CN103967163B - End, wall limit concave waves masonry wall - Google Patents
End, wall limit concave waves masonry wall Download PDFInfo
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- CN103967163B CN103967163B CN201410124936.5A CN201410124936A CN103967163B CN 103967163 B CN103967163 B CN 103967163B CN 201410124936 A CN201410124936 A CN 201410124936A CN 103967163 B CN103967163 B CN 103967163B
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Abstract
The present invention is that end, a kind of wall limit concave waves masonry wall, solves masonry wall causes anti-seismic performance and shake under earthquake in sloping section shear failure form after and fits the problem of repairing poor performance.Masonry is positioned at the upper limb at arbitrary hole or lower edge absolute altitude place without the Qiang Duan left and right sides, hole and is provided with to masonry without the recessed indent hole of hole wall intersegmental part, the internally recessed horizontal dimension in indent hole is less than or equal to masonry without 1/3rd of the Qiang Duan left and right sides, hole back gauge, filling flexible thing in indent hole.Working mechanism of the present invention is novel, effectively can prevent the shear failure of masonry wall, realize normal section bending crack form; Can improve ductility and the energy dissipation capacity of masonry wall, suitable repairing property after greatly strengthening shake, repairs difficulty after alleviating the earthquake resistant engineering disaster relief and shake; Its easy construction, cost amplitude of variation is small, is applicable to the provide fortification against earthquakes masonry structure building construction in district, strengthening reconstruction and post earthquake recovery of general masonry project facility, particularly highlight lines and rebuilds.
Description
Technical field
The present invention relates to engineering structures Seismic Resistance And Disaster Reduction field, particularly relate to the masonry seismic structural wall, earthquake resistant wall in masonry structure, be specially end, a kind of wall limit concave and wave masonry wall.
Background technology
Solid wall section on block wall between adjacent hole, left and right is that masonry is without hole wall section, its lateral-resisting bearing capacity is low, ratio of shear span to effective depth of section under geological process is little, its seismic damage form is generally the sloping section shear failure of fragility, masonry wall is often caused to block by the waist, be difficult to repair, need reconstruction be removed, bring huge difficulty to earthquake relief work and post earthquake recovery.For example, the wall between windows section of masonry structure is under horizontal earthquake action, general in X-shaped cross-shear crack, causes building collapsing time serious.
In order to alleviate the shear failure of masonry without hole wall section to a certain extent, at present many by strengthen in masonry structure masonry without the sectional dimension of hole wall section or in the horizontal mortar joint of masonry wall configuration reinforcement, suitably to increase the lateral-resisting bearing capacity of masonry without hole wall section, reduce shear displacemant or shear crack width.Above-mentioned existing methods and measures, major drawbacks and the problem of existence have:
One, adopt increasing masonry without the method for hole wall section sectional dimension, such as, increase thickness of section or the cross-sectional length of body of wall, be often subject to the restriction of the block-type size, building using function etc. of building block by laying bricks or stones;
Two, the measure of configuration reinforcement in horizontal mortar joint is adopted, although masonry can be improved without the shear resistance capacity of hole wall section or shearing resistance ductility, but the diameter of horizontal mortar joint reinforcing bar is subject to the restriction of gray seam thickness, bar diameter is generally less than normal, reinforcement ratio is low, and thus horizontal mortar joint arrangement of reinforcement is little to the raising effect of masonry wall section shear-carrying capacity, and the adhesion strength of reinforcing bar and mortar joint mortar is low, Bar Anchorage poor performance, building construction difficulty also increases.
Three, said method measure, although increase the lateral-resisting bearing capacity of masonry without hole wall section to a certain extent by increasing material, but the superpower rate of lateral-resisting bearing capacity is very limited, the destruction of body of wall often remains shear failure, fundamentally do not change masonry without the shear failure form of hole wall section under macroseism, the fragility of body of wall shear failure is large, ductility is low, and strength deterioration is large, structural damage weight, easily produces structural collapse; Earthquake reciprocating down cut crack causes masonry wall can not close along sloping section entirety dislocation, and shear failure is blocked by the waist along body of wall total cross-section and is difficult to repair, and after shake, suitable repairing property extreme difference, need remove reconstruction, bring huge difficulty to earthquake relief work and post earthquake recovery.
