CN103899096A - Construction method and special component for increasing partial strength of precast concrete wall panel - Google Patents
Construction method and special component for increasing partial strength of precast concrete wall panel Download PDFInfo
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- CN103899096A CN103899096A CN201410139129.0A CN201410139129A CN103899096A CN 103899096 A CN103899096 A CN 103899096A CN 201410139129 A CN201410139129 A CN 201410139129A CN 103899096 A CN103899096 A CN 103899096A
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Abstract
The invention discloses a construction method for increasing partial strength of a precast concrete wall panel. The construction method is characterized by including: (1) preparing a special meshed component which is provided with a plurality of stereoscopic meshes and with the thickness being h; (2) arranging a groove in a wall panel surface of a part of the precast concrete wall panel or around the precast concrete wall panel by grinding, wherein the recessing depth of the groove is 1.2 to 5 times of h; (3) fixedly nailing the special meshed component on the bottom of the groove via fasteners, and fixedly inlaying by a binding agent so as to form an integrated structure of the fasteners, the binding agent and the special meshed component; (4) leveling the groove by mortar, enabling the meshes of the special meshed component to be fully filled with the mortar, and forming a structure strengthened layer with the fasteners, the binding agent, the mortar and the special meshed component mixed and inlaid after solidification, and thereby the partial strength of the wall panel is increased. The invention further discloses the special meshed component for implementing the construction method.
Description
Technical field
The present invention relates to technical field of building construction, be specifically related to improve the construction method of precast concrete board wall local strength, the structure that the method forms and the special-purpose member of implementing the method.
Background technology
At present, the raggle position of the pipe network of loading onto in concrete prefabricated wallboard inner sleeve, and ubiquity cracking in the position such as box processed, door on setting-in.This is mainly that the stress of wallboard is mainly the surrounding face that is distributed in wallboard, wallboard is once being drilled with upper hole or cutting a hole and dig out groove, the stress of wallboard will be redistributed, and mainly concentrate on set hole or raggle position around, and form board wall weak part, thereby the as easy as rolling off a log crack that occurs.We study discovery, and existing technology is mainly to paste common glass fibre belt in conjunction with toughness coating mode sealing on metope surface, the caused cracking in reply wallboard stress concentration portion position.Practical experience shows, this way is difficult to play the effect that improves body of wall mechanical characteristics.Therefore, thoroughly solve concrete panel weak part problem of Cracking, in the urgent need to seeking the construction method that strengthens precast concrete board wall weak part.
Summary of the invention
The present invention be directed to deficiency of the prior art, and a kind of construction method of precast concrete board wall local strength, the structure that the method forms and special-purpose member of implementing the method for improving is provided.
For achieving the above object, the technical solution used in the present invention is:
The construction method that improves precast concrete board wall local strength, is characterized in that, comprises the steps:
(1) preparation Special net shape member, the thickness of this Special net shape member is h; Described Special net shape member is the space network that is provided with multiple three-dimensional mesh, comprises that many intersect to form this cancellated edge strip mutually, and each edge strip is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib being affixed in groove floor; Its position, limit be provided with turn over or under the edging that turns over.
(2) local at precast concrete board wall or around surfaces of wall mill set out groove, the recessed concrete panel of this groove surface 1.2 is to 5h.Described groove is positioned at precast concrete board wall part or front, the back side or side (for concrete setting, can choose according to actual conditions) around.Described part is the stress concentration portion position of precast concrete board wall, or the splicing position of two precast concrete board walls, i.e. weak part.Described stress concentration portion position is hole-opening on precast concrete board wall, fluting, breach, or connects the position of upper primary structure member, as the position of door hinge in anchoring.Described perforate, fluting or gap portions are embedded with electricity box processed, supply and discharge water pipe, conduit, door hinge or door lock etc.Described groove and the forming hole of precast concrete board wall intersect horizontally set, and the limit face that its both lateral sides is stretched out wallboard inside aperture, fluting or breach is not less than 80mm, and the limit face 50 that wallboard inside aperture, fluting or breach are stretched out in vertical both sides is to 200mm.
(3) described Special net shape member is solid in described groove floor with nailing, carries out inlaid solidly simultaneously with cementing agent, make nailing, cementing agent and Special net shape member form integrative-structure.Comprise following two kinds of situations: first by inlaid solid in described groove floor Special net shape member cementing agent, more solid with nailing nail; Or, first Special net shape member is solid in described groove floor with nailing, then carries out inlaid solid with cementing agent.Make nailing, cementing agent and Special net shape member form integrative-structure and comprise following ingredient: described nailing is worn anchor to described groove floor by described Special net shape member, described cementing agent forms tack coat between described reticular component and described groove floor, and part cementing agent is embedded in the mesh of described Special net shape member.
