CN201433510Y - Steel roof cover system - Google Patents
Steel roof cover system Download PDFInfo
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- CN201433510Y CN201433510Y CN200920108053XU CN200920108053U CN201433510Y CN 201433510 Y CN201433510 Y CN 201433510Y CN 200920108053X U CN200920108053X U CN 200920108053XU CN 200920108053 U CN200920108053 U CN 200920108053U CN 201433510 Y CN201433510 Y CN 201433510Y
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 337
- 239000010959 steel Substances 0.000 title claims abstract description 337
- 238000010276 construction Methods 0.000 description 9
- 238000005098 hot rolling Methods 0.000 description 8
- 239000004567 concrete Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009957 hemming Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
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Abstract
The utility model discloses a steel roof cover system which includes at least two steel roof trusses arranged in parallel and a plurality of linkage trusses connecting two adjacent steel roof trusses;and the two steel roof trusses are parallel chord steel roof trusses (1), and the linkage trusses are parallel chord steel roof trusses (2). The steel roof cover system provided by the utility modeladopts the steel roof trusses and the linkage trusses having parallel chord structures, and realizes no span limit while ensuring the stability; and the structural system is simplified, so that the steel consumption is reduced.
Description
Technical Field
The utility model relates to a steel roof system among the building engineering field indicates a roof truss adopts parallel chord steel roof truss and links the steel roof system that the truss adopted parallel chord truss especially.
Background
Various types of steel roof systems which are disclosed and used in China at present come from three national standard drawing sets, which are respectively as follows:
(1) in 2005, light-duty trapezoidal steel roof trusses 05G515 compiled by the institute of investigation and design of northern transportation university, the drawing centrally stipulates roof truss spacing of 6m, 7.5m and 9m, roof purlin spacing of 1.5 or 3.0m and roof purlin spacing of 15, 18, 21, 24, 27, 30, 33 and 36m, and roof skylight and longitudinal roof skylight are provided.
(2) In 2005, "trapezoidal steel roof truss 05G 511" compiled by the institute of investigation and design of northern transportation university, the drawing collectively stipulates trapezoidal steel roof trusses with spans of 18m, 21m, 24m, 27m, 30m, 33m and 36m, and the roof adopts a prestressed concrete roof panel of 1.5 × 6 m.
(3) In 2005, the light roof triangular steel roof truss was compiled by the institute of planning and design of the aviation industry of china 05G517, and the drawing collectively stipulates light roof triangular steel roof trusses with spans of 6m, 9m, 12m, 15m and 18 m.
The steel roof truss referred to in the above set of figures suffers from the following disadvantages:
1) the steel roof truss is trapezoidal or triangular, and the roof truss has the problems of large steel consumption and various required components due to the adoption of the structure for slope finding.
2) When the steel roof truss supports a concrete roof, the roof adopts a large roof plate. Large roof boarding techniques and products have been used rarely in practice, replacing cast-in-place concrete overlays on steel decking. The steel roof truss is not suitable for the construction mode of casting the concrete surface layer on the steel bearing plate in situ.
3) The section steel of the steel roof truss is angle steel, and the form is monotonous, for example: there is no reference to steel roof trusses and the like mainly made of H-shaped steel or channel steel.
4) The connecting structure between the steel roof trusses adopts the form of primary and secondary beams and brackets, which causes the problem of large steel consumption of the roof trusses.
5) The maximum span of the steel roof truss is only 36m, and the requirement of actual engineering on the span of the steel roof truss cannot be met.
In actual engineering practice, various new technologies from abroad are introduced, and novel steel roof systems such as portal rigid frames, honeycomb beams, net frames, arched roof trusses, beam string roof trusses, parallel string roof trusses and primary and secondary beam structures are formed.
However, various steel roof systems have various problems to different degrees. For example: the portal rigid frame adopts a variable-section solid web girder as a main girder and is basically only suitable for light roofs; the honeycomb beam is also a solid web system in nature. And for steel roof systems constructed by solid web beams such as portal rigid frames, honeycomb beams and the like, the defects of relatively small span, light roof load, limited arrangement of hanging points and the like exist.
The net rack, the arched roof truss and the beam roof truss are mainly applied to public buildings with large span, are less adopted in house buildings such as factory buildings, houses and the like, and have poor applicability. For a roof system formed by a parallel chord roof truss and a primary and secondary beam structure, the roof system has a large steel consumption and has a plurality of problems of resource waste and the like because the roof truss connecting structure is the primary and secondary beam.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steel roof system has solved current steel roof system and has used the problem that the steel volume is big, the span is little.
A steel roof system comprising: the connecting system comprises at least two steel roof trusses arranged in parallel and a plurality of connecting trusses for connecting two adjacent steel roof trusses; the steel roof truss is a parallel chord steel roof truss (1), and the connecting truss is a parallel chord truss (2).
