CN2801973Y

CN2801973Y - Small variable slope trilateral angle iron tower

Info

Publication number: CN2801973Y
Application number: CN 200520042379
Authority: CN
Inventors: 蒋韦; 杨华
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-10
Filing date: 2005-06-10
Publication date: 2006-08-02
Anticipated expiration: 2015-06-10

Abstract

The utility model relates to a small variable slope trilateral angle iron tower which adopts a smaller variable slope structure in which the edge on the bottom part of a tower foot is smaller than the height of the tower about 1/10 (B is smaller than H/10). A tower column is made of common standard type angle steel at 90 DEG, a gusset plate is fixedly connected with the tower column vertically and lengthways and then is connected with a transverse rod and an inclined rod through bolts after is folded to be at 15 DEG; small sectional steel is additionally arranged on an edge opening of the angle steel at 90 DEG or between the adjacent gusset plates; a step ladder is arranged in a trilateral plane, a ladder guard ring is arranged on the places of rod members with no protection behind the ladder with the space larger than 800 mm, the step ladder is supported on the transverse rod of the trilateral plane, and a feed line frame is arranged in a small trihedron arranged between the transverse rod and the tower column; the upper part can be provided with an inner and an outer platforms for arts demand.

Description

The sloping triangle angle steel tower of little change

Technical field

The utility model relates to communication with fields such as iron tower and electric power towers, refers to the common angle steel tower of the sloping triangle of a kind of little change especially.

Background technology

At present domestic and international used communication iron tower mainly contains three kinds of forms: the one, and trussed construction quadrangle angle steel tower, the 2nd, trussed construction quadrangle steel tube tower comprises three pipe towers, the 3rd, single-pipe tower.Except the post and telecommunications iron tower, also be used for power transmission tower, petrochemical industry tower.With regard to trussed construction angle steel tower, a kind of is the quadrangle trussed construction, its column foot hem width is about 1/5 of a height, and floor space is bigger, and consumptive material is more, and with outer cat ladder form, 60 ° of angle steel towers of also useful truss triangle material is nonstandard material, special processing or with the reroll of 90 ° of common standard angle steel, material cost height, and the specification kind is incomplete, shortage advantage on cost performance.

Summary of the invention

The purpose of this utility model is to be designed to the sloping communication iron tower of the little change of triangle with common standard type angle steel, column foot bottom hem width b be highly 〉=H/10, the floor space that can dwindle iron tower like this economizes the land resource.

For reaching above-mentioned purpose, the utility model adopts the common standard angle steel, form the trilateral cross section structure, because the mechanics geometrical property of common standard type angle cross section obviously is better than 60 ° of nonstandard angle steel of special type, under equal strength and the stability state, can save steel, and draw materials easily, reduce the secondary operations expense that 90 ° of angle steel rollings become 60 ° of angle steel.Adopt trilateral cross section can save steel more than 20% than quadrangle, and handsome in appearance, easy to make.Iron tower king-post bar is 90 ° of angle steel, and its gusset is answered 15 ° of angles of invagination at king-post bar and cross bar brace junction.For guaranteeing that the king-post rod member does not damage, take gusset to be connected assurance king-post angle steel integrality with king-post angle steel vertical fixing and equal strength stressed, cross bar, brace and gusset bolted on connection are behind 90 ° of angle steel of head tower principal post employing, at Z ₀-Z ₀Direction of principal axis adopts light section to reinforce as ribs.Prevent that 90 ° of common standard angle steel from drawing at king-post, be out of shape under the pressure effect.In the triangle head tower cat ladder is set, the interior cat ladder that width is 300-400mm is established in its position in the triangle inboard, interior cat ladder is bearing on the inboard horizontal cross bar of triangle, vertically be arranged to the basis from little change rupture point cat ladder, for guaranteeing personal security, more than cat ladder cross bar rear space is greater than 800mm, should add the cat ladder guard ring.In interior cat ladder front side, little triangle two sides are provided with the feeder line support, as feeder line, easy access again are installed.Such tower and form of structure have been accomplished simple in structurely, and processing and fabricating and install is easy and conveniently saved material than other angle steel towers, reduces cost, and being is worth the novel product promoted the use of in enormous quantities.