(4) fill described groove with mortar, filled with mortar is entered in Special net shape member mesh, the structure-reinforced layer of fixed rear formation nailing, cementing agent, mortar and Special net shape member mixing build-in, the intensity of strengthening board wall part.
Wherein, the value of h is 1 to 10mm.
In the time that described part is the splicing position between precast concrete board wall and precast concrete board wall, described groove be located at the Special net shape member in groove floor, across two precast concrete board walls that mutually splice, and described groove is provided with many places with the Special net shape member of being located in groove floor along splicing seams, distance is each other between 200 to 500mm, and the lateral length at its every place is not less than 100mm.
Formed by described method for improving the structure of precast concrete board wall local stability.This structure can improve precast concrete board wall part or overall intensity, stability, strengthens antidetonation, cracking resistance, impact resistance, more safe and reliable.
The Special net shape member of implementing described method, is characterized in that, it is the space network that is provided with multiple three-dimensional mesh, comprises that many intersect to form this cancellated edge strip mutually, and each edge strip is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib being affixed in groove floor.Its position, limit be provided with turn over or under the edging that turns over.It is metal net shaped member or fibrous web-like member, and material is metal or the tensile strength fiber higher than same cross section cold rolled plate.
The structure that the construction method of raising precast concrete board wall provided by the invention local strength and the method form, at precast concrete board wall local or need to resist external impacts position or around mill establish groove, and in groove floor inlaid solid Special net shape member, fill again, such structure can successfully manage the perforate of precast concrete board wall, the problem of stress concentration that the positions such as fluting or breach produce, can strengthen the stability at this position, intensity and anti-impact force, make precast concrete board wall part in the situation that being subject to external impacts, not broken easily yet, fracture, security reliability more.Solve the raggle position of the pipe network of loading onto in concrete prefabricated wallboard inner sleeve at present, and the deficiency that on setting-in, the position ubiquity such as box processed, door ftractures.In addition, the Special net shape member that the present invention adopts, draws and forms for metal material, stamping-out and punching, multiple cementation through holes of filling for binding material of its setting, after making adhesive or mortar pass through, combine closely with edge strip, realization is inlaid solid by Special net shape member, and increases adhesion strength.And its middle part or sidepiece are provided with for nailing and are affixed to rib in body of wall basic unit through, nail, make nailing, cementing agent form integrative-structure with Special net shape member, to more stable inlaid solid of Special net shape member realization.
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in more detail.
Brief description of the drawings
Fig. 1 is the structural scheme of mechanism of Special net shape member;
Fig. 2 is the structural representation of embodiment 2;
Fig. 3 is the structural representation of embodiment 3;
Fig. 4 is the structural representation of embodiment 4;
Fig. 5 is the structural representation of embodiment 5;
In figure: 1. Special net shape member; 11. edge strips, 12. ribs; 13 edgings; 2. groove;
3. forming hole; 4. nailing.
Detailed description of the invention
(1) preparation Special net shape member 1, the thickness of this Special net shape member 1 is h; Described Special net shape member 1, for being provided with the space network of multiple three-dimensional mesh, comprises that many intersect to form this cancellated edge strip 11 mutually, and each edge strip 11 is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib 12 being affixed on groove 2; Its position, limit be provided with turn over or under the edging 13 that turns over.
(2) local at precast concrete board wall or around surfaces of wall mill set out groove 2, these groove 2 recessed concrete panel surfaces 1.2 are to 5h.Described groove 2 is positioned at precast concrete board wall part or front, the back side or side (for concrete setting, can choose according to actual conditions) around.Described part is the stress concentration portion position of precast concrete board wall, or the splicing position of two precast concrete board walls, i.e. weak part.Described stress concentration portion position is hole-opening on precast concrete board wall, fluting, breach, or connects the position of upper primary structure member, as the position of door hinge in anchoring.Described perforate, fluting or gap portions are embedded with electricity box processed, door hinge, supply and discharge water pipe, conduit or door lock etc.Described groove 2 and the forming hole 3 of precast concrete board wall intersect horizontally set, and the limit face that its both lateral sides is stretched out wallboard inside aperture, fluting or breach is not less than 80mm, and the limit face 50 that wallboard inside aperture, fluting or breach are stretched out in vertical both sides is to 200mm.
