CN203069343U - Exterior wall outer insulation system seismic test member - Google Patents
Exterior wall outer insulation system seismic test member Download PDFInfo
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- CN203069343U CN203069343U CN 201220730004 CN201220730004U CN203069343U CN 203069343 U CN203069343 U CN 203069343U CN 201220730004 CN201220730004 CN 201220730004 CN 201220730004 U CN201220730004 U CN 201220730004U CN 203069343 U CN203069343 U CN 203069343U
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Abstract
The utility model relates to an exterior wall outer insulation system seismic test member, which is characterized by comprising a seismic test member body. The seismic test member body is composed of a loading beam, a central base vertical wall and a ground beam and has an H-shaped longitudinal cross section. The exterior wall outer insulation system seismic test member fills in a gap in the exterior wall outer insulation system seismic safety test members. By performing low cyclic load tests on the test member provided by the utility model, an operator can effectively judge the seismic safety performances of an exterior wall outer insulation system. The specific size and the reinforcing rib amounts of the exterior wall outer insulation seismic test member are specified. Related seismic tests can be relatively rapidly finished. Repeated designs and checking computation on the test member are not required. The exterior wall outer insulation system seismic test member can be used for seismic safety tests of any exterior wall outer insulation system and especially suitable for seismic tests of inorganic insulation materials.
Description
Technical field
The utility model belongs to the building materials test component, relates in particular to a kind of external thermal insulation system quake-resistant safety test component.
Background technology
China's External Thermal Insulation System has obtained very fast development, and new external thermal insulation system emerges in an endless stream.But, how to utilize the different external thermal insulation system of research technique test when building structure suffers in various degree geological process destruction and dropping situations and verify that its quake-resistant safety is one of factor of restriction external wall outer insulation development always.China's industry standard " external wall outer insulation engineering rules " (JGJ144), regulation external wall outer insulation engineering should not come off from middle basic unit wall when rarely occurred earthquake takes place." glue powder polyphenyl granule exterior wall outer heat preservation system " appendix G (JG158) has proposed external thermal insulation system knock test method.But test method has following shortcoming: test method is applicable to the glue powder polyphenyl granule exterior wall outer heat preservation system, whether is applicable to that other external thermal insulation system is indeterminate; Less (the 1.0m * 1.0m) of basic unit's wall area in the middle of the test sample, basic unit's wall did not destroy in process of the test in the middle of middle basic unit wall rigidity required than big and test method, so the distortion of basic unit's wall is less in the middle of in the process of the test, can not simulate practical distortion and the stressing conditions of external thermal insulation system under geological process; Basic unit's wall be " one " font in the middle of the test sample, can not simulate the situation of external wall outer insulation under geological process that reaches in middle basic unit wall corner perpendicular to load direction metope place; After the off-test, in the middle of the test sample on basic unit's wall tested heat-insulation system do not have and come off that to be anti-seismic performance qualified, test can't be observed external thermal insulation system inside particularly distortion and the stressing conditions of warming plate and accessory (as crab-bolt, handware), so be difficult to by test the optimization of external thermal insulation system be proposed reasonable proposal.
The utility model content
The utility model is in order to overcome deficiency of the prior art, a kind of external thermal insulation system shock test member to be provided, can be used for the quake-resistant safety test of any external thermal insulation system, especially being fit to the shock test of inorganic heat insulation material.
The utility model for achieving the above object, be achieved through the following technical solutions, a kind of external thermal insulation system shock test member, it is characterized in that: comprise the shock test member bodies, described shock test member bodies constitutes the longitudinal cross-section shape by loading beam, middle basic unit wall and grade beam and is " worker " font.
Basic unit's wall is provided with web member and lacing wire in the middle of described.
Basic unit's wall front surface is provided with tack coat in the middle of described, and bonding area is not less than 80%, and thickness is 6-10mm.
The position up and down of basic unit's wall in the middle of described web member is located at.
Described lacing wire is in advance built in the steel tie of the inside of experiment warming plate, and described steel tie is connected with middle basic unit wall.
The cross sectional shape of described shock test member bodies X-Y direction is L shaped or T shape.
