KR101305357B1 - Underground structure construction method using the pc beam unit connection structure for expensive space - Google Patents

Abstract

The present invention is to construct an underground structure using a PC beam unit connection structure for space expansion,
(a) preliminary preparation step for removing the non-bearing wall of the existing building and expanding the space to clean up the site to be built underground; (b) a pile and pillar construction step of constructing a CIP pile CP in the underground structure of the underground structure and constructing a pillar pillar BC in the ground between the CIP pile CP and the existing wall W; (C) a first excavation step of excavating so that the head of the CIP pile (CP) and the base column (BC) is partially exposed; (d) a PC beam unit configured to include a prosthesis 110, a lower part 120, a lower part concrete 130, and a prosthetic bone 150 having a lower part partially embedded in the lower part concrete 130 ( A first PC beam unit coupling step of installing 100 between the existing wall (W) and the ground column (BC) and between the CIP pile (CP) and the ground column (BC); (e) installing a first RC strip to form an RC strip 400 by placing reinforcing bars in the CIP pile CP and placing concrete to fill one end of the PC beam unit 100; (f) placing the slab concrete (SC) so that the upper part of the compensation peripheral root 110 and the prosthetic bone 150 is embedded, except for the earth and sand removal and material inlet 500; ; (g) a second excavation step of digging to the next underground level through the soil discharge and material inlet 500; (h) a repeating construction step of repeating the steps (c) to (f) in accordance with the groundwater; (i) a final excavation step of digging to the last underground level through the soil discharge and material inlet 500; (j) foundation concrete placing step of placing the foundation concrete 600; And, (k) plywood concrete installation step of placing concrete between the plurality of RC strips 400 installed in each basement floor up and down to form a plywood concrete 700 in close contact with the CIP pile (CP). ,
The PC beam unit connection structure for expanding the space is to extend the space of the ramen structure by connecting the PC beam unit 100 to the existing slab (S) and the existing wall (W), the existing slab to expand the space (S) and a plurality of connecting stud bolts 210 having one end embedded in the end of the existing wall W and the other end exposed; A PC beam unit (100) comprising a compensator core (110), a beam lower main beam (120), a beam lower concrete (130) and a beam steel frame (150) partially embedded in the beam lower concrete (130). A plurality of connecting stud bolt fastening holes 162 are formed to connect the compensating yoke 110, the beam lower main stem 120 and the supporting steel frame 150 to the connecting stud bolt fastening holes 162, A lower end plate 160 through which the bolts 210 are inserted and fastened; And, the slab concrete (SC) is poured into the PC beam unit 100; is configured to include,
The proximal end plate 160 is fastened to the connection stud bolt 210, and then the compensation part root 110, the lower part root 120 and the prosthetic bone 150 is bonded, or the compensation part root 110 The basement construction method using the PC beam unit connection structure for the expansion of space, characterized in that the bottom stud root 120 and the prosthetic bone 150 is bonded to the connection stud bolt 210 after being bonded.

Description

 Underground Structure Construction Method Using The PC Beam Unit Connection Structure For Expensive Space}

The present invention is to extend the underground space into the space of the ramen structure by connecting the PC beam unit to the existing slab and the existing wall for the modeling of the wall structure, easy to manufacture with a simple structure and can be built quickly with a predetermined quality. The present invention relates to a method of constructing an underground structure using a PC beam unit connection structure for space expansion.

As the lifespan of the old buildings has been exhausted, the remodeling of the buildings has been on the rise.

In the conventional remodeling method, after removing only the existing slab S and the existing wall (bearing wall W) existing in the wall structure, all the ends of the existing slab S and the existing wall W are punched at regular intervals, And reinforced with a wall structure based on a fixed reinforcing bar. In the past, it was difficult to remodel the ramen structure because it could not satisfy the height.

The conventional remodeling method requires a large amount of reinforcement work by hand because a large amount of reinforcement work, such as manual work, and the upper floor construction can not proceed until the entire wall is completed in the new portion or the lower floor construction can not proceed for the underground structure construction The resulting air delay was noted as a disadvantage.

Therefore, it is urgent to develop a construction method in which the newly constructed part is composed of a space of a ramen structure using a PC beam unit, and when only a frame such as a beam is completed, the upper floor construction can proceed or the lower floor construction can proceed immediately for the construction of underground structures. .

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the related art. The purpose is as follows.

First, it is not possible to satisfy the height of the floor for the remodeling of the wall structure, so it is difficult to remodel it with the ramen structure. It is intended to provide a PC beam unit connection structure and its construction method for space expansion that can be remodeled.

Secondly, we intend to provide a PC beam unit connection structure and a construction method thereof for expanding the space that can maintain quality of specification safely even for an unskilled worker because the pre-manufactured PC beam unit is constructed by simple dry process.

