GRILLE BEAM STRUCTURE CONSTRUCTION METHOD FOR SEMICONDUCTOR FACTORY

Abstract

A grille beam structure construction method for a semiconductor factory is configured to perform construction of grille beams without installation of a separate beam mounting the grille beams and to simplify a joint between the grille beams by using studs for mounting of the grille beams and by integrating grille beam members to each other by bolt-fastening. The method includes installing columns, installing studs between the columns at predetermined intervals longitudinally and transversally, mounting grille beams above the columns and the studs, wherein each of the grille beams includes an rectangular-frame-shaped edge beam and the edge beam has a plurality of fastening holes, and matching the fastening holes between the grille beams and inserting bolts into the fastening holes, thereby integrating the grille beam.

Description

CROSS REFERENCE

The present application claims priority to Korean Patent Application No. 10-2022-0093319, filed Jul. 27, 2022, the entire contents of which is incorporated herein for all purposes by this reference.

BACKGROUND

The present invention relates generally to a grille beam structure construction method for a semiconductor factory. More particularly, the present invention relates generally to a grille beam structure construction method for a semiconductor factory, the grille beam structure construction method being configured to perform construction of grille beams without installation of a separate beam mounting the grille beams and to simplify a joint between the grille beams by using studs for mounting of the grille beams and by integrating grille beam members to each other by bolt-fastening, cast-in-place management can be carried out easily and construction quality can be easily secured by minimization of a wet-type construction, safety risk can be reduced by reduction of concrete pouring equipment and manpower, a construction period can be reduced by minimization of cast-in-place work, construction waste can be reduced by exclusion of the formwork installation and pouring, and a safe environment can be created by minimization and simplification of cast-in-place work.

Production facilities of a semiconductor factory are getting larger, and when a precast grille beam joint used for the semiconductor factory is constructed with reinforced concrete, a construction method of formwork→joint reinforcement→concrete pouring→curing is applied to the construction, a long construction period is required, and starting of follow-up work is delayed.

Furthermore, there is a risk of increasing safety risks when cast-in-place work involving concrete pouring equipment and multiple personnel is carried out, and during a curing period after concrete pouring, drying shrinkage may occur due to freezing damage in winter and rapid moisture evaporation in summer, so there was a risk of quality deterioration.

Specifically, in order to install a grille beam, a separate beam on which the grille beam is mounted must be installed, but road transport of the beam is impossible because the length of the beam is long, and there is a problem in that it is difficult to integrate members of the beam when the beam is manufactured as segments to overcome the length problem. Accordingly, there is a problem of an increase of a construction period.

