CN102388191A - Truss-type shear reinforcement material having double anchorage functions at both top and bottom thereof - Google Patents
Truss-type shear reinforcement material having double anchorage functions at both top and bottom thereof Download PDFInfo
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- CN102388191A CN102388191A CN2010800156700A CN201080015670A CN102388191A CN 102388191 A CN102388191 A CN 102388191A CN 2010800156700 A CN2010800156700 A CN 2010800156700A CN 201080015670 A CN201080015670 A CN 201080015670A CN 102388191 A CN102388191 A CN 102388191A
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- truss
- shearing resistance
- anchor head
- strenthening member
- lower edge
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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
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- 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
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- 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
- E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
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- 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
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
Abstract
The present invention relates to a shear reinforcement material of a reinforced concrete structure, which is installed in a reinforced concrete structure to increase resistance against shear failure. The truss-type shear reinforcement material having double anchorage functions at both top and bottom thereof is configured by installing double anchor heads on the top and the bottom of a truss (20), which is formed by connecting an upper member (24) with a lower member (26) through connection members (21) such as vertical members (22) or inclined members (23).; Therefore, the shear reinforcement material according to the present invention can improve shear resistance, shear reinforcement and ductility, because upper anchor heads (34) and the upper member (24) carry out a double anchorage function on the top while lower anchor heads (44) and the lower member (26) carry out a double anchorage function on the bottom, and furthermore, improves construction quality as building a concrete structure becomes more convenient.
Description
Technical field
The present invention relates to a kind of truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively; Specifically provide a kind of and be located at reinforced concrete structures, be used to strengthen shearing resistance strenthening member for the reinforced concrete structures of the resistance of shear failure; Through anchor head being set at the upper and lower sides that connects the truss that wind up part and lower edge spare form by vertical member or dip member; Improve shearing resistance, shearing resistance reinforcing and ductile performance; Make the construction of concrete structure convenient, simultaneously, can improve construction quality.
Background technology
Reinforced concrete structures, particularly plate, beam, post, wall and the sleeper beams etc. that use reinforcing bar to construct with concrete are necessary to increase shearing endurance, therefore, are used to strengthen the shearing resistance strenthening member of shear behavior and construct.For example, in reinforced concrete structures, strong shearing force takes place along the post periphery in the joint portion (dosseret) of plate and post handing-over, when insufficient, shear failure takes place probably for the endurance at this position.Particularly, crossbeam or girder rely on the slabbed construction of the direct gripper shoe of post in that not being set; The joint portion of plate and post; Such as Korea S's publication publication number 10-2007-0053836 number " joint portion shearing resistance strenthening member and manufacturing approach thereof between the post plate " and patent trade mark publication number 10-0676627 number " shearing resistance of sheet-pile joint portion adds solid and utilizes this shearing resistance to add the shearing resistance ruggedized construction of solid " etc. prompting; The joint portion that is different from general beam and column; The plate generation overstress concentration phenomenon of post periphery causes forming the twocouese shear failure (punching press shear failure) against trapezoidal image.This kind shear failure is different from the collapse state of other forms, and is extremely fragile, quite fatal to the safety of plate and post joint portion, therefore, during structure design, needs this partitive case is noted outward, takes abundant measure to prevent the generation of shear failure.
Fig. 1 is the drawing that the shearing resistance strenthening member of using for the shear behavior of reinforcing steel bar concrete structure, especially plate and post joint portion is described.The drawing of the problem points that Fig. 2 is occurred when being setting and the stress counter-rotating of explanation shearing resistance strenthening member as shown in Figure 1.
At this moment; Fig. 1 and 2 (a) are that explanation is used usually and pedaled the drawing of shape support 100 as shearing resistance strenthening member; Fig. 1 and 2 (b) are the drawings of the method for explanation as Korea S's publication publication number 10-2004-0076644 number " steel bar concrete reinforcement member and comprise the building method of the reinforced concrete structures of this member " institute's prompting use WELDING STUDS 200, and Fig. 1 and 2 (c) explain shear band 300 that use pointed out like Korea S's publication publication number 10-2007-0053836 number " joint portion shearing resistance strenthening member and manufacturing approach thereof between the post plate " and patent trade mark publication number 10-0676627 number " the shearing resistance strenthening member of sheet-pile joint portion and utilize the shearing resistance ruggedized construction of this member " drawing as the method for shearing resistance strenthening member.
With reference to Fig. 1 and Fig. 2; Shearing resistance strenthening member when shearing resistance reinforcement means in the past has the stress counter-rotating; Pedal shape support 100, WELDING STUDS 200 and shear band 300} deformed configurations, the significantly reduced problem points of shear behavior when therefore having the repeatability shear stress.In addition, must consider concrete overlay thickness during construction, but in fact be difficult to accurately meet this standard that final the existence, the bad or problem points of works performance reduction of construction took place.In addition, because on-the-spot single operation persons are difficult to be provided with, therefore, existence need be added to note, be difficult to the problem points of design condition up to specification.
Further specifically watch the problem points of technology in the past, at first, with pedaling the method that shape support 100 is used for shearing resistance strenthening member; Though be that bottom master's muscle 5 is set is not shown with top master's muscle 4{, also have the secondary muscle setting in top and the bottom } after, make and pedal shape support 100 around top and the bottom master's muscle 4,5; Form two ends and be bundled in the form of a main muscle, therefore, not only operating difficulties and operating time are long; Shown in Fig. 2 (a), when top stress expands, be bundled in the open effect in two ends (direction of arrow) of main muscle; Therefore, shear behavior significantly reduces during the repeatability shear stress.In addition; Shown in Fig. 2 (a); By plate 1 top 2 with following 3 regulation concrete overlay thickness L1, L2, the mode that shape support 100 is pedaled in this kind use should together consider to pedal the thickness of shape support 100, therefore; Owing to operational error, in fact be difficult to satisfy concrete cladding thickness L1, the L2 of defined.In addition, this kind mode is that top and the bottom reinforced steel { that is, the secondary muscle in top and the bottom master's muscle 4,5 and top and the bottom } moves the distance that is equivalent to pedal shape support 100 thickness by top 2 and following 3 of plate 1, and therefore, the anti-bending strength of works reduces.
