CN101245584A - Modularization pole system of hollow pole unit using internal constraint and building method - Google Patents
Modularization pole system of hollow pole unit using internal constraint and building method Download PDFInfo
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- CN101245584A CN101245584A CNA2007100793681A CN200710079368A CN101245584A CN 101245584 A CN101245584 A CN 101245584A CN A2007100793681 A CNA2007100793681 A CN A2007100793681A CN 200710079368 A CN200710079368 A CN 200710079368A CN 101245584 A CN101245584 A CN 101245584A
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Abstract
The invention relates to a modular column system and a construction method; the modular column system is constructed by stacking a preformed unit at least between a foundation part and a top part; the preformed unit uses a preformed hollow column unit the internal of which is restricted to form a connection part among the preformed units firmly; as the mode of a reinforcing bar and a reinforcement is not used, the modular column system realizes the short construction period and economy, the high resistance of a bending moment and the reduction of the cross-sectional area and the self weight of the preformed unit at the same time, thus leading the assembly of the modular column system to be easier and more economical and preventing the brittle rupture of the connection part among the preformed units.
Description
Technical field
The present invention relates generally to a kind of by piling up the modularization pole system that at least one prefabricated unit is built between a foundation and a top section, and its a kind of construction method.Wherein prefabricated unit utilizes a kind of hollow posts unit of internal constraint (internally confined) of prior manufacturing, and forms the coupling part between the prefabricated unit securely.Like this, because do not use reinforcing bar and reinforcing bar form, modularization pole system has been realized short construction period and economy, realized simultaneously the height drag of moment of flexure and reducing of prefabricated unit cross-sectional area and deadweight, thereby modularization pole system can be assembled easier, more economically, and prevent the brittle fracture of the coupling part between the prefabricated component.
Background technology
Usually, the bridge pier that makes up in the bridge work is the concrete structure of cast-in-site, wherein, after foundation pit excacation is at the scene finished, concrete is poured in the template that reinforcing bar is installed, and hardens one scheduled volume period, thereby forms foundation.
After the foundation sclerosis, reinforcement bar and reinforcing bar form are placed on the foundation of sclerosis, in template, pour into concrete and make its sclerosis form bridge pier.The upper section of bridge pier promptly supports the top section of bridge floor, settles the back that finishes to pour into concrete in first and second operations by the reinforcing bar form that will be supported with stand and forms.Thereby finish bridge pier.
In view of this, very long construction period and the very big cost of the dismounting need of work of the foundation of template and hardening of concrete rear pattern plate.In addition, according to building the position, problem can take place in bridge pier.For example, when building elevated road, bridge pier can produce traffic jam around the construction point.In addition, under the situation of work under bad environment, for example under water during operation, the construction of bridge pier and management be difficulty very, thereby has increased the possibility of wrong construction.
Consider these aspects, begun to be included in construction foundation that underground foundation pit excavates and made then and build bridge pier at the scene as the method for a block construction assembling bridge pier with structure.
For the advantage that realizes that the modularization bridge pier is built, because the structure that conduct unit is separately made in prefabricated mode, promptly prefabricated unit is made in factory, and this helps controlling quality of concrete.In addition, because prefabricated unit is to make continuously, and help controlling manpower and shape.In addition,, compare, might reduce construction period with cast-in-place method because prefabricated unit can be made with the construction of foundation.
By this way, the modularization bridge pier that utilizes prefabricated unit to build is disclosed in the Korean Patent (being entitled as " modularization bridge pier and rod structure and construction method thereof ") of the patent No. for 10-99113.
In this document, make a plurality of cross sections according to the height of bridge pier and be spherical, circular or avette prefabricated unit.In these prefabricated units, the top prefabricated unit has a convex in its lower end, and has a spill in the top corresponding to the below prefabricated unit of top prefabricated unit.Then, assembling top prefabricated unit and below prefabricated unit.Convex part and concave portions five different positions be provided be suitable for when to above the shear key of prefabricated unit transmission pressure, tension force, axial force and shearing force when applying moment of flexure.The construction method assembling of shear key will be in the milk and inject its central shear key groove by injection orifice from the outside.
The characteristics of the above-mentioned construction of modularization bridge pier are directly to assemble and build bridge pier structure as a block construction at the scene, and the unit firmly tolerate via shear key be passed to the there component, described shear key in conjunction with grouting injection be installed on the different directions.
Yet, when building this bridge pier, set up relatively difficulty of template in order to make manufacturing cell with convex and spill.In fact,, have to by the crane lifting by the prefabricated unit that concrete is made because it is conducted oneself with dignity, so, when building high bridge pier, greatly increased the number of prefabricated unit to be made.
Simultaneously, the bridge pier of bridge is used for bearing the load of square structure on it downwards when active force transmits, and as the critical piece of resisting such as the lateral load of earthquake.Therefore, bridge pier should be designed to resist normal load, lateral load, moment of flexure or the like.
Consider this point, the design of bridge pier is based on the notion of plastic hinge, and plastic hinge can make the core concrete powerful compressive deformation of opposing and have the ability of dissipation energy.This means that bridge pier is ductile, can make plasticity deformation resist continuous load and be unlikely to reduce significantly anti-stress or rigidity.
