CN100504085C - Anchor bolt and mounting method thereof - Google Patents
Anchor bolt and mounting method thereof Download PDFInfo
- Publication number
- CN100504085C CN100504085C CNB031009239A CN03100923A CN100504085C CN 100504085 C CN100504085 C CN 100504085C CN B031009239 A CNB031009239 A CN B031009239A CN 03100923 A CN03100923 A CN 03100923A CN 100504085 C CN100504085 C CN 100504085C
- Authority
- CN
- China
- Prior art keywords
- crab
- bolt
- reinforcing bar
- anchor hole
- embedded part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
The present invention relates to a stay bolt and its mounting method. When the steel bar is impacted with the stay bolt hole in the concret structure, the stay bolt also can be mounted, and the pull strength of the stay bolt also can be ensured. The invented stay bolt includes first stay bolt, the length of its embedded portion is shorter than range covered by steel bar and second stay bolt, it has a shaft on the position deviated from first stay bolt shaft, and the first stay bolt and second stay bolt are fixed into one body by adopting connecting element. The mounting method of said stay bolt includes that when the position of stay bolt in the concrete structure is impacted with steel bar, second stay bolt hole can be drilled on other position, so that stay bolt can be mounted.
Description
Technical field
The present invention relates at mattess, metope, the crab-bolt (anchor bolt) and the installation method thereof that adopt when ceiling face etc. is located to install.
Background technique
Crab-bolt is installed after concrete structure is finished can be divided into adhesive and piling means of fixation, they all have many types separately.Figure 20 to Figure 24 is the installation example that carries out adhesive.Install in the example at this, as shown in figure 20, at first on concrete structure 9, bore anchor hole 11.Then as shown in figure 21, with special-purpose hairbrush 25 cleaning anchor hole, as shown in figure 22, with tackiness agent handle envelope capsule (capsule) 15 embedding sealing.As shown in figure 23, adopt rotation mode that crab-bolt 18 is screwed into, stir tackiness agent when destroying envelope capsule 15.Then as shown in figure 24, curing adhesive is so that fixing concrete structure 9 and crab-bolt 18, the installation of the crab-bolt that so just is through with.The kind of with good grounds tackiness agent also can make the mode that the rotation crab-bolt is inserted into to beat the mode of inserting crab-bolt with iron hammer, thereby stirs tackiness agent when destroying tackiness agent envelope capsule, thus fixing crab-bolt.
Greatest problem when installing by above-mentioned installation method is, might produce the situation that the reinforcement location in design and installation position and the concrete structure collides, and causes sometimes crab-bolt being installed.Specifically, be provided with predetermined embedment length, just can guarantee the pull strength of crab-bolt in the concrete structure domestic demand.But steel bar arrangement is from the about 30-60mm in concrete structure top layer place generally speaking, therefore when anchor hole and reinforcing bar collision, just can not guarantee that crab-bolt has the embedment length of regulation (it can not be applied in the embedment length situation shorter than reinforcing bar coverage area of regulation, and this illustrates hereinafter).
Figure 25 has illustrated this situation.This figure represents the transverse section of concrete structure 9.The top layer of the label 26 explanation concrete structures 9 among the figure.Top layer 26 from reinforcing bar 12 to concrete structure apart from F corresponding to the reinforcing bar coverage area.In Figure 25, anchor hole D and reinforcing bar 12 do not bump, so crab-bolt 18 can guarantee to have the embedment length L of regulation.On the other hand, anchor hole E and reinforcing bar 12 collide, so crab-bolt 18 can not guarantee to have the embedment length of regulation.
In order to address the above problem, as shown in figure 26, at first on the mounting point of crab-bolt, from begin to tilt 30 ° the anchor hole of ground drill with ferrule of the direction perpendicular to structure top layer 26, then crab-bolt 18 piling are entered by structure top layer 26.As shown in figure 27, on the crab-bolt 18 that concrete structure is outwards given prominence to, apply active force, so that in direction bending crab-bolt 18 perpendicular to structure top layer 26.Adopt this method, avoid reinforcing bar 12 and just can install crab-bolt 18.
But carrying out above-mentioned crab-bolt when installing, carry out piling work because of crab-bolt under the state that tilts, so break away from the mounting point easily, crab-bolt easy deformation when carrying out buckling work is descended a lot of problems of degradation to some extent so can produce intensity.The requirement technology should be quite skilled when therefore installing according to above-mentioned crab-bolt installation method.
The diameter of crab-bolt can rely on people's strength that crab-bolt is carried out buckling work at M16 or when following, but has carried out just difficulty relatively of buckling work at M20 or when above.Therefore reach M20 or when above, adopt diamond tool that the reinforcing bar of anchor hole collision is cut at screw diameter,, crab-bolt is installed then so that get out the anchor hole of specific length.But owing to cut reinforcing bar, the intensity of therefore keeping away unavoidable concrete structure descends to some extent in this case.
Summary of the invention
The purpose of this invention is to provide a kind of crab-bolt, it also can installed without any the mounting point that changes it even when the anchor hole of installation crab-bolt collides reinforcing bar in the concrete structure.The present invention also provides its installation method.Another purpose provides crab-bolt and the installation method thereof of guaranteeing pull strength.
