CN101864805B - Steel dam space truss structure unit body and arch-style steel dam - Google Patents
Steel dam space truss structure unit body and arch-style steel dam Download PDFInfo
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- CN101864805B CN101864805B CN2010101546560A CN201010154656A CN101864805B CN 101864805 B CN101864805 B CN 101864805B CN 2010101546560 A CN2010101546560 A CN 2010101546560A CN 201010154656 A CN201010154656 A CN 201010154656A CN 101864805 B CN101864805 B CN 101864805B
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Abstract
The invention relates to a steel dam space truss structure unit body and an arch-style steel dam. The unit body is a hexahedral space truss structural body with a front end surface and a rear end surface in key pattern structures and other lateral surfaces in a stud link chain structure, connecting rods are respectively arranged between a central node O of the front end surface and other nodes, supporting connecting rods are respectively arranged between four middle nodes A,B,C and D of the front end surface and four vertexes of the rear end surface, and supporting connecting rods are respectively arranged between a central node O' of the rear end surface and the four vertexes of the rear end surface. The steel dam, which is a space truss structure with a curve upstream surface, is formed by combining the space truss structure unit bodies, an eliminator is fixed on the curve upstream surface, the bam bottom of the steel dam is fixed with a reinforced concrete bearing platform, and both sides of the steel dam are respectively fixed with the stepped bearing platform formed by reinforced concrete structures at both banks. The steel dam is kept stable mainly by the counteraction of arc ends at both banks and has strong overload capacity, high degree of safety and engineering investment saving.
Description
One, technical field:
The present invention relates to the dam architecture advances technology of Hydraulic and Hydro-Power Engineering, particularly a kind of steel-structure dam space truss structure cell cube and arch formula steel-structure dam.
Two, background technology:
At present, the main gravity dam of the water retaining structure in the Hydraulic and Hydro-Power Engineering, earth and rockfill dam and arch dam three big dam types.The hydraulic engineering of these three kinds of dam types all has investment greatly, long construction period, and difficulty of construction is big, the characteristics bigger to ambient influnence.At different building patterns, make a concrete analysis of the deficiency that exists below.
The work characteristics of gravity dam is that the skid resistance that relies on the dam body deadweight to produce satisfies the dam body stability requirement, and the compressive stress that relies on the dam body deadweight to produce is offset because the caused tensile stress of water pressure.This has just determined gravity dam that enough big dam body cross dimensions will be arranged, and causes dam material (sandstone material, cement, reinforcing bar) consumption big, because dam volume is huge, makes the concrete intensity of dam material not give full play to, and makes that the dam body stress after building up is lower.And because the dam body section is big, dam body and ground contact area are big, cause the dam at the bottom of uplift pressure big, quite unfavorable again to stablizing of dam body self; Simultaneously, produce differential settlement, must carry out consolidation grouting to the dam foundation and handle, cause ground disposal cost height for avoiding dam body.
Earth and rockfill dam is the dam that native stone material constitutes, and can utilize local material to build a dam.Equally, also will to have enough dam body sections just can keep stable for earth and rockfill dam.And the safety of earth and rockfill dam is to depend on the side slope of dam body and stablizing of the dam foundation.Therefore, when structure design, take into full account and the good anti-drainage that blends is set with control seepage flow; Guarantee the stable of dam body, the dam foundation.But, because the unsuitable overcurrent of the dam body of earth and rockfill dam when hinge is arranged, need be provided with special release floodwatering facility, could guarantee the safe operation of engineering, increased construction investment; Simultaneously, construction period water conservancy diversion, the difficulty of passing the flood period and investment have also been increased.
And the construction of gravity dam, earth and rockfill dam is carried out on the river, is subjected to factor affecting such as the hydrology, meteorology, landform, geology very big, must carry out construction diversion during construction, could guarantee carrying out smoothly of engineering construction; And in the winter time, during summer or freezing, snowfall, rainy day construction, must take appropriate measures, avoid climatic effect, guarantee construction quality and construction speed.As, concrete in the winter time, all will take corresponding temperature control measures during hot weather construction, avoid dam body the harmfulness crack to occur, increased the difficulty and the investment of construction.The construction winter of earth and stone material, rainy season construction also will be taked engineering measure antifreeze accordingly, rainy season construction, guarantee the dam embankment construction quality.
In addition, building of hydraulic structure is positioned at ungetable mountain area often, the preparation amount of construction is quite big, not only to build an inside and outside traffic route (railway, highway, water route), being arranged as construction service auxiliary enterprises (as concrete aggregate exploitation system of processing, the earth and stone material field is mixed and stirred with earth and stone material system of processing, concrete and refrigeration system, mechanical repair system, motor repair shop, reinforcement yard, factory for prefabrication, wind, water, electricity, communicate by letter, illuminator etc.), and to build office and life room.Building of these facilities will increase the investment of engineering.
Three, summary of the invention:
For the cross dimensions that overcomes gravity dam, earth and rockfill dam is big, the strength of materials can not be given full play to, long construction period, difficulty of construction is big, and investment is big, and material usage is big, the shortcoming big to ambient influnence the invention provides a kind of steel-structure dam space truss structure cell cube and arch formula steel-structure dam.
