Fabricated aseismic reinforcing structure for door-shaped frame and aseismic reinforcing method thereof

Abstract

The application discloses an assembled anti-seismic reinforcing structure for a door-shaped frame and an anti-seismic reinforcing method thereof, the door-shaped frame comprising two frame columns arranged at intervals and a frame beam connected to the top of the two frame columns, and the anti-seismic reinforcing structure comprising: two prefabricated columns, the two prefabricated columns being respectively connected to the opposite inner sides of the two frame columns, each prefabricated column comprising a first steel core and first concrete poured outside the first steel core, and the top of the first steel core extending out of the first concrete and forming a first extension section; a prefabricated beam, the prefabricated beam comprising a second steel core and second concrete poured outside the second steel core, both ends of the second steel core extending out of the second concrete and forming two second extension sections, and the two second extension sections being respectively connected to the two first extension sections, and the construction efficiency being improved by arranging the anti-seismic reinforcing structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and in particular to a fabricated anti-seismic reinforcing structure for a door-shaped frame and an anti-seismic reinforcing method thereof. BACKGROUND

[0002] With the acceleration of urban renewal construction, some old buildings that have been out of repair for many years and do not meet the requirements of anti-seismic design need to be anti-seismic reinforced and reconstructed. At present, the commonly used method for building reinforcement is the section enlargement method, which requires the original structure to be chiseled out, the steel cage to be widened and densified after being chiseled out, and to be re-poured. The construction process is complex, the construction period is long, there is a lot of dust during construction, which seriously endangers the health of the construction operators, and the normal use of the building structure must be suspended during the reinforcement construction. There is a lack of an economical, reasonable and efficient reinforcement method. SUMMARY

[0003] The purpose of the present application is to overcome the defects of the prior art, provide a fabricated anti-seismic reinforcing structure for a door-shaped frame and an anti-seismic reinforcing method thereof, which does not damage the original structure, does not produce dust during construction, can carry out normal production and life during reinforcement construction, and improves the construction efficiency.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is a fabricated anti-seismic reinforcing structure for a door-shaped frame, the door-shaped frame comprising two frame columns arranged at intervals and a frame beam connected at the top of the two frame columns, the anti-seismic reinforcing structure comprising:

[0005] Two prefabricated columns, the two prefabricated columns being respectively connected to the opposite inner sides of the two frame columns, each prefabricated column comprising a first steel core and a first concrete poured outside the first steel core, the top of the first steel core extending out of the first concrete and forming a first extension section, the first extension section being supported at the bottom of the frame beam and connected to the frame beam;

[0006] A prefabricated beam, the prefabricated beam comprising a second steel core and a second concrete poured outside the second steel core, both ends of the second steel core extending out of the second concrete and forming two second extension sections, the second concrete being supported at the bottom of the frame beam, and the two second extension sections being respectively connected to the two first extension sections;

[0007] Third concrete, the third concrete being poured at the first extension section and the second extension section.

[0008] The further improvement of the assembly type anti-seismic reinforcing structure for the door-shaped frame lies in that a plurality of anchor bars are connected between the prefabricated column and the corresponding frame column, corrugated pipes for one-to-one corresponding insertion of the plurality of anchor bars are connected in the prefabricated column in a vertical and spaced manner, the corrugated pipes are arranged along the horizontal direction and penetrate through the prefabricated column, the frame column is provided with insertion holes for insertion of the corresponding anchor bars at positions opposite to each of the corrugated pipes, and binders are poured in all the corrugated pipes and the corresponding insertion holes.

[0009] The further improvement of the assembly type anti-seismic reinforcing structure for the door-shaped frame lies in that the first connecting plate is connected to the bottom of the first steel core, the first connecting plate extends out of the projection range of the first concrete and is formed with an extension plate, the first connecting plate is connected to the ground through a first bolt, and a first connecting hole for the first bolt is formed in the extension plate.

