CN202391014U - Special prestressed precast beam with T-shaped cross section for double-T roof panel - Google Patents
Special prestressed precast beam with T-shaped cross section for double-T roof panel Download PDFInfo
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- CN202391014U CN202391014U CN2011205619804U CN201120561980U CN202391014U CN 202391014 U CN202391014 U CN 202391014U CN 2011205619804 U CN2011205619804 U CN 2011205619804U CN 201120561980 U CN201120561980 U CN 201120561980U CN 202391014 U CN202391014 U CN 202391014U
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- roof panel
- precast beam
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- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 210000001015 abdomen Anatomy 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004566 building material Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to building materials, in particular relates to a special precast beam with a T-shaped cross section for large-span double-T panel buildings. The precast beam has a T-shaped cross section; a flange is internally provided with a prestressed member placed by using a tension method; a web bottom connector is pre-embedded on the bottom of a web plate on the end part of the beam; multiple beam top connectors are pre-embedded on the top of the flange; and a flange connector is pre-embedded on at least one side of the flange on the end part of the beam. In comparison with the cast-in-place beam, the precast beam in the utility model has good production condition, ensures the quality more easily, reduces the pollution in the construction site and shortens the construction period. As the beam has a T-shaped cross section and the prestressed member is pre-embedded in the flange by using a tension method, materials are saved, favorable structural strength is ensured, the construction cost is lowered and obvious economic benefit and social benefit are achieved.
Description
Technical field
The utility model belongs to constructional materials, relates in particular to the special-purpose prefabricated T type of a kind of large span double T plate building and cuts section bar.
Background technology
The double T plate is a kind of steel concrete bearing carrier, is made up of roomy panel and two narrow and high ribs, and its panel is horizontal load-carrying members, is again the pressure zone of vertical load-bearing rib.The pressure zone cross section is bigger, and natural axis is approaching or get into panel, is drawn main reinforcement that the bigger arm of force is arranged.So the double T plate has good structural mechanical property, clear and definite power transmission level, succinct geometry is a kind of large span, big area coverage and both economical bearing carrier of can be made into.In individual layer, multilayer and highrise building, the double T plate can directly be shelved on framework, beam or the load bearing wall, as floor or roof structure.In single storey industry workshop, the double T plate is used as roof panel, can laterally be held on joist or the load bearing wall, also can vertically be held on the roof truss beam, has good technology economic.
But be used to support the concrete beam that bears horizontal force of double T roof panel; Often all be cast-in-place, because the roofing load that the common span of industrial premises is big, horizontal beam bore is big, therefore the interface dimensions and the arrangement of reinforcement of cast-in-place beam are all very big; This just causes the wet trade of this construction many especially; Duration is long especially, waste of material is serious, working procedure very complicated, difficult quality control and workload is big, management difficulty is high, and have with serious pollution defective.
Summary of the invention
The purpose of the utility model is to provide a kind of first tensammetry prestressing force T type prefabricated, that be exclusively used in the double T roof panel to cut section bar.
For addressing the above problem, the cross section of the special-purpose Prestressed T type of the double T roof panel of the utility model cross section precast beam is a T-shape, is provided with the prestressed member that first tensammetry is inserted in the edge of a wing, is positioned at connector at the bottom of the pre-buried abdomen in web bottom surface of end position of beam.
The pre-buried some back connectors of the end face on the said edge of a wing.
Be positioned at the pre-buried flank connector at least one side on the edge of a wing of the end position of beam.
Bottom surface, the edge of a wing is parallel with end face, and rectangular with junction, web side.
Bottom surface, the edge of a wing is parallel with end face, and is the straight flange chamfering with junction, web side.
Said straight flange chamfering is 45 °.
Bottom surface, the edge of a wing is parallel with end face, and is shaped as circular arc chamfering with junction, web side.
Bottom surface, the edge of a wing becomes the obtuse angle to be connected with end face at an angle and with the web side.
Said obtuse angle is 120 °.
Said prestressed member is reinforcing bar or steel strand.
Compared with prior art, the utility model is a kind of prefabricated beam, compares with cast-in-place beam, and working condition is good, and quality guarantees more easily, and reduced the job site pollution, shortened the duration; Because the interface of beam is a T-shape, and in the edge of a wing, adopt the long line of first tensammetry pre-buried prestressed member, therefore in the saving material, have good structural strength, integral body has reduced construction cost, has tangible techno-economic effect and social benefit; Since the edge of a wing and web surface pre-buried connector, therefore can be good at being connected with double T roof panel and pillar, the load classification is particularly suitable for the double T roof panel with constructing to be connected; Owing to the edge of a wing and the web syndeton of various ways are provided, can have selected flexibly according to actual condition and mechanical structure.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is the utility model embodiment 2 structural representations;
Fig. 3 is the utility model embodiment 3 structural representations;
Fig. 4 is the utility model embodiment 4 structural representations.、
Reference numeral: the 1. edge of a wing; 2. web; 3. reinforcing bar; 4. back connector; 5. connector at the bottom of the abdomen; 6. flank connector.
