KR101266737B1 - Construction method of modular unit structure and base - Google Patents

Abstract

PURPOSE: A connecting member for connecting a modular unit structure and foundation concrete and a construction method of a foundation in the modular unit structure using the same are provided to solve the flatness problem due to the torsion or rising and to simply estimate the horizontal error in the construction field. CONSTITUTION: A connecting member(30) for connecting a modular unit structure and foundation concrete comprises a plate(310), a mortar injection hole(320), an anchor bolt connecting hole(330), a column fixing bolt(340), and a beam fixing bolt(350). The plate includes a regular thickness in a rectangular shape, and the mortar injection hole penetrates the plate. The anchor bolt connecting hole is formed in the installation position of an anchor bolt after actual measurement in a construction field by penetrating the plate. The column fixing bolt penetrates to the upper part of the plate in a connection position of a column and is welded on a lower surface of the plate. The beam fixing bolt penetrates the upper part of the plate and is welded on the lower surface of the plate.

Description

Connecting member for joining modular unit structure and basic concrete and construction method of modular unit structure using same {Construction method of modular unit structure and base}

The present invention relates to a connection member for coupling the modular unit structure and the foundation concrete and a method for constructing the basic concrete of the modular unit structure using the same, and more particularly, it is possible to correct vertical errors only by shangdong of the nut coupled to the anchor bolt. In addition, since it is possible to correct the smoothness such as torsion or rise, and to correct the horizontal error by expanding the drilled coupling hole after actual measurement in the field, it is possible to correct the horizontal error that appears when directly coupling the modular unit to the foundation. There is also an effect that can reduce the problem, and since the construction can be simply performed using only the connection members manufactured in the factory, the connection member for combining the modular unit structure and the foundation concrete, which can improve the field assembly workability of the modular unit column and Foundation concrete of modular unit structure using it It is about a construction method.

Construction method of joining the steel column and the foundation concrete can be classified into a fixed purchase method, a movable purchase method, a later purchase method (chemical method), etc. according to the method of embedding the anchor bolt into the foundation concrete.

The fixed embedding method is a method of purchasing anchor bolts into the concrete when the foundation concrete is formed. The movable embedding method surrounds the anchor bolts with cylindrical steel sheets or styrofoam so that the heads of the anchor bolts can be adjusted. The position of the bolt can be adjusted, and the later embedding method is to make a separate formwork on the anchor bolt installation site before concrete laying, and then fix the anchor bolt with chemical products after concrete laying, or drill the hole after pouring concrete. The anchor bolt is fixed with chemical products after the anchor bolt is installed.

In this way, the anchor bolts are embedded in the foundation concrete, and then the order of installing the steel pillars is the same. The base plate coupled to the bottom of the steel pillars is coupled to penetrate through the anchor bolts and exposed to the upper surface of the base plate. After fastening the nut to the anchor bolt, it proceeds in the order of injecting and fixing non-shrink mortar between the base concrete upper surface and the base plate.

The basic concrete construction of the modular unit is similar to the existing steel frame method, but since the mortar injection work is not carried out after the piping work in the pre-assembled state like the steel frame method, the modular foundation construction is performed because the main assembly is carried out between the modular units. Error management is very important.

Most of the errors related to the basic concrete construction of modular units are based on the steel management allowances of the standard specification of building construction. (Vertical error), and smoothness error, managed not to exceed ± 3.0mm for horizontal and vertical errors, and the limit tolerance is ± 5.0mm. In the case of smoothness, the length of one side of the base plate should be L / 1,000 or less. In particular, it is desirable that the torsion, rise and thickness errors not exceed ± 0.5 mm to enable coplanar finish when joining the modular units.

However, when constructing the basic concrete of the modular unit similar to the existing steel frame method, there is a problem that can not properly accommodate the construction error. In other words, in the case of the movable purchase method, the horizontal error may be accommodated, but the anchor bolt may be bent due to the adjustment of the position, and the load capacity may be reduced. In the case of the fixed embedding method, there is a problem that there is no way to correct the horizontal error, there was also a problem that it is impossible to check whether the mortar is filled when injecting the mortar from the side.

