CN2608549Y - Communication marker door frame - Google Patents

Communication marker door frame Download PDF

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Publication number
CN2608549Y
CN2608549Y CN 03242329 CN03242329U CN2608549Y CN 2608549 Y CN2608549 Y CN 2608549Y CN 03242329 CN03242329 CN 03242329 CN 03242329 U CN03242329 U CN 03242329U CN 2608549 Y CN2608549 Y CN 2608549Y
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CN
China
Prior art keywords
column
door frame
crossbeam
traffic sign
web member
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 - Fee Related
Application number
CN 03242329
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Chinese (zh)
Inventor
贾日学
汤文杰
黄文机
白书锋
石红星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Zhongluan Traffic Technological Co., Ltd.,
Original Assignee
BEIJING SHEHUADA TRAFFIC ENGINEERING TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date 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 date listed.)
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Priority to CN 03242329 priority Critical patent/CN2608549Y/en
Application granted granted Critical
Publication of CN2608549Y publication Critical patent/CN2608549Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to a support device for road sign, particularly relating to a door frame for road sign. The device is characterized in that a truss type structure is adopted; a beam and a column is connected through an arc structure, which increases the span of the door frame and improves the overall stability. Two columns are inclined towards the inside of the door frame to the vertical direction. The cross section of the columns are rectangles of different sizes with each larger than that of the lower one, which increases the strength of the frame door and improves the stability. The column and the beam and the column segments are jointed. The utility model provides a door frame for road sign, which is of light weight, low steel consumption, high strength, high stability, large span and good appearance.

