CN203125697U - Steel pipe concrete pier plate type pre-tensioning method prestressed concrete beam prefabricated pedestal - Google Patents
Steel pipe concrete pier plate type pre-tensioning method prestressed concrete beam prefabricated pedestal Download PDFInfo
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- CN203125697U CN203125697U CN 201320148285 CN201320148285U CN203125697U CN 203125697 U CN203125697 U CN 203125697U CN 201320148285 CN201320148285 CN 201320148285 CN 201320148285 U CN201320148285 U CN 201320148285U CN 203125697 U CN203125697 U CN 203125697U
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Abstract
The utility model discloses a steel pipe concrete pier plate type pre-tensioning method prestressed concrete beam prefabricated pedestal, which comprises a foundation plate, a plurality of pre-tensioning method prestressed concrete beam bottom mold embedded parts arranged in the foundation plate, pre-tensioning method prestressed concrete beam side mold embedded parts arranged at two horizontal sides of the foundation plate and distributed along the longitudinal direction of the foundation plate, two pier seats arranged at two longitudinal ends of the foundation ends, upright piers arranged in the pier seats, two protecting walls arranged outside the pier seats, a steel track arranged outside the horizontal upper parts of the pier seats and suitable for outwards stretching and drawing cross beams to slide, a steel track arranged inside the horizontal upper parts of the pier seats and suitable for inwards stretching and drawing the cross beams to slide and a dust mat layer arranged under the foundation plate and the pier seats. The foundation plate and the pier seats are in a separate type, and the two pier seats are independent from each other. The steel pipe concrete pier plate type pre-tensioning method prestressed concrete beam prefabricated pedestal is simple in structure and reasonable in design, can provide a larger flat upright plane arranging space, is widely suitable for the pre-tensioning method prestressed concrete beams in different types, and is small in integral engineering amount and wide in application range as the number of prefabricated beams is feely arranged and main materials are reused.
Description
Technical field
The utility model relates to a kind of pretensioning prestressed concrete beam production facility technology, relates in particular to the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of a kind of steel tube concrete knoll.
Background technology
At present, divide from section form, the pretensioning prestressed concrete beam comprises T type beam, plate-girder, box beam and U-shaped beam etc., the pretensioning prestressed concrete beam is used comparatively general in China, particularly pretensioning prestressed concrete beam T type beam, plate-girder and small-sized case beam, the manufacturing of pretensioning prestressed concrete beam is one of its key in application point.Specification requirement according to the pretensioning prestressed concrete beam, precast pedestal is as beam prefabricated interior the highest civil engineering structure of frequency of utilization of pretensioning prestressed concrete, technical standard control is quite strict on the one hand, its quality is directly determining the prefabricated quality of beam, its frequent use on the other hand, particularly for the beam prefabricated pedestal of pretensioning prestressed concrete, its result of use directly determines prefabricated efficient.Precast pedestal is arranged with design directly influences the beam prefabricated quality of pretensioning prestressed concrete, safety and efficient, is the heavy difficult point of precasting yard civil engineering structure thing design.
Conventional precast pedestal generally adopts counter-force depression bar form, and depression bar considered as no lateral confinement compression member, owing to consider according to no lateral confinement depression bar, quantities is big, and be controlled by depression bar pressure at design length, be that depression bar is more long, it is more little that it can bear pressure, so a pedestal can prefabricated pretensioning prestressed concrete beam quantity of while be restricted; Simultaneously, the structure that the jack tension load is born at the scene adopts xoncrete structure more, and separately antidumping and anti-slide performance is considered according to the gravity pillar type structure in the end, causes precast pedestal armored concrete and other materials quantity big, namely discarded after construction finishes, the engineering quantities of reclaiming is big.