The feature of crab-bolt of the present invention is, it is included in outside outstanding stationary axle part of installing of concrete structure and the embedded part (embedded portion) that carries out embedding installation in concrete structure, spool the departing from mutually of the axle of stationary axle part and embedded part.This structure also can be used for stationary axle part and embedded part with coaxial, so that coaxial extension, the length of coaxial embedded part is shorter than reinforcing bar coverage area.
In addition, the embedded part of installing at the outstanding stationary axle part of installing of concrete external structure and concrete structure embedded set is crooked shape, and to form curved section, spool departing from simultaneously mutually of the axle that therefore makes the stationary axle part and embedded part be arranged in parallel.The bending angle of the axle of above-mentioned curved section relative fixed shaft portion or the axle of embedded part is the 45-60 degree.Can also reinforcement plate be installed at curved section.
Coaxial embedded part is inserted in the anchor hole of colliding with reinforcing bar, therefore can be arranged on retaining screw the mounting point of crab-bolt.Can under the situation of changing position not, carry out the installation exercise of crab-bolt like this.Also can be near anchor hole that reinforcing bar is collided second anchor hole of brill, in second anchor hole, insert an embedded part that departs from, therefore can guarantee the length of embedded part.This can guarantee the pull strength of crab-bolt.
Crab-bolt of the present invention has following feature, and it comprises first crab-bolt, and it has embedded part, and the length of its embedded part is shorter than reinforcing bar coverage area; Second crab-bolt, it has at locational that is departing from the first crab-bolt axle; Connecting element is used for first crab-bolt and second crab-bolt are fixedly become one.
Embedded part with first crab-bolt is inserted in the anchor hole that collides with reinforcing bar in this case, therefore retaining screw partly can be arranged on the mounting point of crab-bolt.Can under the situation that does not change any mounting point, carry out the crab-bolt installation exercise like this.In addition, also can around the anchor hole of collision reinforcing bar, bore second anchor hole, and the embedded part in second anchor hole inserts second crab-bolt, therefore can guarantee the length of embedded part.This just can guarantee the pull strength of crab-bolt.
The length of the embedded part of second crab-bolt can be more longer than the length of the embedded part of first crab-bolt.Therefore can improve the pull strength of crab-bolt.
The structure of second crab-bolt also can not possess the screw in the side-prominent installation of concrete structure, and only adopts the embedded part of installing at the concrete structure embedded set to form.Such structure can be removed to produce between the object that is connected the concrete structure top layer and second crab-bolt and interfere.
This structure also is suitable for screw first crab-bolt being screwed on the connecting element, so the length of the embedded part of can regulate first crab-bolt.Also can on the whole surface of the outer periphery of first crab-bolt, helical thread portion be set in addition.Can crab-bolt be installed in all parts of any concrete structure like this.
This structure also is suitable for the distance between the axle of the axle of first crab-bolt and second crab-bolt is decided to be about 30-150mm.In this case, can avoid second crab-bolt and reinforcing bar to collide, guarantee Len req, therefore guarantee the pull strength of crab-bolt.
The transverse section of connecting element also can be a rectangle.In addition, the transverse section of connecting element also can be semicircle, is tabular surface along concrete structural surface.Circle also can be adopted in the transverse section of connecting element.
First crab-bolt, second crab-bolt and connecting element also can form an integral body.In addition, also helical thread portion can be set on the whole surface of the outer periphery of above-mentioned crab-bolt, this can reduce the fabricating cost of crab-bolt.
In addition, around above-mentioned first crab-bolt, can repeat to be provided with a plurality of second crab-bolts, thereby can guarantee the pull strength of crab-bolt.
The embedded part of first crab-bolt and/or second crab-bolt can adopt pole shape or reinforcing bar shape.
The characteristics of the installation method of crab-bolt comprise the steps: when the mounting point of crab-bolt on the concrete structure and reinforcing bar bump against according to the present invention, boring anchor hole on every side with the position of reinforcing bar collision, depart from and be arranged on the axle that reinforcing bar bumps against locational installation axial region, and the embedded part that connects as one is embedded in the anchor hole, fixedly mount crab-bolt thus.Second anchor hole also can be in the boring of the direction beyond the reinforcing bar that above-mentioned first anchor hole bumps against.When and reinforcing bar position of bumping against and deviation position on when forming a groove between the anchor hole that forms, in the stationary axle part and depart between the embedded part connecting element is placed in the groove.
When the mounting point of crab-bolt on the concrete structure and reinforcing bar bump against, reinforcing bar on the collision reinforcement location is with first anchor hole of interior brill certain depth, on the peripheral position that does not bump against with reinforcing bar, bore second anchor hole that another degree of depth is equal to or greater than the reinforcing bar coverage area, first of connecting element connection, second crab-bolt fixedly is inserted in the anchor hole of embedded part of first and second crab-bolts, and crab-bolt is installed thus.
