U CN201320556468 U CN 201320556468U CN 203462395 U CN203462395 U CN 203462395U
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Abstract
The utility model relates to a stiffened steel truss-concrete beam combined bridge structure. In the design of a railway bridge, the problems of controlling additional deformation and creep deformation caused by temperature and ensuring uniform distribution of rigidity as far as possible are required to be considered. The stiffened steel truss-concrete beam combined bridge structure is provided with a longitudinal concrete precast box grider; a stiffened steel truss is arranged on the whole line or a part above the box grider; the stiffened steel truss is composed of top booms, web members and transverse bracings; the top booms are longitudinally and parallelly arranged in double lines; the web members are arranged between the top booms and the box grider and divide a planar space between the top booms and the box grider into a plurality of isosceles triangle units; the plurality of transverse bracings arranged transversely are arranged between the top booms; an inclined transverse bracing is arranged at the diagonal between each two adjacent transverse bracings; the inclination direction of each two adjacent inclined transverse bracings are opposite. The stiffened steel truss-concrete beam combined bridge structure has the advantages that the dead weight of the structure can be reduced effectively, the integral rigidity of the structure can be improved, a beam-end corner is improved greatly, the creep deformation value of the later period of a concrete girder bridge is improved remarkably, and the degree of riding comfort is improved.
Description
Technical field
the utility model belongs to bridge construction technical field of buildings, is specifically related to the bridge construction of a kind of steel purlin of putting more energy into-concrete beam combination.
Background technology
Train is under the condition of high-speed cruising, the comfort level that the small irregularity of circuit all can be taken the safety of train operation and passenger is brought significant impact, in order to guarantee the ride comfort of circuit, in the especially large design across railroad bridge of railroad bridge, need the problem of considering to mainly contain 2 points: the one, the additional deformation that temperature causes and the control of creep deformation; The 2nd, guarantee that as far as possible Stiffness Distribution is even.Therefore can effectively to improve the less new composite structure of the rigidity of structure, temperature deformation and creep deformation be very necessary in research.
Summary of the invention
The purpose of this utility model is to provide the bridge construction of a kind of steel purlin of putting more energy into-concrete beam combination, can effectively improve the rigidity in cross section, obviously improves concrete beam bridge later stage creep deformation value.
The technical scheme that the utility model adopts is:
The bridge construction that the steel purlin-concrete beam of putting more energy into combines, is characterized in that:
Be provided with precast concrete box-beam (3) longitudinally, all fronts, case beam (3) top or the local steel purlin of putting more energy into that arranges.
The described steel purlin of putting more energy into is comprised of upper chord, web member and stull;
Upper chord parallel longitudinal arranges, and between upper chord and case beam, web member is set, and the plane space between upper chord and case beam is divided into several isosceles triangle unit;
The stull of some lateral arrangement is set between upper chord, and between adjacent stull, diagonal angle arranges the stull of inclination, and the incline direction of the stull of adjacent inclined is contrary.
Described case depth of beam is successively decreased to both sides from bridge centerline, and case back plate both sides arrange the edge of a wing, in case beam casing, vertical web is set.
The utlity model has following advantage:
(1) building height is low:
Compare with normal concrete beams, beam body section of the present utility model is further optimized, and concrete deck-molding reduces obviously.
(2) rigidity is large and be evenly distributed, and driving power performance is good:
Compare with normal concrete beams, the steel purlin of putting more energy into is strengthened to the part of implementing along vertical bridge, the vertical rigidity variation of whole bridge construction is more reached unanimity, driving dynamic performance superiority.
(3) maintenance workload is little:
Compare with steel bridge, owing to only adopting the steel purlin of putting more energy on bridge floor, steel using amount and maintenance workload significantly reduce, and construction costs obviously reduces.
(4) easy construction, can conveniently be suitable for non-fragment orbit and require:
The first construction of construction method routinely of this combining structure concrete beam, the concrete beam bridge floor of then usining is installed the steel purlin of putting more energy into, the bridge floor ancillary facility of finally constructing as working platform.Compare with steel bridge, structure bottom is divided into concrete structure, can be suitable for easily ballastless track structure.
Accompanying drawing explanation
Fig. 1 is the utility model elevation.
Fig. 2 is the utility model plan view.
Fig. 3 is A-A cross-sectional view in Fig. 1.
In figure, 1-upper chord, 2-web member, 3-case beam, 4-stull.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is described in detail.
