JP2018505981A - PC truss wall structure and construction method thereof - Google Patents

PC truss wall structure and construction method thereof Download PDF

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JP2018505981A
JP2018505981A JP2017554228A JP2017554228A JP2018505981A JP 2018505981 A JP2018505981 A JP 2018505981A JP 2017554228 A JP2017554228 A JP 2017554228A JP 2017554228 A JP2017554228 A JP 2017554228A JP 2018505981 A JP2018505981 A JP 2018505981A
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Prior art keywords
truss
panel
compression
construction
panels
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JP6448817B2 (en
Inventor
ソク ソ、ヒョン
ソク ソ、ヒョン
ソプ シン、ユン
ソプ シン、ユン
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テヨン ピーシーエム カンパニー リミテッドTaeyeong Pcm Co.,Ltd
テヨン ピーシーエム カンパニー リミテッドTaeyeong Pcm Co.,Ltd
サムソン エンジニアリング カンパニー リミテッドSamsung Engineering Co.,Ltd
サムソン エンジニアリング カンパニー リミテッドSamsung Engineering Co.,Ltd
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Priority to KR20150019710 priority Critical
Priority to KR10-2015-0019710 priority
Priority to KR10-2015-0072105 priority
Priority to KR1020150072105A priority patent/KR101630235B1/en
Application filed by テヨン ピーシーエム カンパニー リミテッドTaeyeong Pcm Co.,Ltd, テヨン ピーシーエム カンパニー リミテッドTaeyeong Pcm Co.,Ltd, サムソン エンジニアリング カンパニー リミテッドSamsung Engineering Co.,Ltd, サムソン エンジニアリング カンパニー リミテッドSamsung Engineering Co.,Ltd filed Critical テヨン ピーシーエム カンパニー リミテッドTaeyeong Pcm Co.,Ltd
Priority to PCT/KR2016/000817 priority patent/WO2016129826A1/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/045Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84Walls made by casting, pouring, or tamping in situ
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting

Abstract

The present invention relates to a PC truss wall structure and a construction method thereof, and a PC panel for tension which is assembled so that a space portion is formed so as to be erected while matching each other so that on-site concrete is placed in the center portion. By connecting the PC panel for compression with the truss connecting material, it is made to move as one set and transported and moved so that it is safe so that there are no concerns about safety accidents during the construction process. PC truss wall structure with enhanced safety, which is easy to construct and is greatly improved because it is installed as a set with greatly enhanced performance, and an underground structure construction method using the same To provide. A PC truss wall structure with enhanced safety and an underground structure construction method using the PC truss wall structure are erected while matching each other, and a concrete part is placed in the center so that site concrete is placed. The PC panel for tensioning and the PC panel for compression assembled so as to be formed are not individually installed and moved after installation, but they can behave integrally by interconnecting with truss connecting material. Since it is transported and moved as a set, there is an advantage that safety is greatly enhanced without worrying about human accidents and property damage during the construction process. In addition, the present invention greatly improves the construction quality while the assembly and installation process is very simple because the tensile PC panel and the compression PC panel are moved together as a truss connecting material and moved and installed as a set. There is an advantage that can be made. Also, the PC panel for tension and the PC panel for compression that are assembled so that a space is formed so that the concrete on the site is placed in the center while being matched with each other are interconnected with a truss connecting material. It is able to withstand external forces during transportation, standing, upper member resting, wall and slab simultaneous placement, wind load and impact load, and in accordance with the present invention. Since the PC wall and the foundation are connected by a lower iron, there is an advantage that a separate temporary material is not required at the time of installation. [Selection] Figure 2

Description

  The present invention relates to a PC truss wall structure and a construction method thereof, and more specifically, a space portion is formed so that on-site concrete is placed in the center portion while standing up together with each other. During the construction process, the tensile PC panel and the compression PC panel that are assembled in such a way are interconnected with a truss connection material so that they are moved together and transported and moved as a set. The PC truss with enhanced safety so that the construction quality is greatly improved while it is easy to install because the safety is greatly enhanced so that there is no concern about safety accidents. The present invention relates to a wall structure and an underground structure construction method using the same. That is, according to the present invention, a tensile PC panel and a compression PC panel, which are erected while matching each other and are assembled so that a space portion is formed so that on-site concrete is placed in the center portion, are made of truss connecting materials. By interconnecting, it can be fully integrated and can withstand external forces when transporting, standing up, placing the upper member, wall and slab at the same time, wind load and impact load, and extending The PC trough wall structure according to the present invention, which has the advantage that a separate temporary material is not required at the time of installation because the PC wall body and the foundation are connected by a lower iron object, and a PC truss wall structure having enhanced safety and the same. It relates to the construction method of underground structures used.

Generally, various underground structures made up of large capacity and large spaces such as wastewater treatment plants, underground parking lots, and rainwater storage tanks that are buried in the basement usually form a moat-shaped foundation, and formwork is placed on top of it. After constructing the outer wall with concrete on site using the RC method, the PC slab or the concrete cast on the site is again attached to the upper end of the outer wall.
However, the construction method of the wall structure by such RC method is to install the formwork indispensable to form the wall, and after placing the concrete in the formwork and hardening it in the field Since the subsequent process can only proceed, there was a problem that the construction period was prolonged, and as a result, there was not only the troublesomeness that had to be removed after installing the formwork one by one, but also concrete There was a problem that safety accidents frequently occurred because the formwork was torn in the process of placing the machine on site.