Third, the construction of the PC beam unit connection structure and construction method for the expansion of the space can be done by constructing the newly constructed part into the space of the ramen structure using the PC beam unit and completing the upper floor construction as soon as the frame of the beam is completed. To provide.

Fourth, to provide an underground structure construction method using a PC beam unit connection structure for the expansion of the space to be constructed in the reverse order from the ground using the PC beam unit connection structure for the space expansion.

In order to solve the above technical problem, the present invention is to construct an underground structure using a PC beam unit connection structure for space expansion,

(a) preliminary preparation step for removing the non-bearing wall of the existing building and expanding the space to clean up the site to be built underground; (b) a pile and pillar construction step of constructing a CIP pile CP in the underground structure of the underground structure and constructing a pillar pillar BC in the ground between the CIP pile CP and the existing wall W; (C) a first excavation step of excavating so that the head of the CIP pile (CP) and the base column (BC) is partially exposed; (d) a PC beam unit configured to include a prosthesis 110, a lower part 120, a lower part concrete 130, and a prosthetic bone 150 having a lower part partially embedded in the lower part concrete 130 ( A first PC beam unit coupling step of installing 100 between the existing wall (W) and the ground column (BC) and between the CIP pile (CP) and the ground column (BC); (e) installing a first RC strip to form an RC strip 400 by placing reinforcing bars in the CIP pile CP and placing concrete to fill one end of the PC beam unit 100; (f) placing the slab concrete (SC) so that the upper part of the compensation peripheral root 110 and the prosthetic bone 150 is embedded, except for the earth and sand removal and material inlet 500; ; (g) a second excavation step of digging to the next underground level through the soil discharge and material inlet 500; (h) a repeating construction step of repeating the steps (c) to (f) in accordance with the groundwater; (i) a final excavation step of digging to the last underground level through the soil discharge and material inlet 500; (j) foundation concrete placing step of placing the foundation concrete 600; And, (k) plywood concrete installation step of placing concrete between the plurality of RC strips 400 installed in each basement floor up and down to form a plywood concrete 700 in close contact with the CIP pile (CP). ,

The PC beam unit connection structure for expanding the space is to extend the space of the ramen structure by connecting the PC beam unit 100 to the existing slab (S) and the existing wall (W), the existing slab to expand the space (S) and a plurality of connecting stud bolts 210 having one end embedded in the end of the existing wall W and the other end exposed; A PC beam unit (100) comprising a compensator core (110), a beam lower main beam (120), a beam lower concrete (130) and a beam steel frame (150) partially embedded in the beam lower concrete (130). A plurality of connecting stud bolt fastening holes 162 are formed to connect the compensating yoke 110, the beam lower main stem 120 and the supporting steel frame 150 to the connecting stud bolt fastening holes 162, A lower end plate 160 through which the bolts 210 are inserted and fastened; And, the slab concrete (SC) is poured into the PC beam unit 100; is configured to include,

The proximal end plate 160 is fastened to the connection stud bolt 210, and then the compensation part root 110, the lower part root 120 and the prosthetic bone 150 is bonded, or the compensation part root 110 The basement construction method using the PC beam unit connection structure for the expansion of space, characterized in that the bottom stud root 120 and the prosthetic bone 150 is bonded to the connection stud bolt 210 after being bonded.

According to the present invention, the following effects are expected.

First, it is not possible to satisfy the height of the floor for the remodeling of the wall structure, so it is difficult to remodel it with the ramen structure. Provides PC beam unit connection structure and its construction method for space remodeling.

Second, since the prefabricated PC beam unit is constructed by simple dry installation, it provides a PC beam unit connection structure and its construction method for expanding the space that can maintain quality of specification safely for the unskilled worker.

Third, the construction of the PC beam unit connection structure and construction method for the expansion of the space can be done by constructing the newly constructed part into the space of the ramen structure using the PC beam unit and completing the upper floor construction as soon as the frame of the beam is completed. to provide.

Fourth, it provides an underground structure construction method using a PC beam unit connection structure for the expansion of the space to be constructed in the reverse order from the ground using the PC beam unit connection structure for the space expansion.

