CN101634134B - Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof - Google Patents
Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof Download PDFInfo
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- CN101634134B CN101634134B CN2008101355693A CN200810135569A CN101634134B CN 101634134 B CN101634134 B CN 101634134B CN 2008101355693 A CN2008101355693 A CN 2008101355693A CN 200810135569 A CN200810135569 A CN 200810135569A CN 101634134 B CN101634134 B CN 101634134B
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- reinforcing bar
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- building block
- steel pipe
- precast concrete
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
- E01D2101/285—Composite prestressed concrete-metal
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A PSC bridge pier assembled with precast concrete segments having steel ducts and steel pipes and rebars, and a constructing method thereof are provided to erect steel wires while accumulating the segments by installing steel wire supporting steel pipes between the steel wire and a sheath pipe. A constructing method of PSC bridge pier assembled with precast concrete segments(120) having steel ducts and steel pipes and rebars(210) includes the steps of: constructing a footing(110) including sheath pipes, steel wires inserted in the sheath pipes, shear connectors which protrude upwards, rebar holes formed between the shear connectors; inserting a steel wire supporting steel pipe having the same length with the steel wire between the sheath pipe and the steel wire; inserting the rebars in the rebar holes; mounting the segment on the footing by inserting the shear connectors into connection sockets of the segment, wherein the segment includes shear connectors, the connection sockets, and rebar holes which are in lines with the rebar holes of the footing; mounting another segments on the segment by inserting shear connectors into the connection sockets; forming a coping portion(130) onthe top surface of the highest segment; and removing the steel wire supporting steel pipes, fixing the stretched steel wires, and fixing the rebars.
Description
Technical field
The present invention relates to utilize the reinforced concrete knoll and the job practices thereof of precast concrete segment assembling, more particularly, the preceding end connection that utilizes short and small steel conduit partly is arranged in pier foundation and the building block with steel conduit, steel pipe and reinforcing bar; The connection socket portion of utilizing short and small steel conduit is arranged on building block and the bent cap; For the degree of freedom of steel wire, steel pipe is inserted between sleeve pipe and the steel wire; Utilization has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and the reinforcing bar that can between steel wire and steel wire, partly imbed reinforcing bar.
Background technology
Usually, carry out the bridge construction of concrete pouring at the scene,, reduced this job practices recently in a large number because of reasons such as its engineering time length, initiation environmental problem and resentment problems.Replace the rapid constructing method that adopts prefabricated building block to assemble at the scene.
Above-mentioned rapid constructing method develops into gradually and shortens the whole bridge construction time and make environmental problem and the minimized scheme of resentment problem, and this rapid constructing method need use Large-Scale Equipment, so helps the mechanization of built environment.
When assembling this building block, can connect by front end, be provided with the front end key, with the preceding end resistance of performance based on mechanical connection in order to make the discontinuity surface between the building block.If precast concrete segment then when making building block, forms this front end key in a side of building block with boss shapes.But the front end key that forms with boss shapes in a side of building block causes fractureing of front end key because of careless easily when taking off mould.When particularly more little the and length that it is protruding of the specification of front end key was big more, the phenomenon that the front end key fractures took place in building block manufacturing process more easily.Moreover, if the part of the front end key that in mould, forms fill concrete fully then usually can not form the front end key with desired shape when the demoulding.
On the one hand, when in adjacent building block, continuously presstressed reinforcing steel being set, on the discontinuity surface between the building block, might producing and leak.Being provided with in the operation of presstressed reinforcing steel; Discontinuity surface between building block, leaking of promptly producing on the mating face of building block causes the corrosion of presstressed reinforcing steel, and this will cause the presstressed reinforcing steel damage; Thereby possibly cause serious consequence to the overall structure thing, like the collapse that causes works etc.Then, when assembling building block continuously, need to adopt extra special measure to prevent to be arranged at continuously the corrosion of the presstressed reinforcing steel in the building block.
In order to address the above problem, it is the patent of 10-0738999 (have the precast concrete segment of the package assembly of utilizing the steel conduit and assemble structure) that the applicant has proposed registration number.