The steel roof system of the utility model, the parallel chord steel roof truss (1) comprises an upper chord (11) and a lower chord (12) which are arranged in parallel, and a support rod which connects the upper chord (11) and the lower chord (12);
the parallel chord truss (2) comprises an upper chord member (21) and a lower chord member (22) which are arranged in parallel, and a supporting rod for connecting the upper chord member and the lower chord member (21, 22);
two ends of an upper chord (21) of the parallel chord truss (2) are respectively connected with upper chords (11) of two parallel chord steel roof trusses (1) which are adjacently arranged, and two ends of a lower chord (22) of the parallel chord truss (2) are respectively connected with lower chords (12) and/or supporting rods of two parallel chord steel roof trusses (1) which are adjacently arranged.
In the steel roof system of the utility model, when the support rods on the parallel chord steel roof truss (1) are diagonal web members (14);
two adjacent diagonal web members (14) are V-shaped or inverted V-shaped; or
A plurality of groups of diagonal web members (14) which are crossed in an X shape are arranged on the parallel chord steel roof truss (1).
The utility model discloses an above-mentioned steel roof system, bracing piece on parallel chord steel roof truss (1) includes oblique web member (14) and erects web member (13) the time, arranges one oblique web member (14) or two oblique web members (14) of cross arrangement between two adjacent perpendicular web members (13).
The utility model discloses an above-mentioned steel roof system, parallel chord steel roof truss (1) are gone up two adjacent vertical web members (13) and are arranged when arranging an oblique web member (14) between, arrange two in the centre to one side oblique web member (14) are the V font or the font of falling V, are located oblique web member (14) parallel arrangement of upper and lower chord (11, 12) mid point line one side, are located oblique web member (14) also parallel arrangement of upper and lower chord (11, 12) mid point line opposite side.
The steel roof system of the utility model, the upper chord member (11), the lower chord member (12), the vertical web member (13) and the diagonal web member (14) which are contained on the parallel chord steel roof truss (1) adopt the same section steel or combined section steel, or adopt different section steels or combined section steels;
the combined section steel is formed by combining at least two section steels of the same or different types.
The utility model discloses an above-mentioned steel roof system, last chord member (11), lower chord member (12), perpendicular web member (13), oblique web member (14) that contain on parallel chord steel roof truss (1) are whole not to have prestressing force, have prestressing force or partial prestressing force.
The utility model discloses an above-mentioned steel roof system, bracing piece on parallel chord truss (2) is diagonal web member (24), and
two adjacent diagonal web members (24) are V-shaped or inverted V-shaped; or
And a plurality of groups of diagonal web members (24) which are crossed and form an X shape are arranged on the parallel chord truss (2).
The utility model discloses an above-mentioned steel roof system, bracing piece on parallel chord truss (2) includes oblique web member (24) and erects web member (23) when, arranges one oblique web member (24) or two oblique web members (24) of cross arrangement between two adjacent perpendicular web members (23).
The utility model discloses an above-mentioned steel roof system, when arranging an oblique web member (24) between two adjacent perpendicular web members (23) on parallel truss string (2), arrange two in the centre to one side oblique web member (24) are the V font or the font of falling V, and are located oblique web member (24) parallel arrangement of upper and lower chord (21, 22) mid point line one side, are located oblique web member (24) also parallel arrangement of upper and lower chord (21, 22) mid point line opposite side.
The steel roof system of the utility model, the upper chord member (21), the lower chord member (22), the vertical web members (23) and the diagonal web members (24) on the parallel truss string (2) adopt the same section steel or combined section steel, or adopt different section steels or combined section steel;
the combined section steel is formed by combining at least two section steels of the same or different types.
The utility model discloses an above-mentioned steel roof system, last chord member (21), lower chord member (22), perpendicular web member (23), oblique web member (24) that contain on parallel chord truss (2) are whole not to have prestressing force, all have prestressing force or part have prestressing force.
The steel roof system provided by the utility model adopts the steel roof truss and the connecting truss with the parallel line structure, at least two parallel chord steel roof trusses are arranged in parallel, and the connecting truss with a plurality of parallel chord structures is used for connecting two adjacent steel roof trusses; the structural system of the steel roof system is simplified, and the steel consumption is reduced. And the steel roof truss and the truss with the parallel chord structure can ensure the mechanical stability of the steel roof system, realize the unlimited span and greatly improve the application range of the steel roof system.