The very big influence that the responsive corrections coefficient of considering in anti-earthquake design is received this ductility ability.In bridge, the extension ability of bridge pier has accounted for the major part of the extension ability of whole bridge.
At present, the design standard of road and railway bridge has been stipulated the transverse reinforcement ratio, with the bridge pier plastic hinge extension ability partly that guarantees earthquake and lateral load.Based on the transverse reinforcement ratio, the reinforced concrete bridge pier with solid section is built widely, and has good load support ability.
Yet, the reinforced concrete bridge pier of solid section has many shortcomings: it is because deadweight is difficult to the scene that foundation runs into structure problem, and owing to increased the expense of concrete material, unfavorable economically, and because the generation of hydration heat when fluid concrete has the possibility that the crack takes place.
For this reason, although have some shortcoming of expenditure of construction aspect, people begin to pay close attention to the steel bridge pier of the construction period that has good extension ability and lack.
Yet the width of the steel bridge pier thickness than the bridge floor that constitutes bridge pier usually is big relatively, thereby when earthquake takes place, has the problem that is easy to take place bird caging.
Usually, in order to address this problem the steel pipe (CFT) that uses concrete to fill.CFT refers to and is filled with concrete steel tubular structure with circle or angle section.Because concrete is limited in the steel pipe, CFT has the advantage that can prevent bird caging admirably, good extension ability, and increased bending resistance square ability and have small cross section and deadweight owing to comparing with available coagulation soil bridge pier.
Yet the problem that CFT has is that its Master Cost is very high.In addition, when building high pier, CFT still has the problem of cross section and deadweight increase, thereby is not suitable for the conditional field condition of generous ratio.In addition, CFT has the maintenance issues that prevents its corrosion under corrosion becomes the field condition of problem, for example situation of underwater foundation.
In addition, have because concrete excessive deadweight, or during the structure problem of the higher relatively generation of concrete material cost, used to have hollow profile, rather than had the bridge pier or the post of solid section at the post of the bridge pier of bridge or bridge.
The bridge pier of this hollow profile or post are expected to be has very high practicality, because compare with common bridge pier or post, and not very big the weakening of bending resistance square ability.
Especially,, be necessary to design to have the bridge pier or the post that can bear bigger bending moment, in addition, also require transverse displacement owing to antiseismic design becomes focus at present.Thereby in the time of design bridge pier that can bear bigger bending moment or post, the bridge pier of hollow profile or post according to circumstances may be better because its inside is the deadweight that reduced of sky.
Yet because be difficult to its concrete effect of restraint of expection, the extension ability of the bridge pier of hollow profile or post is doubtful.In other words, because the brittle fracture effect that produces in hollow profile inside because there not being the concrete effect of restraint, bridge pier or post with hollow profile demonstrate relatively poor extension ability in practice.
But, up to the present, with regard to the modularization bridge pier that proposes, the excessive deadweight of not special research when using concrete to make prefabricated unit, the high expense of raw materials when substituting concrete and use CFT, when building high pier, whether introduce hollow profile as solving the approach that section and deadweight increase as raw material, the brittle fracture of the hollow profile during in use empty section, and the maintenance when being used for underwater foundation for example and using CFT.
Summary of the invention
Therefore, the present invention keeps it in mind the problems referred to above that occur in the prior art, thereby an object of the present invention is to provide a kind of modularization pole system that uses the hollow posts unit of at least one internal constraint, the hollow posts unit of wherein said internal constraint comprises an outer tube part of being made by steel or fibre reinforced plastics (FRP), one is filled with concrete and forms the concrete part of a cavity in outer tube part, and one be installed in the cavity of concrete part, the interior tube portion of making by steel or FRP, tube portion retrains described concrete part in described, thereby build the advantage that produces owing to use general modularization pole system, because cavity, and owing to the deadweight that is caused by the cross-sectional area minimizing reduces the easy assembling that the unit is provided and builds economy, and improved corrosion resistance by interior tube portion and the outer tube part of under the situation of for example underwater foundation, making by FRP.
To achieve these goals, according to one aspect of the present invention, provide a kind of modularization pole system that uses the hollow posts unit of at least one internal constraint.Described modularization pole system comprises at least one prefabricated unit that is installed between foundation and the top section, and is used for prefabricated unit is fixed to foundation, prefabricated unit is interfixed and top section is fixed to the device of prefabricated unit.Described prefabricated unit is a kind of hollow posts unit of internal constraint, it comprises the concrete part that an outer tube part, of being made by steel or fibre reinforced plastics (FRP) is filled with concrete and forms a cavity in outer tube part, and one is installed in the cavity of concrete part, interior tube portion that made by steel or FRP and that retrain described concrete part.
Therefore, the mode of construction of modularization pole system of the present invention is for to make the hollow posts unit of internal constraint be connected to the upper section of foundation by fastening devices, so that the hollow posts element stack of internal constraint and be connected on the hollow posts unit of connection, until the design height of modularization pole system, and make top section be connected to the upper section of hollow posts unit of the internal constraint of the top.
