CN207846842U - The prefabricated T plate cellular construction of post-tensioned prestressing segmented assembly and T plate structure - Google Patents
The prefabricated T plate cellular construction of post-tensioned prestressing segmented assembly and T plate structure Download PDFInfo
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- CN207846842U CN207846842U CN201721791110.XU CN201721791110U CN207846842U CN 207846842 U CN207846842 U CN 207846842U CN 201721791110 U CN201721791110 U CN 201721791110U CN 207846842 U CN207846842 U CN 207846842U
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Abstract
The utility model discloses a kind of prefabricated T plate cellular construction of post-tensioned prestressing segmented assembly and T plate structure, the beam cross-section at the prefabricated T plate both ends of segmented assembly is prefabricated with horizontal end plate, and shear connector is offered on the horizontal end plate and plate end face of prefabricated T plate one end；The prefabricated T plate of segmented assembly stays the presstressed reinforcing steel duct set for installing post-tensioned prestressing muscle on the beam perpendicular to plate along the longitudinal direction.The utility model creatively uses prestressing force crimp technology, in the diaphragm plate upper edge depth of section arranged for interval straight hole road of T plate both ends setting, the interspersed and short presstressed reinforcing steel of stretch-draw anchor, finally intert shaped form presstressed reinforcing steel and the tensioning of elongated arrangement again, adjacent two T plate segment is crimped together using prestressing force, it is prestressed to there is the globality for having ensured structure in stitching portion, the problems such as piece that Precast Concrete Segmental Bridges are likely to occur cracks, structure stress is discontinuous is effectively overcomed, the practicability of structure is substantially increased.
Description
Technical field
The utility model is related to a kind of prefabricated T plate structures of post-tensioned prestressing segmented assembly, belong to architectural engineering technology neck
Domain.
Background technology
As shown in Figure 1, T plate structure is a kind of plate（1’）, beam（2’）In conjunction with precast concrete bearing carrier, be building
The product that industrialization technology continues to develop.It is longitudinally arranged the elongated coagulation of twice on the basis of traditional precast floor slab, along plate
Tu Liang, cross sectional shape are similar to pi symbol π, and span is generally in 9m between 24m.This unique section form, gives
The great cross sectional moment of inertia of T plate structure so that T plate can be competent at the requirement for long span in large span large spatial structure,
Economy is higher, and application prospect is very wide.
But the build of the T plate in traditional method and weight are very huge, are made to factory, transport and on-site hoisting carry
Higher requirement is gone out.Long T plate is often difficult to transport and lift, and increases the cost of T plate construction, improves technology
Difficulty so that the application advantage of T plate is not obvious.
Traditional T plate bottom presstressed reinforcing steel is pretensioned prestressing muscle, is generally of a straight line type arrangement, and lotus is evenly distributed with for vertical
It carries, prestressing force producing level is not high for shaped form presstressed reinforcing steel.
Utility model content
Deficiency of the utility model mainly for above-mentioned traditional T plate structure in actual use provides and a kind of facilitating life
The prefabricated T plate structure of post-tensioned prestressing segmented assembly of production, transport, installation.
The utility model is achieved through the following technical solutions：
A kind of prefabricated T plate cellular construction of post-tensioned prestressing segmented assembly, including horizontally disposed plate and perpendicular to plate
Beam, the beam cross-section at prefabricated T plate both ends are prefabricated with horizontal end plate, horizontal end plate with it is beam prefabricated into a single integrated structure, horizontal end plate is from upper
Multigroup straight hole road one is offered under and, every group includes at least two straight hole roads one, and two straight hole roads one are located at the both sides of beam；
Shear connector is offered on the horizontal end plate and plate end face of prefabricated T plate wherein one end；The Liang Chu at the prefabricated T plate both ends is offered
Reserved presstressed reinforcing steel duct for installing post-tensioned prestressing muscle；Presstressed reinforcing steel duct shape is according to whole T plate after assembly
Presstressed reinforcing steel duct shaped segments are arranged.
Preferably, shear connector is concave-convex type structure, and groove is trapezoidal with protrusion.