The problems referred to above that existing technical measures exist, the significant problem that puzzlement Hollow Block Masonry Structure Anti-seismic is taken precautions against natural calamities for a long time always, prior art is difficult to overcome shear brittleness and destroys, and can not improve anti-seismic performance and rear suitable the repairing property of shake of masonry structure, all be unfavorable for that engineering structures high-efficient anti-vibration is taken precautions against natural calamities.
Summary of the invention
The present invention causes suitable problem of repairing poor performance after anti-seismic performance and shake to solve existing masonry wall under earthquake in sloping section shear failure form, provide and a kind ofly prevent sloping section shear failure, realize normal section bending crack form, good, the excellent earthquake resistance of suitable repairing property and end, the wall limit concave of convenient construction application waves masonry wall after shake.
The present invention adopts following technical scheme to realize: end, wall limit concave waves masonry wall, comprise the masonry of edge, the left and right sides without handing-over wall limb without hole wall section, adjacent masonry without the hole between the wall section of hole and the connector being positioned at hole upper and lower, masonry is positioned at the upper limb at arbitrary hole or lower edge absolute altitude place without the Qiang Duan left and right sides, hole and is provided with to masonry without the recessed indent hole of hole wall intersegmental part, the internally recessed horizontal dimension in indent hole is less than or equal to masonry without 1/3rd of the Qiang Duan left and right sides, hole back gauge, filling flexible thing in indent hole.
Described masonry is the solid wall section on block wall between adjacent left and right door window hole without hole wall section, it is a kind of masonry wall of the form that ftractures in normal section flexure type under geological process, under geological process, masonry is without the cross section of hole wall section at adjacent hole upper limb or lower edge absolute altitude place, in its plane, seismic bending moment action effect is maximum, in this sectional position, indent hole is set, its effect reduces the cross-sectional length of masonry without hole wall section, thus weaken masonry without the antidetonation bend-carrying capacity of hole wall section in this cross section, place, lateral-resisting bearing capacity is substantially constant simultaneously, reduce the antidetonation bend-carrying capacity superpower rate of masonry without hole wall section, realize masonry without hole wall section under geological process first at this section generation normal section bending crack, suppress simultaneously and avoid masonry to be cut brittle fracture without hole wall section, under normal section bending crack form, masonry improves greatly without the ductility of hole wall section, the degeneration of bearing capacity postpones, structural damage is light, effectively prevent structural collapse, and masonry wall only produces crack and damage in local, cross section under earthquake reciprocating, direct tension cracking can close well after shake, easy reparation or do not need repair, suitable repairing property is good, reconstruction is removed after can greatly reducing shake, reduce the difficulty of earthquake relief work.On the other hand, filling flexible thing in indent hole, masonry can be made to be curved in dynamic deformation process without the cross section, place, indent hole of hole wall section, can free rotational deformation, not by the obstruction of indent hole inner stuffing, avoid bending rotational deformation be subject to the constraint of filler and cause shear failure, and flexible thing can also play the effect of shutoff hole or heat preservation and soundproof.Thus the technology of the present invention overcomes existing masonry wall and adopts enlarging section size or the measure such as configuration reinforcement is difficult to stop the problem that shear brittleness destroys in horizontal mortar joint, improve suitable repairing property after the anti-seismic performance of masonry structure and shake.
The hole top that masonry is adjacent without Qiang Duan side, hole is provided with floor beam, the hole top that masonry is adjacent without hole wall section opposite side is provided with the hole lintel be positioned at below floor beam, and masonry is positioned at the absolute altitude place of hole lintel without the indent hole of the Qiang Duan left and right sides, hole.
