CN205062832U - Different bottom width of non - equal span is adjustable, and T type roof beam prefabricates pedestal - Google Patents
Different bottom width of non - equal span is adjustable, and T type roof beam prefabricates pedestal Download PDFInfo
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- CN205062832U CN205062832U CN201520750814.7U CN201520750814U CN205062832U CN 205062832 U CN205062832 U CN 205062832U CN 201520750814 U CN201520750814 U CN 201520750814U CN 205062832 U CN205062832 U CN 205062832U
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Abstract
The utility model discloses a different bottom width of non - equal span is adjustable, and T type roof beam prefabricates pedestal relates to the prefabricated pedestal of roof beam for how the solution sets up the pedestal in limited place prefabricated in order to satisfy different span T roof beams, satisfies the requirement of production progress. It includes the footing foundation, is located the pedestal basis on the footing foundation and is located the pedestal plane on the pedestal basis, in the footing foundation pre -buried have be used for the footing foundation reinforcing bar of provided groove steel to the draw hole, in the pedestal basis pre -buried have be used for reserving the PVC pipe of template to the draw hole, the planar length of pedestal sets up according to required prefabricated long T roof beam, and the width sets up according to the narrow T breast width of required prefabrication. Through providing an adjustable T type roof beam prefabricated pedestal, realize the adjustable T type roof beam of the different bottom width of non - equal span of prefabricated different spans, different bottom width on same pedestal.
Description
Technical field
The utility model relates to girder prefabricated pedestal, specifically, is that a kind of non-grade is across the adjustable T-shaped girder prefabricated pedestal of different bottom width.
Background technology
Precast T-Beam bridge, due to can factorial praluction, adopts bridging equipment to set up, and has that safety is high, easy and simple to handle, quality controllable, low cost and other advantages, is widely used in during multispan beam type bridge builds.Current, Precast T-Beam normally adopts post stretching to produce, namely on the pedestal of beam making field, the operations such as reinforcing bar binding, model sheetinstallat, concreting, pre-stress construction are completed, then erection is lifted, above production process all needs to complete on pedestal, and often according to the span of T beam and beam bottom width degree determination pedestal size and detailing requiments when abutment design is carried out at scene.
Common Precast T-Beam have 20m across, 30m across, 40m across, 50m across several span, corresponding bottom width is not identical yet, usual way arranges corresponding beam making bench for the beam of each span type, this laying thinking needs enough large beam making field ground, needs to arrange enough pedestals beam prefabricated to meet different spans T.
Patent document CN202622992U(applying date 2012.05.15), the name that utility model is created is called universal module detachable adjustable steel component post stretching T girder prefabricated pedestal.This application scheme discloses, and lime-soil cushion Ground Treatment is provided with multiple concrete foundation block, and concrete foundation block is provided with the lumps of wood, and the lumps of wood is equipped with steel plate, and steel plate both sides are provided with channel-section steel and steel plate combination integrally; Steel plate two ends are provided with at least one T beam pedestal termination, and T beam pedestal termination is provided with girders support system.It adopts adjustable support system, namely can adjust the lumps of wood or the concrete foundation block of height, not only inverted camber is fast easy to adjust, and in very long rainy season construction, also can serve to the differential settlement of pedestal the effect remedied, the requirement of geological conditions is reduced.
Although it refer to the lumps of wood, the lumps of wood mentioned in this technical scheme is used to the differential settlement remedying pedestal.It has the following disadvantages, and needs enough large beam making field ground, and in mountain terrain, builds place limited, can not arrange all types of pedestal simultaneously.
Patent document CN102717431B(applying date 2012.07.06), the name that utility model is created is called a kind of precast beam production method.This application scheme discloses following steps: a, obtain the pedestal structure of following structure, and described pedestal structure comprises ground and is positioned at the bed course on ground, bed course is provided with fixing concrete pedestal and adjustable steel pedestal; The model of b, basis precast beam to be built, regulates pedestal structure, determines position to be built, and the pedestal structure regulated is met and supports requirement; The position of building that c, basis are determined, this position is laid the steel plate as bed die, then installs side template; D, make skeleton reinforcing steel bar and through building, form removal, maintenance, stretch-draw and lifting, obtain required precast beam.It provides a kind of pedestal structure possessing regulatory function, and in pedestal structure, steel pedestal is all after retraction chute, can mate with the width of precast beam minimum dimension, can width coupling maximum sized with precast beam when steel pedestal all stretches out.
