CN102667000B - Joint structure for steel pipe pile, steel pipe pile foundation, and method of building steel pipe pile foundation - Google Patents
Joint structure for steel pipe pile, steel pipe pile foundation, and method of building steel pipe pile foundation Download PDFInfo
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- CN102667000B CN102667000B CN201080052956.6A CN201080052956A CN102667000B CN 102667000 B CN102667000 B CN 102667000B CN 201080052956 A CN201080052956 A CN 201080052956A CN 102667000 B CN102667000 B CN 102667000B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 186
- 239000010959 steel Substances 0.000 title claims abstract description 186
- 238000000034 method Methods 0.000 title description 7
- 238000010276 construction Methods 0.000 claims description 63
- 238000012856 packing Methods 0.000 description 55
- 239000000463 material Substances 0.000 description 29
- 238000012360 testing method Methods 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 12
- 239000004570 mortar (masonry) Substances 0.000 description 12
- 238000010008 shearing Methods 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010068051 Chimerism Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
A joint structure for a steel pipe pile, comprising: a steel pipe pile's first main pipe; a steel pipe pile's second main pipe which is adjacent to the steel pipe pile's first main pipe; a male joint which is provided with a pair of male legs mounted to the steel pipe pile's first main pipe and also with a pair of male arms extending from the male legs so as to separate from each other, and which has protrusions and depressions formed on the surface thereof; a female joint which is provided with a pair of female legs mounted to the steel pipe pile's second main pipe and also with a pair of female arms extending from the female legs so as approach each other, and which is engaged with the male joint; and a plate-like member which is provided to the steel pipe pile's second main pipe at a position between the pair of female legs, and which has protrusions and depressions formed on the surface thereof.
Description
Technical field
The present invention relates to the construction process of steel pipe sheet pile joint construction, steel pipe sheet pile foundation and steel pipe sheet pile foundation.
No. 2009-272215, the Patent of the application based on filing an application in Japan on November 30th, 2009 and advocate priority, quotes its content here.
Background technology
Generally speaking, use by (1) to adjacent steel pipe sheet pile main respectively fixing with circular joint steel pipe, (2) of slit make these joint steel pipes each other chimeric while by steel pipe sheet pile be embedded to continuously in ground, sand, (4) in (3) excavation joint steel pipe fill cleaning, (5) in joint steel pipe with the steel pipe sheet pile joint construction that mortar obtains in joint steel pipe.Such steel pipe sheet pile joint construction, due to by chimeric each other joint steel pipe (P: pipe), is managed so be called P()-P(pipe) joint (P-P joint).
In addition, except P-P joint, as steel pipe sheet pile joint construction, make in addition to have in the axial direction the joint steel pipe of slit and the T-shaped male contact being formed by T-steel P-T joint (with reference to patent documentation 1) chimeric and that steel pipe sheet pile is linked and make the negative joint being formed by the pair of L structural section arranging abreast spaced apart and the positive type joint being formed by 1 T-steel mutually chimeric and by the situation of the L-T joint of steel pipe sheet pile link etc. mutually inwardly.
In the chimeric connector portions structure of recording at patent documentation 1, make to be provided with from the teeth outwards the chimeric joint of positive type of multiple projections, with bossed T-steel, with on inner face, be provided with multiple projections the chimeric joint of cloudy type, be with bossed joint steel pipe chimeric, in the inside with bossed joint steel pipe, set mortar.
In above such existing steel pipe sheet pile joint construction, there is following such undesirable condition.
First,, the in the situation that of P-P joint, in joint 3 spaces of chimeric connector portions formation of chimeric state mutually, after joint is chimeric, need in each space of narrow connector portions, carry out each operation of sand excavation and cleaning, mortar filling etc.Therefore, be difficult to carry out the reliable cleaning of connector portions and closely knit mortar filling.Thereby it is unstable that quality becomes, can not fully guarantee the adhesive strength of mortar, there is the possibility that can not bring into play reliably the shear yield strength of connector portions.
In addition, in P-T joint and L-T joint, also same with the situation of P-P joint, due to narrower between joint chimeric empty, so be difficult to carry out the reliable cleaning of connector portions and the filling of closely knit mortar.Thereby, the shear yield strength that likely quality becomes unstable, can not bring into play reliably connector portions.And then, in P-T joint and L-T joint, when because earthquake or soil pressure, hydraulic pressure etc. are on steel pipe sheet pile when exposure level power, offset relative to one another to connector portions, joint by the shear transfer producing between steel pipe sheet pile, between mortar and joint, there is Relative Displacement, mortar is compressed, and by its reaction force, the famale connector being made up of joint steel pipe and L-type steel is to the Direction distortion of opening.In the case, the adhesive power of the joint steel pipe of connector portions and T-steel and mortar reduces, and the further undesirable condition of decline of shear yield strength of connector portions also occurs.
As the undesirable condition of eliminating above such existing steel pipe sheet pile joint construction, make the workability of filling about excavation, cleaning and the mortar of the sand of connector portions become good, and realize the steel pipe sheet pile joint construction of guaranteeing of the shear yield strength of connector portions, proposed to make so that the mutual mode inwardly of arm has configured the negative joint of pair of L structural section and so that the mutual mode outwardly of arm has configured the positive type joint chimeric L-L joint (with reference to patent documentation 2) mutually of pair of L structural section.