In addition; The method that WELDING STUDS 200 is used for shearing resistance strenthening member is vertically set on closed slide 210 at certain intervals through following closely 220; The upper end that top 230 is located at nail 220 constitutes WELDING STUDS 200; To pedal the method that shape support 100 is used for shearing resistance strenthening member and compare with above-described, can in the setting operation process, expect to improve effect.Yet, the method that this kind is used for shearing resistance strenthening member with WELDING STUDS 200 have equally as previously discussed pedal problem points that shape support 100 produces { that is, shown in Fig. 2 (b); When top stress expands, take place by top 230 directions to the open effect in both sides (direction of arrow), therefore; Shear behavior reduces during the repeatability shear stress; In order to satisfy concrete overlay thickness L1, the L2 of defined, the operator needs especially to note, and top or bottom reinforced steel move the thickness that is equivalent to guide rail 210 by top 2 or following 3 of plate 1; Therefore, the works performance reduces }.
In addition; Shown in Fig. 1 (c); Shear band 300 is used for the method for shearing resistance strenthening member, through being rough pattern formation shear band 300 with sheet material { Korea S's publication publication number 10-2007-0053836 number " joint portion shearing resistance strenthening member and manufacturing approach thereof between the post plate " } or timber { registered patent notification number 10-0676627 number " the shearing resistance strenthening member of sheet-pile joint portion and utilize the shearing resistance ruggedized construction of this member " } are tortuous, will pedaling the method that shape support 100 is used for shearing resistance strenthening member and compare with aforesaid; Though can in the setting operation process, expect to improve effect; But when using timber, often take place to produce situation about disturbing, have the problem points of constructional difficulties with the arrangement of reinforcement of top and the bottom reinforcing bar; When using sheet material; For plate during pumping of concrete, shear band 300 interception concrete exist and concrete takes place fill bad problem points.Especially, when using the shear band 300 of sheet material, the concrete that shear band 300 is isolated pumpings, therefore, and because concrete isolation, the problem points that exists the intensity of sheet-pile joint portion to weaken on the contrary.And; The method that this kind is used for shearing resistance strenthening member with shear band 300 has the aforesaid problem points that shape support 100 and WELDING STUDS 200 are taken place of pedaling equally; And shown in Fig. 2 (c), take place simultaneously when existing stress to expand by the problem points of the open effect of lateral sides (direction of arrow) up and down.
Summary of the invention
The present invention studies in order to improve the aforesaid problem points of technology in the past; Its purpose is; Provide a kind of and shearing resistance strenthening member deformed configurations does not take place when reversing, can stablize the novel truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of guaranteeing shear behavior through stress.
In addition, the present invention also aims to, a kind of novel truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively is provided; When shearing resistance strenthening member is set; Even the operator does not consider concrete overlay thickness and shearing resistance strenthening member is set that concrete overlay thickness also can reach setting, thus; The time that the persons that can reduce the execute-in-place are paid in shearing resistance strenthening member setting operation; And the design condition of defined when easily satisfying construction, thus with shearing resistance strenthening member be provided with that the construction that is caused is bad to minimize, can improve the performance of works effectively.
In addition; The present invention also aims to; A kind of novel truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively is provided, is located at reinforced concrete structures, especially the position of plate and post combination; Or pedal the shape holder part, thereby strengthen resistance for shear failure with what alternative was located at beam, post, wall, foundation etc.
In addition; The present invention also aims to, a kind of novel truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively is provided, be located at reinforced concrete structures; Especially the position that combines of plate and post or with alternative be located at beam, post, wall, foundation etc. pedal the shape holder part time; Can effectively prevent the arrangement of reinforcement interference problem with reinforced steel, especially can effectively prevent the shear failure that takes place in plate and post joint portion from the shearing resistance reinforcing scope to be maximized.
Especially, the present invention also aims to, a kind of novel truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively is provided; Technology different from the past when constituting shearing resistance strenthening member, constitutes dual anchoring in top and the bottom; Thus; Even under the situation of stress repetition counter-rotating under the effect of lateral loads such as earthquake, the intensity and the ductility degree of also believable permission shear stress for pumping of concrete works { the especially joint portion of plate and post }, and further efficient hardening endurance.
In order to reach purpose as stated; The invention is characterized in; The present invention is being located at reinforced concrete structures, is being used for strengthening the shearing resistance strenthening member for the reinforced concrete structures of the resistance of shear failure; Comprise: truss 20 has part of winding up 24 and lower edge spare 26, and has the connecting elements 21 that connects said wind up part 24 and lower edge spare 26; Top anchor head 34 is fixedly connected with the part 24 that winds up of said truss 20 at the upside of said truss 20; And bottom anchor head 44, be fixedly connected with the lower edge spare 26 of said truss 20 at the downside of said truss 20.
This kind according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention in; Said connecting elements 21; Make the vertical member 22 of node 31 that combines with the said part 24 that winds up and the node 41 vertical formation that combine with said lower edge spare 26; In the dip member 23 that makes the node 31 that combines with the said part 24 that winds up and be staggered to form the node 41 that combines with said lower edge spare 26, form by any at least.