Preferably, high tensile reinforcement or high-strength bolt are used in the short presstressed reinforcing steel, be in line shape.
A kind of post-tensioned prestressing T plate structure is formed by multiple prefabricated T plate longitudinal divisions assembly, single prefabricated T plate
The beam cross-section at both ends is prefabricated with horizontal end plate, horizontal end plate with it is beam prefabricated into a single integrated structure, horizontal end plate offers more from top to bottom
Group straight hole road one, every group includes at least two straight hole roads one, and two straight hole roads one are located at the both sides of beam；Prefabricated T plate its
Shear connector is offered on the horizontal end plate and plate end face of middle one end；The Liang Chu at the prefabricated T plate both ends offers presstressed reinforcing steel hole
Road；After the completion of assembly, short presstressed reinforcing steel is installed in straight hole road one, in the presstressed reinforcing steel duct of whole T plate after setting
Tension prestress muscle.
Preferably, the line style of the post-tensioned prestressing muscle is in conic.
The beneficial effects of the utility model：
The prefabricated T plate structure of the utility model opens up the shear connector for splicing at both ends, by multiple prefabricated T plates existing
Field splicing, has given full play to the thought that prefabrication and assembly construction facade lighting breaks the whole up into parts, has reduced structure and producing, transport and lifting
Difficulty in journey improves service efficiency of the T plate in Practical Project；
The utility model creatively uses prestressing force crimp technology, in the diaphragm plate upper edge section of T plate both ends setting
Vertical separation arranges straight hole road, interts the simultaneously short presstressed reinforcing steel of stretch-draw anchor, finally interts the shaped form prestressing force of elongated arrangement again
Muscle and tensioning, adjacent two T plate segment is crimped together using prestressing force, and prestressed presence has ensured structure in stitching portion
Globality, shaped form post-tensioned prestressing bears to substantially increase the bearing capacity of T plate, effectively overcomes prefabricated subsection spelling
The problems such as piece being likely to occur cracks, structure stress is discontinuous is filled, prestressed producing level is increased, greatly improves and finish
The practicability of structure.
Description of the drawings
Fig. 1 is T plate structural schematic diagram in the prior art；
Fig. 2 is the utility model T plate structural schematic diagram；
Fig. 3 is the spliced vertical view figure structure schematic representation of the utility model T plate；
Fig. 4 is A-A sectional views in Fig. 3；
Fig. 5 is B-B sectional views in Fig. 3；
Fig. 6 is partial enlarged view at A in Fig. 3；
Fig. 7 is partial enlarged view at B in Fig. 5；
Fig. 8 is partial enlarged view at C in Fig. 5；
Fig. 9 is the spliced dimensional structure diagram of the utility model T plate, and which show the T plate other ends to set up
In the structure for the beam of falling T.
Figure 10 is the spliced dimensional structure diagram of the utility model T plate, and which show the T plate other ends also not
It is erected on the structure for the beam of falling T.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 2,4, the prefabricated T plate cellular construction of a kind of post-tensioned prestressing segmented assembly described in the utility model,
T plate structure in the prior art shown in opposite Fig. 1, processes to form shear connector in the splicing endface of the plate 1 ' of T plate one end
10, in the prefabricated horizontal end plate 7 in the splicing endface of beam 2 ', the splicing end face of beam 2 ' is made to widen, and processing formation is cut on the end face
Power key 10, the splicing endface of the plate 1 ' of the T plate other end do not process shear connector, i.e., the splicing end face of the plate 1 ' of the other end with it is existing
There is T plate end face structure in technology identical, but the splicing endface of the beam 2 ' of the T plate other end also prefabricated horizontal end plate 7, makes beam 2 '
Splicing end face widen, shear connector is not processed on the end face only, as shown in Figure 10, the T plate other end so design be for
What splice sections considered when being located on bearing.
Shear connector is concave-convex type structure, and groove is trapezoidal with protrusion, to improve section shear behavior, and it is double conducive to two sections
T plates are mutually twisted the end face, improve installation effectiveness.
