CN102912728A - Method for filling non-tight-contact parts of steel-concrete composite beams through rear grouting and filling structure - Google Patents
Method for filling non-tight-contact parts of steel-concrete composite beams through rear grouting and filling structure Download PDFInfo
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- CN102912728A CN102912728A CN2012103964052A CN201210396405A CN102912728A CN 102912728 A CN102912728 A CN 102912728A CN 2012103964052 A CN2012103964052 A CN 2012103964052A CN 201210396405 A CN201210396405 A CN 201210396405A CN 102912728 A CN102912728 A CN 102912728A
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Abstract
The invention discloses a method for filling non-tight-contact parts of steel-concrete composite beams through rear grouting and a filling structure. The method comprises the following steps: 1, arranging grouting areas and reserved late poured areas on a top plate of a steel beam at a certain interval; 2, arranging a grouting pipe between adjacent two grouting areas, and respectively arranging a paste inlet pipe and a paste outlet pipe on the outermost two grouting areas; 3, hoisting precast concrete bridge deck slabs; 4, pouring the reserved late poured areas; and 5, filling cement paste into the paste inlet pipe until the cement paste flows out of the paste outlet pipe, and tightly plugging the mouths of the paste inlet pipe and the paste outlet pipe by using wooden plugs, so that after the cement paste is solidified in each grouting area, an operation of filling non-tight-contact parts of steel-concrete composite beams is completed. According to the invention, non-tight-contact parts of a steel beam contacted with a bridge deck slab are filled through using a rear grouting technique and setting grouting areas, so that the complete combination of the steel beam and the bridge deck slab is realized, the top plate of the steel beam is completely wrapped for corrosion protection, and a vertical load exerted on the bridge deck slab is uniformly transferred to the top plate of the steel plate through close-grained paste.
Description
Technical field
The present invention relates to technical field of bridge construction, be specifically related to a kind of steel reinforced concrete bondbeam not closely connected position post-grouting and enrich method and enrich structure.
Technical background
In the bridge construction field, the steel reinforced concrete bondbeam combines the advantage of girder steel and concrete beam preferably, tension, anti-bending strength and the concrete compressive property of steel have not only been given full play to, simultaneously bituminous concrete has better guaranteed the bridge deck quality with the combination of concrete slab, and the steel reinforced concrete bondbeam also has excellent earthquake resistance, from heavy and light, the characteristics such as quick and convenient of constructing.Steel reinforced concrete bondbeam structure applications is increasingly extensive.
The form of structure that contacts with bridge deck " face-face " for girder steel top flange top board, girder steel and bridge deck are combined into whole method: after bridge deck are in place, the back pouring hole concrete of reserving on the cast in situs bridge deck is built the WELDING STUDS on the girder steel top board wherein.Reserve when bridge deck are installed the periphery of back pouring hole and girder steel roof perimeter all need stick rubber strip make bridge deck can steadily drop on the girder steel top board and the sealing back pouring hole around form after the pouring concrete side form.Except cast-in-place hole, the zone that rubber strip surrounds is the not closely connected white space of beam and plate, has caused like this bridge deck and girder steel top board to break away from, and both has been unfavorable for the anticorrosion of girder steel top plate portion, is unfavorable for again bridge floor load going down.
Summary of the invention
The objective of the invention is for above-mentioned technical problem, provide a kind of steel reinforced concrete bondbeam not closely connected position post-grouting to enrich method and substantial structure, the method and structure can make girder steel and bondbeam realize being combined completely.
For realizing this purpose, method is enriched in the designed steel reinforced concrete bondbeam not closely connected position post-grouting of the present invention, and it comprises the steps:
Step 1: on girder steel top board left and right edges, vertical rubber strip is set respectively, between described two vertical rubber strips many transverse rubber bars are set evenly, water the district after described two vertical rubber strips and many transverse rubber bars surround a plurality of grout compartments and reservation, water the district after described grout compartment and the reservation and be arranged alternately;
Step 2: above-mentioned a plurality of grout compartments are interconnected by grout pipe is set successively, are positioned on outermost two grout compartments and also are respectively equipped with inlet pipe and outlet pipe;
Step 3: hoisting prefabricated concrete slab, the precast concrete bridge deck are installed on vertical rubber strip and the transverse rubber bar, the support zone of precast concrete bridge deck is in the top of grout compartment;
Step 4: after precast concrete bridge deck liftings is finished, water the district after building reservation, be combined by the concrete that waters the district after being cast in reservation between the support portion of girder steel top board and precast concrete bridge deck;
Step 5: pour into cement paste to inlet pipe, until outlet pipe flows out till the cement paste, the mouth of pipe with stopper jam-pack inlet pipe and outlet pipe, after cement paste solidifies in each grout compartment, cement paste enriches the gap of the support portion of grout compartment and precast concrete bridge deck, namely finishes not enriching of closely connected position of steel reinforced concrete bondbeam.