As a background technology of the present invention, there is a Korean Patent Application Publication No. 2012-0035992 'The basic construction structure of the modular building and dry construction method using the same' (Patent Document 1).

In the background art, as shown in FIG. 6, a plurality of PC pillars 20 are disposed at predetermined intervals on the floor concrete 10 formed on the ground formed with the trench, and each PC pillar 20 is disposed between the PC walls 20. In the basic construction structure of the modular building in which 30 is mounted, the bottom surface of the concrete 10 has a mounting groove 11 on which the pillars 20 are seated, and the position of the PC wall 30 is fixed. Guide pins 12 are provided for protruding; Guide grooves 32 are formed on the bottom surface of the PC wall 30 corresponding to the guide pins 12; Connection pins are formed on both side walls of the PC wall 30. 33 is configured to be rotatable about the hinge shaft 34 therein; a groove 21 is formed on the sidewall surface of the PC pillar 20 corresponding to the connecting pin 33 and the groove 21 is formed. There is a locking rod 22 is configured to be hooked to the connecting pin 33 It proposes the basic construction of modular buildings structures "as Gong.

However, the background art shows the effect of improving the construction efficiency of the foundation part because the building foundation structure is manufactured in the factory in a standardized form, and thus mobile assembly is performed on the site, but it is still difficult to converge construction errors when joining the foundation concrete concrete. There was a problem.

The present invention can not properly converge the construction error when the conventional method of constructing the connection between the steel column and the foundation concrete concrete to the basic concrete construction method of the modular unit, and also for the horizontal load at the joint between the modular unit column and the base concrete. This is to solve the problem that it cannot secure enough strength.

Korean Laid-Open Patent No. 2012-0035992 'Basic Construction Structure of Modular Building and Drying Method Using It'

The present invention can not only adjust the vertical error, but also to solve the problem of smoothness caused by torsion or rise, and to provide a modular unit structure and a connection member for foundation concrete joining, which can simply converge horizontal errors in the field. The purpose.

Another object of the present invention is to provide a method for constructing a concrete foundation of a modular unit structure in which construction errors can be easily converged using only a connecting member.

The present invention is a connection member which is installed between the lowermost column of the modular unit structure and the base concrete to couple the modular unit structure and the pillar, which is manufactured in the factory, the plate having a constant thickness in a rectangular shape; A mortar injection hole formed through the plate; And a column fixing bolt penetrating the plate to a portion to which the column is coupled, protruding to the top of the plate, and being welded to the bottom surface of the plate. To provide a connection member for coupling the modular unit structure and the base concrete, characterized in that consisting of anchor bolt coupling holes drilled in the field through the plate corresponding to the anchor bolt installation position after the actual measurement.

In addition, the connecting member is coupled to the modular unit structure, the coupling between the modular unit structure and the foundation concrete, characterized in that the beam fixing bolt coupled to the lower surface of the plate is further installed through the plate to protrude to the upper portion of the plate is coupled. To provide a connecting member.

In addition, the coupling member has a "+" shape of a flat cross-section through the plate to protrude to the upper part of the plate is coupled to the modular unit structure, characterized in that the coupling piece is configured to be welded from the lower surface of the plate further installed To provide a connection member for.

In addition, the connecting member is a beam connecting coupling piece so that the four beam connecting coupling pieces at the top of the plate are formed at a right angle to each other, and each beam connecting coupling piece is formed at a predetermined distance away from the center of the plate, so as to protrude. Providing a connection member for coupling the modular unit structure and the foundation concrete, characterized in that the projecting through the upper part of the plate and welded to the beam connecting coupling piece from the lower surface of the plate.

