CN101949766B - Static sponge method wind load tester of exterior thermal insulation composite system - Google Patents
Static sponge method wind load tester of exterior thermal insulation composite system Download PDFInfo
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- CN101949766B CN101949766B CN 201010274386 CN201010274386A CN101949766B CN 101949766 B CN101949766 B CN 101949766B CN 201010274386 CN201010274386 CN 201010274386 CN 201010274386 A CN201010274386 A CN 201010274386A CN 101949766 B CN101949766 B CN 101949766B
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Abstract
The invention relates to a static sponge method wind load tester of an exterior thermal insulation composite system. The tester adopts a flexible stretching medium body combined by springs and foam silicone rubber sponge, thus the defect of the prior art that the strength of the adopted sponge material is insufficient can be overcome and the tester can test the wind loads of high-strength expanded polystyrene slab systems, high-strength extruded polystyrene slab systems, high-strength polyurethane systems and the like; the silicone rubber sponge material is different from the common polyurethane sponge material, the silicone rubber sponge material has higher strength; and tests prove that the tensile strength is up to more than 0.4MPa, thus the material can satisfy the strength requirement of the existing external thermal insulation system tensile test. Meanwhile, the test adopts the horizontal stretching mode and thin flexible medium material is required, or else the flexible medium material has the problem of falling, thus the combination mode of the springs and the silicone rubber sponge material is adopted, the thickness of the sponge material is reduced and the springs are used to ensure the flexibility. The tester of the invention adopts the horizontal stretching mode to replace the only vertical stretching mode, thus meeting the actual testing needs.
Description
Technical field
The present invention relates to external thermal insulation system wind load field tests, particularly a kind of static sponge method external thermal insulation system wind load tester.
Background technology
The factor that influences wind load is a lot, the difference of all kinds of surface conditions in different regions, and the variation of the condition of structure own, the difference of shape, surfaceness etc. all can cause the change of wind load on the structure in the same building thing zones of different.Under wind action, structure will produce certain motion, and this motion can cause the variation of body structure surface blast conversely again, adds influencing each other between the adjacent architectural, all make the quite complicacy of confirming to become of wind load on the structure.
According to documents and materials, the Wind-load Analysis method mainly contains following 4 kinds of methods:
1) frequency domain analysis: is the blast spectrum by wind speed spectrum or through the blast time-histories that wind tunnel test records through Fourier transform, obtains the dynamic response spectrum according to the transmission of power coefficient then, is obtained the dynamic response of structure through the response spectrum integration by random theory.
2) temporal analysis: the blast time-histories of directly using blast time-histories that wind tunnel test records or computer Simulation to obtain is carried out the wind vibration response time-history analysis to engineering structure; Obtain the dynamic response of structure then through Cable Power Computation, the statistical framework dynamic response can obtain Wind Vibration Coefficient.Adopt temporal analysis, can consider that the temporal correlation of natural wind and structural nonlinear influence, and the coupling wind of the reflect structure situation of shaking accurately.
3) wind-tunnel method: because wind has effects such as turbulent flow, vortex come off; Not only cause shearing and topple effect; Also structural entity is caused the dynamic wave dynamic load; Therefore in the design of labyrinth, using the wind tunnel test method is a kind of accuracy method of present wind load design, but also has certain instability.
4) numerical value wind-tunnel technology: numerical value wind-tunnel technology is to utilize Fluid Mechanics Computation (CFD) method to find the solution a kind of new technology of body structure surface wind load through the variation of wind field around the model configuration.This technology is a kind of Structural Wind Engineering research method that grows up the nearly more than ten years, and has formed an emerging Structural Wind Engineering branch gradually---calculate Wind Engineering (CWE).At present, " numerical value wind-tunnel " technology has become one of important directions of Structural Wind Engineering research.
The method of testing of analyzing the External Thermal Insulation System wind load at present mainly is static sponge method; Use the apparatus structure of this method test external thermal insulation system wind load following at present: this device comprises tautness meter, steel anchor clamps, scale board, foam block and displacement transducer; Foam block is through the test block of cementing agent bonding sample; The relative other end of foam block is through cementing agent adhesive glue plywood, and scale board is fixed on the steel anchor clamps, and the steel anchor clamps are connected with tautness meter.The pulling force that this device produces hydraulic means through tautness meter imposes on the steel anchor clamps with the speed of 10 ± 1mm/min; Be delivered in the sample test block through scale board, foam block then; Applied force when its main measuring test agent destroys, this power is maximum wind load value.In the test process, steel anchor clamps and scale board are fixed, and scale board and foam block bond with bi-component epoxide-resin.