In the L-L joint of recording at patent documentation 2, on the main outer peripheral face being clipped by each L-type steel of negative joint and positive type joint, be fixed wtih many with predetermined distance and be with bossed bar-shaped steel.Thus, can bring into play reliably the adhesive strength of mortar, the shear yield strength of connector portions is improved.
Prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 8-27774 communique
Patent documentation 2: TOHKEMY 2005-282174 communique
Summary of the invention
Invent problem to be solved
But, in the steel pipe sheet pile joint construction of recording at patent documentation 2, to expect the many of main outer peripheral face structures that adhere to bossed bar-shaped steel and packing material, owing to producing larger adhesive power on by the both ends of the main side in the cross section being formed by packing material of main and the encirclement of L-type steel, so effect has tensile force on packing material, in the situation that having there is maximum shear stress easily the length direction at packing material, spread all over from the 1st main to the 2 main generation oblique shears be full of cracks.If known generation oblique shear be full of cracks,, the shearing force of connector portions sharply declines.This be because, when steel pipe sheet pile foundation be subject to the horizontal force that brings because of earthquake or bring because of soil pressure etc. horizontal force time, there is the Relative Displacement of vertical direction at steel pipe sheet pile in each other, although by connector portions performance shearing resistance, but in the time that the relative deformation of connector portions increases, shearing force sharply declines, so the energy that can absorb is less.
The object of the present invention is to provide and a kind ofly can guarantee good application property and stable quality, realize the reduction of construction cost and the shortening of construction period and steel pipe sheet pile joint construction and the steel pipe sheet pile foundation of the shear yield strength of the connector portions that can play stably.
For solving the scheme of problem
The present invention, in order to solve above-mentioned problem, adopts following structure.
(1) the 1st technical scheme of the present invention, is a kind of steel pipe sheet pile joint construction, possesses: the 1st steel pipe sheet pile main; The 2nd steel pipe sheet pile main is adjacent with above-mentioned the 1st steel pipe sheet pile main; Sun type joint, be formed with from the teeth outwards concavo-convex, have a pair of positive batter portion that is arranged on above-mentioned the 1st steel pipe sheet pile main and from above-mentioned positive batter portion with mutually away from the mode a pair of positive side arm portion of stretching out; Negative joint, chimeric with above-mentioned positive type joint, a pair of cloudy side arm portion that there is a pair of cloudy batter portion that is arranged on above-mentioned the 2nd steel pipe sheet pile main and stretch out in mode close to each other from above-mentioned cloudy batter portion; And plate-shaped member, between above-mentioned a pair of cloudy batter portion, be located on above-mentioned the 2nd steel pipe sheet pile main, be formed with from the teeth outwards concavo-convex.
(2) in the steel pipe sheet pile joint construction of recording in above-mentioned (1), can be also that the width dimensions Y of above-mentioned plate-shaped member and leaving apart from Z of above-mentioned a pair of positive batter portion meet
Y≤Z (formula 1).
(3) in the steel pipe sheet pile joint construction of recording in above-mentioned (1) or (2), can be also that the length dimension α 2 of the length dimension α 1 of the width dimensions Y of above-mentioned plate-shaped member, above-mentioned positive batter portion and above-mentioned positive side arm portion meets
Y<2(α 1+ α 2) (formula 2).
(4) in the steel pipe sheet pile joint construction of recording in above-mentioned (1) or (2), can be also that the length dimension β 1 of the length dimension α 1 of above-mentioned positive batter portion and above-mentioned cloudy batter portion meets
α 1> β 1 (formula 3).
(5), in the steel pipe sheet pile joint construction of recording in above-mentioned (1) or (2), can be also that the thickness of slab of the above-mentioned negative joint of thickness ratio of above-mentioned positive type joint is little.
(6) in the steel pipe sheet pile joint construction of recording in above-mentioned (1) or (2), can be also to form space by above-mentioned positive side arm portion, above-mentioned cloudy side arm portion, above-mentioned positive batter portion and above-mentioned cloudy batter portion; In above-mentioned positive type joint with position in succession, above-mentioned space on be formed with through hole.
(7), in the steel pipe sheet pile joint construction of recording in above-mentioned (6), can be also that above-mentioned through hole is formed on the corner part of above-mentioned positive type joint.
(8) the 2nd technical scheme of the present invention is a kind of steel pipe sheet pile foundation, possesses the steel pipe sheet pile joint construction that above-mentioned (1) is recorded, and above-mentioned the 1st steel pipe sheet pile main has above-mentioned positive type joint and above-mentioned negative joint; Above-mentioned the 2nd steel pipe sheet pile main has above-mentioned positive type joint and above-mentioned negative joint.
(9) the 3rd technical scheme of the present invention is a kind of steel pipe sheet pile foundation, possesses the steel pipe sheet pile joint construction that above-mentioned (1) is recorded, and above-mentioned the 1st steel pipe sheet pile main has a pair of above-mentioned negative joint; Above-mentioned the 2nd steel pipe sheet pile main has a pair of above-mentioned positive type joint.
(10) the 4th technical scheme of the present invention is the construction process of the steel pipe sheet pile foundation of above-mentioned (9) record.This construction process possesses: the operation that above-mentioned the 1st steel pipe sheet pile main is imbedded continuously by every predetermined distance; And above-mentioned the 2nd steel pipe sheet pile main is embedded to the operation between adjacent above-mentioned the 1st steel pipe sheet pile main.