In order to solve such a problem of the wall structure by the conventional RC method, Patent Document 1 discloses a method of constructing a wall structure using a sandwich PC-wall as shown in FIG. It is disclosed.
In the conventional construction method, after forming a groove for standing the outer wall on the upper surface of the foundation, the first PC panel and the second PC panel, which are a plurality of panels, are erected while keeping a predetermined interval on the groove. After assembling, on-site concrete is placed in the space between the panels to be matched so that the PC wall is integrally formed with the panels.
However, in this conventional method, the first PC panel and the second PC panel are produced separately in the factory and then transported and installed on the site. Therefore, there is a disadvantage in that each PC panel can not act as a single wall by acting individually, and cannot exhibit a combined effect, and in the longitudinal direction, the narrow and long standing groove in the longitudinal direction. Since each long-formed PC panel is temporarily set up, it has a serious problem that it causes a fatal human accident due to overturning during the construction process.

  In addition, in the conventional method, the first PC panel and the second PC panel, which are individually set up, are always formed with through-holes so as to prevent the first PC panel and the second PC panel from moving away from each other. For this reason, there is a problem that Foam Tie (registered trademark) is damaged in the process of placing concrete in the center, and the problem that water leaks from the through hole formed in the inner panel continues to occur. ing.

  Therefore, when constructing the wall of an underground structure as described above, it is possible to solve the problems of the conventional technology, but it is safe at the time of construction so that there is no concern about human life accidents or property damage. The need for a new PC wall structure that can remarkably shorten the construction period while being structurally stable and can greatly improve the construction quality, while keeping the structure stable. ing.

Korean Patent Registration No. 10-1001208

  The present invention has been developed to solve the above-described problems, and includes a tensile PC panel and a compression PC panel that form a large-capacity large-standard wall of an underground structure such as a wastewater treatment plant. Are assembled so that a space part is formed in the center part so that on-site concrete is placed. At this time, the tensile PC panel and the compression PC panel are connected to the truss connecting material. By connecting them to each other, they can behave as a single unit, and can be used sufficiently for the external force, wind load and impact load generated during transportation, standing up, standing on the upper member, and simultaneous placement of the wall and slab. In order to be able to withstand, by connecting the PC panel and the foundation with a lower iron, it is not necessary to install a separate temporary material. To do In the construction process, safety is greatly strengthened so that there is no fear of fatal safety accidents, and since it is installed as a set, construction is easy, but construction quality is greatly improved. It is an object of the present invention to provide a PC truss wall structure with enhanced safety, an underground structure using the same, and a construction method.

  In order to achieve the above-described object, according to a preferred embodiment of the present invention, a plurality of PC panels are separated from each other by a predetermined distance and are erected while being aligned with each other, and formed at a central portion by a distance. In the PC wall structure in which the concrete in place is placed in the formed space to form the wall structure of an underground structure such as a wastewater treatment plant, the PC wall structure is perpendicular to the foundation concrete. A plurality of tensile PC panels 10 which are made of a rectangular quadrilateral precast concrete panel and have a predetermined thickness, and a plurality of panels are continuously installed side by side. Precast concrete in the shape of a rectangular plate, which is installed at a position corresponding to the PC panel for a predetermined distance and is vertically set on the foundation concrete and has a predetermined thickness. A plurality of compression PC panels 20 that are continuously arranged side by side, and the tension PC panel 10 and the compression PC panel separated by a predetermined distance are truss connecting members. The truss connecting member 30 is embedded in the inside of the pulling PC panel 10 and installed inside the tensioning PC panel 10 and the compression PC panel 20 so that the truss connecting member 30 can be connected and integrated with each other. The first and second vertical rails 31b are horizontally connected so that the second vertical rail 31b installed in the land and the tensile PC panel and the compression PC panel can behave integrally with each other. A plurality of horizontal members 32 installed in the vertical direction at a predetermined interval, and a plurality of horizontal members 32 so as to effectively disperse the load applied to the tension PC panel and the compression PC panel. Including a plurality of inclined members 33 connected to each other in a direction inclined between them, each of the PC panels 10 and 20 is provided with a plurality of truss connecting members, and one side of the horizontal member of the one truss connecting member The other side end of the horizontal member of the truss connecting material adjacent to the end is a cross-sectional connecting material so as to minimize the horizontal displacement of the PC wall structure against the external force in the longitudinal direction during transportation, lifting and standing. A PC truss wall structure with enhanced safety, characterized in that is additionally included.

  According to another embodiment of the present invention, the horizontal member or the inclined member and the horizontal member or the inclined member are maximized when the horizontal member or the inclined member and the first and second vertical rails are interconnected. First and second connecting members 35a and 35b are additionally installed between the first and second vertical rails.

  According to another embodiment of the present invention, the tensile PC panel 10 is higher than the compression PC panel 20 so as to form an outer wall in a wall structure of an underground structure such as a wastewater treatment plant. It is formed.

  According to another embodiment of the present invention, a lifting plate 36 is additionally provided on the upper free ends of the pulling PC panel 10 and the compression PC panel 20 so that a lifting cable can be connected. The lifting plate installed on the upper free end of the compression PC panel 20 additionally performs a PC slab stopper role.

  According to another embodiment of the present invention, a PC slab is placed on the upper free end of the PC panel 20 for compression, and concrete in the field is simultaneously placed on the central space between the PC panels and the PC slab. It is characterized by being placed.

  According to another embodiment of the present invention, the tension PC panel 10 and the compression PC panel 20 are mutually connected to form an inner wall body in a wall structure of an underground structure such as a wastewater treatment plant. It is characterized by being formed at a height equal to

  According to another embodiment of the present invention, a lifting plate 36 is additionally provided on the upper free ends of the pulling PC panel 10 and the compression PC panel 20 so that a lifting cable can be connected. The lifting plate is additionally provided with a PC slab stopper function.