Description of drawings
When read in conjunction with the accompanying drawings, above-mentioned and other purpose, feature and other advantage of the present invention will more be expressly understood from following detailed description, wherein:
Fig. 1 is to use at least one stereogram according to the hollow posts unit of the internal constraint in the modularization pole system of the hollow posts unit of internal constraint of the present invention;
Fig. 2 is the phantom that illustrates as the hollow posts unit of the internal constraint of parts of the present invention, and wherein tube portion forms a cylindrical tube in one of the hollow posts unit of internal constraint;
Fig. 3 is the phantom that illustrates as the hollow posts unit of the internal constraint of parts of the present invention, and wherein tube portion forms a corrugated tube in one of the hollow posts unit of internal constraint;
Fig. 4 is the stereogram that a shear connector is shown, and described shear connector is mounted to a hollow posts unit as the internal constraint of parts of the present invention extraly;
Fig. 5 is the sectional view that illustrates as the hollow posts unit of the internal constraint of parts of the present invention, and wherein shear connector is connected to the interior tube portion and the outer tube part of the hollow posts unit of internal constraint;
Fig. 6 shows and is being stacked between foundation and the top section and by the sectional view of fastening devices at the interconnective state in connecting portion office according to the hollow posts unit of internal constraint of the present invention;
Fig. 7 shows according to the exploded perspective view that is in the state of hollow posts element stack between foundation and top section of internal constraint of the present invention;
Fig. 8 shows the stereogram according to the rod type element that comprises a main part and a head of one embodiment of the invention;
Fig. 9 shows according to the foundation of one embodiment of the invention and the hollow posts unit of the internal constraint of hollow posts unit, the top of hollow posts unit, two adjacent internal constraints of the internal constraint of below, and top section is by the exploded perspective view of the fixing state of fastening devices;
Figure 10 shows according to the exploded perspective view of the common coupling part between the hollow posts unit of internal constraint of the present invention by the state of support member connection;
Figure 11 schematically shows and uses at least one to build the process of modularization pole system according to the hollow posts unit of internal constraint of the present invention; And
Figure 12 is that explanation uses at least one to build the flow chart of the method for modularization pole system according to the hollow posts unit of internal constraint of the present invention.
The specific embodiment
Now will be in more detail with reference to a typical embodiments of the present invention, an one shown in the drawings embodiment.In the case of any possible, identical Reference numeral will being used in reference to for identical or similar parts in drawing and description in the whole text.
As shown in Figure 1, interior tube portion 13 is installed in the cavity 14 of concrete part 12, thereby it has retrained concrete part 12.Thereby concrete part 12 is under the triaxial pressure load.Therefore, when making prefabricated unit, the cavity 14 of concrete part 12 is made for the deadweight that reduces prefabricated unit, so that assembling, thereby has prevented accidental brittle fracture in the cross section of cavity 14 of concrete part 12.In addition, inserted interior tube portion 13, and reduced the deadweight of cross section and prefabricated unit, thereby the hollow posts unit 10 of internal constraint is preferably as the prefabricated unit that assembles bridge pier with the drag of reinforcement to moment of flexure.
When building an ordinary construction, interior tube portion 13 and outer tube part 11 are preferably made of steel, thereby have guaranteed the drag to moment of flexure.
Yet, when being built into the structure of in corrosive atmosphere, using, for example, underwater foundation, interior tube portion 13 and and outer tube part 11 can make by the fibre reinforced plastics with corrosion resistance and ductility (FRP).More preferably, FRP is selected from the material of the condition that is applicable to built on-site, for example adds the FRP of reinforcing material, such as carbon FRP, aramid fiber FRP (AFRP), glass FRP (GFRP), or the like.In addition, the use of this type of FRP has reduced the deadweight of structure by way of parenthesis, thereby assembling is more prone to.
As shown in Figure 1, the diameter D1 of cavity 14 can regulate in factory, so that consider the cost etc. of deadweight, concrete material in assembling after, satisfy the needs of the condition of built on-site.
Make cavity 14 to pass through concrete part 12.Thereby, as shown in Figure 2, to make under the situation of cylindrical tube 13a at interior tube portion 13, cavity 14 is cylindrical, thereby integrally formed with interior pipe 13a.As shown in Figure 3, make under the situation of corrugated tube 13b at interior tube portion 13, cavity 14 cylindrical wave columns, thus integrally formed with corrugated tube 13b.
As shown in Figures 2 and 3, interior tube portion 13 can adopt the cylindrical tube 13a with smooth surface, perhaps has the convex surface alternately and the corrugated tube 13b of concave surface.
Under the situation that adopts cylindrical tube 13a, has the advantage that it can apply drag to axial compressive force and moment of flexure.Under the situation of using corrugated tube 13b, have the good result of confined concrete part 12, thereby be applicable to bird caging that prevents interior tube portion 13 and the ductility that increases prefabricated unit, so that it can suitably be selected for use according to the condition of construction site.
As shown in Figure 5, outer tube part 11 is provided with a plurality of shear connectors (shear connector) 16, described shear connector is used to guarantee and the unified behavior of concrete part 12 that described shear connector is connected on the inner surface of the outer tube part 11 that links to each other with concrete part 12.