[0010] The further improvement of the assembly type anti-seismic reinforcing structure for the door-shaped frame lies in that the second connecting plate is connected to the top of the first extension section, the second connecting plate is connected to the frame beam through a second bolt, and a second connecting hole for the second bolt is formed in the second connecting plate.

[0011] The further improvement of the assembly type anti-seismic reinforcing structure for the door-shaped frame lies in that the third connecting plate is connected to both ends of the second steel core, the third connecting plate is connected to the first extension section through a third bolt, and a third connecting hole for the third bolt is formed in the third connecting plate and the first extension section.

[0012] The further improvement of the assembly type anti-seismic reinforcing structure for the door-shaped frame lies in that the prefabricated beam comprises two beam units and fourth concrete, each of the beam units comprises a steel core unit and a concrete unit poured outside the steel core unit, one end of the steel core unit extends out of the concrete unit to form the second extension section, the other end of the steel core unit extends out of the concrete unit to form a third extension section, the third extension sections of the two steel core units are connected through a connecting piece and jointly form the second steel core, and the fourth concrete is poured outside the two third extension sections, and the two concrete units and the fourth concrete jointly form the second concrete.

[0013] The further improvement of the assembly type anti-seismic reinforcing structure for the door-shaped frame lies in that the second steel core is an I-beam, the connecting piece comprises a fourth connecting plate and a fifth connecting plate, both ends of the fourth connecting plate are connected to the webs of the two third extension sections through fourth bolts respectively, and both ends of the fifth connecting plate are connected to the flange plates of the two third extension sections through fifth bolts respectively.

[0014] An anti-seismic reinforcing method for a door-shaped frame, comprising the steps of:

[0015] Step 1: providing the prefabricated anti-seismic reinforcing structure for the door-shaped frame as described above;

[0016] Step 2: connecting two prefabricated columns to the opposite inner sides of two frame columns respectively, and connecting a first extension section to a frame beam;

[0017] Step 3: hoisting a prefabricated beam to a designed construction position, supporting the second concrete of the prefabricated beam at the bottom of the frame beam, and connecting two second extension sections of the prefabricated beam to two first extension sections respectively;

[0018] Step 4: formwork and pouring of third concrete at the first extension section and the second extension section.

[0019] 9. The anti-seismic reinforcing method for a door-shaped frame according to claim 8, wherein the prefabricated beam comprises two beam units and fourth concrete, each of the beam units comprises a steel core unit and a concrete unit poured outside the steel core unit, one end of the steel core unit extends out of the concrete unit to form the second extension section, and the other end of the steel core unit extends out of the concrete unit to form a third extension section.

[0020] In the execution of the above-mentioned step 3, two third extension sections are connected by a connecting piece, and then two second extension sections are connected to two first extension sections respectively, and in the execution of the above-mentioned step 4, the fourth concrete is poured at two third extension sections.

[0021] Compared with the prior art, the advantages of the present application are that:

[0022] By using prefabricated columns and prefabricated beams to reinforce the structure of the door-shaped frame, the original structure is not damaged, no dust is generated during construction, normal production and life can be carried out at the same time of reinforcing construction, and the construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a structure front view of the prefabricated anti-seismic reinforcing structure for the door-shaped frame.

[0025] Figure 2A perspective view of a structure of the assembled anti-seismic reinforcing structure for the H-shaped frame according to the present application.

[0026] Figure 3 A front view of a prefabricated column of the assembled anti-seismic reinforcing structure for the H-shaped frame according to the present application.

[0027] Figure 4 A side view of a prefabricated column of the assembled anti-seismic reinforcing structure for the H-shaped frame according to the present application.

[0028] Figure 5 A top view of a prefabricated column of the assembled anti-seismic reinforcing structure for the H-shaped frame according to the present application.

[0029] Figure 6 A front view of a beam unit of the assembled anti-seismic reinforcing structure for the H-shaped frame according to the present application.

[0030] Figure 7 A top view of a beam unit of the assembled anti-seismic reinforcing structure for the H-shaped frame according to the present application.