This kind according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention in; The connecting elements 21 of said truss 20 has at a certain distance the top partition 32 to the last side-prominent extension of the said part 24 that winds up; And has at a certain distance a bottom partition 42 to the following side-prominent extension of said lower edge spare 26; Said top anchor head 34 is isolated setting by the said part 24 that winds up at a certain distance through being combined in said top partition 32, and said bottom anchor head 44 is isolated setting by said lower edge spare 26 at a certain distance through being combined in said bottom partition 42.
This kind according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention in; Said top anchor head 34; Be fixed in the top partition 32 that the said part 24 that winds up, upside are fixed in said top anchor head 34 through downside; Isolated being provided with at a certain distance by the said part 24 of winding up, said bottom anchor head 44 is fixed in the bottom partition 42 that said lower edge spare 26, downside are fixed in said bottom anchor head 44 through upside, is isolated being provided with at a certain distance by said lower edge spare 26.
This kind according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention in; Said top partition 32 is fixed in the node 31 of said wind up part 24 and connecting elements 21 combinations, and said bottom partition 42 is fixed in the node 41 of said lower edge spare 26 and connecting elements 21 combinations.
This kind according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention in; The long-pending long-pending 7-14 size doubly of plane cross section that forms of the plane cross section of said top anchor head 34 with said top partition 32, the long-pending long-pending 7-14 size doubly of plane cross section that forms of the plane cross section of said bottom anchor head 44 with said bottom partition 42.
According to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention; Upper and lower sides with the truss 20 that forms with lower edge spare 26 at the part 24 that winded up by 21 connections of connecting elementss such as vertical member 22 or dip member 23 is provided with the structure of anchor head 34,44; Therefore; Carry out dual anchoring function on top through the top anchor head 34 and the part 24 that winds up, carry out dual anchoring function in the bottom through bottom anchor head 44 and lower edge spare 26, thus; With compared with techniques in the past, shearing resistance and ductile performance are improved.Especially; Owing to having, technology in the past needs the shearing resistance reinforcing scope is dwindled the lining thickness that is equivalent to shearing resistance strenthening member and the limitation of member thickness causes reinforcement performance to reduce; But the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention; Because the shearing resistance reinforcing scope of vertical direction is reinforced to the entire scope except that concrete overlay thickness, therefore can the shearing resistance reinforcement performance be maximized.In addition, can further obtain the vertically binding effect of (directions X), and self crooking ability that is caused by truss is remarkable through truss.In addition, through being symmetrically formed upside that is provided with top anchor head 34 and the downside that is provided with bottom anchor head 44, also has highly stable strengthening characteristic for the stress counter-rotating of reinforcing the position by the caused shearing resistance of seismic (seismal.
In addition, owing to do not produce interference phenomenon fully with the reinforcing bar of arrangement of reinforcement in concrete, so application property further is improved.In addition, owing to set the arrangement of reinforcement position of reinforcing bar and the function of partition 32,42 at interval forms through truss 20 naturally, therefore, the height adjustment that can pass through truss 20 in accurate position, can shorten construction period when effectively improving construction quality with the reinforcing bar arrangement of reinforcement.
Description of drawings
Fig. 1 is the drawing that the shearing resistance strenthening member of using for the shear behavior of reinforcing steel bar concrete structure, especially plate and post joint portion is described.
The drawing of the problem points that is occurred when Fig. 2 is being provided with of explanation shearing resistance strenthening member as shown in Figure 1 and during the stress counter-rotating.
Fig. 3 is the drawing of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of technical thought of the present invention.
Fig. 4 is the drawing that the truss of explanation in the shearing resistance strenthening member of Fig. 3 is suitable for form.
Fig. 5 is the drawing of explanation according to the effect of restraint of the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention.
Fig. 6 is the oblique view of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of desirable embodiment of the present invention.
Fig. 7 is the oblique view of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of another desirable embodiment of the present invention.
Fig. 8 is the oblique view of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of another desirable embodiment of the present invention.
Fig. 9 is the oblique view of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of another desirable embodiment of the present invention.
Figure 10 is the drawing of explanation according to the various examples of anchor head in the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of desirable embodiment of the present invention.
Figure 11 is explanation generally is applied to the example of reinforced concrete structures according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of a desirable embodiment of the present invention drawing.
Figure 12 is explanation is applied to the example of plate and post binding site according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of a desirable embodiment of the present invention drawing.
Figure 13 to Figure 15 is the drawing that explanation is used for organizing in advance according to the reinforcing bar of the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of desirable embodiment of the present invention example.
The specific embodiment
Fig. 3 is the drawing of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of technical thought of the present invention, and Fig. 4 is the drawing that the truss of explanation in the shearing resistance strenthening member of Fig. 3 is suitable for form.
With reference to Fig. 3, the shearing resistance strenthening member 10 according to technical thought of the present invention is characterized in that, has dual anchoring function at upper and lower sides, is located at reinforced concrete structures, strengthens the resistance for shear failure.Promptly; According to shearing resistance strenthening member 10 of the present invention; It is characterized in that through the upper and lower sides at the truss 20 with wind up part 24 and lower edge spare 26 of being connected by connecting elements 21 top anchor head 34 and bottom anchor head 44 are set, each anchor head 34,44 becomes the first anchoring means; The part 24 that winds up becomes the second anchoring means with lower edge spare 26, brings into play dual anchoring function at upper and lower sides.
Aforesaid according to shearing resistance strenthening member 10 of the present invention in, truss 20 has part of winding up 24 and lower edge spare 26, and has the connecting elements 21 that connects said wind up part 24 and lower edge spare 26.This kind truss 20 has in the concrete structure that together is provided with plate and post joint portion the reinforcing bar insulating element function that top or bottom master's muscle and secondary muscle is bundled in wind up part 24 or lower edge spare 26 with binding; Also have and organize in the construction in advance at reinforcing bar, but the function of carrying reinforcing bar member of support load when organizing thing in advance.Cause is reason as stated; According to shearing resistance strenthening member 10 of the present invention; As the reinforcing bar of having pointed out post is organized Figure 13 of example in advance and pointed out the reinforcing bar of beam to organize the shown in Figure 14 of example in advance, realize reinforcing bar preparatory group, and through making the effect that can expect reduction of erection time and construction period in advance.
