CN217054404U - Double-angle steel chord arching control device - Google Patents
Double-angle steel chord arching control device Download PDFInfo
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- CN217054404U CN217054404U CN202120910066.XU CN202120910066U CN217054404U CN 217054404 U CN217054404 U CN 217054404U CN 202120910066 U CN202120910066 U CN 202120910066U CN 217054404 U CN217054404 U CN 217054404U
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Abstract
The utility model discloses a double angle steel chord member arching control device, which comprises two supports (1), a first vertical support (2), a second vertical support (9), a top support (3), a hydraulic jack (4), a horizontal connecting plate (5), two vertical pressing plates (6) and an arching height control plate (8), wherein the first vertical support (2) and the second vertical support (9) are connected with the two supports (1) or a construction platform bottom plate between the two supports (1), and the first vertical support (2) and the second vertical support (9) are both connected with the top support (3); the hydraulic jack (4) is connected with the top support (3); the horizontal connecting plate (5) is connected with the hydraulic jack (4) and the two vertical pressing plates (6); the double-angle steel lower chord (7) to be arched is placed between the two supports (1) and the two vertical pressing plates (6); an arching height control plate (8) is connected between the two supports. The utility model discloses structural design is ingenious, processing simple manufacture, arching construction simple operation, safe firm, repeatedly usable.
Description
Technical Field
The utility model belongs to the technical field of the component processing preparation, concretely relates to double angle steel chord member arching controlling means.
Background
The design specification stipulates that the camber is 1/500 of span L when the lower chord is not zigzag for a triangular roof truss with the span L being more than or equal to 15 m or a trapezoidal or parallel chord roof truss with the span L being more than or equal to 24 m; angle steel roof truss is the bent structure common form, generally adopts double angle steel to link as an organic wholely in order to add the rigidity through welding several rectangle cushion blocks between the limb back, and the existing arching mode of angle steel roof truss is: after the roof truss big sample drawing is released on the construction operation platform, the roof truss chord member and the big sample line are arched in a superposition mode by adopting a heating and jack external force application combination method.
Camber in the existing angle steel roof truss camber mode can not be accurately controlled, camber deviation of each roof truss is large, operators are more, procedures are complex, construction efficiency is low, camber quality and camber forming in a low-temperature environment in winter are difficult to control, reworking treatment and heating (material crystal structure changes) can cause original damage to components, the components are enabled to generate phenomena of primary bending, primary eccentricity and secondary stress, stress concentration possibly increases, hidden danger is caused to structural safety, structural safety storage is reduced, and construction progress is restricted to be smoothly carried out on the premise of guaranteeing quality.
SUMMERY OF THE UTILITY MODEL
Problem to among the prior art, the utility model provides a structural design is ingenious, processing simple manufacture, arching construction simple operation, safe firm, repeatedly usable's double angle steel chord member arching controlling means.
The utility model adopts the following technical proposal:
the double-angle-steel chord arching control device is characterized by comprising two supports (1), a first vertical support (2), a second vertical support (9), a top support (3), a hydraulic jack (4), a horizontal connecting plate (5), two vertical pressing plates (6) and an arching height control plate (8), wherein the bottom of the first vertical support (2) is connected with the two supports (1) or a construction platform bottom plate between the two supports (1), the bottom of the second vertical support (9) is connected with the two supports (1) or the construction platform bottom plate between the two supports (1), the top of the first vertical support (2) and the top of the second vertical support (9) are positioned on the same horizontal plane, and the top of the first vertical support (2) and the top of the second vertical support (9) are connected with the top support (3); the top of the hydraulic jack (4) is connected with the bottom of the top support (3); the upper surface of the horizontal connecting plate (5) is connected with the lower surface of a hydraulic cylinder of the hydraulic jack (4), and the lower surface of the horizontal connecting plate (5) is connected with the two vertical pressing plates (6); the two vertical pressing plates (6) are positioned above the tops of the two supports (1), and the double-angle steel lower chord (7) to be arched is inserted between the tops of the two supports (1) and the two vertical pressing plates (6); an arch-raising height control plate (8) is connected between the two supports (1).
The double-angle steel chord arching control device is characterized in that the two supports (1) are parallel to each other; the double angle steel lower chord (7) to be arched is mutually vertical to the support (1); the two vertical pressing plates (6) are positioned in the middle of the to-be-arched area of the to-be-arched double-angle steel lower chord (7).
The double-angle steel chord arching control device is characterized in that the heights of the two vertical pressing plates (6) are greater than the limb heights of a double-angle steel lower chord (7) to be arched; the widths of the two vertical pressing plates (6) are the same as the limb widths of the lower chord (7) of the double angle steel to be arched.
The double-angle steel chord arching control device is characterized in that the support (1) is an I-shaped steel support; the first vertical support (2) and the second vertical support (9) are channel steel vertical supports.
