JP2015134982A - Architectural structure reinforcement method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an architectural structure reinforcement method which can integrally reinforce an earthquake-resisting wall and a foundation part of an existing wooden building.SOLUTION: An architectural structure reinforcement method in this invention is to integrally reinforce a wall and a foundation of a building, comprising: a process to cut specific areas out of a wall surface at its four corners; a process to fix mounting plywood boards 6a and 6d at the four corners; a process to arrange unevenness-adjustment members 12a and 12b on a fiber sheet 11 pasted on a foundation 10; a process to paste at least two fiber sheets 7a and 7b in diagonally crossing positions with the mounting plywood boards and the unevenness-adjustment members as the base for pasting; a process to fix the fiber sheets by inserting fiber anchors 8 into holes drilled in the mounting plywood boards of the wall and holes drilled in the foundation; and a process to paste cover sheets on the fiber anchors.

Description

  The present invention relates to a method for reinforcing a building for integrally and simultaneously reinforcing a mortar wall and a foundation portion of a wooden building, for example.

  Today, to achieve the goal of the Ministry of Land, Infrastructure, Transport and Tourism that will raise the rate of earthquake resistance of houses and buildings used by many people by 90% by 2015, it is necessary to further promote earthquake resistance. Therefore, regulations for promoting earthquake resistance of buildings have been strengthened, and measures for smooth promotion of earthquake resistance have been taken.

  Traditionally, old wooden houses have been coated with lath mortar on the outer walls, and the foundations are often unreinforced concrete foundations or cracked reinforced concrete foundations, which require seismic reinforcement. There was no commercially available seismic reinforcement method that met the needs of the company. On the other hand, it is said that the seismic wall functions only when there is an effective foundation, and the foundation reinforcement is not effective unless the foundation is adapted to the seismic wall.

  Here, for example, Patent Document 1 discloses a method for reinforcing a wooden mortar wall. That is, in the same method, in order to reinforce the mortar wall of an existing wooden building, the fiber sheet is pasted in the fiber sheet pasting process so that the fiber sheet extends in the length direction and overlaps at the center. The fiber anchor is embedded.

Japanese Patent No. 4162702

  However, the seismic reinforcement method disclosed in Patent Document 1 is a method limited to a seismic wall, and does not refer to a seismic reinforcement method that reinforces the wall and the foundation as a unit. Judgment of the method was left to the designer. However, it was difficult for designers to judge whether or not there was detailed suitability from the intention of development of the construction method, and the realization of a construction method in which the seismic wall and foundation reinforcement were integrated was desired.

  Therefore, in view of the technical problems described above, the present invention can integrally reinforce the earthquake-resistant wall and foundation portion of an existing wooden building, has fewer processes, requires a large-scale machine for construction, An object of the present invention is to provide a method for reinforcing a building, which does not require an apparatus, can be operated in a narrow space, and can improve the durability of the building by reinforcement.

  In order to solve the above technical problem, a method for reinforcing a building according to one aspect of the present invention is a method for reinforcing a building in which a wall surface and a foundation of a building are integrally reinforced. A wall surface cutting step for cutting the wall surface within a predetermined range, a fixing plywood mounting step for fixing a fixing plywood at the four corners from which the wall surface was cut, and a non-land adjustment member on the fiber sheet affixed to the foundation A non-land adjustment step for adjusting unevenness, and for each predetermined unit of the wall surface, at least two fiber sheets are diagonally attached to the wall surface with the fixing plywood and the uneven adjustment member as a foundation A fiber sheet affixing step that is pasted in the form of staking, and at both ends of the fiber sheet, a fiber anchor is inserted into the hole in the fixing plywood on the wall surface and the hole in the foundation; And fiber anchor embedding process of fixing the fiber sheet, on said fiber anchor is characterized by having a paste sticking Keru cover sheet cover sheet step.

  According to the method for reinforcing a building according to the present invention, it is possible to integrally reinforce the earthquake-resistant wall and the foundation portion of an existing wooden building, and there are few processes, and a large-scale machine or device for construction. It is possible to work in a narrow space, and the durability of the building can be improved by reinforcement.