At this moment, like Fig. 3 and shown in Figure 4, in truss 20, connecting elements 21 can alternatively be used vertical member 22 and constitutes with dip member 23.When using vertical member 22, node 31 that combines with the part 24 that winds up and the node that combines with lower edge spare 26 41 vertical formation.And when using dip member 23, node 31 that combines with the part 24 that winds up and the node 41 that combines with lower edge spare 26 are staggered to form.Aforesaid connecting elements 21 is shown in desirable embodiment of the present invention; Be desirably and use vertical member 22 and dip member 23 simultaneously; But can use at least any according to designer or needs person's needs, its structure can be used the correlation technique in this field and carry out various distortion uses under technical thought of the present invention.For example; Usually truss is that member is constituted with one or more triangular shaped arrangement; It is a skeleton bringing into play the works function fully; Can be divided into single truss, synthetic truss, compound truss according to its shape, truss 20 according to the present invention can use the truss of aforesaid various forms in technical thought range of the present invention.And; Shown in Fig. 4 (c); Only by the part 24 that winds up, lower edge spare 26, when vertical member 22 constitutes, be called dimension Ivan Lendl (Vierendeel) truss, the dimension Ivan Lendl truss that generally uses in Europe is actually by strong node and connects; Therefore not truss but rigid structures, but be regarded as in the present invention being contained in the truss scope.
In addition, in shearing resistance strenthening member 10 according to the present invention, top anchor head 34 is fixedly connected with the part 24 that winds up of truss 20 at truss 20 upsides, and bottom anchor head 44 is fixedly connected with the lower edge spare 26 of truss 20 at truss 20 downsides.Aforesaid top anchor head 34 and bottom anchor head 44; Shown in the desirable embodiment of the present invention of Fig. 6 and even Fig. 8; By partition 32,42 respectively from part 24 and the lower edge spare 26 that wind up isolate certain distances [be desirably like Fig. 3 and shown in Figure 10, concrete structure be represented as the distance that the concrete coating thickness L1 of defined, the position of L2 { are satisfied } in the position that makes top and the bottom anchor head 34,44 be positioned at top and the bottom master's muscle 4,5 in the plate 1}] and be provided with.Certainly, aforesaid top anchor head 34 is desirably with said partition 32,42 with bottom anchor head 44 and together forms as one with truss 20, but shown in desirable embodiment of the present invention, diversity and convenience for its making is provided can constitute various forms.
Aforesaid make top and the bottom anchor head 34,44 isolate top and the bottom partition 32,42 that certain distances are fixed on wind up part 24 and lower edge spare 26 have guarantee to accommodate top and bottom master's muscle 4,5 and secondary muscle 4 ', 5 ' the function in arrangement of reinforcement space; And have that the concrete coating thickness L1 of defined, the position of L2 { that is, are satisfied } in the position, exterior angle of automatically adjusting reinforced steel side by side and the function of the position, exterior angle of anchor head.Therefore, the length of the top and the bottom partition 32,42 of top and the bottom anchor head 34,44 combinations is adjusted according to the configuration desired depth of upper reinforcement and lower rebar.That is, top partition 32, for the main muscle 4 and the secondary muscle 4 that are easy to accommodate upper reinforcement '; Corresponding with two reinforcing bars 4,4 ' the size of diameter addition; The length of adjustment top partition 32, bottom partition 42, for the main muscle 5 and the secondary muscle 5 that are easy to accommodate lower rebar '; Corresponding with two reinforcing bars 5,5 ' the size of diameter addition, the length of adjustment bottom partition 42.Through the formation of aforesaid top and the bottom partition 32,42, the end of the end of upper and lower sides anchor head 34,44 and top and the bottom outermost angle steel muscle is arrangement of reinforcement side by side, therefore, is easy to guarantee the construction quality of homogeneous.
Aforesaid according to shearing resistance strenthening member 10 of the present invention in, top and the bottom anchor head 34,44 and top and the bottom partition 32,42 are desirably for its central axis with the symmetry status setting.Promptly; Because top and the bottom anchor head 34,44 and top and the bottom partition 32,42 are for its central axis { central axis of the node 31,41 (with reference to Fig. 3) that is connected with wind up part 24 and lower edge spare 26 with connecting elements 21 is consistent } top and the bottom anchor head 34,44 or top and the bottom partition 32,42 when eccentric; Flexural stress is excessive, might cause shearing resistance strenthening member 10 overall performances to weaken.And; Top and the bottom partition 32,42 is desirably the node 31,42 of wind up part 24 and the lower edge spare 26 that are combined in truss 20 (with reference to Fig. 3; Below identical); If top and the bottom partition 32,42 is not combined in the node 31,41 o'clock of the wind up part 24 and the lower edge spare 26 of truss 20, then appends flexural stress, thereby weaken the structural performance of truss.
Fig. 5 is the drawing of explanation according to the effect of restraint of the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention.At this moment, the dotted line on the drawing is roughly represented the track for the compressive stress of the concrete structure of shearing resistance strenthening member.
With reference to Fig. 5, aforesaidly can find out by Fig. 5 (a) according to the truss-like shearing resistance strenthening member 10 that has dual anchoring function up and down respectively of the present invention, the constraint of Y direction (direction of arrow) takes place.That is, in the truss-like shearing resistance strenthening member 10 that has dual anchoring function up and down respectively according to the present invention, therefore the concrete activity that truss 20 constraints take place to the Y direction produces appending property anti-shear concrete consolidation effect.Especially, this kind constraint bigger shearing resistance consolidation effect occurs when using dip member 23 as connecting elements 21 shown in Fig. 5 (C).