Similarly, as shown in Figure 5, interior tube portion 13 also is provided with a plurality of shear connectors 16, and described shear connector is used to guarantee and the unified behavior of concrete part 12 that described shear connector is connected on the external surface of the interior tube portion 13 that links to each other with concrete part 12.
Under the situation that interior tube portion 13 and outer tube part 11 are formed from steel, shear connector 16 is formed from steel.Thereby preferably, shear connector 16 is soldered on the inner surface of the external surface of the interior tube portion 13 that is connected with concrete part 12 and outer tube part 11.At this moment, preferably, by keeping the brittle fracture that prevents the weld zone between interior tube portion 13 or outer tube part 11 and each shear connector 16 than each the bigger intensity in interior tube portion 13 and outer tube part 11 and the shear connector 16.
Simultaneously, under the situation that interior tube portion 13 and outer tube part 11 are made by FRP, shear connector 16 is made by FRP.Thereby preferably, shear connector 16 is incorporated in on the inner surface of the external surface of the interior tube portion 13 that is connected with concrete part 12 and outer tube part 11.At this moment, preferably, by keeping the brittle fracture that prevents the weld zone between interior tube portion 13 or outer tube part 11 and each shear connector 16 than each the bigger intensity in interior tube portion 13 and outer tube part 11 and the shear connector 16.
As shown in Figure 4, each shear connector 16 comprises a reinforcing section 16a and intermediolateral column part (stud portion) 16b, described reinforcing section is a plate shape, and on the axial direction of unit, connect, and play the opposing unit and twist, described intermediolateral column part is integrally formed with described reinforcing section 16a, and in the connecting with plate shape in the radial direction of unit, and the unified behavior of tube portion 13 and outer tube part 11 and concrete part 12 in guaranteeing.Thereby, the unified behavior of tube portion 13 and outer tube part 11 and concrete part 12 in each shear connector 16 can be made and be used to guarantee, and performance prevents the function of prefabricated unit distortion.
Simultaneously, as shown in Figure 6 and Figure 7, the device of hollow posts unit 10 that is used for fixing the internal constraint of foundation 20 and the top comprises a plurality of foundation anchor holes 21 that form at the upper section of foundation 20, that form in part below the concrete part 12, relative with foundation anchor hole 21 a plurality of below anchor hole 15b, a plurality of rod type elements 40 that are inserted between below anchor hole 15b and the foundation anchor hole 21, and the grouting 50 of hold-down bars linear element 40.
In addition, be used for fixing top section 30 and the device of the hollow posts unit 10 of the internal constraint of below comprise a plurality of top section anchor holes 31 that part forms below top section 30, form at the upper section of concrete part 12 relative with top section anchor hole 31 a plurality of above anchor hole 15a, a plurality of rod type elements 40 that are inserted between top anchor hole 15a and the top section anchor hole 31, and the grouting 50 of hold-down bars linear element 40.
Equally, the device that is used for fixing the hollow posts unit 10 of two adjacent internal constraints comprise a plurality of below the upper section of hollow posts unit 10 of internal constraint form above anchor hole 15a, the below anchor hole 15b relative that the below of the hollow posts unit 10 of a plurality of internal constraints up partly forms with top anchor hole 15a, a plurality of rod type elements 40 that are inserted between top anchor hole 15a and the below anchor hole 15b, and the grouting 50 of hold-down bars linear element 40.
These fastening devicess are built into the hollow posts unit 10 of the internal constraint of below are connected to foundation 20, connect the hollow posts unit 10 of two adjacent internal constraints, and the hollow posts unit 10 and top section 30 that connect the internal constraint of the top, this connection is by inserting anchor hole 15a with rod type element 40,15b, 21 and 31, harden then rod type element 40 and anchor hole 15a, 15b, the grouting 50 between 21 and 31 realizes.
For firmer connection is provided, as shown in Figure 8, the head 42 that rod type element 40 comprises main part 41 and is positioned at the opposite end of main part 41, head 42 is thicker than main part 41.Preferably, when rod type element 40 is inserted anchor hole 15a, 15b, 21 and 31 o'clock, just connect by injecting grouting 50, each rod type element 40 is owing to the ladder of each head 42 obtains more firmly connecting.Each rod type element 40 is preferably made by rod iron etc., and its moment of flexure adjustment that produces according to the coupling part 80 by the hollow posts unit 10 of internal constraint such as the size of length.
Preferably, rod type element 40 and anchor hole 15a, 15b, 21 and 31 number is according to the moment of flexure adjustment of coupling part 80 generations of the hollow posts unit 10 of internal constraint.
The use of grouting 50 not only is used for rod type element 40 is connected to anchor hole 15a, 15b, and 21 and 31, be used to also prevent that rod type element 40 from corroding under the situation that rod type element 40 is made by the mixture of rod iron and cement paste or mortar.Preferably, the flowability of grouting 50 and dilatancy are applicable to and closely fill anchor hole 15a, 15b, 21 and 31.
As shown in Figure 6 and Figure 7, foundation 20 is provided with a pole unit and inserts groove 22, and the hollow posts unit 10 of the internal constraint of below is inserted in the described groove 22.Thereby the hollow posts unit 10 of the internal constraint of below can be stacked on the foundation 20 securely.According to the shape of the hollow posts unit 10 of the internal constraint of below, foundation 20 can form circle, quadrangle or similar shape.
