CN102249053B - Cargo container - Google Patents
Cargo container Download PDFInfo
- Publication number
- CN102249053B CN102249053B CN2011101018244A CN201110101824A CN102249053B CN 102249053 B CN102249053 B CN 102249053B CN 2011101018244 A CN2011101018244 A CN 2011101018244A CN 201110101824 A CN201110101824 A CN 201110101824A CN 102249053 B CN102249053 B CN 102249053B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- upper flange
- bottom girder
- width dimensions
- web
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/02—Large containers rigid
- B65D88/12—Large containers rigid specially adapted for transport
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/004—Contents retaining means
- B65D90/006—Contents retaining means fixed on the floor of the container
Abstract
Disclosed is a cargo container provided with a pair of bottom side rails arranged along lower edges of a pair of side panels, wherein a bottom pallet comprises a plurality of joists provided to extend between the pair of bottom side rails, and a bottom surface arranged on the joists, and wherein, in the cross sectional view, the joist comprises a web extending in the direction substantially parallel with the extending direction of a corner post, an upper flange extending from an upper end of the web in the direction substantially parallel with the extending direction of the bottom side rail, a lower flange facing the upper flange and extending from a lower end of the web in the direction substantially parallel with the extending direction of the bottom side rail, and an upper lip extending downward from a tip end of the upper flange in the direction substantially parallel with the extending direction of the corner post.
Description
Technical field
The present invention relates to be used for lade and reach the goods freight container of terrestrial transportation goods at sea, on one side relate in particular to the preferred goods freight container of institute when one side expendable weight improves parts bearing capacity (endurance).
The application advocates its preceence and has quoted content wherein based on being willing to 2010-112491 number the spy that Japan proposes on May 14th, 2010.
Background technology
The goods of shipping goods mainly by the metal component set-up of steel, corrosion-resistant steel, aluminium etc., constitutes rectangular-shaped casing with freight container.In addition, at inner lade, for example utilizing, the transportation means of boats and ships, truck, railway etc. transports this goods with freight container.And, in recent years, based on the viewpoint of earth environment protection, in the field of logistics, the motion of cutting down along with the discharge rate of greenhouse gases surging is also underway for the lightweight of the mobile means of the boats and ships that transport goods, truck, railway etc.The goods freight container is to transport by these mobile means, therefore, preferably realizes the lightweight of freight container self, can realize comprising mobile means thus in interior single-piece lightweight, and then realizes the earth environment protection.Under such background, though the weight-saving requirement with freight container increases gradually to goods, on one side need guarantee especially anti-lotus performance as for example ISO defined of the global standards between countries in the world, Yi Bian realize lightweight.
In addition, as the form of goods, generally be to have following structure: the chassis of rectangular shape (end パ レ ッ ト) with freight container; At upright a pair of side panel and a pair of front and rear panel of establishing in 4 limits on this chassis; A plurality of corner posts between the side edge part of upright that establish, the side edge part that is used to connect above-mentioned side panel in the bight on above-mentioned chassis and above-mentioned front and rear panel; Be arranged on the corner casting (corner fitting) of the upper end and the lower end of these corner posts; And be connected with the rising wood of above-mentioned side panel and above-mentioned front and rear panel and the top panel that is provided with.And, the chassis constitute have extend on the short side direction of freight container and and the following ora terminalis bonded assembly bottom side rail (bottom side rail) of side panel between a plurality of bottom girders (root is material too) of setting up and the base plate (bed surface material) (for example, with reference to patent documentation 1) that is supported on the upside of these bottom girders.
In the patent documentation 1 bottom girder (crossbeam (horizontal root too)) of record have up and down the web (web) that extends (main wall portion), the upper flange (upper wall portions) that extends to a side from the upper end of web and from the lower end of web to the lower flange (lower wall portion) of side extension.Bottom girder forms roughly C font of cross section, is fixed with base plate by screw thread (ね じ the ends め) mode of fixing on upper flange.The wheel load of the fork truck of considering the carrying loading and travelling in freight container etc., such goods is designed to can guarantee the parts bearing capacity with respect to the flexure stress of effect therefrom with the bottom girder of freight container.
On the other hand, as be not goods with freight container with but the slim light weight shape steel that uses in the building, known have a band edge channel-section steel (for example, with reference to patent documentation 2).
The band edge channel-section steel of record has web, begins to bend a pair of edge (lip) that extends abreast with web with the continuous pair of flanges (flange) of an end of this web and other ends and from these flange front ends in the patent documentation 2, and this band edge channel steel shape becomes roughly C font of cross section.And such band edge channel-section steel also is utilized as the counter-bending material of beam etc.The neutral axis of this channel-section steel is positioned at the centre of web, and under such flexure stress state that flange that the flange and the edge of a side is tensile side, opposite side and edge are compressed side, load in the channel-section steel impedance.
