CN100351476C - Metal roof truss - Google Patents
Metal roof truss Download PDFInfo
- Publication number
- CN100351476C CN100351476C CNB2005100093628A CN200510009362A CN100351476C CN 100351476 C CN100351476 C CN 100351476C CN B2005100093628 A CNB2005100093628 A CN B2005100093628A CN 200510009362 A CN200510009362 A CN 200510009362A CN 100351476 C CN100351476 C CN 100351476C
- Authority
- CN
- China
- Prior art keywords
- web
- chord
- roof truss
- edge
- wing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
- B21D47/04—Making rigid structural elements or units, e.g. honeycomb structures composite sheet metal profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
- E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/11—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with non-parallel upper and lower edges, e.g. roof trusses
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
- E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
- E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0473—U- or C-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The present invention relates generally to a metal roof truss (10) comprising a lower chord member (12) at opposing ends being connected to a respective of a pair of upper chord members (14) and (16). The metal roof truss (10) also comprises a plurality of elongate stiffening webs such as (18) and (20) which at opposing ends are connected to the lower chord member (12) and one of the upper chord members (14) respectively. The stiffening webs such as (18) and (20) are cold roll formed from strip steel into a channel section profile including a web (26) and an opposing pair of flanges such as (28) and (30). According to one aspect of the invention opposing ends of the stiffening webs such as (18) and (20) are configured wherein opposing flanges such as (28) and (30) of their respective stiffening web (18) or (20) engage the lower chord (12) and one of the upper chords such as (14). In another aspect there is provided a method of forming elongate stiffening webs such as (18) and (20) and/or chord members such as (12) to (16). This involves preforming one or more pairs of opposing notches such as (36) and (38) in elongate strip steel (40). The pair of opposing notches (36) and (38) provide a frangible connection at the juncture of adjacent stiffening webs such as (18) and (20). Thus, the various components of the metal roof truss can be fabricated as a ''string'' and separated prior to erection of the metal roof truss (10).
Description
The application is one and divides an application that the application number of corresponding female case is 01821323.5, and the applying date is December 20 calendar year 2001, and denomination of invention is " metal roof truss ", and the application people is Bhp Steel Ltd..
Technical field
The present invention relates to a kind of metal roof truss, relate in particular to but be not only limited to, the method for member that forms metal roof truss and comprise the metal roof truss of elongated reinforcement web member and chord member.
Background technology
Truss is generally used in the roof structure.These truss generally include by strengthening the interconnective chord member of web member.These members are formed from steel, and are generally channel shaped configuration, have a pair of from the extended edge of a wing of web.Usually, when using this kind structure, the web of chord member is with the web setting of " back-to-back " structure against the edge of a wing.In addition, for the ease of transportation and installing, each member uses the securing member scene to assemble so that each member is interconnected usually.
Summary of the invention
According to an aspect of the present invention, provide a kind of metal roof truss, having comprised:
One lower chord is connected in the respective end of a pair of upper chord in place, relative end; And
A plurality of compression web members are connected to respectively on one of lower chord and upper chord in relative place, end;
Compression web member with channel-section profile has the web and a pair of relative edge of a wing with each chord member, each edge of a wing has the free edge part that bends inwards of extending on web, described compression web member and chord member interconnection, make truss be plane substantially, and compression web member chord pole face is orientated to equidirectional;
Wherein each compression web member is made the part web at its opposed end place structure and is stretched out outside its edge of a wing, compression web member is by reclining on the corresponding web that is installed on chord member and be connected with corresponding chord member stretching out the web part, and the edge surface on the edge of a wing adjacent with stretching out the web part is resisted against the corresponding edge of a wing of the chord member that is connected, and extends through with at least one and respectively to stretch out web part and described recline the with it securing member fix in position of web part of the chord member installed of web part that stretches out.
The edge of a wing of having found compression web member is with the joint of last or lower chord or contact the structural performance that can improve roof truss.
Preferably the opposite ends at least one edge of a wing of lower chord is cut, or is shaped in advance with other form, to engage or to contact each upper chord.