In the described step 5, at first clear water is poured into from inlet pipe, clean the grout compartment, after outlet pipe flows out clear water, in inlet pipe, pour into cement paste again.
In the described step 4, after each is reserved, water first the district a plurality of WELDING STUDS are set, then build.
In the described step 5, the composition of cement paste is cement, water and grouting agent, and three kinds of composition proportion are 1:0.34:0.1.
In the described step 2, the body of described grout pipe waters the district after passing reservation.
Structure is enriched in a kind of steel reinforced concrete bondbeam not closely connected position post-grouting, it comprises precast concrete bridge deck and girder steel top board, it also comprises vertical rubber strip of being arranged on the girder steel top board left and right edges, evenly is arranged on many transverse rubber bars between two vertical rubber strips, described two vertical rubber strips and many transverse rubber bars surround a plurality of grout compartments that are arranged alternately and reserve after water the district, described precast concrete bridge deck are installed on vertical rubber strip and the transverse rubber bar, wherein, the support zone of precast concrete bridge deck is in the top of grout compartment; Be combined by the concrete that waters after being cast in reservation in the district between the support portion of above-mentioned girder steel top board and precast concrete bridge deck; Enrich by cement paste is set in the gap of the support portion of described grout compartment and precast concrete bridge deck.
Water after described each reservation a plurality of WELDING STUDS are set in the district.
Described a plurality of grout compartment is interconnected by grout pipe is set successively, is positioned on outermost two grout compartments also to be respectively equipped with inlet pipe and outlet pipe; Enrich the gap of the support portion of grout compartment and precast concrete bridge deck by in inlet pipe, pouring into cement paste.
The present invention arranges the grout compartment by the post-grouting technology enriches the not closely connected position of girder steel and bridge deck, realized the complete combination of girder steel and bridge deck, with the girder steel top board all parcel carry out anticorrosionly, and the suffered vertical load of bridge deck evenly is delivered on the girder steel top board by closely knit slurry.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 be among Fig. 1 A-A to section structure schematic diagram (WELDING STUDS is not shown among the figure);
Fig. 3 be among Fig. 2 B-B to section structure schematic diagram (among the figure vertically rubber strip do not show);
Fig. 4 be among Fig. 3 C-C to the section structure schematic diagram;
Wherein, water district, 5-inlet pipe, 6-grout pipe, 7-vertical rubber strip, 8-outlet pipe, 9-WELDING STUDS, 10-grout compartment, 11-transverse rubber bar after 1-girder steel, 2-precast concrete bridge deck, 2.1-support portion, 3-girder steel top board, the 4-reservation.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples:
Structure is enriched in steel reinforced concrete bondbeam not closely connected position post-grouting shown in Fig. 1 ~ 4, it comprises precast concrete bridge deck 2 and girder steel top board 3, it also comprises the vertical rubber strip 7 that is arranged on girder steel top board 3 left and right edges, evenly be arranged on many transverse rubber bars 11 between two vertical rubber strips 7, article two, vertical rubber strip 7 and many transverse rubber bars 11 surround a plurality of grout compartments 10 that are arranged alternately and reserve after water district 4, precast concrete bridge deck 2 are installed on vertical rubber strip 7 and the transverse rubber bar 11, wherein, the support portion 2.1 of precast concrete bridge deck 2 is positioned at the top of grout compartment 10; Be combined by the concrete that waters after being cast in reservation in the district 4 between the support portion 2.1 of above-mentioned girder steel top board 3 and precast concrete bridge deck 2; Enrich by cement paste is set with the gap of the support portion 2.1 of precast concrete bridge deck 2 described grout compartment 10.