The look-ahead technique document
Patent documentation
Patent documentation 1: TOHKEMY 2004-276936 communique
Patent documentation 2: TOHKEMY 2005-105557 communique
The problem that invention will solve
Yet,, consider that the strength of material (yield strength) that needs to improve each parts reduces (attenuate) parts cross sections (thickness of slab) from the weight-saving viewpoint of freight container.But, as bottom girder in the past, be under the situation of compressed side at upper flange, if the attenuate thickness of slab then upper flange buckle in advance, can not obtain anti-bending bearing capacity (bent げ endurance) based on predetermined strength.Therefore, can consider the band edge channel-section steel of patent documentation 2 is used as bottom girder, but in this case, have chance with owing to also form on the lower flange, resident water, dust, salt branch become the reason of getting rusty on lower flange, thus the problem that the product life of generation freight container shortens.Like this, in structure in the past, existence can not be tackled the problem of following requirement,, realizes lightweight when guaranteeing with respect to the parts bearing capacity of bend loading that is, and realizes the long-term requirement of durable years.
Summary of the invention
The object of the present invention is to provide and a kind ofly can when guaranteeing, realize lightweight, and can realize the long-term goods freight container of durable years for the bearing capacity of the bottom girder of bend loading.
Be used to solve the method for problem
The goods freight container of a mode of the present invention possesses: the chassis of rectangular shape; The a pair of side panel and a pair of front and rear panel that erect from 4 limits on this chassis; Corner post stands the bight that is located at above-mentioned chassis, connects each side edge part of above-mentioned side panel and front and rear panel; And top panel, be provided with the rising wood of above-mentioned side panel and front and rear panel with being connected; Above mentioned goods is characterised in that to possess along the pair of lower beam of each time ora terminalis configuration of above-mentioned a pair of side panel with freight container; Above-mentioned chassis has across between the above-mentioned pair of lower beam and a plurality of bottom girders that are provided with, and is located at the base plate on these bottom girders; In that being carried out, above-mentioned bottom girder has under the situation of cross-sectional view: web, extend with the bearing of trend almost parallel ground of above-mentioned corner post; Upper flange extends from the upper end of this web and the bearing of trend almost parallel ground of above-mentioned bottom side rail; Lower flange, relative with this upper flange, extend from the lower end of above-mentioned web and the bearing of trend almost parallel ground of above-mentioned bottom side rail; And upper limb, extend downwards with the bearing of trend almost parallel ground of above-mentioned corner post front end from above-mentioned upper flange.
(2) according to the goods freight container of above-mentioned (1) record, in above-mentioned bottom girder, preferably utilize thickness of slab size t and YIELD STRENGTH F, the width dimensions a of the par of above-mentioned upper flange satisfies following formula (1).
At this, the unit of width dimensions a is mm, and the unit of thickness of slab size t is mm, and the unit of yield strength F is MPa.
(3) according to the goods freight container of above-mentioned (1) or (2) record, in above-mentioned bottom girder, the width dimensions of preferred above-mentioned lower flange is bigger than the width dimensions of above-mentioned upper flange.
(4) goods of record is used in the freight container in above-mentioned (1) or (2), in the cross section of above-mentioned bottom girder, preferably and between the thickness of slab center of the neutral axis of above-mentioned web quadrature and above-mentioned upper flange apart from d, and the relation between the height dimension h of the par of above-mentioned web satisfies following formula (2).
0.45h≤d≤0.60h ... formula (2)
In addition, between the thickness of slab center of upper flange and the neutral axis apart from the more preferably scope of 0.475h≤d≤0.55h of d.
(5) use in the freight container at the goods of above-mentioned (1) or (2) record, go up in above-mentioned bottom girder, at the width dimensions A that utilizes thickness of slab size t, YIELD STRENGTH F and upper flange, use following formula (3) to come under the situation of computational constant M, preferably utilize the yield strength F of above-mentioned constant M, above-mentioned thickness of slab size t and above-mentioned material, the length dimension C of the above-mentioned upper limb when observing by the cross section vertical with the bearing of trend of above-mentioned bottom girder satisfies following formula (4).
［ 2.8t { (A/t) for M=max
2-28000/F }
1/6, 4.8t ］ ... formula (3)
At this, the unit of thickness of slab size t is mm, and the unit of yield strength F is MPa, and the unit of the width dimensions A of upper flange is mm.
The invention effect
Goods freight container according to above-mentioned (1) record, form bottom girder by having the upper limb that extends from the front end of upper flange downwards, even under the situation of attenuation, become the buckling strength of the upper flange of compressed side in the time of also can improving bend loading at the strength of material that improves this bottom girder.Thus, early stage the buckling of upper flange can be prevented, parts bearing capacity can be guaranteed with respect to bend loading.In addition, lower flange becomes tensile side and does not produce and buckles during bend loading.By making the open shape of the smooth and front end of being shaped as of this lower flange, can prevent resident water on lower flange, prevent from the deterioration that causes because of getting rusty from can realize the long-term of durable years.Therefore, can either guarantee the bearing capacity and the durable years of parts, again can be by strength of material that improves bottom girder and the lightweight that bottom girder is realized in attenuate parts cross section.Thus, can bring goods, make and cut down, even the viewpoint of earth environment protection be preferred formation from the discharge rate of greenhouse gases with the lightweight of freight container single-piece.