According to the present invention's crab-bolt installation method on the other hand, it is characterized in that comprising the steps: when anchor hole on the concrete structure and reinforcing bar collision, judge according to the reinforcing bar arrangement direction of collision and to distinguish the position of not bumping against, in the second dark anchor hole of a depth ratio reinforcing bar of ground drill with ferrule coverage area that does not bump against with reinforcing bar.Between first anchor hole and second anchor hole, form connectivity slot, on the first, the second anchor hole, carry out the embedding installation of first crab-bolt and second crab-bolt, simultaneously the connecting element that connects these crab-bolts is installed in the groove, and supports first crab-bolt with second crab-bolt.
According to one embodiment of the invention, a kind of being used to realizes that the crab-bolt of above-mentioned installation method comprises: in the outstanding stationary axle part of installing in the concrete structure outside; And embedded part, it is attached to this concrete structure by being embedded in concrete structure; Wherein, the axle of the axle of described stationary axle part and described embedded part departs from mutually.Described stationary axle part can have the coaxial embedded part that extends cavities formed co-axial, and the length of embedded part is shorter than reinforcing bar coverage area simultaneously.
According to another embodiment of the present invention, a kind of being used to realizes that the crab-bolt of above-mentioned installation method comprises: in the outstanding stationary axle part of installing in the concrete structure outside; And embedded part, it is attached to this concrete structure by being embedded in concrete structure; Wherein said stationary axle part and described embedded part are curved shape, and to form curved section, spool departing from simultaneously mutually of the axle that therefore makes described stationary axle part and embedded part is parallel to each other.
According to another embodiment of the present invention, a kind ofly be used to realize that the crab-bolt of above-mentioned installation method comprises: first crab-bolt, it has at least in the outstanding stationary axle part of installing in the concrete structure outside, second crab-bolt, it has an embedded part at least, and described embedded part is attached to this concrete structure by being embedded in the concrete structure, and connecting element, described first crab-bolt and second crab-bolt are coupled together, and the axle of described stationary axle part departs from mutually with the axle of described embedded part.Described first crab-bolt can also have an embedded part, and the length of the embedded part of described second crab-bolt is longer than the length of the embedded part of described first crab-bolt.
Fig. 1 has represented how to arrange the situation of reinforcing bar on mattess.On general mattess, the layout of reinforcing bar 12 is as grid in the concrete structure.The diameter of reinforcing bar approximately is 10-22mm, and the pitch between the reinforcing bar (pitch) approximately is 100-250mm.When under the situation of not grasping the accurate position of reinforcing bar, boring anchor hole, may produce the situation that anchor hole and reinforcing bar bump against sometimes.Each stain in Fig. 1 is represented the position that first anchor hole and reinforcing bar bump against.Fig. 1 illustrates first anchor hole and reinforcing bar bumps against layout, is divided into A, three kinds of B and C.The situation that A represents and reinforcing bar bumps against in North and South direction, the situation that B represents and reinforcing bar bumps against at east-west direction, C is that thing and North and South direction reinforcing bar intersect situation about bumping against.
By observing the bottom of first anchor hole, can grasp the direction that bumps against with reinforcing bar 12 at this.In other words, promptly at A, can distinguish in B or the C layout that may bump against with reinforcing bar.Do not boring first anchor hole in other directions that do not bump against with reinforcing bar, with first anchor hole at a certain distance X bore second anchor hole, this moment, second anchor hole can not bump against with reinforcing bar.The so-called direction that does not bump against with reinforcing bar is meant the east-west direction in the A layout, the North and South direction in the B layout, the east northeast in the C layout, northwest (NW), east southeast or southern west to.In addition, above-mentioned distance X can be an arbitrary value, as long as it is equal to or less than the pitch of reinforcing bar.
When boring second anchor hole with the position of such rule, can get out second anchor hole of desired depth, guarantee the pull strength of crab-bolt.
Description of drawings
Fig. 1 is the explanatory drawing of expression embodiment's crab-bolt installation method;
Fig. 1 is the planimetric map of embodiment's crab-bolt;
Fig. 3 is the cross-section profile of doing along arrow A among Fig. 2;
Fig. 4 is the cross-section profile of doing along arrow B among Fig. 2;
Fig. 5 is the cross-section profile along the C-C line among Fig. 2;
Fig. 6 is the side cross-sectional of first crab-bolt in embodiment's the distortion example of crab-bolt;
Fig. 7 be embodiment crab-bolt first the distortion example in, the side cross-sectional of the connecting element and second crab-bolt;
Fig. 8 is first explanatory drawing of embodiment's crab-bolt installation method;
Fig. 9 is second explanatory drawing of embodiment's crab-bolt installation method;
Figure 10 is the 3rd explanatory drawing of embodiment's crab-bolt installation method;
Figure 11 is the 4th explanatory drawing of embodiment's crab-bolt installation method;
Figure 12 is the side cross-sectional that makes use-case of crab-bolt when mattess is installed;
Figure 13 is the side cross-sectional that makes use-case of crab-bolt when concrete wall surface is installed;
Figure 14 is the cross-section profile of in second example crab-bolt being installed;
Figure 15 is the perspective exploded view of crab-bolt in second example;
Figure 16 is the perspective view of another modified example of crab-bolt in expression second example;
Figure 17 is the cross-section profile of crab-bolt side in the 3rd example;
Figure 18 is the cross-section profile of crab-bolt side in the 4th example;
Figure 19 is the cross-section profile of crab-bolt side in the 5th example;
Figure 20 is first explanatory drawing of the installation method of tackiness agent crab-bolt in the prior art;
Figure 21 is second explanatory drawing of the installation method of tackiness agent crab-bolt in the prior art;
Figure 22 is the 3rd explanatory drawing of the installation method of tackiness agent crab-bolt in the prior art;
Figure 23 is the 4th explanatory drawing of the installation method of tackiness agent crab-bolt in the prior art;
Figure 24 is the 5th explanatory drawing of the installation method of tackiness agent crab-bolt in the prior art;
Figure 25 is the in-problem explanatory drawing of crab-bolt installation method in the prior art;
Figure 26 is first explanatory drawing of the installation method of crab-bolt in the prior art;
Figure 27 is second explanatory drawing of the installation method of crab-bolt in the prior art.
