CN101936074B - Fast building earthquake-resisting reinforcing method and device - Google Patents
Fast building earthquake-resisting reinforcing method and device Download PDFInfo
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- CN101936074B CN101936074B CN201010245607A CN201010245607A CN101936074B CN 101936074 B CN101936074 B CN 101936074B CN 201010245607 A CN201010245607 A CN 201010245607A CN 201010245607 A CN201010245607 A CN 201010245607A CN 101936074 B CN101936074 B CN 101936074B
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000004873 anchoring Methods 0.000 claims abstract description 31
- 239000011440 grout Substances 0.000 claims abstract description 9
- 238000005553 drilling Methods 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims description 40
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- 239000003566 sealing material Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
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- 238000010276 construction Methods 0.000 abstract description 37
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
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Abstract
The invention provides fast building earthquake-resisting reinforcing method and device. The fast building earthquake-resisting reinforcing device is a prefabricated part, the inner side of the prefabricated part is provided with a grout groove, and the grout groove is communicated with the outer side of the prefabricated part through more than one grout hole. The reinforcing method comprises the following steps of: removing the skin of the junction surface at the junction part between a wall of the reinforced building and the prefabricated part, and drilling anchoring holes in the wall, wherein the position of each anchoring hole is corresponding to the junction hole in the prefabricated part; installing the prefabricated part on the wall of the reinforced building through anchoring bolts, anchoring adjacent prefabricated parts, and fixedly bonding the prefabricated parts to the surface of the wall together. The technical scheme of field assembly of the prefabricated parts is adopted to reinforce the building, more than half field construction period can be shortened, the prefabricated parts can be produced in factories during school time, and enough time for ensuring production quality is guaranteed.
Description
Technical Field
The invention relates to a method and a device for quickly reinforcing earthquake resistance of a house, in particular to a method for quickly reinforcing earthquake resistance of the house by adopting prefabricated additional constructional columns and ring beams and a reinforcing device comprising the prefabricated constructional columns and the ring beams.
Background
At present, a large number of brick-concrete structure houses are still arranged in civil buildings, and the brick-concrete structure houses are seriously damaged in an earthquake, so that the earthquake-resistant reinforcement of the existing brick-concrete structure houses which are not designed to resist earthquake is necessary. The reinforcing mechanism is mainly used for restraining large deformation of the wall body of the brick-concrete house, so that when the brick-concrete house is attacked by an earthquake, the wall body is seriously cracked but cannot lose the bearing capacity immediately to cause the collapse of the house, the energy consumption capacity of the brick-concrete house is improved, the ductility performance of the brick-concrete house is improved, and the house is prevented from collapsing under the action of the earthquake.
Model tests and researches at home and abroad prove that: the brick-concrete house is provided with the additional constructional columns and the ring beams, so that the integrity of the house is enhanced, the wall body is prevented from being thrown outwards, the scattering of wall bricks is restrained, the collapse of the prefabricated plates is prevented, and the like, and the brick-concrete house has very obvious effects. The existing anti-seismic reinforcement standard in China takes an additional constructional column and a ring beam as main reinforcement measures of a brick-concrete structure house, and the reinforcement construction is carried out by adopting a cast-in-place method.
The construction of the cast-in-place externally-added constructional column and the ring beam which are known at present needs to bind reinforcing steel bars, arrange templates, pour concrete, disassemble forms and the like on the site of a reinforced house, the time consumed by the reinforcement construction is long, and the influence on living and living people in the house is large. Therefore, most of the current towns strictly limit the influence of construction sites, control the noise and environmental pollution, and generally do not allow the use of site stirring concrete. And the commercial concrete is adopted, because the sections of the constructional columns and the ring beams are smaller, the consumption of the concrete required for one time is smaller, larger waste can be caused, and the commercial concrete is not suitable. Particularly, in the middle and primary schools, the construction work cannot be performed during the study period of students, and only two holidays of cold and hot days can be performed every year, and the time is about three months, so that the reinforcement work is performed on all the schools, and the complete reinforcement work in a short period is difficult by the known method.
In addition, the sections of the externally-added constructional column and the ring beam are small, and concrete is vertically poured, so that construction operation is difficult to ensure, and the pouring quality of the constructional column and the ring beam is difficult to ensure.
Disclosure of Invention
The invention aims to provide a construction method for quickly reinforcing the earthquake resistance of a house by adopting a prefabricated reinforcing device.
