CN103510530A - Embedded foundation of composite wallboard and implementation method thereof - Google Patents
Embedded foundation of composite wallboard and implementation method thereof Download PDFInfo
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- CN103510530A CN103510530A CN201310483089.7A CN201310483089A CN103510530A CN 103510530 A CN103510530 A CN 103510530A CN 201310483089 A CN201310483089 A CN 201310483089A CN 103510530 A CN103510530 A CN 103510530A
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Abstract
The invention discloses an embedded foundation of a composite wallboard. The embedded foundation of the composite wallboard comprises a semi-assembly composite reinforced concrete wallboard and a cast-in-place reinforced concrete embedded foundation body with a groove. After hoisting and locating of a prefabricated portion of the semi-assembly composite reinforced concrete wallboard are accomplished, concrete is poured into a core area of the semi-assembly composite reinforced concrete wallboard and the groove of the cast-in-place reinforced concrete embedded foundation body in a cast-in-place mode so that a whole can be formed by the semi-assembly composite reinforced concrete wallboard and the cast-in-place reinforced concrete embedded foundation body in a pouring mode, and build-in joints which are good in stress are formed. According to the embedded foundation of the composite wallboard, due to the facts that the embedded foundation mode is adopted, and the whole is formed by the cast-in-place reinforced concrete embedded foundation body with the groove and the semi-assembly composite reinforced concrete wallboard through post-cast of concrete, the stress performance of the whole can be more similar to a cast-in-place concrete structure, good build-in ends can be formed, the phenomenon that ductility is poor due to the fact that deformation of a composite plate-type shear wall centers on the area nearby horizontal abutted seams through the action of a horizontal earthquake is effectively avoided, and the phenomena that the section, on the top of a foundation, of an outer composite wallboard of a basement is poor in flexural capacity, and water seepage easily happens are effectively avoided.
Description
Technical field
The invention belongs to technical field of structural engineering, relate in particular to the embedded basis of a kind of superimposed wallboard and implementation method thereof.
Background technology
Partly assemble superimposed wallboard generally as the main lateral resistant member of reinforced concrete structure, form superimposed board-like shear wall structure.The pre-erection of superimposed wallboard is comprised of two-layer precast plate and the lattice reinforcing bar that plays connection function.After the on-the-spot installation in position of prefabricated units, necessary steel bar stress and distributing bar are set, at the core position of prefabricated panel, the position concreting such as edge member, thereby form superposed type force structure.The basis that superimposed wallboard is conventional connects the form that adopts horizontal piece, utilize basic joint bar to extend in the core cast-in-situ concrete of superimposed wallboard, thereby the load that structure is born passes to basis.The elastoplasticity reaction of the superimposed board-like shear wall that adopts this base configuration form under horizontal earthquake action is deformed into master with " waving ", the continuous opening and closing of piece between wall and basis under course under cyclic loading, concentration of plastic deformation is near piece, deformability to concrete and reinforcing bar is had relatively high expectations, and causes structure ductility poor compared with cast-in-place concrete shear wall.
Superimposed wallboard also can be used as the side fascia (retaining wall) of basement.Now, under earth lateral pressure effect, wallboard be take and born moment-out-plane as main.Yet, superimposed wallboard is in horizontal piece cross section, basic top, stressed longitudinal reinforcement is the basic joint bar being arranged in the cast-in-situ concrete of wallboard core, therefore under moment-out-plane effect, bottom section effective height greatly reduces, and section bearing capacity reduces, and becomes stressed weak link, when waterproof measure, deal with Shi，Gai position improperly and easily produce the hidden danger of quality such as infiltration.
In order to improve the stress performance of superimposed wallboard under horizontal earthquake action and lateral earth pressure effect, it is reached and be equal to the stressed object of cast-in-place concrete shear wall, can adopt embedded basis.
Summary of the invention
The object of the invention is, in order to make up the deficiency of prior art, provides the embedded basis of a kind of superimposed wallboard and implementation method thereof.
The present invention is achieved through the following technical solutions:
The embedded basis of a kind of superimposed wallboard, it is characterized in that: include half assembling superposed type reinforced concrete wall panel and form with the embedded basis with reeded cast-in-situ steel reinforced concrete, after described pre-erection lifting location of partly assembling in superposed type reinforced concrete wall panel, by cast-in-situ concrete in partly assembling superposed type reinforced concrete wall panel core space and basic groove, superimposed wallboard and embedded basis are watered and built up integral body, form stressed good build-in node.