Drawings
Fig. 1 is a schematic view of the overall structure of a steel roof system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the parallel chord steel roof truss of FIG. 1 according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the parallel chord truss shown in fig. 1 according to an embodiment of the present invention;
fig. 4 is a schematic view of an alternative structure of the parallel chord steel roof truss in the embodiment of the present invention;
fig. 5 is a schematic view of an alternative structure of the parallel chord steel roof truss according to the embodiment of the present invention;
fig. 6 is a schematic view of an alternative structure of the parallel chord steel roof truss according to the embodiment of the present invention;
fig. 7 is a schematic view of an alternative structure of the parallel chord steel roof truss according to the embodiment of the present invention;
fig. 8 is a schematic view of an alternative construction of the parallel chord steel roof truss according to the embodiment of the present invention;
fig. 9 is a schematic view of an alternative construction of the parallel chord steel roof truss according to the embodiment of the present invention;
fig. 10 is a schematic view of an alternative construction of the parallel chord steel roof truss according to the embodiment of the present invention;
fig. 11 is a schematic view of an alternative construction of the parallel chord steel roof truss according to the embodiment of the present invention;
fig. 12 is a schematic view of an alternative construction of the parallel chord steel roof truss according to the embodiment of the present invention;
fig. 13 is a schematic diagram of an alternative structure of the parallel chord truss in the embodiment of the present invention;
fig. 14 is a schematic diagram of an alternative structure of the parallel chord truss in the embodiment of the present invention;
fig. 15 is a schematic diagram of an alternative structure of the parallel chord truss in the embodiment of the present invention;
fig. 16 is a schematic diagram of an alternative structure of the parallel chord truss in the embodiment of the present invention;
fig. 17 is a schematic cross-sectional view of a combination of a portion of section steel and section steel in an embodiment of the present invention.
Detailed Description
In order to solve the economic rationality of steel volume for steel roof system, realize arranging wantonly and the unrestricted in the design of steel roof system span of hoisting point, the embodiment of the utility model designs and provides a steel roof system that comprises parallel chord steel roof truss and parallel chord truss.
This steel roof system includes: the connecting system comprises at least two steel roof trusses arranged in parallel and a plurality of connecting trusses for connecting two adjacent steel roof trusses; the steel roof truss and the connecting truss both adopt parallel chord structures, wherein the connecting truss is a connecting structure of a steel roof system. For example: in the steel roof truss system shown in fig. 1, the steel roof truss is a parallel chord steel roof truss (1), and the connecting truss is a parallel chord truss (2). Preferably, at least two parallel chord trusses 2 are arranged between every two adjacent parallel chord steel roof trusses 1. The steel roof system shown in fig. 1 is exemplified by two parallel-chord steel roof trusses 1 and a plurality of parallel-chord trusses 2 connecting the two parallel-chord steel roof trusses 1.
In fig. 1, two parallel-chord steel roof trusses 1 are arranged in parallel, two ends of an upper chord 21 of each parallel-chord truss 2 are respectively connected with upper chords 11 of two adjacent parallel-chord steel roof trusses 1, and two ends of two lower chords 22 of each parallel-chord truss 2 are respectively connected with lower chords 12 of two adjacent parallel-chord steel roof trusses 1.
The following description will be made by way of specific examples of several typical arrangements of parallel-chord steel roof trusses and parallel-chord trusses in a steel roof system according to embodiments of the present invention.
For example: the steel roof system shown in figure 1 comprises a parallel chord steel roof truss 1 and a parallel chord truss 2. The two parallel chord steel roof trusses 1 are arranged in parallel, and a plurality of parallel chord trusses 2 for connecting the two parallel chord steel roof trusses are arranged in the middle.
The concrete structure of the parallel chord steel roof truss 1 is shown in figure 2. The parallel chord steel roof truss 1 comprises an upper chord 11 and a lower chord 12 which are arranged in parallel, and a support rod for connecting the upper chord 11 and the lower chord 12. The support rod specifically is: a vertical web member 13 vertically connected with the upper chord member 11 and the lower chord member 12, and a diagonal web member 14 non-vertically connected with the upper chord member 11 and the lower chord member 12. The upper chord 11 and the lower chord 12 of the parallel chord steel roof truss 1 are made of hot-rolled H-shaped steel, the vertical web members 13 are made of hot-rolled H-shaped steel, and the oblique web members 14 are made of back-to-back double-channel steel and have no prestress. An oblique web member 14 is arranged between every two adjacent vertical web members 13, the oblique web members 14 positioned at two sides of the connecting line of the midpoints of the upper chord member and the lower chord member are symmetrically arranged, the two oblique web members 14 arranged in the middle are V-shaped, and the oblique web members at two sides are respectively arranged in parallel with the oblique web member 14 positioned at the same side with the oblique web member in the middle of the two oblique web members. The diagonal web member 14 arrangement in fig. 2 is also referred to as a riser.
The specific structure of the parallel-chord truss 2 is shown in fig. 3. The parallel chord truss comprises an upper chord 21 and a lower chord 22 arranged in parallel, and a support bar connecting the upper and lower chords (11, 12). The support rod specifically is: a vertical web member 23 vertically connected with the upper chord member 21 and the lower chord member 22, and a diagonal web member 24 non-vertically connected with the upper chord member 21 and the lower chord member 22. The upper chord member 21 of the parallel chord truss 2 adopts H-shaped steel, the lower chord member 22 adopts back-to-back double-channel steel, the vertical web member 23 and the inclined web member 24 adopt limb-to-back homodromous combined double-angle steel, and no prestress exists. An oblique web member 24 is arranged between every two adjacent vertical web members 23, the oblique web members 24 positioned at two sides of the connecting line of the midpoints of the upper chord member and the lower chord member are symmetrically arranged, the two oblique web members 24 arranged in the middle are V-shaped, and the oblique web members at two sides are respectively arranged in parallel with the oblique web member 24 positioned at the same side with the oblique web member in the middle. The arrangement of the diagonal web members 24 in fig. 3 is also referred to as a riser.