Invention effect
The structure of recording according to above-mentioned (1), concavo-convex owing to being formed with on positive type joint and plate-shaped member, be filled in the packing material in the 1st packing space forming by a pair of positive batter portion, by the imaginary plane connected to each other corner part of positive type joint (following, to be singly called border imaginary plane) and the 1st steel pipe sheet pile main and be filled in the packing material in the 2nd packing space being formed by above-mentioned border imaginary plane, a pair of positive side arm portion, a pair of cloudy batter portion and the 2nd steel pipe sheet pile main so can effectively retrain.Thereby, can obtain having the steel pipe sheet pile joint construction of higher shear yield strength.
In addition, owing to only plate-shaped member being set just can improving shear yield strength by the method by welding etc. on the steel pipe sheet pile main just had in the past, so the increase of cost can be suppressed to Min..
And then, owing to adopting the structure of L-L joint in negative joint and positive type joint, so can carry out reliably the excavation of the sand in chimeric joint, and can carry out reliably the cleaning in chimeric joint, can also carry out densely to the filling of the packing material in chimeric joint.Thereby application property improves tremendously, and become stable quality, and make as described above to become adhering to of connector portions and packing material reliably, can make the shear yield strength of connector portions improve.Therefore, can realize the reduction of construction cost and the shortening of construction period.
The structure of recording according to above-mentioned (2), owing to the width dimensions Y of plate-shaped member being set as to the leaving apart from more than Z of a pair of positive batter portion, so can suitably control the mechanism of shear failure, the shear yield strength that can play stably.
The structure of recording according to above-mentioned (3), owing to the width dimensions Y of plate-shaped member being set than 2 times little of length dimension α 2 sums of the length dimension α of positive batter portion 1 and positive side arm portion, so can suitably control the mechanism of shear failure, the shear yield strength that can play stably.
The structure of recording according to above-mentioned (4), (5), because the flexural rigidity of negative joint is higher than the flexural rigidity of positive type joint, even so sun type joint and negative joint becomes afoul state in the time setting, also set resistance step-down by positive type joint distortion, can set expeditiously.And then, in the time of performance shear yield strength, by being pressed into from outside than the high negative joint of positive type joint rigidity, can suppress the distortion of positive type joint, can bring into play higher shear yield strength.
The structure of recording according to above-mentioned (6), when use the cleanings such as water jet (device of inject high pressure water) between by fill area by through hole being set on positive type joint, the outside of positive type joint, i.e. positive type joint and negative joint space opposed and that mark can be cleaned reliably.And then, in the time that packing material is filled, can make packing material roundabout the entering of type joint and the opposed space of marking of negative joint that face south by through hole.Therefore, even if adjacent steel pipe sheet pile is each other in compression chimerism, also packing material is filled in type joint and the negative joint space opposed and that mark that can face south reliably, can make to become adhering to of this packing material and each joint reliably, make the shear yield strength of connector portions to improve.
The structure of recording according to above-mentioned (7), by through hole being set at the corner part of positive type joint, can improve the fillibility of the packing material in the opposed and space of marking of on the sunny side type joint and negative joint.Therefore, the packing material of filling works as resistance, and steel pipe is also restrained to the displacement of the direction of leaving each other, so can fully guarantee the transmission of the shearing force in connector portions.
The structure of recording according to above-mentioned (8), because steel pipe sheet pile is point-symmetric shape with respect to its center, so the distortion of the steel pipe sheet pile main producing during by joint welding processing roughly produces symmetrically.Owing to producing so symmetrical distortion, so when steel pipe sheet pile main being corrected for original positive bowlder after welding, the instrument of jack etc. can be installed on the inner or outside object's position of steel pipe sheet pile main and correct, do not need complicated rectification order and large-scale apparatus for correcting, so can make the manufacture efficiency of steel pipe sheet pile improve.
The structure of recording according to above-mentioned (9), (10), in the time of the construction of steel pipe sheet pile, by a pair of steel pipe sheet pile with negative joint is set in advance, is set the steel pipe sheet pile with positive type joint between these steel pipe sheet piles, the chimeric not positive type joint of distortion in the space of the negative joint being out of shape in the mode of opening laterally because of soil pressure thus, so can not clash, can make mutual joint chimeric well, can make efficiency of construction improve.
accompanying drawing explanation
Figure 1A is the top view that represents steel pipe sheet pile foundation 100.
Figure 1B is the sectional view of Figure 1A.
Fig. 2 is the sectional view representing about the steel pipe sheet pile joint construction 1 of the 1st embodiment of the present invention.
Fig. 3 is the stereogram that represents the positive type joint 6 of this steel pipe sheet pile joint construction 1.
Fig. 4 is the stereogram that represents the plate-shaped member 8 of this steel pipe sheet pile joint construction 1.
Fig. 5 is the stereogram that represents the variation of plate-shaped member 8.
Fig. 6 A is the stereogram that represents to be located at the through hole 90 on positive type joint 6.
Fig. 6 B is the sectional view that represents above-mentioned through hole 90.
Fig. 7 A is the stereogram that represents to be located at the through hole 90 on the corner part 65 of positive type joint 6.
Fig. 7 B is the sectional view that represents above-mentioned through hole 90.
Fig. 8 is the sectional view representing about the steel pipe sheet pile joint construction 1 ' of the 2nd embodiment of the present invention.
Fig. 9 A is the figure that represents the 1st operation for building the steel pipe sheet pile foundation that uses this steel pipe sheet pile joint construction 1 '.
