CA1138158A - Portable bridge structure - Google Patents
Portable bridge structureInfo
- Publication number
- CA1138158A CA1138158A CA000352878A CA352878A CA1138158A CA 1138158 A CA1138158 A CA 1138158A CA 000352878 A CA000352878 A CA 000352878A CA 352878 A CA352878 A CA 352878A CA 1138158 A CA1138158 A CA 1138158A
- Authority
- CA
- Canada
- Prior art keywords
- extending
- plates
- main
- members
- panel component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
"PORTABLE BRIDGE STRUCTURE"
ABSTRACT OF THE DISCLOSURE
A bridge is made in sections or panels of approx-imately ten feet in length, pin connected together on site to form the required center section length. An end panel component is then pin connected to each end of the assembl-ed center section so that the desired span can be construc-ted.
ABSTRACT OF THE DISCLOSURE
A bridge is made in sections or panels of approx-imately ten feet in length, pin connected together on site to form the required center section length. An end panel component is then pin connected to each end of the assembl-ed center section so that the desired span can be construc-ted.
Description
113~15t~
PORTABLE BRIDGE STRUCTURE
BACKGROUND OF THE INVENTION
This invention relates to new and useful improve-ments in portable bridge structures and is an improvement over our Canadian patent number 1,054,318 which issued May 15th, 1979.
In this particular patent, there is described a prefabricated bridge structure which is then transported to the desired site and installed across the stream, creek, ravine or the like, it being understood that such bridges are used frequently in the fields of civil engineering, oil exploration and the like. The bridge may either be temporary or semi-permanent, depending upon circumstances to permit transportation of engineering, oil exploration, mining equipment and the like.
Because of limitations of size, it will be appre-ciated that only bridges of certain lengths can be trans-ported in such a fashion. Furthermore, because the topogra-phical features are rarely the same width, each bridge has to be custom built at the plant and then transported to the site and installed.
SUMMARY OF THE INVENTION
The present invention overcomes disadvantages in-,.,,", ' : ' ~
- 1~3~1S8 herent with the structure of the above identified Canadian patent providing a bridge module of a convenient length, for example, ten feet, a plurality of which may readily be transported to the desired location whereupon they are pin connected together to form the desired center section length. End panel components are then pin connected one at each end of the center section to form the completed bridge structure which is then installed in a manner similar to that described in the above Canadian patent.
It will be apparent that the provision of such individual modules or main panel sections perrnits same to be readily manufactured at a plant or factory and then transported to the desired location whereupon the requi-site number may be utilized and furthermore it will also be apparent that when such a structure is temporary, it can readily be disassembled and transported to a further loca-tion for reuse.
It will also be apparent that complete flexi-bility as to length is provided whether or not central sup-porting piers are required or not.
In accordance with the invention there is there-fore provided a portable bridge structure comprising in combination a plurality of main panel components detachably connected together to form a bridge center section, and an end panel component detachably connected to each end of said center section, and means to detachably connect said ~ , - 1~3BlS~
components together to form the completed bridge structure, each of said main panel components including at least one pair of spaced and parallel, upper, longitudinally extend-ing main members, at least one pair of spaced and parallel lower, longitudinally extending main members, bracing means extending therebetween maintaining said upper and lower pairs of main members in vertical spaced apart relation-ship and a plurality of spaced and parallel transversely extending bridge decking support members spanning said upper longitudinally extending main members, said end panels components each including at least one pair of spaced and parallel upper longitudinally extending main members, a transversely extending anchoring and hitch member secured through said longitudinally extending rnain members of said end panel component adjacent the outer end thereof, verti-cal supports extending downwardly from adjacent the inner ends of said longitudinally extending main members of said end panel component, diagonal braces extending between the lower ends of said vertical supports to said longitudinal-ly extending main members of said end panel component in-termediate the ends thereof, a plurality of spaced and parallel transversely extending bridge decking support mem-bers spanning said upper longitudinally extending main mem-bers of said end panel component, and a further transverse-ly extending anchoring and hitch member extending between the lower ends of said vertical supports.
113BlS8 Another advantage of the invention is that the inherent strength is built in by the provision of spaced and parallel upper and lower spaced apart longitudinally extending main members with the requisite bracing between the upper and lower members and that the pin connections are between adjacent upper and lower members so that a rigid completed bridge structure is provided when the com-ponents are assembled together.