In the technique scheme, water in the district 4 after each is reserved a plurality of WELDING STUDS 9 are set.
In the technique scheme, a plurality of grout compartments 10 are interconnected by grout pipe 6 is set successively, are positioned on outermost two grout compartments 10 also to be respectively equipped with inlet pipe 5 and outlet pipe 8; Enrich the gap of the support portion 2.1 of grout compartment 10 and precast concrete bridge deck 2 by in inlet pipe 5, pouring into cement paste.
Method is enriched in a kind of steel reinforced concrete bondbeam not closely connected position post-grouting, and it comprises the steps:
Step 1: vertical rubber strip 7 is set respectively on girder steel top board 3 left and right edges, between described two vertical rubber strips 7 many transverse rubber bars 11 are set evenly, water district 4 after described two vertical rubber strips 7 and many transverse rubber bars 11 surround a plurality of grout compartments 10 and reservation, water district 4 after described grout compartment 10 and the reservation and be arranged alternately;
Step 2: above-mentioned a plurality of grout compartments 10 are interconnected by grout pipe 6 is set successively, are positioned on outermost two grout compartments 10 and also are respectively equipped with inlet pipe 5 and outlet pipe 8, the body of described grout pipe 6 waters district 4 after passing reservation;
Step 3: hoisting prefabricated concrete slab 2, precast concrete bridge deck 2 are installed on vertical rubber strip 7 and the transverse rubber bar 11, the support portion 2.1 of precast concrete bridge deck 2 is positioned at the top of grout compartment 10;
Step 4: after precast concrete bridge deck 2 lifting is finished, water district 4 after building reservation, distinguish 4 concrete and be combined by watering after being cast in reservation between the support portion 2.1 of girder steel top board 3 and precast concrete bridge deck 2;
Step 5: pour into cement paste to inlet pipe 5, until outlet pipe 8 flows out till the cement paste, the mouth of pipe with stopper jam-pack inlet pipe 5 and outlet pipe 8, after cement paste solidifies in each grout compartment 10, cement paste enriches the gap of the support portion 2.1 of grout compartment 10 and precast concrete bridge deck 2, namely finishes not enriching of closely connected position of steel reinforced concrete bondbeam.
In the step 5 of technique scheme, at first clear water is poured into from inlet pipe 5, clean grout compartment 10, after outlet pipe 8 flows out clear water, in inlet pipe 5, pour into cement paste again.Can remove like this residue in the grout compartment 10, be conducive to cement paste building in grout compartment 10, guarantee the effect of antirust processing of steel plate later stage.
In the step 4 of technique scheme, after each is reserved, water first a plurality of WELDING STUDS 9 of district's 4 welding, then build.WELDING STUDS 9 is used for guaranteeing the strong bonded of precast concrete bridge deck 2 and girder steel 1.
In the step 5 of technique scheme, the composition of cement paste is cement, water and HL-P grouting agent, and three kinds of composition proportion are 1:0.34:0.1.This composition has guaranteed intensity and the compactness after cement paste solidifies.
The content that this manual is not described in detail belongs to the known prior art of this area professional and technical personnel.
Claims (8)
1. method is enriched in a steel reinforced concrete bondbeam not closely connected position post-grouting, it is characterized in that it comprises the steps:
Step 1: on girder steel top board (3) left and right edges, vertical rubber strip (7) is set respectively, many transverse rubber bars (11) evenly are set between described two vertical rubber strips (7), described two vertical rubber strips (7) and many transverse rubber bars (11) water district (4) after surrounding a plurality of grout compartments (10) and reservation, water district (4) after described grout compartment (10) and the reservation and are arranged alternately;
Step 2: above-mentioned a plurality of grout compartments (10) are interconnected by grout pipe (6) is set successively, are positioned at and also are respectively equipped with inlet pipe (5) and outlet pipe (8) on outermost two grout compartments (10);
Step 3: hoisting prefabricated concrete slab (2), precast concrete bridge deck (2) are installed on vertical rubber strip (7) and the transverse rubber bar (11), the support portion (2.1) of precast concrete bridge deck (2) is positioned at the top of grout compartment (10);
Step 4: after precast concrete bridge deck (2) liftings is finished, water district (4) after building reservation, be combined by the concrete that waters district (4) after being cast in reservation between the support portion (2.1) of girder steel top board (3) and precast concrete bridge deck (2);
Step 5: pour into cement paste to inlet pipe (5), until outlet pipe (8) flows out till the cement paste, the mouth of pipe with stopper jam-pack inlet pipe (5) and outlet pipe (8), after cement paste solidifies in each grout compartment (10), cement paste enriches the gap of the support portion (2.1) of grout compartment (10) and precast concrete bridge deck (2), namely finishes not enriching of closely connected position of steel reinforced concrete bondbeam.
