CN106758813A - For the UHPC wells formula rib floorings and its construction method of steel reinforced concrete composite beam bridge - Google Patents

For the UHPC wells formula rib floorings and its construction method of steel reinforced concrete composite beam bridge Download PDF

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Publication number
CN106758813A
CN106758813A CN201611252773.4A CN201611252773A CN106758813A CN 106758813 A CN106758813 A CN 106758813A CN 201611252773 A CN201611252773 A CN 201611252773A CN 106758813 A CN106758813 A CN 106758813A
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CN
China
Prior art keywords
floorings
uhpc
formula rib
well formula
rib
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Application number
CN201611252773.4A
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Chinese (zh)
Inventor
卓为顶
刘钊
贺志启
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东南大学
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Application filed by 东南大学 filed Critical 东南大学
Priority to CN201611252773.4A priority Critical patent/CN106758813A/en
Publication of CN106758813A publication Critical patent/CN106758813A/en

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/12Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125Grating or flooring for bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • E01D2101/268Composite concrete-metal

Abstract

The invention discloses a kind of UHPC wells formula rib floorings and its construction method for steel reinforced concrete composite beam bridge, including prefabricated U HPC well formula ribs floorings, rectangular cylindrical notch, top bars, lower floor's reinforcing bar, cluster nail group, high-strength grout, wet tape splicing reinforcing bar and wet tape splicing concrete.Wherein the upper surface of steel beam flange plate has cluster to follow closely group along longitudinal measure;Batch production prefabricated U HPC well formula rib floorings;Rectangular cylindrical notch alignment cluster nail group is installed on girder steel, high-strength grout is poured in rectangular cylindrical notch, pour wet tape splicing concrete, UHPC well formula rib floorings is connected integral with girder steel.Floorings of the invention can play UHPC resistance to compressions, tensile strength mechanical characteristic high, using well formula rib and panel combination, effectively improve bearing capacity, reduce thickness of slab, and cancel the transverse prestress in general concrete floorings, using prefabricated installation, site operation is without bed die, and high-strength grout curing time is few, can live rapid assembly.