Another advantage of the present invention is to provide a device of the character herewithin described which is simple in construction, economical in manufacture and otherwise well suited to the purpose for which it is designed.
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113~1S8 With the foregoing in view, and other advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, the invention is herein described by reference to the accompany-ing drawings forming a part hereof, which includes a de-scription of the preferred typical embodiment of the prin-ciples of the present invention, in which:
DESCRIPTION OF THE DRAWINGS
Figure 1 is a side elevation on an assembled bridge span.
Figure 2 is a cross sectional view along the line
PORTABLE BRIDGE STRUCTURE
BACKGROUND OF THE INVENTION
This invention relates to new and useful improve-ments in portable bridge structures and is an improvement over our Canadian patent number 1,054,318 which issued May 15th, 1979.
In this particular patent, there is described a prefabricated bridge structure which is then transported to the desired site and installed across the stream, creek, ravine or the like, it being understood that such bridges are used frequently in the fields of civil engineering, oil exploration and the like. The bridge may either be temporary or semi-permanent, depending upon circumstances to permit transportation of engineering, oil exploration, mining equipment and the like.
Because of limitations of size, it will be appre-ciated that only bridges of certain lengths can be trans-ported in such a fashion. Furthermore, because the topogra-phical features are rarely the same width, each bridge has to be custom built at the plant and then transported to the site and installed.
SUMMARY OF THE INVENTION
The present invention overcomes disadvantages in-,.,,", ' : ' ~
- 1~3~1S8 herent with the structure of the above identified Canadian patent providing a bridge module of a convenient length, for example, ten feet, a plurality of which may readily be transported to the desired location whereupon they are pin connected together to form the desired center section length. End panel components are then pin connected one at each end of the center section to form the completed bridge structure which is then installed in a manner similar to that described in the above Canadian patent.
It will be apparent that the provision of such individual modules or main panel sections perrnits same to be readily manufactured at a plant or factory and then transported to the desired location whereupon the requi-site number may be utilized and furthermore it will also be apparent that when such a structure is temporary, it can readily be disassembled and transported to a further loca-tion for reuse.
It will also be apparent that complete flexi-bility as to length is provided whether or not central sup-porting piers are required or not.
In accordance with the invention there is there-fore provided a portable bridge structure comprising in combination a plurality of main panel components detachably connected together to form a bridge center section, and an end panel component detachably connected to each end of said center section, and means to detachably connect said ~ , - 1~3BlS~
components together to form the completed bridge structure, each of said main panel components including at least one pair of spaced and parallel, upper, longitudinally extend-ing main members, at least one pair of spaced and parallel lower, longitudinally extending main members, bracing means extending therebetween maintaining said upper and lower pairs of main members in vertical spaced apart relation-ship and a plurality of spaced and parallel transversely extending bridge decking support members spanning said upper longitudinally extending main members, said end panels components each including at least one pair of spaced and parallel upper longitudinally extending main members, a transversely extending anchoring and hitch member secured through said longitudinally extending rnain members of said end panel component adjacent the outer end thereof, verti-cal supports extending downwardly from adjacent the inner ends of said longitudinally extending main members of said end panel component, diagonal braces extending between the lower ends of said vertical supports to said longitudinal-ly extending main members of said end panel component in-termediate the ends thereof, a plurality of spaced and parallel transversely extending bridge decking support mem-bers spanning said upper longitudinally extending main mem-bers of said end panel component, and a further transverse-ly extending anchoring and hitch member extending between the lower ends of said vertical supports.
113BlS8 Another advantage of the invention is that the inherent strength is built in by the provision of spaced and parallel upper and lower spaced apart longitudinally extending main members with the requisite bracing between the upper and lower members and that the pin connections are between adjacent upper and lower members so that a rigid completed bridge structure is provided when the com-ponents are assembled together.
Another advantage of the present invention is to provide a device of the character herewithin described which is simple in construction, economical in manufacture and otherwise well suited to the purpose for which it is designed.
- ., :,: , " . ' ' ~ : ~ ` : .
113~1S8 With the foregoing in view, and other advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, the invention is herein described by reference to the accompany-ing drawings forming a part hereof, which includes a de-scription of the preferred typical embodiment of the prin-ciples of the present invention, in which:
DESCRIPTION OF THE DRAWINGS
Figure 1 is a side elevation on an assembled bridge span.
Figure 2 is a cross sectional view along the line
2-2 of Figure 1.