According to the goods freight container of above-mentioned (2) record, be set at ratio by width dimensions a with the par of upper flange
Greatly, be about to flakiness ratio (a/t) with respect to thickness of slab size t and be set at greatlyyer, can make bottom girder become thinner.Under this situation, with in structure in the past if the width dimensions a ratio that becomes
Big then situation that buckle is easily compared, and among the present invention, forms upper limb as described above, can prevent early stage the buckling of upper flange.On the other hand, be set at by width dimensions a the par of upper flange
Below, promptly, the width dimensions a of the par of upper flange is set at below the limit width, can prevents buckling of upper flange reliably, even described limit width is at the width that has the possibility of buckling by upper limb and web under the state that the two ends of upper flange have been limited.Therefore, become the buckling of upper flange of compressed side in the time of can preventing bend loading reliably, can not produce the invalid part that is accompanied by the parts cross section of buckling, the gross section becomes free area, can realize lightweight in efficient ground.
According to the goods freight container of above-mentioned (3) record, be set at greatlyyer than the width dimensions of upper flange by width dimensions with lower flange, become the sectional area of the lower flange of tensile side in the time of can increasing bend loading, can improve anti-bending bearing capacity.In addition, by increasing the sectional area of lower flange, can make the sectional area of the total sectional area of upper limb and upper flange near lower flange.Thus, make the upside of bottom girder and downside obtain balance.Therefore,, neutral axis is positioned near the web centre owing to can suppress the make progress off-centre of flange side of neutral axis, in the time of can making the gross section become free area, the section factor of compression edge and the section factor of stretching edge become same degree.Thus, by suppressing the early stage surrender of a certain side in compression edge or the stretching edge, can guarantee anti-bending bearing capacity.
Goods freight container according to above-mentioned (4) record, as mentioned above, by neutral axis is positioned near the centre of short transverse of web, can make when the gross section is free area, the section factor of compression edge and the section factor of stretching edge become same degree.Thus, the early stage surrender of a certain side by suppressing compression edge or stretching edge can be guaranteed the anti-bending bearing capacity of bottom girder.
Goods freight container according to above-mentioned (5) record is set at more than the constant M by the length dimension C with upper limb, can prevent buckling of upper flange effectively.In addition, by length dimension C is set at
Below, can prevent buckling of upper limb self, before the anti-bending bearing capacity of performance regulation, the each several part of bottom girder is buckled, thereby can bring into play function as free area.
Description of drawings
Fig. 1 be the expression an embodiment of the invention goods with cutting of freight container the block diagram after the part.
Fig. 2 is the amplification sectional view of the goods of presentation graphs 1 with the bottom girder on the chassis in the freight container.
Fig. 3 is the section drawing of expression with the bottom girder of the embodiment 1 of cargo-type container.
Fig. 4 is the section drawing of expression with the bottom girder of the embodiment 2 of cargo-type container.
Fig. 5 is the section drawing of the bottom girder of expression comparative example.
Fig. 6 is the chart of the analysis result of expression embodiment and comparative example.
Fig. 7 is a chart of representing other analysis result.
Fig. 8 is a chart of representing other analysis result.
Fig. 9 is a chart of representing other analysis result.
The specific embodiment
Below, based on accompanying drawing an embodiment of the invention are described.
The goods of an embodiment of the invention is made of casing with freight container 1 as shown in Figure 1, can lade.Goods constitutes with the metal of freight container 1 by steel, corrosion-resistant steel, aluminium etc.Therefore goods is to transport by for example transportation means of boats and ships, truck, railway etc. with the prerequisite of freight container 1, and the interchangeability when improving its transportation, the viewpoint of convenience have adopted the specification based on the standard of for example ISO etc.
Goods possesses with freight container 1: the chassis 2 of rectangular shape; The a pair of side panel 3 and a pair of front and rear panel 4 that erect from 4 limits on this chassis 2; The upright bight that is located at above-mentioned chassis 2 is with each side edge part bonded assembly corner post 5 of side panel 3 and front and rear panel 4; The top panel 7 that is provided with the rising wood of above-mentioned side panel 3 and front and rear panel 4 with being connected.In addition, goods possesses the corner casting 6 that engages with the upper end and the lower end of these corner posts 5 with freight container 1 and along the bottom side rail 10 of each time ora terminalis configuration of a pair of side panel 3.
Side panel 3 and front and rear panel 4 are separately positioned on the chassis 2, and interconnect by corner post 5 between the adjacent plate 3,4.Adjacent side panel 3 and front and rear panel 4 are the mutual roughly relation of quadrature.In addition, side panel 3, front and rear panel 4 and top panel 7 for example are made of corrugated steel, and this corrugated steel is that the relatively thin steel plate of 1.5mm～2mm degree constitutes by thickness.Goods is provided with not shown shutter door with certain face of the side of freight container 1, front-back, end face, from lade in freight container here.For example, on front-back some, be provided with under the situation of shutter door, fork truck etc. from this door to goods with freight container 1 inner discrepancy, move into or take out of loading.
Then, based on Fig. 2 the formation of bottom girder 8 is elaborated.