In addition, (a) fastening the height adjustment nut to the anchor bolt embedded in the foundation concrete; (b) Prepare the plate, and through the plate to drill the mortar injection hole, the column fixing bolt is inserted through the plate to the part to be combined with the modular unit column to protrude to the top of the plate and then protruded on the bottom of the plate Prefabricating the connection member by welding the column fixing bolts; (c) drilling the anchor bolt coupling hole in the plate in the field corresponding to the position of the anchor bolt embedded in the foundation concrete; (d) adjusting the vertical error of the connection member by using a nut coupled to the anchor bolt after installing the connection member by inserting the anchor bolt into the anchor bolt coupling hole, and coupling the anchor bolt to the plate; (e) installing formwork between the plate and the foundation concrete and injecting non-contraction mortar through the mortar injection hole; And (f) removing the formwork and fixing the column fixing bolts of the connection member to penetrate the lower surface of the modular unit column to assemble the modular unit structure to the foundation concrete. To provide a method.

In addition, the basic construction of the modular unit structure, characterized in that the beam fixing bolt to be further coupled to the lower surface of the plate by penetrating through the plate to the upper portion of the plate to the portion to which the beam of the modular unit is coupled in step (b) To provide a method.

In addition, in step (b), the coupling piece having a flat cross section having a “+” shape passes through the plate and protrudes to the upper part of the plate to be welded at the lower surface of the plate, and in step (f), the coupling piece is adjacent to the modular unit structure. It is intended to provide a basic construction method of a modular unit structure, characterized in that inserted and coupled between the pillar and the pillar of the modular unit.

In addition, in the step (b), the connecting member is formed so that the four beam connecting coupling pieces are formed at right angles to each other at the upper portion of the plate, and each beam connecting coupling piece is formed at a predetermined distance from the center of the plate so as to have a protruding shape. The connecting coupling pieces penetrate the plate to protrude to the upper part of the plate, and weld-bond the connecting piece for beam connection at the lower surface of the plate, and in step (f), each joining piece of the beam and beam of the neighboring modular unit of the modular unit structure It is intended to provide a method of basic construction of a modular unit structure, characterized in that inserted and coupled between.

The basic concrete construction method of the modular unit structure of the present invention can not only correct the vertical error by the shanghaidong of the nut coupled to the anchor bolt, but also can correct the smoothness, such as torsion or rise, and after drilling in the field Since the horizontal error can be corrected by the coupling hole, it is possible to reduce the problems of the existing technology regarding the horizontal error that occurs when the modular unit is directly coupled to the foundation. Since the construction is possible, the field assembly workability of the modular unit pillar is improved, which is very useful for shortening the air.

In addition, the mortar is injected from the upper portion of the connecting member was also effective to check whether the filling of mortar,

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1A is a perspective view of a first embodiment of a modular unit structure and a connection member for foundation concrete concrete joining according to the present invention.
FIG. 1B is a cross-sectional view taken along line AA of FIG. 1A.
Figure 2a is a perspective view of a second embodiment of the modular unit structure and the connection member for the foundation concrete concrete according to the present invention.
FIG. 2B is a cross-sectional view along the line BB of FIG. 2A.
Figure 3a is a perspective view of a third embodiment of the modular unit structure and the connection member for the foundation concrete concrete according to the present invention.
3B is a cross-sectional view taken along line CC of FIG. 3A.
Figure 3c is a cross-sectional view showing a coupling state of the modular unit structure constructed by using the third embodiment of the connecting member.
Figure 4 is a construction sequence diagram schematically showing a basic concrete construction method of the modular unit structure according to the present invention.
5 is a cross-sectional view showing a bonding state of the modular unit structure and the foundation concrete after being constructed in accordance with the present invention.
6 is a state diagram of separation of the conventional foundation structure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

 Hereinafter, the technical structure of the present invention will be described in detail with reference to the preferred embodiments.

1A is a perspective view of a first embodiment of a modular unit structure and a connection member for foundation concrete joining according to the present invention, and FIG. 1B is a cross-sectional view taken along the line A-A of FIG. 1A.