Chord member and/or compression web member preferably have asymmetrical section configuration, and another edge of a wing of the aspect ratio on one of them edge of a wing is short.In a form, a pair of chord member and/or a pair of compression web member are designed to interlocked with one another, to form the section of sealing.In one embodiment, the web of chord member and/or compression web member and/or the edge of a wing comprise the ribs that extends longitudinally.
Chord member and compression web member preferably include the hole that is pre-formed the mutual alignment that is used to install roof truss.Chord member and compression web member also preferably are installed together by one or more securing members, and this securing member cooperates with the hole that is pre-formed and align.
This preferably connects by top board in the top to upper chord.This top board is preferably elongated shape, and at least one opposing longitudinal edges contains the reinforcement edge of a wing.In one embodiment, strengthen the edge of a wing and comprise the flange rectangular, and this top board is fixed on the chord member by a plurality of top fasteners with top board.
According to a second aspect of the invention, provide a kind of method that forms a plurality of elongated trussmember of metal roof truss, this trussmember is the reinforcement web member and/or the chord member of truss, and described method comprises the following steps:
On the long and thin metal band, form one or more pairs of groove opposite;
The metal tape that roll forming is elongated, the trussmember that has the channel-section configuration with formation, this trussmember is continuous, and by this groove opposite is formed junction surface between the adjacent trussmember, and forms make the connection that adjacent trussmember can separate after roll forming.
Each flute profile trussmember preferably includes the web and a pair of relative edge of a wing, and separate by the respective slot of a pair of groove opposite on the edge of a wing of each adjacent trussmember, thereby adjacent trussmember is only interconnected by their web.Frangibility connects the web joint that generally is positioned at adjacent web member and/or chord member.And described separation is preferably only by manual operations, and do not need cutting or separating tool.
The step that forms groove preferably includes metal tape mold pressing or punching press.
This method preferably also is included in the opposite ends of strengthening web member and/or the chord member fastener hole that is shaped in advance.And this fastener hole is preferably in punching in advance in the web member with channel-section configuration.
The method according to this invention, preferably, described computer processor unit is arranged to and printing device operation communication, and described method also comprises the following steps:
In treating apparatus, import design information, in treating apparatus, calculate the configuration of metal roof truss and details is installed;
Details (detail) will be installed to be printed on the member of metal roof truss at least.
The installation details preferably is printed on the member of the roof truss of using this details.This installation details also preferably is printed on the elongated reinforcement web member and/or chord member of metal roof truss.
The printing that details is installed preferably is included in carries out inkjet printing on the metal tape, this metal tape can be rolled into the member of metal roof truss afterwards.
The input of design information preferably comprises input size and the payload data relevant with building structure, sets up metal roof truss in this building structure.
According to a third aspect of the invention we, provide a kind of method that forms metal roof truss, described method comprises the following steps:
Design information input treating apparatus wherein is provided, to calculate the configuration of roof truss, a kind of device that is used for slotting on metal tape also is provided, and this metal tape is in order to the member of rolling formation metal roof truss, and described grooving apparatus operationally is communicated with treating apparatus;
Utilize grooving apparatus on metal tape, to slot, wherein on metal tape, form relative each groove, described each groove opposite is formed broken connection between the adjacent members of metal roof truss, and its shape is decided according to the configuration of roof truss.
According to a forth aspect of the invention, provide a kind of equipment that forms metal roof truss, this equipment comprises:
Design information input treating apparatus wherein is to calculate the configuration of roof truss;
The device that is used on metal tape, slotting, member with the rolling formation metal roof truss of metal tape, described grooving apparatus operationally is communicated with treating apparatus, on metal tape, form relative each to groove, described each groove opposite is formed broken connection between the adjacent members of metal roof truss, and its shape is decided according to the configuration of roof truss.
Adjacent member generally comprises one or more elongated reinforcement web member and/or chord members.
This equipment preferably also comprises the roll forming device that is operatively connected with grooving apparatus, the metal tape of slotting in advance can be rolled into the channel-section configuration thus.