The two ends of the upper chord 21 of the parallel-chord truss 2 are respectively connected with the upper chords 11 of the two parallel-chord steel roof trusses 1, and the two ends of the lower chord 22 of the parallel-chord truss 2 are respectively connected with the lower chords 12 of the two parallel-chord steel roof trusses 1, so that the steel roof system shown in figure 1 is formed. And the top surface of the upper chord 21 of the parallel-chord truss 2 is flush with the top surface of the upper chord 11 of the parallel-chord steel roof truss 1. The top surface of the lower chord 22 of the parallel chord truss 2 does not exceed the top surface elevation of the lower chord 12 of the parallel chord steel roof truss 1.
In addition, fig. 1 only shows an example of a steel roof system composed of two parallel chord steel roof trusses 1 and a plurality of parallel chord trusses 2, in practical application, the number of the parallel chord steel roof trusses 1 is not limited to two, a plurality of parallel chord steel roof trusses can be arranged in parallel, and a plurality of parallel chord trusses 2 connected with each two adjacent parallel chord steel roof trusses 1 are arranged between each two adjacent parallel chord steel roof trusses 1.
The steel roof system of figure 1 described above, in addition to the construction of the parallel chord steel roof truss 1 of figure 2 described above, the parallel chord steel roof truss 1 may take a variety of forms:
(1) the diagonal web members of the parallel chord steel roof truss 1 are of the same elevated construction as in figure 2, except that the vertical web members 13 and/or the diagonal web members 14 are formed from different section steels than in figure 2. As shown in fig. 4, 5, 6 and 7. Wherein,
in the parallel chord steel roof truss 1 shown in fig. 4, the upper chord 11 and the lower chord 12 are made of hot-rolled H-shaped steel, the vertical web members 13 are made of hot-rolled H-shaped steel, and the diagonal web members 14 are made of double angle steel with the same direction of the limbs and the back, and both of the two angle steel have no prestress. The diagonal web members 14 are also arranged in a rising structure.
In the parallel chord steel roof truss 1 shown in fig. 5, the upper chord 11 and the lower chord 12 are made of hot-rolled H-shaped steel, the vertical web members 13 are made of hot-rolled H-shaped steel, and the diagonal web members 14 are made of double angle steel with reverse limb-back combination, and both of them have no prestress. The diagonal web members 14 are also arranged in a rising structure.
In the parallel chord steel roof truss 1 shown in fig. 6, the upper chord 11 and the lower chord 12 are made of hot-rolled H-shaped steel, the vertical web members 13 are made of hot-rolled H-shaped steel, and the diagonal web members 14 are made of single round steel and have no prestress. The diagonal web members 14 are also arranged in a rising structure.
In the parallel chord steel roof truss 1 shown in fig. 7, hot-rolled H-shaped steel is adopted as the upper chord 11 and the lower chord 12, hot-rolled H-shaped steel is adopted as the vertical web members 13, and hot-rolled H-shaped steel is adopted as the diagonal web members 14, and both the upper chord member and the lower chord member are free of prestress. The diagonal web members 14 are also arranged in a rising structure.
(2) The diagonal web members of the parallel chord steel roof truss 1 adopt a descending structure, as shown in fig. 8.
In the parallel chord steel roof truss 1 shown in fig. 8, an oblique web member 14 is arranged between every two adjacent vertical web members 13, the oblique web members 14 located at both sides of the connecting line of the midpoints of the upper chord member 11 and the lower chord member 12 are symmetrically arranged, the two oblique web members 14 arranged in the middle are V-shaped, and the oblique web members at both sides are respectively arranged in parallel with the oblique web member 14 located at the same side of the two oblique web members in the middle. And the diagonal web members 14 are arranged in a drop-down configuration.
The upper chord 11 and the lower chord 12 of the parallel chord steel roof truss 1 adopt hot-rolled H-shaped steel, the vertical web members 13 adopt hot-rolled H-shaped steel, and the oblique web members 14 adopt back-to-back double-channel steel, and are both free of prestress.
(3) The arrangement form of the diagonal web members of the parallel chord steel roof truss 1 is V-shaped, as shown in figure 9.
In the parallel chord steel roof truss 1 shown in fig. 9, one diagonal web member 14 is arranged between every two adjacent vertical web members 13, and the adjacent diagonal web members 14 are V-shaped or inverted V-shaped. The first two diagonal web members 14 in fig. 9 are V-shaped and therefore the arrangement is generally referred to as a V-shaped configuration.
The upper chord 11 and the lower chord 12 of the parallel chord steel roof truss 1 adopt hot-rolled H-shaped steel, the vertical web members 13 adopt hot-rolled H-shaped steel, and the oblique web members 14 adopt back-to-back double-channel steel, and are both free of prestress.