The utility model content
The purpose of this utility model provides a kind of simple in structure, reasonable in design, adopting integrally, substrate substitutes the counter-force depression bar, bigger flat facade arrangement space can be provided, extensively adapt to multi-form pretensioning prestressed concrete beam, the beam prefabricated quantity of pretensioning prestressed concrete can freely be set, and the reinforced concrete works consumption is little, is easy to construction and short construction period, upright pier is reusable, and overall structure satisfies the beam prefabricated pedestal of pretensioning prestressed concrete of specification requirement.
The purpose of this utility model is achieved through the following technical solutions:
The beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll of the present utility model, comprise that end face is rectangular grade slab, place the some pretensioning prestressed concrete beam bottom board built-in fittings in the grade slab, the pretensioning prestressed concrete beam side built-in fitting that places the grade slab both lateral sides vertically to arrange along grade slab, place 2 pier bases at the vertical two ends of grade slab, place the upright pier in the pier base, place the twice protecting wall in the pier base outside, place the rail of the outer stretch-drawing beam slip of adaptation on pier base lateral outer side top, place the rail of the interior stretch-drawing beam slip of adaptation of the horizontal inside upper part of pier base, place grade slab, cushion lime under the pier base;
Described upright pier comprises 2 vertically disposed concrete filled steel tube columns, level places the concrete filled steel tube bottom bracing of pier base bottom, the concrete filled steel tube diagonal brace that connects concrete filled steel tube column and concrete filled steel tube bottom bracing, level connect the flat connection of concrete filled steel tube of concrete filled steel tube column.
The technical scheme that is provided by above-mentioned the utility model as can be seen, the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll that the utility model embodiment provides, because grade slab and pier base are the split line, 2 pier bases are independent separately, grade slab can be determined principal dimensions according to pretensioning prestressed concrete beam build and prefabricated quantity, can realize the free horizontal layout of grade slab, not restraint beam build and prefabricated quantity, the flexibility that has improved horizontal layout; Pier base is set to gravity type, but adopt oblique antiform formula, effectively improve and soil body contact area, increased the soil pressure effect, increase pier base antidumping, anti-slide performance, pier base is born main tensile load simultaneously, and grade slab participates in partly bearing or not bearing tensile load as pressing plate, reduces quantities thereby cancelled depression bar; Upright pier main body adopts concrete filled steel tube, and each rod member connects the ring flange form that adopts, and pier base employing sheet stone concrete or plain concrete make things convenient for the later stage orcible entry, can realize the repeated use of upright pier concrete filled steel tube.From application example, the utility model is reasonable in design, simple in structure, safe and reliable, and it is beam prefabricated to be adapted to the less pretensioning prestressed concrete of stretching force especially.
Description of drawings
Fig. 1 is the planar structure schematic diagram of the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll of specific embodiment of the utility model;
Fig. 2 is the facade structures schematic diagram of the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll of specific embodiment of the utility model;
Fig. 3 is the A-A cross-sectional view of Fig. 2;
Fig. 4 is the B-B cross-sectional view of Fig. 2;
Fig. 5 is upright pier planar structure schematic diagram;
Fig. 6 is the facade structures schematic diagram.
Description of reference numerals:
The 1-grade slab; 2-pretensioning prestressed concrete beam bottom board built-in fitting; 3-pretensioning prestressed concrete beam side built-in fitting; The 4-pier base; 5-founds pier; The 6-protecting wall; 7-adapts to the rail that outer stretch-drawing beam slides; The rail that stretch-drawing beam slided in 8-adapted to; The 9-cushion lime; 10-concrete filled steel tube column; 11-concrete filled steel tube bottom bracing; 12-concrete filled steel tube diagonal brace; The flat connection of 13-concrete filled steel tube.
The specific embodiment
To be described in further detail the utility model embodiment below.
The beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll of the present utility model, the specific embodiment that it is preferable such as Fig. 1 are to shown in Figure 6:
Comprise that end face is rectangular grade slab 1, place the some pretensioning prestressed concrete beam bottom board built-in fittings 2 in the grade slab, the pretensioning prestressed concrete beam side built-in fitting 3 that places grade slab 1 both lateral sides vertically to arrange along grade slab 1, place 2 pier bases 4 at grade slab 1 vertical two ends, place the upright pier 5 in the pier base 4, place the twice protecting wall 6 in pier base 4 outsides, place the rail 7 of the outer stretch-drawing beam slip of adaptation on pier base 4 lateral outer side tops, place the rail 8 of the interior stretch-drawing beam slip of adaptation of pier base 4 horizontal inside upper part, place grade slab, cushion lime 9 under the pier base;
Described upright pier 5 comprises 2 vertically disposed concrete filled steel tube columns 10, level places the concrete filled steel tube bottom bracing 11 of pier base 4 bottoms, the concrete filled steel tube diagonal brace 12 that connects concrete filled steel tube column 10 and concrete filled steel tube bottom bracing 11, level connect the flat connection 13 of concrete filled steel tube of concrete filled steel tube column 10.
Described grade slab 1 is the non-reinforced concrete structure, described pier base 4 is sheet stone concrete xoncrete structure or plain concrete construction, described upright pier 5 is concrete filled steel tube, and described pier base 4, upright pier 5 are overall structure, and the bottom of described grade slab 1 and pier base 4 is provided with cushion lime 9.
Described grade slab 1 is provided with breaking joint with described pier base 4.
Described 2 pier bases 4 are independent setting mutually.
Described pier base 4 and cross section, described grade slab 1 bonding position cross section are for diminishing gradually to fixed value, and integral body is tilted back type.
The flat connection 13 of described upright pier 5 chief component concrete filled steel tube bottom bracings 11, concrete filled steel tube diagonal brace 12 and concrete filled steel tube adopts ring flange to connect.
Use the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of a kind of steel tube concrete knoll of the present utility model, bigger flat facade arrangement space can be provided, the special less pretensioning prestressed concrete beam of stretching force that adapts to, the beam prefabricated quantity of pretensioning prestressed concrete can freely be set, adopt the tilted back type gravity abutment can improve pier base antidumping antiskid kinetic force, save reinforced concrete works quantity, simultaneously main steel construction can be realized reusing, the economy that develops skill, and its design principle is:
Because grade slab and pier base are the split line, 2 pier bases and grade slab are independent separately, grade slab can be determined principal dimensions according to pretensioning prestressed concrete beam build and prefabricated quantity, can realize the free horizontal layout of grade slab, not restraint beam build and prefabricated quantity, the flexibility that has improved horizontal layout;
Pier base is set to gravity type, but adopt oblique antiform formula, effectively improve and soil body contact area, increased the soil pressure effect, increased pier base antidumping, anti-slide performance, pier base is born main tensile load simultaneously, grade slab participates in part as pressing plate and bears or do not bear tensile load, thereby from the formal counter-force depression bar of bearing counter-force specially of having cancelled, thereby reduce quantities, particularly have Xiao Zhang's pulling force pretensioning prestressed concrete beam of unfavorable geology for some zone;
Upright pier main body adopts concrete filled steel tube, and each rod member connects the ring flange form that adopts, and pier base adopts sheet stone concrete or plain concrete, makes things convenient for the later stage orcible entry, can realize the repeated use of upright pier concrete filled steel tube, saves the engineering waste, improves athletics.