1A and 1B, the modular unit structure and the connection member 30 for connecting the foundation concrete according to the first embodiment of the present invention have a plate shape having a constant thickness and a plate 310 and penetrate the plate 310. Mortar injection hole 320 and the anchor bolt coupling hole 330 to be drilled in the field through the plate 310 corresponding to the installation position of the anchor bolt 210 after the field measurement, and the column 110 is coupled to It is composed of a column fixing bolt 340 is projected to the upper portion of the plate 310 to penetrate the plate 310 and welded from the lower surface of the plate 310.

The plate 310 has a rectangular shape having a constant thickness, and its size and thickness are determined so that the load acting on the modular unit structure can be safely transmitted to the anchor bolt. Although the plate 310 is illustrated as having a rectangular shape in the drawing, the shape of the plate 310 is not limited thereto.

The anchor bolt coupling hole 330 is formed through the plate 310 at the position where the anchor bolt 210 is to be coupled after being measured at the installation site, the diameter of the hole can be easily inserted into the anchor bolt 210 What is necessary is to have a size, preferably smaller than the outer diameter of the nut 220 is coupled to the anchor bolt 210 for height adjustment of the connecting member 30 is formed larger than the diameter of the anchor bolt 210.

Therefore, after the anchor bolt 210 is inserted into the anchor bolt coupling hole 330, the anchor bolt 210 is welded through the gap between the anchor bolt coupling holes 330 so that the weld meat does not protrude upward of the plate 310. The pillar 110 of the modular unit can be coupled to be in close contact with the plate 310.

The upper part of the plate 310 is coupled to the pillar fixing bolt 340 protrudes to each of the circumferential portion of the modular unit structure, that is, the lower end of the pillar 110. The pillar fixing bolt 340 is not configured to weld to the upper surface of the plate 310, and penetrates the hole through the plate 310, and the pillar fixing bolt 340 passes through the hole to the upper portion of the plate 310. To protrude and to weld by fixing the column fixing bolt 340 in the lower surface of the plate (310).

The pillar fixing bolt 340 is not directly welded to the upper surface of the plate 310 in this way, when the direct coupling to the upper surface of the plate 310 due to the thickness of the weld neck modular unit structure and plate 310 This is because gaps are generated between the gaps, and the gaps are not filled with mortar, so that the load on the upper part is transferred to the weld neck, resulting in structural instability.

Therefore, as shown in FIG. 1B, the pillar fixing bolt 340 penetrates from the lower portion of the plate 310 to the upper portion so that the welding is performed on the lower surface of the plate 310, and the lower surface of the plate 310. To join by welding. At this time, the column fixing bolt 340 is protruded both the top and bottom of the plate 310, the portion protruding to the bottom is configured so as not to protrude beyond the length required for welding, if necessary to the bottom of the plate 310 It can be prevented from protruding.

The pillar fixing bolt 340 may be configured with up to four modular units 10 seated on the upper portion of the plate 310, and thus four pillars 110 may be gathered and positioned, thus, the pillar 110. Up to four pillars may be configured by respectively configuring the fixing bolts 340 at the lower end portions thereof.

The mortar injection hole 320 may be formed to penetrate the plate 310 in a portion where the anchor bolt coupling hole 330 and the column fixing bolt 340 of the plate 310 are not formed. Mortar injection hole 320 may be formed in the center portion of the plate 310, as shown, may be additionally formed separately in the side portion according to the situation. At this time, the mortar injection hole 320 is preferably configured to be symmetrical without biasing to one side in the plate 310 in a plane.

The mortar injection hole 320 allows the mortar to be injected through the mortar injection hole 320 from the upper portion of the plate 310, so that the mortar injection state can be confirmed, and the injection of the mortar can be prevented from being injected unevenly. do.

