CN201730106U - Power transmission tower composite foundation - Google Patents
Power transmission tower composite foundation Download PDFInfo
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- CN201730106U CN201730106U CN2010201277199U CN201020127719U CN201730106U CN 201730106 U CN201730106 U CN 201730106U CN 2010201277199 U CN2010201277199 U CN 2010201277199U CN 201020127719 U CN201020127719 U CN 201020127719U CN 201730106 U CN201730106 U CN 201730106U
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- power transmission
- iron tower
- transmission line
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Abstract
The utility model discloses a power transmission tower composite foundation, which is characterized by comprising a section steel metal foundation and a reinforced concrete foundation. The section steel metal foundation is directly laid on a foundation of a pit, the upper portion is connected with a tower, and the reinforced concrete foundation covers the outside of the section steel metal foundation. By combining the section steel metal foundation with the reinforced concrete foundation, the power transmission tower composite foundation saves the time of waiting for concrete curing before assembly of large-sized tower in construction of power transmission lines, is favorable for shortening rescue time for the power transmission lines, and reduces affection of power failure to production and daily life.
Description
Technical field
The utility model relates to the basis that a kind of iron tower of power transmission line uses, and belongs to the civil engineering technical field.
Background technology
There are the concrete foundation of cast in situs and two kinds of forms of assembling type base of precognition in the basis of iron tower of power transmission line.Concrete is because self properties of materials needs certain curing time after the foundation construction, and concrete strength just can be born load after increasing.The assembling type base construction is fast, constructed and can bear load immediately, but the supporting capacity of assembling type base is low, can only be used for small-sized iron tower.
Itself all adopts assembling type steel structure large-scale iron tower, the field-installed time is very short, the basic pattern that present 220kV and above large-scale iron tower adopt nearly all is a reinforced concrete foundation, between foundation construction and the iron tower assembling is arranged one period free time, waits for concrete gain in strength.
Current social industrial production and people's lives are very high to the degree of dependence of electric power, and the time of the speedily carrying out rescue work control after the iron tower of power transmission line accident is collapsed is very important, and concrete maintenance has restricted the time that transmission line of electricity is speedily carried out rescue work in large-scale iron tower.
The utility model content
It is simple that technical problem to be solved in the utility model provides a kind of construction, do not influence a kind of iron tower of power transmission line basis of upright tower, stringing engineering time.
For solving the problems of the technologies described above, the utility model provides a kind of composite foundation of power transmission line iron tower, it is characterized in that, the shaped steel metal basis and the reinforced concrete foundation that comprise self-organizing system, described shaped steel metal basis directly is placed on the ground of foundation ditch, top links to each other with iron tower, shaped steel metal basis is assembled to finish in foundation ditch and just can be begun to assemble iron tower on the ground, reinforced concrete foundation is coated on the outside on shaped steel metal basis, can in the assembling iron tower, construct, also can construct earlier and assemble iron tower again, but not need extra curing time.
The load of assembling iron tower can be born in shaped steel metal basis, and concrete maintenance utilizes the engineering time of iron tower assembling, and the final composite foundation that forms can be born the load of later stage line construction and operation.
Aforesaid composite foundation of power transmission line iron tower is characterized in that: described shaped steel metal basis comprises basic steel cap, column, girder and floor from top to bottom successively, and connects by bolt each other.
Aforesaid composite foundation of power transmission line iron tower is characterized in that: the basic steel cap that reinforced concrete foundation is coated on shaped steel metal basis reaches with the lower part.Concrete is until concordant with steel plate three, and final steel plate three also can be built a layer concrete after having assembled iron tower, steel are all wrapped in the concrete.Concrete had both been born the pressure of a part of iron tower in whole basis, play the effect of steel corrosion-resistant again.
Described floor comprises that the some H shaped steel one that are parallel to each other reach and the steel plate one of putting more energy into of its welding, and is connected with girder.