The double-angle-steel chord arching control device is characterized in that the outer surface of a web plate of the first vertical support (2) is opposite to the outer surface of a web plate of the second vertical support (9).
The utility model has the advantages of that: the utility model discloses device structural design is ingenious, processing simple manufacture, and arching construction simple operation, safe firm, repeatedly usable has practiced thrift construction cost, has improved the efficiency of construction, has avoidd the problem that the heating produced initial destruction, has ensured the smooth implementation of construction progress quality, has reached the social economic benefits of safe construction.
Drawings
FIG. 1 is a schematic structural diagram of the device of the present invention;
FIG. 2 is a cross-sectional view along the A-A direction of the utility model when two vertical braces are connected with two supports;
fig. 3 is a cross-sectional view along the a-a direction when the two vertical braces of the present invention are connected to the bottom plate of the construction platform between the two supports.
Detailed Description
Referring to fig. 1-3, the utility model discloses a double angle steel chord member arching control device, including two supports 1, first upright brace 2, second upright brace 9, shore 3, hydraulic jack 4, horizontal connecting plate 5, two vertical pressing plates 6, arching height control panel 8, the bottom of first upright brace 2 is connected with one end of two supports 1, the bottom of second upright brace 9 is connected with the other end of two supports 1, also can be fixed in construction platform bottom plate between two supports 1 with the bottom of first upright brace 2 and the bottom of second upright brace 9 symmetry welding, the top of first upright brace 2 and the top of second upright brace 9 are located same horizontal plane, the top of first upright brace 2 and the top of second upright brace 9 are all connected with shore 3; the top of the hydraulic jack 4 is connected with the bottom of the top support 3; the upper surface of the horizontal connecting plate 5 is connected with the lower surface of a hydraulic cylinder of the hydraulic jack 4, and the lower surface of the horizontal connecting plate 5 is connected with two vertical pressing plates 6; the two vertical pressing plates 6 are positioned above the tops of the two supports 1, and the lower chord 7 of the double angle steel to be arched is inserted between the tops of the two supports 1 and the two vertical pressing plates 6; an arching height control plate 8 is connected between the two supports 1. The two supports 1 are parallel to each other; the lower chord 7 of the double angle steel to be arched is mutually vertical to the support 1; the two vertical pressing plates 6 are positioned in the middle of the to-be-arched area of the to-be-arched double-angle steel lower chord 7 and are arranged in parallel at intervals. The height of the two vertical pressing plates 6 is greater than the limb height of the lower chord 7 of the double angle steel to be arched; the widths of the two vertical pressing plates 6 are the same as the limb widths of the lower chord 7 of the double angle steel to be arched. The support 1 is an I-shaped steel support; the first vertical support 2 and the second vertical support 9 are channel steel vertical supports. The outer surface of the web of the first upright brace 2 is opposite to the outer surface of the web of the second upright brace 9. The distance between the two vertical pressing plates 6 is slightly larger than the sum of the thickness of the double backs of the lower chord 7 of the double angle steel to be arched.
The utility model discloses the realization of device is as follows:
1) cutting two sections of I-shaped steel with certain length and rigidity, and welding and fixing bottom surfaces of bottom flanges of the two sections of I-shaped steel which are symmetrically parallel (vertical to the direction of the bottom chord of the angle steel roof truss) with a certain distance (convenient for the bottom chord of the angle steel roof truss to be pressed downwards and reversely arched) on the area of the double-angle steel roof truss bottom chord part needing arching of the construction operation platform as an I-shaped steel double support 1;
2) according to the arch camber height required by the double-angle steel lower chord 7 to be arched, an arch camber control plate 8 is horizontally welded and additionally arranged on the inner sides of two vertical webs of two supports 1 which are symmetrically arranged in parallel (namely the distance from the upper surface of the upper flange of the I-shaped steel double support 1 to the arch camber horizontal control plate 8 is the arch camber height required by the double-angle steel lower chord 7);
3) two channel steels are symmetrically welded and fixed on the upper flange surfaces of the two supports 1 (taking the distance between the two supports 1 as the center) or on a construction platform bottom plate between the two supports 1 in the vertical direction (the outer surfaces of webs are opposite) to be used as a first vertical support 2 and a second vertical support 9;
4) a section of channel steel is welded and additionally arranged between the inner sides of the upper ends of the first vertical support 2 and the second vertical support 9 which are symmetrically arranged in the vertical direction to serve as a top support 3;
5) processing and manufacturing a pi-shaped pressing piece formed by welding a horizontal connecting plate 5 and two vertical pressing plates 6 according to the specification and size of a lower chord 7 of the double angle steel to be arched according to the design requirement, wherein the distance between the two vertical pressing plates 6 is slightly larger than the sum of the thicknesses of two limbs of the lower chord 7 of the double angle steel to be arched, and the width of the two vertical pressing plates is consistent with the limb width of the lower chord 7 of the double angle steel to be arched, welding and fixing the upper surface of the horizontal connecting plate 5 of the pi-shaped pressing piece on the lower surface of a pressure cylinder of an electro-hydraulic jack 4, and additionally installing and fixing the electro-hydraulic jack 4 connected with the pi-shaped pressing piece between the lower surface of a channel steel top support 3 (between the inner sides of channel steel vertical supports 2 and 9) and the upper surfaces of two supports 1; and finishing the manufacture of the double-angle steel chord arching control device.