Korean Patent No. 10-2033671-0000 “Grill beam structure of semiconductor factory” (Patent Document 1) was proposed as the related art of the present invention. In the related art, the grille beam structure of a semiconductor factory is proposed, the grille beam structure being characterized in that the structure includes studs, which are vertical columns, installed inside the semiconductor factory and stood at predetermined intervals in longitudinal and transverse directions, unidirectional beams each mounted to upper portions of two adjacent studs to connect the two studs to each other across the upper portions of the studs, and a rectangular grille beam installed in a form of filling a rectangular horizontal area formed by being surrounded the unidirectional beams, wherein a protruding step portion is formed on a side surface of each unidirectional beam and a recessed step portion is formed on a side surface of the grille beam, so that the grille beam is installed such that a lower surface of the step portion of each side surface of the grille beam is mounted to an upper surface of the step portion of the side surface of each unidirectional beam. A mortar is injected into both a gap between ends of two unidirectional beams assembled on each stud and a gap between the side surface of each unidirectional beam and each side surface of the grille beam, so that the unidirectional beams are jointed at the ends thereof and fixed, the unidirectional beams and the grille beam are jointed and fixed to each other. A plurality of vertical reinforcing bars are charged inside the stud in a longitudinal direction, and an upper end of each vertical reinforcing bar protrudes above the upper surface of each stud, and a vertical reinforcing bar insertion groove is formed on a lower surface of each unidirectional beam close to the end thereof to accommodate the upper end of each vertical reinforcing bar protruding above the upper surface of each stud, so that each vertical reinforcing bar is inserted into the vertical reinforcing bar insertion groove and thus the stud and the unidirectional beam are coupled to each other. Both of the unidirectional beams assembled on the stud are cut to form steps on upper edges of ends thereof, and when the ends of the unidirectional beams are close to each other in a row on the stud at a predetermined interval, as a mortar is injected into a space formed by the steps of the ends, the mortar is filled into the space, the gap between the two unidirectional beams, and the gap between the unidirectional beams and the grille beam and solidifies to couple the unidirectional beams and the grille beam to each other. The vertical reinforcing bar insertion groove is formed by penetrating a bottom of the step formed by cutting the end of each unidirectional beam, and the mortar filled into the space formed by the respective ends of the adjacent two unidirectional beams is filled into the inside space of the vertical reinforcing bar insertion groove, so that an inner circumferential surface of the vertical reinforcing bar insertion groove and an outer circumferential surface of the vertical reinforcing bar protruding above the stud are securely coupled to each other. A plurality of step-shaped trench grooves is formed on the upper surface of the protruding side step of each of the unidirectional beams in a longitudinal direction of each of the unidirectional beams, and the mortar injected into the gap between the grille beam and the unidirectional beams passes through horizontal contact surfaces, which are formed by the side steps in contact with other when each side step of the grille beam is mounted to the side step of each unidirectional beams, through the trench grooves and then is injected into an end of a vertical gap at a lower portion between the contact surfaces. Accordingly, the mortar is injected into all gaps between the unidirectional beams and the grille beam from the top to the bottom, so that the grille beam and the unidirectional beams are solidly coupled to each other.

However, the related art also had a problem in that the separate grille beam on which the grille beam is mounted must be installed in order to install the grille beam.

• Documents of Related Art: Korean Patent No. 10-2033671-0000 entitled “Grill beam structure of semiconductor factory”.

SUMMARY OF THE INVENTION

Accordingly, the present invention has been made keeping in mind the above problems occurring in the related art, and the present invention is intended to provide a grille beam structure construction method for a semiconductor factory, wherein construction of grille beams is possible without installation of a separate beam for mounting the grille beams so that a joint is simplified, a wet-type construction is minimized so that cast-in-place management is carried out easily and construction quality is easily secured, concrete pouring equipment and manpower are reduced so that a safety risk is reduced, cast-in-place work is minimized so that a construction period is reduced, formwork installation and concrete pouring are excluded so that amount of construction waste is reduced, and cast-in-place work is minimized and simplified so that a safe environment is created.

In order to achieve the above objective, according to one aspect of the present invention, there is provided a grille beam structure construction method for a semiconductor factory, the method including: installing columns; installing studs between one of the columns and another column at predetermined intervals in longitudinal and transverse directions; mounting grille beams, above the columns and the studs, wherein an rectangular-frame-shaped edge beam is arranged, and transverse members and longitudinal members intersect with each other to be grid-arranged in the edge beam, and the edge beam has a plurality of fastening holes penetrating horizontally therethrough; and matching the fastening holes between the grille beams to each other and inserting bolts into the fastening holes, thereby integrating the grille beams with each other.

The grille beams may maintain a space equal to or longer than a predetermined distance therebetween, and a non-shrinkage mortar may be filled into the space.

A backup member may be fitted into a lower end of the space where the grille beams are in contact with each other and a calking material may be used therein for sealing of the space.

A filling groove may be formed on a surface of the edge beam of each of the grille beams, the surface having the fastening holes, from an upper portion that is located at a predetermined height above a lower end to an upper end of the surface, and after the fastening of the bolts between the grille beams, a non-shrinkage mortar may be filled into the filling groove.

A bolt head seating groove may be formed on an inner surface of the edge beam while being recessed inward, the inner surface having each of the fastening holes, so that a bolt head of each of the bolts may be prevented from protruding outward after the fastening of the bolts.