At this, with the face direction of front and rear panel 4 as directions X (Width), with the face direction of side panel 3 as Y direction (length direction), with the bearing of trend of corner post 5 as the Z direction.In addition, bottom girder 8 under the situation of carrying out cross-sectional view (flat section Visual), carries out bending machining or roll forming and forms the long chi shape that extends and cross section be C font roughly between bottom side rail 10 steel plate of weather resisting steel etc. as shown in Figure 2.
In addition, be formed with bending part 15, be formed with bending part 16 at the connecting bridge of upper flange and upper limb 14 at the connecting bridge of web 11 and upper flange 12.And shape has the par 17 of upper flange 12 between bending part 15,16, and is formed with the flat portion 18 of upper limb 14 in the lower end side of bending part 16.In addition, be formed with bending part 19, between folding part 15,19, be formed with the par 20 of web 11 at the connecting bridge of web 11 and lower flange 13.Form the par 21 of lower flange 13 in the front of this bending part 19, the front-end edge of this par 21 is the bearing of trend side directions at bottom side rail 10) go up open open ora terminalis 22.
In such bottom girder 8, the each several part size is defined as follows as shown in Figure 2.
A: the width dimensions of upper flange 12 ［ mm ］
A: the width dimensions ［ mm ］ of the par 17 of upper flange 12
B: the width dimensions of lower flange 13 ［ mm ］
B: the width dimensions ［ mm ］ of the par 21 of lower flange 13
H: the height dimension of web 11 ［ mm ］
H1: the distance between centers ［ mm ］ of going up the thickness of slab of lower flange 12,13
H: the height dimension ［ mm ］ of the par 20 of web 11
C: the edge of upper limb 14 long ［ mm ］
C: the length dimension ［ mm ］ of the par 18 of upper limb 14
T: thickness of slab size ［ mm ］
R: bending part 15,16, the center radius of 19 thickness of slab ［ mm ］
U: bending part 15,16, the center shaft length of 19 thickness of slab (=π R/2) ［ mm ］
D: the distance ［ mm ］ of the thickness of slab center of upper flange 12 and neutral axis X
In addition, bottom girder 8 used YIELD STRENGTH are defined as F ［ Mpa ］.
In the above bottom girder 8, the each several part size is stipulated by following formula (1)～formula (3).
At first, the width dimensions a of the par 17 of upper flange 12 then is set at the relation that satisfies following formula (1) if use thickness of slab size t and yield strength F.
At this, for example, be under the situation of 550MPa at yield strength F, if thickness of slab size t is 2.1mm, then the width dimensions a of par 17 is 21.5mm＜a≤66.3mm.If thickness of slab size t is 2.5mm, then the width dimensions a of par 17 is 25.6mm＜a≤78.9mm.In addition, be under the situation of 700MPa at yield strength F, if thickness of slab size t is 2.1mm, then the width dimensions a of par 17 is 19.0mm＜a≤58.7mm.If thickness of slab size t is 2.5mm, then the width dimensions a of par 17 is 22.7mm＜a≤69.9mm.
That is,,, width dimensions need be set at below the left side of a formula (1) therefore in order to prevent buckling of upper flange because bottom girder does not in the past possess upper limb.Thus, for example, be that 355MPa, thickness of slab size t are under the situation of 4.0mm at yield strength F, width dimensions a is the size of the following practicality of 50mm degree.Yet if yield strength F is increased to 550MPa and makes thickness of slab size t be thinned to 2.5mm, width dimensions a is limited in below the 25.6mm degree, can not constitute practical part dimension, therefore is difficult to make thickness of slab size t attenuation.To this, the bottom girder 8 of present embodiment is by being provided with upper limb 14, the width dimensions a of the par 17 of upper flange 12 is set at bigger and smaller or equal to the right than the left side of formula (1), even yield strength F is being brought up under the situation of 550MPa or 700MPa, also can prevent buckling of upper flange 12, even and thickness of slab size t is thinned to 2.0mm degree～3.0mm degree, also can in the scope of the width dimensions a of practicality, form bottom girder 8.
Then, the width dimensions B of lower flange 13 is set at identical,, is preferably set to bigger than the width dimensions A of upper flange 12 perhaps as shown in the formula shown in (2) with the width dimensions A of upper flange 12.
A＜B ... formula (2)
In addition, preferably will be set at apart from the relation between the height dimension h of the par 20 of d and web 11 and satisfy following formula (3), its middle distance d is the distance between the thickness of slab center of neutral axis X in the cross section of bottom girder 8 and the web quadrature and upper flange 12.
0.45h≤d≤0.60h ... formula (3)
In addition, satisfy formula (3) apart from d and get final product, more preferably be set at the relation that satisfies following formula (4).
0.475h≤d≤0.55h ... formula (4)
Between the thickness of slab center of width dimensions A, B, neutral axis X and upper flange 12 by lower flange in such setting 12,13 apart from d, realize the raising of anti-bending bearing capacity thereby upper flange 12 and lower flange 13 the two actvies are played a role.
Then, utilize thickness of slab size t, yield strength F, then long (length dimension) C of the edge of the upper limb 14 in the bottom girder 8 is preferably set to the relation that satisfies following formula (5).