The utility model discloses the application method of device does: firstly, integrally placing a to-be-arched double-angle-steel lower chord 7 integrally connected with welding cushion blocks between limbs and backs in a distance reserved between a pi-shaped pressing piece connected to the lower surface of a pressure cylinder of an electric hydraulic jack 4 and the upper surface of an I-shaped steel support 1, and pushing and pulling forwards and backwards to adjust and position the to-be-pressed position (the to-be-arched double-angle-steel lower chord 7 can be half clamped and fixed); starting a hydraulic jack 4 to press an electric button, pressing a horizontal connecting plate 5 of a pi-shaped pressing piece by a pressing cylinder, pressing an arching position area of a double-limb angle steel lower chord 7 to be arched into a reserved distance of an I-shaped steel support 1 along with two vertical pressing plates 6 which are symmetrical in parallel of the pi-shaped pressing piece, stopping pressing when reaching the upper surface of an arching height horizontal control plate 8 additionally arranged between webs of the I-shaped steel support 1, and enabling the double-limb angle steel lower chord 7 to be arched to meet the arching height requirement required by the design specification; starting a hydraulic jack 4 to lift the electric button, drawing out the lower chord of the double-limb angle steel with the height required by arch camber, inserting and placing another lower chord 7 of the double-limb angle steel to be arched, and completing arch camber pressing construction of the lower chord 7 of the double-limb angle steel to be arched in the project engineering by analogy; and fifthly, assembling and welding the arched double-angle steel lower chord, the roof truss web member and the upper chord.
Claims (5)
1. The double-angle-steel chord arching control device is characterized by comprising two supports (1), a first vertical support (2), a second vertical support (9), a top support (3), a hydraulic jack (4), a horizontal connecting plate (5), two vertical pressing plates (6) and an arching height control plate (8), wherein the bottom of the first vertical support (2) is connected with the two supports (1) or a construction platform bottom plate between the two supports (1), the bottom of the second vertical support (9) is connected with the two supports (1) or the construction platform bottom plate between the two supports (1), the top of the first vertical support (2) and the top of the second vertical support (9) are positioned on the same horizontal plane, and the top of the first vertical support (2) and the top of the second vertical support (9) are connected with the top support (3); the top of the hydraulic jack (4) is connected with the bottom of the top support (3); the upper surface of the horizontal connecting plate (5) is connected with the lower surface of a hydraulic cylinder of the hydraulic jack (4), and the lower surface of the horizontal connecting plate (5) is connected with the two vertical pressing plates (6); the two vertical pressing plates (6) are positioned above the tops of the two supports (1), and the double-angle steel lower chord (7) to be arched is inserted between the tops of the two supports (1) and the two vertical pressing plates (6); an arch-raising height control plate (8) is connected between the two supports (1).
2. The double angle chord arching control device according to claim 1, characterized in that two supports (1) are parallel to each other; the double angle steel lower chord (7) to be arched is mutually vertical to the support (1); the two vertical pressing plates (6) are positioned in the middle of the to-be-arched area of the to-be-arched double-angle steel lower chord (7).
3. The double angle chord arching control device according to claim 1, characterized in that the height of two vertical pressure plates (6) is greater than the limb height of the double angle chord (7) to be arched; the widths of the two vertical pressing plates (6) are the same as the limb widths of the lower chord (7) of the double angle steel to be arched.
4. The double angle chord arching control device according to claim 1, characterized in that the support (1) is an i-steel support; the first vertical support (2) and the second vertical support (9) are both channel steel vertical supports.
5. The camber control device according to claim 4, characterized in that the outer surface of the web of the first upright support (2) is opposite to the outer surface of the web of the second upright support (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120910066.XU CN217054404U (en) | 2021-04-29 | 2021-04-29 | Double-angle steel chord arching control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120910066.XU CN217054404U (en) | 2021-04-29 | 2021-04-29 | Double-angle steel chord arching control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217054404U true CN217054404U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120910066.XU Active CN217054404U (en) | 2021-04-29 | 2021-04-29 | Double-angle steel chord arching control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217054404U (en) |
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2021
- 2021-04-29 CN CN202120910066.XU patent/CN217054404U/en active Active
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