An inner corner of the edge beam of each of the grille beams mounted on the studs may have an inner protrusion part so as to cover a corner of each of the studs completely.

An outer surface of the edge beam of each of the grille beams may be treated into a rough surface so that a friction force between the grille beams may increase when the grille beams are joined to each other.

Each of the studs may include a dowel bar such that the dowel bar may protrude upward to a predetermined length, each of the grille beams may have a through hole at a portion where the grill beam is mounted on each of the studs, the through hole may be formed by vertically penetrating through a location corresponding to a location of the dowel bar, and the grille beam may be mounted so that the dowel bar may be inserted into the through hole, and then a non-shrinkage mortar may be filled into the through hole.

The stud may have a recessed groove, and the recessed groove may be formed on an upper surface including the dowel bar to a predetermined depth, and the non-shrinkage mortar may be filled into both the through hole and the recessed groove at the same time.

A coupler connection groove may be formed on an upper surface of the edge beam, the upper surface having the through hole, by cutting the upper surface to a predetermined depth, so that an end of an upper reinforcing bar embedded in each of the grille beams may protrude toward the coupler connection groove to a predetermined length, and a cast-in-place fastening reinforcing bar may be located between upper reinforcing bars of adjacent grille beams among the grille beams, and opposite ends of the cast-in-place fastening reinforcing bar may be fastened to respective ends of the opposite upper reinforcing bars by using couplers, and then the non-shrinkage mortar may be filled into the coupler connection groove.

According to the present invention, the grille beam structure construction method for a semiconductor factory of the present invention is configured to allow the grille beam to be constructible without installation of a beam, which is provided to mount the grille beam, by using the studs to mount the grille beam, and by integrating the grille beam members with each other in the bolt fastening, so that the joint can be simplified and the construction period can be reduced.

Furthermore, when performing PC construction, since the time required for formwork installation/dismantling, reinforcement placing, concrete pouring and curing is unnecessary, early starting of a follow-up construction can shorten the construction period. With the fastening method in which the grille beam members are fastened to each other by the tie bolts and then are filled with the non-shrinkage mortar, it is possible to secure the high quality of construction by the easy construction method and the curing period reduction. The grille beams can be integrated by the fastening of the tie bolts between the grille beam members and the non-shrinkage mortar filling, so that the process of cast-in-place concrete pouring can be simplified and thus the construction period can be reduced.

Specifically, as described above, there are useful effects in that the cast-in-place management can be carried out easily and the construction quality can be easily secured by minimization of a wet-type construction, the safety risk can be reduced by reduction of concrete pouring equipment and manpower, the construction period can be reduced by minimization of cast-in-place work, construction waste can be reduced by exclusion of the formwork installation and pouring, and a safe environment can be created by minimization and simplification of cast-in-place work.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings in the specification will illustrate a preferred embodiment of the present invention, and provide an improved understood of the scope and spirit of the present invention with the detailed description of the present invention, so the present invention should not be construed as being limited only to the matters described in the accompanying drawings.

FIGS. 1A, 1B, and 1C are plan views schematically showing a grille beam structure construction method for a semiconductor factory of the present invention.

FIG. 2 is a perspective view showing a precast grille beam of the present invention.

FIG. 3 is a plan view showing the precast grille beam of the present invention.

FIG. 4 is a partially enlarged plan view showing an embodiment in which the precast grille beam of the present invention is constructed.

FIG. 5 is a sectional view taken along line A-A in FIG. 4.

FIG. 6A is a bottom view showing a joint between precast grille beams.

FIG. 6B is a plan view showing the joint between the precast grille beams.

FIGS. 7A and 7B are side sectional views showing the joint between the precast grille beams.

DETAILED DESCRIPTION OF THE INVENTION

Hereinbelow, the present invention will be described in detail with reference to an exemplary embodiment proposed in accompanying drawings, and the embodiment is described for illustrative purposes to provide a clear understanding and the present invention is not limited to the embodiment.