(4) The arrangement form of the diagonal web members of the parallel chord steel roof truss 1 is an inverted V shape, as shown in figure 10.
In the parallel chord steel roof truss 1 shown in fig. 10, one diagonal web member 14 is arranged between every two adjacent vertical web members 13, and the adjacent diagonal web members 14 are V-shaped or inverted V-shaped. The first two diagonal web members 14 in fig. 10 are inverted V-shaped and therefore the arrangement is generally referred to as an inverted V-shaped configuration.
The upper chord 11 and the lower chord 12 of the parallel chord steel roof truss 1 adopt hot-rolled H-shaped steel, the vertical web members 13 adopt hot-rolled H-shaped steel, and the oblique web members 14 adopt back-to-back double-channel steel, and are both free of prestress.
(5) The arrangement of the diagonal web members of the parallel chord steel roof truss 1 is in a cross type (X shape) as shown in figure 11.
In the parallel chord steel roof truss 1 shown in fig. 11, two diagonal web members 14 are arranged between every two adjacent vertical web members 13, and the two diagonal web members 14 are in an X shape. This arrangement is generally referred to as a cross-bar arrangement.
The upper chord 11 and the lower chord 12 of the parallel chord steel roof truss 1 adopt hot-rolled H-shaped steel, the vertical web members 13 adopt hot-rolled H-shaped steel, and the inclined web members 14 adopt single round steel without prestress.
(6) The parallel chord steel roof truss 1 has no vertical web members, and the diagonal web members are arranged in an inverted V shape, as shown in FIG. 12.
In the parallel chord steel roof truss 1 shown in fig. 12, the upper chord member 11 and the lower chord member 12 are made of hot rolled H-shaped steel, no vertical web member is provided, and the diagonal web members 14 are made of back-to-back double channel steel, and both are free of prestress. The adjacent diagonal web members 14 are V-shaped or inverted V-shaped. The first two diagonal web members 14 in fig. 12 are inverted V-shaped and therefore the arrangement is generally referred to as an inverted V-shaped configuration.
It should be noted that: the diagonal web members 14 may be arranged in a V-shape, in which case, the adjacent diagonal web members 14 are V-shaped or inverted V-shaped, and the first two diagonal web members 14 are V-shaped. Further: the arrangement of the diagonal web members 14 may also be in the form of a cross-type structure as shown in fig. 11.
The steel roof system shown in fig. 1, in addition to the above-described structure of the parallel-chord truss 2 shown in fig. 3, the parallel-chord truss 2 may take a variety of forms:
(i) the diagonal web members of the parallel chord truss 2 are arranged in a V-shape as shown in fig. 13.
In the parallel truss string 2 shown in fig. 13, one diagonal web member 24 is disposed between every two adjacent vertical web members 23, and the adjacent diagonal web members 24 are V-shaped or inverted V-shaped. The first two diagonal web members 24 in fig. 13 are V-shaped and therefore the arrangement is generally referred to as a V-shaped configuration.
The upper chord member 21 of the parallel chord truss adopts H-shaped steel, the lower chord member 22 adopts back-to-back double-channel steel, the vertical web member 23 and the inclined web member 24 adopt limb-back homodromous combined double-angle steel, and no prestress exists.
(ii) The diagonal web members of the parallel chord truss 2 are arranged in an inverted V-shape as shown in fig. 14.
In the parallel-chord truss 2 shown in fig. 14, one diagonal web member 24 is disposed between every two adjacent vertical web members 23, and the adjacent diagonal web members 24 are V-shaped or inverted V-shaped. The first two diagonal web members 24 in fig. 14 are inverted V-shaped and therefore the arrangement is generally referred to as an inverted V-shaped configuration.
The upper chord member 21 of the parallel chord truss adopts H-shaped steel, the lower chord member 22 adopts back-to-back double-channel steel, the vertical web member 23 and the inclined web member 24 adopt limb-back homodromous combined double-angle steel, and no prestress exists.
(iii) The parallel chord truss 2 has a cross-web arrangement (X-shape) as shown in fig. 15.
In the parallel truss string 2 shown in fig. 15, two diagonal web members 24 are disposed between every two adjacent vertical web members 23, and the two diagonal web members 24 are in an X shape. This arrangement is generally referred to as a cross-bar arrangement.
The upper chord member 21 of the parallel chord truss adopts H-shaped steel, the lower chord member 22 adopts back-to-back double-channel steel, the vertical web member 23 and the inclined web member 24 adopt limb-back homodromous combined double-angle steel, and no prestress exists.
(iv) The parallel-chord truss 2 has no vertical web members and the diagonal web members 24 thereof are arranged in the form of an inverted V-shape, as shown in fig. 16.
In the parallel chord truss 2 shown in fig. 16, the upper chord member 21 is made of H-shaped steel, the lower chord member 22 is made of back-to-back double channel steel without vertical web members, the diagonal web members 24 are made of limb-back homodromous combined double angle steel without prestress, and the arrangement form of the diagonal web members is an inverted V shape.