Figs. 1 to 4 show an embodiment of a construction method of a PC beam unit connection structure for expanding a space.
5 to 8 show another embodiment of a construction method of a PC beam unit connection structure for expanding a space.
9 to 12 show another embodiment of a construction method of a PC beam unit connection structure for expanding a space.
13 to 16 show another embodiment of a construction method of a PC beam unit connection structure for expanding a space.
Fig. 17 is an example in which steel bars are composed of I type, T type and inverted T type in the present invention.
18 is an example in which the upper main muscle is omitted in the present invention.
19 is an example in which the height of at least one of the sub-plate and the amble plate is reduced in the present invention.
Fig. 20 shows an example in which the reinforcing member is made of a rectangular steel pipe in the present invention.
FIGS. 21 to 24 show another embodiment of a construction method of a PC beam unit connection structure for expanding a space.
25 to 30 show another embodiment of a method of constructing a PC beam unit connection structure for expanding a space.
31 is an example in which a hole of a reinforcing hole to which a reinforcing stud stud bolt is fastened is formed as a slot.
32 to 36 illustrate the process of the construction method for underground structures using the PC beam unit connection structure for the expansion of the space of the present invention.
37 to 42 illustrate a process of another embodiment of the method for constructing an underground structure using a PC beam unit connection structure for expanding the space of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1. For expansion PC beam unit  Connection structure

The PC beam unit connection structure for expanding the space of the present invention can be realized by connecting the PC beam unit 100 to the existing slab S and the existing wall W for modeling of the wall structure as shown in FIG. To expand into space,

A plurality of connecting stud bolts 210, one end of which is embedded in the ends of the existing slab S and the existing wall W to expose the space and the other end is exposed; A PC beam unit (100) comprising a compensator core (110), a beam lower main beam (120), a beam lower concrete (130) and a beam steel frame (150) partially embedded in the beam lower concrete (130). A plurality of connecting stud bolt fastening holes 162 are formed to connect the compensating yoke 110, the beam lower main stem 120 and the supporting steel frame 150 to the connecting stud bolt fastening holes 162, A lower end plate 160 through which the bolts 210 are inserted and fastened; And a slab concrete (SC) laid in the PC beam unit (100)

The secondary end plate 160 is coupled to the connecting stud bolt 210 and then the compensating secondary hoop 110, the lower secondary hoop 120 and the supporting steel hoop 150 are joined together, The beam lower main stem 120 and the beam steel frame 150 are joined together and then fastened to the connecting stud bolts 210.

FIG. 17 is an example in which the steel bars are formed of I-shaped, T-shaped and inverted T-shaped steel bars in the present invention, and FIG. 18 is an example in which the upper steel bars are omitted in the present invention.

As shown in FIG. 17, the steel frame 130 may be formed of an I-type, a T-type, an inverted T-type, and the like. So that the compensating auxiliary root 110 can be omitted.

In another embodiment of the present invention, as shown in FIG. 8, the compensating cantilever 110 is joined and a hole corresponding to the connecting stud bolt fastening hole 162 is formed, and the connecting stud bolt The reinforcing angle 170 is provided between the lower end plate 160 and the compensating rib 110. The reinforcing angle 170 is formed between the lower end plate 160 and the compensating rib 110, The reinforcing bar 110 may be joined to the connecting stud bolt 210 and then the compensating bar 110 may be joined to the beam lower main bar 120 and the supporting steel bar 150.

12, between the end plate 160 and the ends of the existing slab S and the existing wall W, a plurality of grooves (not shown) having the same shape as the end plate 160 The amble plate 200 is installed at an end of the existing slab S and the existing wall W in advance and the auxiliary plate 160 is installed at the end of the compensating sub- And is fastened to the connecting stud bolt 210 after the root 110, the beam lower main stem 120, and the beam steel frame 150 are joined together.

4, 8, and 12, a reinforcement 300 is further provided at the intersection of the existing slab S and the existing wall W, and the existing slab S And the reinforcement hole 300 is coupled to the reinforcement hole by the stud bolt 310.

Fig. 20 shows an example in which the reinforcing member is made of a rectangular steel pipe in the present invention.

Further, the reinforcing tool 300 may be an L-shaped steel shown in Figs. 4, 8 and 12, or a rectangular steel pipe shown in Fig.

And a web bracket 164 is preliminarily joined to the lower end plate 160 so that the web of the support beam 150 is fitted and engaged.

21,

An interval plate 180 consisting of an interval plate horizontal portion 182 and an interval plate vertical portion 184,

The web brackets 164 are formed in two opposing shapes, each having a vertical portion 166 and a horizontal portion 165,

The gap plate vertical portion 184 and the webs of the support steel frame 150 form inclined surfaces corresponding to each other,

And the web bracket 164 is positioned by its own weight when the web of the supporting steel frame 150 is inserted and fastened to the web bracket 164.

19 is an example in which the height of at least one of the sub-plate and the amble plate is reduced in the present invention. As shown in FIG. 19, according to the present invention, the height of at least one of the lower end plate and the upper end plate can be lowered, and when the height of the lower end plate and the upper end plate is lowered, (110) is directly embedded at the intersection of the existing slab (S) and the existing wall (W).

31 is an example in which a hole of a reinforcing hole to which a stud bolt is fastened is formed as a slot. In the reinforcing hole 300, a slot (not shown) May be formed.