  According to another embodiment of the present invention, a PC slab is placed on the upper free ends of the tension PC panel 10 and the compression PC panel 20, and a central space between the PC panels and the PC slab are placed on the PC slab. In-situ concrete is placed at the same time.

  According to another embodiment of the present invention, the lower end portions of the tension PC panel 10 and the compression PC panel 20 are bolted to the base portion by the lower connecting iron 50 so that they can resist wind load or impact load. It is characterized by being fastened.

  According to another embodiment of the present invention, a truss guard for shear reinforcement of the wall body is additionally installed on the internal surfaces of the pulling PC panel 10 and the compressing PC panel 20 that match each other. Features.

  According to another embodiment of the present invention, in the method of constructing an underground structure using a PC truss wall structure, the construction method includes: (a) placing abandoned concrete; and (b) PC The stage of displaying the position of the truss wall structure and the wall reinforcement, the lower anchor and the foundation rebar interference part, (c) avoiding the interference part, arranging the base reinforcement and wall reinforcement, and stopping the construction joint Installing a valve; (d) placing and curing foundation concrete; (e) displaying the PC truss wall structure, lower anchor and column position; and (f) drilling the lower anchor. And (g) a lower anchor and the PC truss wall structure, wherein the PC truss wall structure according to the above is installed as a unit, vertically set up and moved integrally at the installation position; And (h) the step (e) no. (F) step underground construction construction method using the PC truss wall structure, characterized in that continuously repeated by comprising the steps of PC Truss wall structure is installed, it is provided.

  According to another embodiment of the present invention, in order to additionally reinforce an underground structure using the PC truss wall structure, (i) a plurality of PC panels arranged side by side. A stage in which reinforcing bars P are additionally arranged for sections that connect them to each other and sections that require reinforcement, and (j) between a plurality of PC panels that are arranged side by side. Steps in which backup material and caulking work and mortar construction are performed from the lower part of the wall body to a predetermined height with respect to the gap, and (k) a pillar member and a guard member are installed, and the pillar member, guard member and wall body member After installing the slab member on the upper side, arranging the slab rebar, (l) No concrete joint in the field on the slab member upper part and the central part formed by the tensile PC panel 10 and the compression PC panel 20 At the same time When, characterized in that it comprises a the steps installed (m) wherein (i) to (l) phase is PC truss wall structure is continuously repeated is reinforced.

  According to another embodiment of the present invention, a PC slab is placed on the upper free end of the PC panel of the PC truss wall, and a concrete is placed on the central space between the PC panels and on the PC slab. Are placed at the same time.

  The PC truss wall structure with enhanced safety and the underground structure construction method using the same according to the present invention having the above-mentioned purpose and configuration are erected while matching each other, and on-site concrete is placed in the center. The tension PC panel and the compression PC panel that are assembled so that the space is formed as described above are not separately installed and moved, but are interconnected by a truss connecting material. As a result, it can be transported and moved as a set, so that there is an advantage that safety is greatly enhanced without worrying about human accidents and property damage in the construction process.

In addition, the present invention greatly improves the construction quality while the assembly and installation process is very simple because the PC panel for tension and the PC panel for compression are moved together as a truss connecting material and moved and installed as a set. There is an advantage that can be made.
Further, according to the present invention, an anti-dropping haunch is additionally formed on the upper free end of the compression PC panel, so that the slab can be stably seated, the construction is simple, and the construction period can be shortened. There are advantages.

In other words, in the present invention, a truss connection is made between a tension PC panel and a compression PC panel that are erected while matching each other and are assembled so that a space portion is formed in the center portion so that on-site concrete is placed. Because they are connected together as a material, they can be fully integrated and can withstand external forces, wind loads, and impact loads that are generated during transportation, standing up, upper member standing, and simultaneous placement of wall and slab. Since the lower iron is connected between the PC wall and the foundation, safety is ensured even if a separate temporary material is not required during the installation process.
In addition, the present invention has an advantage in that a truss connecting material is used between the pulling PC panel and the compressing PC panel, so that the PC yield strength can be increased and the slab to the wall can be driven at a time.

Drawing for prior art Drawing showing a PC truss wall structure according to the present invention Photograph showing a truss connecting material for a PC truss wall structure according to the present invention Photograph showing a truss connecting material for a PC truss wall structure according to the present invention Partial sectional view of a PC truss wall structure according to the present invention Partial sectional view of a PC truss wall structure according to the present invention Partial sectional view of a PC truss wall structure according to the present invention Partial sectional view of a PC truss wall structure according to the present invention Upper end portion and enlarged view of PC truss wall structure according to the present invention Drawing which shows the plate for lifting of the PC truss wall structure by this invention Drawing which shows the plate for lifting of the PC truss wall structure by this invention Each detail drawing of truss connection material of PC truss wall structure according to the present invention Each detail drawing of truss connection material of PC truss wall structure according to the present invention Each detail drawing of truss connection material of PC truss wall structure according to the present invention Each detail drawing of truss connection material of PC truss wall structure according to the present invention Each detail drawing of truss connection material of PC truss wall structure according to the present invention Drawing showing longitudinal section strength of PC truss wall structure according to the present invention The horizontal transfer method and horizontal deformation of the PC truss wall structure according to the present invention The horizontal transfer method and horizontal deformation of the PC truss wall structure according to the present invention Drawing showing transverse wall strength of PC truss wall structure according to the present invention Drawing showing transverse wall strength of PC truss wall structure according to the present invention Drawing which shows the safety scaffold truss of PC truss wall structure by this invention 1 shows a support reinforcing method during transportation of a PC truss wall structure according to the present invention. Drawing which shows the deformation | transformation index | exponent of PC truss wall structure by this invention Drawing which shows the deformation | transformation index | exponent of PC truss wall structure by this invention The drawing which shows the slab extension method of the PC truss wall structure by this invention Drawing which shows the construction procedure of PC truss wall structure by this invention Drawing which shows the construction procedure of PC truss wall structure by this invention in detail Drawing which shows the construction procedure of PC truss wall structure by this invention in detail Drawing which shows the construction procedure of PC truss wall structure by this invention in detail Drawing which shows the construction procedure of PC truss wall structure by this invention in detail Drawing which shows the construction procedure of PC truss wall structure by this invention in detail Drawing which shows the construction procedure of PC truss wall structure by this invention in detail Drawing which shows the construction procedure of PC truss wall structure by this invention in detail Drawing which shows the construction procedure of PC truss wall structure by this invention in detail Drawing which shows the construction procedure of PC truss wall structure by this invention in detail The drawing which shows the connection method between the walls of the PC truss wall structure according to the present invention The drawing which shows the connection method between the walls of the PC truss wall structure according to the present invention Drawing which shows reinforcement reinforcement installation of PC truss wall structure by the present invention