Technical scheme:
A kind of steel-structure dam space truss structure cell cube, it is characterized in that: comprise approximate cuboid or the hexahedral space truss structure body of approximate trapezoid, the front and rear end of described space truss structure body is approximate sphere of movements for the elephants shape trussed construction, and left surface, right flank, upper surface, soffit are approximate " day " font trussed construction; Front end face Centroid O (host node, be that vertical and level in the front end face is to the interface point of connecting rod) and the every other node of this space truss structure body between be provided with support link, four intermediate node A of front end face, B, C, D is respectively equipped with support link between corresponding with it respectively four summits of rear end face, be provided with support link between rear end face Centroid O ' (be in the rear end face vertical and level to the interface point of connecting rod) and four summits of rear end face, on the space truss structure body, a soffit or a left side, each node of right flank is provided with and is connected and fixed structure, this space truss structure cell cube left surface, right flank, upper surface, each connecting rod of soffit is respectively the common support connecting rod of its adjacent space trussed construction cell cube, and each connecting rod of the border joint face of cell cube is this unit self support link on the border.
Above-mentioned approximate trapezoid hexahedron, its longitudinal section for example can be right-angled trapezium or isosceles trapezoid.
Arbitrary level or oblique beam connecting rod and node vertical or that be similar between the vertical post connecting rod are connected and fixed structure employing ball node syndeton, perhaps adopt engaging lug fixedly connected; Described engaging lug is the board-like engaging lug of symmetry, two symmetrical engaging lug one ends are separately fixed on the dual-side of vertical or approximate vertical posts connecting rod (being vertical link) side of its correspondence, the two symmetrical engaging lug other ends dock with the end face of level or oblique beam connecting rod (waling stripe), and in two symmetrical engaging lugs and level or tilt and be fixed with brace between two link sidewalls.
Above-mentioned vertical post connecting rod is represented vertical direction column connecting rod, approximate vertical posts connecting rod is represented the vertical posts connecting rod of slight inclination, there was the broken line structure in cell cube about the vertical posts connecting rod of slight inclination can satisfy between the vertical posts connecting rod that its front end face or rear end face after the combination are, and is very not big to the gradual change angle the upper unit body from lower floor's cell cube.Above-mentioned oblique connecting rod is then represented the connecting rod that do not connect by engaging lug between two connecting rods of sustained height.
In addition can also be between two parallel engaging lugs fixed support plate.At least one gripper shoe is vertically fixed between the two parallel engaging lugs.Gripper shoe one end joint pin connecting rod, other end tie-beam link supports plate respectively with two engaging lug vertical fixing.Adopt the mode of hinged ear to connect a plurality of connecting rods at a node while interference-free.
Rear end face is a parallel construction behind the front end face of the described seemingly space truss structure of cuboid, and the front end face of the hexahedral space truss structure of approximate trapezoid and rear end face are non-parallel structure.
Each connecting rod of steel-structure dam space truss structure cell cube can adopt square steel or i iron and other shaped steel even circular shaped steel fixedly connected.For example the vertical posts connecting rod of truss element framework adopts square steel to be connected with the horizontal beam connecting rod, and oblique connecting rod adopts i iron to connect.Wherein section bars such as the square steel of specific model or i iron can be made in processing factory in advance, also can weld at the scene.
This space truss structure cell cube should not regarded as and is individual unit body independently, but in the assembly of the upwards fixedly connected respectively identical cell cube of left and right, upper and lower a common representative unit body, promptly each connecting rod of the left surface of space truss structure cell cube, right flank, upper surface, soffit is respectively the common support connecting rod of its adjacent space trussed construction cell cube.Thereby can there be four class tie points of dissimilar annexations in each node, and promptly the node structure on four summits of front end face center O node and rear end face of space truss structure cell cube is identical; Four summits of front end face and rear end face center O ' node structure identical; Mid point A, the C of horizontal beam connecting rod are identical with the node structure of mid point B ', the D ' of rear end face left and right sides post connecting rod about the front end face; Mid point A ', the C ' of front end face left and right sides post connecting rod and the rear end face node structure of mid point B, the D of horizontal beam up and down are identical.Each node is as follows by the concrete syndeton relation of engaging lug:
The central point O of front end face is near position front end face central post connecting rod C5, the C8 pad, because the node that the O point connects is more, on the trailing flank of this central post connecting rod C5, left surface, right flank, fix six prismatic fixed support body of widening, the leading flank of this six prismatic supporter overlaps with the leading flank of central post connecting rod C5, five sides of the residue of this six prism are that left surface, left back side, trailing flank, right back side, right flank are fixed with parallel engaging lug respectively, and the every pair of engaging lug is fixedly connected with respectively tiltedly and goes up, level, oblique lower link.Particularly, the engaging lug of six prismatic left sides, back, right flank is fixedlyed connected with B, O ', each node of D by the horizontal beam connecting rod respectively, i.e. MHB1, MVB2, MHB2 connecting rod; The engaging lug of six prismatic left sides, back, right flank is fixedlyed connected with E, A ', each node of H by tiltedly going up connecting rod respectively, i.e. UFX1, MB1, UFX2 connecting rod; The engaging lug of six prismatic left sides, back, right flank is fixedlyed connected with F, C ', each node of G by oblique lower link respectively, i.e. UFX3, MB2, UFX4 connecting rod; Six prismatic engaging lugs left back, right back side are fixedlyed connected with each node of B ', D ' by the horizontal beam connecting rod respectively, i.e. MX1, MX2; Six prismatic engaging lugs left back, right back side are fixedlyed connected with E ', H ' node by tiltedly going up connecting rod respectively, i.e. X1, X2 connecting rod; Six prismatic engaging lugs left back, right back side are fixedlyed connected with F ', G ' node by oblique lower link respectively, i.e. UFX3, UFX4 connecting rod.In addition, E ', F ', each node of G ', H ' have the syndeton the same with the O node.