This device is simulated actual wind-force flexibility and is acted on the influence that system surfaces causes through adopting flexible material bonding pulling force equipment and heat-insulation system.But this device also exists weak point, and at first the sponge material of this device use is softer, is only applicable in the vertical direction and carries out the wind load test; The sponge material undercapacity (about 0.1MPa) that next this device adopts; Be mainly used in the detection of the lower rock wool outer heat preservation system of intensity, and the undercapacity of common sponge material is to implement the wind load test to the higher expansion polyphenyl plate system of intensity, extruded polystyrene board system, polyurethane system.
Summary of the invention
The technical matters that the present invention will solve has provided a kind of static sponge method external thermal insulation system wind load tester.This tester has not only overcome in the prior art can not horizontal stretch carry out the drawback of wind load test, and can test the wind load of the higher expansion polyphenyl plate system of intensity, extruded polystyrene board system, polyurethane system etc.
For solving the problems of the technologies described above, described static sponge method external thermal insulation system wind load tester mainly provides the actuating unit of pulling force to form by mechanism for testing with to this mechanism for testing; It is characterized in that: said mechanism for testing mainly is made up of pulling force framework and the pulling force panel that is arranged on pulling force framework front end; The pulling force panel comprises silica-gel sponge plate, movable installing plate, arm-tie and square plate successively according to order from outside to inside; The silica-gel sponge plate passes through adhesive bonds on movable installing plate; The another side of the relative silicon bonded gelatin sponge of movable installing plate plate is provided with the swallow-tail form projection; Be provided with the dovetail groove that is complementary with the swallow-tail form projection on the arm-tie surface accordingly; Movable installing plate is fixed on the arm-tie through the swallow-tail form projection, and arm-tie is connected with square plate through equally distributed spring with respect to the another side of fixing movable installing plate; On said pulling force framework, be provided with at least one horizontal guide pillar, this horizontal guide pillar runs through said square plate and is connected with said arm-tie; Said actuating unit is connected with said square plate, and test medium power mechanism drags the pulling force panel and slides along horizontal guide pillar through dragging said square plate.
Wherein, said pulling force panel is of a size of 600mm*600mm, and said square plate is the steel plate of a 600mm*600mm, and said silica-gel sponge plate, movable installing plate and arm-tie are the square body piece plate of 200mm*200mm; The silica-gel sponge plate passes through adhesive bonds on movable installing plate; Movable installing plate is fixed on the arm-tie through the swallow-tail form projection; The silica-gel sponge plate that is fixed together, movable installing plate and arm-tie are formed an arm-tie group, and the arm-tie group of 9 groups of 200mm*200mm is arranged on the pulling force panel of 600mm*600mm; Every group of arm-tie group is connected with said square plate through equally distributed 21 springs respectively, and every group of arm-tie group is connected with said pulling force framework through the horizontal guide pillar that at least one runs through said square plate respectively.
Wherein, said arm-tie group is provided with a cylindrical bump, is provided with the guide hole that is complementary with horizontal guide pillar in the projection; Said arm-tie group is connected with said pulling force framework through two horizontal guide pillars that run through said square plate; Horizontal guide pillar one end is fixed on the arm-tie group, and the other end runs through the pulling force framework and stretches out from pulling force framework another side, and another horizontal guide pillar one end is fixed on the pulling force framework, and the other end puts in the said guide hole.
Wherein, in 9 groups of arm-tie groups, respectively be provided with a displacement transducer on all the other peripheral 8 groups except that a group of center.
Wherein, also be provided with the frame of carrying the pulling force framework in the outer end of said pulling force framework, the bottom of frame is provided with wheel, on frame, is provided with the running gear of wheels walking, and running gear connects reductor by direct current generator and forms.
Wherein, be provided with the jacking gear that the said pulling force framework of driving goes up and down along frame at the top of said frame.
Wherein, said actuating unit is a turbine and worm puller system, between its screw mandrel and said square plate, is provided with a pulling force sensor.
Wherein, in said pulling force framework, also be provided with an angle demodulator that is used to regulate said pulling force panel angle.
Wherein, be provided with four feets in the bottom of said frame.
Compared with prior art, the present invention has following advantage:
1, this tester adopts horizontal stretch to substitute the vertical stretching that only can implement at present; More meet the actual detected needs,, adopt horizontal stretch directly to carry out the wind load test the model after the atmospheric exposure test because outer heat preservation system need carry out atmospheric exposure test.