As shown in Fig. 2, the projection portion of shear connector is machined at least two straight hole roads 1, position is distinguished in two straight hole roads 1
In the both sides of beam 2 ', presstressed reinforcing steel duct 9 is also machined on shear connector, presstressed reinforcing steel duct shape is according to whole double T after assembly
The presstressed reinforcing steel duct shaped segments of plate are arranged.Identical one He of straight hole road is equally offered on the horizontal end plate of the T plate other end
Presstressed reinforcing steel duct, as shown in Figure 7,8, straight hole road one is for installing short presstressed reinforcing steel 3, in order to ensure two sections of T plates at the end
The stability of the connection in face can process at least two in each projection portion of shear connector or each protrusion and groove part
Straight hole road 1, as shown in Fig. 5,7,8, presstressed reinforcing steel duct is for installing post-tensioned prestressing muscle 2, horizontal end plate, shear connector, straight hole
Road one and presstressed reinforcing steel duct are prefabricated together with the T plate.
The structure of single prefabricated T plate segment 1 as shown in Figure 1, the multiple prefabricated spliced structure in T plate segment such as Fig. 3,
5, shown in 9, multiple prefabricated T plate segment initial and ends are connected, and it is whole across T plate to form large span.
Fig. 6,8 show that prefabricated T plate segment opens up the splicing construction of shear connector end face, on two horizontal end plate Mosaic faces on
Epoxy resin to be smeared, the stability of the two connection is further increased, Fig. 3,5,9 are also shown when splice sections are located on bearing,
Using a beam of falling T, as shown in fig. 7, two splice sections is made to be held on respectively on the crossbeam of the beam of falling T vertical beam both sides, it is somebody's turn to do on the beam of falling T
Also it is prefabricated with matched straight hole road 2 11 corresponding with straight hole road one on horizontal end plate, is penetrated in straight hole road one and straight hole road two short pre-
Stress rib tightens anchorage nut 4 at short presstressed reinforcing steel both ends.It is also shown in Fig. 7 and fills slurry between the beam of falling T and horizontal end plate
Material makes the beam of falling T and horizontal end plate form integral structure after slurry hardening, further strengthens and is connected between the beam of falling T and T plate segment
Stability.
A kind of assembling method of the prefabricated T plate structure of post-tensioned prestressing segmented assembly described in the utility model, including：
Step 1, prefabricated T plate segment, prefabricated horizontal end plate at two end carriages, the wherein plate of one end, beam stitching portion processes
Shear connector, and straight hole road one and presstressed reinforcing steel duct are processed on shear connector；Prefabricated T plate segment is along the longitudinal direction vertical
In staying the presstressed reinforcing steel duct set for installing post-tensioned prestressing muscle on the beam of plate；
Step 2 lifts the prefabricated beam of falling T to one end of prefabricated T plate segment installation site, prefabricated T plate segment
The other end of installation site sets up supporting rack；
Step 3, by prefabricated T plate segment lifting to be assembled to installation site, one end is shelved sets up at the construction field (site)
On supporting rack, the other end is shelved on the crossbeam for the beam of falling T；It is machined on the horizontal end plate end face of shear connector and smears epoxy resin, it will
Both ends of the surface shear connector matching occlusion to be spliced, and short presstressed reinforcing steel is installed in corresponding straight hole road one, and in short presstressed reinforcing steel
Both ends twist set anchorage nut；
Step 4 is prefabricated with straight hole road two on the beam of falling T, slurry is perfused in the gap between the beam of falling T and horizontal end plate, waits starching
After material hardening, short presstressed reinforcing steel is installed in the straight hole road two of the straight hole road one of horizontal end plate and the beam of falling T, and in short presstressed reinforcing steel
It twists and sets anchorage nut in both ends；
Step 5 installs post-tensioned prestressing muscle in presstressed reinforcing steel duct, and carries out after tensioning in post-tensioned prestressing muscle
Both ends set anchorage and are anchored.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein（Including technology art
Language and scientific terminology）With meaning identical with the general understanding of the those of ordinary skill in the utility model fields.Also
It should be understood that those terms such as defined in the general dictionary should be understood that with in the context of the prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with the meaning of idealization or too formal.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to which its technology is determined according to right
Property range.