Hereinbelow, according to the exemplary embodiment, technical configuration of the present invention will be described in detail.

FIGS. 1A, 1B, and 1C are plan views showing a grille beam structure construction method for a semiconductor factory of the present invention schematically.

The grille beam structure construction method for a semiconductor factory of the present invention is configured to cradle grille beams 30 by using the studs 20 without installation of separate beams for cradling the grille beams 30, and to integrate the grille beams 30 with each other in a bolting manner to simplify a joint therebetween.

To this end, the present invention is configured to perform, as shown in FIG. 1A, installing of columns 10.

The installing of the columns 10 proceeds in the order of installing of anchor frames, placing of foundation concrete, and marking, and then the precast columns 10 are assembled to the foundation concrete.

After the installing of the columns, as shown in FIG. 1B, the studs 20 are installed between one of the columns 10 and another column 10 at predetermined intervals in longitudinal and transverse directions.

As shown in FIG. 1C, each of the studs 20 is installed at a location below a corner location where corners of all four grille beams 30 are coupled to each other so as to support the entire structure.

After the installing the studs 20, as shown 1C, the grille beams 30 is cradled above the columns 10 and the studs 20, and in the grille beams 30, a rectangular-frame-shaped the edge beam 330 is arranged and transverse members 310 and longitudinal members 320 intersect with each other to be grid-arranged in the edge beam 330, a plurality of fastening holes 332 is formed in the edge beam 330 to penetrate the edge beam 33 horizontally, and finally, the fastening holes 332 between the grille beams 30 match each other and bolts 34 are inserted into the fastening holes 332 to integrate the grille beams 30 with each other.

FIG. 2 is a perspective view showing the precast grille beam of the present invention. FIG. 3 is a plan view showing the precast grille beam of the present invention.

Each of the grille beams 30 consists of the rectangular-frame-shaped edge beam 330, and the transverse members 310 and the longitudinal members 320 intersecting with each other to form a grid shape in the edge beam 330.

Specifically, according to the present invention, the plurality of fastening holes 332 is formed in the edge beam 330 to penetrate through the edge beam horizontally to perform integration between the grille beams 30, and the bolts 34 may be fastened by passing through both the edge beam 330 of one grille beam 30 and the edge beam 330 of an adjacent grille beam 30.

FIG. 4 is a partially enlarged plan view showing an embodiment in which the precast grille beam of the present invention is constructed. FIG. 5 is a sectional view taken along line A-A in FIG. 4.

As shown in FIG. 5, in coupling between the grille beams 30, a space d equal to or longer than a predetermined distance is maintained between the grille beams 30 and a non-shrinkage mortar 334 is filled into the space d, so that coupling between the grille beams 30 can be performed by the bolts 340 and the non-shrinkage mortar 334. An outer surface of the edge beam 330 of each of the grille beams 30 is treated into a rough surface so that a friction force between the grille beams 30 increases when the grille beams 30 are joined to each other, thereby improving joining performance.

At this point, a backup member 350 is fitted into a lower end of the space d where the grille beams 30 are in contact with each other, and a calking material is used therein for sealing of the space d s, so that leakage of the non-shrinkage mortar 334 can be prevented.

Furthermore, a filling groove 333 is formed a surface of the edge beam 330 each of the grille beams 30, the surface having the plurality of fastening holes 332, from an upper portion a predetermined height above a lower end to an upper end of the surface. After fastening of the bolts 34 between the grille beams 30, the non-shrinkage mortar 334 is filled into the filling groove 333 so as to ensure that a bolt joint section is a space D wider than the space d between the two grille beams 30, and the non-shrinkage mortar 334 is filled, so that the joining performance and the filling groove 333 can serve as a shear key itself.

Specifically, according to the present invention, the grille beams 30 are fastened by the bolts 34 and the space d is ensured so that the non-shrinkage mortar 334 is filled thereinto, and a bolt head seating groove 336 is inward recessed on an inner surface of the edge beam 330, the surface having the plurality of fastening holes 332, so that a bolt head is prevented from protruding outward after fastening of each of the bolts 34, thereby excluding interference between the bolt head and a finishing member and an installed pipe (vacuum).