The central point O ' of front end face is the center apparent position of rear end face central post connecting rod C2, the left surface of central post connecting rod C2, trailing flank, right flank are fixed with parallel engaging lug respectively, the fixing parallel engaging lug of the left surface of its central post C2 and right flank is fixedly connected with respectively tiltedly and goes up, level, oblique lower link, the fixedly connected waling stripe of parallel engaging lug that the trailing flank of central post C2 is fixing.Particularly, parallel engaging lug fixing on the left surface of central post C2, the right flank is fixedlyed connected with E ', H ' node by tiltedly going up connecting rod respectively, i.e. UBX1, UBX2; Parallel engaging lug fixing on the left surface of central post C2, the right flank is fixedlyed connected with F ', G ' node by oblique lower link respectively, i.e. DBX1, DBX2; Parallel engaging lug fixing on the trailing flank of central post C2 is fixedlyed connected with the O node by the horizontal beam connecting rod, i.e. MVB2.In addition, E, F, each node of G, H have the syndeton the same with O ' node
Because it is more with the node that the side post connecting rod C1 central point B ' of rear end face is fixing, on the leading flank of this side post connecting rod C1, left surface, right flank, fix six prismatic fixed support body of widening, the trailing flank of this six prismatic supporter overlaps with the trailing flank of side post connecting rod C5, five sides of the residue of this six prism are that left surface, left front side, leading flank, right front side, right flank are fixed with parallel engaging lug respectively, and every pair of engaging lug is fixedly connected with waling stripe.Particularly, five sides of the residue of this six prism are that the fixing respectively horizontal beam connecting rod of left surface, left front side, leading flank, right front side, right flank is fixedlyed connected with each node of adjacent level face, be connecting rod MHB31, MX11, MVB1, MX2, MHB3, wherein MHB31, MX11 are and the fixing connecting rod of adjacent cells body, MVB1 is the public connecting rod of adjacent cells body, and MX2, MHB3 are this unit inside connecting rod.In addition, A, C, each node of D ' and have the syndeton the same with B ' node.
The side post connecting rod C4 upper end vertex E of front end face, left surface, trailing flank, the right flank of this post connecting rod C4 are fixed with parallel engaging lug respectively, the fixing parallel engaging lug of the trailing flank of its post connecting rod C4 is fixedly connected with respectively tiltedly and goes up, level, oblique lower link, and the fixing parallel engaging lug of the left surface of post connecting rod C4, right flank is fixedly connected waling stripe respectively.Particularly, the left surface of post connecting rod C4, the fixing parallel engaging lug of right flank are fixedlyed connected with adjacent node in the same plane by the horizontal beam connecting rod respectively, be MHB11, MHB1, wherein MHB11 is and the fixing connecting rod of adjacent cells body, and MHB1 is a stationary links in this cell cube; The fixing parallel engaging lug of the trailing flank of post connecting rod C4 respectively by tiltedly go up, level, tiltedly lower link is fixedlyed connected with E ', B ', each node of F ', i.e. LB2, MVB1, LB1, this LB2, MVB1, LB1 be the public connecting rod of this cell cube and adjacent cells body.In addition, A ', F, each node of D ' have the syndeton the same with the E node.
A kind of arch formula steel-structure dam by described space truss structure cell cube combination, contain steel concrete cushion cap and pre-buried fixture at the bottom of the dam, step cushion cap and built-in fitting that the two sides reinforced concrete structure builds up, whole true form according to the steel-structure dam design, dam bottom width degree, the dam body height, each sheaf space trussed construction cell cube is selected in dam body Breadth Maximum and designing requirement, two sides step number, step horizontal plane width and shoulder height are carried out Normalized Design, the built-in fitting that passes through fixedly at the bottom of the sole and dam in the steel concrete cushion cap of the post connecting rod lower end of the space truss structure cell cube of the bottom is fixed, the left side of adjacent space trussed construction cell cube, right adjacent side and last, following adjacent face has public support link and node connecting structure, be included in the left side of the space truss structure cell cube in the dam body, right flank and last, the lower surface interconnects fixing by common support connecting rod and node connecting structure each other, the connection sole of the post connecting rod lower end at the assembly two ends of every stringcourse formula space truss structure cell cube is fixedlyed connected with the horizontal plane built-in fitting of step cushion cap, the assembly of each stringcourse formula space truss structure cell cube forms the combination steel-structure dam body of the stacked syndeton of arch, be fixed with watertight shutter at steel-structure dam body upstream face, the space truss structure dam body that each space truss structure cell cube and watertight shutter are composed of a fixed connection and have the curved surface upstream face.
The rear end back side of described space truss structure dam body is the near normal face, and the longitudinal section of space truss structure dam body is restrained transition by the bottom gradually to the top.
Described watertight shutter is fixed on the upstream face of space truss structure cell cube, watertight shutter is by bolt or be weldingly fixed on the space truss unit upstream face, the sealing sealing is set between the adjacent watertight shutter, passes through the caulking gum fixing seal between for example adjacent watertight shutter.
The bottom of described dam base concrete cushion cap and both sides step concrete bearing platform is fixed on the basement rock depths by anchor pole respectively.
Also be fixedly connected with auxiliary stand on the back side of dam body rear end, be provided with power plant building facility, elevator shaft, maintenance gallery in auxiliary stand or dam body, suitable place is provided with the flood discharge passage in the reservoir area landform.
Its end face was that upstream face, rear end face are back side after steel-structure dam space truss structure cell cube was fixedly connected sequentially.Because the steel-structure dam main body is domes, the load part that it bore is pressed to two sides by the effect of arch, and another part is passed to Ba Dijiyan by vertical beam action, so its stable main counter-force effect that relies on the two sides arch abutment.When external applied load increases, the steel-structure dam main body will be adjusted under arch and beam effect voluntarily, and dam main body stress is redistributed.