[0031] In the figure: 1, frame column; 2, frame beam; 3, first concrete; 4, third concrete; 5, concrete unit; 6, fourth concrete; 7, first steel core; 8, corrugated pipe; 9, anchor bar; 10, first connecting plate; 11, second connecting plate; 12, second steel core; 13, third connecting plate; 14, fourth connecting plate; 15, fifth connecting plate; 16, first bolt; 17, second bolt; 18, third bolt; 19, fourth bolt; 20, fifth bolt; 21, first connecting hole; 22, second connecting hole; 23, third connecting hole; 24, fourth connecting hole; 25, fifth connecting hole. DETAILED DESCRIPTION

[0032] The present application is further explained by the following specific examples which set forth in detail certain illustrative embodiments illustrating the best modes presently contemplated. The present application, however, is not to be limited to these embodiments since changes and modifications therein can be made by those skilled in the art without departing from the spirit of the application.

[0033] The assembled anti-seismic reinforcing structure for the H-shaped frame and the anti-seismic reinforcing method thereof according to the present application will be further explained in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Please refer to Figures 1-7 As shown in the figure, the assembled anti-seismic reinforcing structure for the H-shaped frame comprises two frame columns 1 arranged at intervals and a frame beam 2 connected at the top of the two frame columns 1, and the anti-seismic reinforcing structure comprises:

[0035] two precast columns, two of the precast columns are connected to opposite inner sides of the two frame columns 1 respectively, each of the precast columns comprises a first steel core 7 and a first concrete 3 poured outside the first steel core 7, a top of the first steel core 7 extends out of the first concrete 3 and forms a first extension section, the first extension section is supported at a bottom of the frame beam 2 and connected to the frame beam 2;

[0036] a precast beam, the precast beam comprises a second steel core 12 and a second concrete poured outside the second steel core 12, two ends of the second steel core 12 extend out of the second concrete and form two second extension sections, the second concrete is supported at the bottom of the frame beam 2, and the two second extension sections are connected to the two first extension sections respectively;

[0037] a third concrete 4, the third concrete 4 is poured at the first extension section and the second extension section.

[0038] By using the precast column and the precast beam to reinforce the door-shaped frame structure, the original structure is not damaged, no dust is generated during construction, normal production and life can be carried out at the same time of reinforcement construction, and the construction efficiency is improved.

[0039] Specifically, the width of the first concrete is matched with the width of the frame column 1; the width of the second concrete is matched with the width of the frame beam 2.

[0040] Preferably, the precast column and the corresponding frame column 1 are connected through a plurality of anchor bars 9, the precast column is vertically and spacedly connected with a corrugated pipe 8 for one-to-one insertion of the plurality of anchor bars 9, the corrugated pipe 8 is arranged along the horizontal direction and penetrates through the precast column, the frame column 1 is provided with a insertion hole for insertion of the corresponding anchor bar 9 at a position opposite to each corrugated pipe 8, and a bonding agent is poured in all the corrugated pipes 8 and the corresponding insertion holes.

[0041] By arranging the anchor bar and the bonding agent, the precast column is connected with the frame column 1, and the connection stability is improved.

[0042] Specifically, the two flange plates of the first steel core 7 are provided with through holes for insertion of the corrugated pipe 8.

[0043] When the precast column is manufactured in the factory, the corrugated pipe 8 with a design width matched with the first concrete 3 is inserted into the two through holes, the pipe opening of the corrugated pipe 8 is temporarily plugged, the first concrete 3 is poured after the formwork is erected, and the pre-buried corrugated pipe 8 is completed.

[0044] Preferably, the first steel core 7 is connected with a first connecting plate 10, the first connecting plate 10 extends out of the projection range of the first concrete 3 and is formed with an extension plate, the first connecting plate 10 is connected with the ground through a first bolt 16, and the extension plate is provided with a first connecting hole 21 for the first bolt 16.

[0045] By arranging the extension plate, the first concrete 3 does not block the first connecting plate 10 when the prefabricated column is supported on the ground, so that there is no installation space for the first bolt.

