KR101640079B1 - Deckplate using end anchorage device and the composite slab construction method therewith - Google Patents

Deckplate using end anchorage device and the composite slab construction method therewith Download PDF

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Publication number
KR101640079B1
KR101640079B1 KR1020160014207A KR20160014207A KR101640079B1 KR 101640079 B1 KR101640079 B1 KR 101640079B1 KR 1020160014207 A KR1020160014207 A KR 1020160014207A KR 20160014207 A KR20160014207 A KR 20160014207A KR 101640079 B1 KR101640079 B1 KR 101640079B1
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KR
South Korea
Prior art keywords
deck plate
fixing
tension
transverse direction
prestress
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KR1020160014207A
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Korean (ko)
Inventor
김형준
송종욱
송경철
김도균
경제환
최성모
Original Assignee
주식회사 목양종합건축사사무소
서울시립대학교 산학협력단
주식회사 제일테크노스
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Priority to KR1020160014207A priority Critical patent/KR101640079B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)

Abstract

The present invention relates to a deck plate installed between beams installed between pillars and a composite slab constructed by slab concrete deposited on an upper portion of the beams and the deck plate, and more specifically, to a deck plate using an end tension device and a composite slab construction method using the same which effectively offsets a weight applied to the deck plate by introducing preload and prestress to improve structural performance and fire resistant performance. The deck plate using an end tension device comprises: a tendon extended in an inner longitudinal direction of a composite slab to be positioned on a lower portion of a neutral axis of the composite slab; and an end fixing device extended and installed on an inclined end surface of the deck plate in a transverse direction to disperse prestress introduced by the tendon on the inclined end surface.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a deck plate using an end tension device and a method of constructing a composite slab using the deck plate,

The present invention relates to a deck plate using an end tension device and a composite slab construction method using the deck plate. More specifically, a deck plate installed between the beams and a beam installed between the beams, and a composite slab installed by the slab concrete placed on the beams and deck plates, And more particularly, to a deck plate using an end tension device capable of improving the structural performance and the refractory performance by effectively canceling the load by the introduction of a preload and a prestress, and a composite slab construction method using the deck plate.

Generally, in the field of building materials, a deck plate is a metal plate such as a galvanized steel plate for forming a structure without being disassembled even after the concrete is laid, as a substitute for a mold in constructing a slab (also called a bottom plate) Plate material is a material for slabs.

When the slab is constructed using such a deck plate, the time and cost required for the construction work such as the formwork construction can be reduced because the slab concrete construction formwork (mold) is not required, and the unit length product can be continuously Since the slab construction is carried out only by fixing the fixture, the construction can be made quick and the deck plate has various advantages such as securing a certain quality or more by using the factory produced product.

Recently, there has been an increasing tendency to construct a slab using a deck plate as described above.

Furthermore, if a fire occurs in a building where the slab is installed, the fire can cause the concrete to be spalled, and if the concrete is flared, it is affected by the structural member enclosing the concrete such as the sidewalk flame.

Therefore, if the stiffness of the beam supporting the deck plate and the weight of the slab concrete to which the reinforcing bars are laid is lowered due to the flame, the building will eventually collapse.

In order to prevent the rigidity of the beam made of the steel by the flame from being lowered, the deck plate is coated with a spray material for heat shielding.

However, there is a problem in that, in the case of the heat resistance refractory method using such a spray material, there is a problem of securing the quality of the spraying thickness, which requires precise quality control (workability and workability) .

In addition, a refractory board is attached to a portion of the composite slab including the central portion of the deck plate to prevent the lowering of rigidity due to the temperature rise of the slab, .

Also, as a conventional fireproof method, a deflection control method for preventing deflection of a center portion of a beam is disclosed.

That is, in the case of the conventional composite slab, as the gap between the beam and the beam dedicated to the load is increased, the center deflection increases in the event of a fire, so that the life of the slab is damaged due to the collapse of the slab.