It should be noted that: the diagonal web members 24 may be arranged in a V-shape, in which case, the adjacent diagonal web members 24 are V-shaped or inverted V-shaped, and the first two diagonal web members 24 are V-shaped. Further: without the vertical web members, the diagonal web members 14 may be arranged in a cross configuration as shown in fig. 15.
In particular, neither the parallel-chord steel roof truss 1 nor the parallel-chord truss 2 are limited to the arrangements listed above, such as: the parallel-chord truss 2 can also be of a drop-down type construction like the parallel-chord steel roof truss 1, which is not illustrated here.
In summary, in the steel roof system provided in the embodiments of the present invention, the parallel-string steel roof truss includes an upper chord member and a lower chord member arranged in parallel, and a support rod (including a vertical web member and/or a diagonal web member) connecting the upper chord member and the lower chord member. Specifically, the method comprises the following steps: the vertical web members are vertically connected with the upper chord member and the lower chord member, and the oblique web members are non-vertically connected with the upper chord member and the lower chord member.
The parallel chord truss comprises an upper chord member and a lower chord member which are arranged in parallel, and a support rod (comprising a vertical web member and/or a diagonal web member) for connecting the upper chord member and the lower chord member. Specifically, the method comprises the following steps: the vertical web members are vertically connected with the upper chord member and the lower chord member, and the oblique web members are non-vertically connected with the upper chord member and the lower chord member. When the vertical web members and the diagonal web members are connected with the upper chord member and the lower chord member, the connection can be but not limited to be carried out through the gusset plates, and the connection between the parallel chord steel roof truss and the parallel chord truss can be but not limited to be hinged.
The steel roof system comprises at least two parallel chord steel roof trusses which are arranged in parallel, wherein two ends of an upper chord of a parallel chord truss are respectively connected with upper chords of the two parallel chord steel roof trusses which are arranged adjacently, and two ends of a lower chord of the parallel chord truss are respectively connected with lower chords and/or supporting rods of the two parallel chord steel roof trusses which are arranged adjacently.
Fig. 1 shows a situation that two ends of a lower chord of a parallel chord truss are respectively connected with lower chords of two adjacent parallel chord steel roof trusses, and when the distance between the upper chord and the lower chord of the parallel chord truss is smaller than that between the upper chord and the lower chord of the parallel chord steel roof truss, two ends of the lower chord of the parallel chord truss are respectively connected with supporting rods of the two adjacent parallel chord steel roof trusses. In particular, when the distance between the upper chord and the lower chord of the parallel-chord truss is smaller than the distance between the upper chord and the lower chord of the parallel-chord steel roof truss, the parallel-chord truss can also be deformed, for example: the inclined stay bar is arranged on the parallel chord truss and connected with the lower chord, and the inclined stay bar is connected with the lower chord of the parallel chord steel roof truss, so that the steel roof system has better stability.
When there is no vertical web member on the parallel chord steel roof truss, the arrangement form of the diagonal web member may include: two adjacent diagonal web members are V-shaped or inverted V-shaped; or a plurality of groups of diagonal web members which are crossed and form an X shape are arranged on the parallel chord steel roof truss. When the oblique web members and the vertical web members are arranged on the parallel chord steel roof truss at the same time, one oblique web member or two oblique web members in crossed arrangement can be arranged between two adjacent vertical web members. When an oblique web member is arranged between two adjacent vertical web members on the parallel chord steel roof truss, the two oblique web members arranged in the middle of the parallel chord steel roof truss are V-shaped or inverted V-shaped, the oblique web members positioned on one side of the connecting line of the midpoints of the upper chord member and the lower chord member are arranged in parallel, and the oblique web members positioned on the other side of the connecting line of the midpoints of the upper chord member and the lower chord member are also arranged in parallel.
The upper chord member, the lower chord member, the diagonal web members and the vertical web members which are arranged on the parallel chord steel roof truss adopt the same section steel or combined section steel, or adopt different section steels or combined section steels; that is, the structural steel or the combination type used for the upper chord member, the lower chord member, the diagonal web member and the vertical web member may be the same or different. Wherein, the combined section steel is formed by combining at least two section steels of the same or different types.
The upper chord member, the lower chord member, the oblique web member and the vertical web member which are arranged on the parallel chord steel roof truss can be completely free of prestress, can be completely prestressed, and can be partially prestressed and partially non-prestressed.
When there is no vertical web member on the parallel truss string, the arrangement form of the diagonal web members may include: two adjacent diagonal web members are V-shaped or inverted V-shaped; or a plurality of groups of diagonal web members which are crossed and form an X shape are arranged on the parallel chord trusses. When the oblique web members and the vertical web members are arranged on the parallel chord truss, one oblique web member is arranged between every two adjacent vertical web members or two oblique web members are arranged in a crossed manner. When an oblique web member is arranged between two adjacent vertical web members on the parallel chord truss, the two oblique web members arranged in the middle of the parallel chord truss are in a V shape or an inverted V shape, the oblique web members positioned on one side of the midpoint connecting line of the upper and lower chord members are arranged in parallel, and the oblique web members positioned on the other side of the midpoint connecting line of the upper and lower chord members are also arranged in parallel.