Figure 3 is an enlarged side elevation of one of the main panel components and appears on the sheet of draw-ings containing Figures 3, 4, 5 and 5A.
Figure 4 is an enlarged side elevation of one of the end panel components.
Figure 5 is an enlarged fragmentary side elevation showing the connections between adjacent components.
Figure 5A is a plan view of Figure 5.
Figure 6 is an enlarged cross sectional view along the line 6-6 of Figure 5A and appears on the sheet of draw-ings containing Figures 1 and 2.
Figure 7 is an enlarged cross sectional view along the line 7-7 of Figure 5A and appears on the sheet of draw-ings containing Figures 1 and 2.
~ ~ 113~1513 Figure 8 is a plan view of Figure 1 and appears on the sheet of drawings containing Figures 1 and 2.
In the drawings like characters of reference indi-:: ~
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cate corresponding parts in the different figures.
DETAILED DESCRIPTION
Proceeding therefore to describe the invention in detail, reference to the drawings will show that the bridge construction collectively designated 10 comprises a plurali-ty of main panel components collectively designated 11 toge-ther with end panel components collectively designated 12.
Each main panel component includes at least one but preferably two pairs of upper longitudinally extending main members and a similar number of pairs of lower longi-tudinally extending main members collectively designated 14 with vertical members 15 extending between corresponding upper and lower members and diagonal members 16 extending from adjacent the ends of the lower members 14 to adjacent the center of the corresponding upper members 13 as clearly shown in Figures 1, 2 and 3.
Each pair of upper and lower longitudinally ex-tending main members 13 and 14 are formed, in this embodi-ment, of I-beams with each pair 13 and 14 being in spaced apart relationship from one another and being individually identified by reference characters 13A and 13B for the upper members and 14A and 14B for the lower members.
Furthermore, the vertical and diagonal support members 15 and 16 are also, in this embodiment, constructed 1~3Bl~
of I-beams.
Adjacent each end of the lower longitudinally ex-tending main members 14, there is provided a transverse dia-phragm or member 17 also, in this embodiment, in the form of an I-beam, connected as by welding clear across the longitu-dinally extending lower members and maintaining same in the desired spaced and parallel relationship.
Similar members 18 extend between adjacent the ends of the upper main members 13 and once again I-beams are pre-ferred as shown in this embodiment.
This makes a rigid box-like frame structure for each main panel section and a plurality of spaced and paral-lel bridge decking support members 19 are secured as by weld-ing across the upper webs 20 of the upper main members 13 with the ends of these transverse members 19 extending be-yond the outer members 13A with an upwardly extending side rail component collectively designated 21, being secured to the ends or extremities of the members 19 as by welding or the like. The side rail members include upper and lower spaced and parallel longitudinally extending members 22 and diagonal brace members 23 therebetween as clearly shown in Figure 1.
The end panel components 12 each comprise longi-tudinally extending upper members collectively designated .: . , 113~15bl 24 and preferably consist of two pairs with each pair in-cluding an outer member 24A and an inner member 24B similar in dimension and location to the members 13 of the main pa-nel components.
Vertical support members 25 extend downwardly from adjacent the inner ends of the members 24 and transverse dia-phragms 26 extend between the upper members 24 and are weld-ed thereto. Once again, all of the structure described is preferably in the form of I-beams as clearly shown.
Diagonal braces 27 also preferably of an I-beam configuration extend between the lower ends of the vertical supports 25 and the main members 24 intermediate the ends of the main members as clearly shown in Figure 6.
The outer or distal ends 28 of the members 24 are flanged upwardly and closed in as shown in Figure 6 and a heavy duty tube 29 extends through all of the upper members 24 and is welded thereto with the ends of the tube extending beyond the outermost members 24A and being closed by means of a plate 30 welded thereto.
A similar tube 31 extends between and through the lower ends of the vertical supports 25 and is welded thereto and this again extends beyond the outer vertical members 25 and terminates in a plate 32, once again welded to the ends in a manner similar to plates 30.
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These tubes 29 and 31 act as anchoring members for the bridge structure when installed and in position in a manner similar to that described in Canadian patent number 1,054,318 and also as hitching points for manipula-ting the assembled bridge into position across the topogra-phicalfeature being spanned.
Once again spaced and parallel transversely ex-tending bridge deck support members l9A are provided across the upper webs 24A of the upper main members 24.
Means are provided to detachably connect the main panel components 11, to one another and to connect the end panel components 24, to the outer ends of the center section formed by the plurality of main panel components 11.