Fig. 9 B is the figure that represents the 2nd operation for forming the steel pipe sheet pile foundation that uses this steel pipe sheet pile joint construction 1 '.
Figure 10 is the lateral view that represents the test body of embodiments of the invention.
Figure 11 is the sectional view that represents the test body of above-described embodiment.
Figure 12 is the sectional view that represents the test body of comparative example 1.
Figure 13 is the sectional view that represents the test body of comparative example 2.
Figure 14 is the curve map that represents the result of the test of embodiment, comparative example 1, comparative example 2.
the specific embodiment
(the 1st embodiment)
Below, based on accompanying drawing to describing about the steel pipe sheet pile joint construction 1 of the 1st embodiment of the present invention.
Figure 1A represents to use the steel pipe sheet pile foundation 100 building about the steel pipe sheet pile joint construction 1 of present embodiment, and Figure 1B is the sectional view of Figure 1A.This steel pipe sheet pile foundation 100 is the open caisson foundations that support near the bridge pier of the bridge being located at river or seashore etc., multiple steel pipe sheet piles 2 spread configurations by injection in the ground G in river bed or seabed are for overlooking circle, and these steel pipe sheet piles 2 are mutually linked and formed via connector portions 3 each other.
Fig. 2 is the sectional view representing about the steel pipe sheet pile joint construction 1 of present embodiment.Connector portions 3 in this steel pipe sheet pile joint construction 1 will have below the 1st steel pipe sheet pile main 4A(, be called main 4A), the 1st steel pipe sheet pile 2A of negative joint 5, positive type joint 6 and plate-shaped member 8, with have below the 2nd steel pipe sheet pile main 4B(, be called main 4B), the 2nd steel pipe sheet pile 2B of negative joint 5, positive type joint 6 and plate-shaped member 8 links.
This steel pipe sheet pile joint construction 1 forms in the following way: the 1st steel pipe sheet pile 2A is imbedded, so that the positive type joint 6 of the 1st steel pipe sheet pile 2A is chimeric to the negative joint 5 of the 2nd steel pipe sheet pile 2B first imbedding, then, the 1st packing space A forming to the negative joint 5 by chimeric and positive type joint 6 and the 2nd packing space B fill below the cement class cured at atmosphere packing material 7(of mortar etc., are singly called packing material 7).
Negative joint 5 as shown in Figure 2, has a pair of cloudy batter portion 51,51 of extending towards main 4A on the external surface of the main 4B that is weldingly fixed on the 2nd steel pipe sheet pile 2B, from the external surface of main 4B and to be approximate right angle from the front end of this pair of cloudy batter portion 51,51 to interior lateral buckling close to each other a pair of cloudy side arm portion 52,52.As negative joint 5, can use pair of L structural section 50,50.Between the front end of a pair of cloudy side arm portion 52,52, be formed with the peristome 53 of the positive type joint 6 of receiving the 1st steel pipe sheet pile 2A.
Sun type joint 6 as shown in Figure 2, a pair of positive batter portion 61,61 of have on the external surface of the main 4A that is weldingly fixed on the 1st steel pipe sheet pile 2A, extending from the external surface of main 4A towards main 4B and from this pair of positive batter portion 61,61 front end to mutually away from lateral buckling to be approximate right angle a pair of positive side arm portion 62,62.As positive type joint 6, can use pair of L structural section 60,60.
And then as shown in Figure 3, the projection 63(on the surface of a pair of positive batter portion 61,61 mutual opposed sides with striated is concavo-convex for positive type joint 6).The projection 63 of this striated, as also represented in Fig. 3, also can be formed on the surface of a pair of positive side arm portion 62,62.
Plate-shaped member 8 is welded on the external surface of the 2nd main 4B in the mode in the face of being placed in the 1st main 4A that is provided with projection 81 as shown in Figure 2.As long as it is fixing just passable to total length or a part of length of lower end that this plate-shaped member 8 spreads all over from the upper end in the region of 51,51, a pair of cloudy batter portion.Particularly, in the case of using the region of 1/2 length from upper part to main by fixing plate-shaped member 8, can suppress cost, and give full play to shear yield strength.As plate-shaped member 8, can use as shown in Figure 4, by by concavo-convex the projection 81(from the teeth outwards with striated) the flat striped steel plate bending curved plates 8A tabular with the circular arc of main 4 same curvature or the bending steel plate 8B as shown in Figure 5 of being formed as gradually.
In above connector portions 3, by making negative joint 5 and positive type joint 6 chimeric as shown in Figure 2, on by positive batter portion 61,61, position that the external surface of border the imaginary plane connected to each other corner part of positive type joint 6 65,65 and the 1st main 4A is surrounded, form the 1st packing space A that fills packing material 7.On the position surrounding in the external surface by border imaginary plane, the 2nd main 4B and cloudy batter portion 51,51, form the 2nd packing space B of the filling packing material 7 continuous with the 1st packing space A.
Owing to forming the projection 63 of striated on the surface at positive type joint 6 and be provided with the steel plate 8 of the projection 81 that is formed with from the teeth outwards striated on the 2nd main 4B, so the improving adhering to respectively of packing material 7 of the adhering to of the packing material 7 of positive type joint 6 and the 1st packing space A, the 2nd main 4B and the 2nd packing space B.Therefore, can make the shear yield strength of connector portions 3 improve.