Therefore, the invention provides a rapid house seismic strengthening method, which comprises the following steps:
A. chiseling the surface of the connecting part of the wall body of the reinforced house and the prefabricated part which is manufactured in a factory in advance, and drilling anchoring holes on the wall body of the reinforced house with the chiseled surface, wherein the positions of the anchoring holes correspond to the connecting holes on the prefabricated part;
B. installing prefabricated parts on the wall body of the reinforced house through anchor bolts, wherein the prefabricated parts are constructional columns, external corner constructional columns and ring beams at the joint of longitudinal walls and transverse walls made of reinforced concrete;
C. anchoring the adjacent prefabricated components;
D. and fixedly bonding the prefabricated part and the wall of the reinforced house into a whole.
The invention also provides a rapid house earthquake-resistant reinforcing device, wherein the rapid house earthquake-resistant reinforcing device is a prefabricated part manufactured in a factory in advance, the inner side of the prefabricated part is provided with a grouting groove, the grouting groove is communicated with the outer side of the prefabricated part through more than one grouting hole, and the prefabricated part is a constructional column, an external corner constructional column and a ring beam at the joint of a longitudinal wall and a transverse wall made of reinforced concrete.
According to the rapid house earthquake-resistant reinforcing method provided by the invention, the house is reinforced by adopting the technical scheme of on-site assembly of the prefabricated parts, the on-site construction period can be shortened by more than half, and the prefabricated parts can be produced in factories by utilizing the school time in class, so that the production quality of the parts can be ensured. In addition, the cost for reinforcing the brick-concrete house by adopting the prefabricated components can be saved by about 20 percent compared with the cost for reinforcing the brick-concrete house by adopting cast-in-place constructional columns and ring beams.
According to the rapid house earthquake-resistant reinforcing method provided by the invention, the prefabricated component and the wall body of the reinforced house are sealed by the joint sealing material, grouting is carried out between the prefabricated component and the wall body of the reinforced house through the grouting hole, or the inner side surface of the prefabricated component and the surface of the wall body of the reinforced house are coated with the externally-adhered bonding material, so that the prefabricated component (an externally-adhered constructional column and a ring beam) and the wall body of the reinforced house are connected into a whole to achieve the same reinforcing effect as that of the cast-in-place constructional column and the ring beam, and the construction quality required by the earthquake-resistant reinforcing standard is ensured.
Compared with the known methods of binding reinforcing steel bars on site, arranging templates and pouring concrete vertically, the method and the device for quickly reinforcing the earthquake resistance of the house, provided by the invention, can effectively improve the pouring quality of the prefabricated part, so that the quality of the long and thin prefabricated part with longer length and smaller section can be fully ensured. In addition, the reinforcing device of the invention makes the connecting surface between the prefabricated components and the contact surface between the prefabricated components and the wall body of the reinforced house into the rough surface, thereby effectively improving the connection firmness; the prefabricated parts can be connected with each other by adopting the reserved ribs and the reserved hole channels, so that the anchoring strength between the prefabricated parts is higher, and the operation is convenient; the prefabricated member adopts lightweight concrete, can reduce the dead weight of the prefabricated member, is convenient for transportation, installation and construction, and is also favorable for earthquake resistance.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is a schematic structural view of a reinforcing apparatus of the present invention, i.e., a structural column at the junction of a longitudinal wall and a transverse wall;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged partial schematic view at H of FIG. 1;
FIG. 4 is a schematic view of the construction of the reinforcement device of the present invention, i.e., the ring beam of the prefabricated part;
FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a schematic view of the reinforcement structure of the present invention, namely, the reinforcing bar structure of the constructional column at the junction of the prefabricated vertical and horizontal walls;
FIG. 7 is a schematic cross-sectional view taken along line C-C of FIG. 6;
FIG. 8A is a schematic structural view of the reinforcement device of the present invention, i.e., the prefabricated component external corner construction post;
FIG. 8B is a schematic top view of an external corner construction post of the present invention;
FIG. 8C is a structural schematic view of the reinforcement of the external corner structural post of the present invention;
FIG. 9 is a schematic structural diagram of a reinforcement structure of the ring beam of the prefabricated part of the present invention;
FIG. 10 is a schematic view showing a connection structure between two adjacent prefabricated units according to the present invention;
FIG. 11 is a schematic view showing a reinforcing state of the prefabricated part according to the present invention, showing a connection structure state of constructional columns, ring beams and walls of a reinforced house at the junctions of the longitudinal and transverse walls;
FIG. 12 is a schematic view showing a reinforcing state of the prefabricated parts according to the present invention, showing a coupling structure state of the external corner constructional columns, the ring beams and the wall body of the reinforced house;
FIG. 13A is a schematic view of the external corner structural columns of the prefabricated parts of the present invention being attached to a wall in an external manner;
FIG. 13B is a schematic view of the prefabricated member of the present invention with the structural columns at the intersections of the longitudinal and transverse walls externally attached to the wall;
FIG. 14A is a schematic view of the present invention prefabricated component with the external corner construction post embedded in the wall;
fig. 14B is a schematic view of the embedded connection of the constructional columns at the cross-wall junction of the prefabricated member of the invention with the wall body.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Like parts are given the same reference numerals.