(3) described Special net shape member 1 use nailing 4 is solid on described groove 2 bottom surfaces, carries out inlaid solidly simultaneously with cementing agent, make nailing, cementing agent and Special net shape member 1 form integrative-structure.
(4) fill described groove 2 with mortar, filled with mortar is entered in Special net shape member 1 mesh, the structure-reinforced layer of fixed rear formation nailing, cementing agent, mortar and Special net shape member mixing build-in, produce bond stress, Special net shape member 1 is bonded and fixed on groove 2 securely to the intensity of strengthening board wall part.
The span of h is 1 to 10mm, also can according to actual needs maximum value further be adjusted to 15-20mm.
In the time that described part is the splicing position between precast concrete board wall and precast concrete board wall, described groove 2 be located at the Special net shape member 1 on groove 2, across two precast concrete board walls that mutually splice, and described groove 2 is provided with many places with the Special net shape member 1 of being located on groove 2 along splicing seams, distance is each other between 200 to 500mm, and the lateral length at its every place is not less than 100mm.
Formed by described method for improving the structure of precast concrete board wall local stability.This structure can improve precast concrete board wall part or overall intensity, stability, strengthens antidetonation, cracking resistance, impact resistance, more safe and reliable.
The Special net shape member 1 of implementing described method, it is the space network that is provided with multiple three-dimensional mesh, comprises that many intersect to form this cancellated edge strip 11 mutually, and each edge strip 11 is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib 12 being affixed on groove 2.Its position, limit be provided with turn over or under the edging 13 that turns over.It is metal net shaped member or fibrous web-like member, and material is metal or the tensile strength fiber higher than same cross section cold rolled plate, specifically can need to select according to construction.
(1) preparation Special net shape member 1, the thickness of this Special net shape member 1 is 1mm; Described Special net shape member 1, for being provided with the space network of multiple three-dimensional mesh, comprises that many intersect to form this cancellated edge strip 11 mutually, and each edge strip 11 is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib 12 being affixed on groove 2; Its position, limit be provided with turn over or under the edging 13 that turns over.
(2) local at precast concrete board wall or around surfaces of wall mill set out groove 2, the recessed concrete panel of this groove 2 surface 5mm.Described groove 2 is positioned at front around, precast concrete board wall part.Described part is the position of slotting on precast concrete board wall.This fluting is provided with electricity box processed.Described groove 2 and the forming hole 3 of precast concrete board wall intersect horizontally set, and its both lateral sides stretches out local 80mm, and local 50mm is stretched out in vertical both sides.
(3) described Special net shape member 1 use nailing 4 is solid on described groove 2 bottom surfaces, carry out with cementing agent simultaneously inlaid solid, form nailing, cementing agent and Special net shape member 1 integrative-structure.
(4) fill described groove 2 with mortar, filled with mortar is entered in Special net shape member 1 mesh, the structure-reinforced layer of fixed rear formation nailing, cementing agent, mortar and Special net shape member mixing build-in, produce bond stress, Special net shape member 1 is bonded and fixed on groove 2 securely to the intensity of strengthening board wall part.
Formed by described method for improving the structure of precast concrete board wall local stability.
Implement the Special net shape member 1 of described method.
(1) preparation Special net shape member 1, the thickness of this Special net shape member 1 is 10mm; Described Special net shape member 1, for being provided with the space network of multiple three-dimensional mesh, comprises that many intersect to form this cancellated edge strip 11 mutually, and each edge strip 11 is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib 12 being affixed on groove 2; Its position, limit be provided with turn over or under the edging 13 that turns over.
(2) local at precast concrete board wall or around surfaces of wall mill set out groove 2, the recessed concrete panel of this groove 2 surface 12mm.Described groove 2 is positioned at local or front and the back side around of precast concrete board wall, and around wherein front is arranged on (upper and lower both sides), the back side is arranged on part and around.Described part is the position of slotting on precast concrete board wall.Described groove 2 and the forming hole 3 of precast concrete board wall intersect horizontally set, and its both lateral sides stretches out local 100mm, and local 200mm is stretched out in vertical both sides.
(3) described Special net shape member 1 use nailing 4 is solid on described groove 2 bottom surfaces, carry out with cementing agent simultaneously inlaid solid, form nailing, cementing agent and Special net shape member 1 integrative-structure.