Furthermore, as shown in FIGS. 3 and 4, in each of the grille beams 30, inner corners of the edge beam 330 mounted to the studs 20 has inner protrusion parts 331 so as to cover corners of the studs 20 completely, thereby preventing collecting of foreign materials (dust) on an upper portion of the stud 20 in a clean room section.

FIG. 6A is a bottom view showing a joint between the precast grille beams. FIG. 6B is a plan view showing the joint between the precast grille beams. FIG. 7 is a side sectional view showing the joint between the precast grille beams.

Specifically, as shown in FIGS. 6A and 6B, the grille beams 30 are mounted to each of studs 20, and each of the studs 20 has dowel bars 260 protruding upward to a predetermined length, and each of the grille beams 30 has a through hole 339 formed by penetrating the grille beam 30 vertically at a location corresponding to each of the dowel bars 260 at a portion mounted to each of the studs 20. After the grille beams 30 is mounted such that each of the dowel bars 260 is inserted into the through hole 339, the non-shrinkage mortar 334 is filled into the through hole 339, so that a hanging length of each of the grille beams 30 can be ensured to the studs 20 without a bracket, and the safety during construction (removal prevention) can be ensured, and the structural performance can be ensured by restraining between the studs 20 and the grille beams 30.

Furthermore, as shown in FIG. 7, each of the studs 20 has a recessed groove 261 formed at a predetermined depth on the upper surface thereof with the dowel bars 260. Therefore, the non-shrinkage mortar 334 is filled into both the through hole 339 and the recessed groove 261 so that the jointing performance can be improved and the seismic performance can be improved.

According to the present invention, an upper reinforcing bar 370 embedded into an upper portion of each of the grille beams may be used in jointing of the grille beams 30, and at this point, as shown in FIGS. 6A, 6B, and 7, a coupler connection groove 337 is formed on the upper portion of the edge beam 330 at a predetermined depth in a cutting manner, and the upper portion having the through hole 339, an end of the upper reinforcing bar 370 embedded into each of the grille beams 30 protrudes toward the coupler connection groove 337 to a predetermined length. A cast-in-place fastening reinforcing bar 380 is located between upper reinforcing bars 370 of the adjacent grille beams 30 and opposite ends of the cast-in-place fastening reinforcing bar 380 are fastened to respective ends of opposite upper reinforcing bars 370 by using couplers 381, and then the non-shrinkage mortar 334 may be filled into the coupler connection groove 337.

Since the upper reinforcing bar 370 embedded in the grille beams 30 cannot be adjusted in length, in the embodiment, when the upper reinforcing bar 370 and another upper reinforcing bar 370 are connected to each other, the cast-in-place fastening reinforcing bar 380 is used to fasten the upper reinforcing bars 370 to each other so as to correct a joint length error and to easily fasten the upper reinforcing bars 370.

In other words, the cast-in-place fastening reinforcing bar 380 is located between the upper reinforcing bars 370 of the adjacent grille beams 30, and the opposite ends of the cast-in-place fastening reinforcing bar 380 are fastened to the respective ends of the upper reinforcing bars 370 by using the couplers 381.

At this point, in order to easily perform fastening of the couplers 381, the opposite ends of the cast-in-place fastening reinforcing bar 380 and the ends of the upper reinforcing bar 370 are treated in a screw thread processing.