According to the fifth aspect present invention aspect, the invention provides a plurality of elongated trussmembers, these members are formed by continuous metal tape, and head and the tail connect mutually, joint between the adjacent trussmember is determined by a pair of groove opposite, and the connection of formation permission adjacent members separation, and wherein the shape of each groove and position are determined by the configuration of truss, thereby after being that adjacent trussmember is separated in the junction, the size and dimension of each member is suitable for the assembling of truss.
Description of drawings
Feature only with mode for example, is described the most preferred embodiment and other various aspects of metal roof truss of the present invention in detail below with reference to accompanying drawing for a better understanding of the present invention, wherein:
Fig. 1 is the phantom drawing of metal roof truss;
Fig. 2 is the decomposition diagram of metal roof truss among Fig. 1;
Fig. 3 A, 3B show forward sight and the backsight detail drawing that the web member of roof truss among Fig. 1 is connected with chord member;
Fig. 4 A, 4B show the forward sight and the backsight detail drawing of the abut connection of metal roof truss among Fig. 1;
Fig. 5 is before roll forming, the phantom drawing of the steel band of fluting in advance of roof truss member;
Fig. 6 is the top board phantom drawing of metal roof truss among Fig. 1; With
Fig. 7 is according to embodiments of the invention, forms the block diagram of the general treatment step of metal roof truss.
The specific embodiment
As shown in Figure 1, metal roof truss 10 comprises lower chord 12, and its opposite two ends connect a pair of upper chord 14 and 16 respectively.This metal roof truss 10 also comprises a plurality of elongated reinforcement web members 18 and 20, and its opposite end connects lower chord 12 and one of them upper chord 14 respectively.In this embodiment, strengthening web member 18 is compression web member, is the tension web member and strengthen web member 20.The shape of the metal roof truss 10 in the present embodiment is roughly triangle, and wherein upper chord 14 is connected at bindiny mechanism 22 places, top with 16 adjacent end portion.Upper chord 14 is connected at abut bindiny mechanism 24 places separately with the opposite ends of lower chord 12 with 16 opposite ends.But should be appreciated that the configuration of metal roof truss can be different from configuration described above without departing from the scope of the invention, for example lower chord can comprise the chord member more than, and same, this may extend into a plurality of chord members place to upper chord.
As shown in Figure 2, lower and upper chord member 12-16 is the channel-section configuration by the steel band cold roll forming with strengthening web member 18 and 20, and it comprises web 26 and a pair of relative edge of a wing 28 and 30.This edge of a wing 28 and 30 comprises the free edge portion that bends inwards each other.Lower and upper chord member 12-16 is that the quite light-duty steel band that has of 0.75mm is made by thickness generally with strengthening web member 18 and 20.
According to an aspect of the present invention, strengthen web member 18 and the following formation of 20 opposed end: each strengthens the relative edge of a wing 28 and 30 of web member 18 or 20, engages with lower chord 12 and one of them upper chord 14 or 16.Can be clear that very much from Fig. 3, according to an embodiment, as the edge of a wing of the reinforcement web member 18 of compression web member as 28 with 30 joint or contact the structural performance of having strengthened roof truss 10.Lower and upper chord member 12-16 is arranged in the same level with strengthening web member 18 and 20, strengthens each web 26 of web member 18, flushes each other with chord member 12.Importantly, be cut in its end with 30 as the edge of a wing 28 of the reinforcement web member 18 of compression web member or form respectively and lower and upper chord member 12 and 14 shapes that engage or be connected with other form in advance." degree of depth " of cutting the edge of a wing 28 and 30 determines with respect to the direction of chord member 14,16 and 12 respectively by strengthening web member.
Strengthen web member 18 and 20 with down or upper chord 12-16 comprise the hole 32 and 34 of shaping in advance, align mutually to be used to install roof truss 10 in this hole.Spiral fastener with quite coarse screw thread can cooperate with the hole 32 or 34 of aliging, and is respectively installed on the lower chord 12 will strengthen web member.The hole 32 and 34 of alignment is generally being accomplished fluently on the steel band that forms chord member 12 or on the rolling reinforcement web member 18 in advance.