In order to control the deflection of the center of the beam, a technology for controlling the deflection of the center through a tension member (tent) for introducing the prestress into the web of the beam has been applied.

In other words, it is a method of introducing a prestress into the beam to compensate for the decrease in stiffness due to the flame, rather than forming a fireproof board or a refractory board.

However, in the case of relatively stiff beams, it is possible to control the center deflection through the above tension members (PC strand, steel bar, etc.), but application of the deck plate is limited.

The reason for this is that the deck plate is a slab material made of a thin plate and is often made of a bending panel, so that when a strong prestress of a tensile material is introduced into the deck plate, the structural performance of the deck plate is not easily predicted .

Span span slabs that do not require aerospace type for spraying and fireproofing boards on the deck plate can be provided by ensuring the fire resistance of beam and deck plate through control of long span slab deflection through wire rope Has been introduced.

That is, as shown in Fig. 1,

A deck plate 12 provided between the beam 11 and the beam 11; A wire rope 20 connected to an intermediate portion of the deck plate 12 and having both ends extended and fixed to a beam 11 located above the deck plate; And a slab concrete (13) formed on the beam (11) and the deck plate (12), so that the load transmitted from the deck plate is dispersedly transferred to the beam via the wire rope, ,

The beam 11 is composed of an upper flange 11b and a lower flange so that an end of the deck plate is supported by the lower flange 11c and both end portions of the wire rope extend from the upper surface To be fixed,

One end of both ends of the wire rope 20 is fixedly fixed to the upper part of the beam and the other end is tension-fixed to the upper part of the beam to pour and cure the slab concrete, and the tension of the tensioned wire rope is released, And the prestress is introduced into the slab concrete.

However, when such a wire rope is used, it is necessary to install a stopping device on the deck plate in order to prevent a concentrated stress for tension and fixing, so there is a restriction on securing tension and settlement area, and an anchor for tensioning and fixing wire rope And when a prestress is introduced by a wire rope, a fixing device and a fixing device must be installed in the beam more than a tent, so that there is a problem that distortion due to a concentrated stress may occur.

The present invention provides a composite slab constructed by a beam installed to be supported by a column, a deck plate installed on the beam, and a slab concrete placed on the deck plate,

 It is possible to more effectively control deflection of the composite slab to improve the refractory performance of the composite slab and to introduce the prestress without fixing and fixing the beam to the beam, And a method of constructing a composite slab using the deck plate using the end tension device capable of improving the efficiency of introducing a prestress.

According to an aspect of the present invention,

First, the members of long-span composite slabs, which are exposed to flames in the event of a fire, and whose stiffness is reduced, can be referred to as deck plates, except for the slab concrete being exploded. In order to control deflection of the center portion of the deck plate, a tension member (tent) is used in the present invention.

These tensions refer to reinforcing bars, steel rods, PC strands, etc. Especially, they are placed at the bottom of the deck plate so that they have the effect of introducing prestress by eccentric moment.

Secondly, although the load transmitted from the deck plate to the beam by deflection of the deck plate is concentrated and transmitted to the lower flange of the beam, the present invention can be applied to the fixing and fixing apparatus of the tension member, (End tension device), so that the concentrated stress due to the introduction of the prestress can be effectively controlled.

As a result, the fire resistance of the deck plate and the bottom slab is greatly improved by the tension member and the end tension device, so that the fireproof performance of the beam supporting the slab is greatly increased.

According to the present invention

First, it is possible to further secure the fire resistance of the beam and deck plate by controlling the long span slab deflection through the tension member and the end tension device. This makes it possible to provide long-span slabs that do not need to be shoehorned or fire-resistant boards to be installed on the deck plate.

Secondly, the load transmitted from the deck plate through the end tension device can be dispersed in the deck plate without being dispersed and transmitted to adjacent beams or columns, and the deck plate made of thin plates can be prevented from having a structural effect, It is possible to provide a long span slab capable of further increasing the long span of the span span.

Third, the prestress introduced by the tension member can be pro-loaded for controlling deflection of the deck plate, thereby enabling more efficient long span slabs to be provided.

