CN103924792A - Method of replacing mortar in mortar joint for masonry structure reinforcement - Google Patents
Method of replacing mortar in mortar joint for masonry structure reinforcement Download PDFInfo
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- CN103924792A CN103924792A CN201410190613.6A CN201410190613A CN103924792A CN 103924792 A CN103924792 A CN 103924792A CN 201410190613 A CN201410190613 A CN 201410190613A CN 103924792 A CN103924792 A CN 103924792A
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Abstract
The invention relates to a method of replacing mortar in a mortar joint for masonry structure reinforcement and belongs to the technical field of seismic hardening of houses. The method relates to an original masonry structure wall, the original low-grade mortar in the original mortar joint and newly backfilled high-grade mortar. The method is a method for replacing mortar in pass-length type mortar joints in the two sides of the wall and comprises the steps of tunneling through the two ends, in the transverse thickness direction of the wall, of the original mortar joint horizontally in the longitudinal direction of the original masonry structure wall, removing the original low-grade mortar, backfilling the high-grade mortar to improve the compression resistance and shearing resistance of a masonry structure, and reserving the middle part, in the transverse thickness direction of the wall, of the original low-grade mortar. According to the method, the compression resistance and shearing resistance of the masonry structure are improved by replacing the low-grade mortar in the wall with the high-grade mortar, the safety of the houses is guaranteed, construction cost is low, and original space is not occupied after wall reinforcement. The method can be widely applied to house reinforcement.
Description
Technical field
The present invention relates to a kind of masonry structure and reinforce mortar joint mortar replacement method, belong to earthquake-resistant building reinforcing technique field.
Background technology
Along with development, the raising of the level of the productive forces and the progress of science and technology of human society, design of building structures standard improves constantly, and people also more and more pay attention to the safety of house.In the face of the masonry structure buildings that exist in a large number now, more reinforcement means arises at the historic moment, and in the face of the Positive and Negative Aspects of various reinforcement means, selects a kind of rationally effective, reinforcement means that economy is higher to become most resident's basic demand.The present invention is based on formula (7.2.7-2) content in " seismic design provision in building code " and think that the size of mortar strength in masonry structure mortar joint can play very large effect in the resistance to compression of whole masonry and shearing resistance, and configuration level reinforcing bar improves not quite the intensity of masonry structure, and adopt steel reinforcing method cost higher.Therefore, rationally reinforcement means is particularly important easily in selection, and the reinforcing expense that can save like this peasant can provide again reinforcement means safely and effectively, increases the application life in house.Can predict, along with the raising of people to self dwelling environment security requirement and the requirement to economy, if this technology is promoted, aspect Strengthened Masonry Walls house, will there is significant economic benefit.
Summary of the invention
The present invention can not reach code requirement and adopt the problem that other reinforcement means expenses are higher in order to solve existing masonry structure building anti-seismic performance, propose a kind of masonry structure and reinforced mortar joint mortar replacement method, it adopts the mortar that in masonry mortar joint, label is lower is replaced to the mortar compared with high grade, object is to improve resistance to compression and the shear resistance of part mortar, and the resistance to compression of whole masonry and shear resistance are effectively improved.
Technical scheme of the present invention is as follows:
A kind of masonry structure is reinforced mortar joint mortar replacement method, comprise former Masonry Wall, also comprise the high grade mortar of former low grade mortar in former mortar joint and new backfill, the method that described mortar joint mortar replacement method adopts body of wall both sides long through type mortar joint mortar to replace, wall thickness transverse direction two end portions by former mortar joint is made an opening through along former Masonry Wall vertical equity, remove former low grade mortar, and backfill high grade mortar, in order to improve masonry structure resistance to compression and shear resistance, and the former low grade mortar reservation of wall thickness transverse direction mid portion is motionless, concrete steps are:
Step 1: the floated coat of former Masonry Wall both sides is rejected, expose structural plane;
Step 2: determine that according to drawing requirement former Masonry Wall need to replace the position of mortar joint mortar, and the vertical equity groove size that needs vertical equity to make an opening through;
Step 3: adopt the former mortar joint in the forced wall thickness transverse direction of chisel two ends, and form the vertical equity groove that vertical equity is made an opening through, wherein, the diameter of described chisel is not more than the thickness of former mortar joint;
Step 4: after former mortar joint vertical equity reamer is good, with the surface of former mortar joint handing-over, vertical equity groove inner surface should be sprayed water and be drenched, to guarantee between former low grade mortar and high grade mortar and the caking ability on high grade mortar and walling unit surface;
Step 5: insert high grade mortar in the vertical equity groove after water spray drenches, high grade mortar is inserted from body of wall both sides of edges to centre and progressively extruding, makes high grade mortar reach closely knit degree;
Step 6: the body both sides surface layer mortar of plastering a wall again after high grade mortar reaches some strength.