Described girder is arranged on the floor, and with the H shaped steel one perpendicular layout of floor, comprise two H shaped steel two and and its steel plate two of putting more energy into that welds mutually.
Described column comprises four angle steel one and four angle steel two that directly are arranged at the floor top that are arranged at H shaped steel two tops, described angle steel one, angle steel two weld with steel plate one respectively, H shaped steel two and steel plate one link to each other by bolt, floor is connected by bolt with steel plate, is provided with the angle steel three of many levels and the angle steel four of many inclinations between described four angle steel one and the angle steel two.
Described basic steel cap comprises four blocks of steel plates two all around that are welded into the steel plate three of " returning " font and are vertically installed in steel plate three that are horizontally placed on column top, and be welded to each other together, described steel plate two is connected with four angle steel two with four angle steel one of column by bolt.
The beneficial effect that the utility model reached:
The utility model is by combining shaped steel metal basis and reinforced concrete foundation, saved the medium-and-large-sized preceding time of waiting for concrete curing of iron tower assembling of transmission line construction, help shortening the time that transmission line of electricity is speedily carried out rescue work, reduce the influence that has a power failure to producing and living.
Description of drawings
Fig. 1 is chassis, the shaped steel metal basis schematic diagram of a kind of embodiment of composite foundation of power transmission line iron tower of the present utility model;
Fig. 2 is the shaped steel metal basis elevational schematic view of a kind of embodiment of composite foundation of power transmission line iron tower of the present utility model;
Fig. 3 is a composite foundation of power transmission line iron tower of the present utility model basis steel cap portion vertical view.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
In Fig. 1 and Fig. 2, shaped steel metal basis comprises basic steel cap, column, girder and floor from top to bottom successively, and connects by bolt each other.
Steel plate 2 14, steel plate 31 weld together, common formation base steel cap; Steel plate 1 welds with angle steel 1, angle steel 22 respectively, as the bolt junction plate of column angle steel end; Angle steel 35, angle steel 4 11 are the upright supports part; The H shaped steel 27 and the steel plate 2 10 of putting more energy into weld together, the girder of common formation base; The H shaped steel 1 and the steel plate 1 of putting more energy into weld together, the floor of common formation base; Connect the main stress frame of formation base by bolt between basis steel cap, column, girder, the floor; Template support 4 is connected by bolt with the column angle steel.
The utility model is mainly used in speedily carrying out rescue work of 220kV and the large-scale iron tower of 500kV transmission line of electricity.
Metal shaped steel, concrete composite foundation design procedure are as follows:
1) according to iron tower quality, place geological conditions, the wind speed of construction period design metal assembling type base;
2) size and the arrangement of reinforcement of concrete foundation calculated in the meteorological combination of the least favorable of the lead wire and earth wire parameter that adopts according to transmission line of electricity, stringing construction method, circuit run duration;
3) take all factors into consideration the structure of metal mold base steel plinth and concrete foundation, the bearing carrier that cancellation repeats to be provided with, the position of the member of coordinating to influence each other;
4) suitable concrete strength and the Admixture of selection of time that assembles according to iron tower.
Metal shaped steel, concrete composite foundation method for designing are exemplified below:
As certain 500kV power transmission sequence, 58.8 tons of iron tower deadweights, iron tower assembly process maximum design wind speed 10m/s, circuit run duration maximum design wind speed 30m/s, foundation soil is the silty clay of soft-plastic state, and bearing capacity of foundation soil 70kPa stablizes groundwater level 0.5m throughout the year.
1) according to the iron tower load of construction period, the width of metal assembling type base is defined as 3.65m, and foundation bed adopts 11 H shaped steel that width is 0.25m.
2) according to the load of stringing construction and circuit run duration, the width of concrete foundation is 5.9m, buried depth 2.5m, basis arrangement of reinforcement 30 at the end
φ14.