In addition,, can find out, the constraint of directions X (direction of arrow) takes place by Fig. 5 (b) according to the truss-like shearing resistance strenthening member 10 that has dual anchoring function up and down respectively of the present invention.Promptly; The truss-like shearing resistance strenthening member 10 that has dual anchoring function up and down respectively according to the present invention possesses the 1st and the 2nd anchoring means to directions X respectively in upper and lower side, and { the 1st anchoring means are top and the bottom anchor heads 34,44; The 2nd anchoring means are wind up part 24 and lower edge spare 26}; Therefore, the shearing resistance performance is improved.Especially, ductile performance is improved, and relaxes the fragility activity of shear failure especially, therefore, is improved for the safety of the shear failure of concrete structure.
Below, be elaborated according to drawing Fig. 6 and even Figure 15 of adding desirable embodiment of the present invention.In addition; At each drawing simple or omitted the shearing resistance strenthening member of relevant reinforced concrete structures technical formation and the construction technology of effect, the plate that uses this member and post etc., can be by the diagram and the detailed description of constituting of simply learning of the correlation technique in this field usually and its effect and effect, emphasis illustrates the part relevant with the present invention.
Fig. 6 is the oblique view of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of desirable embodiment of the present invention; Fig. 7 is the oblique view of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of another desirable embodiment of the present invention; Fig. 8 is the oblique view of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of another desirable embodiment of the present invention; Fig. 9 is the oblique view of explanation according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of another desirable embodiment of the present invention, and Figure 10 is the drawing of explanation according to the various examples of anchor head in the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of desirable embodiment of the present invention.
With reference to Fig. 6 and even Fig. 9; The truss-like shearing resistance strenthening member 10 that has dual anchoring function up and down respectively according to desirable embodiment of the present invention; According to technical thought of the present invention, through upper and lower sides top anchor head 34 and bottom anchor head 44 are set at truss 20 with wind up part 24 and lower edge spare 26 of connecting with connecting elements 21, each anchor head 34,44 becomes the 1st anchoring means; The part 24 that winds up becomes the 2nd anchoring means with lower edge spare 26, brings into play dual anchoring function at upper and lower sides.At this moment, truss 20 and top and the bottom anchor head 34,44, and the partition 32,42 that top and the bottom anchor head 34,44 is fixedly connected on truss 20 is like Fig. 6 and even shown in Figure 9, can various morphosises.
With reference to Fig. 6, vertical member 22 and the connecting elements 21 of dip member 23 as truss 20 are used in the shearing resistance strenthening member 10 shown in the present embodiment, and these are connected by bolt (certainly, can use the syndeton of various forms such as welding, riveted joint).At this moment, top and the bottom anchor head 34,44 is fixedly connected on the top and the bottom partition 32,42 of truss 20 and the vertical member 22 in the connecting elements 21 forms as one.That is, use a sheet material to possess the function of the vertical member 22 and the top and the bottom partition 32,42 of truss 20.Aforesaid partition 32,42 forms top partition 32 through making vertical member 22 to the last side-prominent extension certain distance of the part 24 that winds up, and forms bottom partition 42 through the following side-prominent extension certain distance to lower edge spare 26.Therefore, combine { the present embodiment prompting is through the form of solder bond } partition 32, isolate certain distances and be provided with, be combined in bottom partition 42, isolate certain distances and be provided with from lower edge spare 26 through bottom anchor head 44 from the part 24 that winds up on top through top anchor head 34.
In addition, the shearing resistance strenthening member 10 of aforesaid other embodiment according to present embodiment and following narration forms hole 22a at an arbitrary position and increases and concrete adhesion.In the present embodiment, the hole that is formed on vertical member 22, dip member 21 and last lower edge spare 24,26 also is used in the hole that is used to assemble, and the function of hole 22a is as stated carried out with the hole that is formed on top and the bottom anchor head 34,44 in the hole beyond being used to assemble.Certainly, aforesaid for the formation that increases with concrete adhesion can also be employed in the projection form that various use is carried out in this field except that pore morphology, selectivity is used as required.
And the undeclared drawing symbol 70 of Fig. 9 is partitions, shown in Figure 11 (a), when when shearing resistance strenthening member 10 is set shearing resistance strenthening member 10 being put into mould, has the function that makes the automatic corresponding mould of concrete overlay thickness.Therefore, the top 71 of partition 70 has the identical height with concrete overlay thickness L2 (with reference to Fig. 2).
With reference to Fig. 7; Vertical member 22 and the connecting elements 21 of dip member 23 as truss 20 are used in the shearing resistance strenthening member 10 that present embodiment is pointed out; These are fixed on wind up part 24 and lower edge spare 26 through welding (certainly, can use the syndeton of various forms such as bolt, riveted joint).And, pointed out the part 24 that winds up, lower edge spare 26 and vertical member 22 to use the form of managing at present embodiment, but the present invention is not limited thereto.Described example before the shearing resistance strenthening member 10 of aforesaid embodiment is different from; Top anchor head 34 is isolated certain distance through top partition 32 by the part 24 that winds up and is provided with, and bottom anchor head 44 is isolated certain distance through bottom partition 42 by lower edge spare 26 and is provided with.Therefore, partition 32 downsides in top are fixed on the part 24 that winds up, and upside is fixed on top anchor head 34.And partition 42 upsides in bottom are fixed on lower edge spare 26, and downside is fixed on bottom anchor head 44.Certainly; Aforesaid top anchor head 34 can constitute various forms with the formation of top partition 32 and bottom anchor head 44 and bottom partition 42; In the formation of present embodiment, top anchor head 34 forms as one with top partition 32, and bottom anchor head 44 forms as one with bottom partition 42.