2, this tester adopts the flexibility stretching mediator that spring and foamed silastic sponge combine; Overcome the weakness of the sponge material undercapacity of available technology adopting, can test the wind load of the higher expansion polyphenyl plate system of intensity, extruded polystyrene board system, polyurethane system etc.; The silicone sponge material is different from common polyurethane sponge material, and it has higher intensity, can reach more than the 0.4MPa through its pulling strengrth of testing and verification, can satisfy the requirement of strength of existing outer heat preservation system tension test.Simultaneously owing to adopt the test method of horizontal stretch, in the flexibility dielectric material unsuitable after, otherwise have the problem of tenesmus, so adopt spring and the mode that the silicone sponge material combines, shortened the thickness of sponge material, the increase spring guarantees flexibility.
3, this tester adopts in the multidigit displacement sensor monitoring entire test and systematically destroys situation, tests more accurate; For reflecting the process of system destruction more clearly, on the pulling force panel, evenly be furnished with a plurality of displacement transducers, can systematically destroy situation in the monitoring test process.
4. this tester carries drive system mobile test appearance easily.
5. this tester pulling force equipment adopts screw drive, and tension variations is more uniform and stable, and ultimate elongation speed is lower.
Description of drawings
Fig. 1 is the structural representation of facing of the static sponge method external thermal insulation system of the present invention wind load tester.
Fig. 2 is the enlarged drawing of facing pulling force panel in the structural representation of the static sponge method external thermal insulation system of the present invention wind load tester.
Fig. 3 is the left TV structure synoptic diagram of the static sponge method external thermal insulation system of the present invention wind load tester.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further:
Like Fig. 1, Fig. 2 and static sponge method external thermal insulation system wind load tester shown in Figure 3, mainly provide the actuating unit 11 of pulling force to form by mechanism for testing with to this mechanism for testing; Said mechanism for testing mainly is made up of pulling force framework 9 and the pulling force panel 8 that is arranged on pulling force framework 9 front ends; Pulling force panel 8 comprises silica-gel sponge plate 1, movable installing plate 3, arm-tie 4 and square plate 6 successively according to order from outside to inside; Silica-gel sponge plate 1 is bonded on the movable installing plate 3 through tackifier 2; The another side of movable installing plate 3 relative silicon bonded gelatin sponge plates 1 is provided with the swallow-tail form projection; Arm-tie is provided with the dovetail groove that is complementary with the swallow-tail form projection on 4 surfaces accordingly; Movable installing plate 3 is fixed on the arm-tie 4 through the swallow-tail form projection, and arm-tie 4 is connected with square plate 6 through equally distributed spring 5 with respect to the another side of fixing movable installing plate 3; On said pulling force framework 9, be provided with at least one horizontal guide pillar 7, this horizontal guide pillar 7 runs through said square plate 6 and is connected with said arm-tie 4; Said actuating unit 11 is connected with said square plate 6, and test medium power mechanism 11 drags pulling force panel 8 along horizontal guide pillar 7 slips through dragging said square plate 6.
Wherein, said pulling force panel 8 is of a size of 600mm*600mm, and said square plate 6 is the steel plate of a 600mm*600mm, and said silica-gel sponge plate 1, movable installing plate 3 and arm-tie 4 are the square body piece plate of 200mm*200mm; Silica-gel sponge plate 1 is bonded on the movable installing plate 3 through tackifier 2; Movable installing plate 3 is fixed on the arm-tie 4 through the swallow-tail form projection; The silica-gel sponge plate 1 that is fixed together, movable installing plate 3 and arm-tie 4 are formed 4 groups of arm-ties, and 4 groups of the arm-ties of 9 groups of 200mm*200mm are arranged on the pulling force panel 8 of 600mm*600mm; Every group of arm-tie is connected with said square plate 6 through equally distributed 21 springs 5 respectively for 4 groups, and every group of arm-tie is connected with said pulling force framework 9 through at least one horizontal guide pillar 7 that runs through said square plate 6 respectively for 4 groups.
The static sponge method external thermal insulation system of the present invention wind load tester is taked following working method: the appearance wall is pushed into is close to tension tester earlier, and through silicon rubber bonding appearance wall and tester; Regulate the tester parameter, the appearance wall is carried out the method wind load experiment of static sea; After experiment finished, record data were also analyzed the system under test (SUT) stressing conditions.
The static sponge method external thermal insulation system of the present invention wind load tester comprises with the lower part:
Running gear 16: through the walking of reductor transmission front-wheel, select through the conversion of electronic box side switch by the front and back advance and retreat by direct current generator for running gear 16, and starting switch is fixed on the handle, turns to through realizing the hand operation tail wheel.
Jacking gear 13: jacking gear 13 is gone up and down by appliance panel rising, decline button crawl control motor-driven frame, realizes the height control 870～1450mm of test center.