The specific embodiment
The utility model is that the prefabricated T type of a kind of prestressing force cuts section bar, and is specially adapted for the building bearing member of the factory building of large span double T room panel structure, i.e. the load classification of form of structure and load-bearing is adapted to the double T roof panel very much.
Embodiment 1: Fig. 1 has shown the cross section of T-shape beam, and it comprises the edge of a wing 1 of incorporate horizontal direction and the web 2 of vertical direction, is embedded with the reinforcing bar 3 as the pretensioned prestressing member in the edge of a wing 1; The pre-buried some back connectors 4 of the end face on the edge of a wing 1, the pre-buried flank connector 6 in the side on the edge of a wing 1, connector 5 at the bottom of the pre-buried abdomen in the bottom surface of web 2; The bottom surface on the edge of a wing 1 is parallel with its end face, and rectangular with junction, web 2 side.Reinforcing bar 3 also can use steel strand to replace.
Owing to be embedded with prestressed reinforcement or steel strand, therefore have enough strength and stiffness in the edge of a wing 1, the beam that is equivalent to keep flat can effectively bear double T roof panel load and transmit horizontal force; The pre-buried flank connector 6 in the side on the edge of a wing 1 mainly is to be used for carrying out the side with pillar to be welded to connect; Connector 5 at the bottom of the pre-buried abdomen in the bottom surface of web 2 mainly is to be used for carrying out being welded to connect of horizontal contact surface with pillar; The pre-buried some back connectors 4 of the end face on the edge of a wing 1; Wherein the back connector 4 near beam end can be used for two beam-ends head joints; Ride over through the another one connector on the back connector of each beam and weld, the back connector 4 that keeps clear of beam end can be used for roof panel on the contact surface corresponding connector be welded to connect.
Embodiment 2: structure is as shown in Figure 2, compares with embodiment 1, and the junction, side of the bottom surface on the edge of a wing 1 and web 2 is 45 ° of straight flange chamferings, and two sides on the edge of a wing 1 all are embedded with flank connector 5.The transition between the edge of a wing 1 and the web 2 that is arranged so that of chamfering has a buffering, alleviates the stress concentration degree of junction when stressed, therefore makes the T-shape beam have better structural strength.
Embodiment 3: structure is as shown in Figure 3, compares with embodiment 2, and the junction, side of the bottom surface on the edge of a wing 1 and web 2 is circular arc chamfering, acts on identical with the straight line chamfering of embodiment 2.
Embodiment 4: structure is as shown in Figure 4, compare with embodiment 1, the bottom surface on the edge of a wing 1 and its end face at an angle and be 120 ° of obtuse angles with the side of web 2 and be connected, two sides on the edge of a wing 1 all are embedded with flank connector 5.This form of structure, the latter half width on the edge of a wing 1 narrows to the width of web 2 bodies gradually, transition between the two be more gradually, mild, the degree that stress is concentrated is very low, has better structural strength and mechanical property.
In the utility model, actually or two the side built-in connections in side, the edge of a wing, depend on actual needs (promptly with other member, like the installation needs of beam or roof panel, the shape of jaw post); The shape of bottom surface, the edge of a wing and junction, web side also can adopt the combination of several kinds of shapes in the foregoing description, perhaps adopts other variant; These are all within the protection domain of the utility model.Therefore; Above embodiment is only in order to the technical scheme of explanation the utility model but not to the restriction of protection domain; Although the utility model is specified with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that the distortion that the spirit that do not break away from the utility model and principle are carried out the utility model or is equal to replacement, still within the protection domain of the utility model.
The beneficial effect of the utility model is; Realized applying prestressed prefabricated as T type beam one of main body supporting member of factory building, that match with the double T roof panel, replaced cast-in-place beam, alleviated the pollution of job site; Simplified on-site construction processes; Reduced the construction working amount, integral body has reduced construction cost, has tangible techno-economic effect and social benefit; And since prefabricated be to carry out at production department, than cast-in-site technology, better working condition and technology controlling and process are arranged, can better guarantee the quality of beam; And, because reasonable T-shape form of structure is arranged, both saved raw material, aspect various mechanical properties, all exceeded cast-in-place beam again; Pre-buried connector can make the T-shape beam pour into a mould with post or the welding of double T roof panel earlier again, has strengthened the whole structural strength in house, has formed new house structural system, is specially adapted to the factory building of the big double T room panel structure of span.Form is connected can to form " the tenon fourth of the twelve Earthly Branches " of self-tightening type with the jaw post; Cooperate with the double T roof panel again and can form good whole factory building architectural structure system; Help to realize full assembling, seriation modular workshop building, meet the trend of building trade technical development.