According to above present embodiment, by adopt the structure of L-L joint in negative joint 5 and positive type joint 6, the excavation of the 1st packing space A of connector portions 3 and the sand of the 2nd packing space B can be carried out reliably, and the cleaning of the inside of the 1st packing space A and the 2nd packing space B can be carried out reliably.And then, can carry out densely to the filling of the packing material 7 of the inside of the 1st packing space A and the 2nd packing space B.In addition,, by forming projection 63 and between a pair of cloudy batter portion 51,51, the steel plate 8 with projection 81 is set in positive batter portion 61, can retrain the 1st packing space A and the 2nd both packing materials of packing space B 7.Thereby application property improves tremendously, and can guarantee the quality of stable packing material 7.And then, the raising that can improve the shear yield strength that adheres to, realizes connector portions 3 of negative joint 5 and positive type joint 6 and packing material 7.In addition, when steel pipe sheet pile foundation 100 be subject to the horizontal force that brings because of earthquake or bring because of soil pressure etc. horizontal force time, there is each other the Relative Displacement of vertical direction at steel pipe sheet pile 2, bring into play shearing resistance by connector portions 3, but according to present embodiment, even if the relative deformation by connector portions 3 increases the shear yield strength that also can play stably, can continue to absorb larger energy.Therefore, can reduce significantly the damage bringing to steel pipe sheet pile foundation 100 entirety.
Here, about the size in steel pipe sheet pile joint construction, define as follows with reference to Fig. 2.
The length dimension α 1 of sun batter portion refers to the length dimension from the weld part of positive batter portion and main to the corner part of positive type joint.
The length dimension α 2 of sun side arm portion refers to the length dimension of the end from the corner part of positive type joint to positive side arm portion.
The length dimension β 1 of cloudy batter portion refers to the length dimension from the weld part of cloudy batter portion and main to the corner part of negative joint.
The length dimension β 2 of cloudy side arm portion refers to the length dimension of the end from the corner part of negative joint to cloudy side arm portion.
The width dimensions Y of plate-shaped member refer to plate-shaped member along the circumferential width dimensions of steel pipe.But, forming, do not consider not form the width of concavo-convex part in the concavo-convex only part at width of plate-shaped member.
Leaving apart from Z of a pair of positive batter portion refers to that a pair of positive batter portion is to the distance between the weld part of main.
In the steel pipe sheet pile joint construction 1 about present embodiment, also can be designed as, the width dimensions Y that makes plate-shaped member 8 is larger apart from Z than leaving of a pair of positive batter portion, meets
Y≤Z (formula 4)
In the case, can be by shear failure towards more guiding by the 2nd packing space B than the 1st packing space A.Therefore, can suppress the generation of oblique shear be full of cracks, the shear yield strength of playing stably.
In addition, also can be set as, the width dimensions Y that makes plate-shaped member 8, than 2 times little of length dimension α 2 sums of the length dimension α 1 of positive batter portion 61 and positive side arm portion 62, meets
Y<2(α 1+ α 2) (formula 5)
In the case, the 1st packing space A is subject to Area Ratio the 2nd packing space B of concavo-convex constraint to be subject to the area of concavo-convex constraint large.Thereby, because the stability of the 1st packing space A is better, make the size 2nd packing space B less than the 1st packing space A of main link direction produce shear breakage so can not produce shear breakage in the 1st packing space A.Thus, can suppress the generation of oblique shear be full of cracks, the shear yield strength that can play stably.
The more than 1 times of length dimension α 2 sums of the length dimension α 1 that in addition, the width dimensions Y of plate-shaped member 8 is preferably made as positive batter portion 61 and positive side arm portion 62.In the situation that being made as less than 1 times, can not give full play to the effect of raising shear yield strength as described above.
In addition,, about the steel pipe sheet pile joint construction 1 of present embodiment also can be set as, the length dimension α 1 that makes positive batter portion 61 than the length dimension β 1 of cloudy batter portion 51 greatly, meet
α 1> β 1 (formula 6)
In the case, owing to can making the flexural rigidity of negative joint 5 higher than the flexural rigidity of positive type joint 6, even if so negative joint 5 and positive type joint 6 become afoul state in the time setting, be also out of shape and set resistance step-down by positive type joint 6, can set expeditiously.And then, in the time of performance shear yield strength, by being pressed into from outside than the high negative joint 5 of positive type joint 6 rigidity, can suppress the distortion of positive type joint 6, can bring into play higher shear yield strength.
In addition, the thickness of slab of positive type joint 6 also can be less than the thickness of slab of negative joint 5.
In the case, in the time setting, in the afoul situation of joint, positive type joint 6 can easily be out of shape, and can suppress littlely by setting resistance.In addition,, by making the rigidity of negative joint 5 higher than the rigidity of positive type joint 6, the distortion of the joint can suppress to bring into play shear yield strength time, can bring into play higher shear yield strength.
And then, in the steel pipe sheet pile joint construction 1 about present embodiment, as shown in Fig. 6 A, Fig. 6 B, at least one through hole 90 also can be set on positive type joint 6.By through hole 90 is set like this, can carry out more reliably concrete filling, can make shear yield strength improve.
In addition, as shown in Figure 7 A, 7 B, on the corner part 65 that through hole 90 is located to positive type joint 6, can more effectively carry out concrete filling.
(the 2nd embodiment)
Below, based on accompanying drawing, the 2nd embodiment of the present invention is described.