Figures 4 and 5 show details and each main panel component 11 is provided on one end thereof with a pair of longitudinally extending spaced and parallel plates 33 which are secured to the central vertical webs 34 of the longitu-dinally extending members 13 and 14 and are maintained in their spaced apart relationship by spacers 35 welded one upon each side of the web 34 with the plates 33 being in turn weld-ed in position upon the spacers as shown in Figure 6.
The other end of the longitudinally extending main members 13 and 14 are provided with a single plate 36 extending from the ends of the members and being welded bet-~ ~:
113~1S8 ween the upper and lower flanges of the members with the web being cut away to receive this plate as clearly shown in Figure 7 and this plate is adapted to engage between the opposing pair of plates as clearly illustrated in Figure 4.
The extending portions of the plates 33 and 36 are apertured to receive a detachable connecting pin 37 detach-ably held in position by means of dowel or cotter pins 38 extending through apertures formed adjacent each end of the connecting pins 37. Alternatively, the pins may be provided with a head (not illustrated) on one end and a dowel or cot-ter pin through the other end.
This connects adjacent main panel components toge-ther as shown in Figure 4 and 5 with the upper pins being in compression and the lower pins in tension once the bridge is in position.
The plurality of main panel components 11 are con-nected together to provide the requisite center section of the bridge span and end components 12 are then pin connected to the ends of the center section by means similar to those hereinbefore described for the connections between the main panel components. This completes the finished bridge struc-ture which is supported upon the necessary supports (not il-lustrated) provided on the banks or sides of the topographi-cal feature being spanned.
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However, because of the alternate single and double plate connectors 36 and 33 provided on the main components 11, it will be appreciated that the end components 12 at each end have to be provided with corresponding single or double plates to match the ends of the center section. For example, if the left hand end of the center section (with relation to the drawings) terminates in a single plate then double plates have to be provided on the left hand end sec-tion which means that a single plate connection has to be provided on the end section at the right hand end (once again with reference to the drawings) engageable within the pair of plates on the right hand end of the center section.
In Figure 6, a single plate 36A is provided at the inner end of the upper longitudinally extending main members 24 and also extending inwardly from the lower ends of the vertical members 25 with pins similar to pins 37 be-ing provided to form the connection between the end compo-nents 24 and the ends of the assembled center section.
When the requisite number of main panel components 11 have been connected together, and the end panel components 12 have been added one at each end of the center section thus formed, the bridge span may be installed across the area being spanned by utilizing the hitch tubes 29 and 31 whereupon the decking collectively designated 38 may be in-, :;
, 113E~15~
stalled.
In the present embodiment, wooden wheel guards 39 are installed against the side rails 21 running the full length of the finished bridge span and a first wooden deck-ing 40 is layered across and secured to the decking support members 19 and l9A.
Wheel engaging decking strips 41 are then secured to the main decking 40, upon each side thereof as clearly illustrated in Figure 2.
Disassembly is prov~ided by removing the deck 38, removing the bridge span from the area being spanned and then disassembling same into the individual main panel sec-tions and end panel sections for transportation to another location.
It will be appreciated that the desired span is easily made up of the ten foot lengths depending upon the finished length required and that each individual section is easily and readily handled by a relatively lightweight crane.
Since various modifcations can be made in our in-vention as hereinabove described, and many apparently wide-ly different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the ac-, ~ . .
, . .
.
1~3~
companying specification shall be interpreted as illustra-tive only and not in a limiting sense.
. . : . ~ , : . .
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Figure 3 is an enlarged side elevation of one of the main panel components and appears on the sheet of draw-ings containing Figures 3, 4, 5 and 5A.
Figure 4 is an enlarged side elevation of one of the end panel components.
Figure 5 is an enlarged fragmentary side elevation showing the connections between adjacent components.
Figure 5A is a plan view of Figure 5.
Figure 6 is an enlarged cross sectional view along the line 6-6 of Figure 5A and appears on the sheet of draw-ings containing Figures 1 and 2.
Figure 7 is an enlarged cross sectional view along the line 7-7 of Figure 5A and appears on the sheet of draw-ings containing Figures 1 and 2.
~ ~ 113~1513 Figure 8 is a plan view of Figure 1 and appears on the sheet of drawings containing Figures 1 and 2.
In the drawings like characters of reference indi-:: ~
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~ ~ .
.. . : .
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113~315~3 .
cate corresponding parts in the different figures.