FIG. 1 is a schematic structural view of a reinforcing apparatus of the present invention, i.e., a structural column at the junction of a longitudinal wall and a transverse wall; FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1; FIG. 3 is an enlarged partial schematic view at H of FIG. 1; FIG. 4 is a schematic view of the construction of the reinforcement device of the present invention, i.e., the ring beam of the prefabricated part; FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 4; FIG. 6 is a schematic view of the reinforcement structure of the present invention, namely, the reinforcing bar structure of the constructional column at the junction of the prefabricated vertical and horizontal walls; FIG. 7 is a schematic cross-sectional view taken along line C-C of FIG. 6; FIG. 8A is a schematic structural view of the reinforcement device of the present invention, i.e., the prefabricated component external corner construction post; FIG. 8B is a schematic top view of an external corner construction post of the present invention; FIG. 8C is a structural schematic view of the reinforcement of the external corner structural post of the present invention; fig. 9 is a schematic structural diagram of the reinforcement of the ring beam of the prefabricated part of the invention.
The invention provides a rapid earthquake-resistant reinforcing construction method for a house, which adopts a reinforcing device, namely prefabricated parts, to be transported to a reinforcing site after the factory processing is finished, and only the prefabricated parts are spliced and connected with the house in an anchoring manner into a whole during the site construction, so that the earthquake-resistant reinforcing construction can be rapidly performed on the house, and the earthquake resistance of the house is improved.
As shown in fig. 1-9, the earthquake-resistant reinforcement device for a rapid building provided by the invention is a prefabricated member (including a constructional column and a ring beam), the prefabricated member 10 is manufactured in advance in a factory, the inner side of the prefabricated member 10 is provided with a grouting groove 17, and more than one grouting hole 16 penetrates through the prefabricated member from the outer side of the prefabricated member 10 and is communicated with the grouting groove 17. The term "inner side" and "outer side" as used herein means that when the prefabricated member is installed on the wall of the room to be reinforced, the side of the prefabricated member facing the wall of the room to be reinforced is referred to as "inner side", whereas the side facing away from the wall of the room to be reinforced is referred to as "outer side". As shown in the drawings, the reinforcing apparatus (prefabricated member 10) according to the present invention mainly includes a vertical and horizontal wall junction structural column 10A, an external corner structural column 10B, and a ring beam 10C, depending on the position of anchoring at a house.
In order to make the poured grout flow to the whole length of the prefabricated part 10, it is preferable that a longitudinal grouting groove 17 is formed along the length direction of the prefabricated part 10, and for the construction column 10A at the junction of the longitudinal wall and the transverse wall of the cross-shaped structure, the longitudinal grouting groove 17 is formed in the same cross shape as the construction column. And for the external corner constructional column 10B, longitudinal grouting grooves 17 are formed in the adjacent two side column bodies 10B-1 and 10B-2 and the bulges 10B-3 and 10B-4 connected with the ring beams along the length direction of the external corner constructional column.
Optionally, at least one transverse grouting groove (not shown) communicated with the longitudinal grouting groove may be further disposed in the width direction of the prefabricated parts (the vertical and horizontal wall junction constructional columns 10A, the external corner constructional columns 10B and the ring beam 10C), so as to improve the fluidity of grouting slurry, enable the slurry to uniformly fill the space between the prefabricated parts and the wall body of the additionally-fixed house, and further improve the bonding firmness between the prefabricated parts and the wall body.
Further, in order to shorten the grouting work time, to uniformly distribute grout over the entire length of the structural column, and to improve the adhesion between the structural column and the reinforced house, a plurality of grouting holes 16 may be provided in the longitudinal direction of the grouting groove 17.
The inside of prefabricated component 10 is equipped with many longitudinal reinforcement 11 to and set up multichannel stirrup 12 along length direction, and the density of the stirrup 12 that is close to the link is greater than the density of the stirrup 12 that the prefabricated component middle part set up. The specific arrangement positions and standards of the longitudinal steel bars 11 and the stirrups 12 adopt the well-known technical standards, and are not described in detail herein.
