CN102277999A - Large-section portal steel structure holding pole - Google Patents

Abstract

The invention relates to a large-section door-shaped steel structure holding pole, including the lower section of the steel structure, the standard section, the beam section, the upper section and the base, the lifting block, the steering block, the spreader, the traction rope, the lower section of the steel structure, the standard Section, beam section, and upper section are connected from bottom to top to form a main column. The two parallel main columns and beams of the poles constitute a door-shaped steel structure frame, and the beam sections of the two main columns are hinged together. A crossbeam is hinged to a support beam at the top of the two main columns, and the bottom of the lower section is hinged on the base. The overall structure design of the present invention is scientific and reasonable, has a wide application range, is less restricted by complex terrain conditions, can be extended to the hoisting of wind power generators, and can effectively solve the problem that large hoisting equipment cannot enter the wind power generation site.

Description

Large-section door-shaped steel structure holding pole

technical field

The invention belongs to the field of electric power, and relates to a pole used for erecting iron towers in the construction of UHV transmission lines, in particular to a pole with a large cross-section gate-shaped steel structure. the

Background technique

At present, UHV cable towers (V-shaped, door-shaped) are assembled in different ways at home and abroad. The history of more than 50 years in the power transmission and transformation industry and the accumulation and precipitation of construction experience make the towers of each unit different. , but generally speaking, there are several forms such as integral inverted herringbone holding pole assembly, split hoisting, and overall hoisting in the assembly force cable tower. On the basis of these several hoisting forms, they need to be used separately according to the actual situation. At the same time, due to the limitation of complex terrain, sometimes the assembled hoisted tower parts can only be assembled in allowed places. For example, in the Qinghai-Tibet 750KV tie-line project, the overall inverted herringbone holding pole assembly project is prohibited, and only split hoisting or overall hoisting can be used. the

However, the overall hoisting has the defects of large lifting capacity, unstable lifting, high cost, and easy deformation. Moreover, for most hoisting situations, split hoisting is the main method. However, the existing split hoisting has the disadvantages of low hoisting efficiency, more high-altitude operations, and higher risks. the

Through searching, no published patent documents related to the application of the present invention have been found. the

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a large hoisting machine with high hoisting efficiency, safe and reliable hoisting.

Sectional door-shaped steel structure holding poles. the

The present invention solves its technical problem and is realized by the following technical solutions:

A large-section door-shaped steel structure holding pole, including the lower section, standard section, beam section, upper section and base of the steel structure, lifting block, steering block, spreader, traction rope, the lower section, standard section, and beam of the steel structure The section and the upper section are connected from bottom to top to form a main column. The two parallel main columns and beams of the poles constitute a door-shaped steel structure frame. The beam sections of the two main columns are jointly hinged. A support beam is hinged on the top of the two main columns, and the bottom of the lower section is hinged on the base. the

Moreover, river-crossing pull rods are installed in parallel between the main columns at the lower ends of the beams. the

Moreover, a pair of oblique stay wires are installed on both sides of the main column corresponding to the position of each river-crossing rod, on both sides of the main column on the beam section, and on both sides of the main column on the supporting beam. the

Moreover, two diagonal stay rods are installed on the upper ends of the beam and the main columns on both sides. the

Moreover, the supporting beam is a seamless steel pipe. the

Advantage of the present invention and beneficial effect are:

1. The present invention adopts a gate-shaped steel structure. A crossbeam and a steel pipe support beam are arranged on the upper parts of the two main columns. Three river-crossing tie rods are arranged between the two main columns. Both are hinged with the main column, and the bottom end of the main column is a hinge seat. The hinged installation at two positions overcomes the problem of the two main columns due to the foundation height difference and the foundation sinking height difference during hoisting. The overall structure design is scientific and reasonable, which can fully realize the overall hoisting of the main column of the guyed tower and the overall hoisting of the beam. the

2. The present invention has a wide application range and is less limited by complex terrain conditions. It can be extended to the hoisting of wind power generators, and can effectively solve the problem that large hoisting equipment cannot enter the wind power generation site. the

Description of drawings

Fig. 1 is the structural front view of the present invention. the

Detailed ways

The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this. the

A large-section door-shaped steel structure holding pole, including the lower section 10 of the steel structure, the standard section 8, the beam section 6, the upper section 3 and the base 11, the lifting block 16, the steering block 15, the spreader 12, the traction rope 14, The lower section, standard section, beam section, and upper section of the steel structure are connected from bottom to top to form the main column. The pole is a gate-shaped steel structure frame formed by two parallel main columns and beams. Hinge plate 5 is used to hinge crossbeam 4 between sections, and a support beam 1 is hinged at the top of the two main columns, and the support beam is a seamless steel pipe; the bottom end of the lower section is hinged on the base. the

Install a lifting block at a certain part of the lower section of the beam (the position can be set according to the actual situation). The lifting block lifts the iron tower components through the spreader. The power of the pulley block comes from the traction rope passing through the steering block. Or other traction equipment connects; Lifting tackle is two before and after, and present embodiment accompanying drawing only shows one, and another is behind it. the

The main column and the base, the main column and the crossbeam, and the main column and the support beam of the present invention are all in the form of hinged installation, so that the hoisting operation at a certain angle can be realized without being restricted by the site. In order to stabilize the whole structure, river-crossing tie rods 9 are installed in parallel between the main columns at the lower ends of the beams, and there are three in the accompanying drawings of this embodiment. the

In order to stabilize the entire structure, a pair of stay wires 7 are installed on both sides of the main column corresponding to the position of each river crossing tie rod, on both sides of the main column of the beam section, and on both sides of the main column of the supporting beam. the

In order to maintain the strength of the beam, two diagonal stay rods 2 are also installed on the upper ends of the beam and the main columns on both sides. the

Specific examples of the present invention:

The length of the main pole holding pole is 59.6 meters, the section is 1000*1000mm, the main material is Q345, and the auxiliary material is q235. the

The beam length of the pole is 5.8 meters, the section is 1000*1000mm, the main material is Q345, and the auxiliary material is q235. the

The support beam is a seamless steel pipe with a diameter of 120*5 and a total length of 6.3 meters. the

The height of the beam is 55 meters, and there are three tie rods for crossing the river between the two main columns. the

Claims (5)

1. one kind big section door shape steel work pole, it is characterized in that: hypomere, standard paragraphs, beam segments, epimere and the pedestal, lifting tackles, corner block, suspender, the pull rope that comprise steel work, the hypomere of steel work, standard paragraphs, beam segments, epimere connect as one the formation principal post from bottom to top, the door shape steel structure frame form that two parallel principal posts of described pole and crossbeam constitute, common hinge dress crossbeam between the beam segments of two principal posts, hinge is adorned a brace summer on the top of two principal posts, and the bottom hinge of hypomere is contained on the pedestal.

2. big section door shape steel work pole according to claim 1 is characterized in that: the parallel pull bar that crosses the river that is equipped with between the principal post of crossbeam lower end.

3. big section door shape steel work pole according to claim 1 is characterized in that: in the principal post both sides of corresponding each draw rod positions that crosses the river, the principal post both sides of beam segments, the principal post both sides of brace summer a pair of lateral conductor is installed all.

4. big section door shape steel work pole according to claim 1 is characterized in that: at crossbeam and both sides principal post upper end two diagonal members are installed.

5. big section door shape steel work pole according to claim 1, it is characterized in that: described brace summer is a seamless steel pipe.