  According to a preferred embodiment of the present invention, the concrete is formed in the space formed in the central portion of the plurality of PC panels separated from each other by a predetermined distance and standing up and spaced apart from each other. In a PC wall structure that is placed and forms a wall structure of an underground structure such as a wastewater treatment plant, the PC wall structure is erected vertically on the foundation concrete to have a predetermined thickness. A plurality of PC panels for tension 10 which are made of pre-cast concrete panels having a rectangular plate shape and have a plurality of panels arranged continuously and in positions corresponding to the plurality of PC panels for tension. A plurality of precast concrete panels, which are installed at a predetermined distance and are vertically arranged on the foundation concrete and have a predetermined thickness and have a predetermined thickness. A plurality of compression PC panels 20 that are continuously installed side by side, the tensile PC panel 10 and the compression PC panel separated by a predetermined distance are interconnected by a truss connecting member 30 and integrated. As described above, the truss connecting member 30 is buried in the first vertical rail 31a installed in the tensile PC panel 10 and installed in the compression PC panel 20. The first and second vertical rails are connected in the horizontal direction so that the second vertical rail 31b, the pulling PC panel and the compression PC panel can behave integrally with each other. The plurality of horizontal members 32 are connected to each other in an inclined direction so as to effectively disperse the load applied to the PC panel for tension and the PC panel for compression. Duplicate A plurality of truss connecting members are installed on each of the PC panels 10 and 20 including the inclined members 33, and a horizontal member of the truss connecting member adjacent to one side end of the horizontal member of the one truss connecting member. The other side end portion is additionally provided with a cross-section connecting material so as to minimize the horizontal displacement with respect to the external force in the longitudinal direction when the PC wall structure is transported, lifted and raised. A PC truss wall structure with enhanced safety is provided.

The terms and words used in this specification and claims should not be construed in a normal or lexicographic sense, and the inventor should best understand his / her invention. In accordance with the principle that the concept of terms can be appropriately defined for the purpose of explaining in this way, it is consistent with the technical idea of the present invention.
Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only one of the most desirable embodiments of the present invention, and do not represent all the technical ideas of the present invention. There may be various equivalents and variations that can be replaced at the time of this application. In addition, when it is determined that known techniques related to explaining the present invention may obscure the gist of the present invention, a detailed description thereof will be omitted.

Hereinafter, a PC truss wall structure with enhanced safety according to a preferred embodiment of the present invention and an underground structure construction method using the same will be described in detail with reference to the accompanying drawings.
First, the PC truss wall structure with enhanced safety according to the present invention is abbreviated as PTW as a PC TRUSS WALL structure. On the other hand, in the preferred embodiment of the present invention, the truss structure is described by a truss connecting material, but the terminology is not limited in terms of the terminology, and can achieve the same function and purpose. Does not exclude the use of other terms.

  First, as shown in FIG. 2, a plurality of precast concrete panels having a predetermined thickness, which are vertically formed on a foundation concrete according to the present invention and have a predetermined thickness, are formed. The PC panel for tension 10 and the PC panel for compression 20 which are formed of panels and are arranged side by side in the longitudinal direction form a predetermined interval and are erected while matching each other, and a space is formed in the center. In the PC wall structure that is formed integrally by placing the on-site concrete 40 in the space after being assembled, the PC wall structure includes the plurality of tensile PC panels 10. The space portions of the plurality of compression PC panels 20 include a central connecting member 30 that is interconnected so as to behave integrally. The central connecting member 30 is buried in the tensile PC panel 10. The first vertical rail 31a, the second vertical rail 31b buried in the compression PC panel 20, and the first vertical rail 31a and the second vertical rail 31b are connected in the horizontal direction. A plurality of horizontal members 32 installed at predetermined vertical intervals and a plurality of inclined members 33 connected in a tilted direction between the plurality of horizontal members 32 are used as basic components.

  On the other hand, in the preferred embodiment of the present invention, the tensile PC panel 10 and the compression PC panel 20 are described as the main components by the compression member and the tension member, but the compression member is installed when the PC wall body according to the present invention is installed. Is changed to a tension member after completion, and the tension member at the time of installation is changed to a compression member after completion. Accordingly, the compression member and the tension member, which are the main components of the present invention, are not limited by the dictionary meaning of the terms, and the use of other terms is excluded as long as the same function and purpose can be achieved. Not what you want.