Claims (5)
1. a kind of prefabricated T plate cellular construction of post-tensioned prestressing segmented assembly, including horizontally disposed plate and the beam perpendicular to plate,
It is characterized in that：The beam cross-section at prefabricated T plate both ends is prefabricated with horizontal end plate, horizontal end plate and beam prefabricated into a single integrated structure, cross
End plate offers multigroup straight hole road one from top to bottom, and every group includes at least two straight hole roads one, and two straight hole roads one are located at
The both sides of beam；Shear connector is offered on the horizontal end plate and plate end face of prefabricated T plate wherein one end；The prefabricated T plate both ends
Liang Chu offers the presstressed reinforcing steel duct for installing post-tensioned prestressing muscle；Presstressed reinforcing steel duct shape is according to whole double after assembly
The presstressed reinforcing steel duct shaped segments of T plates are arranged.
2. the prefabricated T plate cellular construction of a kind of post-tensioned prestressing segmented assembly according to claim 1, it is characterised in that：
Shear connector is concave-convex type structure, and groove is trapezoidal with protrusion.
3. the prefabricated T plate cellular construction of a kind of post-tensioned prestressing segmented assembly according to claim 1, it is characterised in that：
The line style of the post-tensioned prestressing muscle is in conic.
4. a kind of post-tensioned prestressing T plate structure, it is characterised in that：It is formed by multiple prefabricated T plate longitudinal divisions assembly, individually
The beam cross-section at prefabricated T plate both ends is prefabricated with horizontal end plate, horizontal end plate with it is beam prefabricated into a single integrated structure, horizontal end plate is from top to bottom
Multigroup straight hole road one is offered, every group includes at least two straight hole roads one, and two straight hole roads one are located at the both sides of beam；It is prefabricated
Shear connector is offered on the horizontal end plate and plate end face of T plate wherein one end；The Liang Chu at the prefabricated T plate both ends offers pre- answer
Power muscle duct；After the completion of assembly, short presstressed reinforcing steel is installed in straight hole road one, is run through in the presstressed reinforcing steel duct of whole T plate
Post-tensioned prestressing muscle is set.
5. a kind of post-tensioned prestressing T plate structure according to claim 4, it is characterised in that：The post-tensioned prestressing muscle
Line style be in conic.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721791110.XU CN207846842U (en) | 2017-12-20 | 2017-12-20 | The prefabricated T plate cellular construction of post-tensioned prestressing segmented assembly and T plate structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721791110.XU CN207846842U (en) | 2017-12-20 | 2017-12-20 | The prefabricated T plate cellular construction of post-tensioned prestressing segmented assembly and T plate structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108060738A (en) * | 2017-12-20 | 2018-05-22 | 东南大学 | A kind of prefabricated T plate structure of post-tensioned prestressing segmented assembly and assembling method |
| CN112302231A (en) * | 2020-10-12 | 2021-02-02 | 上海市建筑科学研究院有限公司 | Prefabricated double-T-plate end connecting structure and construction method thereof |
| CN113175155A (en) * | 2021-04-27 | 2021-07-27 | 华中科技大学 | Ultra-high performance concrete T-shaped beam of FRP (fiber reinforced plastic) prestressed system and preparation method thereof |
-
2017
- 2017-12-20 CN CN201721791110.XU patent/CN207846842U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108060738A (en) * | 2017-12-20 | 2018-05-22 | 东南大学 | A kind of prefabricated T plate structure of post-tensioned prestressing segmented assembly and assembling method |
| CN108060738B (en) * | 2017-12-20 | 2023-09-12 | 东南大学 | Post-tensioned prestressing sectional assembly prefabricated double-T plate structure and assembly method |
| CN112302231A (en) * | 2020-10-12 | 2021-02-02 | 上海市建筑科学研究院有限公司 | Prefabricated double-T-plate end connecting structure and construction method thereof |
| CN113175155A (en) * | 2021-04-27 | 2021-07-27 | 华中科技大学 | Ultra-high performance concrete T-shaped beam of FRP (fiber reinforced plastic) prestressed system and preparation method thereof |
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