The existing slab S and the existing wall W are constructed of a wall-structured spot-laid concrete, and even if a precise construction is carried out, a construction error may be inherently provided as long as it is not a PC member.

Therefore, when the PC beam unit of the present invention is connected to the existing slab S and the existing wall W, the original construction error of the conventional wall structure can be succeeded by the expansion structure having the ramen structure.

Therefore, all the fastening holes of the lower end plate 160, such as the connecting stud bolt fastening hole 162, the reinforcing angle 170, the amble plate 200, and the reinforcement hole 300 shown in FIG. 31, it is possible to flexibly cope with the position selection.

2. For space expansion PC beam unit  Construction method of connection structure

Each of FIGS. 1 to 16 (a) is a top view and (b) is a bottom view.

Figs. 1 to 4 show an embodiment of a construction method of a PC beam unit connection structure for expanding a space.

An embodiment of a method of constructing a PC beam unit connection structure for expanding a space according to the present invention is a method for constructing a PC beam unit connection structure for expanding the space,

(1) a connection stud bolt installation step of burying one end of a plurality of connecting stud bolts 210 at the ends of the existing slab S and the existing wall W to tear off the non-proof wall and enlarge the space; (2) As shown in FIG. 1, the connecting stud bolts 210 are passed through the connecting stud bolt fastening holes 162 of the lower end plate 160 and fastened to the PC beam unit 100, Phase step; (3) a PC beam unit joining step of joining the compensating cantilever 110, the beam lower main beam 120 and the beam steel frame 150 to the lower end plate 160 as shown in FIG. 2; And (4) a slab concrete pouring step of placing the slab concrete (SC) as shown in FIG. 3.

As shown in FIG. 1, the web bracket 164 may be previously joined to the lower end plate 160 to allow the web of the support beam 150 to be fitted and engaged.

5 to 8 show another embodiment of a construction method of a PC beam unit connection structure for expanding a space.

Another embodiment of the method of constructing the PC beam unit connection structure for expanding the space of the present invention is a method for constructing the PC beam unit connection structure for expanding the space,

(1) a connection stud bolt installation step of burying one end of a plurality of connecting stud bolts 210 at the ends of the existing slab S and the existing wall W to tear off the non-proof wall and enlarge the space; (2) As shown in FIG. 5, the lower end plate 160 is installed so that the connecting stud bolts 210 pass through. After the reinforcing angle 170 is joined to the compensating supporting roots 110, (170) and the PC beam unit (100); (3) As shown in FIGS. 6 and 7, the PC beam unit engaging step is performed by passing the connecting stud bolt 210 through the hole of the reinforcing angle 170, and fastening the same. And (4) a slab concrete casting step for casting the slab concrete (SC) as shown in FIG. 8.

As shown in FIG. 5, the web bracket 164 may be previously joined to the lower end plate 160 so that the web of the support beam 150 is fitted and engaged.

9 to 12 show another embodiment of a construction method of a PC beam unit connection structure for expanding a space.

Another embodiment of the method of constructing the PC beam unit connection structure for expanding the space of the present invention is a method for constructing the PC beam unit connection structure for expanding the space,

(1) a connection stud bolt installation step of burying one end of a plurality of connecting stud bolts 210 at the ends of the existing slab S and the existing wall W to tear off the non-proof wall and enlarge the space; (2) As shown in FIG. 9, the amble plate 200 is installed to penetrate the connecting stud bolts 210 and the supporting plate 160 is fixed to the compensating supporting bar 110, the beam lower main bar 120, A step of joining the bottom end plate 160 and the PC board unit 100 after joining to the supporting frame 150 and the PC board unit 150; (3) As shown in FIGS. 10 and 11, the PC beam unit coupling step of connecting the connecting stud bolts 210 to the connecting stud bolt fastening holes 162 of the lower end plate 160 and fastening them; And (4) a slab concrete casting step for casting the slab concrete (SC) as shown in FIG. 12.

13 to 16 show another embodiment of a construction method of a PC beam unit connection structure for expanding a space.

Another embodiment of the method of constructing the PC beam unit connection structure for expanding the space of the present invention is a method for constructing the PC beam unit connection structure for expanding the space,

(1) a connection stud bolt installation step of burying one end of a plurality of connecting stud bolts 210 at the ends of the existing slab S and the existing wall W to tear off the non-proof wall and enlarge the space; (2) As shown in FIG. 13, a PC beam forming the combined body by joining the compensating cushion muscle 110, the beam lower main muscle 120, the beam steel frame 150 and the reinforcing tool 300 to the lower end plate 160 Unit combining step; 14, the connecting stud bolt 210 is passed through the connecting stud bolt fastening hole 162 of the lower end plate 160, and the reinforcing stud bolt 310 is used A first fixing step of installing the reinforcing tool (300) on the existing slab (S) and the existing wall (W); (4) securing the connecting stud bolt 210 to the connecting stud bolt fastening hole 162 of the lower end plate 160, as shown in FIG. 15; And (5) a slab concrete casting step for casting the slab concrete SC as shown in FIG. 16.