Floor is provided with bottom the hole that masonry is adjacent without Qiang Duan side, hole, be provided with the windowsill wall be positioned at above floor bottom the hole that masonry is adjacent without hole wall section opposite side, masonry is positioned at windowsill coping absolute altitude place without the indent hole of the Qiang Duan left and right sides, hole.
When masonry is different without the elevation of top at the adjacent hole of Qiang Duan both sides, hole, indent hole is located at the lower section of absolute altitude; In like manner, when masonry is different without the elevation of bottom at the adjacent hole of Qiang Duan both sides, hole, indent hole is located at the higher section of absolute altitude, and its advantage is that the antidetonation bend-carrying capacity of above-mentioned section and over-strength factor thereof can significantly reduce, and ensures first normal section bending crack to occur.
Masonry is provided with vertical reinforcement concrete column without in the wall section of hole, and the left and right sides of reinforced concrete post and masonry are without the horizontal steel tie be provided with between the wall section of hole along highly distributing.
Reinforced concrete post can strengthen the globality of masonry without hole wall section, the more important thing is, after masonry produces the distortion of normal section bending crack without hole wall section under geological process, longitudinal reinforcement in reinforced concrete post participates in tension and produces yield deformation, significantly improve masonry to consume energy without the surrender of hole wall section normal section cracks form, increase the damping of masonry without hole wall section, further improve the anti-seismic performance of masonry structure, the antidetonation being extremely conducive to masonry structure building is anti-down.
The shape in indent hole is that wedge shape is opened wide to hole, and the upside of wedge shape or downside are stepped-style; The height in indent hole is less than or equal to the height that ten skins build block by laying bricks or stones, and flexible thing is foam block or construction sealant block.
When the elevational contours in indent hole is that wedge shape is opened wide to hole, the upside of wedge shape or downside are staged, choose or adduction by putting by skin outside step in every skin bit body building construction, can form hole easily, thus building construction is simple.Indent hole arranges certain altitude, the rotational deformation of masonry wall normal section can be made to give full play of, otherwise when indent Cavity Height is too small, in the later stage that section flexure rotates, the masonry up and down at indent hole place and filler can contact with each other extruding, and bending rotational deformation is hindered; In addition, flexible filler in indent hole be foam block or construction sealant block time, can when masonry wall building construction, using the foam block at indent hole place or construction sealant block as block, build by laying bricks or stones with the block of masonry wall simultaneously, so complete the construction without hole masonry wall, indent hole and inner flexible filler thereof simultaneously, substantially increase efficiency of construction.
The present invention has following beneficial effect:
The first, end, wall limit of the present invention concave waves the stressed working mechanism novelty of earthquake of masonry wall.Masonry is general less without the depth-width ratio of hole wall section, and under horizontal earthquake action, masonry is also little without the ratio of shear span to effective depth of section of hole wall section, makes masonry without hole wall section generation shear failure.Under horizontal earthquake action, masonry is substantially identical without each cross section seismic shear of hole wall section; But the cross section at lower edge absolute altitude place on hole, its seismic bending moment is maximum, on the cross section that these seismic bending moments are maximum, arrange behind the indent hole that masonry is internally recessed without the lateral edges of hole wall section, reduce the depth of section of masonry without hole wall section, thus reduce the antidetonation bend-carrying capacity of masonry without hole wall section, reduce the antidetonation bend-carrying capacity superpower rate of masonry without hole wall section, lateral-resisting bearing capacity is substantially constant simultaneously, make masonry first in the cross section at place, indent hole, normal section bending crack occur without hole wall section, avoid and cut brittle fracture.
Further, when masonry is different without the elevation of top at the adjacent hole of Qiang Duan both sides, hole, indent hole is located at the lower section of absolute altitude; When the elevation of bottom at adjacent hole is different, indent hole is located at the higher section of absolute altitude, because the bearing capacity in above-mentioned cross section is less, the action moment of earthquake is simultaneously larger, when indent hole is located at above-mentioned cross section, masonry can be made to effectively reduce without the superpower rate of antidetonation bend-carrying capacity of hole wall section, ensure normal section bending crack form, avoid shear failure.