Advantage of the present utility model is: little change slope, 90 ° of angle steel of common standard are made triangle cross section iron tower, and little change slope its root hem width degree b is more than 1/10th of height H, and the b=H/5 floor space of more conventional width is little a lot, saves land resources.Cross bar, brace gusset and king-post are vertically affixed, and the other end is converted into 15 ° of angles and is connected with bolt with the cross bar brace, at the gusset place and 90 ° of angle steel Z ₀-Z ₀Axle place is affixed as ribs with light section, guarantee local stable, in establish catladder and feeder shelf, the fabrication and installation convenient transportation, cost reduces 20%-30%, safe and reliable, moulding is tall and straight beautiful, but large-scale popularization.

Description of drawings

Fig. 1 is the sloping triangle angle steel tower of the little change of a utility model structure chart.

Fig. 2 is Fig. 1 I-I sectional drawing.

Fig. 3 is Fig. 1 II-II sectional drawing.

Fig. 4 amplifies interface chart for Fig. 1 C point.

Fig. 5 is Fig. 4 A-A sectional drawing.

Label declaration in the accompanying drawing:

The sloping triangle angle tower of the little change of 1-; 2-straightway king-post;

The 3-brace; The 4-cross bar;

Cat ladder in the 5-; Cat ladder cross bar in the 51-;

The little change of 6-slope section king-post; 7-iron tower cross section;

8-shaped steel ribs; Cat ladder guard ring in the 9-;

The 10-gusset; The 11-outer platform.

The specific embodiment

The sloping triangle angle steel tower of little change of the present utility model, its king-post adopts 90 ° of angle steel, can save manufacturing cost, also can directly adopt 60 ° of angle steel to make.Now in conjunction with the accompanying drawings the structure of utility model is described further.

The utility model is by king-

post

2,6, cross bar 4, and brace 3 is formed triangle iron tower bodies 1, and vertical affixed and cross bar 4 of its gusset 10 and king-

post

2,6 and brace 3 usefulness bolted on connections form.Iron tower king-

post

2,6 adopts 90 ° of angle steel, its gusset 10 in king-

post

2,6 and cross bar 4, brace 3 junctions to 15 ° of angles of invagination, the equilateral triangle structure at 60 ° of angles of the formation horizontal interior angle of triangle tower body.Because gusset 10 is to 15 ° of angles of invagination, and produce the horizontal component that causes behind 15 ° of flangings, for guaranteeing 90 ° of angle steel cross-directional indeformable (inside or outside), at 90 ° of angle steel, two bead places or 15 ° of gusset 10 places of adjacent two knuckles add and connect a light section ribs (with little angle steel or square tube or pipe or other shaped steel), prevent that 90 ° of angle steel are out of shape under the drawing of king-post, pressure effect.Cat ladder 5 in tower body triangle plane, being provided with; greater than 800mm unprotect rod member place cat ladder guard ring 9 is set at interior cat ladder 5 rear spaces; interior cat ladder 5 is bearing on the cross bar 4 on triangle plane; vertically be arranged to the basis from little change rupture point cat ladder, both sides are provided with the support that feeder line is installed in the little triangle between interior cat ladder 5 front side cross bars 4 and the king-

post

2,6.

It must be noted that above structure is to adopt 90 ° of sloping triangle angle steel towers of little change that angle steel is made, also can directly make the sloping triangle angle steel tower of little change, also belong within the utility model rights protection scope with 60 ° of angle steel.

Claims

1, the sloping triangle angle steel tower of a kind of little change is characterized in that:

Constitute the triangle tower body by king-post, cross bar, brace, its gusset vertical affixed and cross bar, brace with king-post form with bolted on connection.

2, the sloping triangle angle steel tower of little change according to claim 1 is characterized in that: gusset is to 15 ° of angles of invagination.

3, the sloping triangle angle steel tower of little change according to claim 1 is characterized in that:

Add connection one light section ribs at 15 ° of gusset places of 90 ° of adjacent two knuckles of angle steel.

4, the sloping triangle angle steel tower of little change according to claim 1 is characterized in that:

On the inboard horizontal cross bar of the sloping triangle angle steel tower of little change interior cat ladder is set, interior cat ladder front side, little triangle both sides are provided with the support that feeder line is installed.