According to one embodiment of the invention, as shown in Figure 9, be used for fixing foundation 20 and the device of the hollow posts unit 10 of the internal constraint of below comprise a below external flange 62a and a plurality of securing member 101 such as bolt, described lower outer flange 62a is connected with the outer tube part 11 of the hollow posts unit 10 of the internal constraint of below, and be provided with a plurality of lower outer fixing hole 63a, described securing member 101 passes lower outer fixing hole 63a, insert among a plurality of foundation external stability hole 23a of upper portion office of foundation 20, and lower outer flange 62a is fixed to foundation 20.
Lower inner flange 62b is connected with the lower inner periphery of the interior tube portion 13 of the hollow posts unit 10 of the internal constraint of below, and is provided with a plurality of lower inner fixing hole 63b.A plurality of securing members 101 such as bolt pass lower inner fixing hole 63b, insert among the foundation internal fixation hole 23b of upper portion office of a plurality of foundations 20.Thereby, be used for fixing foundation 20 and the device of the hollow posts unit 10 of the internal constraint of below preferably prevented the foundation 20 and the fragility of the coupling part 80 between the hollow posts unit 10 of the internal constraint of below.
As shown in Figure 9, the device of hollow posts unit 10 that is used for fixing the internal constraint of top section 30 and the top comprises the top external flange 60a that is connected and is provided with a plurality of top external stability hole 61a with the top outer periphery of the outer tube part 11 of the hollow posts unit 10 of the internal constraint of the top, and a plurality of securing members 101 such as bolt, described securing member 101 passes top external stability hole 61a, insert among a plurality of top section external stability hole 32a that the below of top section 30 partly locate, and top external flange 60a is fixed to top section 30.
Upper inner flange 60b is connected with the upper interior periphery of the interior tube portion 13 of the hollow posts unit 10 of the internal constraint of the top, and is provided with a plurality of upper interior fixing hole 61b.A plurality of securing members 101 such as bolt pass upper interior fixing hole 61b, insert among a plurality of top section internal fixation hole 32b that the below of top section 30 partly locate, and upper inner flange 60b is fixed to top section 30.Thereby the device of hollow posts unit 10 that is used for fixing the internal constraint of top section 30 and the top has preferably prevented the fragility of the coupling part 80 between the hollow posts unit 10 of internal constraint of top section 30 and the top.
In addition, the device that is used for fixing the hollow posts unit 10 of two adjacent internal constraints comprises that one is connected with the top outer periphery of the outer tube part 11 of the hollow posts unit 10 of lower inner constraint, and be provided with the top external flange 60a of a plurality of top external stability hole 61a, one is connected with the lower outer periphery of the outer tube part 11 of the hollow posts unit 10 of the internal constraint of top, and be provided with the lower outer flange 62a of the relative lower outer fixing hole 63a of a plurality of and described a plurality of top external stability hole 61a, and a plurality of setting tools 100 such as screw bolt and nut, described setting tool 100 passes top external stability hole 61a and lower outer fixing hole 63a and top external flange 60a and lower outer flange 62a is fixed with each other.
Upper inner flange 60b is connected with the upper interior periphery of the interior tube portion 13 of the hollow posts unit 10 of lower inner constraint, and is provided with a plurality of upper interior fixing hole 61b.Lower inner flange 62b is connected with the lower inner periphery of the interior tube portion 13 of the hollow posts unit 10 of upper interior constraint, and is provided with a plurality of lower inner fixing hole 63bs relative with a plurality of upper interior fixing hole 61b.A plurality of setting tools 100 such as screw bolt and nut pass upper interior fixing hole 61b and lower inner fixing hole 63b and upper inner flange 60b and lower inner flange 62b is fixed with each other.Thereby the device that is used for fixing the hollow posts unit 10 of two adjacent internal constraints has preferably prevented the fragility of the coupling part 80 between the hollow posts unit 10 of two adjacent internal constraints.
The outer diameter D 5 of each top external flange 60a and lower outer flange 62a equals the inside diameter D 3 of interior tube portion 13 of the hollow posts unit 10 of internal constraint.Thereby, the inner surface of the opposite end of tube portion 13 in top external flange 60a and lower outer flange 62a can be connected to by the mode of welding.Perhaps, interior tube portion 13 by situation about making such as the plastics of FRP under, the inner surface of opposite end of tube portion 13 in top external flange 60a and lower outer flange 62a can be connected to by the mode of bonding.
According to another embodiment of the present invention, as shown in figure 10, the device that is used for fixing the hollow posts unit 10 of two adjacent internal constraints comprises an external support component 70a, and described external support component 70a is connected to the neighboring of the coupling part 80 between the hollow posts unit 10 of above and below internal constraint with batten shape.
One internal support 70b is connected to the inner rim of the coupling part 80 between the hollow posts unit 10 of above and below internal constraint with batten shape.Thereby the device that is used for fixing the hollow posts unit 10 of two adjacent internal constraints has preferably prevented the fragility of the coupling part 80 between the hollow posts unit 10 of above and below internal constraint.