Hereinafter, the components according to the present invention will be described in detail. First, the tensile PC panel 10 may be formed higher in the length direction than the compression PC panel 20 so as to form an outer wall body in a wall structure of an underground structure such as a wastewater treatment plant. To be preferred. However, the tensile PC panel 10 and the compression PC panel 20 are formed at the same height so as to form an inner wall body in a wall structure of an underground structure such as a wastewater treatment plant according to the purpose of the user. You can also.
The PC panel for tension 10 and the PC panel for compression 20 are formed so as to match each other, and a truss guard for shear reinforcement of the wall is additionally installed on the inner surface thereof. And the PC panel are more firmly formed.

Among the components of the truss connecting member 30 of the present invention, the first vertical rail 31a is buried in the inside of the pulling PC panel 10, and the second vertical rail 31b is opposed to the first vertical rail 31a. It is installed in the position where it was buried in the PC panel 20 for compression.
Meanwhile, the horizontal member 32 of the truss connecting member 30 connects the first and second vertical rails 31a and 31b in the horizontal direction so that the pulling PC panel and the compressing PC panel can behave integrally with each other. However, a plurality are installed in the vertical direction at a predetermined interval. In addition, there are a plurality of inclined members 33 of the truss connecting member 30 in a direction inclined between the plurality of horizontal members 32 so that the load applied to the pulling PC panel 10 and the compressing PC panel 20 is effectively dispersed. Are concatenated. On the other hand, the truss connecting material according to the present invention is preferably a rectangular steel pipe or an L-shaped steel pipe. However, other than a circular steel pipe, an H beam, a reinforcing bar, etc., as long as the same purpose and function can be achieved. It is not excluded to use a member of the shape.

Meanwhile, as shown in FIGS. 3 and 4, the first vertical rail may be installed so that the pulling PC panel and the compressing PC panel can be moved together and installed. A plurality of horizontal members 32 that connect 31a and the second vertical rail 31b in the horizontal direction are installed. At this time, it is preferable that the vertical intervals of the plurality of horizontal members are formed at equal intervals over the entire length of the tensile PC panel and the compression PC panel.
On the other hand, the horizontal members 32 are generally formed at equal intervals. However, the horizontal members 32 are installed by calculating the proof stress between the tensile PC panel 10 and the compression PC panel 20, and are limited by being formed at equal intervals. It is not a thing.
On the other hand, the horizontal members 32 installed in the lower part of the pulling PC panel 10 and the compression PC panel 20 are formed at a narrower distance than the parts having different vertical intervals, and are also installed in the upper part. The material 32 is formed at a further narrower interval than the portions having different vertical intervals.
That is, the horizontal member 32 is installed in the upper and lower parts so that the tensile PC panel 10 and the compression PC panel 20 are vertically symmetrical with respect to the intermediate part in the height direction. It is installed at a narrower interval than the horizontal member 32 to be installed.

  Next, FIGS. 5 to 8 are partial cross-sectional views of the PC truss wall structure. When the PC truss wall structures are installed in series, gaps between the wall structures, that is, gaps between a plurality of PC panels arranged side by side are external. In order to prevent exposure to the environment, a backup material such as 9 waterproofing material is caulked to prevent the interior from being corroded.

Next, FIG. 9 is an enlarged view of the upper portion of the PC truss wall structure and the portion to which the truss connecting member 30 is coupled. The wall structure is connected to each other in a horizontal direction, that is, a section connecting a plurality of PC panels arranged side by side to each other and a section requiring reinforcement. A plate reinforcement bar P is additionally formed and formed of a wire mesh formed with a small diameter for minimizing the joint length.
Further, with respect to the drawing in which the truss connecting member 30 is enlarged, a cross-section connecting member 34 is additionally formed between the horizontal member 32 and the horizontal member 32 in order to minimize horizontal displacement during transportation, lifting and standing. Is done. That is, each of the PC panels 10 and 20 is provided with a plurality of truss connecting members, and the other side end of the horizontal member of the truss connecting member adjacent to the one side end of the horizontal member of the one truss connecting member is A cross-section connecting material is additionally included so that horizontal displacement with respect to external force in the longitudinal direction during transportation, lifting and standing of the PC wall structure can be minimized. At this time, the reinforcing bar interference portion formed at the lower end of the wall body is removed after standing.

On the other hand, the horizontal member 32 to which the cross-section connecting member 34 is connected does not exclude being connected to the inclined member 33 depending on the purpose of use.
Further, plate-shaped first and second connecting members 35a and 35b are additionally formed between the horizontal member 32 and the first and second vertical rails 31a and 31b, and the first and second connecting members 35a and 35b are When the horizontal member and the vertical rail are connected, the area to be joined is maximized. That is, when the horizontal member 32 or the inclined member 33 and the first and second vertical rails 31 a and 31 b are interconnected, the horizontal member 32 or the inclined member 33 and the first member are maximized. First and second connecting members 35a and 35b may be additionally installed between the two vertical rails 31a and 31b.

Next, FIGS. 10 and 11 are drawings showing a lifting plate 36 formed on the upper portion of the PC truss wall structure. The lifting plate 36 will be described in detail later.

  Next, FIG. 12 is a drawing showing the truss connecting member 30 inside the PC truss wall structure, FIG. 13 is a drawing showing the “A” portion of FIG. 12, and FIG. 14 is the drawing of “B” of FIG. It is a drawing showing a part. FIG. 15 is a view showing a 'C' portion of FIG. 12, and FIG. 16 is a view showing a 'D' portion of FIG. Each part will be described later.

On the other hand, as shown in FIG. 22, a safety scaffold truss is additionally installed on the outer side of the upper free end of the tensile PC panel 10, and the tensile PC panel 10 and the safety scaffold truss are coupled. In this way, it is fastened with a coupling bolt and an insert. There is an advantage that a safety scaffold such as a gang form or an iron plate is additionally formed on the upper surface of the safety scaffold truss so that an operator can work safely.
The maximum allowable load of the safety scaffold truss is designed to be 400 kg / m 2, which enables safer work.