As shown in Figure 4, the relative edge of a wing 28 and 30 of upper chord 14 end therein is shaped simultaneously in advance, to form abut bindiny mechanism 24.The edge of a wing 28 and 30 is cut, or is shaped in advance in the opposite ends of upper chord 14, and wherein the edge of a wing 28 engages or contacts with lower chord 12 with 30.Lower and upper chord member 12 and 14 also comprises the hole 38 that is shaped and aligns mutually in advance, and this hole engages with securing member, to assemble lower and upper chord member 12 and 14.The edge of a wing 28 of upper chord 14 with 30 with the joint on the edge of a wing 28 of corresponding chord member 12 or contact, further strengthened the structural performance of roof truss 10.The upper chord 14 or 16 the edge of a wing 28 and 30 cutting " degree of depth ", or preformed shape is by the configuration decision of roof truss 10, especially by upper chord 14 or the 16 angles decisions with respect to lower chord 12.
Channel-section chord member 12-16 in the present embodiment and reinforcement web member 18 and 20 are asymmetric on the section configuration.Relative another short as the edge of a wing 30 of the aspect ratio in the edge of a wing as the edge of a wing 28, wherein a pair of channel-section chord member or strengthen web member 12 or 18 be designed to interlocked with one another, with chord member or the reinforcement web member that forms closed section.Chord member 12-16 and/or reinforcement web member 18 and 20 can comprise one or more ribs that extend longitudinally.This ribs is preferably formed as in the web 26 of channel-section.
According to another aspect of the present invention, a kind of elongated reinforcement web member 18 and 20 and/or the method for chord member 12-16 of forming have been set forth.As shown in Figure 5, the embodiment of this method comprises: be pre-formed one or more pairs of groove opposite 36 and 38 in elongated steel band 40.This forms broken the connection to groove opposite 36 and 38 adjacent in the present embodiment reinforcement web members 18 with 20 joint.Preformed groove opposite 36 and 38 so is shaped, thereby:
I) after being rolled into section, adjacent reinforcement web member 18 and 20 can be by manual operations (manipulation) in the present embodiment, perhaps by bending adjacent web member 18 and 20 and separated repeatedly;
Ii) when roof truss 10 was established, each relative edge of a wing 28 of strengthening web member 28 or 20 contacted with lower chord 12 or upper chord 14 or 16 with 30.
In the present embodiment, groove opposite 36 and 38 extends partially in the web 26 of corresponding reinforcement web member 18 or 20.Like this, web 26 is enough fragile at the joint of strengthening web member 18 and 20, so that it is separable to strengthen web member 18 and 20.But this is broken to be connected with enough intensity so that the adjacent metal roof component keeps being connected as strengthening web member 28 and 20 in the process of roll forming.Thus, a plurality of members of metal roof truss can form " string " as strengthening web member 18 and 20.For example, strengthen web member as 18 and 20 and other the reinforcement web member of roof truss 10 can form one " string ", and can before having set up roof truss 10, separate.Same for relatively little truss, its upper and lower chord member can connect into " string " as 12-16.Can increase the speed of making the metal roof truss member like this, reduce the danger of loss member, and be convenient to set up metal roof truss as 10.
Be pre-formed reeded chord member 12-16 and also can bore a hole in advance, so that assembling subsequently with reinforcement web member 18 and 20.In the present embodiment, fastener hole 32 and 34 is formed at each opposite ends of strengthening web member 18 and 22, and the fastener hole of aliging mutually in the present embodiment is formed in the lower chord 12 simultaneously.Before steel band 40 is pre-formed groove, afterwards or during, in the web 26 of each roof truss member, all can dig out fastener hole 32 and 34 in advance.Become channel-section shown in Figure 2 with preformed hole and the steel band 40 that is pre-formed the hole are cold rolling.Rolling model is quite cheap and be " non intelligent ", but can make preformed groove of steel band and preformed hole reach quite high accuracy.Can guarantee like this installing and setting up metal roof truss as 10 o'clock, the edge of a wing 28 and 30 of for example strengthening web member 18 and 20 can be born respectively and stay and upper chord 12 and 14.