Steel-structure dam is approximate bilateral symmetry structure, also can be designed to unsymmetric structure according to actual geographical location circumstances and stressing conditions, usually the middle part cell density of steel-structure dam main body is bigger, and the unit transverse width to both sides from the middle part of space truss structure dam body increases gradually, and is perhaps constant; Be fixed with the corridor, plane in the laying of surface, dam body top side.
Beneficial effect of the present invention:
1, stablizes characteristics.The stable main counter-force effect that relies on the two sides arch abutment of dam body, it is stable to rely on deadweight to keep unlike gravity dam.
2, design feature.Arch formula steel-structure dam belongs to the high order statically-indeterminate structure, and overload capacity is strong, the degree of safety height, and when external load increased, dam body will be adjusted voluntarily at arch and beam effect, and dam body stress is redistributed.Arch formula steel-structure dam is the overall space structure, and dam body is gently tough, good springiness, and shock resistance is strong.Arch structure is a kind of thrust structure of mainly bearing axial compression, and moment of flexure is little in the arch, and stress distribution is comparatively even, helps bringing into play the intensity of steel structure material.
3, application characteristic.Arch formula steel-structure dam not only can safe overflow, and can the big aperture of single or multiple lift be set at dam body and sluice.The safety that can guarantee flood is led off, guarantees also can satisfy the maintenance of industrial or agricultural, urban water use and dam body, reservoir area, the requirement of emptying.
4, construction characteristic.The construction of steel-structure dam can utilize caisson method to block water and launch ground and handle; Each of unit monolith form member can factory in assembling be transported to the scene or take field-installed form, fixed-point installation is gone into a position connection and is finished.This job practices has changed the form of construction work of traditional water conservancy engineering, has cancelled building of the program of water conservancy diversion and cofferdam, diversion structure.Saved construction investment.
Four, description of drawings:
Fig. 1 is a steel-structure dam space truss structure cell cube perspective view of the present invention;
Fig. 2 is O (or E ' or F ' or G ' or H ') the node perspective view of Fig. 1 unit;
Fig. 2-1, Fig. 2-2, Fig. 2-3 are respectively front view, vertical view and the lateral views of Fig. 2;
Fig. 3 is O ' (or E or F or G or H) the node perspective view of Fig. 1 unit;
Fig. 3-1, Fig. 3-2, Fig. 3-3 are respectively front view, vertical view and the lateral views of Fig. 3;
Fig. 4 is B ' (or A or C or D ') the node perspective view of Fig. 1 unit;
Fig. 4-1, Fig. 4-2, Fig. 4-3 are respectively rear elevation, vertical view and the lateral views of Fig. 4;
Fig. 5 is B (or A ' or C ' or D) the node perspective view of Fig. 1 unit;
Fig. 5-1, Fig. 5-2, Fig. 5-3 are respectively front view, vertical view and the lateral views of Fig. 5;
Fig. 6 is a connection status schematic diagram between connecting rod and the hinged ear;
Fig. 7 is an arch formula steel-structure dam plan structure schematic diagram of the present invention;
Fig. 8 is that the C of Fig. 7 is to (back side) structural representation;
Fig. 9 is the B-B cross-sectional view of Fig. 8;
Figure 10 is the A-A cross-sectional view of Fig. 8;
Figure 10-the 1st, the A1-A1 cross-sectional view of Fig. 8;
Figure 11 is the D1 portion structure for amplifying schematic diagram of Fig. 8;
Figure 12 is the D3 portion structure for amplifying schematic diagram of Fig. 8;
Figure 12-the 1st, D3 ' amplifies (or side of Figure 11) structural representation among Figure 10;
Figure 12-the 2nd, the plan structure schematic diagram of Figure 12;
Figure 12-the 3rd, the D3 of Figure 12-1 " structural representation;
Figure 13 is the D4 structure for amplifying schematic diagram of Figure 10;
Figure 14-1 and Figure 14-2 is respectively support link welded construction and profile structure schematic diagram;
Figure 15 is the A node perspective view that is positioned at dam body the superiors unit;
Figure 15-1, Figure 15-2, Figure 15-3 are respectively front view, vertical view and the lateral views of Figure 15.
Five, specific embodiments:
Embodiment one: referring to Fig. 1, Fig. 2, Fig. 2-1-Fig. 2-3, Fig. 3, Fig. 3-1-Fig. 3-3, Fig. 4, Fig. 4-1-Fig. 4-3, Fig. 5, Fig. 5-1-Fig. 5-3, a kind of steel-structure dam space truss structure cell cube comprises the hexahedral space truss structure body of approximate trapezoid.The front and rear end of the hexahedral space truss structure body of this approximate trapezoid is respectively sphere of movements for the elephants shape syndeton, front end face is A, B, C, D, E, F, G, H, each plane, node place of O in Fig. 1, and rear end face is A ', B ', C ', D ', E ', F ', G ', H ', O '; Left and right, upper and lower each side of this framework is " day " font structure, left view is E, B, F, F ', each plane, node place of B ', E ' in Fig. 1, right flank is H, D, G, G ', each plane, node place of D ', H ', upper side is E, A, H, H ', each plane, node place of A ', E ', and downside is F, C, G, G ', each plane, node place of C ', F '.The said frame structure has 18 nodes.Contact relation between each node is as follows:
Front end face Centroid O (host node, promptly vertical the and level in the front end face is to the interface point of connecting rod) all is fixedly connected with support link between other arbitrary nodes in this unit; Each side mid point A, B, C, the D of front end face (or claiming upstream face) are fixedly connected with support link respectively between its opposite rear end face two summits, for example from front end face upper side edge emphasis A corresponding with A to back end two summit E ', H ' difference fixedly connected support link AE ', AH '; The rear end face center O ' (be in the rear end face vertical and level to the interface point of connecting rod) be fixedly connected with support link between each summit to back end.