FIGS. 21 to 24 show another embodiment of a construction method of a PC beam unit connection structure for expanding a space.

Another embodiment of the method of constructing the PC beam unit connection structure for expanding the space of the present invention is a method for constructing the PC beam unit connection structure for expanding the space,

(1) a connection stud bolt installation step of burying one end of a plurality of connecting stud bolts 210 at the ends of the existing slab S and the existing wall W to tear off the non-proof wall and enlarge the space; (2) As shown in FIG. 21, the connecting stud bolts 210 are passed through the connecting stud bolt fastening holes 162 of the lower end plate 160 and fastened to the PC beam unit 100, Phase step; (3) As shown in FIGS. 22 and 23, the web of the support beam 150 is fitted to the web bracket 164 and the compensating support roots 110 and the beam lower main rods 120 A PC beam unit joining step of joining the PC beam unit; And (4) a slab concrete casting step for casting the slab concrete (SC) as shown in FIG. 25.

25 to 30 show another embodiment of a method of constructing a PC beam unit connection structure for expanding a space.

Another embodiment of the method of constructing the PC beam unit connection structure for expanding the space of the present invention is a method for constructing the PC beam unit connection structure for expanding the space,

(1) a connection stud bolt installation step of burying one end of a plurality of connecting stud bolts 210 at the ends of the existing slab S and the existing wall W to tear off the non-proof wall and enlarge the space; (2) As shown in FIGS. 25 to 27, after installing the amber plate 200 so that the connecting stud bolts 210 pass through the connecting stud bolts 210, A PC beam unit piercing through the stud bolt fastening holes 162 and fastening the PC beam unit 100; (3) As shown in FIGS. 28 and 29, the web of the supporting steel frame 150 is fitted to the web bracket 164, and the compensating supporting frame 110 and the beam lower part A PC beam unit joining step of joining the main beam 120; And (4) a slab concrete pouring step for pouring the slab concrete (SC) as shown in FIG. 30.

A slot may be formed in the reinforcement hole 300 to adjust the position of the reinforcement hole when the stud bolt 310 is coupled to the reinforcement hole. In this case,

(1) a connection stud bolt installation step of burying one end of a plurality of connecting stud bolts 210 at the ends of the existing slab S and the existing wall W to tear off the non-proof wall and enlarge the space; (2) a PC beam unit coupling step of joining the compensating cushion root 110, the beam lower main beam 120, the beam steel frame 150, and the reinforcement hole 300 to the lower end plate 160 to form a combined body; (3) The connecting stud bolt 210 is passed through the connecting stud bolt fastening hole 162 of the lower end plate 160, and the reinforcing pin stud bolt 310 is used as shown in FIG. 31 A first fixing step of installing the reinforcing tool 300 on the existing slab S and the existing wall W and adjusting the position of the reinforcing tool 300 through the slot; (4) securing the connecting stud bolt (210) to the connecting stud bolt fastening hole (162) of the lower end plate (160); And (5) a slab concrete pouring step for pouring the slab concrete (SC).

3. For space expansion PC beam unit  Underground structure construction method using connection structure

32 to 36 illustrate the process of the construction method for underground structures using the PC beam unit connection structure for the expansion of the space of the present invention.

The underground structure construction method using the PC beam unit connection structure for space expansion of the present invention is to construct the underground structure using the PC beam unit connection structure and the construction method for the space expansion,

(a) preliminary preparation step for removing the non-bearing wall of the existing building and expanding the space to clean up the site to be built underground; (b) A file for constructing a CIP pile (CP) in the underground area of the underground structure as shown in FIG. And pillar construction step; (C) a first excavation step of excavating such that the head of the CIP pile (CP) and the base column (BC) is partially exposed as shown in Figure 32 (b); (d) the prosthetic bone 150 in which a lower portion is partially embedded in the lower portion of the lower portion of the compensation portion 110, the lower portion 120, the lower concrete 130 and the lower concrete 130 as shown in FIG. A first PC beam unit coupling step of installing a PC beam unit 100 including the existing wall W and the ground column BC and between the CIP pile CP and the ground column BC; (e) Installing a first RC strip as shown in FIG. 33 (a) to form an RC strip 400 by placing reinforcing bars in the CIP pile CP to bury one end of the PC beam unit 100 and placing concrete. ; (f) As shown in FIG. 33 (b), the slab concrete (SC) is poured so that the upper part of the compensator root 110 and the prosthetic bone 150 is embedded, except for the soil extraction and material inlet 500. A first slab concrete pouring step; (g) a second excavating step of digging to the next underground level through the soil discharge and material inlet 500 as shown in FIG. 34 (a); (h) a repeating construction step of repeating the steps (c) to (f) in accordance with the number of underground floors as shown in FIGS. 34 (b) to 35 (a); (i) the final excavation step of excavating to the last underground level through the soil discharge and material inlet 500 as shown in Figure 35 (b); (j) a base concrete placing step of placing the base concrete 600 as shown in Figure 36 (a); And, (k) plywood concrete installation to form a plywood concrete 700 in close contact with the CIP pile (CP) by placing concrete between a plurality of RC strips 400 installed up and down per basement floor as shown in Figure 36 (b) Configured; including;