Embodiment
According to most preferred embodiment of the present invention, crab-bolt and installation method thereof are elaborated in conjunction with the accompanying drawings.Will be appreciated that following record is an embodiment among the present invention, but the present invention has more than and is limited to this example.
Fig. 2 to Fig. 5 is the explanatory drawing of the crab-bolt of the explanation embodiment of the invention.Fig. 2 is a planimetric map, and Fig. 3 is the cross-section profile of doing along the arrow A among Fig. 2, and Fig. 4 is the figure that does along the arrow B among Fig. 2, and Fig. 5 is the cross-section profile along the C-C line among Fig. 2.Crab-bolt 1 in the present embodiment has following structure: first crab-bolt 2 of the embedded part shorter than reinforcing bar coverage area, has second crab-bolt 7 of an axle, and the connecting element 5 of overall fixed first crab-bolt 2 and second crab-bolt 7 in position from the axle deflection of first crab-bolt 2.
First crab-bolt 2 and second crab-bolt 7 are to adopt as SS400, stainless steel, and aluminium, cast iron, materials such as SCS form.
First crab-bolt 2 is to be made up of the embedded part 3 that carries out embedding installation in outstanding retaining screw 4 parts of installing and the concrete structure 9 outside concrete structure G.Retaining screw part 4 and embedded part 3 also can form one with coaxial layout as sealing material.The outer periphery of retaining screw part 4 forms external spiral, and embedded part 3 forms pole shape or reinforcing bar shape.When the outer periphery surface of embedded part 3 is that external spiral etc. is when forming concave-convex grain.Can improve the pull strength of first crab-bolt 2.The length of the embedded part 3 of first crab-bolt 2 is shorter than reinforcing bar coverage area.So-called reinforcing bar coverage area is meant the distance on 9 top layers from the reinforcing bar to the concrete structure.When on concrete structure 9, boring anchor hole,, the embedded part 3 of first crab-bolt 2 is inserted in the anchor hole, embodiment's crab-bolt 1 is installed owing to bump against and to guarantee prescribed depth with reinforcing bar.The retaining screw part 4 of first crab-bolt 2 can be set on the mounting point of crab-bolt according to this situation.
Simultaneously, form second crab-bolt 7 from the axle position that departs from first crab-bolt 2 with axle.7 of second crab-bolts have the embedding embedded part 8 that is installed in the concrete structure 9, and do not have in the concrete structure 9 outside retaining screw parts of installing of protruding.As shown in figure 13, this just can make the strut angle 17 and second crab-bolt 7 that are installed in concrete structure 9 top layers not produce interference mutually.The embedded part 8 of second crab-bolt 7 also forms pole shape or reinforcing bar shape.When the outer periphery surface of embedded part 8 forms concave-convex grain by spiral etc., can improve the pull strength of second crab-bolt 7.The arrangement of second crab-bolt 7 makes it depart from parallel with the axle of first crab-bolt 2.
But the bonding strength of the pull strength of crab-bolt and crab-bolt, concrete structure forms ratio.Mainly calculate out according to the bonding strength of the top layer area * unit area of stick portion crab-bolt.Long more its bonding strength of length that this means stick portion is strong more.In above-mentioned first crab-bolt 2, owing to embedded part 3 is bonded on the anchor hole than reinforcing bar coverage area is short, its stick portion top layer area diminishes, and guarantees that therefore the bonding strength of stipulating is very difficult.But the embedded part 8 of second crab-bolt 7 is formed with sufficient length, and its stick portion area strengthens, and therefore can guarantee the bonding strength of stipulating.Can guarantee the pull strength of crab-bolt 1 among the present invention in view of the above.The length of the embedded part 8 of second crab-bolt 7 is longer than reinforcing bar coverage area, has improved the pull strength of crab-bolt 1 among the present invention.