DETAILED DESCRIPTION
Proceeding therefore to describe the invention in detail, reference to the drawings will show that the bridge construction collectively designated 10 comprises a plurali-ty of main panel components collectively designated 11 toge-ther with end panel components collectively designated 12.
Each main panel component includes at least one but preferably two pairs of upper longitudinally extending main members and a similar number of pairs of lower longi-tudinally extending main members collectively designated 14 with vertical members 15 extending between corresponding upper and lower members and diagonal members 16 extending from adjacent the ends of the lower members 14 to adjacent the center of the corresponding upper members 13 as clearly shown in Figures 1, 2 and 3.
Each pair of upper and lower longitudinally ex-tending main members 13 and 14 are formed, in this embodi-ment, of I-beams with each pair 13 and 14 being in spaced apart relationship from one another and being individually identified by reference characters 13A and 13B for the upper members and 14A and 14B for the lower members.
Furthermore, the vertical and diagonal support members 15 and 16 are also, in this embodiment, constructed 1~3Bl~
of I-beams.
Adjacent each end of the lower longitudinally ex-tending main members 14, there is provided a transverse dia-phragm or member 17 also, in this embodiment, in the form of an I-beam, connected as by welding clear across the longitu-dinally extending lower members and maintaining same in the desired spaced and parallel relationship.
Similar members 18 extend between adjacent the ends of the upper main members 13 and once again I-beams are pre-ferred as shown in this embodiment.
This makes a rigid box-like frame structure for each main panel section and a plurality of spaced and paral-lel bridge decking support members 19 are secured as by weld-ing across the upper webs 20 of the upper main members 13 with the ends of these transverse members 19 extending be-yond the outer members 13A with an upwardly extending side rail component collectively designated 21, being secured to the ends or extremities of the members 19 as by welding or the like. The side rail members include upper and lower spaced and parallel longitudinally extending members 22 and diagonal brace members 23 therebetween as clearly shown in Figure 1.
The end panel components 12 each comprise longi-tudinally extending upper members collectively designated .: . , 113~15bl 24 and preferably consist of two pairs with each pair in-cluding an outer member 24A and an inner member 24B similar in dimension and location to the members 13 of the main pa-nel components.
Vertical support members 25 extend downwardly from adjacent the inner ends of the members 24 and transverse dia-phragms 26 extend between the upper members 24 and are weld-ed thereto. Once again, all of the structure described is preferably in the form of I-beams as clearly shown.
Diagonal braces 27 also preferably of an I-beam configuration extend between the lower ends of the vertical supports 25 and the main members 24 intermediate the ends of the main members as clearly shown in Figure 6.
The outer or distal ends 28 of the members 24 are flanged upwardly and closed in as shown in Figure 6 and a heavy duty tube 29 extends through all of the upper members 24 and is welded thereto with the ends of the tube extending beyond the outermost members 24A and being closed by means of a plate 30 welded thereto.
A similar tube 31 extends between and through the lower ends of the vertical supports 25 and is welded thereto and this again extends beyond the outer vertical members 25 and terminates in a plate 32, once again welded to the ends in a manner similar to plates 30.
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These tubes 29 and 31 act as anchoring members for the bridge structure when installed and in position in a manner similar to that described in Canadian patent number 1,054,318 and also as hitching points for manipula-ting the assembled bridge into position across the topogra-phicalfeature being spanned.
Once again spaced and parallel transversely ex-tending bridge deck support members l9A are provided across the upper webs 24A of the upper main members 24.
Means are provided to detachably connect the main panel components 11, to one another and to connect the end panel components 24, to the outer ends of the center section formed by the plurality of main panel components 11.
Figures 4 and 5 show details and each main panel component 11 is provided on one end thereof with a pair of longitudinally extending spaced and parallel plates 33 which are secured to the central vertical webs 34 of the longitu-dinally extending members 13 and 14 and are maintained in their spaced apart relationship by spacers 35 welded one upon each side of the web 34 with the plates 33 being in turn weld-ed in position upon the spacers as shown in Figure 6.
The other end of the longitudinally extending main members 13 and 14 are provided with a single plate 36 extending from the ends of the members and being welded bet-~ ~:
113~1S8 ween the upper and lower flanges of the members with the web being cut away to receive this plate as clearly shown in Figure 7 and this plate is adapted to engage between the opposing pair of plates as clearly illustrated in Figure 4.