Claims (10)
1. the special-purpose Prestressed T type of double T roof panel cross section precast beam is characterized in that the cross section is a T-shape, is provided with the prestressed member that first tensammetry is inserted in the edge of a wing, is positioned at connector at the bottom of the pre-buried abdomen in web bottom surface of end position of beam.
2. the special-purpose Prestressed T type of double T roof panel according to claim 1 cross section precast beam is characterized in that the pre-buried some back connectors of end face on the said edge of a wing.
3. the special-purpose Prestressed T type of double T roof panel according to claim 1 and 2 cross section precast beam is characterized in that being positioned at the pre-buried flank connector at least one side on the edge of a wing of the end position of beam.
4. the special-purpose Prestressed T type of double T roof panel according to claim 1 cross section precast beam is characterized in that bottom surface, the edge of a wing is parallel with end face, and rectangular with junction, web side.
5. the special-purpose Prestressed T type of double T roof panel according to claim 1 cross section precast beam is characterized in that bottom surface, the edge of a wing is parallel with end face, and is the straight flange chamfering with junction, web side.
6. the special-purpose Prestressed T type of double T roof panel according to claim 5 cross section precast beam is characterized in that said straight flange chamfering is 45 °.
7. the special-purpose Prestressed T type of double T roof panel according to claim 1 cross section precast beam is characterized in that bottom surface, the edge of a wing is parallel with end face, and is shaped as circular arc chamfering with junction, web side.
8. the special-purpose Prestressed T type of double T roof panel according to claim 1 cross section precast beam is characterized in that bottom surface, the edge of a wing becomes the obtuse angle to be connected with end face at an angle and with the web side.
9. the special-purpose Prestressed T type of double T roof panel according to claim 8 cross section precast beam is characterized in that said obtuse angle is 120 °.
10. the special-purpose Prestressed T type of double T roof panel according to claim 1 cross section precast beam is characterized in that said prestressed member is reinforcing bar or steel strand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205619804U CN202391014U (en) | 2011-12-29 | 2011-12-29 | Special prestressed precast beam with T-shaped cross section for double-T roof panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205619804U CN202391014U (en) | 2011-12-29 | 2011-12-29 | Special prestressed precast beam with T-shaped cross section for double-T roof panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391014U true CN202391014U (en) | 2012-08-22 |
Family
ID=46665948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205619804U Expired - Lifetime CN202391014U (en) | 2011-12-29 | 2011-12-29 | Special prestressed precast beam with T-shaped cross section for double-T roof panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391014U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899103A (en) * | 2012-12-29 | 2014-07-02 | 青岛市城阳区新世纪预制构件有限公司 | Industrial plant |
| CN104294997A (en) * | 2014-09-02 | 2015-01-21 | 柳忠林 | Large-span prestress double-T plate with embedded parts connected with horizontal force transmitting steel bars at two ends |
| CN108797889A (en) * | 2018-08-30 | 2018-11-13 | 河北建筑工程学院 | A kind of steel and wood composite girder construction and its construction method |
| CN111879193A (en) * | 2020-08-11 | 2020-11-03 | 武汉扬吉科技有限公司 | Layered expansion jacking device and construction method thereof |
-
2011
- 2011-12-29 CN CN2011205619804U patent/CN202391014U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899103A (en) * | 2012-12-29 | 2014-07-02 | 青岛市城阳区新世纪预制构件有限公司 | Industrial plant |
| CN103899103B (en) * | 2012-12-29 | 2016-06-15 | 青岛新世纪预制构件有限公司 | Industrial premises |
| CN104294997A (en) * | 2014-09-02 | 2015-01-21 | 柳忠林 | Large-span prestress double-T plate with embedded parts connected with horizontal force transmitting steel bars at two ends |
| CN108797889A (en) * | 2018-08-30 | 2018-11-13 | 河北建筑工程学院 | A kind of steel and wood composite girder construction and its construction method |
| CN108797889B (en) * | 2018-08-30 | 2023-11-24 | 新疆彦鑫建筑安装工程有限责任公司 | Steel-wood composite beam structure and construction method thereof |
| CN111879193A (en) * | 2020-08-11 | 2020-11-03 | 武汉扬吉科技有限公司 | Layered expansion jacking device and construction method thereof |
| CN111879193B (en) * | 2020-08-11 | 2022-09-13 | 武汉扬吉科技有限公司 | Layered expansion jacking device and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 266000 Shandong city of Qingdao province Chengyang Jihongtan Street Han Wacun Patentee after: QINGDAO NEW CENTURY PREFABRICATED COMPONENTS CO., LTD. Address before: 266111, 1 Qingdao Road, 204 National Road, Chengyang District, Shandong, China Patentee before: Qingdao New Century Prefabricated Components Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |