CN209798684U - Arched girder plane steel gate based on reasonable arch axis - Google Patents

Abstract

The utility model relates to an arch girder plane steel gate based on reasonable arch axis, a serial communication port, include: the gate comprises gate piers, a panel, a connecting column and an arched girder, wherein the arched girder is in an arc shape, two ends of the arched girder are in sliding connection with a pair of sliding grooves of the gate piers, the arc top end of the arched girder faces the panel, the arched girder is fixedly connected with the panel through a plurality of connecting columns, the two ends of the panel are respectively connected with the sliding grooves of the gate piers in a sliding way through the supporting sliding blocks, the top ends of the gate piers are connected with the hoist, the arched girder is made of I-shaped, square tube or round tube steel, and the two ends of the connecting column are respectively fixedly connected with the arched girder and the panel by welding, the utility model is suitable for the gate with larger span or larger flood discharge opening, the arched girder is adopted to reduce the weight of the steel gate, thereby better exerting the adjusting function of the gate, further reducing the capacity of the steel gate hoist and saving the manufacturing cost.

Description

Arched girder plane steel gate based on reasonable arch axis

Technical Field

The utility model relates to an arch girder plane steel gate based on reasonable arch axis.

Background

In order to better solve the problems of contradiction between supply and demand of water resources and flood and drought disasters in China, the built-in hydroenergy resources are developed, the energy industry structure is changed, beautiful Chinese dreams are built, the ecological civilization construction of China is promoted, the construction of a large dam and a large reservoir of a high dam and the guarantee of ecological water transfer are imperative, and the sluice gate for regulating the throat plays a vital role. Only through the flexible opening and closing of the gate, the reservoir and the channel can be adjusted in real time, the requirements of flood control, power generation and water resource allocation are met, and the safety of the gate determines the safety of the life and property of the whole hub and the downstream people to a great extent. The gate is one of the important components of the hydraulic building, and has the functions of closing the orifice of the hydraulic building and opening fully or partially as required to regulate upstream and downstream water levels, discharge flow, power station operation, navigation and other control functions. The proportion of the gate in the total cost of the hydraulic building is large, generally accounts for 10% -30%, and can reach 50% in some projects, so the safety design of the gate is an important work. The plane steel gate can meet the requirements of various types of water drainage pore passages, and becomes a gate type which is most widely applied. The force transmission path of the plane steel gate during water retaining is as follows: the water load is transmitted to the panel, the panel is transmitted to the horizontal secondary beam or the vertical secondary beam, the secondary beam is transmitted to the main beam, the main beam is transmitted to the boundary beam, the boundary beam is transmitted to the track and finally transmitted to the gate pier, and the largest defect of the plane steel gate is that the dead weight is large, the required opening and closing force is large, and then the hoist with large capacity is required to be selected, and further the effect of flexibly adjusting the water levels of upstream and downstream cannot be fully exerted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an arch girder plane steel gate based on reasonable arch axis when fully flood discharge or arrange sand, alleviates steel gate's dead weight, and then can select the less headstock gear of capacity, and the effect of upstream and downstream water level is adjusted in a flexible way to full play.

In order to realize the purpose, the utility model discloses a technical scheme is:

the utility model provides an arch girder plane steel gate based on reasonable arch axis which characterized in that includes: gate piers, panels, connecting columns and arched girders;

The arch girder is the circular arc type, arch girder both ends are with a pair of the spout sliding connection of gate pier, arch girder circular arc top orientation the panel, the arch girder through a plurality of spliced pole with panel fixed connection, the panel both ends through support slider respectively with a pair of the spout sliding connection of gate pier, the gate pier top is connected with the headstock gear.

Arched girder plane steel gate based on reasonable arch axis, wherein: the arched girder is made of I-shaped, square tube or round tube steel.

Arched girder plane steel gate based on reasonable arch axis, wherein: the two ends of the connecting column are respectively fixedly connected with the arched girder and the panel through welding.

The utility model has the advantages that: under the requirement of the same drainage pore passage, the unfavorable stress state of the main beam of the plane steel gate can be improved, the material consumption of the main beam of the gate is reduced, the weight of the gate is further reduced, a hoist with smaller capacity can be selected, the gate can be flexibly adjusted to be opened and closed, and the construction cost is saved.

Drawings

Fig. 1 is a structural diagram of an arched girder plane steel gate based on a reasonable arch axis.