The upper chord member, the lower chord member, the diagonal web member and the vertical web member which are arranged on the parallel chord truss adopt the same section steel or combined section steel, or adopt different section steels or combined section steels; that is, the structural steels or combinations used for the upper chord member, the lower chord member, the diagonal web member, and the vertical web member may be the same or different. Wherein, the combined section steel is formed by combining at least two section steels of the same or different types.
The upper chord member, the lower chord member, the diagonal web members and the vertical web members which are arranged on the parallel chord truss can be completely prestressed or partially prestressed, and the part of.
For example: the shaped steel that upper chord member, lower chord member, perpendicular web member, oblique web member of above-mentioned parallel chord steel roof truss and parallel chord truss can choose for use includes: hot rolling H-shaped steel, welding H-shaped steel, hot rolling common I-shaped steel, hot rolling light I-shaped steel, hot rolling common channel steel, welding channel-shaped steel, hot rolling light channel steel, hot rolling equal angle steel, hot rolling unequal angle steel, T-shaped steel, hot rolling seamless steel pipe, electric welding steel pipe, round steel, steel strand and high-strength steel wire bundle; the method can also comprise the following steps: common high-frequency welding thin-wall H-shaped steel, hemming high-frequency welding thin-wall H-shaped steel, cold-formed equilateral angle steel, cold-formed channel steel, hemming groove-shaped cold-formed thin-wall steel, straight hemming Z-shaped cold-formed thin-wall steel, oblique hemming Z-shaped cold-formed thin-wall steel, square hollow steel and rectangular hollow steel; and so on.
The shaped steel combination that the last chord member, lower chord member, perpendicular web member, oblique web member of above-mentioned parallel chord steel roof truss and parallel chord truss can choose for use includes: the method comprises the following steps of (1) adopting a combined section of two hot-rolled equilateral angles, a combined section of two hot-rolled equilateral angles (two short sides are connected), a combined section of two hot-rolled equilateral angles (two long sides are connected), a combined section of two hot-rolled angle steel limbs in opposite directions, a combined section of two hot-rolled common channel steels (back to back), a combined section of two hot-rolled common channel steels (mouth to mouth), and a combined section of not less than two round steels; and so on.
FIG. 17 is a schematic sectional view of a part of the section steel and a composite section steel. FIG. 17 shows the cross-sectional shapes of H-section steel, T-section steel, angle steel, channel steel, square steel pipe, round steel and other section steel; and the cross-sectional shapes of the combined section steels such as limb-back homodromous double angle steel, limb-back reverse double angle steel, back-to-back double channel steel, mouth-to-mouth double channel steel, steel strand, parallel double round steel, triangular combined round steel and the like.
The embodiment of the utility model provides an above-mentioned steel roof system adopts parallel chord structure's steel roof truss and truss, supports the roofing load on can effectively guaranteeing that the roof truss plane is stable and the basis of level biography power to the mechanical stability of steel roof system has been guaranteed. The parallel chord truss integrates an external force transmission system of the steel roof truss plane, a purline system and a traditional hanger system or a hanging layer into a set of system, so that the structural system is simplified, and the steel consumption of the steel roof system is greatly reduced.
The steel roof system adopts the steel roof truss and the truss with the parallel chord structure, so that the unlimited span can be realized. The composite material can be applied to light roofs and concrete roofs; the building block can be used in industrial plants and large public buildings; the composite material can be applied to a roof system and also can be applied to a floor system; the application range of the steel roof system is greatly improved, and the steel roof system has the advantage of wide application range.
The parallel chord truss and the parallel chord steel roof truss are connected to form a steel roof system, so that a convenient hanging point is provided for hanging of pipeline equipment and the like.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. A steel roof system, comprising: the connecting system comprises at least two steel roof trusses arranged in parallel and a plurality of connecting trusses for connecting two adjacent steel roof trusses; the steel roof truss is a parallel chord steel roof truss (1), and the connecting truss is a parallel chord truss (2).
2. A steel roof system according to claim 1, wherein said parallel chord steel roof truss (1) comprises an upper chord (11) and a lower chord (12) arranged in parallel, and support rods connecting the upper and lower chords (11, 12);
the parallel chord truss (2) comprises an upper chord member (21) and a lower chord member (22) which are arranged in parallel, and a supporting rod for connecting the upper chord member and the lower chord member (21, 22);
two ends of an upper chord (21) of the parallel chord truss (2) are respectively connected with upper chords (11) of two parallel chord steel roof trusses (1) which are adjacently arranged, and two ends of a lower chord (22) of the parallel chord truss (2) are respectively connected with lower chords (12) and/or supporting rods of two parallel chord steel roof trusses (1) which are adjacently arranged.