In order to improve the aesthetic property of the house, the outer side surface of the prefabricated part 10 can be made into a decorative surface with patterns or concave-convex patterns, so as to improve the decorative effect of the house.
Further, the connecting end of the prefabricated component 10 is provided with a reserved hole 13 or a reserved steel bar 14, as shown in fig. 1, 3 and 8A, two ends of each reserved hole 13 are respectively provided with a grouting hole 130 and an exhaust hole 131 connected with the outer wall of the prefabricated component 10, in this embodiment, the grouting hole 130 is disposed at the outer side end of the reserved hole 13, and the exhaust hole 131 is disposed at the inner side end of the reserved hole 13. The arrangement positions of the exhaust holes and the grouting holes are not limited to the above, and the grout can be smoothly injected into the reserved hole channel. During construction, the reserved steel bars 14 are inserted into the reserved hole 13, the peripheries of the connecting ends of two adjacent prefabricated parts 10 are sealed by sealing glue 20, and two adjacent prefabricated parts 10 are anchored by grouting into the reserved hole 13 through the grouting holes 130 (see fig. 10). The number of the preformed hole 13 and the preformed reinforcement 14 is determined according to the required connection strength. For example, according to the requirement of seismic reinforcement regulations in the field, 4 reserved holes 13 or reserved steel bars 14 can be arranged, and the reserved holes 13 are manufactured to have the diameter of 25mm, the distance of 25mm from the outer surface of the prefabricated part 10 and the length of 250 mm. The diameter of the reserved steel bar 14 is slightly smaller than 25mm, and the length of the reserved steel bar is slightly shorter than 250 mm.
The invention provides a rapid house earthquake-resistant reinforcing method which mainly comprises the following steps:
A. chiseling the surface of the connecting part of the wall body of the reinforced house and the prefabricated part 10, and drilling anchoring holes on the wall body of the reinforced house with the surface chiseled, wherein the positions of the anchoring holes correspond to the connecting holes on the prefabricated part 10;
B. installing the prefabricated parts 10 to the wall of the reinforced house by means of anchor bolts;
C. anchoring the adjacent prefabricated parts 10;
D. and fixedly bonding the prefabricated part 10 and the wall surface of the reinforced house into a whole.
The method of the invention is adopted to perform earthquake-proof reinforcement on the house, and the reinforcement device comprises the following steps: the constructional columns 10A, the external corner constructional columns 10B and the ring beams 10C at the joints of the longitudinal walls and the transverse walls are all delivered to a construction site after being processed in advance in a factory, and are anchored with a reinforced house after being spliced and bonded with the wall body of the house into a whole. Compared with the prior art, the reinforcement method of the invention omits the procedures of reinforcing steel bar binding, formwork erecting, pouring, formwork stripping and the like on site, saves the site construction time by more than half, greatly improves the construction efficiency, and reduces the noise and the environmental pollution at the same time.
FIG. 10 is a schematic view showing a connection structure between prefabricated parts according to the present invention; fig. 11 and 12 are schematic views of the connection structure between prefabricated parts and between the prefabricated parts and the wall of a reinforced house according to the present invention, wherein fig. 11 schematically shows the connection structure state of the constructional columns, the ring beams and the wall of the reinforced house at the junction of the longitudinal walls and the transverse walls, and fig. 12 schematically shows the connection structure state of the external corner constructional columns, the ring beams and the wall of the reinforced house; FIG. 13A is a schematic view of the external corner structural columns of the prefabricated parts of the present invention being attached to a wall in an external manner; FIG. 13B is a schematic view of the prefabricated member of the present invention with the structural columns at the intersections of the longitudinal and transverse walls externally attached to the wall; FIG. 14A is a schematic view of the present invention prefabricated component with the external corner construction post embedded in the wall; fig. 14B is a schematic view of the embedded connection of the constructional columns at the cross-wall junction of the prefabricated member of the invention with the wall body. In the drawings of the present embodiment, the prefabricated member 10 is provided only schematically on the outer wall of the house 4 to be reinforced, but the present construction method is also applicable to the prefabricated member 10 provided on the inner wall of the house 4 to be reinforced.