Thus, the present invention is by offering indent hole at masonry without the seismic bending moment maximum cross-section place of hole wall section, normal section bending crack is occurred prior to Shear cracking, earthquake is stressed and working mechanism is novel, effectively control masonry without the damage-form of hole wall section under horizontal earthquake action, prevent shear brittleness to destroy.
The second, the present invention significantly increases masonry without the side-move distortion ability of hole wall section and structure, ductility and energy dissipation capacity, and excellent earthquake resistance, after shake, suitable repairing property is good simultaneously.Masonry produces seismic bending moment in face without hole wall section under horizontal earthquake action, when masonry loads without hole wall section forward horizontal force and increases gradually, according to the stressed working mechanism of above-mentioned earthquake in set indent hole, masonry is intact without destroying without hole wall section Shear, the normal section side pressurized at place, indent hole is without destruction, and opposite side tension produce normal section cracks, because the stress of tension side is very little to the contribution of flexure ability, after body of wall flexure bearing capacity increases to limiting value gradually, still basic maintenance is constant does not degenerate, displacement Ductility and side-move distortion ability very remarkable, and when masonry continues to increase without the horizontal comparison distortion of hole wall section forward, the pressurized side of normal section produces and crushes and plasticity compressive deformation under action of compressive stress, and flexure bearing capacity just starts generation degeneration.
If when being provided with reinforced concrete post in the middle part of the cross section of masonry without hole wall section, along with the increase of seismic bending moment or side-move distortion, the tension horizontal fracture of normal section is to the development of middle part constructional column, and constructional column is indulged influential point of tendons and produced tension surrender, produce plasticity damping, dissipate seismic energy effectively.
When masonry without hole wall section under acting in opposition, tensile region and pressure zone exchange, and namely former tensile region becomes pressure zone, thus the closing up of cracks of former tension side; Former pressure zone becomes tensile region, and occurs crack in tension along with geological process increases.
Thus, in horizontal earthquake reciprocating process, masonry also back and forth bears tension and compression without the normal section both sides at place, wall section indent hole, hole, and masonry produces reciprocating swing without hole wall section, and vertical load is born by the part in compression in cross section, can bear vertical load safely.Like this, on the one hand, masonry without hole wall section along with side-move distortion increases, after flexure bearing capacity reaches the limit values, still basic maintenance is constant does not degenerate, displacement Ductility and side-move distortion ability are very remarkable, if when being provided with reinforced concrete post in the middle part of wall section, masonry has again good damping energy dissipation without hole wall section.On the other hand, the direct tension cracking of normal section reciprocally closes, and pressure zone only appears at the edge regional area in cross section residing for indent hole, also easily replaces repairing when pressure zone occurs that local crushes, and suitable repairing property is improved greatly.
Pseudo-static experimental also shows, masonry is without hole wall section when producing very large lateral displacement angle, and body of wall still stably can bear vertical load, and lateral resistant ability is degenerated slowly, and suitable repairing property is fine, and when being provided with reinforced concrete post, damping energy dissipation performance is also excellent.
Three, end, wall limit of the present invention concave waves masonry wall, and its design is easy, and easy construction, construction costs amplitude of variation is small.The present invention is by arranging indent hole dexterously, and reduce masonry without the depth of section of hole wall section upper and lower side, realize by the transformation of shear failure to normal section bending crack form, its design concept is clear and definite, and method is easy.
Masonry is without hole wall section when building construction, and the block near indent hole is chosen or adduction by putting by skin outside step, and can form edge is easily stepped wedge shape indent hole, and building construction is simple.In indent hole fill flexible thing be foam block or construction sealant block time, can tamp by layering bond, like this, can at masonry without in the wall section building construction of hole, using the foam block at indent hole place or construction sealant block as block, build by laying bricks or stones with the block of masonry wall simultaneously, complete the construction of indent hole and inner flexible filler thereof simultaneously, substantially increase efficiency of construction, construction technology is easy, and construction quality easily ensures.