Described embedded basis can be used for flat raft basis, beam raft foundation, strip foundation or pile foundation bar shaped cushion cap under shear wall, also can be used for superposed type outer wall of basement plate base.
The described superposed type reinforced concrete wall panel that partly assembles is used as while bearing the shear wall of larger horizontal loading, and embedded basic planted agent arranges basic joint bar, stretches in half assembling superposed type reinforced concrete wall panel core cast-in-situ concrete; When described superimposed wallboard is used as the basement wall, basic joint bar can be set.
Prefabricated panel external surface in described embedding basis and basic recess sidewall inner surface all should be taked to scrape the measures such as hair and make its roughening.
Described reinforced concrete embedded basic recess sidewall planted agent arranges steel bar stress.
Described superimposed wallboard bottommost one row of horizontal reinforcing bar should weld with vertical applied force reinforcing bar.
Described rear pouring concrete should adopt microlith slightly expanded concrete.
The described job practices of partly assembling the embedded basis of superimposed wallboard, is characterized in that: specifically include following steps:
(1) first colligation reinforcement foundation concreting form groove, and groove cross section is trapezoidal, and bottom width is (h+100) mm, and top width is (h+150) mm, and h is superimposed wallboard thickness;
(2) recess sidewall inner surface and prefabricated panel being embedded to inside grooves divides external surface to adopt to scrape the measures such as hair and makes it coarse;
(3) at basic groove top, place square spacer pad, prefabricated panel is inserted in groove, be placed on spacer pad, the object one of placement positioning cushion block is to utilize it to prefabricated panel, to carry out leveling, the 2nd, reserving gaps between wallboard bottom and basic groove top, makes prefabricated panel core space and groove inner concrete can connect into integral body.Cushion block height is about 40mm;
(4) proofread and correct after the verticality and position of prefabricated panel, by positioning supports, fix;
(5) colligation situ part reinforcing bar, formwork;
(6) in superimposed sheet nucleus and spill basis, build microlith slightly expanded concrete, vibrate and maintenance, superimposed wallboard and basis are formed whole.
For meeting the build-in requirement of shear wall, its insert depth should not be too little, general desirable h～1.5h, and h is shear wall thickness.If now in wallboard, the anchorage length of Reinforcement is undesirable, can be by superimposed wallboard bottommost one row of horizontal reinforcing bar and the welding of vertical applied force reinforcing bar, to improve its anchorage effect;
When superimposed wallboard is when bearing the shear wall of larger horizontal loading, for preventing that under Moment, the destruction of extracting along basic groove occurs tensile region shear wall, basic planted agent arranges basic joint bar, stretches in the cast-in-situ concrete of superimposed wallboard core.Joint bar can be two rows, also can be easy construction only at the larger reinforcing bar of intermediate arrangement one row's diameter; When superimposed wallboard is used as the basement wall, because the moment of flexure of bearing is relatively little, in the situation that shear wall insert depth is enough, can there is not the destruction of extracting along groove, therefore basic joint bar can be set.
For strengthening the frictional force between wallboard and basic groove, the prefabricated panel external surface in embedding basis and basic recess sidewall inner surface all should take to scrape the measures such as hair makes its roughening.
Embedded basic recess sidewall planted agent according to circumstances arranges steel bar stress, curved to prevent, break bad.
For improving joints performance, convenient construction, alleviates the difficulty of vibrating, and rear pouring concrete should adopt microlith slightly expanded concrete.
Advantage of the present invention is:
The basic type of attachment of the horizontal piece of employing that the present invention is conventional with superimposed wallboard is compared, adopt Embedded base form, spill basis forms integral body with superimposed wallboard by rear pouring concrete, its stress performance more approaches cast-in-place concrete structure, can form good position of fixity, thereby effectively avoided distortion under superimposed board-like shear wall horizontal earthquake action to cause the poor situation of ductility near concentrating on horizontal piece, and superposed type the basement wall is in the situation of low, the easy generation infiltration of basic top cross-section anti-bending bearing capacity.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is applied to flat raft basis under shear wall.
Fig. 2 is the structural representation that the present invention is applied to shear wall underbeam raft foundation.
Fig. 3 is the structural representation that the present invention is applied to strip foundation under shear wall.
Fig. 4 is the structural representation that the present invention is applied to pile foundation bar shaped cushion cap under shearing.
Fig. 5 is the structural representation that the present invention is applied to outer wall of basement plate base.