Description

For the UHPC wells formula rib floorings and its construction method of steel reinforced concrete composite beam bridge
Technical field
The invention belongs to technical field of bridge engineering, and in particular to a kind of construction of prefabricated U HPC wells formula rib floorings and apply Work, can be used as I-shaped or box section steel reinforced concrete composite beam bridge floorings.
Background technology
Steel reinforced concrete combined bridge is a kind of competitive type of bridge, but, its conventional floorings is configured with Steel Bridge Deck Two kinds of plate and normal concrete floorings.There is fatigue, cracking and pave-load layer breakage problem, normal concrete bridge floor in steel bridge deck Plate has that structure is thick and heavy, tensile strength it is low be easy to cracking,.And ultra-high performance concrete UHPC (Ultra- High Performance Concrete), it is considered to be most innovative cement base engineering material in over the past thirty years, resist Pressure, tensile strength are high, and Creep Coefficient is small.Compared with cast-in-place normal concrete floorings, using prefabricated UHPC well formula rib bridge floors Plate, intensity is high, and shrinkage and creep amount is small, good endurance;Meanwhile, can be not provided with transverse prestress, mitigate dead load, lifting compared with For easy, can be with rapid assembling construction.
Therefore, the floorings the invention provides a kind of innovation are constructed and its construction method, in can overcoming combined bridge Traditional steel bridge deck and some technical deficiencies of normal concrete floorings.
The content of the invention
It is an object of the invention to provide a kind of prefabricated U HPC well formula ribs floorings construction of steel reinforced concrete composite beam bridge, using UHPC Tension, compression strength material property high, while the appropriate well formula rib of construction, significantly reduces the thickness of floorings.Its Have the advantages that excellent stress performance, light structure, need not configure prestressing force, can quick-assembling construct, can also mitigate the later stage Disease, reduces later maintenance pipe and supports workload.The second object of the present invention is to provide a kind of steel reinforced concrete composite beam bridge UHPC well formulas The construction method of rib floorings.
The technical solution adopted by the present invention is:A kind of UHPC well formula rib floorings for steel reinforced concrete composite beam bridge, including it is pre- UHPC wells formula rib floorings processed, rectangular cylindrical notch, top bars, lower floor's reinforcing bar, cluster nail group, high-strength grout, wet tape splicing steel Muscle and wet tape splicing concrete;
The cluster nail group is welded on the upper surface of the flange plate of girder steel, and cluster is followed closely group and be arranged in parallel along longitudinal direction is multiple rows of, multiple rows of cluster It is separated by identical spacing between nail group;
The UHPC wells formula rib floorings are made up of well formula rib and panel two parts, and top bars and lower floor are set in panel Reinforcing bar in rib is set in reinforcing bar, well formula rib, there is pre-buried wet tape splicing reinforcing bar to expose on the faying face of UHPC well formula rib floorings periphery, Rectangular cylindrical notch is reserved with UHPC well formula rib floorings, the position of rectangular cylindrical notch is relative with the position of cluster nail group Should, the top bars passed through in rectangular cylindrical notch keeps continuous, and high-strength grout is poured in rectangular cylindrical notch, makes UHPC well formula rib floorings are connected integral with girder steel;Wet tape splicing bar splicing between adjacent UHPC wells formula rib floorings, and Pour wet tape splicing concrete.
Preferably, the well formula rib height H1=22~30cm, plate thickness is H2=12~20cm;Direction across bridge:Well Formula rib width B1=10~15cm;Vertical bridge to:Well formula rib base opening width B2=40~60cm, chamfering gradient i=1:1.5~1:2.
The construction method of the above-mentioned UHPC well formula rib floorings for steel reinforced concrete composite beam bridge, comprises the following steps:
1) batch production makes UHPC well formula rib floorings, and top bars and lower floor's reinforcing bar are set in panel, is set in well formula rib Reinforcing bar in rib is put, is formed using UHPC is concrete prefabricated, there is pre-buried wet tape splicing reinforcing bar to expose on its periphery faying face, in correspondence On the UHPC well formula rib floorings of cluster nail group position, rectangular cylindrical notch is reserved with, the prefabricated U HPC wells in rectangular cylindrical notch The top bars of formula rib floorings keeps continuous;
2) girder steel is installed, steel beam flange plate upper surface is welded with cluster nail group with identical spacing, by prefabricated U HPC well formula rib bridges The rectangular cylindrical notch alignment cluster nail group of panel is installed on girder steel, and makes the wet tape splicing between adjacent UHPC wells formula rib floorings Bar splicing;
3) high-strength grout is poured in rectangular cylindrical notch, UHPC well formula rib floorings is connected integral with girder steel, Heat and moisture preserving is conserved 5~7 days.