In the instantiation, ground is medium packing clay under the beam making bench, bearing capacity 160kPa, so ground under this beam making bench has been carried out compacting to be handled, compacted depth 80cm, lay 30cm 37 lime earth bed course and compacting on it, bearing capacity 200kPa, ground handle and satisfy under the various operating modes beam making bench to bearing capacity and the settlement request of ground.The beam making bench grade slab is plain concrete construction, and thickness is 400mm, and planar dimension is 64m * 4.73m.2 pier bases are arranged at the vertical two ends of grade slab, and pier base is that reinforced concrete structure also and between the grade slab disconnects.Pier base length is 12.5m, is the variable cross-section form.The packaged type protecting wall is arranged in the pier base end, and protecting wall is the steel construction group welding piece.Arrange the upright pier of concrete filled steel tube in the pier base, the column of upright pier is the concrete filled steel tube of diameter 1m, arrange the concrete filled steel tube bottom bracing in the pier base bottom, the bottom bracing diameter of steel tube is 300mm, adopt diameter 300mm concrete filled steel tube diagonal brace to connect between bottom bracing and the column, the flat connection of 2 diameter 300mm concrete filled steel tubes of column horizontal direction employing.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (6)
1. beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll, it is characterized in that, comprise that end face is rectangular grade slab (1), place the some pretensioning prestressed concrete beam bottom board built-in fittings (2) in the grade slab, the pretensioning prestressed concrete beam side built-in fitting (3) that places grade slab (1) both lateral sides vertically to arrange along grade slab (1), place vertically 2 pier bases (4) at two ends of grade slab (1), place the upright pier (5) in the pier base (4), place the twice protecting wall (6) in pier base (4) outside, place the rail (7) of the outer stretch-drawing beam slip of adaptation on pier base (4) lateral outer side top, place the laterally rail (8) of the interior stretch-drawing beam slip of adaptation of inside upper part of pier base (4), place grade slab, cushion lime under the pier base (9);
Described upright pier (5) comprises 2 vertically disposed concrete filled steel tube columns (10), level places the concrete filled steel tube bottom bracing (11) of pier base (4) bottom, the concrete filled steel tube diagonal brace (12) that connects concrete filled steel tube column (10) and concrete filled steel tube bottom bracing (11), level connect the flat connection of concrete filled steel tube (13) of concrete filled steel tube column (10).
2. the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll according to claim 1, it is characterized in that, described grade slab (1) is the non-reinforced concrete structure, described pier base (4) is sheet stone concrete xoncrete structure or plain concrete construction, described upright pier (5) is concrete filled steel tube, described pier base (4), upright pier (5) are overall structure, and the bottom of described grade slab (1) and pier base (4) is provided with cushion lime (9).
3. the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll according to claim 1 is characterized in that, described grade slab (1) is provided with breaking joint with described pier base (4).
4. the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll according to claim 1 is characterized in that, described 2 pier bases (4) are independent setting mutually.
5. the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll according to claim 2 is characterized in that, described pier base (4) and cross section, described grade slab (1) bonding position cross section are for diminishing gradually to fixed value, and integral body is tilted back type.
6. the beam prefabricated pedestal of the board-like pretensioning prestressed concrete of steel tube concrete knoll according to claim 2, it is characterized in that the flat connection of described upright pier (5) chief component concrete filled steel tube bottom bracing (11), concrete filled steel tube diagonal brace (12) and concrete filled steel tube (13) adopts ring flange to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320148285 CN203125697U (en) | 2013-03-28 | 2013-03-28 | Steel pipe concrete pier plate type pre-tensioning method prestressed concrete beam prefabricated pedestal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320148285 CN203125697U (en) | 2013-03-28 | 2013-03-28 | Steel pipe concrete pier plate type pre-tensioning method prestressed concrete beam prefabricated pedestal |
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| CN203125697U true CN203125697U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320148285 Expired - Lifetime CN203125697U (en) | 2013-03-28 | 2013-03-28 | Steel pipe concrete pier plate type pre-tensioning method prestressed concrete beam prefabricated pedestal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017167804A1 (en) * | 2016-04-01 | 2017-10-05 | Progress Holding A.G. | Mobile clamping device |
-
2013
- 2013-03-28 CN CN 201320148285 patent/CN203125697U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017167804A1 (en) * | 2016-04-01 | 2017-10-05 | Progress Holding A.G. | Mobile clamping device |
| AT518483B1 (en) * | 2016-04-01 | 2019-10-15 | Progress Holding Ag | Mobile tensioning device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
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| CX01 | Expiry of patent term |