At this, constant M is the width dimensions A that utilizes thickness of slab size t, yield strength F and upper flange 12, calculates by following formula (6).
［ 2.8t { (A/t) for M=max
2-28000/F }
1/6, 4.8t ］ ... formula (6)
By the long C of the edge of such setting upper limb 14, prevented buckling of upper flange 12 effectively, and can prevent buckling of upper limb 14 self.Its result before the anti-bending bearing capacity of performance regulation, can not make the each several part of bottom girder 8 buckle, thereby can play a role as free area.
According to above-mentioned such present embodiment, form bottom girder 8 by having upper limb 14 ground, even at the yield strength F that has improved bottom girder 8 and make under the situation of thickness of slab size t attenuation, become early stage the buckling of the upper flange 12 of compressed side in the time of also can preventing bend loading, can guarantee parts bearing capacity with respect to bend loading.In addition, lower flange 13 is that tensile side can not produce and buckles when bend loading.Because this lower flange 13 is formed flatly and front end is open, therefore can prevent resident water, dust, salinity on lower flange 13, prevent the deterioration that causes by getting rusty, thereby the realization durable years is long-term.Therefore, parts bearing capacity and the durable years stipulated can either be guaranteed, the lightweight of bottom girder 8 can be realized again by the strength of material attenuate parts cross section of improving bottom girder 8.In addition, can realize goods freight container 1 single-piece lightweight.
Embodiment
Below, with freight container 1, the result behind the parts bearing capacity of having studied bottom girder 8 is described at the goods of an embodiment of the invention.
Fig. 3 is the section drawing of the bottom girder 8 of the embodiment (embodiment 1) that represents an embodiment of the invention briefly, and Fig. 4 represents other the section drawing of bottom girder 8 of embodiment (embodiment 2) of the present invention briefly.In addition, Fig. 5 is the simple expression section drawing of the bottom girder 800 of example (comparative example 1,2) in the past.At this, in Fig. 4 and Fig. 5, omit the common R=1.5t of the thickness of slab center radius R(～3t degree of bending part) illustrate, suitably set according to the formability of material and get final product.Like this, in the explanation of embodiment and comparative example, owing to omitted the thickness of slab center radius R of bending part, in the following description, with the width dimensions of the par 17 of width dimensions a(upper flange 12) as the width dimensions of width dimensions A(upper flange 12) describe.Under the situation of the thickness of slab center radius R that has set bending part, suitably with width dimensions A(upper flange width dimensions) change the width dimensions of the par of width dimensions a(upper flange into) get final product.
In the present embodiment, the bearing capacity ratio of each bottom girder 18,28,800 and the bearing capacity ratio of per unit weight have been compared.
(embodiment)
The yield strength F of the bottom girder 18 of embodiment 1 is 550MPa, and thickness of slab size t is 2.5mm.As shown in Figure 3, the height dimension H with web 11 of bottom girder 18 is 122mm, and the width dimensions A of upper flange 12 is 45mm, and the width dimensions B of lower flange 13 is 45mm, and the long C of the edge of upper limb 14 is the cross section of 23mm.That is, the width dimensions B of the width dimensions A of the upper flange 12 of bottom girder 18 shown in Figure 3 and lower flange 13 is set at identical.
The yield strength F of the bottom girder 28 of embodiment 2 is 550MPa, and thickness of slab size t is 2.5mm.As shown in Figure 4, the height dimension H with web 11 of bottom girder 28 is 122mm, and the width dimensions A of upper flange 12 is 45mm, and the width dimensions B of lower flange 13 is 60mm, and the long C of the edge of upper limb 14 is the cross section of 23mm.That is it is bigger than the width dimensions A of the upper flange 12 of bottom girder shown in Figure 4 28, to be set at the width dimensions B of lower flange 13.At this moment, in embodiment 1, the width dimensions A of upper flange 12 is identical with the width dimensions B of lower flange 13, and the neutral axis X of bottom girder 18 is positioned at the upside of the midway location of web 11.On the other hand, in embodiment 2 because the width dimensions B of lower flange 13 is bigger than the width dimensions A of upper flange 12, thus the neutral axis X of bottom girder 28 be positioned at web midway location near.
(comparative example)
The bottom girder 800 of comparative example 1,2 as shown in Figure 5, the height dimension H of web 811 is 122mm, the width dimensions A of upper flange 812 is 45mm, the width dimensions B of lower flange 813 is 45mm, forms the cross section C font roughly that does not possess upper limb.And, as a comparative example 1, yield strength F is 355MPa, thickness of slab size t is 4.0mm.As a comparative example 2, yield strength F is 550MPa, and thickness of slab size t is 2.5mm.As a comparative example, used this comparative example 1,2.At this, in the bottom girder 800 of comparative example, the width dimensions A(=45mm of upper flange 812) left side of not enough formula (1) in comparative example 1
, therefore do not satisfy formula (1).In comparative example 2, the width dimensions A(=45mm of upper flange 812) exceeded the left side of formula (1)
Therefore, the bottom girder 800 of comparative example 1 was set at before upper flange 812 arrives yield strength F and does not buckle, and the bottom girder 800 of comparative example 2 is set at upper flange 812 buckles under the stress littler than yield strength F.