Description

The traffic sign door frame
Technical field
The utility model belongs to a kind of road sign braced structures, particularly a kind of traffic sign door frame.
Background technology
Existing traffic sign door frame adopts two trabeations mostly, the box structure that its crossbeam and column all adopt channel-section steel and steel plate butt joint to form, and this dead load is big, the waste steel, and also the footpath of striding of door frame is restricted.
The patent No. is that the Chinese utility model patent of ZL00243576.4 discloses a kind of traffic sign door frame that adopts truss structure.As illustrated in fig. 1 and 2, this traffic sign door frame comprises column 1, crossbeam 2 and basic lower margin 8, and the cross section of column 1 wherein is a rectangle, and four jiaos of rectangle is four limbs, between adjacent two limbs web member 6 is arranged; The cross section of crossbeam 2 also is a rectangle, four angles of this rectangle are respectively two upper chords and two lower chords 4, all rod members are round steel, and the web member 6 between per two chord members or the limb is a undulatory whole round steel of jack-knife, and the layout of four limbs or last lower chord and web member is symmetrical.
This traffic sign door frame is compared with the traffic sign door frame of above-mentioned box structure, owing to adopted truss structure, so weight saving.But owing at right angles is connected between its crossbeam and the column, it uses striding on the footpath and has been subjected to certain limitation, strides the footpath because increase door frame, and satisfies intensity and stability requirement, will strengthen the size of steel, and this makes the weight increase of door frame again.On the other hand, because the column of this door frame is prismatic, so its stability is still waiting to improve.
If span is very big, the crossbeam of this door frame is built in sections, and connects by flange between each section.The weight that this has also increased door frame has reduced the intensity of door frame, and has influenced the outward appearance of door frame.
The utility model content
The purpose of this utility model will overcome above-mentioned shortcoming exactly, provides that a kind of in light weight, steel consume less, structural strength is big, stability is high, stride the big and good traffic sign door frame of appearance effect in footpath.
Above-mentioned door frame of the present utility model is realized by the improvement to above-mentioned ZL00243576.4 utility model patent, this improvement is mainly in the following aspects: at first, it between crossbeam and the column arc transition, make Load Transfer direct like this, and increased door frame stride the footpath, improved the door frame resistance to overturning; Secondly, each column and vertical direction are an angle that tilts in door frame, two column symmetries, promptly, above-mentioned angle of inclination size is identical, and each cross section of column is a rectangle not of uniform size, and its size increases from top to bottom continuously gradually, so both increase the intensity of door frame, increased the stability of door frame again.
When the crossbeam span is big, the crossbeam segmentation is made, then by being welded to connect.Like this, intensity and appearance effect all increase than prior art.
First embodiment of traffic sign door frame of the present utility model comprises column, crossbeam and basic lower margin, it adopts truss structure on the whole, all rod members that constitute truss are round steel, the cross section of crossbeam is a rectangle, four angles of rectangle are respectively upper chord and lower chord, and top two is upper chord, and following two is lower chord, between the last lower chord web member is arranged, and adopt the symmetric arrangement form.Traffic sign door frame of the present utility model is characterised in that: adopt arc transition between described crossbeam and the column, and be welded to connect with butt joint.Each column and vertical direction are an angle that tilts in door frame, two column symmetries, that is and, above-mentioned angle of inclination size is identical.Preferably angle is, the inboard angle with the road surface of column is 80 degree, and the angle on the column outside and road surface is 72 degree.
Further form of implementation of the present utility model comprises the further improvement of column, that is, the cross section of column is a rectangle, and the size of each rectangle changes on short transverse continuously, from top to bottom, increases gradually from high to low in other words.Lower chord extends to the door frame column on the crossbeam, forms the column four limbs, establishes web member and support bar between four limbs, and adopts the symmetric arrangement form.
In the trussed construction of above-mentioned column and crossbeam, web member can be a undulatory whole round steel of V-arrangement.
Another kind of form of implementation is to adopt straight web member and diagonal web member to connect and compose space truss.
When the door frame span is big, the crossbeam sectional making, and adopt butt joint to be welded to connect.
Similar in the basic lower margin of traffic sign door frame of the present utility model and the ZL00243576.4 utility model, it comprises four round steel, the bottom of every round steel is a U-shaped crotch upwards, cast in the concrete foundation, the top of every round steel is connected with a flange flange connecting that is used for each column lower end, there is connecting rod to be connected between each flange flange adjacent, also has a connecting rod to connect between the flange of at least one diagonal with both sides.
The lower surface structure of traffic door frame column of the present utility model also to the ZL00243576.4 utility model in similar, promptly, the lower port of each column four limbs round steel has a flange respectively, there is connecting rod to be connected between each flange flange adjacent, also has a connecting rod to connect between the flange of at least one diagonal with both sides.
The basis lower margin is connected with high-strength bolt by flange with column.The oval flange of preferred employing, each flange has two connecting bolt holes.
All adopt between the column of traffic door frame column of the present utility model and the crossbeam and between each segmentation column and be welded to connect.
Description of drawings
Fig. 1 is the front view of traffic sign door frame of the prior art.
Fig. 2 is the axis side view of the trussed construction of the crossbeam of traffic sign door frame of the prior art or column.
Fig. 3 is the front view of traffic sign door frame of the present utility model.
Fig. 4 is the front view of the crossbeam changeover portion in the form of implementation of the present utility model shown in Figure 3.
Fig. 5 is the both ends of the surface view of crossbeam changeover portion shown in Figure 4.
Fig. 6 is the front view of the another kind of form of implementation of traffic sign door frame of the present utility model.
Wherein: the 1-column; The 2-crossbeam; The 3-sign board; The 41-upper chord; The 42-lower chord; 5-column four limbs; The 6-web member; The straight web member of 61-; The 62-diagonal web member; 8-basis lower margin; The 9-changeover portion; Support between the 91-upper chord; Support between the 92-lower chord; Support between the last lower chord of 93-; 94 diagonal angles support.
The specific embodiment