Simultaneously, adopt connecting element 5 connection first crab-bolts 2 and second crab-bolt 7 and the one that forms.Connecting element 5 employing metallic material etc. also form the rod shape.As shown in Figure 5, the transverse section of connecting element 5 is semicircle, and its planar surface is plane shape along concrete structure 9.Except semicircle, also can form shapes such as rectangle or circle.Fix first crab-bolt 2 and second crab-bolt 7 respectively at the two ends of connecting element 5 according to the longitudinal direction of connecting element 5 then.This causes the axle of first crab-bolt 2 and the setting that spool departs from of second crab-bolt 7.The axle of noting first crab-bolt 2 and the wheelbase of second crab-bolt 7 are from X, and it is definite according to following method.
Form in the part of connecting element 5 and to fix the internal spiral of first crab-bolt 2, combine with retaining screw part 4 on first crab-bolt 2.In the case can free adjustment the ratio of length between fixedly spiral part 4 in first crab-bolt 2 and the embedded part 3.Fixedly spiral part 4 since first crab-bolt 2 forms spiral to embedded part 3 all surfaces, combines with spiral in the connecting element 5.As shown in Figure 6, the outer periphery of first crab-bolt 2 all forms external spiral 4.Simultaneously as shown in Figure 7, form the internal spiral 6 that combines with the spiral of first crab-bolt 2 in the end of connecting element 5.First crab-bolt 2 shown in Figure 6 is screwed on the connecting element shown in Figure 75, thereby forms crab-bolt 1 of the present invention, but free adjustment fixing ratio of spiral part 4 and embedded part 3 in first crab-bolt 2.In advance second crab-bolt 7 (only forming embedded part) is fixedly connected on the connecting element 5, first crab-bolt 2 is screwed to connecting element 5, can be provided at the advantage that the scene is very easy to regulate thus.Certainly choose at random two kinds of structures.After earlier first crab-bolt 2 being integrated with connecting element 5, integrate the structure of second crab-bolt 7 again, perhaps also can form the first, the second crab-bolt 2,7 respectively with connecting element 5 earlier, and then form whole composite structure.
Installation method to crab-bolt among the present invention describes below.Fig. 8 to Figure 11 is the installation procedure of diagram crab-bolt.With Fig. 1 is example, and crab-bolt is to be installed on the mattess afterwards to describe.
At first bore first anchor hole 10 in the crab-bolt mounting point of regulation.Generally can contrast crab-bolt 18 (with reference to Figure 12) under the situation that first anchor hole 10 and reinforcing bar 12 do not bump against installs.When first anchor hole 10 bumps against with reinforcing bar 12 on the other hand, observe the bottom of first anchor hole 10, can grasp the direction of the reinforcing bar 12 of collision.Whether i.e. identification (A) bumps against with the reinforcing bar 12 that North and South direction is arranged, perhaps whether (B) bumps against with the reinforcing bar 12 that east-west direction is arranged, perhaps whether (C) press the reinforcing bar collision of thing and North and South direction intercross arrangement.(with reference to figure 1)
To bump against with reinforcing bar 12 in order preventing then, to determine the bore position of second anchor hole 11.At first, determine to bore second anchor hole 11 since that direction of first anchor hole 10.The direction of determining and will removing the above-mentioned reinforcing bar of finding when selecting this direction.Promptly in the A layout, should select east-west direction, should select North and South direction in the B layout, should select east northeast respectively in the C layout, northwest (NW), east southeast or southern west to.Then decision whether according to from first anchor hole 10 bore second anchor hole 11 within the given distance.Given X distance can be arbitrary distance, as long as equate with the pitch of the reinforcing bar 12 of layout or less just passable.During the about 100-250mm of the pitch between the reinforcing bar 12, the X distance is approximately 30-150mm.Determine the mounting point of second anchor hole 11 with this mode, the situation that second anchor hole 11 and reinforcing bar 12 bump against just can not take place.Therefore can bore second anchor hole 11 reaches prescribed depth, can guarantee the pull strength of crab-bolt.
As shown in Figure 8, use vibrations rig 13 to bore second anchor hole 11.It is more convenient that following graticule meeting is added on the top layer of concrete structure 9 at this moment.Promptly the mounting point P with first anchor hole 10 is a benchmark, adds straight line at the bore position to second anchor hole 11.And relative installation P interpolation radius is the circle of X.Can determine the bore position of second anchor hole 11 in this way according to straight line and both intersection points of circle.
As shown in Figure 9, between first anchor hole 10 and second anchor hole 11, form the groove 14 that to allocate connecting element 5 into.Concrete emery wheel and the vibrations rig 13 that is provided with the cutting diamond blade that adopt, cutting concrete structure 9 top layers form groove 14.Use cleaning first anchor hole 10, the residual concrete powder of second anchor hole 11 and groove 14 top layers such as hairbrush then.
As shown in figure 10, insert tackiness agent envelope capsule 15 in first anchor hole 10 and second anchor hole, 11 places.Crab-bolt 1 among the present invention presents asymmetric state, can destroy the envelope capsule and stir tackiness agent owing to screw crab-bolt 1 in each anchor hole 10,11.Therefore adopt hammer to beat crab-bolt 1, destroy the envelope capsule and stir the mode of tackiness agent, insert anchor hole 10,11 places respectively the envelope capsule (as trade name MU) 15 that suitable hammer beats the tackiness agent of mode is housed.This mode also is suitable for filling gun tackiness agent being injected in the anchor hole 10,11.