4) the wet tape splicing reinforcing bar between the UHPC wells formula rib floorings is installed, the end template of wet band portions is lifted, is poured Wet tape splicing concrete is built, heat and moisture preserving is conserved 7~14 days, you can come into operation.
Compared with prior art, the present invention has the advantages that:
1st, the present invention is using UHPC well formula ribs floorings construction, the material for making full use of the tension of UHPC, compression strength high Characteristic, eliminates the transverse prestress of floorings.
2nd, appropriate well formula rib construction is designed, the thickness of floorings is significantly reduced, reducing dead load makes structure Become light and handy.
3rd, prefabricated installation UHPC well formula rib floorings, realize the erection without scaffolding of steel-cast-in-place floorings of mixed combination beam, make On-site consolidation construction is quick and convenient.
4th, group is followed closely by cluster and high-strength grout closely couples together girder steel and UHPC well formula rib floorings, formd whole Body force structure, gives full play to the material property of steel-concrete structure.
Brief description of the drawings
Fig. 1 is UHPC wells formula rib floorings construction cross-sectional view of the invention.
Fig. 2 is prefabricated U HPC wells formula rib floorings cross-sectional view of the invention.
Fig. 3 is A-A sectional drawings in Fig. 2.
Fig. 4 is UHPC wells formula rib floorings scheme of installation of the invention.
Fig. 5 is the preceding schematic diagram of installation between UHPC wells formula rib floorings of the invention.
Fig. 6 is schematic diagram after installing between UHPC wells formula rib floorings of the invention.
Fig. 7 is that wet tape splicing shows and be in the milk intention between UHPC wells formula rib floorings of the invention.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in figs. 1-7, a kind of UHPC well formula rib floorings for steel reinforced concrete composite beam bridge, including prefabricated U HPC well formula ribs Floorings 4, rectangular cylindrical notch 5, top bars 8, lower floor's reinforcing bar 9, cluster nail group 3, high-strength grout 10, wet tape splicing reinforcing bar 11 with And wet tape splicing concrete 12;
The cluster nail group 3 is welded on the upper surface of the flange plate 2 of girder steel 1, and cluster is followed closely group 3 and be arranged in parallel along longitudinal direction is multiple rows of, many It is separated by identical spacing between row cluster nail group 3;
The UHPC wells formula rib floorings 4 are made up of well formula rib 6 and panel two parts, and the He of top bars 8 is set in panel Reinforcing bar 7 in rib is set in lower floor's reinforcing bar 9, well formula rib 6, has pre-buried wet tape splicing on the periphery faying face of UHPC well formula ribs floorings 4 Reinforcing bar 11 exposes, and rectangular cylindrical notch 5, the position of rectangular cylindrical notch 5 and the cluster are reserved with UHPC well formula ribs floorings 4 The position for following closely group 3 is corresponding, and the top bars 8 passed through in rectangular cylindrical notch 5 keeps continuous, in rectangular cylindrical notch 5 High-strength grout 10 is poured, UHPC well formula ribs floorings 4 is connected integral with girder steel 1;Adjacent UHPC wells formula rib floorings 4 it Between wet tape splicing reinforcing bar 11 overlap, and pour wet tape splicing concrete 12.
The height H1=22 of the well formula rib 6~30cm, plate thickness is H2=12~20cm;Direction across bridge:The width of well formula rib 6 B1=10~15cm;Vertical bridge to:The base opening width B2=40 of well formula rib 6~60cm, chamfering gradient i=1:1.5~1:2.
The construction method of the above-mentioned UHPC well formula rib floorings for steel reinforced concrete composite beam bridge, comprises the following steps:
1) batch production makes UHPC well formula ribs floorings 4, and top bars 8 and lower floor's reinforcing bar 9, well formula rib 6 are set in panel Reinforcing bar 7 in interior setting rib, forms using UHPC is concrete prefabricated, has pre-buried wet tape splicing reinforcing bar 11 to reveal on its periphery faying face Go out, on the UHPC well formula ribs floorings 4 of correspondence cluster nail group 3 position, rectangular cylindrical notch 5 is reserved with, in rectangular cylindrical notch 5 The top bars 8 of interior prefabricated U HPC wells formula rib floorings 4 keeps continuous;
2) girder steel 1 is installed, the upper surface of 1 flange plate of girder steel 2 is welded with cluster nail group 3 with a determining deviation, by prefabricated U HPC well formulas Rib floorings 4 rectangular cylindrical notch 5 alignment cluster nail group 3 be installed on girder steel 1, and make adjacent UHPC wells formula rib floorings 4 it Between wet tape splicing reinforcing bar 11 overlap;
3) high-strength grout 10 is poured in rectangular cylindrical notch 5, UHPC well formula ribs floorings 4 is connected into girder steel 1 Overall, heat and moisture preserving is conserved 5~7 days.
4) the wet tape splicing reinforcing bar 11 between the UHPC wells formula rib floorings 4 is installed, the end template of wet band portions is lifted, Wet tape splicing concrete 12 is poured, heat and moisture preserving is conserved 7~14 days, you can come into operation.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, Some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.In the present embodiment not Clear and definite each part can use prior art to be realized.