FIG. 1 is a perspective view of a composite slab using a wire rope,
FIG. 2A is an exploded perspective view of a deck plate using the end tension device of the present invention,
FIG. 2B is an illustration of an example of preloading a deck plate using the end tension device of the present invention,
FIG. 2c is a functional sectional view of a refractory method of a composite slab using the end tension device of the present invention,
3 is a view showing a deck plate using the end tension apparatus according to the present invention and a construction drawing by a composite slab construction method using the deck plate.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely examples of the present invention and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

[Composite Slab (100) Using End Tension Apparatus of the Present Invention)

FIG. 2A is an exploded perspective view of a deck plate 120 using the end tension device of the present invention, and a composite slab 100 using the end tension device of the present invention will be described with reference to FIG.

As shown in FIGS. 2A and 3, the composite slab 100 includes a beam 200 mounted on the column 300, a deck plate 110 installed between the beams and the beam, Slab concrete (120).

It is noted that the beam 200 is made of, for example, an H-shaped steel frame, and is formed of the upper flange 210, the abdomen 220, and the lower flange 230.

The beam 200 is installed between the column 30 and the column 300 in such a manner that both ends of the column 200 are connected to the column so that the column 300 and the beam 200 support the composite slab 100 .

At this time, a deck plate 110 is installed between the lower flanges 210 of the beam 200.

That is, the deck plate 110 used for the composite slab typically has a bending portion 112 formed between the horizontal portion 111 and the horizontal portion 111 so as to support both ends between the lower flange of the beam and the beam It can be seen that a deck plate formed continuously is installed.

In this case, the long span composite slab is a shape in which the extension distance of the deck plate becomes long due to a long span between the beam and the beam.

Further, a slab concrete 120 is laid on the upper part of the deck plate 110 and the upper part of the beam 200, and the slab reinforcing bars 121 are arranged in a lattice form inside.

It can be seen that the weight of the slab concrete 120 including the slab reinforcement 121 and the weight of the deck plate 110 are transmitted to the entire beam 200 through the lower flange 213 of the beam 200.

In this case, if a fire occurs after the composite slab 100 is constructed, if the fire continues to the extent that the water inside the slab concrete is expanded by the flame and the slab concrete is burst, the slab concrete effectively acts as a structural member for supporting the load And only the load due to the weight is transferred to the beam 200.

At this time, if the beam 200 is also exposed to the flame, the rigidity is lowered. If the load burden due to the slab concrete 120, which does not exhibit the load supporting performance due to the explosion, is added, the load supporting performance that the beam 200 can support Which can lead to the collapse of buildings.

The refractory method of the composite slab 100 focuses on preventing the load supporting performance of the deck plate 110 and the beam 200 from falling sharply even if the flame is exposed to the fire.

Especially in the long span composite slab, since the extension length of the deck plate 110 is generally long, the amount of the slab concrete 120 to be installed is increased so that the load transmitted to the beam 200 is also reduced by the lower flange 210 ).

The concentrated transfer of the load may lead to a sudden load bearing performance deterioration of the beam 200. Thus, the present invention can be applied to a deep deck plate (deck plate having a large sectional height, for example, deck plate having a sectional height of 350 mm or more, The present invention further uses the tension member 130 and the end fixing device 140 to resist the load transmitted to the deck plate.

Such a tensile member 130 may be a reinforcing bar, a steel bar for tension members, or a PC stranded wire (unbonded strand, etc.).

At this time, the tension member 130 is disposed at a lower portion of the space in the extending direction (longitudinal direction as a longitudinal direction) of the space above the horizontal portion 111 of the deck plate 110, and a separate space It is possible to improve the effect of introducing the prestress by the eccentricity by arranging the tensile material in the lower portion of the neutral axis of the composite slab.

Both ends of the tension member 130 are fixed to the end surface of the deck plate 110 after tension.