Fig. 6 shows the top board 42 that top bindiny mechanism 22 is comprised.This top board 42 is an elongated shape, and comprises the reinforcement edge of a wing 44 of extending along an one longitudinal edge.This is strengthened the edge of a wing 44 and is formed by the flange with top board 42 rectangular bendings.This top board 42 is fixed on the upper chord 4 and 16 web of adjacency by bolt or alternate manner.The reinforcement edge of a wing 44 basic horizontal that are provided with between top board 42 and upper chord 14 and 16, and direct inboard towards roof truss 10.Top board 42 is suitable for the top connecting elements upwards to the scope at about 40 degree angles.Top board 42 comprises a plurality of preformed holes 46, top board 42 is installed to upper chord 14 and 16 and strengthen on the web member 20.
Fig. 7 illustrates the block diagram of each step, comprises design and makes above-mentioned metal roof truss.The general step that forms metal roof truss 10 is as follows:
I) design information is input in the processor, this processor can be to being pre-formed groove and prepunched equipment output control information;
Ii) steel band is conveyed into groove and the prepunched equipment of being pre-formed, this equipment forms steel band according to the control information of processor;
Iii) be pre-formed the installation details of printing on groove and the prepunched steel band by processor generation and output;
Iv) in common quite cheap rolling model, roll out steel band.
Details is installed preferably is printed on the member that is suitable for this details, on chord member 12 or reinforcement web member 18.For example, strengthen web member 18 and can comprise installation details or explanation, wherein all need two securing members, be fixed on the upper and lower chord member of appointment with assurance in its each end.
In addition, the roof truss member also can comprise the assembling confirmation that is used for by the bar of third part detection.Element numeral also helps design integrity and its assembling speed of roof truss.
Processor is included in the software of operation among the CAD " environment ", and this software is determined the optimum configuration of metal roof truss according to size and the payload data relevant with building structure.
In addition, according to the relative angle of each roof truss member, program has accurately been determined required preformed groove and perforation.For example, this touches upper and lower chord member for the edge of a wing of guaranteeing to strengthen web member and is even more important.
It is appreciated for those skilled in the art that the present invention described herein also can add various distortion and correction except that special description.For example, the section configuration of strengthening web member and/or chord member is transformable, thereby can give prominence to the structural advantages that the relative edge of a wing engages with chord member.The preformed groove of steel band is transformable, thereby can connect as strengthening forming fragility between the web member at the adjacent member of metal roof truss.
All these variations and correction should think that all not breaking away from the front describes determined characteristic range.
Claims (9)
1, a kind of metal roof truss comprises:
One lower chord is connected in the respective end of a pair of upper chord in place, relative end; And
A plurality of compression web members are connected to respectively on one of lower chord and upper chord in relative place, end;
Compression web member with channel-section profile has the web and a pair of relative edge of a wing with each chord member, each edge of a wing has the free edge part that bends inwards of extending on web, described compression web member and chord member interconnection, make truss be plane substantially, and compression web member chord pole face is orientated to equidirectional;
Wherein each compression web member is made the part web at its opposed end place structure and is stretched out outside its edge of a wing, compression web member is by reclining on the corresponding web that is installed on chord member and be connected with corresponding chord member stretching out the web part, and the edge surface on the edge of a wing adjacent with stretching out the web part is resisted against the corresponding edge of a wing of the chord member that is connected, and extends through with at least one and respectively to stretch out web part and described recline the with it securing member fix in position of web part of the chord member installed of web part that stretches out.
2, metal roof truss according to claim 1, wherein each chord member and compression web member all have essentially identical section configuration.
3, metal roof truss according to claim 1 and 2, wherein the section configuration of each chord member and compression web member is asymmetric, in the wherein relative edge of a wing is shorter than another edge of a wing height.
4, metal roof truss according to claim 1, wherein the web of each chord member and/or compression web member and/or the edge of a wing comprise the ribs that extends longitudinally.
5, metal roof truss according to claim 1, wherein the web part of stretching out of the web of each chord member and compression web member all has preformed hole, aliging mutually in each hole, and receives one or more securing members, is used to make compression web member to be fixed on corresponding chord member.