In addition, the upper portion of the connection member 30 can be configured to additionally the beam fixing bolt 350 in the same structure as the column fixing bolt 340. That is, if the column fixing bolt 340 serves to fix the lower end of each pillar 110 of the modular unit structure, the beam fixing bolt 350 to fix the lower beam 120 coupled to each pillar 110. Role to make the bond more robust. That is, protruding to the end position of the beam 120 of the modular unit 10 to be coupled to the beam 120 so that the end side of the lower beam 120 is coupled.

Beam fixing bolt 350 is protruded to the upper portion of the plate 310 through the plate 310 and the same as the column fixing bolt 340 to be welded to join in the lower surface of the plate (310).

Figure 2a is a perspective view of a second embodiment of a modular unit structure and a connection member for foundation concrete concrete joining according to the present invention, Figure 2b is a cross-sectional view along the line B-B of Figure 2a.

As shown in FIG. 2A, the connection member 30 according to the present embodiment further combines the coupling piece 360 having a flat cross section to protrude to the top of the plate 310.

Coupling piece 360 is formed so that the flat cross-section has a "+" shape, the coupling piece 360 is inserted between the pillar 110 and the pillar 110 of the neighboring modular unit 10 of the modular unit structure and By being coupled to the pillar 110 through a bolt or the like, it is possible to further strengthen the bonding between the modular unit to increase the strength.

At this time, as shown in Figure 2b, the coupling piece 360 is to penetrate the plate 310 to protrude to the upper portion of the plate 310, the coupling piece 360 is fixed on the lower surface of the plate 310 You can do that.

For the same reason as the pillar fixing bolt 340, the beam fixing bolt 350 is to combine the coupling piece 360 in the form penetrating through the plate 310 in order to create a welding neck on the lower surface of the plate (310).

Figure 3a is a perspective view of a third embodiment of a connecting unit for joining the modular unit structure and the foundation concrete concrete according to the present invention, Figure 3b is a cross-sectional view along the line CC of Figure 3a, Figure 3c is a third embodiment of the connecting member A cross-sectional view showing the coupling state of the modular unit structure constructed by using.

As shown in Figure 3a, the connecting member 30 according to the present embodiment has a flat cross section + shape, but each beam connection coupling piece (360a) in a shape spaced apart from the center of the plate 310 by a certain distance The coupling piece 360a is further coupled to protrude to the top of the plate 310.

Beam connecting coupling piece 360a is spaced apart from the center of the plate 310 by a predetermined distance, the distance is spaced apart by the thickness of the cross section of the column 110, the beam connecting piece 360a is plate 310 It is to be sandwiched between the beam 120 and the beam 120 of each modular unit 10 of the modular unit structure located at the top of the.

At this time, as shown in Figure 3b, the beam connecting coupling piece (360a) to pass through the plate 310 to protrude to the upper portion of the plate 310, on the lower surface of the plate 310 coupling piece ( 360a) may be fixed.

For the same reason as the pillar fixing bolt 340 and the beam fixing bolt 350, in order to form a weld neck on the lower surface of the plate 310, the coupling piece 360a for beam connection is formed in the form of penetrating the plate 310. It is.

As shown in FIG. 3C, the beam connecting coupling piece 360a is configured to protrude upward from the plate 310 in a rectangular plate shape so that the beam connecting coupling piece 360a is adjacent to the modular unit structure. It is inserted between the beam 120 and the beam 120 of the unit 10 and coupled to the beam 120 through a bolt or the like.

When the coupling piece is inserted between the pillar 110 and the pillar 110, it is difficult to couple the bolts through the pillar 110, so that an opening (mouse hole) must be separately formed at the lower end of the pillar 110 to be coupled. In the embodiment, the beam connection coupling piece 360a between the beam 120 and the beam 120 is configured to insert the bolts through the abdomen of the beams 120 and 120, and thus, the pillar 110. Not only does not need to form a separate opening (mouse hole) for fixing the bottom of the) but also the bonding process is very easy.

Figure 4 is a construction sequence diagram schematically showing a basic concrete construction method of the modular unit structure according to the present invention.