Actuating unit 11: actuating unit 11 is installed in the pulling force framework 9, by 20t worm and gear lifter pulling force is provided, and 6 of screw mandrel and square plates are equipped with 20t pulling force sensor 10.
The operation steps of the static sponge method external thermal insulation system of the present invention wind load tester:
1. earlier silica-gel sponge plate 1 is cut into the 196x196 size, (wears displacement transducer usefulness) by two kinds of sizes respectively towards φ 20 holes with perforating die then, two kinds of positions respectively process 4.
2. after being screwed into movable installing plate 3 side screws with a dribbling screw rod, pull down movable installing plate 3, behind clean movable installing plate 3 of gasoline and silica-gel sponge plate 1 faying face, be coated with the silica gel cementing agent, coating should not be too thick, and both are bonding; Be proof strength, suitable cure under pressure notices guaranteeing that position, displacement transducer hole is consistent.
3. after confirm solidifying, number movable installing plate 3 is put into arm-ties 4 by steel seal.
4. after gasoline cleaned silica-gel sponge plate 1 and tested warming plate surface, coating adhesive was respectively handled about tester directly, and highly consistent (wouldn't lean on) unclamped angle demodulator handwheel 12 about, made itself and gag lever post disengaging.
5. behind inspection pulling force panel 8 and the test wall correct position, start running gear, the top board of pulling force framework 9 top and the bottom and metope are fitted; Front driving wheel began the original place and skidded this moment, decontroled the starting switch on the handgrip, then with front and back; About four feets 15 screw off, make itself and ground secure support.
6. connect the Reset button on the device power supply (DPS) crawl electronic box operation panel, make the counter-rotating of puller system screw mandrel, tension board protracts, and sea on the installing plate and test specimen surface fit tightly, and behind the affirmation correct position, early-stage preparations are accomplished.
7. begin to test wind load.
More than show and described ultimate principle of the present invention and principal character and advantage thereof.The technological personage of the industry should understand; The present invention does not receive the restriction of above-mentioned implementing regulations; That describes in above-mentioned implementing regulations and the instructions just is used to explain principle of the present invention; Under the prerequisite that does not break away from the principle of the invention and scope, the present invention also can have various changes and modifications, and these variations and improvement all belong in the scope of the invention of requirement protection.
The present invention requires protection domain to define with appending claims and other equivalent.
Claims (9)
1. a static sponge method external thermal insulation system wind load tester mainly provides the actuating unit (11) of pulling force to form by mechanism for testing with to this mechanism for testing; It is characterized in that: said mechanism for testing mainly is made up of pulling force framework (9) and the pulling force panel (8) that is arranged on pulling force framework (9) front end; Pulling force panel (8) comprises silica-gel sponge plate (1), movable installing plate (3), arm-tie (4) and square plate (6) successively according to order from outside to inside; Silica-gel sponge plate (1) is bonded on the movable installing plate (3) through tackifier (2); Movable installing plate (3) another side of silicon bonded gelatin sponge plate (1) relatively is provided with the swallow-tail form projection; Arm-tie (4) is provided with the dovetail groove that is complementary with the swallow-tail form projection on the surface accordingly; Movable installing plate (3) is fixed on the arm-tie (4) through the swallow-tail form projection, and arm-tie (4) is connected with square plate (6) through equally distributed spring (5) with respect to the another side of fixing movable installing plate (3); On said pulling force framework (9), be provided with at least one horizontal guide pillar (7), this horizontal guide pillar (7) runs through said square plate (6) and is connected with said arm-tie (4); Said actuating unit (11) is connected with said square plate (6), and test medium power mechanism (11) drags pulling force panel (8) and slides along horizontal guide pillar (7) through dragging said square plate (6).
2. static sponge method external thermal insulation system wind load tester according to claim 1; It is characterized in that: said pulling force panel (8) is of a size of 600mm*600mm; Said square plate (6) is the steel plate of a 600mm*600mm, and said silica-gel sponge plate (1), movable installing plate (3) and arm-tie (4) are the square body piece plate of 200mm*200mm; Silica-gel sponge plate (1) is bonded on the movable installing plate (3) through tackifier (2); Movable installing plate (3) is fixed on the arm-tie (4) through the swallow-tail form projection; The silica-gel sponge plate (1) that is fixed together, movable installing plate (3) and arm-tie (4) are formed an arm-tie (4) group, and the arm-tie of 9 groups of 200mm*200mm (4) group is arranged on the pulling force panel (8) of 600mm*600mm; Every group of arm-tie (4) group is connected with said square plate (6) through equally distributed 21 springs (5) respectively, and every group of arm-tie (4) group is connected with said pulling force framework (9) through at least one horizontal guide pillar (7) that runs through said square plate (6) respectively.