Although it can refer to channel-section steel, but, the channel-section steel mentioned in this technical scheme is used to make the steel pedestal chute that slides out still can be fixed on channel-section steel by journal stirrup to during farthest, make steel pedestal upper surface and concrete pedestal upper surface flush, the precast beam for different model is produced, in addition, track length direction is mentioned vertical with concrete pedestal length direction in embodiment, by reference to the accompanying drawings, can draw thus, the length direction being positioned at the channel-section steel of chute is also vertical with concrete pedestal length direction.And the installation channel-section steel of sidewall is used to arrange grouting pipe.This technical scheme adopts the both sides of concrete pedestal to be arranged at intervals with the chute of rectangle, the chute mutual dislocation of concrete pedestal both sides is arranged, the chute of concrete pedestal medium position along its length equidistantly arranges and one-sided chute spacing is 0.7m, interval is set in the both sides of concrete pedestal, the chute of mutual dislocation, when solving the problem of producing for the precast beam of different model, is set up chute itself and is brought new problem to construction speed again.
In sum, it is beam prefabricated to meet different spans T how pedestal is set in limited place, meets the requirement of manufacturing schedule, become the technical problem that must solve.
Summary of the invention
The utility model object be intended to provide a kind of on same pedestal prefabricated different spans, different bottom width non-etc. across the adjustable T-shaped girder prefabricated pedestal of different bottom width.For realizing above-mentioned technical purpose, the technical solution adopted in the utility model is as follows:
A kind of non-grade is across the adjustable T-shaped girder prefabricated pedestal of different bottom width, comprise footing foundation, the pedestal plane being positioned at the pedestal basis on footing foundation and being positioned on pedestal basis, be embedded with for the footing foundation reinforcing bar of reserved channel-section steel to pulling eye in described footing foundation, be embedded with in described pedestal basis for the pvc pipe of reserved template to pulling eye, the length of described pedestal plane is arranged by required prefabricated long T-beam, width is arranged by required prefabricated narrow T beam bottom width, and described pedestal plane bilateral symmetry is provided with the first channel-section steel arranged along pedestal plane length direction; Described pedestal plane both sides are separately installed with the second channel-section steel with the first channel-section steel coupling.
Adopt the utility model of technique scheme, the first, pedestal length meets maximum span T beam, and width carries out pedestal size design by minimum bottom width T beam, has adapted to the needs that on same pedestal prefabricated different spans, different bottom width T are beam prefabricated.The second, reduce pedestal floor space, on the basis not increasing pedestal quantity, can the T beam of prefabricated different size, the T being specially adapted to limited area, place is beam prefabricated.3rd, achieve width adjusting at the bottom of beam by the pedestal plane stage of broadening.4th, use common bed to realize the prefabricated of multiple T beam.
Further restriction, two ends, described pedestal basis are provided with Extended chemotherapy, described Extended chemotherapy at least comprises the first amplification basis for placing long T beam, for placing short T beam second amplifies basis, first amplifies upper Φ 16 reinforced mesh laying one deck 15cm*15cm in basis, and second amplifies upper Φ 16 reinforced mesh laying one deck 15cm*15cm in basis.
Extended chemotherapy is set up at two ends, pedestal basis, Extended chemotherapy is laid Φ 16 reinforced mesh of one deck 15cm*15cm, on the one hand, reinforces T-shaped girder prefabricated pedestal, on the other hand, occurs cracking after preventing building shaping.
In addition, the technical program utilizes pre-buried pvc pipe to reserve template to pulling eye, is convenient to later stage T-shaped girder prefabricated pedestal both sides and is connected and fixed template.
Further restriction, described footing foundation reinforcing bar comprises the first base reinforcing bar for imbedding footing foundation, extend upward footing foundation plane the second base reinforcing bar and for connect channel-section steel channel-section steel to drawing reinforcing bar, described reserved channel-section steel is 1.0 to 1.2cm to the aperture of pulling eye, spacing 30cm, described pedestal planar cross section is provided with for passing channel-section steel to the channel-section steel of pulling eye to drawing reinforcing bar.
