CN1263580A

CN1263580A - Structural steel elements

Info

Publication number: CN1263580A
Application number: CN99800470A
Authority: CN
Inventors: 迈克尔·D·海斯
Original assignee: ANDREW SATCOM AFRICA
Current assignee: ANDREW SATCOM AFRICA
Priority date: 1998-04-30
Filing date: 1999-04-29
Publication date: 2000-08-16
Anticipated expiration: 2019-04-29
Also published as: CN1128916C; ZA983648B; BR9906317A; WO1999055989A1

Abstract

A structural element for a structure, the element comprising an angle steel element and one or more crimped joint regions along the length of the angle steel element, arranged in such a way that where one or more bracing members is joined to the angle steel element a crimped region is pressed into the angle steel element, thereby decreasing the angle of the angle steel element, thus facilitating a cleatless joint between bracing member and support member. A three-legged structure mainly manufactured from such elements may be used as a tower such as telecommunication or other communication towers.

Description

Structural steel elements

The present invention relates to structural member, in particular for the structural member of construction of buildings structural element.

Building is known several different geometries, is built by the material that has nothing in common with each other, and the application purpose that has nothing in common with each other is arranged.Patent specification utilization structure one speech, should be understood to comprise two between the supporting-point truss, pipe bridge, work suspension bridge, especially as the structure of tower, such as antenna tower, communication tower in other words.

Four leg structures with four structural element are well-known, and usually adopt the structural member of angle steel rolling profile form.But this structural member is inapplicable at construction three leg buildings, will use the tubular-shaped structures material of low-cost benefit here.Another problem relevant with adopting the tubular-shaped structures material be, keep in repair in the open air, when for example welding, can make anticorrosive coat for example the zinc coat on the tubular structural member inner surface be damaged.For the destruction of inner surface, carry out subsequent treatment owing to can not enter the inside, the result has increased the possibility of getting rusty, thereby has formed a potential problem area.It also is known adopting angle steel to do structural member.The advantage of angle member is, if when requiring building maintenance to the field, all surfaces can both be handled.Yet a shortcoming of angle member is, comprise that to the bonding pad of supporting member a cleat forms syndeton at the bracing member.This cleat provides a potential corrosion development area, and has also increased the anticorrosion problem that is associated with field maintenance.And establishing cleat at the syndeton place has increased the expense that is associated with material cost and labour cost.

Thereby requiring ideally is to take some measures, and makes angle steel that the means of low-cost high-efficiency can be provided, and angle steel both had been used on the structural member, also is used on the supporting member of the screen work supporting in the building construction.

According to the present invention, provide a kind of structural member of building, include:

An angle member; With

One or more to be along this angle member bonding land of curling longitudinally,

Arrange to such an extent that make at one or more bracing member and be connected to the angle member part, the district that circumnutates is pressed in the angle member, thereby reduced the angle of angle steel, the so just no cleat formula connection of formation between bracing member and supporting member.

According to a preferred embodiment of the present invention, provide a kind of structural elements angle made from angle steel.

According to a further advantageous embodiment of the invention, provide a kind of structural member of supporting construction, wherein, the bonding land of curling is between 90 ° and 45 °, and preferably between 80 ° and 50 °, most preferably, the curling district of angle iron component is 60 °.

Though the angle steel that can use no bonding land to curl, this need utilize cleat, builds the labour thereby increase it.A method that overcomes this problem is to use a kind of known curved steel, just the rolling angle iron member that was 90 ° originally is bent to the steel member at 60 ° of angles.Crooked 90 ° steel member requires to use big forging press in the enterprising line bend of member total length.The forging press that can carry out this bending costs an arm and a leg, and obviously unactual to being used in the field.These limitations can the part is curling to be overcome by carrying out in the bonding land between screen work bracing member and supporting member.Because it is so heavy that these specific forging presses are unlike in the desired forging press of the enterprising line bend of steel member total length, use under the condition in the open air when needed, but also cost efficient more.

And, according to the present invention, provide the method for making the structural element of supporting construction with angle steel, wherein, one or more lengthwise of distinguishing along structural element that curls is pressed into angle member.The accompanying drawing summary

The present invention with way of example the present invention is described in order more to be expressly understood referring now to the following drawings.In the accompanying drawing:

Fig. 1 is the A-A sectional view according to bonding land between bracing member of the present invention and the supporting member;

Fig. 2 is the lateral view according to bonding land between bracing member of the present invention and the supporting member;

Fig. 3 is the lateral view according to bonding land between bracing member of the present invention and the supporting member;

Fig. 4 is the lateral view according to bonding land between bracing member of one of technology formerly and the supporting;

Fig. 5 is the sectional view according to bonding land between bracing member of one of technology formerly and the support;

Fig. 6 is the sectional view in one of the structural member district of curling, shown in curl that angle reduces in the district;

Fig. 7 is the lateral view according to antenna tower of the present invention or other tower;

Fig. 8 and Fig. 9 are the plan view according to antenna tower of the present invention or other tower.

In a form of implementation of the present invention, as depicted in figs. 1 and 2, a structural member 10 has two bracing spares 12 and 14 that are connected to structural member 10.The curling district 16 (as shown in Figure 2) of structural member 10 is changed to 60 ° of angles in the district 16 of curling through

transition region

18 and 20 from 90 ° of angles in the non-crimping district of supporting member 22 and 24.The bracing member is only required and is pruned and impact curling district 16 with fit structure spare 10.

According to another aspect of the present invention as shown in Figure 3, show a bonding land before pruning and impacting bracing member 12 and 14.Shown in structural member 10 be before curling in bonding land 16.

Fig. 4 and Fig. 5 represent the basis joint 26 of one of technology type formerly, and it has cleat 30 (being shown in Fig. 5), connect bracing member (not shown) on it.The a plurality of pegs 28 of cleat 30 usefulness are connected on the supporting member 32.

Fig. 6 illustrates the sectional view of an angle steel structural member 36, and original angle is 90 ° before curling, and is reduced to 60 ° angle at 34 these angles, district of curling.

Fig. 7 shows the lateral view of one three leg antenna tower 70, and screen work bracing spare 72 is connected on the structural member 74 of tower 70.

Fig. 8 and the plan view that Figure 9 shows that three leg towers shown in Figure 7.

The one of ordinary skilled in the art should be clear, though only provided some embodiment of the present invention here, other modification of the present invention and/or distortion can also be arranged.These modifications and distortion should be thought and fall into the spirit and scope of the present invention.

Claims

1. building structural member, contain:

An angle member; With

One or more is characterized in that along the curling bonding land of angle member lengthwise,

Joint at one or more bracing spare and angle member is pressed into the district of curling in angle member.

2. according to the structural member of claim 1, it is characterized in that it is made with angle steel.

3. according to claim 1 and 2 each structural members, it is characterized in that the curling district of structural member is reduced to 60 ° of angles.

4. according to each structural member of claim 1 to 3, it is characterized in that the transition region in the district of curling is by connecting one or more bracing spare supporting in transition region.

5. according to each structural member of claim 1 to 4, it is characterized in that, reduce the angle of angle steel structural member in the curling district of bonding land, so just between one or more bracing spare and structural member, form the connection of no cleat formula.

6. the method with the structural member of angle member manufacturing supporting building is characterized in that, along the lengthwise of structural member one or more district of curling is compressed into angle member.

7. support the method for the structural member of building according to the manufacturing of claim 6, it is characterized in that curling district is reduced to 60 ° of angles.