It is a conceptual diagram explaining the reinforcement method of the building which concerns on one Embodiment of this invention. It is a figure for demonstrating in detail the process of embedding a fiber anchor among the processes of the reinforcement method of the building which concerns on one Embodiment of this invention. (A) And (b) is sectional drawing for demonstrating a mode that drilling is performed in the reinforcement method of the building which concerns on one Embodiment of this invention. (A) And (b) is a figure for demonstrating the standard basic specification reinforced with the reinforcement method of the building which concerns on one Embodiment of this invention. (A) thru | or (c) is a figure for demonstrating the reinforcement process by the fiber anchor of a base part. It is a figure which shows the process of the reinforcement method of the building which concerns on one Embodiment of this invention. It is a figure which shows the process of the reinforcement method of the building which concerns on one Embodiment of this invention. It is a figure which shows the process of the reinforcement method of the building which concerns on one Embodiment of this invention. It is a figure which shows the process of the reinforcement method of the building which concerns on one Embodiment of this invention. It is a figure which shows the process of the reinforcement method of the building which concerns on one Embodiment of this invention. It is a figure which shows the process of the reinforcement method of the building which concerns on one Embodiment of this invention. It is a figure which shows the process of the reinforcement method of the building which concerns on one Embodiment of this invention. It is a figure which shows a part of process at the time of applying the reinforcement method of the building which concerns on one Embodiment of this invention to a 2 span connection type | mold. It is a figure which shows the example of application to the 1st and 2nd floor connection type | mold of the reinforcement method of the building which concerns on one Embodiment of this invention. It is a figure which shows a part of reinforcement | strengthening process of the basic joining type | mold and a protruding corner of the building reinforcement method which concerns on one Embodiment of this invention. It is a block diagram of the earthquake-proof reinforcement wall (T2-1) which concerns on the Example of this invention. It is a block diagram of the earthquake-proof reinforcement wall (T2-2) which concerns on the Example of this invention. It is a figure which shows the outline | summary of the experimental method which concerns on the Example of this invention. It is a figure which shows the outline | summary of the evaluation method based on the Example of this invention. It is a figure which shows the load deformation relationship of the earthquake-proof reinforcement wall (T2-1) which concerns on the Example of this invention. It is a figure which shows the load deformation relationship of the earthquake-proof reinforcement wall (T2-2) which concerns on the Example of this invention. It is a figure which shows the load deformation relationship (load deformation history curve) of FIG. It is a figure which shows the load deformation relationship (envelope) of FIG.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments according to a building reinforcing method of the invention will be described with reference to the drawings. The method for reinforcing a building of the present invention is not limited to the following description, and can be appropriately changed without departing from the gist of the present invention.

  With reference to FIG. 1, the building reinforcement method which concerns on one Embodiment of this invention is demonstrated.

  As shown in FIG. 1, the building reinforcing method according to the present embodiment is a glass continuous fiber sheet 7a integrally formed of an open lath mortar wall 5, fixing plywood 6a to 6d, and a foundation 10. , 7b are pasted and reinforced in a manner of staking, and the reinforcing method of the building 1 is improved.

  That is, in the building 1 to be reinforced, the base 9 is formed on the foundation 10, and the pillar 4 extends from the base 9 to the beam 2. A plurality of woodwork bases 3 are arranged at equal intervals on the pillar 4, and a lath mortar wall 5 is formed on the woodwork base 3. However, the object to be reinforced is an example and is not limited to this.

  In this reinforcement method, two continuous glass fiber sheets 7a and 7b are attached in a manner of staking between the fixing plywoods 6a to 6d and the foundation 10 from the outside of the building 1, and bonded and bonded with an epoxy resin. At this time, the lath mortar wall 5 is provided with notches at the four corners of the existing wall for the purpose of joining the shaft assembly and the continuous glass fiber sheets 7a and 7b, and the unevenness due to the notch is adjusted by the fixing plywood 6a to 6d. The shaft assembly and the continuous glass fiber sheets 7 a and 7 b are joined by the fiber anchor 8.