In particular, since the end face of the deck plate 110 is formed as an inclined portion, it is difficult to use the end face of the deck plate 110 as a fixing portion of a horizontally extended tension member. Especially, when concentrated stress due to fixing of the tension member 130 acts on the end face of the inclined end portion, The deck plate may be deformed or warped.

In order to disperse the concentrated stress and to prevent the beam 200 and the column 300 from being affected by the concentrated stress, the present invention uses the end fixing apparatus 140.

The function of the end fixing device 140 is to form a vertical fixing surface for tensioning and fixing the tension member on the inclined end face of the deck plate and to form a function of dispersing the concentrated stress due to the post- do.

As shown in FIG. 2A, the end tension device 140 includes an inclined reinforcing plate 141, a transverse direction fixing member 142, and a fixing member 143.

As shown in FIG. 3, the inclined reinforcing plate 141 serves as a reinforcing member for generating concentrated stress at the inclined end face of the deck plate 110, which is made of a thin plate, and supports the laterally fixed fixing stage 142 It becomes a member.

The inclined reinforcing plate 141 is provided to be in contact with the inclined end face of the bent portion 112 by using the angle member, thereby increasing the thickness of the inclined end face.

Next, the transverse direction fixing unit 142 uses an angle member extending in the transverse direction while being in contact with the upper surface of the inclined reinforcing plate 141, and the vertical fixing surface 143 is formed on the upper surface of the inclined reinforcing plate 141 It can be seen that an angular member is used.

Further, the transverse direction fixing end 142 is formed with a tension member hole 144 so that the end of the tension member 130 can be penetrated.

The fixing port 143 is fixed to the transverse fixing end 142 after tension using a tensile jack or the like not shown at the end of the tension member 130 passing through the tension member hole 144 of the transverse direction fixing end 142 It can be said to be a fixing means including a fixing nut.

If a plurality of the tension members are fixed to the transverse direction fixing unit 142 after fixing them using the fixing unit, it is possible to introduce the necessary prestress into the deck plate 110. This introduction of the prestress is caused by an action load due to the long span of the deep deck plate It is possible to effectively cancel the bending moment caused by the deformation of the deep deck plate and secure the structural performance and fire resistance of the deep deck plate more reliably.

[Preloading of the composite slab using the end tension device of the present invention]

Figure 2b is an illustration of preloading of composite slab 100 using the end tension device 140 of the present invention.

That is, since the deck plate using the conventional wire rope as shown in Fig. 1 allows the wire rope to be installed on the upper surface of the beam, it has a disadvantage in that it is impossible to manufacture the deck plate into which the prestress is introduced in advance.

That is to say, even if the deck plate 110 is made of a deep deck plate before being combined with the slab concrete 120, when it is installed over a long span, a bending moment is generated when the beam is installed and deflection occurs due to its own weight.

Accordingly, in order to perform a soot treatment capable of offsetting deflection due to its own weight, the present invention preliminarily fixes, for example, a part of the tensile material 130 before the slab concrete 120 is poured, So that the center portion of the composite slab 110 is raised upwardly, thereby canceling deflection caused by the self weight, thereby making it possible to construct a composite slab using a more efficient end tension device.

[Deck Plate Using End Tension Apparatus of the Present Invention and Construction Method of Composite Slab Constructed Using the Same]

FIG. 3 shows a deck plate using the end tension device of the present invention and a composite slab construction diagram constructed using the deck plate.

As shown in FIG. 3, first, a column 300 and a beam 200 are installed,

The tension member 130 and the end fixing unit 140 are installed in advance in the deflection plate 110 between the beam and the beam and the tension member 130 and the end fixing unit 140 ) To introduce a prestress to cause the upward thrust by the prestress to occur.

Thus, the slab reinforcement is placed on the upper portion of the beam and the deck plate, and the slab concrete 120 is installed to fill the slab reinforcement.

As a result, it can be seen that the deck plate 110 equipped with the tension member 130 and the end fixing device 140 according to the present invention can be installed immediately after being manufactured by segmenting in advance in a factory, thereby enabling quick construction.