In addition, masonry is without the indent hole of hole wall section, it is built by laying bricks or stones does not increase construction workload, the normal flexible fillers such as the foam block of filling in indent hole or construction sealant block, price is low, and consumption is few, does not substantially increase construction cost and duration, thus construction costs fluctuating range is small, is extremely conducive to application and the earthquake defence of masonry project facility.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
In figure: 1-masonry without hole wall section, 2-indent hole, 3-hole, 4-hole lintel, 5-reinforced concrete post, the horizontal steel tie of 6-, 7-floor beam, 8-floor, 9-windowsill wall.
Detailed description of the invention
End, wall limit concave waves masonry wall, comprise the masonry of edge, the left and right sides without handing-over wall limb without hole wall section 1, adjacent masonry without the hole 3 between hole wall section 1 and the connector being positioned at hole 3 upper and lower, masonry is positioned at the upper limb at arbitrary hole 3 or lower edge absolute altitude place without wall section 1 left and right sides, hole and is provided with to masonry without the inner recessed indent hole 2 of hole wall section 1, the internally recessed horizontal dimension in indent hole 2 is less than or equal to masonry without 1/3rd of wall section 1 left and right sides, hole back gauge, filling flexible thing in indent hole 2.
The top, hole 3 that masonry is adjacent without wall section 1 side, hole is provided with floor beam 7, the top, hole 3 that masonry is adjacent without hole wall section 1 opposite side is provided with the hole lintel 4 be positioned at below floor beam 7, and masonry is positioned at the absolute altitude place of hole lintel 4 without the indent hole 2 of wall section 1 left and right sides, hole.
Floor 8 is provided with bottom the hole 3 that masonry is adjacent without wall section 1 side, hole, be provided with the windowsill wall 9 be positioned at above floor 8 bottom the hole 3 that masonry is adjacent without hole wall section 1 opposite side, masonry is positioned at the elevation of top place of windowsill wall 9 without the indent hole 2 of wall section 1 left and right sides, hole.
Masonry is provided with vertical reinforcement concrete column 5 without in hole wall section 1, and the left and right sides of reinforced concrete post 5 and masonry are without the horizontal steel tie 6 be provided with between hole wall section 1 along highly distributing.
The shape in indent hole 2 is that wedge shape is opened wide to hole 3, and the upside of wedge shape or downside are staged, and the height in indent hole 2 is less than or equal to the height that ten skins build block by laying bricks or stones, and flexible thing is foam block or construction sealant block.
Claims (6)
1. end, wall limit concave waves masonry wall, comprise the masonry of edge, the left and right sides without handing-over wall limb without hole wall section (1), adjacent masonry is without the hole (3) between hole wall section (1) and the connector being positioned at hole (3) upper and lower, it is characterized in that: masonry is positioned at the upper limb at arbitrary hole (3) or lower edge absolute altitude place without wall section (1) left and right sides, hole and is provided with to masonry without inner recessed indent hole (2), hole wall section (1), the internally recessed horizontal dimension in indent hole (2) is less than or equal to masonry without 1/3rd of wall section (1) left and right sides, hole back gauge, the interior filling flexible thing in indent hole (2).
2. end, wall limit according to claim 1 concave waves masonry wall, it is characterized in that: hole (3) top that masonry is adjacent without wall section (1) side, hole is provided with floor beam (7), masonry is provided with the hole lintel (4) being positioned at floor beam (7) below without hole (3) top that hole wall section (1) opposite side is adjacent, masonry is positioned at the absolute altitude place of hole lintel (4) without the indent hole (2) of wall section (1) left and right sides, hole.
3. end, wall limit according to claim 1 concave waves masonry wall, it is characterized in that: the bottom, hole (3) that masonry is adjacent without wall section (1) side, hole is provided with floor (8), the bottom, hole (3) that masonry is adjacent without hole wall section (1) opposite side is provided with the windowsill wall (9) being positioned at floor (8) top, and masonry is positioned at the elevation of top place of windowsill wall (9) without the indent hole (2) of wall section (1) left and right sides, hole.