Next, as shown in FIG. 18, the tension PC panel 10 and the compression PC panel 20 are united and united, lifted and transported, and the tension PC panel 10 or the compression PC panel. A head anchor is additionally buried in the outer portion of the head 20 so as to be connected to the lifting cable by being spaced apart by a predetermined distance from both ends.
The head anchor has an I-shaped cross section, and an inner head portion buried inside from the upper side of the outer head portion protruding outward is formed with a longer diameter and is more firmly fixed.
If the external head portion protruding to the outside of the head anchor is connected to the lifting cable, the lifting cable connected to the head anchor is connected in an inverted Y shape as shown in FIG. If the distance is 60 degrees or more, the balance beam is prevented from tilting to one side.

  On the other hand, as shown in FIG. 19, when the PC truss wall structure is coupled to the lifting cable as described above, the maximum elastic deformation is about 0.8 mm. Since the proof stress ratio of the member is about 0.3 or less, it has an advantage that it is structurally safer.

  Next, as shown in FIG. 20, the tension PC panel 10 and the compression PC panel 20 are formed so that the tension PC panel 10 and the compression PC panel 20 are integrally bound and set as a set. On the upper free end, a lifting iron plate, that is, a lifting plate 36 is formed by joining with a truss so that a lifting cable is connected. That is, a lifting plate 36 is additionally installed on the upper free ends of the pulling PC panel 10 and the compression PC panel 20 so that a lifting cable can be connected. When the tension PC panel 10 is formed higher than the compression PC panel 20 so as to form an outer wall body in the wall structure of such an underground structure, the upper free side of the compression PC panel 20 is freely formed. The lifting plate installed on the end portion additionally performs a PC slab stopper role (FIG. 11). In the case where the tension PC panel 10 and the compression PC panel 20 are formed at the same height so as to form an inner wall in a wall structure of an underground structure such as a wastewater treatment plant. In addition, a lifting plate 36 is additionally installed on the upper free ends of the pulling PC panel 10 and the compression PC panel 20 so that a lifting cable can be connected. All of them will additionally perform the PC slab stopper role (FIG. 10). On the other hand, the PC truss wall structure is placed on the lower end of the pulling 11PC panel 10 and the compression PC panel 20 in order to prevent the corner portion from being damaged when the wall is erected. Additional acupressure pads and L-shaped steel are provided.

On the other hand, when the lifting cable is connected to the lifting iron plate formed as described above as shown in FIG. 21, the maximum elastic deformation of the center portion of the PC truss wall structure is about 3.0 mm. Thus, the strength ratio of the truss member during lifting is generated at about 0.7 or less, and there is an advantage that it is structurally safer.
On the other hand, it is preferred that the lifting plate is formed on one side of the upper free ends of the PC panel 10 and the compression PC panel 20, but within a range where the same purpose and function can be achieved. It does not exclude being formed on both sides.
The lower end portions of the tension PC panel 10 and the compression PC panel 20 are combined with the base portion, but it is preferable to be bolted at this time, but a range in which the same purpose and function can be achieved. It does not exclude being fixed by other fixing means. That is, the lower end portions of the tension PC panel 10 and the compression PC panel 20 are bolted to the base portion by the lower connecting iron 50 so that they can resist wind load or impact load.
On the other hand, the PC truss wall structure is transported as a single structure. In order to prevent the wall structure from being deformed during transport in the horizontal direction, a support reinforcing structure is provided in a predetermined internal space. Placed in. Further, in order to prevent deformation due to external impact when transported while being loaded on the truck, a supporting tree is additionally disposed on the part of the truck that comes into contact with the loading box.

  Next, FIGS. 24 to 25 are diagrams showing the deformation index of the PC truss wall structure, and the external force applied by the external stress in the lateral direction gradually increases from the lower side to the upper side. Appears.

On the other hand, as shown in FIG. 26, the slab structure (S) is seated on the upper free end of the compression PC panel 20, but the slab structure is not long enough to be seated. A slab reinforcement plate is additionally installed on the upper free end in case it is not.
In addition, the reinforcing reinforcing bars are constructed by additionally arranging PC plate connecting horizontal reinforcing bars and horizontal reinforcing bars so that reinforcing bars are additionally placed inside the tensioning PC panel 10 and the compressing PC panel 20. As a result, the PC-connected horizontal reinforcing bars are applied to the 1/2 section of the overall height.

FIG. 38 is a view showing a step of reinforcing a T-shaped structure using the reinforcing reinforcing bars as shown in FIG. 37, and FIG. 38 reinforces the cross-section structure using the reinforcing reinforcing bars. FIG. 5 is a diagram illustrating stages, and reinforcing bars are arranged so as to intersect each other so that the wall structures are more firmly coupled to each other.
On the other hand, the first and second connecting members, the interval between the horizontal members, the safety scaffold, the hanging length method, etc., which are constituent elements of the PC truss wall structure, are further added or omitted depending on the construction purpose and construction method. It does not exclude that the installation position and the number of components are further added or omitted.

  On the other hand, in detail with reference to FIG. 27, in the method of constructing an underground structure using a PC truss wall structure according to the present invention, the construction method includes: (a) placing abandoned concrete; , (B) Displaying the position of PC truss wall structure and wall rebar, lower anchor and foundation rebar interference part, (c) Arranging the base rebar and wall rebar avoiding the interference part Installing a water stop valve at the joint, (d) placing and curing foundation concrete, (e) displaying the PC truss wall structure, lower anchor, and column position; (f ) After piercing the lower anchor, the PC truss wall structure having the above-described components is integrally set up as a unit, vertically set up, moved integrally at the installation position, and installed ( g) Using lower anchor and PC truss wall structure, lower connecting iron A method coupled Te, is applied by step (h) above (e) to the step (f) is repeated continuously PC truss wall structure is installed.