Described shock test member bodies adopts concrete component, and the concrete design strength grade is C30 and C35, and axial compression ratio is 0.1-0.4.
The wide b of the high H/ wall of described shock test member bodies wall
wShear span ratio be 2-2.5, the wide b of wall
w/ wall thickness h
wThe high length depth ratio of limb be 6-10, wall thickness is 160mm-200mm, described " L " shape shock test member bodies flange width b
fBe 320mm-400mm, "T"-shaped shock test member bodies flange width b
fBe 480mm-600mm.
Described loading beam width is with the flange width b of middle basic unit wall
f, highly be 300mm, length is the wide b of wall of middle basic unit wall
w
Described ground beam width is with the flange width b of middle basic unit wall
f, be 500mm highly, length is for respectively to extend 500mm along middle basic unit wall both sides.
Beneficial effect: making of the present utility model, filled up the blank that external thermal insulation system quake-resistant safety test component lacks, by this test specimen being carried out the low cycle repetitive load test, can judge the quake-resistant safety performance of external thermal insulation system effectively.The utility model has been stipulated concrete size and the quantity of reinforcement of external wall outer insulation shock test member, can finish corresponding shock test quickly, does not need again test component to be designed checking computations repeatedly.A kind of external thermal insulation system shock test member described in the utility model can be applicable to the quake-resistant safety test of any external thermal insulation system, is particularly suitable for the shock test of inorganic heat insulation material.
Description of drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is the utility model longitudinal cross-section structural representation; (Figure of abstract)
Fig. 3 is that shock test member bodies X-Y is to the T-shaped synoptic diagram of cross sectional shape;
Fig. 4 is that shock test member bodies X-Y is to the L-shaped synoptic diagram of cross sectional shape;
Fig. 5 is the displacement meter arrangenent diagram;
Fig. 6 is loading system synoptic diagram.
Among the figure: 1, middle basic unit wall, 2, tack coat, 3, lacing wire, 4, finish coat, 5, web member, 6, warming plate 7, loading beam, 8, grade beam, 9, displacement meter.
Embodiment
Below in conjunction with preferred embodiment, details are as follows to embodiment that foundation the utility model provides: referring to Fig. 1, Fig. 2, a kind of external thermal insulation system shock test member, comprise the shock test member bodies, described shock test member bodies constitutes the longitudinal cross-section shape by loading beam 7, middle basic unit wall 1 and grade beam 8 and is " worker " font.Basic unit's wall is provided with web member 5 and lacing wire 3 in the middle of described.Basic unit's wall front surface is provided with tack coat 2 in the middle of described, and bonding area is not less than 80%, and thickness is 6-10mm., bonding and thermal insulation plate 6 on tack coat, warming plate surface bonding applique surface layer 4, the position up and down of basic unit's wall in the middle of described web member is located at.Described lacing wire is in advance built in the steel tie of the inside of experiment warming plate 6, and described steel tie is connected with middle basic unit wall.Referring to Fig. 3, Fig. 4, the cross sectional shape of described shock test member bodies X-Y direction is L shaped or T shape.Described shock test member bodies adopts concrete component, and the concrete design strength grade is C30 and C35, and axial compression ratio is 0.1-0.4.The wide b of the high H/ wall of described shock test member bodies wall
wShear span ratio be 2-2.5, the wide b of wall
w/ wall thickness h
wThe high length depth ratio of limb be 6-10, wall thickness is 160mm-200mm, described " L " shape shock test member bodies flange width b
fBe 320mm-400mm, "T"-shaped shock test member bodies flange width b
fBe 480mm-600mm.Described loading beam width is with the flange width b of middle basic unit wall
f, highly be 300mm, length is the wide b of wall of middle basic unit wall
wDescribed ground beam width is with the flange width b of middle basic unit wall
f, be 500mm highly, length is for respectively to extend 500mm along middle basic unit wall both sides.