Steel-structure dam unit in the present embodiment should be considered as a representative unit in the whole steel-structure dam, and a block construction that should not be considered as isolating, promptly each connecting rod of this space truss structure cell cube left surface, right flank, upper surface, soffit is respectively the common support connecting rod of its adjacent space trussed construction cell cube.So just form O, E ', F ', G ', each node of H ' has identical syndeton, as Fig. 2, Fig. 2-1, Fig. 2-2, shown in Fig. 2-3, the O point is positioned at front end face (or claiming upstream face), because O point and have annexation between other each points on every side, so the load that upstream face O is ordered disperses to pass to each node of rear end face (or claiming back side) by respective link, E ' on the rear end face, F ', G ', each node of H ' has and the identical syndeton of O point, thus on the upstream face with E ', F ', G ', the node that each node of H ' connects can compile load respectively and is delivered to E ', F ', G ', on each node of H '.O ', E, F, G, each node of H have identical syndeton, shown in Fig. 3, Fig. 3-1, Fig. 3-2, Fig. 3-3; A, B ', each node of C, D ' have identical syndeton, shown in Fig. 4, Fig. 4-1, Fig. 4-2, Fig. 4-3; A ', B, each node of C ', D have identical syndeton, shown in Fig. 5, Fig. 5-1, Fig. 5-2, Fig. 5-3.
According to above-mentioned steel-structure dam unit, all vertical link of rear end face (back side) all are designed to integrative-structure, be respectively independently vertical posts support link as rear end face C1, C2, C3 among Fig. 1.The approximate vertical posts link design of all of front end face (upstream face) is that the broken line structure (is linear structure in the unit, there is the broken line structure in front end face vertical posts connecting rod between unit and the unit), for example be fixed into the post connecting rod of band broken line by welding manner, be fixed as a polyline shaped support link as front end face C4 and C7 welding among Fig. 1, C5 and C8 welding are fixed as a polyline shaped support link, and C6 and C9 welding are fixed as a polyline shaped support link.Thereby the front end face of whole unit framework and rear end face are non-parallel structure, for example front end face and rear end face convergence (its elongated surfaces will intersect at straight line) gradually from bottom to top.The longitudinal section of whole steel-structure dam unit can be for trapezoidal.The mark of each connecting rod meets the corresponding relation of each node place connecting rod among only expression and Fig. 2-Fig. 2-3, Fig. 3-Fig. 3-3, Fig. 4-Fig. 4-3, Fig. 5-Fig. 5-3 in Fig. 1, does not have special meaning.
The connecting rod at arbitrary node place with by connecting rod between adopt engaging lug to fixedly connected.Each node that connects by engaging lug is respectively referring to Fig. 2-Fig. 2-3, Fig. 3-Fig. 3-3, Fig. 4-Fig. 4-3, Fig. 5-Fig. 5-3.At the characteristics of steel-structure dam, fixedly the time, needing on the side of this vertical posts support link, be fixed with engaging lug based on the vertical posts support link with vertical or approximate vertical posts support link (the vertical posts connecting rod is with the vertical posts support link).Described engaging lug is the board-like engaging lug of symmetry, be fixed together by gripper shoe between the engaging lug, an end of engaging lug be fixed on by on the connecting rod side, the other end docks with the connecting-rod head face, and is being fixed with brace on the adjacent side between engaging lug and the connecting rod.Fix or solid welding by rivet between the brace of side and engaging lug and level or the oblique connecting rod side.Adopt the mode of hinged ear to connect a plurality of connecting rods at a node while interference-free.
From Fig. 2 and Fig. 2-1-Fig. 2-3 as can be seen, the central point O of front end face is front end face central post connecting rod C5, near the position C8 pad, because the node that the O point connects is more, trailing flank at this central post connecting rod C5, left surface, fix six prismatic fixed support body of widening on the right flank, the leading flank of this six prismatic supporter overlaps with the leading flank of central post connecting rod C5, five sides of the residue of this six prism are left surface, left back side, trailing flank, right back side, right flank is fixed with parallel engaging lug respectively, on every pair of engaging lug is fixedly connected with tiltedly respectively, level, oblique lower link.Particularly, the engaging lug of six prismatic left sides, back, right flank is fixedlyed connected with B, O ', each node of D by the horizontal beam connecting rod respectively, i.e. MHB1, MVB2, MHB2 connecting rod; The engaging lug of six prismatic left sides, back, right flank is fixedlyed connected with E, A ', each node of H by tiltedly going up connecting rod respectively, i.e. UFX1, MB1, UFX2 connecting rod; The engaging lug of six prismatic left sides, back, right flank is fixedlyed connected with F, C ', each node of G by oblique lower link respectively, i.e. UFX3, MB2, UFX4 connecting rod; Six prismatic engaging lugs left back, right back side are fixedlyed connected with each node of B ', D ' by the horizontal beam connecting rod respectively, i.e. MX1, MX2; Six prismatic engaging lugs left back, right back side are fixedlyed connected with E ', H ' node by tiltedly going up connecting rod respectively, i.e. X1, X2 connecting rod; Six prismatic engaging lugs left back, right back side are fixedlyed connected with F ', G ' node by oblique lower link respectively, i.e. UFX3, UFX4 connecting rod.In addition, E ', F ', each node of G ', H ' have the syndeton the same with the O node.