[0046] Preferably, the top of the first extension section is connected with a second connecting plate 11, the second connecting plate 11 is connected with the frame beam 2 through a second bolt 17, and the second connecting plate 11 is provided with a second connecting hole 22 for the second bolt 17.

[0047] By arranging the second connecting plate 11 and the second bolt 17, the first extension section is connected with the frame beam 2, and the connection stability is improved.

[0048] Specifically, the first steel core 7 is an I-beam.

[0049] Preferably, the two ends of the second steel core 12 are connected with a third connecting plate 13, the third connecting plate 13 is connected with the first extension section through a third bolt 18, and the third connecting plate 13 and the first extension section are provided with a third connecting hole 23 for the third bolt 18.

[0050] Preferably, the prefabricated beam comprises two beam units and a fourth concrete 6, each of the beam units comprises a steel core unit and a concrete unit 5 poured outside the steel core unit, one end of the steel core unit extends out of the concrete unit 5 to form the second extension section, the other end of the steel core unit extends out of the concrete unit 5 to form a third extension section, the third extension sections of the two steel core units are connected through a connecting piece and jointly form the second steel core 12, and the fourth concrete 6 is poured outside the circumferences of the two third extension sections, and the two concrete units 5 and the fourth concrete 6 jointly form the second concrete.

[0051] Specifically, when hoisting the prefabricated beam, an electric hoist is installed on the frame beam 2 to hoist the two beam units.

[0052] Since the prefabricated beam has a large span, it is difficult to hoist and prone to shear failure during hoisting. By dividing the prefabricated beam into two beam units and hoisting them separately, the connection stability of the structure and the construction safety are ensured.

[0053] Specifically, the third concrete and the fourth concrete are both ultra-high performance concrete.

[0054] By setting the ultra-high performance concrete, the pouring bonding effect is improved.

[0055] Preferably, the second steel core 12 is an I-beam, the connecting member includes a fourth connecting plate 14 and a fifth connecting plate 15, both ends of the fourth connecting plate 14 are connected to the webs of the two third extension sections by fourth bolts 19 respectively, and both ends of the fifth connecting plate 15 are connected to the flange plates of the two third extension sections by fifth bolts 20 respectively.

[0056] Specifically, fourth connecting holes 24 are formed in the fourth connecting plate 14 and the webs of the third extension sections for the fourth bolts 19 to pass through; and fifth connecting holes 25 are formed in the fifth connecting plate 15 and the flange plates of the third extension sections for the fifth bolts 20 to pass through.

[0057] Specifically, the fifth connecting plate 15 is connected to both flange plates of each third extension section.

[0058] An anti-seismic reinforcing method for a H-shaped frame, comprising the steps of:

[0059] Step 1: providing the prefabricated anti-seismic reinforcing structure for a H-shaped frame described above;

[0060] Step 2: connecting two prefabricated columns to the opposite inner sides of two frame columns 1 respectively, and connecting the first extension sections to the frame beams 2;

[0061] Step 3: hoisting the prefabricated beam to the designed construction position, supporting the second concrete of the prefabricated beam at the bottom of the frame beam 2, and connecting the two second extension sections of the prefabricated beam to the two first extension sections respectively;

[0062] Step 4: formwork is set at the first extension sections and the second extension sections, and the third concrete 4 is poured.

[0063] Preferably, the prefabricated beam includes two beam units and fourth concrete 6, each beam unit includes a steel core unit and a concrete unit 5 poured outside the steel core unit, one end of the steel core unit extends out of the concrete unit 5 to form the second extension section, and the other end extends out of the concrete unit 5 to form a third extension section;

[0064] When performing the above-mentioned step 3, the two third extension sections are connected by the connecting member first, and then the two second extension sections are connected to the two first extension sections respectively; when performing the above-mentioned step 4, the fourth concrete 6 is poured at the two third extension sections.