Basic concrete construction method of the modular unit structure according to the present invention, (a) fastening the height adjustment nut 220 to the anchor bolt 210 is embedded in the foundation concrete 20; (b) Preparing the plate 310, and through the plate 310 to drill the mortar injection hole 320, and through the plate 310 to the portion coupled to the modular unit pillar 110 through the column fixing bolt ( Inserting the 340 and protruding to the upper portion of the plate 310, and pre-fabricating the connection member 30 by welding the column fixing bolt 340 protruding from the lower surface of the plate 310; (c) drilling the anchor bolt coupling hole 330 in the plate 310 at the site corresponding to the position of the anchor bolt embedded in the foundation concrete; (d) After the anchor bolt 210 is inserted into the anchor bolt coupling hole 330 to install the connecting member 30, the nut 220 coupled to the anchor bolt 210 of the connecting member 30 is used. Adjusting the vertical error and coupling the anchor bolt 210 to the plate 310; (e) installing a formwork between the plate 310 and the foundation concrete 20 and injecting non-contraction mortar through the mortar injection hole 320; (f) assembling the modular unit structure to the foundation concrete 20 by removing the formwork and allowing the column fixing bolt 340 of the connecting member 30 to be fixed through the lower surface of the pillar unit 110. It includes;

In general, the modular unit structure is made by stacking a plurality of modular units 10 vertically and horizontally, and the pillars 110 of the lowermost modular unit 10 are made by combining the foundation concrete 20, in the present invention When the lowermost column of the basic concrete 20 and the modular unit 10 structure is coupled using the connection member 30, each step will be described in detail as follows.

As shown in Figure 4a, first, the height adjusting nut 220 is fastened to the anchor bolt 210 embedded in the foundation concrete 20 ((a) step).

The anchor bolt 210 is installed in advance when manufacturing the foundation 20. The anchor bolt 210 serves to fix the connecting member 30 to be described later, so that the load acting on the modular structure of the upper portion can be smoothly transferred to the foundation concrete 20.

The height adjusting nut 220 is fastened to an end of the anchor bolt 210 exposed to the upper portion of the foundation concrete 20. Height adjustment nut 220 is configured to adjust the vertical error and smoothness of the connection member 30 to be described later. The height adjustment nut 220 is easy to modify the smoothness, because it is configured individually for each anchor bolt 210 and can be adjusted individually, it is possible to correct the vertical error.

The connection member 30 is manufactured in advance in the factory and only anchor bolt coupling holes are drilled in the field.

That is, as shown in Figure 4b, after preparing the plate 310, the mortar injection hole 320 may be drilled in advance to avoid the column fixing bolt 340, the anchor bolt coupling hole 330 to be bored in advance Since the column spacing of the modular unit structure manufactured by the factory is constant, fixing the column fixing bolts 340 fixed to the pillars makes the connection member 30 pre-fabricated in the factory (step (b)).

At this time, the upper portion of the connection member 30 may be further configured to the beam fixing bolt 350 in the same shape as the column fixing bolt 340. In addition, the connecting member 30 may be configured to further protrude the coupling piece 360 having a flat cross section having a "+" shape to the upper portion of the plate 310.

As shown in Figure 4c, the anchor bolt coupling hole 330 should be drilled after measuring the position of the anchor bolt 210 in the field for the convergence of the horizontal error. Although the anchor bolt 210 is fixed to the foundation reinforcement, the installation position may be changed by being separated from the design position due to the pressure during concrete pouring. Therefore, in accordance with the position of the actual anchor bolt 210 is installed in the field anchor bolt coupling holes in the connection member ((c) step).

When the anchor bolt coupling hole is drilled in the connection member 30, as shown in FIG. 4d, the connection member 30 is coupled to the foundation concrete 20 ((d) step).