The extending portions of the plates 33 and 36 are apertured to receive a detachable connecting pin 37 detach-ably held in position by means of dowel or cotter pins 38 extending through apertures formed adjacent each end of the connecting pins 37. Alternatively, the pins may be provided with a head (not illustrated) on one end and a dowel or cot-ter pin through the other end.
This connects adjacent main panel components toge-ther as shown in Figure 4 and 5 with the upper pins being in compression and the lower pins in tension once the bridge is in position.
The plurality of main panel components 11 are con-nected together to provide the requisite center section of the bridge span and end components 12 are then pin connected to the ends of the center section by means similar to those hereinbefore described for the connections between the main panel components. This completes the finished bridge struc-ture which is supported upon the necessary supports (not il-lustrated) provided on the banks or sides of the topographi-cal feature being spanned.
:
~. ~
However, because of the alternate single and double plate connectors 36 and 33 provided on the main components 11, it will be appreciated that the end components 12 at each end have to be provided with corresponding single or double plates to match the ends of the center section. For example, if the left hand end of the center section (with relation to the drawings) terminates in a single plate then double plates have to be provided on the left hand end sec-tion which means that a single plate connection has to be provided on the end section at the right hand end (once again with reference to the drawings) engageable within the pair of plates on the right hand end of the center section.
In Figure 6, a single plate 36A is provided at the inner end of the upper longitudinally extending main members 24 and also extending inwardly from the lower ends of the vertical members 25 with pins similar to pins 37 be-ing provided to form the connection between the end compo-nents 24 and the ends of the assembled center section.
When the requisite number of main panel components 11 have been connected together, and the end panel components 12 have been added one at each end of the center section thus formed, the bridge span may be installed across the area being spanned by utilizing the hitch tubes 29 and 31 whereupon the decking collectively designated 38 may be in-, :;
, 113E~15~
stalled.
In the present embodiment, wooden wheel guards 39 are installed against the side rails 21 running the full length of the finished bridge span and a first wooden deck-ing 40 is layered across and secured to the decking support members 19 and l9A.
Wheel engaging decking strips 41 are then secured to the main decking 40, upon each side thereof as clearly illustrated in Figure 2.
Disassembly is prov~ided by removing the deck 38, removing the bridge span from the area being spanned and then disassembling same into the individual main panel sec-tions and end panel sections for transportation to another location.
It will be appreciated that the desired span is easily made up of the ten foot lengths depending upon the finished length required and that each individual section is easily and readily handled by a relatively lightweight crane.
Since various modifcations can be made in our in-vention as hereinabove described, and many apparently wide-ly different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the ac-, ~ . .
, . .
.
1~3~
companying specification shall be interpreted as illustra-tive only and not in a limiting sense.
. . : . ~ , : . .
. ~
Claims
WHAT WE CLAIM AS OUR INVENTION IS:
(1) A portable bridge structure comprising in combination a plurality of main panel components detachably connected together to form a bridge center section, and an end panel component detachably connected at each end of said center section, and means to detachably connect said components together to form the completed bridge structure, each of said main panel components including at least one pair of spaced and parallel, upper, longitudinally extend-ing main members, at least one pair of spaced and parallel lower, longitudinally extending main members, bracing means extending therebetween maintaining said upper and lower pairs of main members in vertical spaced apart relationship and a plurality of spaced and parallel transversely extend-ing bridge decking support members spanning said upper longitudinally extending main members, said end panel com-ponents each including at least one pair of spaced and parallel upper longitudinally extending main members, a transversely extending anchoring and hitch member secured through said longitudinally extending main members of said end panel component adjacent the outer end thereof, verti-cal supports extending downwardly from adjacent the inner ends of said longitudinally extending main members of said end panel component, diagonal braces extending between the lower ends of said vertical supports to said longitudinally extending main members of said end panel component inter-mediate the ends thereof, a plurality of spaced and parallel transversely extending bridge decking support members span-ning said upper longitudinally extending main members of said end panel component, and a further transversely extend-ing anchoring and hitch member extending between the lower ends of said vertical supports.
(2) The invention according to Claim 1 which in-cludes two pairs of upper and lower longitudinally extend-ing main members.
(3) The invention according to Claim 1 in which said end panel components include two pairs of upper longi-tudinally extending main members.
(4) The invention according to Claim 2 in which said end panel components include two pairs of upper longi-tudinally extending main members.