[0065] It needs to be explained that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the defined conditions that the present application can be implemented, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the present application can produce, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" and the like in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present application, the change or adjustment of the relative relationship, without substantially changing the technical content, is also regarded as the scope of the present application.

[0066] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present application, without departing from the content of the technical solution of the present application, still falls within the scope of the technical solution of the present application.

Claims

1. A prefabricated seismic reinforcement structure for a portal frame, the portal frame comprising two spaced-apart frame columns and a frame beam connecting the tops of the two frame columns, characterized in that, The seismic reinforcement structure includes: Two precast columns are respectively connected to the inner sides of the two frame columns. Each precast column includes a first steel core and a first concrete poured outside the first steel core. The top of the first steel core extends upward from the first concrete and forms a first extension section. The first extension section is supported at the bottom of the frame beam and connected to the frame beam. A precast beam includes a second steel core and a second concrete poured outside the second steel core. Both ends of the second steel core extend out of the second concrete to form two second extension segments. The second concrete supports the bottom of the frame beam. The two second extension segments are respectively connected to two first extension segments. The precast beam also includes two beam units and a fourth concrete. Each beam unit includes a steel core unit and a concrete unit poured outside the steel core unit. One end of the steel core unit extends out of the concrete unit to form a second extension segment, and the other end extends out of the concrete unit to form a third extension segment. The third extension segments of the two steel core units are connected by connectors and together form the second steel core. The fourth concrete is poured on the outer periphery of the two third extension segments. The two concrete units and the fourth concrete together form the second concrete. The third concrete is poured at both the first extension and the second extension.

2. The prefabricated seismic reinforcement structure for a portal frame as described in claim 1, characterized in that, The precast column is connected to the corresponding frame column by multiple anchor bars. Corrugated pipes are vertically spaced inside the precast column for inserting the anchor bars one by one. The corrugated pipes are arranged horizontally and pass through the precast column. The frame column has a hole for inserting the corresponding anchor bar at the position of each corrugated pipe. All corrugated pipes and corresponding holes are filled with adhesive.

3. The prefabricated seismic reinforcement structure for a portal frame as described in claim 1, characterized in that, The bottom of the first steel core is connected to a first connecting plate, which extends beyond the projection range of the first concrete and forms an extension plate. The first connecting plate is connected to the ground by a first bolt, and the extension plate has a first connecting hole for the first bolt to pass through.

4. The prefabricated seismic reinforcement structure for a portal frame as described in claim 1, characterized in that, The top of the first extension section is connected to a second connecting plate, which is connected to the frame beam by a second bolt. The second connecting plate has a second connecting hole through which the second bolt passes.

5. The prefabricated seismic reinforcement structure for a portal frame as described in claim 1, characterized in that, Both ends of the second steel core are connected to a third connecting plate. The third connecting plate is connected to the first extension section by a third bolt. Both the third connecting plate and the first extension section are provided with a third connecting hole for the third bolt to pass through.

6. The prefabricated seismic reinforcement structure for a portal frame as described in claim 1, characterized in that, The second steel core is an I-beam. The connecting member includes a fourth connecting plate and a fifth connecting plate. The two ends of the fourth connecting plate are respectively connected to the web plates of the two third extension sections by fourth bolts. The two ends of the fifth connecting plate are respectively connected to the flange plates of the two third extension sections by fifth bolts.

7. A seismic reinforcement method for portal frame structures, characterized in that, Including the following steps: Step 1: Provide the prefabricated seismic reinforcement structure for the portal frame as described in claim 1; Step 2: Connect the two precast columns to the opposite inner sides of the two frame columns respectively, and connect the first extension section to the frame beam; Step 3: Hoist the precast beam to the designed construction position, so that the second concrete of the precast beam is supported at the bottom of the frame beam. First, use connectors to connect the two third extension sections, and then connect the two second extension sections of the precast beam to the two first extension sections respectively. Step 4: Erect formwork and pour third concrete at the first extension section and the second extension section, and erect formwork and pour fourth concrete at the two third extension sections.

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