Insulation shock test member carries out the energy saving building steaming and presses the shock test process of sand aerating peripheral protective system to further specify
1, test objective
For pressing the anti-seismic performance of sand aerated insulation plate thin plastering exterior wall heat-insulation system to make scientific evaluation to steaming, this project adopts the low cycle repetitive load test that it is studied, cracking or the dropping situations of warming plate when strain cracking, dropping situations, the especially concrete wall of observing warming plate in the deformation of wall process reaches the interlayer elastoplasticity displacement limit value that " seismic design provision in building code " (GB50011) stipulate; During different phases such as the middle basic unit of measurement wall cracking, surrender and destruction, the stressed and distortion situation of the warming plate of local location, adhesive mortar, web member etc.; The sequencing that research warming plate under low Zhou Fanfu push-and-pull load action comes off and destroys with concrete wall; At last according to experimental phenomena and test data analyzer, the whole anti-seismic performance of warming plate thin plastering exterior wall heat-insulation system is provided evaluation.
2, test specimen is made
Test specimen is divided into two kinds of section forms, and a kind of is L type cross section, and basic size is: height * wide * thick=2300mm * 1300mm * 150mm(L type edge of a wing length is 300mm); A kind of is T type cross section, and basic size is: height * wide * thick=2300mm * 1300mm * 150mm(T type edge of a wing length is 450mm).Design six test specimens altogether based on these two kinds of cross sectional shapes, be respectively:
1) the SJ1-L type is only smeared adhesive mortar way test specimen (three layers of warming plate-only smear adhesive mortar is pasted in back side web bottom), and this test specimen constitutes the external corner form at outer web and the edge of a wing paste heat-preserving plate of body of wall, and the paste heat-preserving plate is by only smearing the adhesive mortar way.
2) SJ2-L type standing procedure test specimen (back side is the paste heat-preserving plate not), this test specimen constitute the external corner form at outer web and the edge of a wing paste heat-preserving plate of body of wall, and the paste heat-preserving plate is according to standing procedure.
3) SJ3-L type concrete wall test specimen, this test specimen two sides be paste heat-preserving plate not all.
4) SJ4-L type standing procedure test specimen (mortar is smeared at the back side), this test specimen constitute the external corner form at outer web and the edge of a wing paste heat-preserving plate of body of wall, and the paste heat-preserving plate is according to standing procedure.
5) SJ5-T type standing procedure test specimen (back side is the paste heat-preserving plate not), this test specimen is at web and the edge of a wing paste heat-preserving plate of body of wall, and the paste heat-preserving plate is according to standing procedure.
6) the SJ6-T type is only smeared adhesive mortar way test specimen (back side web is pasted three layers of warming plate-add up and down web member), and this test specimen is at web and the edge of a wing paste heat-preserving plate of body of wall, and the paste heat-preserving plate is by only smearing the adhesive mortar way.
Six test specimen shear span ratios are 1.77, and it is 544.8kN that axial compression ratio all is designed to 0.15(L type test specimen vertical load, and T type test specimen vertical load is 601.2kN).The test specimen strength grade of concrete is got C25 and the shear wall minimum steel ratio (GB50011) stipulated by " seismic design provision in building code " carries out arrangement of reinforcement.Arrangement of reinforcement situation for shear wall in the simulation practical structures arranges edge member at the wall section two ends, and its vertical muscle is configured in the body of wall both sides.The edge member vertical reinforcement gets 6 14, and stirrup is Φ 8150, and the vertical distribution bar of body of wall gets 8150, and level gets 8150 to distribution bar.
The concrete loading beam also need be established in the body of wall top, and the loading beam cross section is wide * and height is 450mm * 300mm, and is consistent with body of wall length, and the loading beam longitudinal reinforcement is 8 14 altogether, stirrup is Φ 8150.
For test specimen is fixed in ground, need under the test specimen body of wall cast-in-place wide * height is the reinforced concrete grade beam of 500mm * 500mm, the ground beam length is that the 2300mm(both sides respectively grow body of wall 500mm), the thick test body of wall of 150mm is arranged at grade beam central authorities.Grade beam longitudinal reinforcement up and down is 10 16 altogether, and stirrup is Φ 8150.