Wherein, described vertical equity groove is provided with many along body of wall short transverse.
Described masonry structure is reinforced mortar joint mortar replacement method, and described walling unit is solid brick.Further, described former low grade strength classes of mortar is M2.5 or M5.0, and described high grade strength classes of mortar is M7.5, M10 or M15.
Or described masonry structure is reinforced mortar joint mortar replacement method, described walling unit is building-block.Further, described former low grade strength classes of mortar is Mb2.5 or Mb5.0, and described high grade strength classes of mortar is Mb7.5, Mb10 or Mb15.
The former low grade mortar lateral length that described in both sides, vertical equity groove leaves with former mortar joint mid portion along the degree of depth equates.
Beneficial effect:
Advantage of the present invention is to adopt high grade mortar to replace former low grade mortar to improve masonry structure intensity, and its constructing operation is simple, and construction cost is lower, and indoorly after wall reinforcement still keeps original usable floor area, does not take original interior space.Thereby utilize the raising of mortar strength effectively to improve the intensity of masonry structure, make it meet shockproof requirements.
Owing to utilizing, mortar joint mortar replacement technology reinforcing masonry structure housing construction is simple, cost is lower, has greatly improved the intensity of masonry structure building simultaneously, has ensured the safety in utilization in house, reduce personnel and property loss that disaster causes, increased the application life in house.Can predict, along with the raising of people to self dwelling environment security requirement and the requirement to economy, if this technology is promoted, aspect Strengthened Masonry Walls house, will have significant economic benefit.
Brief description of the drawings
Fig. 1 is that masonry structure mortar joint mortar of the present invention is replaced elevation;
Fig. 2 is the A-A sectional drawing of Fig. 1.
In figure, 1: former Masonry Wall; 2: former low grade mortar; 3: high grade mortar.
Detailed description of the invention
As shown in Figure 1-2, masonry structure of the present invention is reinforced mortar joint mortar replacement method, and detailed description of the invention is as follows:
Embodiment 1
A kind of masonry structure is reinforced mortar joint mortar replacement method, comprise former Masonry Wall 1, also comprise the high grade mortar 3 of former low grade mortar in former mortar joint 2 and new backfill, the method that described mortar joint mortar replacement method adopts body of wall both sides long through type mortar joint mortar to replace, wall thickness transverse direction two end portions by former mortar joint is made an opening through along former Masonry Wall 1 vertical equity, remove former low grade mortar 2, and backfill high grade mortar 3, in order to improve masonry structure resistance to compression and shear resistance, and the former low grade mortar 2 of wall thickness transverse direction mid portion retains motionless.Wherein, walling unit is solid brick, and former low grade mortar 2 strength grades are M2.5 or M5.0, and high grade mortar 3 strength grades are M7.5, M10 or M15.Concrete steps are:
Step 1: the floated coat of former Masonry Wall 1 both sides is rejected, expose structural plane;
Step 2: determine that according to drawing requirement former Masonry Wall 1 need to replace the position of mortar joint mortar, and the vertical equity groove size that needs vertical equity to make an opening through.Wherein, described vertical equity groove size should determine as calculated according to body of wall 1 pressurized and the situation of being cut, and every mortar joint or parting bead mortar joint backfill high grade mortar 3 should be by calculative determinations.