Fig. 6 is the chart of the bearing capacity ratio of the bearing capacity ratio of expression embodiment and comparative example and per unit weight.At this, the bearing capacity of the anti-bending bearing capacity of comparative example 1 and per unit weight as 1, is illustrated the bearing capacity ratio of bearing capacity ratio and per unit weight.
The yield strength F of the bottom girder 800 of comparative example 2 is that 550MPa and thickness of slab size t attenuate are 2.5mm by high strength, so the bearing capacity ratio of per unit weight is greater than the bottom girder 800 of comparative example 1, and upper flange 812 is buckled as mentioned above.Thus, compare with the bottom girder 800 of comparative example 1, bearing capacity drops to the degree below 80%.
The bottom girder 18 of embodiment 1 is identical with the bottom girder 800 of comparative example 2, and yield strength F is that 550MPa and thickness of slab size t attenuate are 2.5mm by high strength, and the upper flange 12 that is provided with upper limb 14 is not buckled, and comparative example 2 such bearing capacities lowly do not take place.That is, brought into play the equal above bearing capacity of the bottom girder 800 of comparative example 1 as can be known, and the bearing capacity of per unit weight rises.In addition we know, the bottom girder 28 of embodiment 2 comes enlarged cross section long-pending by the width dimensions B that increases lower flange 13, with centre, the position of the neutral axis X of web quadrature near web 11, acquisition becomes the intensity balance between the lower flange of tensile side when becoming the intensity of upper flange of compressed side and bend loading when bend loading, compare bearing capacity with embodiment 1 and rise, and the bearing capacity of per unit weight also rises.
Then, in the bottom girder 18,28 of the shape of table shown in 1-1～table 4-2, studied the variation of the bearing capacity of position based on neutral axis X (between the thickness of slab center of upper flange 12 and the neutral axis X apart from d).At this, Fig. 7～Fig. 9 is the chart about the result of study of bottom girder 18,28, and Fig. 7 is based on the chart of table 1-1～table 2-2, and Fig. 8 is based on the chart of table 3-1,3-2, and Fig. 9 is based on the chart of table 4-1,4-2.It is chart about the result of study of the cooresponding bottom girder 18,28 of difference.In addition, in each chart of Fig. 7～Fig. 9, utilize the central authorities of the position of neutral axis X, promptly carried out benchmark apart from the bearing capacity of d under the situation at 1/2 place of the thickness of slab distance between centers h1 of last lower flange 12,13 between the thickness of slab center of upper flange 12 and the neutral axis X in the short transverse of web 11.
[table 1-1]
[table 1-2]
[table 2-1]
[table 2-2]
[table 3-1]
[table 3-2]
[table 4-1]
[table 4-2]
Shown in the chart of Fig. 7～Fig. 9, be positioned under the situation (d/h1=0.5) of central authorities of short transverse of web 11 at neutral axis X as can be known, bearing capacity becomes maximum, if d/h1 become than 0.5 big or than 0.5 little then bearing capacity reduces.And, can guarantee that as can be known the scope of the neutral axis X position of the bearing capacity that 90% degree of maximum load capacity is above is above-mentioned formula (3), can guarantee that the scope of the neutral axis X position of the bearing capacity that 95% degree of maximum load capacity is above is above-mentioned formula (4).
In addition, on the contrary, thereby for the width dimensions B acquisition formula (3) of regulating lower flange 13 or the neutral axis X position of formula (4), as long as make the width dimensions b of par 21 satisfy following formula (3 ') or formula (4 ').In addition, the g(d in the formula) be the function of the represented d of formula (7).
a＋R＋t／2≤b≤g（0.60h）…（3’）
g（0.475h）≤b≤g（0.55h）…（4’）
g（d）＝｛h（h／2＋R）＋bh1＋0.363R＋2u（h＋1.637R）＋c（R＋h－c／2）｝／｛h1－d｝－（h＋b＋c＋3u）＋R＋t／2…（7）
As mentioned above, by satisfying formula (3) or formula (3 '), can guarantee the above bearing capacity of 90% degree of maximum load capacity.In addition,, the above bearing capacity of 95% degree of maximum load capacity can be guaranteed,, the lightweight of bottom girder 18,28 can be realized even the attenuate thickness of slab also can be kept anti-bending bearing capacity as mentioned above by satisfying formula (4) or formula (4 ').
In addition, the present invention not only is defined in above-mentioned embodiment, also comprises other the formation etc. that can reach purpose of the present invention, and distortion shown below etc. is also included within the present invention.
For example, in the above-described embodiment, be that 550MPa or 700MPa are that example is illustrated with bottom girder 8,18,28 employed YIELD STRENGTH F, but yield strength F not only is defined as 550MPa～700MPa.In addition, yield strength F also is not limited only to normal intensity, also can set according to the intensity of actual conditions.In addition, in the above-described embodiment, be illustrated for the certain situation in gross section, not only be defined in this, also the cross section that can have the thickness of slab change in size according to the difference at the position of bottom girder with the thickness of slab size t of bottom girder 8,18,28.In addition, in the above-described embodiment, illustration form the situation of bottom girder 8,18,28 by bending machining, roll forming, but also can assemble a plurality of sheet materials and form bottom girder by welded joint.