The bridge construction of a kind of steel purlin of putting more energy into that the utility model relates to-concrete beam combination, its major bearing structures is combined by prestressed concrete beam (case beam) and reinforcing structure steel truss (the steel purlin of putting more energy into), by the steel purlin of putting more energy into, effectively improve the rigidity in cross section, the combining structure of the steel purlin-concrete beam that makes to put more energy into is well positioned to meet the various requirement of high-speed railway operation.Concrete structure is:
Be provided with precast concrete box-beam 3 longitudinally, case beam 3 all fronts, tops or the local steel purlin of putting more energy into that arranges.The steel purlin of putting more energy into is comprised of upper chord 1, web member 2 and stull 4: upper chord 1 two-wire parallel longitudinal arranges, and between upper chord 1 and case beam 3, web member 2 is set, and the plane space between upper chord 1 and case beam 3 is divided into several isosceles triangle unit; The stull 4 of some lateral arrangement is set between upper chord 1, and between adjacent stull 4, diagonal angle arranges the stull 4 of inclination, and the incline direction of the stull 4 of adjacent inclined is contrary.The height of case beam 3 successively decreases to both sides from bridge centerline, and case beam 3 top board both sides arrange the edge of a wing, in case beam 3 casings, vertical web are set.Case beam is outstanding fills with construction to closure, and the steel purlin of putting more energy into utilizes concrete bridge surface construction, and structure has retained that concrete beam rigidity is large, power performance good, economic dispatch advantage, and meanwhile, because of the steel purlin of putting more energy into, the main beam concrete scale of construction, structure height be minimizing to some extent all.
The structure that the utility model relates to can effectively reduce dead load, improve structural entity rigidity, greatly improve beam-ends corner, obviously improve concrete beam bridge later stage creep deformation value, put more energy into steel purlin along vertical bridge to the part reinforcement of implementing, just in time made up significantly the diminish weakness of region vertical rigidity deficiency of T structure or continuous beam depth of section, the vertical rigidity variation of whole bridge construction is more reached unanimity, have span ability and the feature that realizes headroom optimum organization, by becoming more meticulous, design can meet the double requirements of special bridge location to span and headroom.High-speed railway need multispan and etc. across the river of crossing over and need greatly across cross over and structure height constrained environment in have comparatively significantly advantage.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model manual, is claim of the present utility model and contains.
Claims (3)
1. the bridge construction that the steel purlin-concrete beam of putting more energy into combines, is characterized in that:
Be provided with precast concrete box-beam (3) longitudinally, all fronts, case beam (3) top or the local steel purlin of putting more energy into that arranges.
2. the bridge construction that a kind of steel purlin of putting more energy into according to claim 1-concrete beam combines, is characterized in that:
The described steel purlin of putting more energy into is comprised of upper chord (1), web member (2) and stull (4);
Upper chord (1) parallel longitudinal setting, arranges web member (2) between upper chord (1) and case beam (3), and the plane space between upper chord (1) and case beam (3) is divided into several isosceles triangle unit;
The stull (4) of some lateral arrangement is set between upper chord (1), and between adjacent stull (4), diagonal angle arranges the stull (4) of inclination, and the incline direction of the stull of adjacent inclined (4) is contrary.
3. the bridge construction that a kind of steel purlin of putting more energy into according to claim 1-concrete beam combines, is characterized in that:
The height of described case beam (3) successively decreases to both sides from bridge centerline, and case beam (3) top board both sides arrange the edge of a wing, in case beam (3) casing, vertical web is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320556468.XU CN203462395U (en) | 2013-09-09 | 2013-09-09 | Stiffened steel truss-concrete beam combined bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320556468.XU CN203462395U (en) | 2013-09-09 | 2013-09-09 | Stiffened steel truss-concrete beam combined bridge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203462395U true CN203462395U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320556468.XU Expired - Lifetime CN203462395U (en) | 2013-09-09 | 2013-09-09 | Stiffened steel truss-concrete beam combined bridge structure |
Country Status (1)
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| CN (1) | CN203462395U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437274A (en) * | 2013-09-09 | 2013-12-11 | 中铁第一勘察设计院集团有限公司 | Bridge structure with combination of stiffening steel truss and concrete beam |
| CN104976130A (en) * | 2015-04-23 | 2015-10-14 | 李德生 | Barrier-free groove pump device |
| CN110777680A (en) * | 2019-11-13 | 2020-02-11 | 广西恒正建设工程质量检测有限公司 | Method for reinforcing, lifting and transforming beam bridge |
| CN110777679A (en) * | 2019-11-13 | 2020-02-11 | 广西恒正建设工程质量检测有限公司 | Method for reinforcing, lifting and transforming truss of deck type arch bridge |
-
2013
- 2013-09-09 CN CN201320556468.XU patent/CN203462395U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437274A (en) * | 2013-09-09 | 2013-12-11 | 中铁第一勘察设计院集团有限公司 | Bridge structure with combination of stiffening steel truss and concrete beam |
| CN104976130A (en) * | 2015-04-23 | 2015-10-14 | 李德生 | Barrier-free groove pump device |
| CN110777680A (en) * | 2019-11-13 | 2020-02-11 | 广西恒正建设工程质量检测有限公司 | Method for reinforcing, lifting and transforming beam bridge |
| CN110777679A (en) * | 2019-11-13 | 2020-02-11 | 广西恒正建设工程质量检测有限公司 | Method for reinforcing, lifting and transforming truss of deck type arch bridge |
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Granted publication date: 20140305 |
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| CX01 | Expiry of patent term |