Step 3: adopt the former mortar joint in the forced wall thickness transverse direction of chisel two ends, and form the vertical equity groove that vertical equity is made an opening through, wherein, the diameter of described chisel is not more than the thickness of former mortar joint;
Step 4: after former mortar joint vertical equity reamer is good, with the surface of former mortar joint handing-over, vertical equity groove inner surface should be sprayed water and be drenched, to guarantee between former low grade mortar 2 and high grade mortar 3 and the caking ability on high grade mortar 3 and walling unit surface;
Step 5: insert high grade mortar 3 in the vertical equity groove after water spray drenches, high grade mortar 3 is inserted from body of wall both sides of edges to centre and progressively extruding, makes high grade mortar 3 reach closely knit degree;
Step 6: the body both sides surface layer mortar of plastering a wall again after high grade mortar 3 reaches some strength.
Wherein, former low grade mortar 2 lateral lengths that described in both sides, vertical equity groove leaves with former mortar joint mid portion along the degree of depth equate.
Embodiment 2
Walling unit in the present embodiment is building-block, and its former low grade mortar 2 strength grades are Mb2.5 or Mb5.0, and high grade mortar 3 strength grades are Mb7.5, Mb10 or Mb15.Other structure and method, with embodiment 1, no longer describe in detail herein.
Be more than two kinds of embodiments of the present invention, enforcement of the present invention is not limited to this.
Claims (7)
1. a masonry structure is reinforced mortar joint mortar replacement method, comprise former Masonry Wall (1), also comprise the high grade mortar (3) of former low grade mortar (2) in former mortar joint and new backfill, it is characterized in that: the method that described mortar joint mortar replacement method adopts body of wall both sides long through type mortar joint mortar to replace, wall thickness transverse direction two end portions by former mortar joint is made an opening through along former Masonry Wall (1) vertical equity, remove former low grade mortar (2), and backfill high grade mortar (3), in order to improve masonry structure resistance to compression and shear resistance, and the former low grade mortar (2) of wall thickness transverse direction mid portion retains motionless, concrete steps are:
Step 1: the floated coat of former Masonry Wall (1) both sides is rejected, expose structural plane;
Step 2: determine that according to drawing requirement former Masonry Wall (1) need to replace the position of mortar joint mortar, and the vertical equity groove size that needs vertical equity to make an opening through;
Step 3: adopt the former mortar joint in the forced wall thickness transverse direction of chisel two ends, and form the vertical equity groove that vertical equity is made an opening through, wherein, the diameter of described chisel is not more than the thickness of former mortar joint;
Step 4: after former mortar joint vertical equity reamer is good, surface with former mortar joint handing-over, be that vertical equity groove inner surface should be sprayed water and drenched, to guarantee between former low grade mortar (2) and high grade mortar (3) and the caking ability on high grade mortar (3) and walling unit surface;
Step 5: insert high grade mortar (3) in the vertical equity groove after water spray drenches, high grade mortar (3) is inserted from body of wall both sides of edges to centre and progressively extruding, makes high grade mortar (3) reach closely knit degree;
Step 6: the body both sides surface layer mortar of plastering a wall again after high grade mortar (3) reaches some strength.
2. masonry structure according to claim 1 is reinforced mortar joint mortar replacement method, it is characterized in that: described vertical equity groove is provided with many along body of wall short transverse.
3. masonry structure according to claim 1 is reinforced mortar joint mortar replacement method, it is characterized in that: described walling unit is solid brick.
4. masonry structure according to claim 3 is reinforced mortar joint mortar replacement method, it is characterized in that: described former low grade mortar (2) strength grade is M2.5 or M5.0, described high grade mortar (3) strength grade is M7.5, M10 or M15.
5. masonry structure according to claim 1 is reinforced mortar joint mortar replacement method, it is characterized in that: described walling unit is building-block.
6. masonry structure according to claim 5 is reinforced mortar joint mortar replacement method, it is characterized in that: described former low grade mortar (2) strength grade is Mb2.5 or Mb5.0, described high grade mortar (3) strength grade is Mb7.5, Mb10 or Mb15.