When the anchor bolt 210 installed in the foundation concrete 20 is installed to be inserted into the anchor bolt coupling hole 330 of the connection member 30, the connection member 30 for height adjustment respectively coupled to the anchor bolt 210 The nut 220 is shaped to be supported, and in this state, the height adjusting nut 220 is moved up and down to adjust the smoothness error due to vertical error and torsion or rise.

After the adjustment of the error as described above, the coupling member 30 is coupled to the base concrete 20, the anchor bolt 210 and the plate 310 of the coupling member 30 by welding to join or the upper portion of the plate 310 In combination with the anchor bolt 210 using a nut.

As shown in FIG. 5, when the anchor bolt 210 and the plate 310 are welded to each other, the anchor bolt 210 protruding from the plate 310 may be cut to have an upper end of the anchor bolt coupling hole 330. Position the inside, and weld so as not to protrude from the upper end of the anchor bolt coupling hole 330, so that the weld neck is not exposed to the upper plate 310. When cutting the anchor bolt 210 it is preferable to cut so that the upper end of the anchor bolt 210 comes to the point of 1/2 of the height of the anchor bolt coupling hole 330. This is to ensure a space for generating a welding neck inside the anchor bolt coupling hole 330 while securing a portion that the upper end of the anchor bolt 210 is introduced into the anchor bolt coupling hole 330. When the cutting is completed, the connecting member 30 is inserted into the anchor bolt coupling hole 330 and the horizontal bolt is adjusted by the anchor bolt coupling hole 330. When the adjustment of the error is completed as described above, the coupling member 30 is coupled to the foundation concrete 30, and the anchor bolt 210 and the anchor bolt coupling hole 330 of the coupling member 30 are welded to each other in a downward position. . When cutting the anchor bolt 210, after correcting the error of the connection member 30 with the nut 220, the connection member 30 may be removed and cut.

Although not shown, when the anchor bolt 210 and the plate 310 are coupled using a nut, the anchor bolt 210 protrudes from the plate 310 and the nut is fastened to the protruding anchor bolt 210. Fix it. In this way, when the nut and the height adjusting nut 220 is coupled to the upper and lower portions of the plate 310, respectively, the double nut structure is coupled to the plate 310 and the anchor bolt 210 are coupled.

As shown in FIG. 4E, after coupling the connecting member 30 to the foundation concrete 20, formwork is installed between the plate 310 and the foundation concrete 20, and no shrinkage is made through the mortar injection hole 320. Inject mortar (step (e)).

The formwork is installed around the space formed between the base concrete 20 and the connecting member 30 and fixed, and then injects the mortar into the mortar injection hole 320 of the connecting member 30 to check whether the mortar is filled. While injecting.

As shown in Figure 4f, when the mortar is hardened to remove the formwork and to combine the modular unit structure on top of the connecting member 30 (f).

The modular unit structure is a structure formed by combining a plurality of modular units 10 horizontally or vertically. Accordingly, the lowermost column of the modular unit structure is fixed to the foundation concrete 20, and the column fixing bolt 340 of the connecting member 30 is fixed to penetrate through the lower surface of each column 110 of the modular unit structure. To couple (10) to the foundation concrete (20).

In this case, in order to facilitate assembly, an opening may be formed in the side portion of the lower end of each pillar 110 to facilitate welding or nut coupling when the pillar fixing bolt 340 and the pillar 110 are coupled to each other.

5 is a cross-sectional view showing a bonding state of the modular unit structure and the foundation concrete after being constructed in accordance with the present invention.

As shown in Figure 5, according to the present invention after adjusting the vertical error by the height adjusting nut (2) and after fixing the horizontal error by the anchor bolt fastening hole drilled on-site after the connection member 30 and the base concrete Filling the mortar between the (20), protruding to the upper portion of the connecting member 30 by the column fixing bolt 340 and the beam fixing bolt 350 is configured to each column 110 and beam 120 of the modular unit structure. ) Is combined and fixed.