In addition, formation, method that is used for implementing the best of the present invention etc. is disclosed in above record, but the present invention not only is defined in this.Promptly, the present invention is primarily aimed at specific embodiment and has carried out specific diagram, and be illustrated, but in the scope of thought that does not break away from technology of the present invention and purpose, those skilled in the art can carry out multiple distortion to the embodiment shape shown in above, material, quantity, other detailed formation.
Therefore, the record that defines above-mentioned disclosed shape, material etc. is illustrative content for the ease of understanding the present invention, and the present invention not only is defined in this.Therefore, utilize part or all record that limits the title of parts afterwards of the qualification of having removed above-mentioned shape, material etc. to be also included within the present invention.
Nomenclature
1 ... the goods freight container
2 ... the chassis
3 ... side panel
4 ... front and rear panel
5 ... corner post
6 ... corner casting
7 ... top panel
8 ... bottom girder
9 ... base plate
10 ... bottom side rail
11 ... web
12 ... upper flange
13 ... lower flange
14 ... upper limb
17,21 ... the par
X ... neutral axis
Claims (4)
1. goods freight container possesses:
The chassis of rectangular shape;
The a pair of side panel and a pair of front and rear panel that erect from four limits on this chassis;
Corner post stands the bight that is located at above-mentioned chassis, connects each side edge part of above-mentioned side panel and front and rear panel; And
Top panel, the ground connection that links to each other with the rising wood of above-mentioned side panel and front and rear panel is provided with;
Above mentioned goods is characterised in that with freight container,
Possess along the pair of lower beam of each time ora terminalis configuration of above-mentioned a pair of side panel;
Above-mentioned chassis has across between the above-mentioned pair of lower beam and a plurality of bottom girders that are provided with, and is located at the base plate on these bottom girders;
Above-mentioned bottom girder is being carried out under the situation of cross-sectional view,
Have: web, with the bearing of trend almost parallel ground extension of above-mentioned corner post; Upper flange extends from the upper end of this web and the bearing of trend almost parallel ground of above-mentioned bottom side rail; Lower flange, relative with this upper flange, extend from the lower end of above-mentioned web and the bearing of trend almost parallel ground of above-mentioned bottom side rail; And upper limb, extend downwards with the bearing of trend almost parallel ground of above-mentioned corner post front end from above-mentioned upper flange,
In above-mentioned bottom girder, by thickness of slab size t and YIELD STRENGTH F, the width dimensions a of the par of above-mentioned upper flange satisfies following formula (1),
Here, the unit of width dimensions a is mm, and the unit of thickness of slab size t is mm, and the unit of yield strength F is MPa.
2. goods freight container as claimed in claim 1 is characterized in that,
In above-mentioned bottom girder, the width dimensions of above-mentioned lower flange is bigger than the width dimensions of above-mentioned upper flange.
3. goods freight container as claimed in claim 1 is characterized in that,
In the cross section of above-mentioned bottom girder, satisfy following formula (2) apart from the relation between the height dimension h of the par of d and above-mentioned web, above-mentioned apart from d be and the thickness of slab center of the neutral axis of above-mentioned web quadrature and above-mentioned upper flange between distance,
0.45h≤d≤0.60h ... formula (2).
4. goods freight container as claimed in claim 1 is characterized in that,
In above-mentioned bottom girder, at the width dimensions A by thickness of slab size t, YIELD STRENGTH F and upper flange and use following formula (3) to come under the situation of computational constant M,
By the yield strength F of above-mentioned constant M, above-mentioned thickness of slab size t and above-mentioned material, the length dimension C of the above-mentioned upper limb the when cross section vertical with the bearing of trend of above-mentioned bottom girder observed satisfies following formula (4),
［ 2.8t { (A/t) for M=max
2-28000/F }
1/6, 4.8t ］ ... formula (3),
Here, the unit of thickness of slab size t is mm, and the unit of yield strength F is MPa, and the unit of the width dimensions A of upper flange is mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP112491/2010 | 2010-05-14 | ||
| JP2010112491 | 2010-05-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102249053A CN102249053A (en) | 2011-11-23 |
| CN102249053B true CN102249053B (en) | 2013-07-31 |
Family