The concrete implementation mode of the rapid house earthquake-resistant reinforcing method provided by the invention is that the prefabricated part 10 and the reinforced house 4 are firmly adhered into a whole in a grouting mode, and the method mainly comprises the following steps:
a, chiseling the surface of the connecting part of the wall body of the reinforced house 4 and the prefabricated part 10, and drilling anchoring holes 41 on the wall body of the reinforced house with the chiseled surface, wherein the positions of the holes correspond to the connecting holes 15 on the prefabricated part 10;
step B, mounting the prefabricated part 10 on the wall of the reinforced house 4 through the anchor bolt 5;
step C, anchoring the adjacent prefabricated parts 10;
and D, fixedly bonding the prefabricated part 10 and the wall surface of the reinforced house 4 into a whole.
Wherein the anchor bolt 5 is fixed in the anchor hole 41 drilled on the reinforced house 4, the connecting hole 15 of the prefabricated part 10 is aligned with the anchor bolt 5 fixed on the wall of the reinforced house 4, the other end of the anchor bolt 5 is connected with the inner ring beam 10' of the reinforced house 4 in an anchoring manner, and the prefabricated part 10 is fixed on the surface of the wall of the reinforced house 4 through the anchor bolt. The anchoring connection between the prefabricated elements 10 and the walls of the reinforced house 4, the inner ring beams 10', is well known in the art and will not be described in detail herein.
Specifically, after the drilling of the anchoring holes is completed in the reinforced house, as shown in fig. 11 and 12, the vertical and horizontal wall junction structural columns and the external corner structural columns are respectively disposed at the vertical and horizontal wall junction and the external corner position of the house, the vertical and horizontal wall junction structural columns and the external corner structural columns are fixed to the wall of the reinforced house at the above positions by the anchoring bolts 5, and then both ends of the girth 10C are respectively connected to the horizontal connecting ends of the vertical and horizontal wall junction structural column 10A or the external corner structural column 10B.
As shown in fig. 6, 8, and 9, the connecting ends of the adjacent prefabricated components 10 are respectively provided with a reserved hole 13 or a reserved steel bar 14, for example, the transverse connecting ends of the vertical and horizontal wall junction constructional columns 10A and the external corner constructional columns 10B shown in fig. 6 and 8 are provided with the reserved hole 13, the upper connecting ends are provided with the reserved hole 13, the lower connecting ends are provided with the reserved steel bars 14, and the ring beam 10C shown in fig. 9 is provided with the reserved steel bars 14 at both ends thereof, please refer to fig. 11 and 12 together, and the reserved steel bars 14 arranged at the connecting ends of the ring beam 10C can be inserted into the reserved holes 13 arranged at the connecting ends of the adjacent vertical and horizontal wall junction constructional columns 10A or the external corner constructional columns 10B during construction. The arrangement positions of the reserved steel bars 14 and the reserved hole channels 13 are not limited to the above, and it is only required to ensure that one end of the connecting end of two adjacent prefabricated parts is provided with the reserved steel bars, and the other end of the connecting end is provided with the reserved hole channels. During construction, longitudinal connection of the longitudinal and transverse wall joint constructional columns 10A or the external corner constructional columns 10B in the height direction and transverse connection of the ring beam 10C and the longitudinal and transverse wall joint constructional columns 10A or the external corner constructional columns 10B are achieved by inserting a reserved steel bar 14 arranged at one end of one prefabricated part 10 into a reserved hole 13 arranged at one end of the other adjacent prefabricated part 10, and after the reserved steel bar 14 is inserted into the reserved hole 13, as shown in fig. 10, the periphery of the connecting end of the two adjacent prefabricated parts 10 is sealed by sealing glue 20. In order to connect two prefabricated components 10 firmly, an injection hole 19 may be left at the sealed position, i.e. after the connecting ends of two adjacent prefabricated components 10 are sealed by sealing glue 20, the injection hole 19 is used to inject the grouting into the sealing glue 20, so that the connecting position has higher connecting strength.
In addition, the grouting holes 130 arranged on the outer wall of the connecting end of the prefabricated part 10 and connected with the reserved hole 13 are used for grouting into the reserved hole 13, so that the anchoring strength between the two prefabricated parts 10 is further improved. Thereby, two adjacent prefabricated components 10 are connected in an anchoring way, and the ring beam 10C, the construction column 10A at the joint of the longitudinal wall and the transverse wall and the external corner construction column 10B are anchored to form an integral frame structure which is anchored with the reinforced house 4.