3. A steel roof system according to claim 2, characterised in that when the support rods on the parallel chord steel roof truss (1) are diagonal web members (14);
two adjacent diagonal web members (14) are V-shaped or inverted V-shaped; or
A plurality of groups of diagonal web members (14) which are crossed in an X shape are arranged on the parallel chord steel roof truss (1).
4. A steel roof system according to claim 2, c h a r a c t e r i z e d in that when the support rods on the parallel chord steel roof truss (1) comprise diagonal web members (14) and vertical web members (13), one diagonal web member (14) is arranged between two adjacent vertical web members (13) or two diagonal web members (14) are arranged crosswise.
5. A steel roof system according to claim 4, wherein when a diagonal web member (14) is arranged between two adjacent vertical web members (13) on said parallel chord steel roof truss (1), the two said diagonal web members (14) arranged in the middle are V-shaped or inverted V-shaped, the diagonal web members (14) on one side of the line of midpoints of the upper and lower chords (11, 12) are arranged in parallel, and the diagonal web members (14) on the other side of the line of midpoints of the upper and lower chords (11, 12) are also arranged in parallel.
6. A steel roof system according to any one of claims 3 to 5, characterised in that said parallel chord steel roof truss (1) comprises upper chords (11), lower chords (12), vertical web members (13), diagonal web members (14) formed of the same profile or a combination of profiles, or of different profiles or a combination of profiles;
the combined section steel is formed by combining at least two section steels of the same or different types.
7. A steel roof system according to claim 6, wherein said parallel chord steel roof truss (1) comprises upper chords (11), lower chords (12), vertical web members (13), diagonal web members (14) that are all non-prestressed, all prestressed or partially prestressed.
8. A steel roof system according to claim 2, characterised in that the supporting rods on the parallel chord trusses (2) are diagonal web members (24), and
two adjacent diagonal web members (24) are V-shaped or inverted V-shaped; or
And a plurality of groups of diagonal web members (24) which are crossed and form an X shape are arranged on the parallel chord truss (2).
9. A steel roof system according to claim 2, c h a r a c t e r i z e d in that when the support rods on the parallel chord trusses (2) comprise diagonal web members (24) and vertical web members (23), one diagonal web member (24) is arranged between two adjacent vertical web members (23) or two diagonal web members (24) are arranged crosswise.
10. A steel roof system according to claim 9, c h a r a c t e r i z e d in that when one diagonal web member (24) is arranged between two adjacent vertical web members (23) on said parallel chord truss (2), the two said diagonal web members (24) arranged in the middle are V-shaped or inverted V-shaped, and the diagonal web members (24) on one side of the connecting line of the midpoints of the upper and lower chords (21, 22) are arranged in parallel, and the diagonal web members (24) on the other side of the connecting line of the midpoints of the upper and lower chords (21, 22) are also arranged in parallel.
11. A steel roof system according to any one of claims 8-10, c h a r a c t e r i z e d in that said parallel trusses (2) comprise upper chords (21), lower chords (22), vertical web members (23), diagonal web members (24) of the same profile or a combination of profiles, or of different profiles or combinations of profiles;
the combined section steel is formed by combining at least two section steels of the same or different types.
12. A steel roof system according to claim 11, characterised in that the upper chords (21), lower chords (22), vertical web members (23), diagonal web members (24) included on the parallel chord trusses (2) are all non-prestressed, all prestressed or partially prestressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920108053XU CN201433510Y (en) | 2009-05-21 | 2009-05-21 | Steel roof cover system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920108053XU CN201433510Y (en) | 2009-05-21 | 2009-05-21 | Steel roof cover system |
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| Publication Number | Publication Date |
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| CN201433510Y true CN201433510Y (en) | 2010-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920108053XU Expired - Lifetime CN201433510Y (en) | 2009-05-21 | 2009-05-21 | Steel roof cover system |
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| CN (1) | CN201433510Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164947A (en) * | 2014-08-06 | 2014-11-26 | 河南天丰钢结构建设有限公司 | Long-span roof truss purline |
| CN106436903A (en) * | 2016-10-08 | 2017-02-22 | 西南科技大学 | Interlayer reinforcement component of cold-bent thin-wall type steel house |
| CN110130558A (en) * | 2019-06-03 | 2019-08-16 | 上海欧本钢结构有限公司 | Square formed fences system and construction method made of steel secondary beam and truss arranged crosswise |
-
2009
- 2009-05-21 CN CN200920108053XU patent/CN201433510Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164947A (en) * | 2014-08-06 | 2014-11-26 | 河南天丰钢结构建设有限公司 | Long-span roof truss purline |
| CN106436903A (en) * | 2016-10-08 | 2017-02-22 | 西南科技大学 | Interlayer reinforcement component of cold-bent thin-wall type steel house |
| CN106436903B (en) * | 2016-10-08 | 2018-07-10 | 西南科技大学 | Light gauge cold-formed steel shape house interlayer strengthening part |
| CN110130558A (en) * | 2019-06-03 | 2019-08-16 | 上海欧本钢结构有限公司 | Square formed fences system and construction method made of steel secondary beam and truss arranged crosswise |
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