Under the situation that outer tube part 11 and interior tube portion 13 are formed from steel, external support component 70a and internal support 70b are connected to the neighboring and the inner rim of the coupling part 80 between the hollow posts unit 10 of above and below internal constraint by the mode of welding, perhaps outer tube part 11 and interior tube portion 13 by situation about making such as the plastics of FRP under, the mode by bonding connects.Thereby external support component 70a and internal support 70b have prevented the fragility of the coupling part 80 between the hollow posts unit, above and below 10.
As mentioned above, when adjacent hollow posts unit 10 uses flange 60a, 60b, 62a and 62b or support member 70a and 70b to interconnect, they at first 50 interconnect by being inserted in the rod type element 40 among top anchor hole 15a and the below anchor hole 15b and being in the milk, be fixed to its flange then or by setting tool, perhaps be connected to coupling part 80 by support member 70a and 70b such as screw bolt and nut.Thereby, can prevent the fragility of the coupling part 80 in the modularization pole system.
In addition, be connected to the upper section of foundation 20 in the hollow posts unit 10 of internal constraint, perhaps under the situation of the below part of top section 30, they are at first by being inserted between below anchor hole 15b and the foundation anchor hole 21 and the rod type element 40 between top anchor hole 15a and the top section anchor hole 31 and being in the milk 50 interconnects, yet connect by fixture 101 such as bolt, described fixture 101 is fixed to the upper section of foundation 20 by lower outer flange 62a and lower inner flange 62b, perhaps is fixed to the below part of top section 30 by top external flange 60a and upper inner flange 60b.Thereby, can prevent the fragility of the coupling part 80 in the modularization pole system.
Simultaneously, as Figure 11 and shown in Figure 12, build to use at least one method to be included in the step S1 that builds after the pit excavation work with the foundation 20 of a plurality of foundation anchor holes 21 according to the modularization pole system of the hollow posts unit of internal constraint of the present invention.
In the step S1 that builds foundation 20, the pole unit insertion groove 22 of the hollow posts unit 10 of the internal constraint below the insertion can form at the upper section of foundation 20 therein.
Grouting 50 is injected into (step S2) in the foundation anchor hole 21.
Before grouting 50 sclerosis in step S2 in the foundation anchor hole 21, inserted and be connected to be placed on the upper section of foundation 20 below internal constraint hollow posts unit 10 pole unit below rod type element 40 among the anchor hole 15b, be inserted in the foundation anchor hole 21 that is marked with grouting 50, the hollow posts unit 10 of Xia Fang internal constraint just is connected (S3) on the foundation so.
Under the situation below the hollow posts unit 10 of the internal constraint below rod type element 40 insertions among the anchor hole 15b, below grouting 50 is injected, before the anchor hole 15b, insert among the anchor hole 15b of below rod type element 40 unimportant at the scene.Yet, in this case, owing to needing spended time sclerosis grouting to delay the construction time, therefore, for economy, and reduce construction period, the hollow posts unit 10 of internal constraint is preferably prefabricated in factory, and rod type element 40 is inserted and is connected among the anchor hole 15b of below.
The hollow posts unit 10 of the internal constraint below the connection of step S3 is to foundation, and the lower inner flange 62b that has the lower outer flange 62a of a plurality of lower outer fixing hole 63a and have a plurality of lower inner fixing hole 63b is connected to the lower outer periphery and the lower inner periphery of hollow posts unit 10 of the internal constraint of the below on the upper section that is placed on foundation respectively.Then, fixture 101 just is fixed among the foundation external stability hole 23a and internal fixation hole 23b of upper section of foundation 20, thereby lower outer flange 62a and lower inner flange 62b are connected on the foundation 20.
Then, grouting 50 is injected step S3 be placed on the upper section of foundation 20 below internal constraint hollow posts unit 10 above anchor hole 15a (S4).
Before grouting 50 sclerosis above in step S4 among the anchor hole 15a, inserted and be connected to be placed on foundation 20 below the hollow posts unit 10 of internal constraint on internal constraint hollow posts unit 10 below rod type element 40 among the anchor hole 15b, be inserted among the top anchor hole 15a of the hollow posts unit 10 of the internal constraint of below that is marked with grouting 50, adjacent like this hollow posts unit 10 just is interconnected on together (step S5).
According to one embodiment of the invention, in the hollow posts unit 10 interconnective step S5 that make internal constraint, the hollow posts unit 10 of internal constraint respectively is provided with top external flange 60a and lower outer flange 62a, and upper inner flange 60b and lower inner flange 62b, interconnect with setting tool 100 then.
In addition, according to another embodiment of the invention, in the hollow posts unit 10 interconnective step S5 that make internal constraint, coupling part 80 between the hollow posts unit 10 of internal constraint is connected to external support component 70a on its outer periphery and the internal support 70b on the interior periphery, thereby the hollow posts unit 10 of internal constraint is interconnected.
The hollow posts unit 10 of internal constraint piles up and is connected to the design height (step S6) of modularization pole system by repeating step S4 and S5.
Then, grouting 50 is injected step S6 be placed on the top on the upper section of foundation 20 internal constraint hollow posts unit 10 above anchor hole 15a (step S7).