In order to prevent grouting material poured between the prefabricated part 10 and the wall of the reinforced house 4 from flowing to the outside of the prefabricated part 10 and affecting the connection firmness between the prefabricated part 10 and the wall of the reinforced house 4, the two side edges of the prefabricated part 10 and the wall of the reinforced house 4 are sealed by using a sealing material, so that a closed space is formed between the inner side of the prefabricated part 10 and the wall of the reinforced house. Grouting into the grouting groove 17 through the grouting holes 16 arranged on the prefabricated part 10, wherein in the grouting process, the grouting holes 16 which are not filled with grout play the role of exhaust holes, so that the filled grout can be smoothly injected into the grouting groove and filled in the closed space, and the prefabricated part 10 and the wall of the reinforced house 4 are adhered into a whole. The grouting material can adopt polymer grouting material with very high bonding strength, such as M10 polymer grouting material or more.
In order to improve the connection strength between the frame body formed by anchoring the prefabricated parts 10 and the wall of the house 4 to be reinforced, the connection ends of the prefabricated parts 10 and the contact surfaces of the prefabricated parts 10 and the wall of the house 4 to be reinforced can be processed into rough surfaces, so that the friction force of the contact surfaces is increased, and the connection ends of the prefabricated parts 10 and the connection surfaces of the prefabricated parts 10 and the wall of the house 4 to be reinforced are more firmly adhered.
The house earthquake-resistant reinforcing method can shorten the construction period on site by more than half compared with the known cast-in-place method because the prefabricated components are assembled on site and anchored and adhered with the reinforced house, and can produce the prefabricated components 10 in batches in factories by using the class time of schools when the school houses of schools are subjected to earthquake-resistant reinforcement, so that sufficient time can be provided for processing and manufacturing the prefabricated components 10, and the prefabricated components 10 required by site construction can be well preserved and guaranteed.
The prefabricated member 10 of the present invention may be made of lightweight concrete, thereby reducing the self weight of the prefabricated member, facilitating transportation, installation and construction, and also facilitating earthquake resistance. The cost for reinforcing the brick-concrete house by adopting the method of the invention can be saved by about 20 percent compared with the cost for reinforcing the brick-concrete house by adopting the known cast-in-situ constructional columns and the ring beams.
The prefabricated part 10 is manufactured in batches in a factory, and reinforcing steel bars can be bound on a workbench and concrete can be horizontally vibrated and poured on a vibration table during manufacturing of constructional columns and ring beams.
Another specific embodiment of the method for reinforcing the earthquake resistance of the rapid building provided by the invention is different from the first embodiment in that the inner side surface of the prefabricated part 10 and the wall surface of the reinforced building are respectively coated with external pasting materials, and the two are pasted into a whole to reinforce the earthquake resistance of the building. The method comprises the following specific steps:
A. and chiseling the surface of the connecting surface of the wall body of the reinforced house 4 and the connecting part of the prefabricated part 10, and drilling anchoring holes on the wall body of the reinforced house with the chiseled surface, wherein the positions of the anchoring holes correspond to the connecting holes on the prefabricated part.
And respectively coating external adhesive materials on the wall body of the house 4 to be reinforced and the connection surface of the prefabricated part 10, and then performing the step B to install the prefabricated part 10 on the wall body of the house 4 to be reinforced through anchor bolts. Specifically, the anchor bolt 5 is fixed in the anchor hole 41 drilled in the reinforced house 4, the connecting hole 15 of the prefabricated part 10 coated with the adhesive material is aligned with the anchor bolt 5 fixed on the wall of the reinforced house 4 coated with the adhesive material, the other end of the anchor bolt 5 is connected with the inner ring beam 10' of the reinforced house 4 in an anchoring manner, and the prefabricated part 10 is fixedly adhered to the wall surface of the reinforced house 4 into a whole by tightening the anchor bolt. The external adhesive material is polymer mortar not lower than M10.
Other operation steps are the same as those in the first embodiment, and are not described herein again.
Other structures, operation principles, and advantageous effects of the present embodiment are the same as those of embodiment 1, and are not described herein again.
The invention provides a rapid house earthquake-resistant reinforcing method, which can be used for firmly sticking a prefabricated part 10 and a reinforced house 4 into a whole by adopting a grouting mode of a first embodiment or a mode of coating an external sticking material of a second embodiment, and can be used for adopting an external sticking type reinforcing method shown in figures 13A and 13B during construction, namely, only removing the surface of the wall connecting surface at the connecting part of the reinforced house 4 and the prefabricated part 10, and fixedly sticking the prefabricated part 10 and the wall into a whole; or as shown in fig. 14A and 14B, an embedded reinforcement method is adopted, namely, a groove with a certain depth is formed by chiseling a part of the wall body at the connecting part of the reinforced house 4 and the prefabricated component 10, the prefabricated component 10 is embedded into the groove, and the prefabricated component 10 and the wall body are fixedly adhered into a whole, so that the house is reinforced.