4. end, the wall limit concave according to claim 1,2 or 3 waves masonry wall, it is characterized in that: masonry is provided with vertical reinforcement concrete column (5) without in hole wall section (1), the left and right sides of reinforced concrete post (5) and masonry are without the horizontal steel tie (6) be provided with between hole wall section (1) along highly distributing.
5. end, the wall limit concave according to claim 1,2 or 3 waves masonry wall, it is characterized in that: the shape of indent hole (2) is that wedge shape is opened wide to hole (3), the upside of wedge shape or downside are staged, the height in indent hole (2) is less than or equal to the height that ten skins build block by laying bricks or stones, and flexible thing is foam block or construction sealant block.
6. end, wall limit according to claim 4 concave waves masonry wall, it is characterized in that: the shape of indent hole (2) is that wedge shape is opened wide to hole (3), and the upside of wedge shape or downside are staged, the height in indent hole (2) is less than or equal to the height that ten skins build block by laying bricks or stones, and flexible thing is foam block or construction sealant block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124936.5A CN103967163B (en) | 2014-03-31 | 2014-03-31 | End, wall limit concave waves masonry wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410124936.5A CN103967163B (en) | 2014-03-31 | 2014-03-31 | End, wall limit concave waves masonry wall |
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| Publication Number | Publication Date |
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| CN103967163A CN103967163A (en) | 2014-08-06 |
| CN103967163B true CN103967163B (en) | 2016-04-27 |
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| CN201410124936.5A Expired - Fee Related CN103967163B (en) | 2014-03-31 | 2014-03-31 | End, wall limit concave waves masonry wall |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104763081B (en) * | 2015-03-31 | 2017-09-15 | 四川电力设计咨询有限责任公司 | The flexible connecting structure of masonry filler wall and concrete structure |
| CN105421775B (en) * | 2015-11-06 | 2017-11-10 | 北京崇建工程有限公司 | A kind of lintel construction method of brick mix structure |
Citations (5)
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|---|---|---|---|---|
| CN101358466A (en) * | 2008-08-27 | 2009-02-04 | 太原理工大学 | Free shear failure type antivibration and anti-falling lining building and build process thereof |
| CN201671386U (en) * | 2010-05-21 | 2010-12-15 | 重庆大学 | Binding rubber bundle capable of energy dissipation and shock absorption of building |
| CN101936083A (en) * | 2010-08-31 | 2011-01-05 | 太原理工大学 | Shearless connected junction masonry load bearing wall and construction method thereof |
| CN103362234A (en) * | 2012-04-06 | 2013-10-23 | *** | Construction method of filler wall |
| CN103469939A (en) * | 2013-09-24 | 2013-12-25 | 中国建筑第二工程局有限公司 | Masonry infilled wall and main body flexible connection anti-seismic structure and construction method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101293734B1 (en) * | 2011-04-06 | 2013-08-07 | 대한민국 | Aseismatic reinforcing structure for masonry construction and constructing method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358466A (en) * | 2008-08-27 | 2009-02-04 | 太原理工大学 | Free shear failure type antivibration and anti-falling lining building and build process thereof |
| CN201671386U (en) * | 2010-05-21 | 2010-12-15 | 重庆大学 | Binding rubber bundle capable of energy dissipation and shock absorption of building |
| CN101936083A (en) * | 2010-08-31 | 2011-01-05 | 太原理工大学 | Shearless connected junction masonry load bearing wall and construction method thereof |
| CN103362234A (en) * | 2012-04-06 | 2013-10-23 | *** | Construction method of filler wall |
| CN103469939A (en) * | 2013-09-24 | 2013-12-25 | 中国建筑第二工程局有限公司 | Masonry infilled wall and main body flexible connection anti-seismic structure and construction method thereof |
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