(4) fill described groove 2 with mortar, filled with mortar is entered in Special net shape member 1 mesh, the structure-reinforced layer of fixed rear formation nailing, cementing agent, mortar and Special net shape member mixing build-in, produce bond stress, Special net shape member 1 is bonded and fixed on groove 2 securely to the intensity of strengthening board wall part.
Formed by described method for improving the structure of precast concrete board wall local stability.
(1) preparation Special net shape member 1, the thickness of this Special net shape member 1 is 5mm; Described Special net shape member 1, for being provided with the space network of multiple three-dimensional mesh, comprises that many intersect to form this cancellated edge strip 11 mutually, and each edge strip 11 is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib 12 being affixed on groove 2; Its position, limit be provided with turn over or under the edging 13 that turns over.
(2) local at precast concrete board wall or around surfaces of wall mill set out groove 2, the recessed concrete panel of this groove 2 surface 8mm.Described groove 2 is positioned at precast concrete board wall part or front, the back side and side around.Described part is the gap portions (groove) of precast concrete board wall upper side.
(3) described Special net shape member 1 use nailing 4 is solid on described groove 2 bottom surfaces, carry out with cementing agent simultaneously inlaid solid, form nailing, cementing agent and Special net shape member 1 integrative-structure.
(4) fill described groove 2 with mortar, filled with mortar is entered in Special net shape member 1 mesh, the structure-reinforced layer of fixed rear formation nailing, cementing agent, mortar and Special net shape member mixing build-in, produce bond stress, Special net shape member 1 is bonded and fixed on groove 2 securely to the intensity of strengthening board wall part.
Formed by described method for improving the structure of precast concrete board wall local stability.
Embodiment 5, referring to Fig. 1,5, a kind of construction method and special-purpose member thereof that improves precast concrete board wall local strength that the present embodiment provides, basic identical with embodiment 1,2,3,4, its difference is, comprises the steps:
(1) preparation Special net shape member 1, the thickness of this Special net shape member 1 is 4mm; Described Special net shape member 1, for being provided with the space network of multiple three-dimensional mesh, comprises that many intersect to form this cancellated edge strip 11 mutually, and each edge strip 11 is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib 12 being affixed on groove 2; Its position, limit be provided with turn over or under the edging 13 that turns over.
(2) local at precast concrete board wall or around surfaces of wall mill set out groove 2, the recessed concrete panel of this groove 2 surface 10mm.Described groove 2 is positioned at precast concrete board wall part or front around.Described part is the splicing position of two precast concrete board walls.Described groove 2 be located at the Special net shape member 1 on groove 2, across two precast concrete board walls that mutually splice, and described groove 2 is provided with many places with the Special net shape member 1 of being located on groove 2 along splicing seams, distance is each other between 200 to 500mm, and the lateral length at its every place is not less than 100mm.
(3) described Special net shape member 1 use nailing 4 is solid on described groove 2 bottom surfaces, carry out with cementing agent simultaneously inlaid solid, form nailing, cementing agent and Special net shape member 1 integrative-structure.
(4) fill described groove 2 with mortar, filled with mortar is entered in Special net shape member 1 mesh, the structure-reinforced layer of fixed rear formation nailing, cementing agent, mortar and Special net shape member mixing build-in, produce bond stress, Special net shape member 1 is bonded and fixed on groove 2 securely to the intensity of strengthening board wall part.
Formed by described method for improving the structure of precast concrete board wall local stability.
Implement the Special net shape member 1 of described method.
The present invention is not limited to above-mentioned embodiment, adopts or approximation method or device identical with the above embodiment of the present invention, and construction method, structure and the member of other raising precast concrete board wall local strengths that obtain, all within protection scope of the present invention.
Claims (12)
1. a construction method that improves precast concrete board wall local strength, is characterized in that, comprises the steps:
(1) preparation is provided with the Special net shape member of multiple three-dimensional mesh, and the thickness of this Special net shape member is h;
(2) local at precast concrete board wall or around surfaces of wall mill set out groove, the recessed concrete panel of this groove surface 1.2 is to 5h;
(3) described Special net shape member is solid in described groove floor with nailing, carry out with cementing agent simultaneously inlaid solid, form nailing, cementing agent and Special net shape member integrative-structure;
(4) fill described groove with mortar, filled with mortar is entered in Special net shape member mesh, the structure-reinforced layer of fixed rear formation nailing, cementing agent, mortar and Special net shape member mixing build-in, the intensity of strengthening board wall part;
Wherein the value of h is 1 to 10mm.