3) metal shaped steel in the basic column and reinforcing bar merge, and promptly increase the area of shaped steel, cancellation column arrangement of reinforcement, and the position of coordinating sole plate reinforcing bar and H shaped steel, reserved steel bar passes through the hole.
4) in metal mold base steel plinth, add auxiliary accessories or the installing hole that foundation construction is used.
5) concrete foundation adopts C35 early strength concrete 12, curing time 2～3 days.
Above embodiment limits the utility model never in any form, and every other improvement and application that above embodiment is made in the equivalent transformation mode all belongs to protection domain of the present utility model.
Claims (7)
1. composite foundation of power transmission line iron tower, it is characterized in that: the shaped steel metal basis and the reinforced concrete foundation that comprise self-organizing system, described shaped steel metal basis directly is placed on the ground of foundation ditch, and top links to each other with iron tower, and reinforced concrete foundation is coated on the outside on shaped steel metal basis.
2. composite foundation of power transmission line iron tower according to claim 1 is characterized in that: described shaped steel metal basis comprises basic steel cap, column, girder and floor from top to bottom successively, and connects by bolt each other.
3. composite foundation of power transmission line iron tower according to claim 1 and 2 is characterized in that: the basic steel cap that reinforced concrete foundation is coated on shaped steel metal basis reaches with the lower part.
4. composite foundation of power transmission line iron tower according to claim 2 is characterized in that: described floor comprises that the some H shaped steel one (8) that are parallel to each other reach and the steel plate one (9) of putting more energy into of its welding.
5. composite foundation of power transmission line iron tower according to claim 2 is characterized in that: described girder is arranged on the floor, and with H shaped steel one (8) perpendicular layout, comprise two H shaped steel two (7) and and its steel plate two (10) of putting more energy into that welds mutually.
6. composite foundation of power transmission line iron tower according to claim 2, it is characterized in that: described column comprises that one (3) and four in four angle steel that are arranged at H shaped steel two (7) tops directly are arranged at the angle steel two (2) of floor top, described angle steel one (3), angle steel two (2) welds with steel plate one (6) respectively, H shaped steel two (7) links to each other with bolt by steel plate (6) with angle steel one (3), floor is connected with bolt by steel plate (6) with angle steel two (2), is provided with the angle steel three (5) of many levels and the angle steel four (11) of many inclinations between described four angle steel one (3) and the angle steel two (2).
7. composite foundation of power transmission line iron tower according to claim 2, it is characterized in that: described basic steel cap comprises four blocks of steel plates two (14) all around that are welded into the steel plate three (1) of " returning " font and are vertically installed in steel plate three (1) that are horizontally placed on column top, and be welded to each other together, described steel plate two (14) is connected with four angle steel two (2) with four angle steel one (3) of column by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201277199U CN201730106U (en) | 2010-03-10 | 2010-03-10 | Power transmission tower composite foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201277199U CN201730106U (en) | 2010-03-10 | 2010-03-10 | Power transmission tower composite foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201730106U true CN201730106U (en) | 2011-02-02 |
Family
ID=43521263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201277199U Expired - Lifetime CN201730106U (en) | 2010-03-10 | 2010-03-10 | Power transmission tower composite foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201730106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775813A (en) * | 2010-03-10 | 2010-07-14 | 江苏省电力设计院 | Composite foundation of power transmission line iron tower |
| CN103469807A (en) * | 2013-08-06 | 2013-12-25 | 安徽华电工程咨询设计有限公司 | Distribution type rapid assembly method for new and old foundations for power transmission line |
-
2010
- 2010-03-10 CN CN2010201277199U patent/CN201730106U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775813A (en) * | 2010-03-10 | 2010-07-14 | 江苏省电力设计院 | Composite foundation of power transmission line iron tower |
| CN103469807A (en) * | 2013-08-06 | 2013-12-25 | 安徽华电工程咨询设计有限公司 | Distribution type rapid assembly method for new and old foundations for power transmission line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110202 Effective date of abandoning: 20110831 |