From Fig. 3 and Fig. 3-1-Fig. 3-3 as can be seen, the central point O ' of front end face is the center apparent position of rear end face central post connecting rod C2, the left surface of central post connecting rod C2, trailing flank, right flank are fixed with parallel engaging lug respectively, the fixing parallel engaging lug of the left surface of its central post C2 and right flank is fixedly connected with respectively tiltedly and goes up, level, oblique lower link, the fixedly connected waling stripe of parallel engaging lug that the trailing flank of central post C2 is fixing.Particularly, parallel engaging lug fixing on the left surface of central post C2, the right flank is fixedlyed connected with E ', H ' node by tiltedly going up connecting rod respectively, i.e. UBX1, UBX2; Parallel engaging lug fixing on the left surface of central post C2, the right flank is fixedlyed connected with F ', G ' node by oblique lower link respectively, i.e. DBX1, DBX2; Parallel engaging lug fixing on the trailing flank of central post C2 is fixedlyed connected with the O node by the horizontal beam connecting rod, i.e. MVB2.In addition, E, F, each node of G, H have the syndeton the same with O ' node
From Fig. 4 and Fig. 4-1-Fig. 4-3 as can be seen, because it is more with the node that the side post connecting rod C1 central point B ' of rear end face is fixing, on the leading flank of this side post connecting rod C1, left surface, right flank, fix six prismatic fixed support body of widening, the trailing flank of this six prismatic supporter overlaps with the trailing flank of side post connecting rod C5, five sides of the residue of this six prism are that left surface, left front side, leading flank, right front side, right flank are fixed with parallel engaging lug respectively, and every pair of engaging lug is fixedly connected with waling stripe.Particularly, five sides of the residue of this six prism are that the fixing respectively horizontal beam connecting rod of left surface, left front side, leading flank, right front side, right flank is fixedlyed connected with each node of adjacent level face, be connecting rod MHB31, MX11, MVB1, MX2, MHB3, wherein MHB31, MX11 are and the fixing connecting rod of adjacent cells body, MVB1 is the public connecting rod of adjacent cells body, and MX2, MHB3 are this unit inside connecting rod.In addition, A, C, each node of D ' have the syndeton the same with B ' node.
From Fig. 5 and Fig. 5-1-Fig. 5-3 as can be seen, the side post connecting rod C4 upper end vertex E of front end face, left surface, trailing flank, the right flank of this post connecting rod C4 are fixed with parallel engaging lug respectively, the fixing parallel engaging lug of the trailing flank of its post connecting rod C4 is fixedly connected with respectively tiltedly and goes up, level, oblique lower link, and the fixing parallel engaging lug of the left surface of post connecting rod C4, right flank is fixedly connected waling stripe respectively.Particularly, the left surface of post connecting rod C4, the fixing parallel engaging lug of right flank are fixedlyed connected with adjacent node in the same plane by the horizontal beam connecting rod respectively, be MHB11, MHB1, wherein MHB11 is and the fixing connecting rod of adjacent cells body, and MHB1 is a stationary links in this cell cube; The fixing parallel engaging lug of the trailing flank of post connecting rod C4 respectively by tiltedly go up, level, tiltedly lower link is fixedlyed connected with E ', B ', each node of F ', i.e. LB2, MVB1, LB1, this LB2, MVB1, LB1 be the public connecting rod of this cell cube and adjacent cells body.In addition, A ', F, each node of D ' have the syndeton the same with the E node.
Each connecting rod on borderline space truss structure cell cube side or surface is this unit self support link.
Each connecting rod of steel-structure dam space truss structure cell cube can adopt square steel or i iron or its alloytype bar fixedly connected.For example the vertical posts connecting rod of truss element framework adopts square steel to be connected with level to the beam connecting rod, and oblique connecting rod adopts i iron to connect.Wherein section bars such as the square steel of specific model or i iron can be made in processing factory in advance, also can weld at the scene.
Embodiment two: referring to Fig. 6, numbering is identical with embodiment one with the numbering meaning, and content and embodiment one are basic identical, and something in common does not repeat, and different is: can also be between two parallel engaging lugs 9 fixed support plate 11.Gripper shoe 11 respectively with two engaging lugs, 9 vertical fixing, one end of described engaging lug 9 and therebetween gripper shoe 11 be fixed on by on connecting rod 8 (vertical posts connecting rod) side (be an end of engaging lug 9 with contacted by connecting rod 8 fixing, one end of gripper shoe 11 with contacted by connecting rod 8 or fixing), the other end of engaging lug 9 and gripper shoe therebetween 11 dock (or dock fix), and be fixed with brace 10 on the adjacent side between engaging lug 9 and level or the oblique connecting rod with the end face of level or oblique connecting rod 8.When adopting gripper shoe 11 structures, fix or solid welding by rivet between the brace 10 of side and engaging lug 9 and level or oblique connecting rod 8 sides.Gripper shoe 11 between the wherein symmetrical engaging lug 9 not only plays the effect of fixing two engaging lugs, and plays the effect of supporting vertical link and level or oblique connecting rod one end.
Embodiment three: accompanying drawing is not drawn, meaning and embodiment are basic identical, something in common does not repeat, and different is: described each connecting rod adopts circular shaped steel connecting rod, and the two ends of circular connecting rod are done the parallel surface processing and for example the square steel shape made at the two ends of circular connecting rod.
Embodiment four: accompanying drawing is not drawn, and meaning and embodiment are basic identical, and something in common does not repeat, and different is: arbitrary level or oblique beam connecting rod and node vertical or that be similar between the vertical post connecting rod are connected and fixed structure employing ball node syndeton.