  As described above, the present construction method is a reinforcing method in which the glass continuous fiber sheets 7a and 7b and the fiber anchor 8 are used in combination, and realizes simultaneous reinforcement of the lath mortar wall 5 and the foundation 10 simultaneously. . The continuous glass fiber sheets 7a and 7b are attached to the foundation 10 through the non-land adjustment flock mortars 12a and 12b.

  More specifically, the reinforcing method according to the present embodiment includes the following steps. That is, this reinforcing method has at least a wall surface cutting step, a fixing plywood attaching step, a non-landing adjustment step, a glass continuous fiber sheet attaching step, a fiber anchor embedding step, and a cover sheet attaching step. doing.

  In the wall surface cutting step, the lath mortar wall 5 at the junction between the four corner columns and the base or the column and beam is cut off. In the fixing plywood attaching step, the fixing plywoods 6a to 6d are fixed to the four corner portions from which the lath mortar wall 5 has been cut with ordinary screws. In the unevenness adjustment step, the unevenness adjustment mortar is arranged on the continuous glass sheet (two layers attached) attached to the foundation 10 to adjust the unevenness. In the continuous glass fiber sheet attaching step, the two continuous glass fiber sheets 7a and 7b are diagonally applied to the wall surface with the fixing plywoods 6a to 6d and the fukasi mortars 12a and 12b as the foundation. paste.

  Subsequently, in the fiber anchor embedding step, the fiber anchor 8 is inserted into the fixing plywood 6a and 6b and the drilling holes of the foundation 10 at both ends of the glass continuous fiber sheets 7a and 7b. 7b is fixed. At this time, it attaches so that the fiber anchor 8 may open radially along the sheet | seat surface of the glass continuous fiber sheets 7a and 7b at both ends, and the tip of an anchor fiber may be extended.

  Finally, in the cover sheet attaching step, a cover sheet (not shown) is attached on the fiber anchor 8 here. In this way, a series of reinforcement methods are completed.

  FIG. 2 shows and explains how a fiber anchor is embedded in the foundation. In this embodiment, the fiber anchors 8 are embedded at equal intervals in two rows so as to be parallel to the longitudinal direction at the lower end portion of the continuous glass fiber sheet 7a.

  In this embodiment, since the foundation 10 and the shaft part do not separate the force flow, the force flow is made constant by connecting the glass continuous fiber sheets 7a and 7b. If there is a step on the outer wall, it will not be possible to bond firmly, and it will be a burden to improve yield strength. In view of such a problem, the foundation portion is adjusted with the fake mortars 12a and 12b so that the foundation 10 portion and the lath mortar wall 5 are flush with each other, and the construction is performed so as not to cause a step.

  Here, with reference to FIG. 3, the drilling process for embedding the fiber anchor 8 will be described. FIG. 3A shows a horizontal member type, and FIG. 3B shows a basic type.

  As shown in FIG. 3 (a), in the horizontal member type, a hole whose finishing thickness + drilling depth is, for example, 50 mm is formed in the woodwork base 3 and the lath mortar wall 5 disposed in the beam 13. Drill holes. The hole diameter is φ12, for example, and a predetermined taper process is also applied to the corner.

  As shown in FIG. 3 (b), in the foundation mold, a glass continuous sheet 16 is attached to the foundation 10 under the base 9, but the foundation thickness is, for example, 60 mm when the foundation thickness is 120 mm or more. A degree of drilling depth is formed. The hole diameter may be φ12, for example. Mortar unevenness adjustment is made around the hole. Glass continuous fiber sheets 7a and 7b are attached to the upper surface, and fiber anchors 8 are buried in the drill holes from above.

  Next, FIGS. 4 (a) and 4 (b) show and explain standard basic specifications that are a part of objects to be reinforced by the reinforcing method according to the present embodiment. 4A is a perspective view of the foundation, and FIG. 4B is a partial sectional view of the foundation.