Adopt footing foundation reinforcing bar, reasonably reserved channel-section steel is to pulling eye, utilizing channel-section steel to drawing reinforcing bar, the first channel-section steel and the second channel-section steel to be fixed by M20 high strength exploitation, completing pedestal plane and broadening.
In order to improve the fastness of T-shaped girder prefabricated pedestal entirety, when design footing foundation reinforcing bar, reinforcing bar is basis from footing foundation to pedestal, then to pedestal plane, whole precast pedestal is connected into an entirety.
When long T is beam prefabricated complete time, need pedestal plane width to change back foundation width, directly lower second channel-section steel of dismounting, to adapt to the prefabricated needs of short beam.
Compared to existing technology, technological operation is simple, speed of application is fast for the utility model, reduces the quantity of temporary engineering, reduces cost.
Accompanying drawing explanation
The nonlimiting examples that the utility model can be provided by accompanying drawing further illustrates;
Fig. 1 is that a kind of non-grade of the utility model is across the adjustable T-shaped girder prefabricated pedestal top view of different bottom width;
Fig. 2 is that a kind of non-grade of the utility model is across the adjustable T-shaped girder prefabricated pedestal elevation of different bottom width;
Fig. 3 is the utility model footing foundation reinforcing bar schematic diagram;
Fig. 4 is schematic diagram before a kind of non-grade of the utility model broadens across the adjustable T-shaped girder prefabricated pedestal pedestal plane of different bottom width;
Fig. 5 is schematic diagram after a kind of non-grade of the utility model broadens across the adjustable T-shaped girder prefabricated pedestal pedestal plane of different bottom width;
Fig. 6 is the partial enlarged drawing of A in Fig. 5;
Fig. 7 is the utility model reinforced mesh schematic diagram;
Critical element symbol description is as follows:
T beam 1, footing foundation 2, pedestal basis 3, Extended chemotherapy 4, first amplifies basis 51, second amplifies basis 52, hole for hoist 6, channel-section steel is to pulling eye 7, and template is to pulling eye 8, footing foundation reinforcing bar 9, first base reinforcing bar 10, second base reinforcing bar 11, channel-section steel to drawing reinforcing bar 12, the first channel-section steel 13, second channel-section steel 14, reinforced mesh 15, concrete hardened face 16.
Detailed description of the invention
In order to make those skilled in the art can understand the utility model better, below in conjunction with drawings and Examples, technical solutions of the utility model are further illustrated.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Fig. 7, a kind of non-grade is across the adjustable T-shaped girder prefabricated pedestal of different bottom width, comprise footing foundation 2, the pedestal plane being positioned at the pedestal basis 3 on footing foundation 2 and being positioned on pedestal basis 3, be embedded with for the footing foundation reinforcing bar 9 of reserved channel-section steel to pulling eye 7 in footing foundation 2, be embedded with for the pvc pipe of reserved template to pulling eye 8 in pedestal basis 3, the length of pedestal plane is arranged by required prefabricated long T-beam 1, width is arranged by required prefabricated narrow T beam 1 bottom width, pedestal plane bilateral symmetry is provided with the first channel-section steel 13 arranged along pedestal plane length direction, pedestal plane both sides are separately installed with the second channel-section steel 14 mated with the first channel-section steel 13.
3 two ends, pedestal basis are provided with Extended chemotherapy 4, Extended chemotherapy 4 comprises the first amplification basis 51 for placing long T beam 1, for placing vice-minister T beam 1 second amplifies basis 52, for placing short T beam 1 the 3rd amplifies basis (diagram does not mark), first amplifies Φ 16 reinforced mesh 15 basis 51 being laid one deck 15cm*15cm, second amplifies Φ 16 reinforced mesh the 15, three basis 52 being laid one deck 15cm*15cm amplifies upper Φ 16 reinforced mesh 15 laying one deck 15cm*15cm in basis.
Footing foundation reinforcing bar 9 comprises the first base reinforcing bar 10 for imbedding footing foundation 2, extend upward footing foundation 2 plane the second base reinforcing bar 11 and for connect channel-section steel channel-section steel to drawing reinforcing bar 12, reserved channel-section steel is 1.0 to 1.2cm to the aperture of pulling eye 7, spacing 30cm, pedestal planar cross section is provided with for passing channel-section steel to the channel-section steel of pulling eye 7 to drawing reinforcing bar 12.It should be noted that, footing foundation 2 is lower than concrete hardened face 16.