As shown in Figure 3, traffic sign door frame of the present utility model comprises column 1, crossbeam 2 and basic lower margin 8, and it adopts truss structure on the whole, and all rod members that constitute truss are round steel.The crossbeam of the traffic sign door frame in the utility model is with of the prior art identical, and its cross section is a rectangle, is made up of upper chord 41, lower chord 42, web member 6, and adopts the symmetric arrangement form.Adopt arc transition between described crossbeam and the column, and be welded to connect with butt joint, each column and vertical direction are an angle that tilts in door frame, two column symmetries, that is and, above-mentioned angle of inclination size is identical.Preferably angle is, the inboard angle with the road surface of column is 80 degree, and the angle on the column outside and road surface is 72 degree.
As shown in Figure 3, crossbeam 2 is a changeover portion 9 with the junction of column 1.As Fig. 4, shown in Figure 5, on this changeover portion, except comprising above-mentioned going up lower chord and the web member, also comprise on perpendicular to the cross section of the crossbeam longitudinal axis support 91 between upper chord, support 92 between lower chord, on support between lower chord 93 and the diagonal angle support 94.
As shown in Figure 3, further form of implementation of the present utility model comprises the further improvement of column, that is, the cross section of column is a rectangle, and the size of each rectangle changes on short transverse continuously, from top to bottom, increases gradually from high to low in other words.Lower chord extends to the door frame column on the crossbeam, forms column four limbs 5, establishes web member 6 between four limbs, and adopts the symmetric arrangement form.In the trussed construction of above-mentioned crossbeam and column, described web member 6 can be a undulatory whole round steel of V-arrangement.
As shown in Figure 6, another kind of form of implementation is, adopts the trussed construction that is connected and composed above-mentioned crossbeam and column by straight web member 61 and diagonal web member 62 and four limbs and chord member, and this is common practise in the art.
Similar in the lower surface structure of traffic door frame column of the present utility model and the ZL00243576.4 utility model, promptly, lower port at the column four limbs has a flange respectively, there is connecting rod to be connected between each flange flange adjacent, also has a connecting rod to connect between the flange of at least one diagonal with both sides.
Basis lower margin 8 comprises four round steel, these four round steel are connected with main muscle in the column bottom by flange respectively, the bottom of the round steel of every pile foundation lower margin is a U-shaped crotch upwards, cast in the concrete foundation, the top of every round steel is connected with a flange, there is connecting rod to be connected between each flange flange adjacent, also has a connecting rod to connect between the flange of at least one diagonal with both sides.
The basis lower margin is connected with high-strength bolt by flange with column.The oval flange of preferred employing, each flange has two connecting bolt holes.
The utility model also can adopt prefabricated stand column and prefabricate crossbeam, between crossbeam and the crossbeam, between crossbeam and the column and all adopt to dock between each segmentation and be welded to connect, and reach the one-level welding standard, in work progress, crossbeam is carried out the oppositely pre-height of throwing by the dead load amount of deflection.
For traffic sign door frame of the present utility model is described better, introduce a specific embodiment below.
A. structure: door frame adopts all steel space truss structure form, and truss element column and truss element crossbeam are 4, adopt straight web member and diagonal web member to be linked to be space truss; Adopt circular arc to link to each other between door frame column and the crossbeam;
Size: road two heel post clear distance 56m, inner column inclination angle 10 degree, column and crossbeam joint arc radius R=3.66m, free height 7m under the crossbeam, the high 1m of beam structure, wide 1m, long 48m, be divided into 32 sections, the long 1.5m of each sections, portal frame is striden footpath=50m, totally 8 of sign boards, every 160kg, wide 3.0m, high 2.5m;
B. material: the material of employing is the Q345 steel; Column and crossbeam adopt round steel φ 50mm; The crossbeam web member adopts seamless steel pipe φ 32mm, wall thickness t=4mm; The column web member adopts round steel φ 40mm
C. design load:
C.1 structure gravity: steel ρ=7.85t/m 3, every 160 of sign board;
C.2 wind load: wind velocity U=35m/s;
C.3 temperature: structural entity heats up or lowers the temperature 30 degree;
The portal frame computation schemes result of present embodiment is as follows:
The member section characteristic:
Column, crossbeam---area A=1.963 * 10 -3m 2, moment of inertia I=3.068 * 10 -7m 4,
Resistance moment W=1.227 * 10 -5m 3
Crossbeam web member---area A=3.52 * 10 -4m 2, moment of inertia I=3.52 * 10 -8m 4, support
Anti-square W=2.20 * 10 -6m 3
Column web member---area A=1.257 * 10 -3m 2, moment of inertia I=1.257 * 10 -7m 4,
Resistance moment W=6.280 * 10 -6m 3
Dead load result is as follows:
Calculate load: dead load+sign board weight;
Malformation: mid-span deflection 7.07cm;
Stress distribution:
σmin＝-76.2Mpa， σmax＝70.6Mpa。
Dead load+wind carries:
Mark plate institute wind-engaging carries: F wb = γ 0 γ Q ( 1 2 ρ CV 2 ) ( W b × H b ) / 1000
In the formula: F WbMark plate institute wind-engaging carries kN;
γ 0, γ Qγ 0Be coefficient for importance of structure, be taken as 1.0; γ QBe variable lotus
Carry (being mainly wind carries) partial safety factor, adopt 1.4;
ρ atmospheric density is generally got 1.2258N.s 2.m -4
The C wind pressure coefficient, mark plate C=1.2;
The V wind speed, m/s, should select for use on the more spacious smooth ground, locality from
It is on average maximum that ground level 10m statistics gained was met 10min in 30 years one
Air speed value.The V value must not be less than 20m/s;
W bThe width of mark plate, m;
H bThe height of mark plate, m.
In like manner, column, crossbeam, web member institute wind-engaging carry and are:
F wp = γ 0 γ Q ( 1 2 ρ CV 2 ) ( W p × H p ) / 1000
In the formula: F WpColumn, crossbeam, web member institute wind-engaging carry kN;
The C wind pressure coefficient, tubular type cross section C=0.8;
W pThe width of column, crossbeam, web member windward side, m;
H pThe height of column, crossbeam, web member windward side, m, attention should be detained
Remove the part of being blocked by mark plate;
Other parameter meanings are the same.
Calculated by above-mentioned formula and can get every block mark plate institute wind-engaging and carry and be 9.46kN, mean allocation is to up and down on totally 4 nodes of fixed signal plate during Wind Resistant Calculation.
The every linear meter(lin.m.) of column and crossbeam institute wind-engaging carries and is 0.042kN, and the every linear meter(lin.m.) of web member institute wind-engaging carries and is 0.0269kN, during Wind Resistant Calculation above-mentioned load is assigned on the respective nodes.
Malformation:
Span centre lateral deformation 34.2cm, Δ L/L=1/169＜1/150.
As the above analysis, traffic sign door frame of the present utility model has bigger strength and stiffness, carry under the effect at least favorable load combined dead load+wind, and web member between column, crossbeam and crossbeam, web member all can satisfy intensity and stability requirement between column.