Embodiment five: referring to Fig. 6-Figure 12, Figure 12-1-Figure 12-3, Figure 13, Figure 14-1, Figure 14-2, Figure 15, Figure 15-1-Figure 15-3, a kind of arch formula steel-structure dam by described space truss structure cell cube combination, contain steel concrete cushion cap and pre-buried fixture at the bottom of the dam, step cushion cap and built-in fitting that the two sides reinforced concrete structure builds up, whole true form according to the steel-structure dam design, dam bottom width degree, the dam body height, each sheaf space trussed construction cell cube is selected in dam body Breadth Maximum and designing requirement, two sides step number, step horizontal plane width and shoulder height are carried out Normalized Design, the built-in fitting that passes through fixedly at the bottom of the sole and dam in the steel concrete cushion cap of the post connecting rod lower end of the space truss structure cell cube of the bottom is fixed, the left side of adjacent space trussed construction cell cube, right adjacent side and last, following adjacent face has public support link and node connecting structure, be included in the left side of the space truss structure cell cube in the dam body, right flank and last, the lower surface interconnects fixing by common support connecting rod and node connecting structure each other, the connection sole of the post connecting rod lower end at the assembly two ends of every stringcourse formula space truss structure cell cube is fixedlyed connected with the horizontal plane built-in fitting of step cushion cap, the assembly of each stringcourse formula space truss structure cell cube forms the combination steel-structure dam body of the stacked syndeton of arch, be fixed with watertight shutter at steel-structure dam body upstream face, the space truss structure dam body that each space truss structure cell cube and watertight shutter are composed of a fixed connection and have the curved surface upstream face.
The rear end back side of described space truss structure dam body is the near normal face, and the longitudinal section of space truss structure dam body is restrained transition by the bottom gradually to the top.
Described watertight shutter is fixed on the upstream face of a space truss structure cell cube at least, passes through the caulking gum fixing seal between each watertight shutter.
The bottom of described dam base concrete cushion cap and both sides step concrete bearing platform is fixed on the basement rock depths by anchor pole respectively.
In auxiliary stand or dam body, be provided with dynamo-electric factory building, elevator shaft, maintenance gallery and corrosion treatment chamber.
On steel-structure dam, be provided with side and draw flood discharge passage and floodgate.
Its end face was that upstream face, rear end face are back side after steel-structure dam space truss structure cell cube was fixedly connected sequentially.Because the steel-structure dam main body is domes, so its stable main reaction that relies on the two sides arch abutment.When external applied load increases, the steel-structure dam main body will be adjusted under arch and beam effect voluntarily, and dam main body stress is redistributed.
In the present embodiment, steel-structure dam also can be designed to unsymmetric structure according to actual geographical location circumstances and stressing conditions for approximate bilateral symmetry structure, and the middle part cell density of steel-structure dam main body is bigger usually, and the cell density from the middle part to both sides diminishes gradually.
Each connecting rod or the connecting rod of the steel-structure dam among the plate embodiment can adopt shaped steel such as square steel or i iron.For example vertical posts connecting rod and level (laterally) beam connecting rod are adopted square steel, other oblique stationary links are adopted i iron or channel-section steel.Figure 14-1 expression is by the shaped steel of welding manner processing, and Figure 14-2 represents standard steel section.The dam main body can also adopt the shaped steel of field Welding specific model to construct according to actual conditions when adopting standard steel section to construct.
Connection fixed to one another between the individual unit of steel-structure dam only need be saved corresponding connecting rod in edge and be got final product, and does not describe in detail.Its connected mode and following other unit had difference slightly when the component units of Figure 15, Figure 15-1-Figure 15-3 expression steel-structure dam was positioned at the top side, this difference is as one (also can being fixed as one by the mode of weld layer broken line) independently with the superiors' transverse beam connecting rod, side at the transverse beam connecting rod of the superiors is fixed with engaging lug, and other connecting rods with the handing-over of transverse beam connecting rod are fixed by gripper shoe with corresponding engaging lug respectively.
Embodiment six: referring to Figure 10-1, meaning and embodiment one are basic identical, something in common does not repeat, different is: the back side in described steel-structure dam main body also is fixed with auxiliary stand, described auxiliary stand can adopt general trussed construction, also can adopt and the identical combining structure in embodiment Unit one.
Claims (9)
1. steel-structure dam space truss structure cell cube, it is characterized in that: comprise approximate cuboid or the hexahedral space truss structure body of approximate trapezoid, the front and rear end of described space truss structure body is approximate sphere of movements for the elephants shape trussed construction, and left surface, right flank, upper surface, soffit are approximate " day " font trussed construction; Be provided with support link between the every other node of front end face Centroid O and this space truss structure body, four intermediate node A of front end face, B, C, D is respectively equipped with support link between corresponding with it respectively four summits of rear end face, rear end face Centroid O ' and rear end face are provided with support link between four summits, on the space truss structure body, a soffit or a left side, each node of right flank is provided with and is connected and fixed structure, this space truss structure cell cube left surface, right flank, upper surface, each connecting rod of soffit is respectively the common support connecting rod of its adjacent space trussed construction cell cube, and each connecting rod of the border joint face of cell cube is this unit self support link on the border.
2. steel-structure dam space truss structure cell cube according to claim 1, it is characterized in that: arbitrary level or oblique beam connecting rod and node vertical or that be similar between the vertical post connecting rod are connected and fixed structure employing ball node syndeton, perhaps adopt engaging lug fixedly connected; Described engaging lug is the board-like engaging lug of symmetry, two symmetrical engaging lug one ends are separately fixed on the dual-side of vertical or approximate vertical posts connecting rod side of its correspondence, the two symmetrical engaging lug other ends dock with the end face of level or oblique beam connecting rod, and in two symmetrical engaging lugs and level or tilt and be fixed with brace between two link sidewalls.