Specific construction process is as follows,
With the T beam of simultaneously prefabricated long 2000cm, bottom width 40cm, three kinds of T beams of the T beam of the T beam of long 3000cm, bottom width 50cm and long 4000cm, bottom width 60cm are example.
A kind of non-grade is as follows across the adjustable T-shaped girder prefabricated pedestal concrete construction method of different bottom width, comprises the following steps:
Step one, builds the front preparatory stage, and select suitable Liang Chang place, fall trees, temporary drainage, finds out underground utilities, and underground utilities are protected, levelling of the land and curing.
Step 2, the footing foundation construction stage, footing foundation 2 excavates, and---pre-buried for the footing foundation reinforcing bar 9 of reserved channel-section steel to pulling eye 7---footing foundation 2 is built.
In step 2, footing foundation reinforcing bar 9 comprises the first base reinforcing bar 10 for imbedding footing foundation, extend upward footing foundation plane the second base reinforcing bar 11 and for connect channel-section steel channel-section steel to drawing reinforcing bar 12, reserved channel-section steel is 1.0 to 1.2cm to the aperture of pulling eye 7, spacing 30cm, pedestal planar cross section is provided with for passing channel-section steel to the channel-section steel of pulling eye 7 to drawing reinforcing bar 12.
Step 3, in the pedestal foundation construction stage, pedestal basis 3 reinforcement installation are---pre-buried for the pvc pipe of reserved template to pulling eye 8---, and pedestal basis 3 is built.
In step 3,3 two ends, pedestal basis are provided with and expand base 4, Extended chemotherapy 4 comprises the first amplification basis 51 of the T beam 1 for placing long 4000cm, for placing the T beam 1 of long 3000cm second amplifies basis 52, for placing the T beam 1 of long 2000cm the 3rd amplifies basis (diagram does not mark), first amplifies Φ 16 reinforced mesh 15 basis 51 being laid one deck 15cm*15cm, second amplifies Φ 16 reinforced mesh the 15, three basis 52 being laid one deck 15cm*15cm amplifies upper Φ 16 reinforced mesh 15 laying one deck 15cm*15cm in basis; Pre-buried pvc pipe diameter is 3cm, spacing 150cm.
Step 4, the pedestal plane construction stage, the length of pedestal plane is arranged by the T beam 1 of required prefabricated long 4000cm, and width is arranged by T beam 1 bottom width of required prefabricated 40cm, and pedestal plane bilateral symmetry is provided with the first channel-section steel 13 arranged along pedestal plane length direction.
In step 4, basic plane adopts C25 concreting, and Extended chemotherapy adopts C30 concreting, and the wide * of long * of Extended chemotherapy is high is respectively 200cm*200cm*60cm.Form concrete hardened face 16.
Step 5, the reserving hole design stage, reserving hole comprises hole for hoist 6, channel-section steel to pulling eye 7 and template to pulling eye 8; Hole for hoist 6 is arranged on pedestal plane inward at both ends 130cm place, and be 30cm*15cm square hole, channel-section steel is made up of footing foundation reinforcing bar 9 pulling eye 7, and template is made up of pre-buried pvc pipe pulling eye 8.
Step 6, pedestal plane broadens the stage, the width of pedestal plane is arranged by T beam 1 bottom width of required prefabricated 40cm, need to carry out widening T beam 1 bottom width that 20cm could meet prefabricated bottom width 60cm, pedestal plane both sides are installed the second channel-section steel 14(mated with the first channel-section steel 13 respectively and be it should be noted that, now, the second channel-section steel employing 10cm is wide).
T-shaped girder prefabricated pedestal in the present embodiment is applicable to the T-shaped beam of simultaneously building three kinds of sizes, improves the bearing capacity to T-shaped beam, avoids differential settlement.