The PC beam unit connection structure for expanding the space is to extend the space of the ramen structure by connecting the PC beam unit 100 to the existing slab (S) and the existing wall (W), the existing slab to expand the space (S) and a plurality of connecting stud bolts 210 having one end embedded in the end of the existing wall W and the other end exposed; A PC beam unit (100) comprising a compensator core (110), a beam lower main beam (120), a beam lower concrete (130) and a beam steel frame (150) partially embedded in the beam lower concrete (130). A plurality of connecting stud bolt fastening holes 162 are formed to connect the compensating yoke 110, the beam lower main stem 120 and the supporting steel frame 150 to the connecting stud bolt fastening holes 162, A lower end plate 160 through which the bolts 210 are inserted and fastened; And, the slab concrete (SC) is poured into the PC beam unit 100; is configured to include,

The proximal end plate 160 is fastened to the connection stud bolt 210, and then the compensation part root 110, the lower part root 120 and the prosthetic bone 150 is bonded, or the compensation part root 110 After the lower part 120 and the prosthetic bone 150 are bonded, the connection stud bolt 210 is fastened.

The base column (BC) may use a general steel column such as steel frame, and can use the column described in the application Nos. 10-2011-0079051, 0125079, 0130375, etc. filed by the applicant or inventor of the present invention freely.

37 to 42 illustrate a process of another embodiment of the method for constructing an underground structure using a PC beam unit connection structure for expanding the space of the present invention.

Another embodiment of the underground structure construction method using the PC beam unit connection structure for the expansion of the present invention is to construct the underground structure using the PC beam unit connection structure and the construction method for the space expansion,

(a) preliminary preparation step for removing the non-bearing wall of the existing building and expanding the space to clean up the site to be built underground; (b) A file for constructing a CIP pile CP in the underground area of the underground structure as shown in FIG. 37 (a) and for constructing a underground pillar BC in the ground between the CIP pile CP and the existing wall W; And pillar construction step; (C) a first excavation step of excavating such that the head of the CIP pile (CP) and the base column (BC) is partially exposed as shown in Figure 37 (b); (d) the prosthetic bone 150 in which a lower portion is partially embedded in the lower portion of the lower portion of the lower portion of the compensation portion 110, the lower portion 120, the lower concrete 130 and the lower concrete 130 as shown in FIG. A first PC beam unit coupling step of installing a PC beam unit 100 including the existing wall W and the ground column BC and between the CIP pile CP and the ground column BC; (e) a second excavation step of digging to the next underground level as shown in FIG. 38 (b); (f) A first plywood concrete installation step of forming concrete plywood concrete 700` in close contact with the CIP pile (CP) by placing concrete to bury one end of the PC beam unit 100 as shown in Figure 39 (a) ; (g) Placing slab concrete (SC) so that the upper portion of the compensation peripheral root 110 and the prosthetic bone 150 is buried as shown in Figure 39 (b) except for the soil extraction and material inlet 500 A first slab concrete pouring step; (h) a repeating construction step of repeating the steps (c) to (f) in accordance with the underground water as shown in Figure 40 to Figure 42 (a); (i) a final excavation step of digging to the last underground level through the soil discharge and material inlet 500; And, (j) as shown in (b) Figure 42 (b) the foundation concrete casting step of placing the concrete;

The PC beam unit connection structure for expanding the space is to extend the space of the ramen structure by connecting the PC beam unit 100 to the existing slab (S) and the existing wall (W), the existing slab to expand the space (S) and a plurality of connecting stud bolts 210 having one end embedded in the end of the existing wall W and the other end exposed; A PC beam unit (100) comprising a compensator core (110), a beam lower main beam (120), a beam lower concrete (130) and a beam steel frame (150) partially embedded in the beam lower concrete (130). A plurality of connecting stud bolt fastening holes 162 are formed to connect the compensating yoke 110, the beam lower main stem 120 and the supporting steel frame 150 to the connecting stud bolt fastening holes 162, A lower end plate 160 through which the bolts 210 are inserted and fastened; And, the slab concrete (SC) is poured into the PC beam unit 100; is configured to include,