The coupling pieces 360 and 360a may be further configured to protrude to the upper portion of the plate 310 in order to increase the load capacity, and the coupling pieces 360 and 360a may be connected to the pillars 110 of the adjacent modular unit 10. Between the pillars 110 or between the beams 120 and the beams 120 are inserted and coupled respectively.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

10: modular unit
20: foundation concrete
30:
110: Column
120: Bo
210: anchor bolt
220: height adjusting nut
310: Plate
320: mortar injection hole
330: anchor bolt coupling hole
340: pillar fixing bolt
350: beam fixing bolt
360: joining piece

Claims (8)

As a connecting member installed between the lowermost pillar of the modular unit structure and the foundation concrete to bond the modular unit structure and the pillar,
A plate 310 manufactured in a factory and having a predetermined thickness in a rectangular shape;
A mortar injection hole 320 formed through the plate 310;
The column 110 penetrates the plate 310 to the portion where the pillar 310 is coupled and protrudes to the upper portion of the plate 310 and welded from the lower surface of the plate 310 to fix the pillar to couple the pillar 110 and the plate 310. Bolt 340;
An anchor bolt coupling hole 330 which is drilled in the field by passing through the plate 310 corresponding to the anchor bolt 210 installation position after the field measurement; And
The beam 120 of the modular unit 10 is coupled to the portion of the modular unit 10 so as to penetrate the plate 310 and protrude to the upper portion of the plate 310 so as to be coupled to the lower surface of the plate 310. Beam fixing bolt 350 for coupling the 120 and the plate 310,
Four beam connection coupling pieces 360a are formed at right angles to each other at the upper portion of the plate 310, and each beam connection coupling piece 360a is positioned at a predetermined distance from the center of the plate 310 to protrude. The beam connecting coupling part 360a is configured to penetrate the plate 310 to protrude upward of the plate 310 and to weld-bond the connecting piece 360a at the lower surface of the plate 310. The connecting member for coupling the modular unit structure and the base concrete. delete delete delete (a) fastening the height adjustment nut 220 to the anchor bolt 210 embedded in the foundation concrete 20;
(b) Preparing the plate 310, and through the plate 310 to drill the mortar injection hole 320, and through the plate 310 to the portion coupled to the modular unit pillar 110 through the column fixing bolt ( Inserting the 340 to protrude to the upper portion of the plate 310 and then pre-fabricating the connection member 30 by welding the pillar fixing bolts 340 protruding from the lower surface of the plate 310;
(c) drilling the anchor bolt coupling hole 330 in the plate 310 at the site corresponding to the position of the anchor bolt embedded in the foundation concrete;
(d) After the anchor bolt 210 is inserted into the anchor bolt coupling hole 330 to install the connecting member 30, the nut 220 coupled to the anchor bolt 210 of the connecting member 30 is used. Adjusting the vertical error and coupling the anchor bolt 210 to the plate 310;
(e) installing a formwork between the plate 310 and the foundation concrete 20 and injecting non-contraction mortar through the mortar injection hole 320; And
(f) assembling the modular unit structure to the foundation concrete 20 by removing the formwork and allowing the column fixing bolt 340 of the connecting member 30 to be fixed through the lower surface of the pillar unit 110. ;;
In the step (b), the beam fixing bolt to be coupled to the bottom surface of the plate 310 so as to protrude to the upper portion of the plate 310 through the plate 310 to the portion to which the beam 120 of the modular unit 10 is coupled. Further installed 350, the connection member 30 is the four beam connection coupling pieces 360a at the top of the plate 310 to form a right angle to each other, each beam connection coupling piece 360a is a plate 310 The beam connecting coupling piece 360a penetrates the plate 310 and protrudes to the upper portion of the plate 310 so as to be formed at a predetermined distance from the center of the plate. Welding joints 360a of the beam connection,
The modular unit, characterized in that in step (f) the coupling pieces 360a for beam connection are inserted between the beam 120 and the beam 120 of the neighboring modular unit 10 of the modular unit structure to be coupled. Basic construction method of structure. delete delete delete

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