(5) The invention according to Claim 1 in which said means to detachably connect said components together includes a pair of spaced and parallel apertured plates ex-tending from one end of each of said upper and lower longi-tudinally extending main members of each of said main panel components, and a single centrally located apertured plate extending from the other ends of said upper and lower longi-tudinally extending main members, said single plates of one main panel component engaging between the pair of plates of the next adjacent main panel component and a connecting pin detachably engaging between the single and double engaging plates.
(6) The invention according to Claim 2 in which said means to detachably connect said components together includes a pair of spaced and parallel apertured plates ex-tending from one end of each of said upper and lower longi-tudinally extending main members of each of said main panel components, and a single centrally located apertured plate extending from the other ends of said upper and lower longi-tudinally extending main members, said single plates of one main panel component engaging between the pair of plates of the next adjacent main panel component and a connecting pin detachably engaging between the single and double engaging plates.
(7) The invention according to Claim 3 in which said means to detachably connect said components together includes a pair of spaced and parallel apertured plates ex-tending from one end of each of said upper and lower longi-tudinally extending main members of each of said main panel components, and a single centrally located apertured plate extending from the other ends of said upper and lower longi-tudinally extending main members, said single plates of one main panel component engaging between the pair of plates of the next adjacent main panel component and a connecting pin detachably engaging between the single and double engaging plates.
(8) The invention according to Claim 4 in which said means to detachably connect said components together includes a pair of spaced and parallel apertured plates ex-tending from one end of each of said upper and lower longi-tudinally extending main members of each of said main panel components, and a single centrally located apertured plate extending from the other ends of said upper and lower longi-tudinally extending main members, said single plates of one main panel component engaging between the pair of plates of the next adjacent main panel component and a connecting pin detachably engaging between the single and double engaging plates.
(9) The invention according to Claims 1, 2 or 3 in which said means to detachably connect said end panel components to the adjacent ends of said main panel compon-ents include apertured plate means extending from the inner ends of said upper longitudinally main members of said end panel component engaging with the plates of the upper longi-tudinally extending main member of the next adjacent main panel component and detachable pin means extending through said last mentioned apertured plates, and further apertured plate means extending from the lower ends of said vertical supports engaging with the plates of the lower longitudinal-ly extending main members of the next adjacent main panel component, and detachable pin means extending through said last mentioned apertured plates.
(10) The invention according to Claims 4, 5 or 6 in which said means to detachably connect said end panel components to the adjacent ends of said main panel compon-ents include apertured plate means extending from the inner ends of said upper longitudinally main members of said end panel component engaging with the plates of the upper longi-tudinally extending main member of the next adjacent main panel component and detachable pin means extending through said last mentioned apertured plates, and further apertured plate means extending from the lower ends of said vertical supports engaging with the plates of the lower longitudinal-ly extending main members of the next adjacent main panel component, and detachable pin means extending through said last mentioned apertured plates.
(11) The invention according to Claims 7 or 8 in which said means to detachably connect said end panel components to the adjacent ends of said main panel compon-ents include apertured plate means extending from the inner ends of said upper longitudinally main members of said end panel component engaging with the plates of the upper longi-tudinally extending main member of the next adjacent main panel component and detachable pin means extending through said last mentioned apertured plates, and further apertured plate means extending from the lower ends of said vertical supports engaging with the plates of the lower longitudinal-ly extending main members of the next adjacent main panel component, and detachable pin means extending through said last mentioned apertured plates.
(1) A portable bridge structure comprising in combination a plurality of main panel components detachably connected together to form a bridge center section, and an end panel component detachably connected at each end of said center section, and means to detachably connect said components together to form the completed bridge structure, each of said main panel components including at least one pair of spaced and parallel, upper, longitudinally extend-ing main members, at least one pair of spaced and parallel lower, longitudinally extending main members, bracing means extending therebetween maintaining said upper and lower pairs of main members in vertical spaced apart relationship and a plurality of spaced and parallel transversely extend-ing bridge decking support members spanning said upper longitudinally extending main members, said end panel com-ponents each including at least one pair of spaced and parallel upper longitudinally extending main members, a transversely extending anchoring and hitch member secured through said longitudinally extending main members of said end panel component adjacent the outer end thereof, verti-cal supports extending downwardly from adjacent the inner ends of said longitudinally extending main members of said end panel component, diagonal braces extending between the lower ends of said vertical supports to said longitudinally extending main members of said end panel component inter-mediate the ends thereof, a plurality of spaced and parallel transversely extending bridge decking support members span-ning said upper longitudinally extending main members of said end panel component, and a further transversely extend-ing anchoring and hitch member extending between the lower ends of said vertical supports.