  Holes (for example, housing fixing length 60 mm, φ12) for installing the fiber anchor 15 for foundation at a level of 100 mm, for example, are drilled in a horizontal row at intervals of, for example, 500 mm from the upper end of the foundation of the rising surface subjected to the ground treatment. Clean inside. And the glass continuous fiber sheet 11a (1st layer) is affixed on the range of 300 mm in height from an upper end of a foundation with an epoxy resin, for example. A fiber anchor 15 (for example, 120 mm long, φ10) impregnated with epoxy resin in a hole drilled immediately after the first layer construction is embedded in the base frame through the first layer sheet and exposed to the outside. The tip of the fiber anchor 15 for use is spread radially and installed. Subsequently, the glass continuous fiber sheet 11b (2nd layer) is affixed with an epoxy resin similarly to the 1st layer. Thus, part of the foundation reinforcement is completed.

  Next, FIGS. 5A to 5C show and explain the reinforcement of the foundation portion. Here, with respect to the same type of configuration as in FIG. 1, only the characteristic parts will be described using the same reference numerals.

  As shown in FIG. 5 (a), when the bearing wall is in the middle, the foundation fiber anchor 15 is buried also in the formation region of the foundation undulations mortar 12a, 12b. . Each of the six fiber anchors 8 from the upper surface of the continuous glass fiber sheets 7a and 7b is buried in a drilled hole processed so as to avoid this.

  As shown in FIG. 5 (b), when the bearing wall is at the protruding corner, the fiber anchor 15 for the foundation is buried also in the formation region of the foundation mortars 12a and 12b for adjusting the unevenness of the foundation. . Each of the six fiber anchors 8 from the upper surface of the continuous glass fiber sheets 7a and 7b is buried in a drilled hole processed so as to avoid this.

  As shown in FIG. 5 (c), in the two-span connecting portion described later, one of the fiber anchors 8 is also used for the glass continuous fiber sheets 7a and 7b, and the glass continuous fiber sheet is composed of 11 fiber anchors 8 together. 7a and 7b are fixed to a wall surface or a foundation.

  Hereinafter, with reference to FIG. 6 thru | or FIG. 12, each process of the reinforcement method of the building which concerns on one Embodiment of this invention is demonstrated in detail.

  In the building reinforcing method according to this embodiment, it is necessary to fix the fiber anchor to the main structure (column, beam, foundation, foundation) in order to bind the continuous glass fiber sheet and the shaft assembly. Therefore, it is important to understand the position, dimensions, and status of the main structure. Therefore, the position of the main structural portion and the state of member deterioration and cracking are grasped from the opening opened for inspection.

  The ground treatment is an important process not only for facilitating the application of the continuous glass fiber sheet, but also for exhibiting the original performance of the continuous glass fiber sheet. In the base treatment, a fixing plywood is applied to the main structural joint portion where the glass continuous fiber sheet is attached.

  That is, prior to the construction of the fixing plywood, the outer wall surface finish to which the glass continuous fiber sheet is attached is peeled off, and the existing lath mortar wall is smoothed by a grinder with a dust collector. Protrusions are removed by adjusting the groundwork, steps are filled with fillers, caves, and fine cracks are transferred to the next process after repair material treatment and solidification curing.

  Next, the lath mortar wall at the place where the fixing plywood is to be constructed (in this example, 4 corners) is removed, and notches 21a to 21d are provided to confirm the location, dimensions, and status of the main structure (columns, beams, foundation). To do. At this time, if hardware is necessary, a part of the wood lumber is removed in the regions 22a to 22d (see FIG. 6). In addition, in FIG. 6, the glass continuous sheet 11 is affixed on the foundation, and the fiber anchor 23 for foundations is also embedded.