ID=44914220
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101018244A Active CN102249053B (en) | 2010-05-14 | 2011-04-22 | Cargo container |
| CN2011201214550U Expired - Lifetime CN202244797U (en) | 2010-05-14 | 2011-04-22 | Cargo container |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201214550U Expired - Lifetime CN202244797U (en) | 2010-05-14 | 2011-04-22 | Cargo container |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4932969B2 (en) |
| KR (1) | KR101463676B1 (en) |
| CN (2) | CN102249053B (en) |
| TW (1) | TWI498263B (en) |
| WO (1) | WO2011142161A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011142161A1 (en) * | 2010-05-14 | 2011-11-17 | 新日本製鐵株式会社 | Cargo container |
| JP6125249B2 (en) * | 2013-01-31 | 2017-05-10 | 日野自動車株式会社 | Container conforming to ISO standard |
| JP7107652B2 (en) * | 2016-08-24 | 2022-07-27 | 三菱鉛筆株式会社 | writing instrument |
| JP6587331B1 (en) * | 2019-01-30 | 2019-10-09 | 愛宕自動車工業株式会社 | Open top container |
| CN111177865B (en) * | 2019-12-25 | 2023-11-28 | 中国船舶工业集团公司第七0八研究所 | Structure calculation system and design method for cabin body of ship upper cabin |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US875254A (en) * | 1906-04-05 | 1907-12-31 | Parish Mfg Company | Automobile frame member. |
| JPS58194185U (en) * | 1982-06-21 | 1983-12-23 | 日本フルハ−フ株式会社 | Marine container floor joist structure |
| CN2148241Y (en) * | 1993-01-20 | 1993-12-01 | 张立奇 | Improved light U-steel |
| JPH08310590A (en) * | 1995-05-16 | 1996-11-26 | Nippon Furuhaafu Kk | Upper flange structure of cross member |
| JP2004276936A (en) * | 2003-03-13 | 2004-10-07 | Nippon Trex Co Ltd | Container and its manufacturing method |
| JP4537682B2 (en) * | 2003-09-29 | 2010-09-01 | 新日本製鐵株式会社 | Thin steel plate with lip for lightweight steel construction |
| CN101585441B (en) * | 2008-05-23 | 2012-07-25 | 胜狮货柜技术研发（上海）有限公司 | Container underframe |
| WO2011142161A1 (en) * | 2010-05-14 | 2011-11-17 | 新日本製鐵株式会社 | Cargo container |
-
2011
- 2011-03-01 WO PCT/JP2011/054603 patent/WO2011142161A1/en active Application Filing
- 2011-03-01 JP JP2011536223A patent/JP4932969B2/en active Active
- 2011-03-01 KR KR1020127032380A patent/KR101463676B1/en active IP Right Grant
- 2011-03-03 TW TW100107108A patent/TWI498263B/en active
- 2011-04-22 CN CN2011101018244A patent/CN102249053B/en active Active
- 2011-04-22 CN CN2011201214550U patent/CN202244797U/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN102249053A (en) | 2011-11-23 |
| TWI498263B (en) | 2015-09-01 |
| JPWO2011142161A1 (en) | 2013-07-22 |
| CN202244797U (en) | 2012-05-30 |
| JP4932969B2 (en) | 2012-05-16 |
| KR101463676B1 (en) | 2014-11-19 |
| KR20130028754A (en) | 2013-03-19 |
| TW201144188A (en) | 2011-12-16 |
| WO2011142161A1 (en) | 2011-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102249053B (en) | Cargo container | |
| TWI726153B (en) | Emergency vehicle configured as a heavy goods vehicle | |
| US8550010B2 (en) | Bulk materials container | |
| CN107226291B (en) | Tank container | |
| US11702115B2 (en) | Reinforced railcar side stake | |
| RU2345918C1 (en) | Gondola wagon of aluminium alloys | |
| RU96080U1 (en) | RAILWAY PLATFORM FOR TRANSPORTATION OF LARGE-CONTAINER CONTAINERS | |
| CN201179895Y (en) | Self-discharging carriage with integral framework type bottom board and wagon with the carriage | |
| CN103625486B (en) | A kind of open-top car headwall and truck | |
| RU59005U1 (en) | RAILWAY PLATFORM | |
| RU2643322C2 (en) | Frame of flat wagon and flat wagon | |
| RU2273575C2 (en) | Body of rail gondola car with blind floor | |
| RU66291U1 (en) | FRAME FOR RAILWAY PLATFORM | |
| RU100037U1 (en) | Gondola car body with a deaf body | |
| RU2757613C1 (en) | Railway covered freight car for transportation of pallets with cargo | |
| UA77839C2 (en) | Frame of flatcar and flatcar with such frame | |
| RU84324U1 (en) | MULTIFUNCTIONAL RAILWAY PLATFORM | |
| RU50187U1 (en) | RAILWAY PLATFORM FOR TRANSPORT OF FORESTRY | |
| RU184885U1 (en) | REMOVABLE MODULE FOR VEHICLE | |
| UA127177U (en) | REMOVAL VEHICLE BODY | |
| RU119708U1 (en) | Gondola with a deaf body | |
| RU206555U1 (en) | Spine beam of a freight railway gondola car with unloading hatches | |
| CN212637485U (en) | Railway wagon with end wall | |
| CN209023648U (en) | It is suitble to the double-layered transporting device of prefabricated member transport | |
| AU2007100275B4 (en) | Bulk materials container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: NIPPON STEEL + SUMITOMO METAL CORPORATION Free format text: FORMER OWNER: SHIN NIPPON STEEL LTD. Effective date: 20130326 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130326 Address after: Tokyo, Japan Applicant after: Nippon Steel Corporation Address before: Tokyo, Japan Applicant before: Nippon Steel Corporation |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: Nippon Iron & Steel Corporation Address before: Tokyo, Japan Patentee before: Nippon Steel Corporation |