(2) The invention according to Claim 1 which in-cludes two pairs of upper and lower longitudinally extend-ing main members.
(3) The invention according to Claim 1 in which said end panel components include two pairs of upper longi-tudinally extending main members.
(4) The invention according to Claim 2 in which said end panel components include two pairs of upper longi-tudinally extending main members.
(5) The invention according to Claim 1 in which said means to detachably connect said components together includes a pair of spaced and parallel apertured plates ex-tending from one end of each of said upper and lower longi-tudinally extending main members of each of said main panel components, and a single centrally located apertured plate extending from the other ends of said upper and lower longi-tudinally extending main members, said single plates of one main panel component engaging between the pair of plates of the next adjacent main panel component and a connecting pin detachably engaging between the single and double engaging plates.
(6) The invention according to Claim 2 in which said means to detachably connect said components together includes a pair of spaced and parallel apertured plates ex-tending from one end of each of said upper and lower longi-tudinally extending main members of each of said main panel components, and a single centrally located apertured plate extending from the other ends of said upper and lower longi-tudinally extending main members, said single plates of one main panel component engaging between the pair of plates of the next adjacent main panel component and a connecting pin detachably engaging between the single and double engaging plates.
(7) The invention according to Claim 3 in which said means to detachably connect said components together includes a pair of spaced and parallel apertured plates ex-tending from one end of each of said upper and lower longi-tudinally extending main members of each of said main panel components, and a single centrally located apertured plate extending from the other ends of said upper and lower longi-tudinally extending main members, said single plates of one main panel component engaging between the pair of plates of the next adjacent main panel component and a connecting pin detachably engaging between the single and double engaging plates.
(8) The invention according to Claim 4 in which said means to detachably connect said components together includes a pair of spaced and parallel apertured plates ex-tending from one end of each of said upper and lower longi-tudinally extending main members of each of said main panel components, and a single centrally located apertured plate extending from the other ends of said upper and lower longi-tudinally extending main members, said single plates of one main panel component engaging between the pair of plates of the next adjacent main panel component and a connecting pin detachably engaging between the single and double engaging plates.
(9) The invention according to Claims 1, 2 or 3 in which said means to detachably connect said end panel components to the adjacent ends of said main panel compon-ents include apertured plate means extending from the inner ends of said upper longitudinally main members of said end panel component engaging with the plates of the upper longi-tudinally extending main member of the next adjacent main panel component and detachable pin means extending through said last mentioned apertured plates, and further apertured plate means extending from the lower ends of said vertical supports engaging with the plates of the lower longitudinal-ly extending main members of the next adjacent main panel component, and detachable pin means extending through said last mentioned apertured plates.
(10) The invention according to Claims 4, 5 or 6 in which said means to detachably connect said end panel components to the adjacent ends of said main panel compon-ents include apertured plate means extending from the inner ends of said upper longitudinally main members of said end panel component engaging with the plates of the upper longi-tudinally extending main member of the next adjacent main panel component and detachable pin means extending through said last mentioned apertured plates, and further apertured plate means extending from the lower ends of said vertical supports engaging with the plates of the lower longitudinal-ly extending main members of the next adjacent main panel component, and detachable pin means extending through said last mentioned apertured plates.
(11) The invention according to Claims 7 or 8 in which said means to detachably connect said end panel components to the adjacent ends of said main panel compon-ents include apertured plate means extending from the inner ends of said upper longitudinally main members of said end panel component engaging with the plates of the upper longi-tudinally extending main member of the next adjacent main panel component and detachable pin means extending through said last mentioned apertured plates, and further apertured plate means extending from the lower ends of said vertical supports engaging with the plates of the lower longitudinal-ly extending main members of the next adjacent main panel component, and detachable pin means extending through said last mentioned apertured plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000352878A CA1138158A (en) | 1980-05-28 | 1980-05-28 | Portable bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000352878A CA1138158A (en) | 1980-05-28 | 1980-05-28 | Portable bridge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1138158A true CA1138158A (en) | 1982-12-28 |
Family
ID=4117047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000352878A Expired CA1138158A (en) | 1980-05-28 | 1980-05-28 | Portable bridge structure |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1138158A (en) |
-
1980
- 1980-05-28 CA CA000352878A patent/CA1138158A/en not_active Expired
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