As shown in Figure 1, in the inside of the precast concrete segment with package assembly of utilizing said steel conduit 10 (being designated hereinafter simply as " building block "),,, imbedded the steel conduit that is used for the front end connection with the state that connects towards the mounting direction of building block 10.Said steel conduit is made up of the cylindrical steel tube that is used to support steel wire, and the presstressed reinforcing steel that is used to import pulling force is arranged in the building block 10 with the state that connects said steel conduit 20.
As shown in the figure, the bottom of said steel conduit 20 is corresponding to below the said building block 10, but not to outer projection; The upper end of said steel conduit 20 be positioned at building block 10 above, and to outer projection.As described below, in assembling during building block 10, the upper end of said steel conduit 20 to outer projection is inserted in the bottom of the steel conduit of burying underground in the adjacent block 10 20.Between adjacent block 10; For the insertion that makes said steel conduit 20 is oversimplified; The bottom of said steel conduit 20 is made up of the expansion tube department 21 that diameter is enlarged; And, be formed with the taper draw portion 23 that diameter reduces gradually in the upper end of said steel conduit 20 with respect to the formation of this expansion tube department 21.
But owing to the end at the steel conduit forms draw portion and forms expansion tube department at the other end, therefore in the length lengthening of building block, the length of steel conduit also extends thereupon, thereby causes the increase of construction cost.
In addition, sleeve pipe is arranged on the pier foundation, in sleeve pipe, is inserted with the steel wire identical with the pier total length, steel wire produces bending when piling up building block then, thereby causes the problem that difficulty is piled up in building block.
And, when the building block that is applied to pier is connected with pier foundation, on pier foundation, do not form the leading section that is connected with building block, thereby the difficulty of the connection between building block and the pier foundation, thereby the junction surface front end possibly destroyed.
And, in pier structure, come the energy releasability of resistant to bending reinforced concrete knoll to descend with steel wire, and because of a lot of steel of needs and fixture, and increase construction cost.
Summary of the invention
In order to address the above problem; The invention provides reinforced concrete knoll and the job practices thereof of utilizing precast concrete segment assembling with steel conduit, steel pipe and reinforcing bar; Partly be arranged in pier foundation and the building block through the preceding end connection that will utilize short and small steel conduit; And be arranged on building block and the bent cap through the connection socket portion that will utilize short and small steel conduit; Thereby prevent the increase of construction cost, make the connection between building block and the pier foundation simple, and prevent that the front end at junction surface from destroying.
And; Utilization provided by the invention has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar; Degree of freedom for steel wire; Steel pipe is inserted between sleeve pipe and the steel wire, thereby the supported steel wire of steel wire is upright with steel tube place when piling up building block, thereby but has improved application property.
And; Utilization provided by the invention has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar; Through reinforcing bar is arranged between steel wire and the steel wire, make reinforcing bar bear part by steel wire bear crooked the time resistance, thereby make it have the same performance of performance that has when only making with steel; And reduced the number of steel and fixture, thereby improved economy.
And; Utilization provided by the invention has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar; Corner to pier foundation and building block carries out chamfering, adheres to packaging part in the above, thereby between building block, carries out waterproof; And add color to packaging part, thereby make it have aesthetical perception.
To achieve these goals, being characterized as of reinforced concrete construction method of the present invention:
When carrying out the pier foundation construction; Have a plurality of basis with sleeve pipe, with the identical prolongation of length of pier and be inserted in said basis with the steel wire in the sleeve pipe, to be used for a plurality of preceding end connection that is through with said steel wire that front end connects interior to top convexity, before each, has the pier foundation working procedure of the basis of certain depth with the reinforcing bar patchhole towards vertical downward direction formation between the end connection; Insert operation with the support steel wire of steel pipe with steel pipe to said pier foundation inserts that the said basis that is provided with is inserted between with sleeve pipe and steel wire and said steel wire has an equal length support steel wire; Operation is inserted with the reinforcing bar that inserts reinforcing bar in the reinforcing bar patchhole in the basis of said pier foundation; With building block respectively connect slot and above the said pier foundation each before end connection one to engage accordingly; Thereby said building block is deposited in the first top accumulation operation of said pier foundation; Have above the said building block a plurality of before end connections, the bottom surface corresponding with it has a plurality of connection slots and has that perhaps N is more corresponding and use the reinforcing bar patchhole towards the building block of vertical downward direction perforation than 1 with reinforcing bar patchhole one to one with said basis; The slot one to one that respectively is connected of end connection before each of said building block and adjacent block is bonded with each other accordingly, piles up operation thereby second of multistage is piled in building block; The bent cap of formation bent cap forms operation on the building block of the top; And remove said support steel wire with steel pipe after the said steel wire of the tension fixedly operation of said reinforcing bar being fixed when fixing.