2. method is enriched in steel reinforced concrete bondbeam not closely connected position post-grouting according to claim 1, it is characterized in that: in the described step 5, at first clear water is poured into from inlet pipe (5), clean grout compartment (10), after outlet pipe (8) flows out clear water, in inlet pipe (5), pour into cement paste again.
3. method is enriched in steel reinforced concrete bondbeam not closely connected position post-grouting according to claim 1, it is characterized in that: in the described step 4, water district (4) first after each is reserved a plurality of WELDING STUDS (9) are set, then build.
4. method is enriched in steel reinforced concrete bondbeam not closely connected position post-grouting according to claim 1 and 2, and it is characterized in that: in the described step 5, the composition of cement paste is cement, water and grouting agent, and three kinds of composition proportion are 1:0.34:0.1.
5. method is enriched in steel reinforced concrete bondbeam not closely connected position post-grouting according to claim 1, and it is characterized in that: in the described step 2, the body of described grout pipe (6) waters district (4) after passing reservation.
6. structure is enriched in a steel reinforced concrete bondbeam not closely connected position post-grouting, it comprises precast concrete bridge deck (2) and girder steel top board (3), it is characterized in that: it also comprises the vertical rubber strip (7) that is arranged on girder steel top board (3) left and right edges, evenly be arranged on many transverse rubber bars (11) between two vertical rubber strips (7), described two vertical rubber strips (7) and many transverse rubber bars (11) surround a plurality of grout compartments (10) of being arranged alternately and reserve after water district (4), described precast concrete bridge deck (2) are installed on vertical rubber strip (7) and the transverse rubber bar (11), wherein, the support portion (2.1) of precast concrete bridge deck (2) is positioned at the top of grout compartment (10); Be combined by the concrete that waters after being cast in reservation in the district (4) between the support portion (2.1) of above-mentioned girder steel top board (3) and precast concrete bridge deck (2); Enrich by cement paste is set with the gap of the support portion (2.1) of precast concrete bridge deck (2) described grout compartment (10).
7. structure is enriched in steel reinforced concrete bondbeam not closely connected position post-grouting according to claim 6, it is characterized in that: water after described each reservation a plurality of WELDING STUDS (9) are set in the district (4).
8. structure is enriched in steel reinforced concrete bondbeam not closely connected position post-grouting according to claim 6, it is characterized in that: described a plurality of grout compartments (10) are interconnected by grout pipe (6) is set successively, are positioned at also to be respectively equipped with inlet pipe (5) and outlet pipe (8) on outermost two grout compartments (10); Enrich the gap of the support portion (2.1) of grout compartment (10) and precast concrete bridge deck (2) by in inlet pipe (5), pouring into cement paste.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396405.2A CN102912728B (en) | 2012-10-18 | 2012-10-18 | Method for filling non-tight-contact parts of steel-concrete composite beams through rear grouting and filling structure |
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| CN201210396405.2A CN102912728B (en) | 2012-10-18 | 2012-10-18 | Method for filling non-tight-contact parts of steel-concrete composite beams through rear grouting and filling structure |
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| CN102912728A true CN102912728A (en) | 2013-02-06 |
| CN102912728B CN102912728B (en) | 2014-10-01 |
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| CN105908631A (en) * | 2016-05-11 | 2016-08-31 | 中铁十四局集团第二工程有限公司 | Embedded type reinforced concrete combination part mud jacking filling device and construction method |
| RU182992U1 (en) * | 2018-06-19 | 2018-09-07 | Александр Витальевич Атанов | A device for combining a precast concrete plate of a carriageway with a metal main beam |
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| RU182992U1 (en) * | 2018-06-19 | 2018-09-07 | Александр Витальевич Атанов | A device for combining a precast concrete plate of a carriageway with a metal main beam |
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