  Subsequently, if necessary, fitting of hardware (by N value calculation method) is performed in the areas 25a to 25d (see FIG. 7), and the wood lumber is repaired in the areas 26a to 26d at the four corners of the building 20 (see FIG. 7). 8), fixing plywoods 27a to 27d are installed as a base for fixing the fiber anchor and for non-landing adjustment of the construction surface of the continuous glass fiber sheet to be attached in a staking manner. At this time, the mating portion with the existing outer wall is sealed for water stop, and the base portion is stretched and stuck to the sheet, so the mortar 28 for adjusting the unevenness is applied in accordance with the upper outer wall surface ( (See FIG. 9).

  In the reinforcing method according to this embodiment, a fiber anchor is used to bind the continuous glass fiber sheet and the shaft assembly housing. Prior to the fiber anchor installation, the fiber anchor insertion port is inserted from the fixing plywood to the shaft assembly housing. Make a hole. At the time of drilling, the required depth is surely secured and a predetermined number of holes are made. And cleaning in a hole is performed using an appropriate brush, dust in a hole is also removed, and the waste in a hole is completely removed.

  Subsequently, a primer is applied to the position where the two continuous glass fiber sheets 29a and 29b are attached, and the surface is adjusted to be smoother. At this time, the impregnating resin is uniformly applied to the attaching position with a roller. In the impregnation of the fiber sheet, a continuous glass fiber sheet cut in advance according to the construction site is spread flat on a separately prepared impregnation work table and impregnated uniformly with a roller. In this way, the impregnated continuous glass fiber sheets 29a and 29b are stuck to the base from the wall surface (see FIG. 10).

  The fiber anchor 30 is cut in advance to a length obtained by adding the outer wall / base finish thickness and the extra length fixing length to the insertion length. Then, as described above, after filling the hole with the epoxy resin while gradually pulling out the nozzle in the state where the injector nozzle has reached the hole bottom of the insertion hole previously drilled, the end of the fiber anchor 30 is inserted into the hole bottom. Insert firmly. At that time, the fiber anchor 30 is also impregnated with resin. The extra length portion of the fiber anchor 30 is radially expanded along the continuous glass fiber sheets 29a and 29b (see FIG. 11).

  In this way, the radially expanded fixing of the fiber anchor 30 is covered with an anchor portion by the second cover sheet 31 and defoamed so as not to disturb the fiber (see FIG. 12).

  Although not shown, it is possible to apply a silica sand before the resin is cured to form a base, and after the resin is cured, a mortar construction may be performed and a paint finish may be applied in accordance with the peripheral finish.

  Next, FIG. 13 shows an application example of a building reinforcement method according to an embodiment of the present invention to a two-span connection type. As shown in FIG. 13, a base 43 is formed on a foundation 44, a wall surface of which is a woodwork 41 and a lath mortar wall 42 is formed thereon. And the fixing plywood 45 is arrange | positioned in the edge part of a wall surface, and its intermediate part, and the glass continuous fiber sheet 47 on it cross | intersects in the center part in the mode of staking by 2 sheets 1 set. Thus, it is affixed on the left and right surfaces from the upper end of the wall surface toward the base. And the fiber anchor 46 is embedded in the arrangement | positioning position and base 44 of the fixing plywood 45, and the cover sheet 48 is affixed on it. Here, what is characteristic is that in the two-span connection type, the inner ends of each of the two tacks are partially overlapped, and part of the fiber anchor 46 is also used as two continuous glass fiber sheets, thereby reducing the number. There is in being.

  FIG. 14 illustrates an application example of the building reinforcement method according to the embodiment of the present invention to the first / second floor connection type. As shown in FIG. 14, a base 54 is formed on a foundation 55, and a wall surface is formed with a woodwork 53 and a lath mortar wall 52 is formed thereon. And the fixing plywood 56 is arrange | positioned in the edge part of a wall surface, and its intermediate part, and the glass continuous fiber sheet 57 on the top cross | intersects in the center part in the mode of a sheet of 2 sheets 1 set. Thus, it is affixed in two steps up and down from the upper end of the wall surface toward the foundation. And the fiber anchor 59 is embedded in the arrangement | positioning position of the fixing plywood 56 and the foundation 55, and the cover sheet | seat 58 is affixed on it. Here, what is characteristic is that in the 1st and 2nd floor connection type, the lower and upper ends of the two racks are partially overlapped, and a part of the fiber anchor 59 is also used as two continuous glass fiber sheets. The number is reduced.