6, metal roof truss according to claim 1, the upper end of wherein said a pair of upper chord utilize a top board to interconnect.
7, metal roof truss according to claim 6, wherein top board is microscler, and in its opposing longitudinal edges at least one comprises and strengthen the edge of a wing.
8, metal roof truss according to claim 7, the wherein said reinforcement edge of a wing comprise the flange that forms perpendicular to top board, and this top board is fixed on the chord member by a plurality of top fasteners.
9, metal roof truss according to claim 1, wherein a pair of chord member and/or a pair of compression web member are designed to interlocked with one another, to form the section of sealing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPR2284A AUPR228400A0 (en) | 2000-12-28 | 2000-12-28 | Metal roof truss |
| AUPR2284 | 2000-12-28 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018213235A Division CN1300428C (en) | 2000-12-28 | 2001-12-20 | Metal roof truss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1651687A CN1651687A (en) | 2005-08-10 |
| CN100351476C true CN100351476C (en) | 2007-11-28 |
Family
ID=3826318
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018213235A Expired - Lifetime CN1300428C (en) | 2000-12-28 | 2001-12-20 | Metal roof truss |
| CNB2005100093628A Expired - Lifetime CN100351476C (en) | 2000-12-28 | 2001-12-20 | Metal roof truss |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018213235A Expired - Lifetime CN1300428C (en) | 2000-12-28 | 2001-12-20 | Metal roof truss |
Country Status (6)
| Country | Link |
|---|---|
| CN (2) | CN1300428C (en) |
| AU (3) | AUPR228400A0 (en) |
| HK (1) | HK1064141A1 (en) |
| MY (1) | MY128269A (en) |
| TW (1) | TW514693B (en) |
| WO (1) | WO2002053851A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005209605A1 (en) * | 2005-09-08 | 2007-03-22 | Vlaeberg Pty Ltd | Metal Roof Truss Connector Assembly |
| NZ545189A (en) * | 2006-02-08 | 2007-12-21 | Donovan Group Nz Ltd | Structural portal frame joint system with members pre-cut and predetermined angles and connectable without bracket(s) |
| CN102912933A (en) * | 2012-11-20 | 2013-02-06 | 谢合清 | Novel trussed steel roof frame |
| CN105442761A (en) * | 2014-09-29 | 2016-03-30 | 上海宝钢工业技术服务有限公司 | Wind resistant rack of roofing color steel plate |
| US10287774B2 (en) * | 2014-10-10 | 2019-05-14 | Keith Dietzen | Truss assembly |
| FI20145950A (en) * | 2014-10-30 | 2016-05-01 | Brand Building Oy | Procedure for mounting a roof truss with weather protection and packages comprising a roof truss with weather protection |
| CN109577485B (en) * | 2018-12-05 | 2020-07-10 | 江苏春都钢结构工程有限公司 | Steel structure net rack |
| US11681205B2 (en) * | 2019-03-11 | 2023-06-20 | Radiant Images Inc. | Versatile volumetric video camera rig |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE840435C (en) * | 1948-10-02 | 1952-06-09 | Carl Fels | Hollow steel girder, especially for formwork purposes |
| US4616453A (en) * | 1982-05-20 | 1986-10-14 | Sheppard Jr Isaac | Light gauge steel building system |
| EP0318450A1 (en) * | 1987-11-25 | 1989-05-31 | Skanska Aktiebolag | An element for the construction of lattice webs for girders and like structural members, and a method for manufacturing such an element |
| EP0380953A1 (en) * | 1989-02-03 | 1990-08-08 | BWM Dübel + Montagetechnik GmbH | Fixing device for wall or ceiling cover panels |