With reference to Fig. 8, the shearing resistance strenthening member 10 that present embodiment is pointed out has only uses vertical member 22 to insert the structure that is combined in the hole 22b that is formed at vertical member 22 as the connecting elements 21 of truss 20 and the part 24 that winds up of truss 20 with lower edge spare 26.At this, the part 24 that winds up waits through welding with lower edge spare 26 can be fixed on vertical member 22.And in the present embodiment, top anchor head 34, top partition 32, vertical member 22, bottom partition 42 and bottom anchor head 44 form as one.
With reference to Fig. 9, the shearing resistance strenthening member 10 that present embodiment is pointed out is to be basic structure with shearing resistance strenthening member shown in Figure 7, and conduct is used for the example of dip member 23 of the connecting elements 21 of truss 20 with thread 23b to use wirerope 23a.That is, pointed out the formation of aforesaid dip member 23 to connect other morphosises in addition by welding or screw.
Like Fig. 6 and even various technical formation shown in Figure 9, shearing resistance strenthening member 10 according to the present invention can various morphosises in technical thought range of the present invention.
In addition, shown in figure 10 according to the shearing resistance strenthening member 10 of desirable embodiment of the present invention, can various use top and the bottom anchor head 34,44 and the section configuration of top and the bottom partition 32,42.For example; Figure 10 (a) has pointed out and has made top and the bottom anchor head 34,44 and top and the bottom partition 32,42 have the dull and stereotyped example in four directions of equal length to same direction; Figure 10 (b) has pointed out and has used top and the bottom partition 32,42 to have the form of the cubic bar of the basal area relatively littler than dull and stereotyped top and the bottom, four directions anchor head 34,44, and Figure 10 (c) has pointed out and used top and the bottom anchor heads 34,44 and top and the bottom partition 32,42 to have the form that circular cross section and top and the bottom partition 32,42 have the bar of the basal area relatively littler than top and the bottom anchor head 34,44.
At this moment; The horizontal direction basal area that is desirably top anchor head 34 has 7-14 times of size of the horizontal direction basal area of top partition 32, and same, the horizontal direction basal area of bottom anchor head 44 has 7-14 times of size of the horizontal direction basal area of bottom partition 42; Thus, guarantee sufficient anchoring effect.Restriction for the basal area of aforesaid top anchor head 34; Be suitable for Abdel-Salalm Mokhtar in the present invention, the nail that Amin Ghali and Walter Dilger etc. propose and the optimal basal area proportionate relationship of bar in ACI circular (TECHNICALPAPER) Title no.82-60 " Stud Shear Reinforcement for Flat Concreate Plates ".
Figure 11 explains the drawing that generally is applied to the example of reinforced concrete structures according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of desirable embodiment of the present invention, and Figure 12 is explanation is applied to the example of plate and post binding site according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of a desirable embodiment of the present invention drawing.
With reference to Figure 11 and Figure 12; Aforesaid shearing resistance strenthening member 10 according to desirable embodiment of the present invention is located at the position that plate and the post of reinforced concrete structures combine or is located at nothing such as beam, post, wall, foundation with alternative and reinforces or pedal shape support footing, thereby enhancing is for the resistance of shear failure.
With reference to Figure 11; Be used in the method for concrete structure (plate) according to the shearing resistance strenthening member 10 of desirable embodiment of the present invention, the construction mould for the construction of plate at first is in Figure 11; Because the known detailed item that is used for the board mold operation of common operator; Therefore, omit, only diagram finally is provided with the state of lower mould sheet material.
Then, be provided with bottom master's muscle 5 and secondary muscle 5 ', at this moment, in order to ensure concrete overlay thickness L2, with reference to Fig. 3, below identical; More than general lining thickness L2 should guarantee about 2cm when using plate }, usually with partition 70 ' fill up at certain intervals in the reinforcing bar bottom.Certainly, according to shearing resistance strenthening member 10 of the present invention as stated, special-purpose partition 70 instant setting concrete overlay thickness are set, thus easy to operate.
And, like Figure 11 (a) and (b), shearing resistance strenthening member 10 according to the present invention is located on the lower rebar.At this moment, according to the shearing resistance strenthening member 10 of desirable embodiment of the present invention, because lower edge spare 26 might be placed on the reinforcing bar, therefore, the interference with reinforcing bar does not take place, and can easily observe concrete overlay thickness regulation and construction.
Then; Be provided with top master's muscle 4 and secondary muscle 4 ', at this moment, upper reinforcement is if be placed on the part 24 that winds up of the shearing resistance strenthening member 10 of being located at last step; Then nature is consistent with the arrangement of reinforcement height of upper reinforcement; Therefore, the operator need not to carry out other operations for the concrete overlay thickness { L1 is with reference to Fig. 3 } of guaranteeing the upside reinforcing bar.
The job practices of using aforesaid shearing resistance strenthening member 10 according to the present invention to form is compared with the basis shearing resistance strenthening member of technology in the past, and application property is very outstanding and arrangement of reinforcement is accurate, and therefore, construction quality is improved.Promptly; Shearing resistance strenthening member 10 according to the present invention has realized the lower rebar (main muscle, secondary muscle: comprise the partition pad) of on mould, constructing earlier; And need earlier shearing resistance strenthening member to be configured in configuration lower rebar (main muscle and secondary muscle) in back on the mould according to the shearing resistance strenthening member { WELDING STUDS that Fig. 1 (b) is pointed out } of technology in the past; At this moment, while need being careful, existence prevents that shearing resistance strenthening member from falling down or the inconvenience of carrying out arrangement of reinforcement out of position.In addition; Aforesaid basis is the shearing resistance strenthening member of technology in the past; The arrangement of reinforcement position beguine of lower rebar according to shearing resistance strenthening member 10 arrangements of reinforcement of the present invention at upside { (b) drawing reference number 5 of Fig. 2 promptly, is equivalent to the downside thickness of shearing resistance strenthening member } more; Therefore, the shortcoming of the bending property that has a works that will dry in the shade from now on a little less than when using according to shearing resistance strenthening member 10 of the present invention.In addition; In the mode of using according to the shearing resistance strenthening member of technology in the past, because of confirming the arrangement of reinforcement height of upper reinforcement (main muscle, secondary muscle), therefore; Need be provided for the partition of arrangement of reinforcement upper reinforcement in addition; But because shearing resistance strenthening member 10 according to the present invention self comprised function as stated simultaneously, therefore, easy construction rapidly and guarantee arrangement of reinforcement quality accurately.