When the method is used for seismic reinforcement of a house, the connection between the prefabricated parts is not limited to the arrangement of the reserved hole 13 or the reserved steel bars 14 at the connecting ends of the prefabricated parts 10, and the mutual connection between the prefabricated parts 10 is realized by inserting the reserved steel bars 14 into the reserved hole 13, sealing the two connecting ends by using glue and grouting into the reserved hole 13. And a conventional bar planting method can be adopted, and the connecting effect is very reliable. The concrete procedures of the bar planting method are conventional technologies, and are not described herein again.
In the method and the device for the earthquake-proof reinforcement of the rapid building, the sectional shape, the size and the reinforcing bars of the prefabricated parts 10 (the vertical and horizontal wall junction constructional columns 10A, the external corner constructional columns 10B and the ring beams 10C) execute the earthquake-proof reinforcement specification in the field, and the system configuration (namely, the determination of the actual positions of the physical building constructional columns and the ring beams) also adopts the specification and the standard which are known in the field. The length of the prefabricated components can be determined according to the storey height and the anchoring requirement of the reinforced house, and the length of the prefabricated ring beam 10C can be determined according to the bay and depth length and the anchoring requirement of the reinforced house. The positions of the connection joints of the prefabricated parts 10 and the reinforced house are set according to different seismic intensity in a known mode.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (16)
1. A method for earthquake-resistant reinforcement of a shortcut house comprises the following steps:
A. chiseling the surface of the connecting part of the wall body of the reinforced house and the prefabricated part which is manufactured in a factory in advance, and drilling anchoring holes on the wall body of the reinforced house with the chiseled surface, wherein the positions of the anchoring holes correspond to the connecting holes on the prefabricated part;
B. installing prefabricated parts on the wall body of the reinforced house through anchor bolts, wherein the prefabricated parts are constructional columns, external corner constructional columns and ring beams at the joint of longitudinal walls and transverse walls made of reinforced concrete;
C. anchoring the adjacent prefabricated components;
D. and fixedly bonding the prefabricated part and the wall of the reinforced house into a whole.
2. The method for earthquake-resistant reinforcement of rapid buildings according to claim 1, wherein after the step C, the two sides of the prefabricated components and the wall are sealed by joint sealing materials, grouting is performed between the prefabricated components and the wall of the reinforced building through grouting holes arranged on the prefabricated components, and the prefabricated components and the wall surface of the reinforced building are bonded into a whole through the grouting materials.
3. A method for earthquake-resistant reinforcement of a shortcut house according to claim 2, wherein said prefabricated member has a grouting groove along its length on its inner side, said grouting groove is communicated with said prefabricated member's outer side through more than one grouting hole.
4. The method for earthquake-resistant reinforcement of quick houses according to claim 2, wherein the grouting material is a polymer grouting material of M10 or more.
5. A rapid house earthquake-resistant reinforcing method according to claim 1, wherein the inner side surfaces of the prefabricated components and the wall surface of the reinforced house are bonded into a whole through an externally-attached bonding material.
6. The method for earthquake resistance and reinforcement of rapid buildings according to claim 5, wherein after the step A, the step B is performed after the prefabricated parts and the walls of the reinforced buildings are coated with the adhesive coating material, respectively, and the prefabricated parts coated with the adhesive coating material are installed on the walls of the reinforced buildings by the anchor bolts, and then the operation of the step C, D is performed.
7. A method for earthquake-resistant reinforcement of a rapid building according to claim 5 or 6, wherein said outer bonding material is polymer mortar.
8. A method for earthquake resistance and reinforcement of a shortcut house according to claim 1, wherein said longitudinal and transverse wall junction structural columns and said external corner structural columns are installed on said wall of said reinforcement house, said collar beam is connected to said longitudinal and transverse wall junction structural columns and said external corner structural columns, and said collar beam is installed on said wall of said reinforcement house.
9. A quick house earthquake-resistant reinforcing method according to any one of claims 1 to 6, wherein the connecting end of one of two adjacent prefabricated components is provided with a reserved hole, and the connecting end of the other prefabricated component is provided with a reserved steel bar; two ends of each reserved pore channel are respectively connected and communicated with the outer wall of the prefabricated part through a grouting hole and an exhaust hole; inserting a reserved steel bar arranged on one connecting end of two adjacent prefabricated components into the reserved hole channel arranged on the other connecting end, then sealing the periphery of the connecting end of the two prefabricated components by using sealing glue, and grouting from the grouting hole into the reserved hole channel to finish anchoring between the two adjacent prefabricated components.