| AU4004189A (en) * | 1989-07-25 | 1991-02-21 | Nauchno-Issledovatelsky Institut Kommunalnogovodosnabzhenia I Ochistki Vody Akademii Kommunalnogo Khozyaistva Imeni K.D. Pamfilova | Floating water intake clarifying plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3961738A (en) * | 1973-04-11 | 1976-06-08 | C-O, Inc. | Apparatus for making truss members |
| JPS57163086A (en) * | 1981-03-27 | 1982-10-07 | Fuji Photo Film Co Ltd | Beam scanning type marking device |
| AU4004089A (en) * | 1988-08-19 | 1990-02-22 | Kingswood Homes Pty. Limited | Modular roof trusses |
| DE4307757A1 (en) * | 1993-03-11 | 1994-09-15 | Schmies Gmbh | Device for working wooden workpieces with a marking station |
| AU654105B3 (en) * | 1993-04-15 | 1994-10-20 | Die-Craft Engineering Pty Ltd | Method of manufacture of building framing |
| CN1152966C (en) * | 1996-10-17 | 2004-06-09 | 伊莱利利公司 | Method for preserving animal hides |
| IT243514Y1 (en) * | 1997-10-24 | 2002-03-05 | Aluterm S R L | METAL PROFILES, OR NOT, WITH SECTION ELLE, U, ZETA, MULTI-PURPOSE, MANUALLY DEFORMABLE, USABLE IN THE REALIZATION OF |
| US6813919B1 (en) * | 1998-09-08 | 2004-11-09 | Ibs Group Limited | Method of making a frame member into U-section and C-section panel profiles |
| CA2274383A1 (en) * | 1998-12-17 | 2000-06-17 | Claudex Lafrance | Flexible framing template and method of use |
| FR2789197B1 (en) * | 1999-01-29 | 2001-04-20 | Atem | COVERAGE TRACE METHOD AND DEVICE IMPLEMENTING THE SAME |
-
2000
- 2000-12-28 AU AUPR2284A patent/AUPR228400A0/en not_active Abandoned
-
2001
- 2001-12-20 WO PCT/AU2001/001646 patent/WO2002053851A1/en not_active Application Discontinuation
- 2001-12-20 MY MYPI20015811A patent/MY128269A/en unknown
- 2001-12-20 CN CNB018213235A patent/CN1300428C/en not_active Expired - Lifetime
- 2001-12-20 AU AU2002215699A patent/AU2002215699B2/en not_active Expired
- 2001-12-20 CN CNB2005100093628A patent/CN100351476C/en not_active Expired - Lifetime
- 2001-12-27 TW TW090132593A patent/TW514693B/en not_active IP Right Cessation
-
2004
- 2004-09-10 HK HK04106855A patent/HK1064141A1/en not_active IP Right Cessation
-
2006
- 2006-11-17 AU AU2006236064A patent/AU2006236064B2/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE840435C (en) * | 1948-10-02 | 1952-06-09 | Carl Fels | Hollow steel girder, especially for formwork purposes |
| US4616453A (en) * | 1982-05-20 | 1986-10-14 | Sheppard Jr Isaac | Light gauge steel building system |
| EP0318450A1 (en) * | 1987-11-25 | 1989-05-31 | Skanska Aktiebolag | An element for the construction of lattice webs for girders and like structural members, and a method for manufacturing such an element |
| EP0380953A1 (en) * | 1989-02-03 | 1990-08-08 | BWM Dübel + Montagetechnik GmbH | Fixing device for wall or ceiling cover panels |
| AU4004189A (en) * | 1989-07-25 | 1991-02-21 | Nauchno-Issledovatelsky Institut Kommunalnogovodosnabzhenia I Ochistki Vody Akademii Kommunalnogo Khozyaistva Imeni K.D. Pamfilova | Floating water intake clarifying plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1483103A (en) | 2004-03-17 |
| AU2006236064A1 (en) | 2006-12-07 |
| AU2002215699B2 (en) | 2006-08-17 |
| CN1651687A (en) | 2005-08-10 |
| AU2006236064B2 (en) | 2010-02-11 |
| AU2002215699C1 (en) | 2002-07-16 |
| HK1064141A1 (en) | 2005-01-21 |
| CN1300428C (en) | 2007-02-14 |
| MY128269A (en) | 2007-01-31 |
| TW514693B (en) | 2002-12-21 |
| WO2002053851A1 (en) | 2002-07-11 |
| AUPR228400A0 (en) | 2001-01-25 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071128 |