The specific embodiment
Referring to accompanying drawing, the embedded basis of a kind of superimposed wallboard, include half assembling superposed type reinforced concrete wall panel and form with the embedded basis of the cast-in-situ steel reinforced concrete of basic groove 4, after partly assembling the pre-erection 1 lifting location in superposed type reinforced concrete wall panel, by partly assembling superposed type reinforced concrete wall panel core space 3 and the interior cast-in-situ concrete of basic groove 4, superimposed wallboard and embedded basis are watered and built up integral body, form stressed good build-in node.The pre-erection of superimposed wallboard is comprised of two-layer precast plate and the lattice reinforcing bar 2 that plays connection function.
If embedded basis is flat raft basis 8, beam raft foundation 9, strip foundation 11 or pile foundation bar shaped platform 10, also can be superposed type outer wall of basement plate base 12.Partly assemble superposed type reinforced concrete wall panel and be used as while bearing the shear wall of larger horizontal loading, embedded basic planted agent arranges basic joint bar 7, stretches in half assembling superposed type reinforced concrete wall panel core cast-in-situ concrete 3; When superimposed wallboard is used as the basement wall, basic joint bar can be set.Prefabricated panel external surface in embedding basis and basic groove 4 side wall inner surfaces all should take to scrape the measures such as hair makes its roughening.Reinforced concrete embedded basic groove 4 sidewall planted agents arrange steel bar stress.Superimposed wallboard bottommost one row of horizontal reinforcing bar 6 should weld with vertical applied force reinforcing bar.Rear pouring concrete should adopt microlith slightly expanded concrete.
This base form can be used for, in four kinds of different shear walls bases shown in Fig. 1-4, also can be used in the outer wall of basement plate base being connected with basement bottom board 12 shown in Fig. 5.Specific construction process is as follows: (1) is colligation reinforcement foundation concreting basis of formation groove 4 first, and basic groove 4 cross sections are trapezoidal, and bottom width is (h+100) mm, and top width is (h+150) mm, and h is superimposed wallboard thickness; (2) basic groove 4 side wall inner surfaces and prefabricated panel being embedded to 4 inner minutes external surfaces of basic groove adopts and scrapes the measures such as hair and make it coarse; (3) at basic groove 4 tops, place square spacer pad 5, prefabricated panel is inserted in basic groove 4, be placed on spacer pad 5.The object one of placement positioning cushion block 5 is to utilize it to prefabricated panel, to carry out leveling, the 2nd, and reserving gaps between wallboard bottom and basic groove 4 tops, makes prefabricated panel core space 3 and basic groove 4 inner concretes can connect into integral body.Cushion block height is about 40mm; (4) proofread and correct after the verticality and position of prefabricated panel, by positioning supports, fix; (5) colligation situ part reinforcing bar, formwork; (6) in superimposed sheet nucleus and spill basis, build microlith slightly expanded concrete, vibrate and maintenance, superimposed wallboard and basis are formed whole.
Claims (8)
1. the embedded basis of superimposed wallboard, it is characterized in that: include half assembling superposed type reinforced concrete wall panel and form with the embedded basis with reeded cast-in-situ steel reinforced concrete, after described pre-erection lifting location of partly assembling in superposed type reinforced concrete wall panel, by cast-in-situ concrete in partly assembling superposed type reinforced concrete wall panel core space and basic groove, superimposed wallboard and embedded basis are watered and built up integral body, form stressed good build-in node.
2. the embedded basis of superimposed wallboard according to claim 1, it is characterized in that: described embedded basis can be used for flat raft basis, beam raft foundation, strip foundation or pile foundation bar shaped cushion cap under reinforced concrete shear wall, also can be used for superposed type outer wall of basement plate base.
3. the embedded basis of superimposed wallboard according to claim 1, it is characterized in that: the described superposed type reinforced concrete wall panel that partly assembles is used as while bearing the shear wall of larger horizontal loading, embedded basic planted agent arranges basic joint bar, stretches in half assembling superposed type reinforced concrete wall panel core cast-in-situ concrete; When described superimposed wallboard is used as the basement wall, basic joint bar can be set.
4. the embedded basis of superimposed wallboard of partly assembling according to claim 1, is characterized in that: the prefabricated panel external surface in described embedding basis and basic recess sidewall inner surface all should be taked to scrape the measures such as hair and make its roughening.
5. the embedded basis of superimposed wallboard of partly assembling according to claim 1, is characterized in that: described reinforced concrete embedded basic recess sidewall planted agent arranges steel bar stress.
6. the embedded basis of superimposed wallboard of partly assembling according to claim 1, is characterized in that: described superimposed wallboard bottommost one row of horizontal reinforcing bar should weld with vertical applied force reinforcing bar.