Claims (3)

1. a kind of UHPC well formula rib floorings for steel reinforced concrete composite beam bridge, it is characterised in that:Including prefabricated U HPC well formula rib bridges Panel, rectangular cylindrical notch, top bars, lower floor's reinforcing bar, cluster nail group, high-strength grout, wet tape splicing reinforcing bar and wet tape splicing are mixed Solidifying soil;
The cluster nail group is welded on the upper surface of the flange plate of girder steel, and cluster is followed closely group and be arranged in parallel along longitudinal direction is multiple rows of, and multiple rows of cluster follows closely group Between be separated by identical spacing;
The UHPC wells formula rib floorings are made up of well formula rib and panel two parts, and top bars and lower floor's steel are set in panel Reinforcing bar in rib is set in muscle, well formula rib, there is pre-buried wet tape splicing reinforcing bar to expose on the faying face of UHPC well formula rib floorings periphery, Rectangular cylindrical notch is reserved with UHPC well formula rib floorings, the position of rectangular cylindrical notch is relative with the position of cluster nail group Should, the top bars passed through in rectangular cylindrical notch keeps continuous, and high-strength grout is poured in rectangular cylindrical notch, makes UHPC well formula rib floorings are connected integral with girder steel;Wet tape splicing bar splicing between adjacent UHPC wells formula rib floorings, and Pour wet tape splicing concrete.
2. UHPC well formula rib floorings for steel reinforced concrete composite beam bridge according to claim 1, it is characterised in that:The well Formula rib height H1=22~30cm, plate thickness is H2=12~20cm;Direction across bridge:Well formula rib width B1=10~15cm;It is vertical Bridge to:Well formula rib base opening width B2=40~60cm, chamfering gradient i=1:1.5~1:2.
3. the construction method of the UHPC well formula rib floorings for steel reinforced concrete composite beam bridge according to claim 1, its feature It is:Comprise the following steps:
1) batch production makes UHPC well formula rib floorings, is set in panel and rib is set in top bars and lower floor's reinforcing bar, well formula rib Interior reinforcing bar, forms using UHPC is concrete prefabricated, has pre-buried wet tape splicing reinforcing bar to expose on its periphery faying face, in correspondence cluster nail On the UHPC well formula rib floorings of group position, rectangular cylindrical notch is reserved with, the prefabricated U HPC wells formula rib in rectangular cylindrical notch The top bars of floorings keeps continuous;
2) girder steel is installed, steel beam flange plate upper surface is welded with cluster nail group with identical spacing, by prefabricated U HPC well formula rib floorings Rectangular cylindrical notch alignment cluster nail group be installed on girder steel, and make the wet tape splicing reinforcing bar between adjacent UHPC wells formula rib floorings Overlap joint;
3) high-strength grout is poured in rectangular cylindrical notch, UHPC well formula rib floorings is connected integral with girder steel, be incubated Moisture-keeping maintaining 5~7 days;
4) the wet tape splicing reinforcing bar between the UHPC wells formula rib floorings is installed, the end template of wet band portions is lifted, is poured wet Tape splicing concrete, heat and moisture preserving is conserved 7~14 days, you can come into operation.
CN201611252773.4A 2016-12-30 2016-12-30 For the UHPC wells formula rib floorings and its construction method of steel reinforced concrete composite beam bridge CN106758813A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108385522A (en) * 2018-01-17 2018-08-10 中交第二航务工程局有限公司 Prefabrication and assembly construction UHPC combination beams and rapid constructing method
CN110106772A (en) * 2019-04-16 2019-08-09 河海大学 A kind of highway clod wash U-shaped composite beam bridge and its construction method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120054705A (en) * 2010-11-22 2012-05-31 한국건설기술연구원 Connecting details and connecting method of uhpc precast slab using steel bar in tapered recess
CN203546589U (en) * 2013-10-24 2014-04-16 同济大学 Steel girder-integral lifting arm prefabricated concrete bridge panel combined girder bridge
CN104831617A (en) * 2015-05-26 2015-08-12 福州大学 Steel-super high performance concrete composite beam based on ribbed plate type bridge deck and construction method
CN106049255A (en) * 2016-07-22 2016-10-26 邵旭东 Simple-support variant-continuous structure of steel-ultrahigh performance concrete light composite beam and construction method for same
CN205711743U (en) * 2016-06-12 2016-11-23 温州市交通投资集团有限公司 A kind of steel concrete combined bridge deck of dry and wet seam

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120054705A (en) * 2010-11-22 2012-05-31 한국건설기술연구원 Connecting details and connecting method of uhpc precast slab using steel bar in tapered recess
CN203546589U (en) * 2013-10-24 2014-04-16 同济大学 Steel girder-integral lifting arm prefabricated concrete bridge panel combined girder bridge
CN104831617A (en) * 2015-05-26 2015-08-12 福州大学 Steel-super high performance concrete composite beam based on ribbed plate type bridge deck and construction method
CN205711743U (en) * 2016-06-12 2016-11-23 温州市交通投资集团有限公司 A kind of steel concrete combined bridge deck of dry and wet seam
CN106049255A (en) * 2016-07-22 2016-10-26 邵旭东 Simple-support variant-continuous structure of steel-ultrahigh performance concrete light composite beam and construction method for same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108385522A (en) * 2018-01-17 2018-08-10 中交第二航务工程局有限公司 Prefabrication and assembly construction UHPC combination beams and rapid constructing method
CN110106772A (en) * 2019-04-16 2019-08-09 河海大学 A kind of highway clod wash U-shaped composite beam bridge and its construction method

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Application publication date: 20170531