  Further, FIG. 15 shows an application example of the building reinforcement method according to the embodiment of the present invention to a basic joint type / exit corner. As shown in FIG. 15, a base 63 is formed on a foundation 64, and a wall surface has a woodwork 61 as a base, and a lath mortar wall 62 is formed thereon. Then, a fixing plywood 67 is disposed at the end of the wall surface, and a glass continuous fiber sheet 66 is placed on the foundation from the upper end of the wall surface so as to cross at the center portion in a manner of staking in one set. 64 is pasted. And the fiber anchor 69 is embedded in the arrangement | positioning position of the fixing plywood 67 and the foundation 64, and the cover sheet 68 is affixed on it.

  As described above, according to the method for reinforcing a building according to an embodiment of the present invention, the glass continuous fiber sheet is pasted from the wall surface to the foundation so as to cross at a substantially central portion in a manner of staking, and further the wall surface Since the fiber anchors are embedded and reinforced from above the continuous glass fiber sheet at the upper end and the foundation of the building, it is possible to reinforce the earthquake resistant wall and foundation part of the existing wooden building together. is there.

  Moreover, as described above, the number of processes is small, large-scale machines and devices are not required for construction, and work in a small space is possible.

  Since the glass continuous fiber sheet is strong against pulling and low in cost, it is suitable for the present reinforcing method for reinforcing an existing building afterwards. Also, the fiber anchor is suitable for this reinforcing method because it can be attached by embedding it in a pre-prepared drilling hole and bending the end of the extra length radially, and also contributes significantly to improving the strength. .

  Next, as examples, performance tests on the following two specimens will be described.

(1) Experiment name In-plane shear experiment of wooden / frame wall

(2) Specimen

(2-1) Specimen symbol T2-1: Fife wooden house seismic reinforcement wall with 910mm width (Fig. 16)
T2-2: Fife wooden house seismic reinforcement wall with 1820mm width foundation (Figure 17)

(2-2) No joint hardware (no joint hardware)

(2-3) Joiner Base-base connection: M12 bolt, M12 nut, M12 square washer Column-wood shear connection: N50 nail

(2-4) Axle Column: Tree species / too much Dimensions 105 × 105mm
Foundation: Tree species / too much Dimensions 105x105mm
Pillar: Tree species / too Dimensions 27 x 105mm
Beam: Tree Species / Vematsu Dimensions 105 × 180mm
Lumberjack: Tree species / too Dimensions 30 x t12mm

(2-5) Number of test specimens 2 (T2-1: 1, T2-2: 1)

(2-6) Others Foundation: Non-muscle foundation (foundation width 120mm, foundation height 400mm)
Foundation reinforcement: Existence (glass continuous fiber sheet reinforcement)

(3) Method of experiment and evaluation Allowable stress level design of wooden frame construction method house (Supervision: Ministry of Land, Infrastructure, Transport and Tourism, Housing Bureau Building Guidance Division, Wooden House Promotion Office, Planning Editor / Publisher: Japan Housing and Wood Technology Center) The “Testing and evaluation method for each element of a wooden frame construction method house” is applied.

(3-1) Experimental method The method of applying force is positive and negative alternating repeated application, and the principle of repetition is that the apparent shear deformation angle is 1/450, 1/300, 1/200, 1/150, 1/100, 1 / The positive and negative deformation angles are 75 and 1/50 rad. In the experiment (force), the force is repeatedly applied three times in the same deformation stage. After measuring the maximum load, apply force until the load decreases to 80% of the maximum load or the deformation angle of the specimen reaches 1/15 rad or more.

(3-2) Measuring method
Use a dial gauge conforming to JIS B 7503 or an electric displacement meter equivalent to this. The measurement position is the horizontal displacement of the beam, the horizontal displacement of the base, and the vertical displacement of the column base.