3, measuring point arranges 1) shear force wall reinforcing steel bar foil gauge layout: test has this time been arranged foil gauge at vertical reinforcement and the shear wall inner horizontal distribution bar of shear wall edge member.2) warming plate steel tie foil gauge is arranged: test has this time been arranged foil gauge in the lacing wire of part test specimen bottom.3) the web member foil gauge is arranged: this time test mainly is to have arranged foil gauge on the bottom web member.
4, displacement meter is arranged
Referring to Fig. 5, place two displacement meter 9(range 200mm in the termination, top of concrete foundation wall), place a displacement meter (range 50mm) in the ground beam end simultaneously, in order to the horizontal shift of measuring foundation wall and the slippage situation of grade beam.To insert signal amplifier respectively by load and the displacement that actuator is gathered gained, insert the data collection and analysis instrument again, can realize the load-displacement curve of simultaneous observation test specimen by X-Y plotter.To import computing machine in the lump by the data of displacement meter, resistance strain gage and actuator collection gained, can realize the synchronous collection of data.
The apparatus system of this test is made up of vertical loading system and horizontal loading system two parts.The body of wall test specimen is anchored at testing table by two girder steels and high-strength bolt with test specimen lower end grade beam and takes.Vertical load is applied by the hydraulic jack of the bigger portal frame of rigidity by 100t, place the tetrafluoroethene plate of 8mm thickness in the middle of lifting jack and the loading beam, when body of wall is subjected to horizontal loads and produces horizontal shift, but can guarantee to test the border of test specimen translation, reduce horizontal direction friction force.
The electro-hydraulic servo actuator that the horizontal push-pull effort of horizontal force loading employing is 200t applies, the horizontal force that is subjected to when the earthquake with imitation specimen, wherein horizontal thrust realizes by promoting test specimen loading beam right-hand member, and horizontal pull is to realize by a steel plate and four reinforcing pull rods of being installed in test specimen loading beam left end.The size of horizontal loading is transferred on the X-Y function recording instrument and records by being installed in load transducer on the push-and-pull lifting jack.In order to prevent that test specimen is displaced sideways under horizontal loads, steel has been installed at the grade beam two ends of test specimen has been pressed beam and reaction beam, and be bolted to earth anchor in the geosyncline of testing laboratory.
6, loading system
Referring to Fig. 6, at first apply xial feed during test, and retainer shaft is stable to payload values when applying the repetition test load.Whole loading procedure adopts displacement control.The horizontal loading time sequencing is: the slow applied thrust of actuator, and the crack situation of while close observation sand aerated insulation plate outside surface, the displacement when article one crack is appearred in sand aerating external wall insulation system outside surface is decided to be forward P
CrActuator slowly applies pulling force then, and the crack situation of close observation sand aerating external wall insulation system outside surface simultaneously is decided to be reverse P with reverse article one crack displacement of sand aerating external wall insulation system outside surface
CrAfter this displacement loads step by step, and loadings increment is H/360=6.4mm, reaches elastoplasticity displacement limits H/120 or shear wall test specimen destruction (bearing capacity drop to peak value 85%) until agent structure shear wall member.Every grade of displacement circulates three times.
7, conclusion (of pressure testing)
1) pastes warming plate outward for L type and T type cross section body of wall, when the relative displacement of concrete wall top reaches the elasticity relative storey displacement limit value (H/1000) that " seismic design provision in building code " (GB50011) stipulate, a small amount of horizontal fracture appears in the concrete wall bottom, and the outer mortar of warming plate a small amount of crack also occurs in the horizontal mortar joint place.
2) paste warming plate outward for L type and T type cross section body of wall, when the relative displacement of concrete wall top reaches the elastoplasticity relative storey displacement limit value (H/120) that " seismic design provision in building code " (GB50011) stipulate, concrete wall and warming plate all occur than multiple cracking and crack diagonal expansion, and the cracking situation of warming plate will be lighter than concrete wall.
3) paste warming plate outward for L type and T type cross section body of wall, when concrete wall reached destruction (bearing capacity drop to peak value 85%), body of wall destroyed or distortion has than large fracture than the large part warming plate, and glass fiber net is broken and exposed phenomenon, but systematic entirety is better, does not come off.