7. masonry structure according to claim 1 is reinforced mortar joint mortar replacement method, it is characterized in that: former low grade mortar (2) lateral length that described in both sides, vertical equity groove leaves with former mortar joint mid portion along the degree of depth equates.
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| CN201410190613.6A CN103924792B (en) | 2014-05-06 | 2014-05-06 | A kind of masonry bearing capacity mortar joint mortar replacement method |
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| CN201410190613.6A CN103924792B (en) | 2014-05-06 | 2014-05-06 | A kind of masonry bearing capacity mortar joint mortar replacement method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105421811A (en) * | 2015-12-17 | 2016-03-23 | 北京筑福建筑事务有限责任公司 | Quincuncial mortar joint mortar reinforced masonry structure and construction method thereof |
| CN107386491A (en) * | 2017-07-21 | 2017-11-24 | 天津城建大学 | Shear connections structure, masonry wall and construction method for hollowed-block masonry |
| CN108999425A (en) * | 2018-09-28 | 2018-12-14 | 西安建筑科技大学 | A kind of infiltration slurry reinforcement means for ancient building masonry structure |
| CN109610873A (en) * | 2019-01-18 | 2019-04-12 | 央固工程科技（上海）有限公司 | A kind of reinforcing of plain brick wall and Saussurea DC integral structure |
| CN109763669A (en) * | 2019-01-29 | 2019-05-17 | 天津城建大学 | Agriculture occupies the bilateral transverse direction jointing reinforcement Shockproof reinforcing method of masonry building |
| CN111792892A (en) * | 2020-06-27 | 2020-10-20 | 同济大学 | Method for building or reinforcing masonry wall by using UHMWPE cement-based mortar |
| CN112096113A (en) * | 2020-09-11 | 2020-12-18 | 西安建筑科技大学 | High-ductility concrete caulking reinforced ancient building masonry wall and reinforcing construction process thereof |
| CN116084726A (en) * | 2022-10-14 | 2023-05-09 | 杭州明磊建筑工程技术有限公司 | Brick wall mortar joint reinforcing method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105421811A (en) * | 2015-12-17 | 2016-03-23 | 北京筑福建筑事务有限责任公司 | Quincuncial mortar joint mortar reinforced masonry structure and construction method thereof |
| CN107386491A (en) * | 2017-07-21 | 2017-11-24 | 天津城建大学 | Shear connections structure, masonry wall and construction method for hollowed-block masonry |
| CN107386491B (en) * | 2017-07-21 | 2024-03-22 | 天津城建大学 | Shear connection structure for hollow block masonry, masonry wall and construction method |
| CN108999425A (en) * | 2018-09-28 | 2018-12-14 | 西安建筑科技大学 | A kind of infiltration slurry reinforcement means for ancient building masonry structure |
| CN109610873A (en) * | 2019-01-18 | 2019-04-12 | 央固工程科技（上海）有限公司 | A kind of reinforcing of plain brick wall and Saussurea DC integral structure |
| CN109763669A (en) * | 2019-01-29 | 2019-05-17 | 天津城建大学 | Agriculture occupies the bilateral transverse direction jointing reinforcement Shockproof reinforcing method of masonry building |
| CN111792892A (en) * | 2020-06-27 | 2020-10-20 | 同济大学 | Method for building or reinforcing masonry wall by using UHMWPE cement-based mortar |
| CN112096113A (en) * | 2020-09-11 | 2020-12-18 | 西安建筑科技大学 | High-ductility concrete caulking reinforced ancient building masonry wall and reinforcing construction process thereof |
| CN116084726A (en) * | 2022-10-14 | 2023-05-09 | 杭州明磊建筑工程技术有限公司 | Brick wall mortar joint reinforcing method |
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Address after: 335000 B22-2, No. 7, Tianjie West Road, Yingtan high tech Industrial Development Zone, Jiangxi Patentee after: CIIC Construction Group Co., Ltd Address before: 335000 B22-2, No. 7, Tianjie West Road, Yingtan high tech Industrial Development Zone, Jiangxi Patentee before: Jiangxi Pei Xing Construction Engineering Co., Ltd. |