In the steel pipe sheet pile joint construction 1 about the 1st embodiment, as shown in Figure 2, the 1st steel pipe sheet pile 2A and the 2nd steel pipe sheet pile 2B have respectively positive type joint 6 and negative joint 5.On the other hand, in the steel pipe sheet pile joint construction 1 ' about the 2nd embodiment, as shown in Figure 8, the 1st steel pipe sheet pile 2A ' has a pair of negative joint 5,5, the 2 steel pipe sheet pile 2B ' and has a pair of positive type joint 6,6.About other structures, be same with the structure illustrating in the 1st embodiment.
In the case of using the steel pipe sheet pile joint construction 1 ' formation base about this embodiment, preferably build by following order.
(1) as shown in Figure 9 A, main 4A ', the 4A ' with a pair of negative joint 5,5 are imbedded continuously.
(2) as shown in Figure 9 B, between main 4A ', 4A ', imbed the main 4B ' with a pair of positive type joint 6,6.
The in the situation that of such basis of formation, due to the chimeric not positive type joint 6 of distortion in the space of the negative joint 5 being out of shape in the mode of opening laterally because of soil pressure, so can not clash, can make mutual joint chimeric well, can make efficiency of construction improve.
In addition, the present invention is not only defined in above-mentioned embodiment, and comprises other structures that can reach object of the present invention etc., and such distortion shown below etc. is also contained in the present invention.
For example, in the above-described embodiment, the steel pipe sheet pile foundation 100 that the basis as bridge pier is used is illustrated, but steel pipe sheet pile foundation of the present invention is not limited to bridge pier, can use as supporting the basis of structure arbitrarily.In addition, steel pipe sheet pile joint construction of the present invention is not limited to steel pipe sheet pile foundation, constructs arbitrarily use and can serve as retaining wall or mole structure, undreground works connecting wall etc., and its purposes is not particularly limited.
In addition, in above record, disclose the structure, the method etc. that are used for implementing optimum of the present invention, but the present invention is not limited thereto.; the present invention relates generally to specific embodiment and illustrates especially and illustrate, but those skilled in the art can not depart from technological thought of the present invention and object scope to above-described embodiment in the various distortion in addition of shape, material, quantity and other detailed structure aspects.
Thereby, the above-mentioned disclosed record that defines shape, material etc. is recorded for understanding of the present invention is become easily and illustratively, be not limit of the present invention, so the record of use component names after part or all restriction of the restriction of these shapes, material etc. is removed comprises in the present invention.
Embodiment
Below, embodiments of the invention are described.
In the present embodiment, confirmed 51,51 settings of cloudy batter portion of negative joint 5 have the effect of steel plate 8 of projection 81 and the width dimensions Y that makes plate-shaped member 8 less than the length dimension α 1 of positive batter portion 61 effect of 2 times with length dimension α 2 sums of positive side arm portion 62.
At first test body is described.First, in the time making the test body of embodiment, as shown in Figures 10 and 11, prepare to have in one side radius be about 600mm arc surface 92 pair of posts 91 and at the load post 93 mutually on opposed with the arc surface 94 of the curvature identical with arc surface 92.And, on the arc surface 92 of a pillar 91 and an arc surface 94 of load post 93, the fixing positive type joint 6 being formed by each pair of L structural section 60,60 respectively.Sun type joint 6 is by being that the striped steel plate bending of 6mm forms by being provided with from the teeth outwards projection 63 and thickness of slab, the positive batter portion 61,61 that to have length dimension α 1 be 150mm and length dimension α 2 are 90mm positive side arm portion 62,62.In addition, on the arc surface 92 of another pillar 91 and another arc surface 94 of load post 93, the fixing negative joint 5 being formed by each pair of L structural section 50,50 respectively, and between this negative joint 5, fixedly there is the steel plate 8 tabular with the circular arc of arc surface 92 same curvature.This negative joint 5 forms by the steel plate bending that is 9mm by thickness of slab, the cloudy batter portion 51,51 that to have length dimension β 1 be 130mm and length dimension β 2 are 90mm cloudy side arm portion 52,52.Steel plate 8 has projection 81 from the teeth outwards, and the width dimensions Y of plate-shaped member 8 is set as the 250mm of 2 times with length dimension α 2 sums of positive side arm portion 62 less than the length dimension α 1 of positive batter portion 61.In addition, the height dimension of positive type joint 6, negative joint 5 and steel plate 8 (size of the above-below direction of Figure 10) is set as 1m.
And, pair of posts 91 is fixed on ground G1 can configure the mode of load post 93 between it, make positive type joint 6 chimeric like that as shown in Figures 10 and 11 with negative joint 5, and fill packing material 7 to the 1st packing space A and the 2nd packing space B, complete thus the test body of embodiment.
The test body of comparative example 1 as shown in figure 12, except replacement is located at the steel plate 8 between negative joint 5 and respectively each 3 deformed bars 95 is welded and fixed along the length direction of pillar 91 and load post 93 and is also being welded and fixed respectively between positive type joint 6 each 3 deformed bars 95 in the test body of embodiment, there is the structure same with the test body of embodiment.
The test body of comparative example 2 as shown in figure 13, arrange except replace the steel plate 8 that arranges in the test body of embodiment the steel plate 96 of length dimension α 1 that the width dimensions Y from the teeth outwards with projection 81 and plate-shaped member 8 is set as exceeding positive batter portion 61 and the 500mm of 2 times of length dimension α 2 sums of positive side arm portion 62, there is the structure same with the test body of embodiment.