3. static sponge method external thermal insulation system wind load tester according to claim 2 is characterized in that: said arm-tie (4) group is provided with a cylindrical bump, is provided with the guide hole that is complementary with horizontal guide pillar (7) in the cylindrical bump; Said arm-tie (4) group is connected with said pulling force framework (9) through two horizontal guide pillars (7) that run through said square plate (6); Horizontal guide pillar (7) one ends are fixed on arm-tie (4) group, and the other end runs through pulling force framework (9) and stretches out from pulling force framework (9) another side, and another horizontal guide pillar (7) one ends are fixed on the pulling force framework (9), and the other end puts in the said guide hole.
4. static sponge method external thermal insulation system wind load tester according to claim 2 is characterized in that: respectively be provided with a displacement transducer on all the other peripheral 8 groups in 9 groups of arm-ties (4) groups except that a group of center.
5. static sponge method external thermal insulation system wind load tester according to claim 1 and 2; It is characterized in that: also be provided with the frame (14) of carrying pulling force framework (9) in the outer end of said pulling force framework (9); The bottom of frame (14) is provided with wheel (17); On frame (14), be provided with the running gear (16) of wheels (17) walking, running gear (16) connects reductor by direct current generator and forms.
6. static sponge method external thermal insulation system wind load tester according to claim 5 is characterized in that: be provided with at the top of said frame (14) and drive the jacking gear (13) that said pulling force framework (9) goes up and down along frame (14).
7. static sponge method external thermal insulation system wind load tester according to claim 1 and 2; It is characterized in that: said actuating unit (11) is a turbine and worm puller system, between its screw mandrel and said square plate (6), is provided with a pulling force sensor (10).
8. static sponge method external thermal insulation system wind load tester according to claim 6 is characterized in that: in said pulling force framework (9), also be provided with an angle demodulator (12) that is used to regulate said pulling force panel (8) angle.
9. static sponge method external thermal insulation system wind load tester according to claim 5 is characterized in that: be provided with four feets (15) in the bottom of said frame (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010274386 CN101949766B (en) | 2010-09-07 | 2010-09-07 | Static sponge method wind load tester of exterior thermal insulation composite system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010274386 CN101949766B (en) | 2010-09-07 | 2010-09-07 | Static sponge method wind load tester of exterior thermal insulation composite system |
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| CN101949766A CN101949766A (en) | 2011-01-19 |
| CN101949766B true CN101949766B (en) | 2012-07-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476636A (en) * | 1989-06-15 | 1995-12-19 | Building Research Institute, Ministry Of Construction | Apparatus for performing weather resistance test |
| CN101126728A (en) * | 2007-09-11 | 2008-02-20 | 安徽省产品质量监督检验研究院 | Building heat preservation weather-resistant tester |
| CN201034888Y (en) * | 2007-04-27 | 2008-03-12 | 沈阳合兴检测设备有限公司 | Building exterior wall external heat preserving system anti wind pressure testing apparatus |
| CN201555793U (en) * | 2009-06-16 | 2010-08-18 | 上海市建筑科学研究院(集团)有限公司 | Building exterior self-insulation system safety testing device |
| CN201780199U (en) * | 2010-09-07 | 2011-03-30 | 上海市建筑科学研究院(集团)有限公司 | Static-state sponge method wind load test instrument of external wall external heat insulation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3806708B2 (en) * | 2003-08-29 | 2006-08-09 | 積水ハウス株式会社 | Compound deterioration accelerator |
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2010
- 2010-09-07 CN CN 201010274386 patent/CN101949766B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476636A (en) * | 1989-06-15 | 1995-12-19 | Building Research Institute, Ministry Of Construction | Apparatus for performing weather resistance test |
| CN201034888Y (en) * | 2007-04-27 | 2008-03-12 | 沈阳合兴检测设备有限公司 | Building exterior wall external heat preserving system anti wind pressure testing apparatus |
| CN101126728A (en) * | 2007-09-11 | 2008-02-20 | 安徽省产品质量监督检验研究院 | Building heat preservation weather-resistant tester |
| CN201555793U (en) * | 2009-06-16 | 2010-08-18 | 上海市建筑科学研究院(集团)有限公司 | Building exterior self-insulation system safety testing device |
| CN201780199U (en) * | 2010-09-07 | 2011-03-30 | 上海市建筑科学研究院(集团)有限公司 | Static-state sponge method wind load test instrument of external wall external heat insulation system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-77220A 2005.03.24 |
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| CN101949766A (en) | 2011-01-19 |
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