As a result, the present invention improves the refractory performance of the composite slab by controlling the deflection at the intermediate portion of the composite slab where the deflection is the greatest in the long span composite slab through the tension member and the end fixing device, either the post tension method or the pre- It can be seen that

This deflection control can be achieved by fixing the tension member to the end fixing device installed on the inclined end face of the deck plate after tensioning and dispersing the tension member to the entire end face of the deck plate. Further, the prestress can be introduced in advance, It can be seen that more efficient reinforcement performance can be secured without additional impact on the surrounding pillar or columns by further reinforcing the tension reinforcement.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Synthetic slab
110: deck plate
111: horizontal part 112: bent part
120: Slab concrete 130: Tension material
140: End fixing device 200:
210: upper flange
220: abdomen 230: bottom flange
300: Column

Claims (8)

A tension member (130) arranged to extend in the medial longitudinal direction so as to be positioned below the neutral axis of the composite slab; And an end fixing device 140 extending transversely to the inclined end face so that the prestress introduced by the tension member can be dispersed on the inclined end face of the deck plate,
The end fixing device 140 is installed to be in contact with the inclined end face of the bent portion 112 using the angle member to increase the thickness of the inclined end face so that concentrated stress is applied to the inclined end face of the deck plate 110 An inclined reinforcing plate 141 serving as a supporting member for supporting the transverse direction fixing member 142 while acting as a reinforcing member according to the occurrence of the occurrence of the deflection; An angle member 144 is formed on the upper surface of the inclined reinforcing plate 141 so as to form a vertical fixing surface 143 in contact with the upper surface of the inclined reinforcing plate 141, A transverse direction fixing member 142 for fixing the transverse direction fixing member 140; And a fixation port 143 for fixing the end of the tension member 130 passing through the tension member hole 144 of the transverse direction fixing end 142 to the transverse direction fixing end 142 after the tension,
A plurality of tension members are fixed to the transverse direction fixing unit 142 after fixing by using a fixing unit so that a prestress is introduced into the deck plate 110 to offset the bending moment due to the action load due to the long span of the deck plate, Deck plate using an end tension device to ensure the structural performance and fire resistance of the deck plate. The method according to claim 1,
Wherein the tension member (130) is located below the bend (112) between the horizontal portion and the horizontal portion of the deck plate. delete The method according to claim 1,
The deck plate is constructed such that the prestress is introduced into the deck plate before the deck plate is installed between the beams, so that deflection due to the weight of the deck plate can be canceled. A tension member (130) arranged to extend in the medial longitudinal direction so as to be positioned below the neutral axis of the composite slab; And an end fixing device (140) extending in the transverse direction on the inclined end surface so that the prestress introduced by the tension member can be dispersed on the inclined end surface of the deck plate. And
And a beam 200 installed between the deck plates 100 using the end tension apparatus. The deck plate 100 is installed on the top surface of the beam 200 and the deck plate 100 using the end tension apparatus, A concrete (120)
The end fixing device 140 is installed to be in contact with the inclined end face of the bent portion 112 using the angle member to increase the thickness of the inclined end face so that concentrated stress is applied to the inclined end face of the deck plate 110 An inclined reinforcing plate 141 serving as a supporting member for supporting the transverse direction fixing member 142 while acting as a reinforcing member according to the occurrence of the occurrence of the deflection; An angle member 144 is formed on the upper surface of the inclined reinforcing plate 141 so as to form a vertical fixing surface 143 in contact with the upper surface of the inclined reinforcing plate 141, A transverse direction fixing member 142 for fixing the transverse direction fixing member 140; And a fixation port 143 for fixing the end of the tension member 130 passing through the tension member hole 144 of the transverse direction fixing end 142 to the transverse direction fixing end 142 after the tension,
A plurality of tension members are fixed to the transverse direction fixing unit 142 after fixing by using a fixing unit so that a prestress is introduced into the deck plate 110 to offset the bending moment due to the action load due to the long span of the deck plate, A composite slab constructed using a deck plate using an end tension device to ensure the structural performance and fire resistance of the composite slab. 6. The method of claim 5,
Before the installation of the slab concrete, a tensile reinforcement is further placed around the tensile material 130 of the deck plate 100 using the end tension device, and then an end tension device Composite slabs constructed using deck plates. 6. The method of claim 5,
The beam 200 is connected to the column 300 so that the load transmitted from the deck plate is transmitted to the beam and the column. (a) installing a column (300) and a beam (200); And
(b) a tensional element (130) arranged to extend in the medial longitudinal direction so as to be located below the neutral axis of the composite slab; And an end fixing device 140 extending transversely to the inclined end face so that the prestress introduced by the tension member can be dispersed on the inclined end face of the deck plate. Installing a deck plate using an end tension device between the beams and the beams in a state in which a prestress is introduced by using the tension member 130 and the end fixing device 140 to generate an upward bulge by a prestress;
(c) placing the slab concrete (120) on top of the beam and deck plate,
The end fixing device 140 of the step (b) is installed to be in contact with the inclined end face of the bending part 112 by using the angle member to increase the thickness of the inclined end face, An inclined reinforcing plate 141 serving as a supporting member for supporting the transverse direction fixing member 142 while acting as a reinforcing member due to a concentrated stress at a side surface thereof; An angle member 144 is formed on the upper surface of the inclined reinforcing plate 141 so as to form a vertical fixing surface 143 in contact with the upper surface of the inclined reinforcing plate 141, A transverse direction fixing member 142 for fixing the transverse direction fixing member 140; And a fixation port 143 for fixing the end of the tension member 130 passing through the tension member hole 144 of the transverse direction fixing end 142 to the transverse direction fixing end 142 after the tension,
A plurality of tension members are fixed to the transverse direction fixing unit 142 after fixing by using a fixing unit so that a prestress is introduced into the deck plate 110 to offset the bending moment due to the action load due to the long span of the deck plate, A composite slab construction method using a deck plate to secure the structural performance and fire resistance of the composite slab.
KR1020160014207A 2016-02-04 2016-02-04 Deckplate using end anchorage device and the composite slab construction method therewith KR101640079B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104345A (en) * 2018-01-08 2018-06-01 齐齐哈尔大学 A kind of large-span prestressed lightweight aggregate concrete superimposed sheet
KR101989167B1 (en) * 2018-11-23 2019-09-30 한국건설기술연구원 Composite hollow beam using dual-web and construction method therewith

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JPH0266248A (en) * 1988-09-01 1990-03-06 Nippon Steel Metal Prod Co Ltd Deck plate closed in end part and manufacture thereof
KR20060003904A (en) * 2003-05-13 2006-01-11 오프쉴드 리미티드 Flooring
KR20140065918A (en) * 2012-11-22 2014-05-30 김영기 Hybrid reinforced concrete floor structure and the method thereof

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Publication number Priority date Publication date Assignee Title
US3712010A (en) * 1970-08-17 1973-01-23 Univ Iowa State Res Found Prestressed metal and concrete composite structure
JPH0266248A (en) * 1988-09-01 1990-03-06 Nippon Steel Metal Prod Co Ltd Deck plate closed in end part and manufacture thereof
KR20060003904A (en) * 2003-05-13 2006-01-11 오프쉴드 리미티드 Flooring
KR20140065918A (en) * 2012-11-22 2014-05-30 김영기 Hybrid reinforced concrete floor structure and the method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104345A (en) * 2018-01-08 2018-06-01 齐齐哈尔大学 A kind of large-span prestressed lightweight aggregate concrete superimposed sheet
CN108104345B (en) * 2018-01-08 2020-02-07 齐齐哈尔大学 Large-span prestressed lightweight aggregate concrete superimposed sheet
KR101989167B1 (en) * 2018-11-23 2019-09-30 한국건설기술연구원 Composite hollow beam using dual-web and construction method therewith

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