With reference to Figure 12, the configuration of the shearing resistance strenthening member at the position that combines for plate and post does not connect post, therefore, the interference with the post reinforcing bar does not take place.In addition, as stated, with the reinforcing bar of plate interference phenomenon does not take place yet, and shearing resistance strenthening member 10 according to the present invention also has the partition effect concurrently for the slab muscle, therefore, it is more convenient to construct.
Aforesaid shearing resistance strenthening member 10 according to desirable embodiment of the present invention; The top and the bottom reinforcing bar of institute's arrangement of reinforcement is configured in the exterior angle of having guaranteed lining thickness; Simultaneously, but shearing resistance reinforce, the exterior angle configuration through reinforcing bar guarantees the crooked endurance of reinforced concrete structures to greatest extent.And; During lateral loads such as generation earthquake, the stress reversal development that is drawn portion and compression unit to put upside down, but keep same shearing resistance reinforcement performance through the up-down symmetry of assembly according to the shearing resistance strenthening member 10 of desirable embodiment of the present invention always; Therefore, the shearing resistance reinforcement performance is highly stable.
Figure 13 to Figure 15 is the drawing that explanation is used for organizing in advance according to the reinforcing bar of the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of desirable embodiment of the present invention example.At this moment; The example that Figure 13 has pointed out the reinforcing bar of the post that combines a plurality of shearing resistance strenthening members 10 and form to organize in advance; The example that Figure 14 has pointed out the reinforcing bar of the beam that together combines with mould to organize in advance, and Figure 15 has pointed out the example of the preparatory group of reinforcing bar of using wirerope and thread simultaneously.
With reference to Figure 13 and even Figure 15; Shearing resistance strenthening member 10 according to desirable embodiment of the present invention; Because the characteristic of truss, the crooked toughness of strenthening member self is very big, is that the state that reinforcing bar merges has remarkable more crooked toughness; Therefore, combine a plurality of shearing resistance strenthening members to realize that reinforcing bar organizes in advance with the form of post or beam.Therefore, use shearing resistance strenthening member 10 according to the present invention replace being used for traditional type reinforcing bar in the past in advance group pedal the shape support, with main reinforcement group in advance together, can be used as new reinforcing steel bar and organize construction method in advance and apply flexibly.
As stated; Illustrate the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively according to said explanation and drawing according to desirable embodiment of the present invention; But these only are to illustrate; The common operators in this field are all known, in the scope that does not break away from technical thought of the present invention, can carry out various variations and change.
The present invention with a kind of truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively as an example of the present invention; This member is to be located at reinforced concrete structures, to be used to strengthen the shearing resistance strenthening member for the reinforced concrete structures of the resistance of shear failure; It is characterized in that, comprising:
And; It is characterized in that; Said connecting elements 21; The vertical member 22 that makes node 31 that combines with the said part 24 that winds up and the node 41 vertical formation that combine with said lower edge spare 26 and make the node 31 that combines with the said part 24 that winds up and the dip member 23 that is staggered to form the node 41 that combines with said lower edge spare 26 in, form by any at least.
In addition, it is characterized in that the connecting elements 21 of said truss 20 has at a certain distance the top partition 32 to the last side-prominent extension of the said part 24 that winds up, and have at a certain distance bottom partition 42 to the following side-prominent extension of said lower edge spare 26.
Said top anchor head 34 is isolated setting by the said part 24 that winds up at a certain distance through being combined in said top partition 32.
Said bottom anchor head 44 is isolated setting by said lower edge spare 26 at a certain distance through being combined in said bottom partition 42.
In addition, it is characterized in that said top anchor head 34 is fixed in the top partition 32 that the said part 24 that winds up, upside are fixed in said top anchor head 34 through downside, isolate being provided with at a certain distance by the said part 24 that winds up.
Said bottom anchor head 44 is fixed in the bottom partition 42 that said lower edge spare 26, downside are fixed in said bottom anchor head 44 through upside, is isolated being provided with at a certain distance by said lower edge spare 26.
In addition, it is characterized in that said top anchor head 34 is fixed in the top partition 32 that the said part 24 that winds up, upside are fixed in said top anchor head 34 through downside, isolate being provided with at a certain distance by the said part 24 that winds up.
Said bottom anchor head 44 is fixed in the bottom partition 42 that said lower edge spare 26, downside are fixed in said bottom anchor head 44 through upside, is isolated being provided with at a certain distance by said lower edge spare 26.
In addition, it is characterized in that said top partition 32 is fixed in the node 31 of said wind up part 24 and connecting elements 21 combinations.
Said bottom partition 42 is fixed in the node 41 of said lower edge spare 26 and connecting elements 21 combinations.
In addition, it is characterized in that the long-pending long-pending 7-14 size doubly of plane cross section that forms of the plane cross section of said top anchor head 34 with said top partition 32.
The long-pending long-pending 7-14 size doubly of plane cross section that forms of the plane cross section of said bottom anchor head 44 with said bottom partition 42.