The secondary end plate 160 is coupled to the connecting stud bolt 210 and then the compensating secondary hoop 110, the lower secondary hoop 120 and the supporting steel hoop 150 are joined together, The beam lower main stem 120 and the beam steel frame 150 are joined together and then fastened to the connecting stud bolts 210.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

It is therefore intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

S: existing slab
W: Original wall
SC: Slab Concrete
CP: CIP file
BC: underground
100: PC beam unit
110: The reward
120: Beam main stem
130: Beam lower concrete
150:
160: Lower end plate
162: Connecting stud bolt tightening hole
164: web bracket
165:
166:
170: Reinforcement angle
180: spacing plate
182: interval plate horizontal portion
184: spacing plate vertical section
200: Amber plate
210: Connecting stud bolt
300: Reinforcement hole
310: Stud bolt
400: RC belt
500: soil removal and material entrance
600: foundation concrete
700, 700`: Plywood Concrete

Claims (11)

For constructing underground structures using PC beam unit connection structure for space expansion,
(a) preliminary preparation step for removing the non-bearing wall of the existing building and expanding the space to clean up the site to be built underground;
(b) a pile and pillar construction step of constructing a CIP pile CP in the underground structure of the underground structure and constructing a pillar pillar BC in the ground between the CIP pile CP and the existing wall W;
(C) a first excavation step of excavating so that the head of the CIP pile (CP) and the base column (BC) is partially exposed;
(d) a PC beam unit configured to include a prosthesis 110, a lower part 120, a lower part concrete 130, and a prosthetic bone 150 having a lower part partially embedded in the lower part concrete 130 ( A first PC beam unit coupling step of installing 100 between the existing wall (W) and the ground column (BC) and between the CIP pile (CP) and the ground column (BC);
(e) installing a first RC strip to form an RC strip 400 by placing reinforcing bars in the CIP pile CP and placing concrete to fill one end of the PC beam unit 100;
(f) placing the slab concrete (SC) so that the upper part of the compensation peripheral root 110 and the prosthetic bone 150 is embedded, except for the earth and sand removal and material inlet 500; ;
(g) a second excavation step of digging to the next underground level through the soil discharge and material inlet 500;
(h) a repeating construction step of repeating the steps (c) to (f) in accordance with the groundwater;
(i) a final excavation step of digging to the last underground level through the soil discharge and material inlet 500;
(j) foundation concrete placing step of placing the foundation concrete 600; And
(k) a plywood concrete installation step of forming concrete between the plurality of RC strips 400 installed in each basement floor to form a plywood concrete 700 in close contact with the CIP pile (CP);
, ≪ / RTI >
The PC beam unit connection structure for expanding the space is to extend the space of the ramen structure by connecting the PC beam unit 100 to the existing slab (S) and the existing wall (W), the existing slab to expand the space (S) and a plurality of connecting stud bolts 210 having one end embedded in the end of the existing wall W and the other end exposed; A PC beam unit (100) comprising a compensator core (110), a beam lower main beam (120), a beam lower concrete (130) and a beam steel frame (150) partially embedded in the beam lower concrete (130). A plurality of connecting stud bolt fastening holes 162 are formed to connect the compensating yoke 110, the beam lower main stem 120 and the supporting steel frame 150 to the connecting stud bolt fastening holes 162, A lower end plate 160 through which the bolts 210 are inserted and fastened; And, the slab concrete (SC) is poured into the PC beam unit 100; is configured to include,
The proximal end plate 160 is fastened to the connection stud bolt 210, and then the compensation part root 110, the lower part root 120 and the prosthetic bone 150 is bonded, or the compensation part root 110 Underground structure construction method using a PC beam unit connection structure for the expansion of space, characterized in that the bottom portion 120 and the prosthetic bone 150 is bonded to the connection stud bolt 210 after being bonded.
For constructing underground structures using PC beam unit connection structure for space expansion,
(a) preliminary preparation step for removing the non-bearing wall of the existing building and expanding the space to clean up the site to be built underground;
(b) a pile and pillar construction step of constructing a CIP pile CP in the underground structure of the underground structure and constructing a pillar pillar BC in the ground between the CIP pile CP and the existing wall W;
(C) a first excavation step of excavating so that the head of the CIP pile (CP) and the base column (BC) is partially exposed;
(d) a PC beam unit configured to include a prosthesis 110, a lower part 120, a lower part concrete 130, and a prosthetic bone 150 having a lower part partially embedded in the lower part concrete 130 ( A first PC beam unit coupling step of installing 100 between the existing wall (W) and the ground column (BC) and between the CIP pile (CP) and the ground column (BC);
(e) a second excavation step of digging to the next underground level;
(f) a first plywood concrete installation step of placing concrete to bury one end of the PC beam unit 100 to form a plywood concrete 700` in close contact with the CIP pile CP;