The non-grade of one provided the utility model above, across the adjustable T-shaped girder prefabricated pedestal of different bottom width, is described in detail.The explanation of specific embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (3)
1. a non-grade is across the adjustable T-shaped girder prefabricated pedestal of different bottom width, it is characterized in that, comprise footing foundation, the pedestal plane being positioned at the pedestal basis on footing foundation and being positioned on pedestal basis, be embedded with for the footing foundation reinforcing bar of reserved channel-section steel to pulling eye in described footing foundation, be embedded with in described pedestal basis for the pvc pipe of reserved template to pulling eye, the length of described pedestal plane is arranged by required prefabricated long T-beam, width is arranged by required prefabricated narrow T beam bottom width, described pedestal plane bilateral symmetry is provided with the first channel-section steel arranged along pedestal plane length direction, described pedestal plane both sides are separately installed with the second channel-section steel with the first channel-section steel coupling.
2. the non-grade of one according to claim 1 is across the adjustable T-shaped girder prefabricated pedestal of different bottom width, it is characterized in that, two ends, described pedestal basis are provided with Extended chemotherapy, described Extended chemotherapy at least comprises the first amplification basis for placing long T beam, for placing short T beam second amplifies basis, first amplifies upper Φ 16 reinforced mesh laying one deck 15cm*15cm in basis, and second amplifies upper Φ 16 reinforced mesh laying one deck 15cm*15cm in basis.
3. the non-grade of one according to claim 1 and 2 is across the adjustable T-shaped girder prefabricated pedestal of different bottom width, it is characterized in that, described footing foundation reinforcing bar comprises the first base reinforcing bar for imbedding footing foundation, extend upward footing foundation plane the second base reinforcing bar and for connect channel-section steel channel-section steel to drawing reinforcing bar, described reserved channel-section steel is 1.0 to 1.2cm to the aperture of pulling eye, spacing 30cm, described pedestal planar cross section is provided with for passing channel-section steel to the channel-section steel of pulling eye to drawing reinforcing bar.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520750814.7U CN205062832U (en) | 2015-09-25 | 2015-09-25 | Different bottom width of non - equal span is adjustable, and T type roof beam prefabricates pedestal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520750814.7U CN205062832U (en) | 2015-09-25 | 2015-09-25 | Different bottom width of non - equal span is adjustable, and T type roof beam prefabricates pedestal |
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| CN205062832U true CN205062832U (en) | 2016-03-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178352A (en) * | 2015-09-25 | 2015-12-23 | 重庆建工市政交通工程有限责任公司 | Bench for prefabricating adjustable T-type beams with non-equal spans and different bottom widths and construction method of bench |
| CN106976157A (en) * | 2017-04-20 | 2017-07-25 | 南昌大学 | A kind of post stretching precast beam pedestal for being applicable different length and cross sectional shape |
| CN109109155A (en) * | 2018-10-22 | 2019-01-01 | 湖南路桥建设集团有限责任公司 | A kind of installation method and structure of the combined steel moald-cavity pedestal of assembled |
| CN109397486A (en) * | 2018-11-14 | 2019-03-01 | 中交公局桥隧工程有限公司 | A kind of mobile spigot-and-socket fashioned iron pedestal structure |
| CN110788984A (en) * | 2019-10-28 | 2020-02-14 | 中建三局基础设施建设投资有限公司 | Precast beam making pedestal side width device and implementation method thereof |
-
2015
- 2015-09-25 CN CN201520750814.7U patent/CN205062832U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178352A (en) * | 2015-09-25 | 2015-12-23 | 重庆建工市政交通工程有限责任公司 | Bench for prefabricating adjustable T-type beams with non-equal spans and different bottom widths and construction method of bench |
| CN105178352B (en) * | 2015-09-25 | 2018-11-30 | 重庆建工市政交通工程有限责任公司 | One kind is non-equal across the adjustable T-type girder prefabricated pedestal construction method of different bottom width |
| CN106976157A (en) * | 2017-04-20 | 2017-07-25 | 南昌大学 | A kind of post stretching precast beam pedestal for being applicable different length and cross sectional shape |
| CN109109155A (en) * | 2018-10-22 | 2019-01-01 | 湖南路桥建设集团有限责任公司 | A kind of installation method and structure of the combined steel moald-cavity pedestal of assembled |
| CN109397486A (en) * | 2018-11-14 | 2019-03-01 | 中交公局桥隧工程有限公司 | A kind of mobile spigot-and-socket fashioned iron pedestal structure |
| CN110788984A (en) * | 2019-10-28 | 2020-02-14 | 中建三局基础设施建设投资有限公司 | Precast beam making pedestal side width device and implementation method thereof |
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