Aforesaid according to the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively of the present invention; Be located at foundation cement board, plate, wall body and the plate of reinforced concrete structures and the position that post combines; In order to strengthen resistance for shear failure, can be separately or comprehensively be suitable for the suitable example of proposed various forms in the desirable embodiment of the present invention.
Claims (6)
1. truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively; It is located at and is used for the resistance of reinforcing steel bar concrete structure for shear failure in the reinforced concrete structures, and the said truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively comprises:
Truss (20) has part of winding up (24) and lower edge spare (26), and has the connecting elements (21) that connects said part that winds up (24) and lower edge spare (26);
Top anchor head (34), it is positioned at the upside of said truss (20) and is fixedly connected with the part that winds up (24) of said truss (20); And
Bottom anchor head (44), it is positioned at the downside of said truss (20) and is fixedly connected with the lower edge spare (26) of said truss (20).
2. the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively according to claim 1 is characterized in that:
Said connecting elements (21) is formed by in vertical member (22) and the dip member (23) at least one; Wherein, said vertical member (22) makes its node (31) that combines with the said part that winds up (24) form vertical with the node (41) that combines with said lower edge spare (26); Said dip member (23) makes node (31) that it combines with the said part that winds up (24) and the node (41) that combines with said lower edge spare (26) form staggered.
3. the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively according to claim 2 is characterized in that:
The connecting elements (21) of said truss (20) has at a certain distance the top partition (32) to the last side-prominent extension of the said part that winds up (24), and has at a certain distance the bottom partition (42) to the following side-prominent extension of said lower edge spare (26),
Said top anchor head (34) is provided with the said part that winds up (24) through being combined in said top partition (32) at a certain distance at interval,
Said bottom anchor head (44) is provided with said lower edge spare (26) through being combined in said bottom partition (42) at a certain distance at interval.
4. the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively according to claim 2 is characterized in that:
Said top anchor head (34) is fixed in the top partition (32) that the said part that winds up (24), upside are fixed in said top anchor head (34) through downside, is provided with at interval at a certain distance with the said part that winds up (24); Said bottom anchor head (44) is fixed in the bottom partition (42) that said lower edge spare (26), downside are fixed in said bottom anchor head (44) through upside, is provided with at interval at a certain distance with said lower edge spare (26).
5. the truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively according to claim 4 is characterized in that:
Said top partition (32) is fixed in the node (31) that the said part that winds up (24) combines with connecting elements (21),
Said bottom partition (42) is fixed in the node (41) that said lower edge spare (26) combines with connecting elements (21).
6. according to each described truss-like shearing resistance strenthening member that has dual anchoring function up and down respectively in the claim 3 to 5, it is characterized in that:
The long-pending long-pending 7-14 size doubly of plane cross section that forms said top partition (32) of the plane cross section of said top anchor head (34);
The long-pending long-pending 7-14 size doubly of plane cross section that forms said bottom partition (42) of the plane cross section of said bottom anchor head (44).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2009-0029106 | 2009-04-03 | ||
| KR1020090029106A KR100971736B1 (en) | 2009-04-03 | 2009-04-03 | Shear reinforcement with dual anchorage function each up and down |
| PCT/KR2010/001944 WO2010114288A2 (en) | 2009-04-03 | 2010-03-30 | Truss-type shear reinforcement material having double anchorage functions at both top and bottom thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102388191A true CN102388191A (en) | 2012-03-21 |
Family
ID=42645896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800156700A Pending CN102388191A (en) | 2009-04-03 | 2010-03-30 | Truss-type shear reinforcement material having double anchorage functions at both top and bottom thereof |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20120023858A1 (en) |
| JP (1) | JP2012522913A (en) |
| KR (1) | KR100971736B1 (en) |
| CN (1) | CN102388191A (en) |
| AU (1) | AU2010232082A1 (en) |
| DE (1) | DE112010000467T8 (en) |
| GB (1) | GB2481162A (en) |
| WO (1) | WO2010114288A2 (en) |
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- 2010-03-30 DE DE112010000467T patent/DE112010000467T8/en not_active Ceased
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- 2010-03-30 JP JP2012503323A patent/JP2012522913A/en active Pending
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| CN106284839A (en) * | 2016-08-04 | 2017-01-04 | 上海理工大学 | A kind of Crossing brace parallel truss flooring |
| CN106284839B (en) * | 2016-08-04 | 2019-01-01 | 上海理工大学 | A kind of parallel truss flooring of Crossing brace |
| CN109137955A (en) * | 2018-09-29 | 2019-01-04 | 上海建工建集团有限公司 | A kind of shear reinforcement and its construction method of sole plate |
| CN109137955B (en) * | 2018-09-29 | 2023-10-13 | 上海建工一建集团有限公司 | Shear steel bar of foundation slab and construction method thereof |
| CN109339324A (en) * | 2018-11-29 | 2019-02-15 | 杭州铁木辛柯建筑结构设计事务所有限公司 | Assembling type flat steel bar truss floor support plate |
| CN113152792A (en) * | 2021-02-04 | 2021-07-23 | 西安建筑科技大学 | Anti-cutting steel truss |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112010000467T8 (en) | 2012-12-13 |
| WO2010114288A2 (en) | 2010-10-07 |
| US20120023858A1 (en) | 2012-02-02 |
| GB2481162A (en) | 2011-12-14 |
| DE112010000467T5 (en) | 2012-05-24 |
| GB201116513D0 (en) | 2011-11-09 |
| WO2010114288A3 (en) | 2011-01-06 |
| KR100971736B1 (en) | 2010-07-21 |
| AU2010232082A1 (en) | 2011-11-10 |
| JP2012522913A (en) | 2012-09-27 |
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