(g) Placing the slab concrete (SC) so that the upper portion of the compensation peripheral root 110 and the prosthetic bone 150 is embedded, except for the earth and sand outlet and the material inlet 500, the first slab concrete pouring step ;
(h) a repeating construction step of repeating the steps (c) to (f) in accordance with the groundwater;
(i) a final excavation step of digging to the last underground level through the soil discharge and material inlet 500; And
(j) foundation concrete placing step of placing the foundation concrete 600;
, ≪ / RTI >
The PC beam unit connection structure for expanding the space is to extend the space of the ramen structure by connecting the PC beam unit 100 to the existing slab (S) and the existing wall (W), the existing slab to expand the space (S) and a plurality of connecting stud bolts 210 having one end embedded in the end of the existing wall W and the other end exposed; A PC beam unit (100) comprising a compensator core (110), a beam lower main beam (120), a beam lower concrete (130) and a beam steel frame (150) partially embedded in the beam lower concrete (130). A plurality of connecting stud bolt fastening holes 162 are formed to connect the compensating yoke 110, the beam lower main stem 120 and the supporting steel frame 150 to the connecting stud bolt fastening holes 162, A lower end plate 160 through which the bolts 210 are inserted and fastened; And, the slab concrete (SC) is poured into the PC beam unit 100; is configured to include,
The proximal end plate 160 is fastened to the connection stud bolt 210, and then the compensation part root 110, the lower part root 120 and the prosthetic bone 150 is bonded, or the compensation part root 110 Underground structure construction method using a PC beam unit connection structure for the expansion of space, characterized in that the bottom portion 120 and the prosthetic bone 150 is bonded to the connection stud bolt 210 after being bonded.
3. The method according to claim 1 or 2,
When the prosthesis 150 is a T-type or I-type underground structure construction method using a PC beam unit connection structure for expanding the space, characterized in that the compensation part 110 is omitted.
3. The method according to claim 1 or 2,
A reinforcing angle 170 in which the compensating cushion muscle 110 is joined and a hole corresponding to the connecting stud bolt fastening hole 162 is formed and the connecting stud bolt 210 is inserted and fastened through the hole In addition,
The reinforcing angle 170 is provided between the lower end plate 160 and the compensating cam follower 110,
The proximal end plate 160 is fastened to the connecting stud bolt 210, and then the compensation part root 110, the lower part root 120 and the prosthetic bone 150 is joined for space expansion Underground construction method using PC beam unit connection structure.
3. The method according to claim 1 or 2,
The beam end plate 160 is connected to the web bracket 164 in advance, the construction of the underground structure using a PC beam unit connection structure for space expansion, characterized in that the web of the prosthetic bone 150 is fitted and coupled.
3. The method according to claim 1 or 2,
An amble plate 200 having the same shape as that of the lower end plate 160 is further disposed between the lower end plate 160 and the ends of the existing slab S and the existing wall W,
The amble plate 200 is installed at the ends of the existing slab S and the existing wall W in advance,
The lower end plate 160 is coupled to the connection stud bolt 210 after the compensation part root 110, the lower part 120 and the prosthetic bone 150 is bonded Underground construction method using PC beam unit connection structure.
3. The method according to claim 1 or 2,
A reinforcement 300 is installed at the intersection of the existing slab S and the existing wall W,
Underground structure using a PC beam unit connection structure for space expansion, characterized in that the reinforcing sphere 300 is coupled to any one or more of the existing slab (S) and the existing wall (W) to the reinforcement stud bolt (310). Construction method.
In claim 7,
The reinforcement 300 is an underground structure construction method using a PC beam unit connection structure for space expansion, characterized in that the L-shaped steel or square steel pipe.
The method of claim 5,
An interval plate 180 consisting of an interval plate horizontal portion 182 and an interval plate vertical portion 184,
The web brackets 164 are formed in two opposing shapes, each having a vertical portion 166 and a horizontal portion 165,
The gap plate vertical portion 184 and the webs of the support steel frame 150 form inclined surfaces corresponding to each other,
Underground structure construction method using a PC beam unit connection structure for space expansion, characterized in that the position by the weight when the web bracket of the prosthetic bone 150 is fastened to the web bracket (164).
The method of claim 9,
An ambed plate 200 having the same shape as the lower end plate 160 is further installed between the lower end plate 160 and the ends of the existing slab S and the existing wall W. Underground structure construction method using PC beam unit connection structure for space expansion.
In claim 7,
The reinforcement hole 300 is a construction method using a PC beam unit connection structure for the expansion of space, characterized in that the slot (slot) is formed so that the position is adjusted when the reinforcement stud bolt 310 is coupled.

Images