In addition, in order to additionally reinforce an underground structure using a PC truss wall structure with respect to the construction method, (i) a reinforcing bar P is additionally arranged for the plate-plate connection and the necessary section. A stage in which reinforcing bars P are additionally arranged in a section connecting a plurality of PC panels arranged in line with each other and a section requiring reinforcement, j) A gap between a plurality of PC panels arranged side by side in a stage where a back-up material and caulking work and a mortar construction from a lower part of the wall body to a predetermined height are performed with respect to the gap between the walls. A backup material and caulking work and a stage in which mortar construction is performed from the lower part of the wall body to a predetermined height, and (k) a pillar member and a guard member are installed, and the upper side of the pillar member, guard member and wall body member Install slab members on Placing the slab rebar after placing, (l) placing the concrete on site in the upper part of the slab member and the central part formed by the tensile PC panel 10 and the compression PC panel 20; The steps (i) to (l) are continuously repeated to reinforce the PC truss wall structure.
At this time, according to a preferred embodiment of the present invention, a PC slab is placed on the upper free end of the PC panel of the PC truss wall, and the central space between the PC panels and the PC slab On-site concrete can also be placed on top.

  Next, FIG. 28 to FIG. 36 are drawings showing the construction method in detail. As shown in FIG. 28, a crane is connected to the upper side of the PC truss wall structure, and the rubber difference is not shown on the lower side. In order to prevent the wall structure from being damaged when it is stood up.

  Next, as shown in FIG. 29 and FIG. 30, a hypothetical support is added at a predetermined position of one side end portion of the PC truss wall structure to prevent the wall structure from falling down. In order to prevent the gap between the wall structures from being exposed to the outside environment as shown in FIG. 31, the outside is filled with a caulking agent, and a backup material is added inside. It is filled with double.

Next, if the PC truss wall structure is completely fixed from the ground as shown in FIG. 32, the wall as shown in FIG. 33 and FIG. On the upper side of the body structure, a water stop valve, an upper part of the wall body and a slab reinforcing bar are additionally assembled. In addition, a reinforcing bar for shearing and a main reinforcing bar are additionally arranged.
When the above-described steps are completed, the on-site concrete is additionally placed between the tensile PC panel 10 and the compression PC panel 20 as shown in FIG. 35, as shown in FIG. In addition, a waterproof supplementary operation is performed between the gaps.
In order to display the position of the PC truss wall structure at the installation position of the PC truss wall structure in the foundation concrete placing and curing stage (d stage) of the method, the position of the ink rope work and the truss interference part is additionally displayed.

On the other hand, a lower fixing bolt is additionally installed on the lower connecting iron 50 so that the lower end portion of the PC truss wall structure is resistant to wind load or impact load on the foundation concrete. There is an advantage that it can be fixed firmly and more stably.
When the installation is completed as described above, the waterproof complement is additionally promoted to the outside of the PC truss wall structure, and the waterproof complement is combined with the portion joined to the slab structure and the ground. In addition, there is an advantage that the internal water-tightness and durability can be further increased by additionally performing the construction on the part to be joined to the part to be joined to each PC truss wall structure.

  On the other hand, FIG. 39 is a drawing showing a sleeve installation procedure of the PC truss wall structure, in which the wall assembly is performed in the first stage, and the exposed reinforcing bar exposed to the outside is removed in the second stage. In the third stage, the reinforcing bars are installed and the position of the sleeve is fixed. In the fourth stage, the formwork is installed and then placed using the raw control board. In the fifth stage, the formwork is installed. The installation will be completed by removing the area and rearranging the surrounding area.

As described above, the present invention connects the first and second vertical rails buried in the PC panel and the truss connecting material formed after the horizontal material and the inclined material between the PC panels are arranged in the form of truss. It is produced with an internal and external wall body using a ruminator. Accordingly, the PC truss wall structure according to the present invention is sufficiently resistant to various external forces such as support, etc. during transportation, standing up, wind load, impact load, upper member stationary, wall and slab simultaneous placement. There is an advantage that a separate temporary material is not required, there is no limitation on the thickness and height of the wall, and it can be applied not only to the outer wall of the structure but also to the inner wall and the multilayer wall. In addition, the present invention has an advantage of having a structure in which a wall body and a slab can be placed simultaneously without a false work.
Accordingly, the foregoing embodiments are illustrative in all aspects and are not limiting, and the scope of the present invention is manifested by the following claims rather than the foregoing detailed description. The All modifications and variations that can be derived from the equivalent concept as well as the meaning and scope of the claims are included in the scope of the present invention.