Before grouting 50 sclerosis above in step S7 among the anchor hole 15a, inserted and be connected the rod type element 40 in the top section anchor hole 31 of below part of top section 30, be inserted among the top anchor hole 15a that is marked with grouting 50, the hollow posts unit 10 of the internal constraint of the top just is connected to top section (step S8) like this.
Can know obviously that from foregoing description the modularization pole system and the construction method thereof of the hollow posts unit of foundation at least one internal constraint of use of the present invention have following advantage.
At first, use the hollow posts unit of internal constraint, increased the drag to moment of flexure, wherein the concrete part is retrained by interior tube portion, thereby is under the triaxial pressure load.Therefore, the hollow posts unit of internal constraint has reduced cross-sectional area and deadweight separately, thereby makes assembling easier.
The second, the amount of concrete that the cavity of the hollow posts unit of internal constraint make to use still less, reduced the hollow posts unit of each internal constraint cross-sectional area, eliminated form needs, eliminated the use of steel bar, or the like.Thereby, obtained reduction the beneficial effect of the economy of human cost be installed.
The 3rd, the cavity of the hollow posts unit of internal constraint respectively is provided with by interior tube portion and the outer tube part made such as the plastics of FRP, so that they can use in corrosive atmosphere, for example, therefore underwater foundation helps safeguarding.Under the situation of using FRP, the hollow posts unit of internal constraint can reduce deadweight.
The 4th, by the firm connection of coupling part, can avoid the fragility of the coupling part between the cavity of hollow posts unit of internal constraint.
Although for the purpose of example, a preferred embodiment of the present invention has been described, it will be understood by those skilled in the art that various modifications, interpolation and the replacement that can not depart from as the disclosed the scope and spirit of the present invention of claims.
Claims (14)
1. modularization pole system that uses the hollow posts unit of at least one internal constraint, described modularization pole system comprises:
Be installed at least one prefabricated unit between foundation and the top section; And
Be used for prefabricated unit is fixed to foundation, prefabricated unit is interfixed and top section is fixed to the device of prefabricated unit,
Wherein said prefabricated unit is the hollow posts unit of internal constraint and comprises: the outer tube part of being made by steel or fibre reinforced plastics (FRP), be filled with concrete and form the concrete part of cavity in outer tube part, and be installed in the cavity of concrete part, interior tube portion that made by steel or FRP and the confined concrete part.
2. modularization pole system according to claim 1 is characterized in that, described interior tube portion comprises cylindrical tube.
3. modularization pole system according to claim 1 is characterized in that, described interior tube portion comprises alternately being the corrugated tube of convex surface and concave surface.
4. modularization pole system according to claim 1, it is characterized in that, in described outer tube part and the interior tube portion at least one has at least one the shear connector among a plurality of apparent surfaces that are connected to described outer tube part and interior tube portion, and described a plurality of shear connectors have guaranteed at least one and the unified behavior of concrete part in outer tube part and the interior tube portion.
5. modularization pole system according to claim 4 is characterized in that, described each shear connector comprises:
Reinforcing section, described reinforcing section connect with plate shape on the axial direction of unit, and play the distortion of opposing unit; And
The intermediolateral column part, described intermediolateral column part is integrally formed with described reinforcing section, in connecting with plate shape in the radial direction of unit, and tube portion and outer tube part and concrete unified behavior partly in guaranteeing.
6. modularization pole system according to claim 1 is characterized in that:
The device that is used for fixing the hollow posts unit of foundation and internal constraint comprises: a plurality of foundation anchor holes that form at the upper section of foundation, that form in part below the concrete part, relative with the foundation anchor hole a plurality of below anchor hole, a plurality of rod type elements that are inserted between below anchor hole and the foundation anchor hole, and the grouting of hold-down bars linear element; And
The device that is used for fixing the hollow posts unit of top section and internal constraint comprises: a plurality of top section anchor holes that part forms below top section, that form at the upper section of concrete part, relative with the top section anchor hole a plurality of above anchor hole, a plurality of rod type elements that are inserted between top anchor hole and the top section anchor hole, and the grouting of hold-down bars linear element.
7. modularization pole system according to claim 1 is characterized in that:
The device that is used for fixing the hollow posts unit of foundation and internal constraint comprises: lower outer flange and a plurality of securing member, described lower outer flange is connected with the lower outer periphery of the hollow posts unit of internal constraint, and be provided with a plurality of lower outer fixing holes, described securing member passes the lower outer fixing hole, insert in a plurality of foundation external stabilities hole of upper portion office of foundation, and the lower outer flange is fixed to foundation; And
The device that is used for fixing the hollow posts unit of top section and internal constraint comprises: be connected and be provided with the top external flange in external stability hole, a plurality of top with the top outer periphery of the hollow posts unit of internal constraint, and a plurality of securing members, described securing member passes external stability hole, top, insert in a plurality of top section external stabilities hole of the below of top section partly locating, and the top external flange is fixed to top section.