As described above, the grille beam structure construction method for a semiconductor factory of the present invention is configured to allow the grille beam to be constructible without installation of a beam, which is provided to mount the grille beam, by using the studs to mount the grille beam, and by integrating the grille beam members with each other in the bolt fastening, so that the joint can be simplified and the construction period can be reduced. Furthermore, when performing PC construction, since the time required for formwork installation/dismantling, reinforcement placing, concrete pouring and curing is unnecessary, early starting of a follow-up construction can shorten the construction period. With the fastening method in which the grille beam members are fastened to each other by the tie bolts and then are filled with the non-shrinkage mortar, it is possible to secure high quality of construction by the easy construction method and the curing period reduction. The grille beams can be integrated by the fastening of the tie bolts between the grille beam members and the non-shrinkage mortar filling, so that the process of cast-in-place concrete pouring can be simplified and thus the construction period can be reduced. Specifically, as described above, there are useful effects in that the cast-in-place management can be carried out easily and the construction quality can be easily secured by minimization of a wet-type construction, the safety risk can be reduced by reduction of concrete pouring equipment and manpower, the construction period can be reduced by minimization of cast-in-place work, construction waste can be reduced by exclusion of the formwork installation and pouring, and a safe environment can be created by minimization and simplification of cast-in-place work.

Although the preferred embodiment of the present invention will be described in detail, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the present invention. The present invention is not limited to the modifications, additions and substitutions of the present invention, but is limited to the accompanying claims.

Claims

1. A grille beam structure construction method for a semiconductor factory, the method comprising:

installing columns;

installing studs between one of the columns and another column at predetermined intervals in longitudinal and transverse directions;

mounting grille beams, above the columns and the studs, wherein an rectangular-frame-shaped edge beam is arranged and transverse members and longitudinal members intersect with each other to be grid-arranged in the edge beam and the edge beam has a plurality of fastening holes penetrating horizontally therethrough; and

matching the fastening holes between the grille beams to each other and inserting bolts into the fastening holes, thereby integrating the grille beams with each other.

2. The method of claim 1, wherein the grille beams maintain a space equal to or longer than a predetermined distance therebetween, and a non-shrinkage mortar is filled into the space.

3. The method of claim 2, wherein a backup member is fitted into a lower end of the space where the grille beams are in contact with each other and a calking material is used therein for sealing of the space.

4. The method of claim 1, wherein a filling groove is formed on a surface of the edge beam of each of the grille beams, the surface having the fastening holes, from an upper portion that is located at a predetermined height above a lower end to an upper end of the surface, and

after the fastening of the bolts between the grille beams, a non-shrinkage mortar is filled into the filling groove.

5. The method of claim 1, wherein a bolt head seating groove is formed on an inner surface of the edge beam while being recessed inward, the inner surface having each of the fastening holes, so that a bolt head of each of the bolts is prevented from protruding outward after the fastening of the bolts.

6. The method of claim 1, wherein an inner corner of the edge beam of each of the grille beams mounted on the studs has an inner protrusion part so as to cover a corner of each of the studs completely.

7. The method of claim 1, wherein an outer surface of the edge beam of each of the grille beams is treated into a rough surface so that a friction force between the grille beams increases when the grille beams are joined to each other.

8. The method of claim 1, wherein each of the studs comprises a dowel bar such that the dowel bar protrudes upward to a predetermined length,

each of the grille beams has a through hole at a portion where the grill beam is mounted on each of the studs, the through hole is formed by vertically penetrating through a location corresponding to a location of the dowel bar, and the grille beam is mounted so that the dowel bar is inserted into the through hole, and then

a non-shrinkage mortar is filled into the through hole.

9. The method of claim 8, wherein the stud has a recessed groove, and the recessed groove is formed on an upper surface comprising the dowel bar to a predetermined depth, and

the non-shrinkage mortar is filled into both the through hole and the recessed groove at the same time.

10. The method of claim 8, wherein a coupler connection groove is formed on an upper surface of the edge beam, the upper surface having the through hole, by cutting the upper surface to a predetermined depth, so that an end of an upper reinforcing bar embedded in each of the grille beams protrudes toward the coupler connection groove to a predetermined length, and

a cast-in-place fastening reinforcing bar is located between upper reinforcing bars of adjacent grille beams among the grille beams, and opposite ends of the cast-in-place fastening reinforcing bar are fastened to respective ends of the opposite upper reinforcing bars by using couplers, and then

the non-shrinkage mortar is filled into the coupler connection groove.