  The outline of the experimental method and measurement method is shown in FIG.

(3-3) Evaluation method An envelope (skeleton curve) is created based on the experimental results. The envelope is obtained from the first load deformation curve on the ultimate load side of the measured load deformation curve. The complete elastoplastic model is created according to the following procedure based on the envelope created by the above method. Here, the evaluation method will be described in detail with reference to FIG.
(A) Draw the first straight line connecting 0.1Pmax and 0.4Pmax on the envelope (b) Draw the second straight line connecting 0.4Pmax and 0.9Pmax on the envelope (c) Translate the second straight line until it touches the envelope This is the third straight line. (D) The load at the intersection of the first and third straight lines is the yield strength Py, and the fourth straight line parallel to the X axis is drawn from this point. (E) The fourth straight line and the envelope. The deformation angle at the intersection with the line is the yield deformation angle δy. (F) The straight line connecting the origin and (δy, Py) is the Vth straight line and is defined as the initial stiffness K. (g) 0.8 Pmax load after maximum load (H) The area surrounded by the envelope, X-axis and δu is S. (i) The Vth straight line, δu, parallel to the X-axis and X-axis. Draw a VI straight line parallel to the X axis so that the area of the trapezoid surrounded by the straight line is equal to S. (j) Determine the load at the intersection of the V straight line and VI straight line as the ultimate yield strength Pu of the complete elastoplastic model. The deformation angle at that time is the yield point deformation angle δv of the complete elastoplastic model

(4) Experimental Results FIGS. 20 and 21 show the load deformation relationship of the in-plane shear experimental results. The experimental data of wood mortar and lath sheet were added as a comparison object of the test results. “Earthquake diagnosis and reinforcement method for wooden houses 2012 revised edition / example materials” (published by Japan Association for Building Disaster Prevention). 22 and 23 summarize the relationship between FIGS.

(5) Evaluation results

  The evaluation results of the T2-1 specimen are shown below.

Strength of bearing wall (4 indices)

Various characteristic values of bearing walls

  The evaluation results of the T2-2 specimen are shown below.

Strength of bearing wall (4 indices)

Various characteristic values of bearing walls

(6) Consideration According to the embodiment, it is possible to reinforce the seismic wall and the foundation part of an existing wooden building together, there are few processes, and large-scale machines and devices are required for construction. In addition, it is possible to provide a method for reinforcing a building, which can be used in a narrow space and can improve the durability of the building by reinforcement.

DESCRIPTION OF SYMBOLS 1 Building 2 Beam 3 Woodworking foundation 4 Column 5 Lath mortar wall 6a thru | or 6d Fixing plywood 7a, 7b Glass continuous fiber sheet 8 Fiber anchor 9 Foundation 10 Foundation 11 Glass continuous sheet 12a, 12b Fukasi mortar

Claims (3)

In the method of reinforcing a building that integrally reinforces the wall and foundation of the building,
A wall surface cutting step of cutting the wall surface in a predetermined range at the four corners of the wall surface;
A fixing plywood attaching step for fixing the fixing plywood at the four corners obtained by cutting the wall surface;
A non-land adjustment member that arranges the non-surface adjustment member on the fiber sheet attached to the foundation, and adjusts the non-surface,
For each predetermined unit of the wall surface, a fiber sheet affixing step of affixing at least two fiber sheets to the wall surface in a diagonally slanted manner with the fixing plywood and the unevenness adjusting member as a basis;
A fiber anchor embedding step of fixing the fiber sheet by inserting a fiber anchor into the hole of the fixing plywood on the wall surface and the hole of the foundation at both ends of the fiber sheet;
A cover sheet attaching step for attaching a cover sheet on the fiber anchor;
A method of reinforcing a building having The method for reinforcing a building according to claim 1, wherein the fiber sheet is a glass continuous fiber sheet. The method for reinforcing a building according to claim 1, wherein the fiber sheet is bonded to the wall surface and the foundation with an epoxy resin.