8. modularization pole system according to claim 1 is characterized in that:
The device that is used for fixing the hollow posts unit of foundation and internal constraint comprises: lower inner flange and a plurality of securing member, described lower inner flange is connected with the lower inner periphery of the interior tube portion of the hollow posts unit of internal constraint, and be provided with a plurality of lower inner fixing holes, described securing member passes the lower inner fixing hole, insert in a plurality of foundation internal fixation hole of upper portion office of foundation, and lower inner flange is fixed to foundation; And
The device that is used for fixing the hollow posts unit of top section and internal constraint comprises: be connected and be provided with the upper inner flange of a plurality of upper interior fixing holes with the upper interior periphery of the hollow posts unit of internal constraint, and a plurality of securing members, described securing member passes the upper interior fixing hole, insert in a plurality of top section internal fixation hole of the below of top section partly locating, and upper inner flange is fixed to top section.
9. modularization pole system according to claim 1, it is characterized in that, the device of hollow posts unit of internal constraint of being used to interfix comprises: a plurality of below the upper section of hollow posts unit of internal constraint form above anchor hole, a plurality of internal constraints up the hollow posts unit below part form with above anchor hole relative below above the anchor hole, a plurality of being inserted in anchor hole and below rod type element between the anchor hole, and the grouting of hold-down bars linear element.
10. modularization pole system according to claim 1, it is characterized in that, the device of hollow posts unit of internal constraint of being used to interfix comprises: be connected and be provided with the top external flange in external stability hole, a plurality of top with the top outer periphery of the hollow posts unit of the internal constraint of below, connect and be provided with the lower outer flange of the relative lower outer fixing hole in external stability hole, a plurality of and described a plurality of top with the lower outer periphery of the hollow posts unit of the internal constraint of top, and a plurality of setting tools, described setting tool passes external stability hole, top and lower outer fixing hole and top external flange and lower outer flange is fixed with each other.
11. modularization pole system according to claim 1, it is characterized in that, the device of hollow posts unit of internal constraint of being used to interfix comprises: be connected and be provided with the upper inner flange of a plurality of upper interior fixing holes with the upper interior periphery of the hollow posts unit of the internal constraint of below, connect and be provided with the lower inner flange of the relative lower inner fixing hole of a plurality of and described a plurality of upper interior fixing hole with the lower inner periphery of the hollow posts unit of the internal constraint of top, and a plurality of setting tools, described setting tool passes upper interior fixing hole and lower inner fixing hole and upper inner flange and lower inner flange is fixed with each other.
12. modularization pole system according to claim 1, it is characterized in that, the device of hollow posts unit of internal constraint of being used to interfix comprises external support component, and described external support component is the neighboring of the coupling part between batten shape and the hollow posts unit that is connected to the internal constraint of placing in succession.
13. modularization pole system according to claim 1, it is characterized in that, the device of hollow posts unit of internal constraint of being used to interfix comprises internal support, and described internal support is the inner rim of the coupling part between batten shape and the hollow posts unit that is connected to the internal constraint of placing in succession.
14. method of building the modularization pole system of the hollow posts unit that uses at least one internal constraint, wherein said modularization pole system comprises at least one prefabricated unit that is installed between foundation and the top section, with being used for prefabricated unit is fixed to foundation, prefabricated unit is interfixed and top section is fixed to the device of prefabricated unit, described method comprises the steps:
After finishing pit excavation work, build foundation, to form a plurality of foundation anchor holes (S1);
To be in the milk and inject foundation anchor hole (S2);
To insert and be connected the rod type element in the anchor hole below the hollow posts unit of the internal constraint on the upper section of foundation to be placed, insert and to be marked with in the foundation anchor hole of grouting, the hollow posts unit of internal constraint is connected to foundation (S3);
Grouting is injected the top anchor hole (S4) of the hollow posts unit of internal constraint;
With insert and be connected the internal constraint on the hollow posts unit of adjacent internal constraint to be placed the hollow posts unit below rod type element in the anchor hole, insert in the top anchor hole of hollow posts unit of the internal constraint be marked with grouting, with the hollow posts unit of internal constraint interconnect (S5);
By repeating the 4th step S4 and the 5th step S5, pile up and the hollow posts unit (S6) that is connected internal constraint;
Anchor hole (S7) above the hollow posts unit of the 6th step S6 internal constraint that place, the top is injected in grouting; And
Before the grout hardens above in the 7th step S7 in the anchor hole, with the rod type element that inserts and be connected in the top section anchor hole of below part of top section, insert and to be marked with in the top anchor hole of grouting, the hollow posts unit of the internal constraint of the top is connected to top section (S8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100793681A CN101245584A (en) | 2007-02-15 | 2007-02-15 | Modularization pole system of hollow pole unit using internal constraint and building method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100793681A CN101245584A (en) | 2007-02-15 | 2007-02-15 | Modularization pole system of hollow pole unit using internal constraint and building method |
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| Publication Number | Publication Date |
|---|---|
| CN101245584A true CN101245584A (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100793681A Pending CN101245584A (en) | 2007-02-15 | 2007-02-15 | Modularization pole system of hollow pole unit using internal constraint and building method |
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| CN (1) | CN101245584A (en) |
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| CN105369739A (en) * | 2015-12-07 | 2016-03-02 | 中铁大桥局上海工程有限公司 | Bridge prefabricated structure assembly connection method and bridge |
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