2. the construction method of raising precast concrete board wall according to claim 1 local strength, it is characterized in that, step 1) described in Special net shape member be the space network that is provided with multiple three-dimensional mesh, comprise that many intersect to form this cancellated edge strip mutually, and each edge strip is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib being affixed in groove floor; Its position, limit be provided with turn over or under the edging that turns over.
3. the construction method of raising precast concrete board wall according to claim 1 local strength, is characterized in that step 2) described in part be the stress concentration portion position of precast concrete board wall, or the splicing position of two precast concrete board walls.
4. the construction method of raising precast concrete board wall according to claim 3 local strength, is characterized in that, described stress concentration portion position is hole-opening on precast concrete board wall, fluting, breach, or connects the position of upper primary structure member.
5. the construction method of raising precast concrete board wall according to claim 4 local strength, it is characterized in that, step 2) described in groove and the forming hole of precast concrete board wall intersect horizontally set, and the limit face that its both lateral sides is stretched out wallboard inside aperture, fluting or breach is not less than 80mm, the limit face 50 that wallboard inside aperture, fluting or breach are stretched out in vertical both sides is to 200mm.
6. the construction method of raising precast concrete board wall according to claim 4 local strength, is characterized in that, described perforate, fluting or gap portions are embedded with electricity box processed, supply and discharge water pipe, conduit, door hinge or door lock.
7. the construction method of raising precast concrete board wall according to claim 3 local strength, it is characterized in that, in the time that described part is the splicing position between precast concrete board wall and precast concrete board wall, described groove be located at the Special net shape member in groove floor, across two precast concrete board walls that mutually splice, and described groove is provided with many places with the Special net shape member of being located in groove floor along splicing seams, distance is each other between 200 to 500mm, and the lateral length at its every place is not less than 100mm.
8. the construction method of raising precast concrete board wall according to claim 1 local strength, is characterized in that step 2) described in groove be positioned at local or front, the back side or the side around of precast concrete board wall.
9. the construction method of raising precast concrete board wall according to claim 1 local strength, is characterized in that step 3) in, first that Special net shape member is inlaid solid in described groove floor with cementing agent, more solid with nailing nail; Or, first Special net shape member is solid in described groove floor with nailing, then carries out inlaid solid with cementing agent; Form nailing, cementing agent and Special net shape member integrative-structure.
10. according to the construction method of the raising precast concrete board wall local strength described in claim 1 or 9, it is characterized in that, described nailing is worn anchor to described groove floor by described Special net shape member, described cementing agent forms tack coat between described reticular component and described groove floor, and part cementing agent is embedded in the mesh of described Special net shape member, make nailing, cementing agent and Special net shape member form integrative-structure.
11. 1 kinds implement the claims the Special net shape member of one of 1 to 10 described method, it is characterized in that, it is the space network that is provided with multiple three-dimensional mesh, comprises that many intersect to form this cancellated edge strip mutually, and each edge strip is the three-dimensional kink of wave shape; Its middle part or sidepiece are provided with for nailing and pass, follow closely the rib being affixed in groove floor; Its position, limit be provided with turn over or under the edging that turns over.
12. Special net shape members according to claim 11, is characterized in that, it is metal net shaped member or fibrous web-like member.
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| CN201410139129.0A CN103899096B (en) | 2014-04-08 | 2014-04-08 | Improve construction method and the special-purpose member of precast concrete board wall local strength |
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| CN201410139129.0A CN103899096B (en) | 2014-04-08 | 2014-04-08 | Improve construction method and the special-purpose member of precast concrete board wall local strength |
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| CN103899096B CN103899096B (en) | 2016-09-14 |
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| CN106907013A (en) * | 2017-01-16 | 2017-06-30 | 重庆大学 | A kind of armored concrete and its construction method for repairing building breakage |
| CN107762008A (en) * | 2017-09-30 | 2018-03-06 | 东莞市彩丽建筑维护技术有限公司 | A method for dry-bonding a partition wall |
| CN108193802A (en) * | 2017-12-15 | 2018-06-22 | 东莞市彩丽建筑维护技术有限公司 | A method for constructing top support on dry-bonded prefabricated panel wall |
| CN109296170A (en) * | 2018-10-12 | 2019-02-01 | 东莞市彩丽建筑维护技术有限公司 | Method for hanging flue PC component |
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| CN109296170B (en) * | 2018-10-12 | 2020-11-06 | 东莞市彩丽建筑维护技术有限公司 | A method of hanging PC components of flue |
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|---|---|
| CN103899096B (en) | 2016-09-14 |
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