4) in the concrete wall deformation process, glass fiber net and outer mortar can delay the development in warming plate crack, and just because of the effect of adhesive mortar, glass fiber net and outer mortar, the warming plate crack will be lighter than concrete wall.
5) the big position of malformation under the geological process as body of wall end, bight, coupling beam and wall between windows etc., also is the exterior wall heat-preserving system position of cracking easily.At the body of wall failure stage, the glass fiber net and the web member that arrange in the system play important effect, even at the position that moderate finite deformation takes place, warming plate is not seen yet and come off.
When 6) relative displacement of body of wall top reached the elasticity relative storey displacement limit value (H/1000) that " seismic design provision in building code " (GB50011) stipulate, web member and reinforcement stress were all less and do not play a role substantially; When reaching elastoplasticity relative storey displacement limit value (H/120), web member and reinforcement stress are increased by a small margin and are brought into play partial action; When reaching destruction (bearing capacity drop to peak value 85%), web member and reinforcement stress increase obviously, but still less and not surrender of stress, and web member and lacing wire can significantly limit and delay warming plate and body of wall is peeled off, and prevent that warming plate from coming off when body of wall destroys.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (10)
1. external thermal insulation system shock test member, it is characterized in that: comprise the shock test member bodies, described shock test member bodies constitutes the longitudinal cross-section shape by loading beam, middle basic unit wall and grade beam and is " worker " font.
2. external thermal insulation system shock test member according to claim 1 is characterized in that: basic unit's wall is provided with web member and lacing wire in the middle of described.
3. external thermal insulation system shock test member according to claim 1 and 2 is characterized in that: basic unit's wall front surface is provided with tack coat in the middle of described, and bonding area is not less than 80%, and thickness is 6-10mm.
4. external thermal insulation system shock test member according to claim 3 is characterized in that: the position up and down of basic unit's wall in the middle of described web member is located at.
5. external thermal insulation system shock test member according to claim 4 is characterized in that: described lacing wire is in advance built in the steel tie of the inside of experiment warming plate, and described steel tie is connected with middle basic unit wall.
6. external thermal insulation system shock test member according to claim 5, it is characterized in that: the cross sectional shape of described shock test member bodies X-Y direction is L shaped or T shape.
7. external thermal insulation system shock test member according to claim 6 is characterized in that: described shock test member bodies adopts concrete component, and the concrete design strength grade is C30 and C35, and axial compression ratio is 0.1-0.4.
8. external thermal insulation system shock test member according to claim 7 is characterized in that: the wide b of the high H/ wall of described shock test member bodies wall
wShear span ratio be 2-2.5, the wide b of wall
w/ wall thickness h
wThe high length depth ratio of limb be 6-10, wall thickness is 160mm-200mm, described " L " shape shock test member bodies flange width b
fBe 320mm-400mm, "T"-shaped shock test member bodies flange width b
fBe 480mm-600mm.
9. external thermal insulation system shock test member according to claim 8, it is characterized in that: described loading beam width is with the flange width b of middle basic unit wall
f, highly be 300mm, length is the wide b of wall of middle basic unit wall
w
10. external thermal insulation system shock test member according to claim 9, it is characterized in that: described ground beam width is with the flange width b of middle basic unit wall
f, be 500mm highly, length is for respectively to extend 500mm along middle basic unit wall both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220730004 CN203069343U (en) | 2012-12-25 | 2012-12-25 | Exterior wall outer insulation system seismic test member |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220730004 CN203069343U (en) | 2012-12-25 | 2012-12-25 | Exterior wall outer insulation system seismic test member |
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| CN203069343U true CN203069343U (en) | 2013-07-17 |
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| CN 201220730004 Expired - Lifetime CN203069343U (en) | 2012-12-25 | 2012-12-25 | Exterior wall outer insulation system seismic test member |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414352A (en) * | 2018-01-09 | 2018-08-17 | 同济大学 | A kind of bidirectional experimental loading device |
-
2012
- 2012-12-25 CN CN 201220730004 patent/CN203069343U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414352A (en) * | 2018-01-09 | 2018-08-17 | 同济大学 | A kind of bidirectional experimental loading device |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
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Granted publication date: 20130717 |