10. The rapid house earthquake-resistant reinforcing device is characterized in that the rapid house earthquake-resistant reinforcing device is a prefabricated part manufactured in a factory in advance, a grouting groove is formed in the inner side of the prefabricated part and communicated with the outer side of the prefabricated part through more than one grouting hole, and the prefabricated part is a longitudinal and transverse wall joint constructional column, an external corner constructional column and a ring beam which are made of reinforced concrete.
11. A quick house seismic strengthening device according to claim 10, in which a longitudinal grout groove is provided along the length of said prefabricated members.
12. A quick house earthquake-resistant reinforcing device according to claim 11, wherein at least one transverse grouting groove communicated with said longitudinal grouting groove is provided in the width direction of said prefabricated member.
13. A quick house seismic strengthening device as defined in claim 10, wherein said prefabricated members have a plurality of longitudinal reinforcing bars disposed therein and a plurality of stirrups disposed along the length thereof, the stirrups proximate the connecting ends having a density greater than the stirrups disposed at the middle of the prefabricated members.
14. A quick house earthquake-resistant reinforcement as defined in claim 10, characterised in that the outer side of said prefabricated elements is provided with a decorative surface having a pattern or relief.
15. A rapid house earthquake-resistant reinforcing device according to any one of claims 10 to 14, wherein the connecting end of the prefabricated member is provided with a reserved hole or a reserved steel bar, and both ends of each reserved hole are respectively provided with a grouting hole and an exhaust hole communicated with the outer wall of the prefabricated member; the reserved steel bars can be inserted into the reserved hole channel, the periphery of the connecting ends of the two adjacent prefabricated parts is sealed by sealing glue, and the two adjacent prefabricated parts are anchored by grouting into the reserved hole channel through the grouting holes.
16. A quick house earthquake-resistant strengthening device according to any one of claims 10 to 14, wherein the connection surface of said prefabricated members with the strengthened house, and the connection surface between the prefabricated members with the prefabricated members are rough surfaces.
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| CN201010245607A CN101936074B (en) | 2010-08-05 | 2010-08-05 | Fast building earthquake-resisting reinforcing method and device |
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| CN201010245607A CN101936074B (en) | 2010-08-05 | 2010-08-05 | Fast building earthquake-resisting reinforcing method and device |
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| CN103089025A (en) * | 2011-11-08 | 2013-05-08 | 上海美创建筑加固工程有限公司 | Method for manufacturing masonry structure seismic reinforcement constructional column |
| CN102561717B (en) * | 2011-12-31 | 2014-10-29 | 北京筑福国际工程技术有限责任公司 | Method for reinforcing brick-concrete structure by utilizing angle steel frame |
| CN102979322B (en) * | 2012-12-31 | 2015-06-10 | 上海市建筑科学研究院(集团)有限公司 | Method for integrally reinforcing masonry structure by sectional steel combined ring beams and construction columns |
| CN103741961B (en) * | 2014-01-06 | 2015-09-09 | 北京筑福国际工程技术有限责任公司 | To boost sales after the prefabricated circular hole slab of existing building the dark seismic strengthening of beams method of key |
| ES2953518T3 (en) * | 2016-10-17 | 2023-11-14 | Burkhart Schurig | Dry Construction Concrete Mixed Pillar Wall Construction System for Home Construction |
| CN113235967B (en) * | 2021-05-22 | 2022-02-22 | 邵立 | Old house reinforcing structure and construction method thereof |
| CN117231029B (en) * | 2023-08-28 | 2024-04-26 | 齐齐哈尔大学 | Outer frame for reinforcing and reforming precast slab brick concrete structure and construction method thereof |
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| CN1054465A (en) * | 1991-02-11 | 1991-09-11 | 朱友山 | Anti-quake strengthening method of thin prestressed concrete with thin reinforcing bars |
| CN1063327A (en) * | 1991-10-18 | 1992-08-05 | 朱友山 | Anti-seismic reinforcing method by use of prestressed fine reinforcing fabrics and thin cement sand beds |
| CN1546823A (en) * | 2003-11-28 | 2004-11-17 | 广东省建筑科学研究院 | Prestressed steeling reinforcement method for concrete column |
| CA2502065A1 (en) * | 2005-03-23 | 2006-09-23 | 5108 N.W.T. Limited | Method for in situ repair of timber piles using synthetic reinforcing fabric |
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| 陆洲导等.应用外加构造柱法对结构进行抗震加固实例.《四川建筑科学研究》.1997,第20-22页. * |
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