Then, test method is described.As shown in figure 10, on one side the load post 93 of the test body of embodiment is depressed downwards, the relative deformation (movement) of measuring positive type joint 6 and negative joint 5 is on one side measured and the load that is used for depressing, the i.e. shearing force of generation between negative joint 5 and positive type joint 6.Test body for comparative example 1,2 also carries out same measurement.The relative deformation of the joint of each test body is shown in Figure 14 with the relation table of the peaked ratio with respect to shearing force.
In an embodiment, confirmed the shear yield strength that can play stably.Consider this be because, as represented with double dot dash line in Figure 11, owing to having produced shear breakage in the region B1 of the 2nd packing space B, so suppressed the generation that oblique shear is chapped.
On the other hand, if confirmed that in comparative example 1 relative deformation exceedes about 1.5mm, shearing force declines sharp.Consider this be because, as represented with double dot dash line in Figure 12, owing to having produced shear breakage in the size of pillar 91 and the link direction (above-below direction of Figure 12) of load post 93 in than B1 great region, region A1 in the 1st packing space A, so there is oblique shear be full of cracks.
In addition,, if confirmed that in comparative example 2 relative deformation exceedes 3mm, shearing force declines sharp.Consider this be because, as represented with double dot dash line in Figure 13, owing to having produced shear breakage in the size of pillar 91 and the link direction of load post 93 in than B1 great region, region A2, so there is oblique shear be full of cracks.
From with, confirmed to be provided with the embodiment of plate-shaped member 8,96 between the cloudy batter portion 51,51 of negative joint 5 and the shear yield strength of comparative example 2 is better than the comparative example 1 that is provided with deformed bar 95.In addition, confirmed the width dimensions Y of plate-shaped member 8 to be set as less than the shear yield strength of α 1 and the embodiment of 2 times of α 2 sums better with the comparative example of 2 times 2 of α 2 sums than the width dimensions scope Y of plate-shaped member 96 being set as to exceed α 1.
Utilizability in industry
The invention provides and can guarantee good application property and stable quality and realize the reduction of construction cost and steel pipe sheet pile joint construction and the steel pipe sheet pile foundation of the shear yield strength of the shortening of construction period and the connector portions that can play stably.Therefore, the present invention fully has the utilizability in industry.
Description of symbols
1 steel pipe sheet pile joint construction
1 ' steel pipe sheet pile joint construction
2 steel pipe sheet piles
2A the 1st steel pipe sheet pile
2B the 2nd steel pipe sheet pile
3 connector portions
4 steel pipe sheet pile mains
4A the 1st steel pipe sheet pile main
4B the 2nd steel pipe sheet pile main
5 negative joints
6 positive type joints
7 packing materials
8 steel plates (plate-shaped member)
8A curved plates (plate-shaped member)
8B bending steel plate (plate-shaped member)
50L structural section
51 cloudy batter portions
52 cloudy side arm portions
53 peristomes
55 corner parts
60L structural section
61 positive batter portions
62 positive side arm portions
63 projections (concavo-convex)
65 corner parts
81 projections (concavo-convex)
100 steel pipe sheet pile foundations
Claims (8)
1. a steel pipe sheet pile joint construction, is characterized in that, possesses:
The 1st steel pipe sheet pile main;
The 2nd steel pipe sheet pile main is adjacent with above-mentioned the 1st steel pipe sheet pile main;
Sun type joint, be formed with from the teeth outwards concavo-convex, have a pair of positive batter portion that is arranged on above-mentioned the 1st steel pipe sheet pile main and from above-mentioned positive batter portion with mutually away from the mode a pair of positive side arm portion of stretching out;
Negative joint, chimeric with above-mentioned positive type joint, a pair of cloudy side arm portion that there is a pair of cloudy batter portion that is arranged on above-mentioned the 2nd steel pipe sheet pile main and stretch out in mode close to each other from above-mentioned cloudy batter portion; And
Plate-shaped member is located on above-mentioned the 2nd steel pipe sheet pile main between above-mentioned a pair of cloudy batter portion, be formed with from the teeth outwards concavo-convex,
The length dimension α 2 of the length dimension α 1 of the width dimensions Y of above-mentioned plate-shaped member, above-mentioned positive batter portion and above-mentioned positive side arm portion meets
Y<2(α 1+ α 2) (formula 2).
2. steel pipe sheet pile joint construction as claimed in claim 1, is characterized in that,
The width dimensions Y of above-mentioned plate-shaped member and leaving apart from Z of above-mentioned a pair of positive batter portion meet
Y≤Z (formula 1).
3. steel pipe sheet pile joint construction as claimed in claim 1 or 2, is characterized in that,
The length dimension β 1 of the length dimension α 1 of above-mentioned positive batter portion and above-mentioned cloudy batter portion meets
α 1> β 1 (formula 3).
4. steel pipe sheet pile joint construction as claimed in claim 1 or 2, is characterized in that,
The thickness of slab of the above-mentioned negative joint of thickness ratio of above-mentioned positive type joint is little.
5. steel pipe sheet pile joint construction as claimed in claim 1 or 2, is characterized in that,
Form space by above-mentioned positive side arm portion, above-mentioned cloudy side arm portion, above-mentioned positive batter portion and above-mentioned cloudy batter portion;
In above-mentioned positive type joint with position in succession, above-mentioned space on be formed with through hole.
6. steel pipe sheet pile joint construction as claimed in claim 5, is characterized in that,
Above-mentioned through hole is formed on the corner part of above-mentioned positive type joint.