Fig. 2 is a structural view of a conventional linear girder planar steel gate.

Description of reference numerals: 1-gate pier; 2-a panel; 3-connecting a column; 4-an arched girder; 5-straight main beam.

Detailed Description

As shown in fig. 1 and 2, the arched girder plane steel gate based on the reasonable arch axis is characterized by comprising: gate pier 1, panel 2, spliced pole 3 and arch girder 4.

Arch girder 4 is the circular arc type, 4 both ends of arch girder are with a pair of gate pier 1's spout sliding connection, 4 circular arc top orientations of arch girder panel 2, arch girder 4 through a plurality of spliced pole 3 with 2 fixed connection of panel, 2 both ends of panel pass through the supporting shoe respectively with a pair of gate pier 1's spout sliding connection, gate pier 1 top is connected with the headstock gear.

The arched girder 3 is made of I-shaped, square tube or round tube steel.

And two ends of the connecting column 3 are respectively fixedly connected with the arched main beam 4 and the panel 2 through welding.

in the embodiment, the steel gate is applied to various types of water drainage channels, the action of adjusting the water levels of upstream and downstream is realized, the force transmission path of the arched girder plane steel gate during water retaining is that the force of water load is transmitted to the panel 2, the panel transmits the borne force to the connecting column 3, the force is transmitted to the arched girder 4 through the connecting column 3, when the pressure line of the arched girder 4 is superposed with the axis of an arch, the distance from the centroid of each section to the resultant force action line is zero, the bending moment of each section is zero, the shearing force of each section is also zero, only the axial force is applied, the positive stress is uniformly distributed along the section, at the moment, the arch structure is in a bending moment-free state, the materials can be fully utilized, the girder of the traditional steel gate is linear type, fig. 2 shows the linear type girder plane steel gate, therefore, the bending moment on the section of the arched girder 4 on the reasonable arch axis is smaller than that on the straight girder section, and the reduction of bending moment can make the arch girder exert the effect of material more fully, more be applicable to in the gate that great span and flood peak are higher, adopt reasonable arch axis arch girder 4 replaces original linear type girder 5 as the girder of plane steel gate, because linear type girder 5 can produce bending moment and shear force effect under the water load effect, and arch girder 4 only receives the axle force effect, so not only can improve the unfavorable stress state of plane steel gate girder, but also can alleviate the material quantity of gate girder, alleviates the weight of gate, and then can fully exert the effect of nimble regulation. The structural mechanics method and the finite element method are adopted to verify a specific engineering example, and the following results can be obtained: under the same flood peak effect, adopt arch girder 4 replaces original straight line form girder 5, can alleviate about gate girder weight 70%, can alleviate about the plane steel gate of general two girders gate total weight 20%, can alleviate about weight 30% to the plane steel gate of many girders, also is the plane steel gate use the arch girder 4 figure is more, alleviates gate weight just more just, and then can reduce the capacity of plane steel gate headstock gear, not only saves the cost, but also can be more nimble open and close the gate, the regulatory action of better performance gate.

The utility model has the advantages that:

under the requirement of the same drainage pore passage, the unfavorable stress state of the main beam of the plane steel gate can be improved, the material consumption of the main beam of the gate is reduced, the weight of the gate is further reduced, a hoist with smaller capacity can be selected, the gate can be flexibly adjusted to be opened and closed, and the construction cost is saved.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (3)

1. The utility model provides an arch girder plane steel gate based on reasonable arch axis which characterized in that includes: the gate pier comprises a gate pier (1), a panel (2), a connecting column (3) and an arched main beam (4);

Arch girder (4) are the circular arc type, arch girder (4) both ends are with a pair of the spout sliding connection of gate pier (1), arch girder (4) circular arc top orientation panel (2), arch girder (4) through a plurality of spliced pole (3) with panel (2) fixed connection, panel (2) both ends through support slider respectively with a pair of the spout sliding connection of gate pier (1), gate pier (1) top is connected with the headstock gear.

2. An arched girder plane steel gate based on a rational arch axis as claimed in claim 1, wherein: the arched main beam (4) is made of I-shaped, square tubular or round tubular steel.

3. an arched girder plane steel gate based on a rational arch axis as claimed in claim 1, wherein: the two ends of the connecting column (3) are respectively fixedly connected with the arched girder (4) and the panel (2) through welding.