As shown in figure 11, the crab-bolt 1 of present embodiment is inserted into anchor hole 10,11 respectively.Specify as follows.The embedded part 3 of first crab-bolt 2 is inserted into first anchor hole 10, second crab-bolt 7 is inserted into second anchor hole 11, connecting element 5 is inserted into 14 li of grooves.When the length the when length of embedded part 3 bumps against with reinforcing bar 12 than first anchor hole 10 in first crab-bolt 2 was long, the front end of cutting embedded part 3 was so that adjust its length.First crab-bolt 2 can be according to the length of the depth adjustment embedded part 3 of first anchor hole when screw on the connecting element 5 combines.Slit between connecting element 5 and the groove 14 is crammed, the maintenance curing adhesive, the installation of crab-bolt 1 just is through with.
Figure 12 is the use-case that has finished the crab-bolt 1 of installing on mattess 19.Except the crab-bolt 18 of common installation, also has the crab-bolt 1 of present embodiment on the mattess 19.In example was installed, in order at mattess 19 H shaped steel 20b to be installed, supporting part 20a adopted crab-bolt to support.Therefore on supporting part 20a and H steel 20b all each self-forming with the corresponding through hole in the mounting point of crab-bolt 1,8.Insert crab- bolt 1,18 separately by through hole then, so just supporting part 20a and H steel 20b have been installed on the mattess 19.Nut is tightened onto on the crab- bolt 1,18, connects supporting part 20a and H steel 20b.In this way H steel 20b is fixed on the concrete ground 19.
Figure 13 is the use-case that has finished the crab-bolt 1 of installing on concrete wall surface.As shown in figure 13, strut angle 17 is arranged on the concrete wall surface 16 so that each crab- bolt 1,18 to be installed.There not being illustrated structure element to be installed on the supporting part 17, be fixed on the concrete wall surface 16 then with the method.
As detailed above, the crab-bolt in the present embodiment 1 has following composition.It comprises first crab-bolt 2, and the length of the embedded part that it has is shorter than reinforcing bar coverage area, second crab-bolt 7, and it has the axle center on the position of the axle that departs from above-mentioned first crab-bolt 2, connecting element 5, it fixedly becomes one first crab-bolt 2 and second crab-bolt 7.In this case, with the embedded part 3 of first crab-bolt 2 be inserted in reinforcing bar 12 corresponding anchor hole 10 in, retaining screw part 4 is arranged on the mounting point of crab-bolt.Can need not carry out mounting screw 1 under the situation of any change mounting point like this.Also can around the anchor hole 10 of collision reinforcing bar 12, bore second anchor hole 11 in addition, in second anchor hole 11, insert the embedded part 8 of second crab-bolt 7, therefore can guarantee the length of embedded part.Then can guarantee the pull strength of crab-bolt 1.
In addition, the following formation of the installation method of the crab-bolt of present embodiment.Bore first anchor hole in the mounting point of crab-bolt 1, when first anchor hole 10 is collided with reinforcing bar 12, bumping against directions ground drill with ferrule second anchor hole 11 in addition with reinforcing bar 12, thereby present embodiment crab-bolt 1 is installed.Can avoid producing the situation of second anchor hole 11 and reinforcing bar collision in view of the above.Prescribed depth when as a result, second anchor hole 11 can get into the pull strength of guaranteeing crab-bolt 1.
As mentioned above, said structure has been eliminated the habitual work that crab-bolt is tilted piling or repairs support platform, even thereby be not those skilled in the art also can be easy to install crab-bolt, and improved installation quality.
Figure 14 illustrates the installation example of the crab-bolt 1A in the second installation example.This crab-bolt 1A is that a crooked bolt axis forms, its formation is the stationary axle part 4A (the first crab-bolt 2A) that protrudes installation in the outside of concrete structure 9, with the embedded part 8A (the second crab-bolt 7A) that carries out embedding installation in the inboard of concrete structure 9, so the axle of stationary axle part 4A departs from X distance and parallel mutually with the axle of embedded part 8A.Corresponding to the bending angle of the curved section 5A of above-mentioned connecting element 5, with respect to the axle of the axle of stationary axle part 4A or embedded part 7A 45-60 degree preferably.In addition, also reinforcement plate 55 has been installed in this embodiment, to guarantee the intensity of each several part at curved section 5A place.As shown in figure 15, reinforcement plate 55 is right angle trigonometry body member with the crab-bolt separating making, and partly forms the groove of engage flex part 5A at its hypotenuse.Reinforcement plate 55 integral solder are on the curved section 5A on the crab-bolt 1A that crooked crab-bolt axle forms.Thereby improve the withstand load intensity of curved section 8A.
Among Figure 16, illustrated reinforcement plate 55 does not need independent making.The reinforcement plate 55A integral solder that approximately forms the right angle trigonometry body is at the stationary axle part 4A and the embedded part 8A that form screw shaft.This structure does not need to be bent to form screw shaft, thereby has simplified production process.