Claims (8)

1. traffic sign door frame, comprise column (1), crossbeam (2) and basic lower margin (8), it adopts truss structure on the whole, column (1) is made up of four limbs (5) and web member (6), crossbeam (2) is by upper chord (41), lower chord (42) and web member (6) are formed, and adopt the symmetric arrangement form, it is characterized in that: adopt arc transition between described crossbeam and the column, and employing is welded to connect, each column and vertical direction are an angle that tilts in door frame, two column symmetries, that is, above-mentioned angle of inclination size is identical, the cross section of column is a rectangle, the size of each rectangle changes on short transverse continuously, from top to bottom, increases gradually from high to low in other words.
2. traffic sign door frame as claimed in claim 1 is characterized in that: lower chord extends to the door frame column on the crossbeam, forms the column four limbs.
3. traffic sign door frame as claimed in claim 2 is characterized in that: the inboard angle with the road surface of column is 80 degree, and the column outside is 72 degree with the angle on road surface.
4. traffic sign door frame as claimed in claim 3, it is characterized in that: described crossbeam comprises the changeover portion that it is connected with described column, this changeover portion perpendicular to the cross section of the crossbeam longitudinal axis on also comprise between upper chord supporting and support (92) between (91), lower chord, go up and support (93) between lower chord and the diagonal angle supports (94).
5. traffic sign door frame as claimed in claim 4 is characterized in that: on the crossbeam between lower chord in web member, the column plane the first two limb and the back two limb web members be a undulatory whole round steel of V-arrangement.
6. traffic sign door frame as claimed in claim 3 is characterized in that: the trussed construction of described column and crossbeam is formed by connecting with four limbs and chord member by straight web member (61) and diagonal web member (62).
7. as the traffic sign door frame of claim 5 or 6, it is characterized in that: the lower port of each column four limbs has a flange respectively, has connecting rod to be connected between each flange flange adjacent with both sides, also has a connecting rod to connect between the flange of at least one diagonal.
8. as the traffic sign door frame of arbitrary claim among the claim 1-7, it is characterized in that: between crossbeam and the crossbeam, between crossbeam and the column and all adopt to dock between each segmentation and be welded to connect.
CN 03242329 2003-03-24 2003-03-24 Communication marker door frame Expired - Fee Related CN2608549Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03242329 CN2608549Y (en) 2003-03-24 2003-03-24 Communication marker door frame

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Application Number Priority Date Filing Date Title
CN 03242329 CN2608549Y (en) 2003-03-24 2003-03-24 Communication marker door frame

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Publication Number Publication Date
CN2608549Y true CN2608549Y (en) 2004-03-31

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114855667A (en) * 2022-06-21 2022-08-05 中交公路规划设计院有限公司 Modularized multifunctional integrated traffic portal frame and design method and installation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114855667A (en) * 2022-06-21 2022-08-05 中交公路规划设计院有限公司 Modularized multifunctional integrated traffic portal frame and design method and installation method thereof
WO2023246476A1 (en) * 2022-06-21 2023-12-28 中交公路规划设计院有限公司 Modular multifunctional integrated traffic gantry, and design method and mounting method therefor

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: BEIJING ZHONGLU AN TRAFFIC TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: SHENHUADA TRAFFIC ENGINEERING TECHNOLOGY DEVELOPMENT CO., LTD., BEIJING

Effective date: 20050624

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20050624

Address after: The 100071 Beijing Seahawks Fengtai District Science City Road No. 3

Patentee after: Beijing Zhongluan Traffic Technological Co., Ltd.,

Address before: The 100071 Beijing Seahawks Fengtai District Science City Road No. 3

Patentee before: Beijing Shehuada Traffic Engineering Technology Development Co., Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20040331