7. the embedded basis of superimposed wallboard of partly assembling according to claim 1, is characterized in that: described rear pouring concrete should adopt microlith slightly expanded concrete.
8. the job practices of partly assembling the embedded basis of superimposed wallboard based on described in above-mentioned any one claims, is characterized in that: specifically include following steps:
(1) first colligation reinforcement foundation concreting form groove, and groove cross section is trapezoidal, and bottom width is (h+100) mm, and top width is (h+150) mm, and h is superimposed wallboard thickness;
(2) recess sidewall inner surface and prefabricated panel being embedded to inside grooves divides external surface to adopt to scrape the measures such as hair and makes it coarse;
(3) at basic groove top, place square spacer pad, prefabricated panel is inserted in groove, be placed on spacer pad, the object one of placement positioning cushion block is to utilize it to prefabricated panel, to carry out leveling, the 2nd, reserving gaps between wallboard bottom and basic groove top, makes prefabricated panel core space and groove inner concrete can connect into integral body; Cushion block height is about 40mm;
(4) proofread and correct after the verticality and position of prefabricated panel, by positioning supports, fix;
(5) colligation situ part reinforcing bar, formwork;
(6) in superimposed sheet nucleus and spill basis, build microlith slightly expanded concrete, vibrate and maintenance, superimposed wallboard and basis are formed whole.
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| CN201310483089.7A CN103510530A (en) | 2013-10-15 | 2013-10-15 | Embedded foundation of composite wallboard and implementation method thereof |
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| CN201310483089.7A CN103510530A (en) | 2013-10-15 | 2013-10-15 | Embedded foundation of composite wallboard and implementation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105970987A (en) * | 2016-06-22 | 2016-09-28 | 山东明达建筑科技有限公司 | Assembled construction prefabricated foundation |
| CN106088316A (en) * | 2016-08-12 | 2016-11-09 | 长沙远大住宅工业集团股份有限公司 | A kind of overlapping assembled integral basement of hollow building cover post and lintel system |
| CN106193324A (en) * | 2016-07-29 | 2016-12-07 | 初明进 | A kind of precast concrete method of attachment |
| CN106193127A (en) * | 2016-08-31 | 2016-12-07 | 长沙远大住宅工业集团股份有限公司 | Overlapping sandwich wall side wall and the connection node of cast-in-place base plate |
| CN106223476A (en) * | 2016-08-31 | 2016-12-14 | 初明进 | A kind of precast reinforced concrete structure method of attachment |
| CN106245787A (en) * | 2016-07-29 | 2016-12-21 | 初明进 | A kind of precast reinforced concrete structure method of attachment |
| CN107401215A (en) * | 2017-07-28 | 2017-11-28 | 武汉轻工大学 | Assembled architecture and construction process |
| CN108951869A (en) * | 2018-07-26 | 2018-12-07 | 陕西建筑产业投资集团有限公司 | A kind of full assembly concrete shear wall structure system of low layer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970987A (en) * | 2016-06-22 | 2016-09-28 | 山东明达建筑科技有限公司 | Assembled construction prefabricated foundation |
| CN106193324A (en) * | 2016-07-29 | 2016-12-07 | 初明进 | A kind of precast concrete method of attachment |
| CN106245787A (en) * | 2016-07-29 | 2016-12-21 | 初明进 | A kind of precast reinforced concrete structure method of attachment |
| CN106088316A (en) * | 2016-08-12 | 2016-11-09 | 长沙远大住宅工业集团股份有限公司 | A kind of overlapping assembled integral basement of hollow building cover post and lintel system |
| CN106193127A (en) * | 2016-08-31 | 2016-12-07 | 长沙远大住宅工业集团股份有限公司 | Overlapping sandwich wall side wall and the connection node of cast-in-place base plate |
| CN106223476A (en) * | 2016-08-31 | 2016-12-14 | 初明进 | A kind of precast reinforced concrete structure method of attachment |
| CN107401215A (en) * | 2017-07-28 | 2017-11-28 | 武汉轻工大学 | Assembled architecture and construction process |
| CN108951869A (en) * | 2018-07-26 | 2018-12-07 | 陕西建筑产业投资集团有限公司 | A kind of full assembly concrete shear wall structure system of low layer |
| CN108951869B (en) * | 2018-07-26 | 2020-07-28 | 陕西建筑产业投资集团有限公司 | Low-rise fully-assembled concrete shear wall structure system |
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Application publication date: 20140115 |