Propose in passing, the shape of crab-bolt of the present invention is not only limited to above-mentioned shape.As shown in figure 17, first crab-bolt, second crab-bolt and connecting element can form one, in addition also outside the whole surface of peripheral part form external spiral 21.Crab-bolt also can be in this manner, promptly crooked a kind of bar, and it has the external spiral 21 that forms on the whole surface of its outer periphery.As shown in figure 18, two crab-bolts 23 can wholely form, and the outside retaining screw part of protruding 22 of concrete structure fuses with each crab-bolt 23 of the X distance of being separated by from retaining screw part 22.This crab-bolt forms in this manner, promptly welds together having a plurality of bars that form external spiral in its outer periphery.
Above-mentioned is that the situation that first crab-bolt and second crab-bolt adopt the adhesive mode to fix is illustrated, but also can adopt the piling grappling.Figure 19 represents second crab-bolt is adopted the side cross-sectional of piling grappling.This second crab-bolt 24 is after being inserted into second anchor hole, and its fore-end forms wedge-like separately, promptly can be fixed on the concrete wall surface 16.In this case, the time crab-bolt can be installed in the mounting point without any change, and also can guarantee the pull strength of crab-bolt.
Claims (20)
1. the installation method of a rear-mounted crab-bolt, may further comprise the steps: when the mounting point of crab-bolt on the concrete structure and reinforcing bar bump against, bumping against the peripheral position brill anchor hole of position with reinforcing bar, to depart from and be arranged on axle and the one that described reinforcing bar bumps against locational stationary axle part and be connected to stationary axle embedded part partly, be embedded in the described anchor hole, fixedly mount crab-bolt thus
Wherein, described crab-bolt is done as a whole embedding when mounted.
2. the installation method of crab-bolt as claimed in claim 1, further comprising the steps of: between position that described reinforcing bar bumps against and described deviation position, form a groove, and in described groove at stationary axle partly and depart from and lay connecting element between the embedded part.
3. the installation method of a rear-mounted crab-bolt; May further comprise the steps: when the installation site of crab-bolt on xoncrete structure and reinforcing bar bump against; On the position of collision reinforcing bar; Bore first anchor hole with the degree of depth in the reinforcing bar coverage; At the peripheral position that does not bump against with reinforcing bar; Bore another degree of depth and be equal to or greater than second anchor hole of reinforcing bar coverage; Connection Element integrally formed first; Second crab-bolt fixedly is inserted into respectively in described first anchor hole and second anchor hole; Thereby installation crab-bolt
Wherein, described crab-bolt is done as a whole embedding when mounted.
4. the installation method of a rear-mounted crab-bolt, may further comprise the steps: when anchor hole of on concrete structure, boring and reinforcing bar collision, the position of not bumping against is distinguished in reinforcing bar arrangement direction judgement according to collision, in the second dark anchor hole of a depth ratio reinforcing bar of ground drill with ferrule coverage area that does not bump against with reinforcing bar, between first anchor hole and second anchor hole, form connectivity slot, on described first and second anchor hole, carry out the embedding installation of first crab-bolt and second crab-bolt, simultaneously the connecting element that connects these crab-bolts is installed in the described groove, support first crab-bolt with second crab-bolt
Wherein, described crab-bolt is done as a whole embedding when mounted.
5. one kind is used for realizing the rear-mounted crab-bolt of any one described installation method of aforesaid right requirement 1-4 to avoid colliding with reinforcing bar, comprising:
In the outstanding stationary axle part of installing in the concrete structure outside; With
Embedded part, it is embedded in the concrete structure, is used to be attached to this concrete structure;
Wherein said stationary axle part and described embedded part are curved shape, and to form curved section, spool departing from simultaneously mutually of the axle that therefore makes described stationary axle part and embedded part is parallel to each other, and
Wherein, described crab-bolt is done as a whole embedding when mounted.
6. crab-bolt as claimed in claim 5, the axle of the described relatively stationary axle part in wherein said curved portions angle is the 45-60 degree.
7. crab-bolt as claimed in claim 5 has wherein been installed reinforcement plate at described curved section.
8. one kind is used for realizing the rear-mounted crab-bolt of any one described installation method of aforesaid right requirement 1-4 to avoid colliding with reinforcing bar, comprising:
First crab-bolt, it has at least in the outstanding stationary axle part of installing in the concrete structure outside,
Second crab-bolt that forms by embedded part only, thus described embedded part be embedded in be attached in the concrete structure this concrete structure and
Connecting element, described first crab-bolt and second crab-bolt are coupled together, and the axle of described stationary axle part departs from mutually with the axle of described embedded part, and described second crab-bolt is attached to the concrete side of described connecting element, and opposite with the concrete side one side-prominent to connecting element not
Wherein, described crab-bolt is done as a whole embedding when mounted.
9. crab-bolt as claimed in claim 8, wherein said first crab-bolt also has an embedded part, and the length of the embedded part of described second crab-bolt is longer than the length of the embedded part of described first crab-bolt.
10. crab-bolt as claimed in claim 8 wherein is screwed in described first crab-bolt on the described connecting element with screw, with the length of the embedded part of regulating described first crab-bolt.
11. crab-bolt as claimed in claim 8, the whole outer periphery surface of wherein said first crab-bolt forms spiral part.