3. steel-structure dam space truss structure cell cube according to claim 1, it is characterized in that: the front end face of the space truss structure of described approximate cuboid and rear end face are parallel construction, and the front end face of the hexahedral space truss structure of approximate trapezoid and rear end face are non-parallel structure.
4. arch formula steel-structure dam by the described steel-structure dam space truss structure of claim 1 cell cube combination, contain steel concrete cushion cap and pre-buried fixture at the bottom of the dam, step cushion cap and built-in fitting that the two sides reinforced concrete structure builds up, it is characterized in that: according to the whole true form of steel-structure dam design, dam bottom width degree, the dam body height, each sheaf space trussed construction cell cube is selected in dam body Breadth Maximum and designing requirement, two sides step number, step horizontal plane width and shoulder height are carried out Normalized Design, the built-in fitting that passes through fixedly at the bottom of the sole and dam in the steel concrete cushion cap of the post connecting rod lower end of the space truss structure cell cube of the bottom is fixed, the left side of adjacent space trussed construction cell cube, right adjacent side and last, following adjacent face has public support link and node connecting structure, be included in the left side of the space truss structure cell cube in the dam body, right flank and last, the lower surface interconnects fixing by common support connecting rod and node connecting structure each other, the connection sole of the post connecting rod lower end at the assembly two ends of every stringcourse formula space truss structure cell cube is fixedlyed connected with the horizontal plane built-in fitting of step cushion cap, the assembly of each stringcourse formula space truss structure cell cube forms the combination steel-structure dam body of the stacked syndeton of arch, be fixed with watertight shutter at steel-structure dam body upstream face, the space truss structure dam body that each space truss structure cell cube and watertight shutter are composed of a fixed connection and have the curved surface upstream face.
5. arch formula steel-structure dam according to claim 4 is characterized in that: the rear end back side of described space truss structure dam body is the near normal face, and the longitudinal section of space truss structure dam body is restrained transition by the bottom gradually to the top.
6. arch formula steel-structure dam according to claim 4, it is characterized in that: described watertight shutter is fixed on the upstream face of space truss structure cell cube, watertight shutter is by bolt or be weldingly fixed on the space truss unit upstream face, and the sealing sealing is set between the adjacent watertight shutter.
7. arch formula steel-structure dam according to claim 4 is characterized in that: the bottom of described dam base concrete cushion cap and both sides step concrete bearing platform is fixed on the basement rock depths by anchor pole respectively.
8. arch formula steel-structure dam according to claim 4 is characterized in that: the unit transverse width to both sides from the middle part of space truss structure dam body increases gradually, and is perhaps constant; Be fixed with the corridor, plane in the laying of surface, dam body top side.
9. according to each described arch formula steel-structure dam of claim 4-8, it is characterized in that: also be fixedly connected with auxiliary stand on the back side of dam body rear end, be provided with power plant building facility, elevator shaft, maintenance gallery in auxiliary stand or dam body, suitable place is provided with the flood discharge passage in the reservoir area landform.
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| CN101974896B (en) * | 2010-10-27 | 2011-08-31 | 华北水利水电学院 | Buttress-type steel structure dam |
| CN102140787A (en) * | 2011-04-29 | 2011-08-03 | 华北水利水电学院 | Steel cable dam |
| CN104573211B (en) * | 2014-12-30 | 2017-08-01 | 河南奥斯派克科技有限公司 | Steel construction detail drawing mask method based on BIM systems |
| CN106930590B (en) * | 2016-09-21 | 2023-03-10 | 中国地震局工程力学研究所 | Novel space grid structure ball joint device with damping function |
| CN107700434B (en) * | 2017-08-15 | 2023-03-17 | 兰州交通大学 | Arch-shaped grid type reinforced concrete debris flow blocking dam and construction method thereof |
| CN110158988A (en) * | 2019-06-28 | 2019-08-23 | 中冶建工集团有限公司 | A kind of building protection steel structure support and its quick method for dismounting |
| CN110852013B (en) * | 2019-11-14 | 2021-08-31 | 中国水利水电科学研究院 | New and old concrete load sharing calculation method for heightened gravity dam based on structural mechanics method |
| CN111101596A (en) * | 2019-12-31 | 2020-05-05 | 广西名嘉钢结构工程有限公司 | Grid structure connecting piece and application thereof |
| CN111424813B (en) * | 2020-04-30 | 2021-04-02 | 陕西建工集团股份有限公司 | Construction method for asymmetric curtain wall structure of greenhouse |
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| CN201722666U (en) * | 2010-04-26 | 2011-01-26 | 河南奥斯派克科技有限公司 | Steel dam space truss structure cell body and arch-shaped steel dam |
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| JPS58210205A (en) * | 1982-06-01 | 1983-12-07 | Kobe Steel Ltd | Controlling dam for debris flow |
| JPS63247414A (en) * | 1987-03-31 | 1988-10-14 | Kawatetsu Kenzai Kogyo Kk | Group of piles type open dam |
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| CN2215514Y (en) * | 1993-11-02 | 1995-12-20 | 原德升 | Screen-shaped retarding dam for harnessing river |
| CN2521254Y (en) * | 2002-02-10 | 2002-11-20 | 杨继华 | Steel cable flexible dam |
| CN201439595U (en) * | 2009-06-08 | 2010-04-21 | 中国水电顾问集团成都勘测设计研究院 | Reinforced structure of bedrock at downstream dam toe area of dam body |
| CN201722666U (en) * | 2010-04-26 | 2011-01-26 | 河南奥斯派克科技有限公司 | Steel dam space truss structure cell body and arch-shaped steel dam |
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