10 PC panel for tension 20 PC panel for compression 30 Truss connecting material 31a, 31b First and second vertical rails 32 Horizontal material 33 Inclined material 40 On-site concrete

Claims (13)

  1. A plurality of PC panels are separated from each other by a predetermined distance, and are standing up and looking away from each other. A space formed in the central part is separated by a distance from the center, and an underground structure such as a wastewater treatment plant is placed. In the PC wall structure forming the object wall structure,
    The PC wall structure is made of a precast concrete panel having a predetermined thickness and standing vertically on a foundation concrete, and a plurality of panels are continuously installed side by side. The plurality of tensile PC panels 10 are installed at positions corresponding to the plurality of tensile PC panels and separated by a predetermined distance, and are vertically set on the foundation concrete to have a predetermined thickness. A plurality of compression PC panels 20 which are made of a square-shaped precast concrete panel and in which a plurality of panels are continuously arranged side by side, and the tension PC panel 10 separated by the predetermined distance and the compression The PC panel is connected to the truss connecting member 30 so as to behave integrally, and the truss connecting member 30 is buried inside the tensile PC panel 10 and installed. The first vertical rail 31a, the second vertical rail 31b installed buried in the compression PC panel 20, and the tensile PC panel and the compression PC panel behave integrally with each other. The first and second vertical rails are connected in a horizontal direction so as to be able to perform a plurality of horizontal members 32 installed in a vertical direction at a predetermined interval, and a load applied to the tensile PC panel and the compression PC panel Each of the PC panels 10 and 20 includes a plurality of truss connecting members including a plurality of inclined members 33 connected in a tilted direction between the plurality of horizontal members 32 so as to effectively disperse the plurality of horizontal members 32. Installed, the other end of the horizontal member of the truss connecting material adjacent to the one end of the horizontal member of the one truss connecting member is an external force in the length direction at the time of transportation, lifting and standing of the PC wall structure. Minimizing horizontal displacement with respect to PC truss wall structures safety, characterized in that the cross connecting member is included in the add so that is enhanced.
  2. Between the horizontal member or the inclined member and the first and second vertical rails, the horizontal member or the inclined member and the first and second vertical rails are connected to each other so that an area to be joined is maximized. The PC truss wall structure with enhanced safety according to claim 1, wherein the first and second connecting members 35 a and 35 b are additionally installed.
  3. The safety PC according to claim 1, wherein the tension PC panel 10 is formed higher than the compression PC panel 20 so as to form an outer wall in a wall structure of an underground structure such as a 16 wastewater treatment plant. PC truss wall structure with enhanced strength.
  4. A lifting plate 36 is additionally installed on the upper free ends of the pulling PC panel 10 and the compression PC panel 20 so that a lifting cable can be connected to the PC panel 20 for compression. The PC truss wall structure with enhanced safety according to claim 3, wherein the lifting plate installed on the upper free end additionally performs a PC slab stopper role.
  5. 5. The safety according to claim 4, wherein a PC slab is placed on the upper free end of the compression PC panel 20, and concrete in the field is simultaneously placed on the central space between both PC panels and the PC slab. PC truss wall structure with enhanced strength.
  6. 2. The tensile PC panel 10 and the compression PC panel 20 are formed at an equal height so as to form an inner wall in a wall structure of an underground structure such as a wastewater treatment plant. PC truss wall structure with enhanced safety as described in 1.
  7. A lifting plate 36 is additionally installed on the upper free ends of the pulling PC panel 10 and the compression PC panel 20 so that a lifting cable can be connected. The lifting plate is a PC slab. The PC truss wall structure with enhanced safety according to claim 6, which additionally performs a stopper role.
  8. A PC slab is placed on the upper free ends of the pulling PC panel 10 and the compression PC panel 20, and on-site concrete is simultaneously placed on the central space between the PC panels and the PC slab. Item 8. A PC truss wall structure with enhanced safety according to Item 7.
  9. 2. The safety according to claim 1, wherein lower ends of the tensile PC panel 10 and the compression PC panel 20 are bolted to a base portion by a lower connecting iron 50 so as to resist wind load or impact load. Reinforced PC truss wall structure.
  10. The safety according to claim 1, wherein a truss guard for shear reinforcement of the wall body is additionally installed on the inner surfaces of the tensile PC panel 10 and the compression PC panel 20 that match each other. PC truss wall structure.
  11. In the method of constructing an underground structure using the PC truss wall structure according to any one of claims 1 to 10,
    The construction method includes (a) placing abandoned concrete, (b) displaying the positions of the PC truss wall structure and wall reinforcing bar, the lower anchor and the foundation reinforcing bar interference part, and (c) interference. Laying the foundation rebars and wall rebars away from the section and installing a water stop valve at the construction joint, (d) placing and curing the foundation concrete, and (e) the PC truss wall The stage of displaying the structure, the lower anchor, and the column position, and (f) after drilling the lower anchor, the PC truss wall structure was united as a unit and vertically upright and moved to the installation position. A step of being installed later, (g) a step of bolting the lower anchor and the PC truss wall structure using a lower connecting iron, and (h) steps (e) to (f) And repeatedly installing the PC truss wall structure in a continuous manner. Truss wall structures underground structure construction method using.
  12. In order to additionally reinforce an underground structure using the PC truss wall structure, (i) a section for connecting a plurality of PC panels arranged in line with each other and reinforcement are necessary. A stage in which reinforcing bars P are additionally arranged with respect to a section, and (j) a backup material and a caulking operation and a wall with respect to a gap between a plurality of PC panels arranged so as to be aligned with each other Mortar construction from the lower part of the body to a predetermined height, and (k) the slab reinforcing bar after the column member and the guard member are installed and the slab member is installed on the upper side of the column member, the guard member and the wall member. And (l) placing concrete on-site at the same time without any joints in the upper part of the slab member and in the central part formed by the PC panel 10 for tension and the PC panel 20 for compression, and (m) Steps (i) to (l) above There underground construction construction method using the PC truss wall structure according to claim 11 comprising steps a, a continuously repeated by PC truss wall structure is placed is reinforced.
  13. The PC slab is placed on the upper free end portion of the PC panel of the PC truss wall body, and the concrete in the field is simultaneously placed on the central space between both PC panels and the PC slab. Underground structure construction method using PC truss wall structure.
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KR101630238B1 (en) 2016-06-14

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