12. crab-bolt as claimed in claim 8, distance is about 30-150mm between the axle of wherein said first crab-bolt and the axle of described second crab-bolt.
13. crab-bolt as claimed in claim 8, the transverse section of wherein said connecting element is rectangular.
14. crab-bolt as claimed in claim 8, the transverse section semicircular in shape of wherein said connecting element, its planar surface is along the concrete structure top layer.
15. crab-bolt as claimed in claim 8, the transverse section of wherein said connecting element is rounded.
16. crab-bolt as claimed in claim 8, wherein said first crab-bolt, described second crab-bolt and described connecting element form single element.
17. crab-bolt as claimed in claim 16, the whole surface of the outer periphery of wherein said crab-bolt has formed spiral part.
18. crab-bolt as claimed in claim 8 wherein is provided with a plurality of described second crab-bolts in contiguous described first crab-bolt.
19. crab-bolt as claimed in claim 8, wherein said first crab-bolt and/or described second crab-bolt have embedded part, and it is rod shape or reinforcing bar shape.
20. crab-bolt as claimed in claim 8, wherein said first crab-bolt have the coaxial embedded part that forms from the coaxial extension of described stationary axle part, the length of coaxial embedded part is shorter than reinforcing bar coverage area simultaneously.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031009239A CN100504085C (en) | 2003-01-07 | 2003-01-07 | Anchor bolt and mounting method thereof |
| HK04106798.7A HK1064147A1 (en) | 2003-01-07 | 2004-09-08 | Anchor bolt and installing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031009239A CN100504085C (en) | 2003-01-07 | 2003-01-07 | Anchor bolt and mounting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1515803A CN1515803A (en) | 2004-07-28 |
| CN100504085C true CN100504085C (en) | 2009-06-24 |
Family
ID=34239001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031009239A Expired - Lifetime CN100504085C (en) | 2003-01-07 | 2003-01-07 | Anchor bolt and mounting method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100504085C (en) |
| HK (1) | HK1064147A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1767710B1 (en) * | 2004-06-30 | 2015-10-07 | Suehiro-System Co., Ltd. | Composite anchor bolt and construction method for the anchor bolt |
| CN103527591A (en) * | 2012-07-04 | 2014-01-22 | 青岛天力建筑加固工程有限公司 | Root division anchoring piece |
| CN110984396A (en) * | 2019-12-24 | 2020-04-10 | 福州鼓楼纹英建筑工程有限责任公司 | Rear-mounted anchor net and operation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2879660A (en) * | 1955-04-25 | 1959-03-31 | George P Reintjes | Adjustable lining support |
-
2003
- 2003-01-07 CN CNB031009239A patent/CN100504085C/en not_active Expired - Lifetime
-
2004
- 2004-09-08 HK HK04106798.7A patent/HK1064147A1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2879660A (en) * | 1955-04-25 | 1959-03-31 | George P Reintjes | Adjustable lining support |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1064147A1 (en) | 2005-01-21 |
| CN1515803A (en) | 2004-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20050204643A1 (en) | Anchor bolt and installing method thereof | |
| US6685154B1 (en) | Connector and method for assembling structural elements together without the use of weldments | |
| EP2985106B1 (en) | Method of mounting anchoring assemblies to a metal object for anchoring a liner of a cured lining material | |
| CN100504085C (en) | Anchor bolt and mounting method thereof | |
| CN112049241A (en) | Connecting structure for precast beam column and construction method thereof | |
| US6910826B1 (en) | Breakaway coupling | |
| KR101140408B1 (en) | Prop with reinforcing means | |
| US20060123726A1 (en) | Channel anchor | |
| AU8464498A (en) | Structural member having a metal shell reinforced by a reinforcing plate | |
| JP2017128860A (en) | Reinforcing construction method and reinforcement structure of concrete structure | |
| JP4590810B2 (en) | Pole with collapse prevention function | |
| JPH02217552A (en) | End connecting method of prefabrication element of reinforced concrete and reinforced concrete pillar member manufactured by its method | |
| JP5534593B2 (en) | Saddle, slope reinforcement method and slope reinforcement structure using this fence | |
| JP3323431B2 (en) | Support plate with ball seat | |
| JP7041425B2 (en) | Load transmission part structure from anchor to pressure receiving plate | |
| CN107859050B (en) | Wind driven generator foundation and construction method thereof | |
| JP2769967B2 (en) | Concrete blocks for framing | |
| CN212835361U (en) | Pile body angle bead cover and prefabricated building structure | |
| RU2204653C2 (en) | Pile | |
| CN218813850U (en) | Multi-foundation bolt pre-embedding structure | |
| JP7474392B2 (en) | Metal joint and method for manufacturing metal joint | |
| JP7285676B2 (en) | Rotating pile and construction method of rotating pile | |
| KR100484788B1 (en) | Device for reinforcing the head section of steel pile | |
| JPH01154952A (en) | Support structure of handrail strut | |
| JP2982158B2 (en) | Handrail support structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1064147 Country of ref document: HK |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1064147 Country of ref document: HK |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090624 |