7. a steel pipe sheet pile foundation, possesses steel pipe sheet pile joint construction claimed in claim 1, it is characterized in that,
Above-mentioned the 1st steel pipe sheet pile main has above-mentioned positive type joint and above-mentioned negative joint;
Above-mentioned the 2nd steel pipe sheet pile main has above-mentioned positive type joint and above-mentioned negative joint.
8. a steel pipe sheet pile foundation, possesses steel pipe sheet pile joint construction claimed in claim 1, it is characterized in that,
Above-mentioned the 1st steel pipe sheet pile main has a pair of above-mentioned negative joint;
Above-mentioned the 2nd steel pipe sheet pile main has a pair of above-mentioned positive type joint.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009272215A JP5284249B2 (en) | 2009-11-30 | 2009-11-30 | Steel pipe sheet pile joint structure and steel pipe sheet pile foundation |
| JP2009-272215 | 2009-11-30 | ||
| PCT/JP2010/071248 WO2011065527A1 (en) | 2009-11-30 | 2010-11-29 | Joint structure for steel pipe pile, steel pipe pile foundation, and method of building steel pipe pile foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102667000A CN102667000A (en) | 2012-09-12 |
| CN102667000B true CN102667000B (en) | 2014-05-14 |
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ID=44066631
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080052956.6A Expired - Fee Related CN102667000B (en) | 2009-11-30 | 2010-11-29 | Joint structure for steel pipe pile, steel pipe pile foundation, and method of building steel pipe pile foundation |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP5284249B2 (en) |
| CN (1) | CN102667000B (en) |
| AU (1) | AU2010323440B2 (en) |
| HK (1) | HK1175219A1 (en) |
| TW (1) | TW201135012A (en) |
| WO (1) | WO2011065527A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5769608B2 (en) * | 2011-12-06 | 2015-08-26 | 日立造船株式会社 | Steel plate cell arc installation method and steel plate cell connection structure |
| CN103485310A (en) * | 2013-10-10 | 2014-01-01 | 康健 | Centrifugal rabbet tubular pile retaining wall |
| JP6441692B2 (en) * | 2015-01-22 | 2018-12-19 | 戸田建設株式会社 | Underground structure with flood control function and its construction method |
| CN104895220A (en) * | 2015-06-17 | 2015-09-09 | 长春工程学院 | Connecting joint of assembled profile steel confined concrete shear wall structure |
| WO2017090503A1 (en) * | 2015-11-27 | 2017-06-01 | 新日鐵住金株式会社 | Joint structure for steel pipe pile |
| CN105804102A (en) * | 2016-04-01 | 2016-07-27 | 上海城建市政工程（集团）有限公司 | Construction method for water cofferdam with double-barrel-shaped buckle piles |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54171209U (en) * | 1978-05-24 | 1979-12-04 | ||
| JPS57133642U (en) * | 1981-02-16 | 1982-08-20 | ||
| JPS6237412A (en) * | 1985-08-08 | 1987-02-18 | Takenaka Doboku Co Ltd | Steel pipe sheet pile construction for soft rocky group or the like |
| JP3368398B2 (en) * | 1994-07-19 | 2003-01-20 | 日本鋼管株式会社 | Fitting member and fitting structure |
| JPH11140863A (en) * | 1997-11-14 | 1999-05-25 | Kawasaki Steel Corp | Joint member of steel pipe sheet pile, joint structure, and steel pipe sheet pile foundation using the same |
| JP3873007B2 (en) * | 2001-06-28 | 2007-01-24 | 清水建設株式会社 | Construction method of steel pipe sheet pile joint structure |
| JP2004353337A (en) * | 2003-05-29 | 2004-12-16 | Jfe Steel Kk | Joint member and joint structure for steel pipe sheet pile |
| JP2005220573A (en) * | 2004-02-04 | 2005-08-18 | Yokoyama Kiso Koji:Kk | Pile driving method |
| JP4674052B2 (en) * | 2004-03-30 | 2011-04-20 | 新日本製鐵株式会社 | Steel pipe sheet pile joint, steel pipe sheet pile joint structure and steel pipe sheet pile foundation |
| JP4827456B2 (en) * | 2005-08-05 | 2011-11-30 | 鹿島建設株式会社 | Construction method of steel pipe sheet pile structure and steel pipe sheet pile structure |
| CN1837512B (en) * | 2006-04-07 | 2011-04-20 | 上海市政工程设计研究总院 | Combined cofferdam of steel slab pile and steel pipe pile an method for manufacturing the same |
-
2009
- 2009-11-30 JP JP2009272215A patent/JP5284249B2/en active Active
-
2010
- 2010-11-24 TW TW99140538A patent/TW201135012A/en unknown
- 2010-11-29 WO PCT/JP2010/071248 patent/WO2011065527A1/en active Application Filing
- 2010-11-29 CN CN201080052956.6A patent/CN102667000B/en not_active Expired - Fee Related
- 2010-11-29 AU AU2010323440A patent/AU2010323440B2/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102667000A (en) | 2012-09-12 |
| JP5284249B2 (en) | 2013-09-11 |
| WO2011065527A1 (en) | 2011-06-03 |
| TW201135012A (en) | 2011-10-16 |
| JP2011111872A (en) | 2011-06-09 |
| AU2010323440A1 (en) | 2012-06-07 |
| HK1175219A1 (en) | 2013-06-28 |
| AU2010323440B2 (en) | 2016-03-31 |
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