Wherein, on said pier foundation, be provided with the building block that nothing contraction mortar is attached easily and use pit, also insert in the said pit and be provided with the valve rubber that is used for the maintenance level and is used to fill nothing contraction mortar.
Wherein, the degree of depth of said basis use reinforcing bar patchhole is the desired degree of depth when satisfying fixedly.
Wherein, said building block have for make said steel wire with support steel wire with steel pipe by perforation and corresponding and extend to the building block that is connected on the slot from said preceding end connection lower end and use sleeve pipe with sleeve pipe one to one ground with said basis.
Wherein, the top and bottom corner of the corner, bottom surface of the top building block of said building block, building block and the building block adjacent with the top building block bottom forms chamfered section respectively, and is formed with packaging part in said chamfered section.
Wherein, the lateral surface of the said preceding end connection of said building block is arranged at intervals with the first encapsulation groove of ring-type at a certain distance, is provided with first encapsulation in the said first encapsulation groove and uses valve rubber.
Wherein, said first encapsulation is with the top and said bottom surface contact that is connected slot of valve rubber.
Wherein, the said building block that is positioned at above the said building block is arranged at intervals with the second encapsulation groove of ring-type at a certain distance with the lateral surface of reinforcing bar patchhole, is provided with second encapsulation in the said second encapsulation groove and uses valve rubber.
Wherein, in said pier foundation, said support steel wire is fixed with reinforcing bar with steel pipe is supported, when piling up building block, is removed.
Wherein, said reinforcing bar is fixed with steel pipe with said support steel wire with reinforcing bar by said support.
Wherein, the said bent cap of cast-in-site on building block topmost, perhaps will the prefabricated bent cap that is built into be deposited in the top building block above.
Wherein,, be formed with the connection slot on the position corresponding, use the reinforcing bar patchhole with being formed with bent cap on the corresponding position of reinforcing bar one to said building block with end connection before the said building block one in the bottom surface of said bent cap.
Wherein, said bent cap also has corresponding with sleeve pipe one to one ground with said building block, by said steel wire with support steel wire and connect with steel pipe, and the end connection lower end extends to the bent cap that connects the slot upper end and uses sleeve pipe before said.
Wherein, before said end connection be top opening cylindrical shape or for top and bottom all open and the narrow taper that broadens gradually to the lower end in upper end.
Wherein, said connection slot is the cylindrical shape of upper closed and open underneath, and superincumbent core has and is used to connect said basis with sleeve pipe or the building block through hole with sleeve pipe.
Wherein, said before end connection when being connected slot and being bonded with each other, maintain gap (Gap), and filling has or not the contraction mortar at this gap, preceding end connection and in being connected slot.
Wherein, pile up in the operation, on said building block, behind the coating cement, adjacent building block is piled up said second.
Wherein, said reinforcing bar extends to identical with the length of pier.
Wherein, the part of said reinforcing bar extends to the length of pier, and remaining reinforcing bar extends to the certain altitude of pier, and is provided with more reinforcing bar in the bottom of pier.
Wherein, said reinforcing bar forms for being extended through union or sleeve by plural reinforcing bar.
Wherein, said basis with reinforcing bar patchhole, building block with reinforcing bar patchhole and bent cap with the reinforcing bar patchhole internal diameter bigger than the diameter of said reinforcing bar, and fill nothing contraction mortar to fix said reinforcing bar in inside.
Another feature of the present invention is:
The reinforced concrete knoll of the precast concrete segment assembling that the job practices construction of the reinforced concrete knoll through said precast concrete segment assembling with steel conduit, steel pipe and reinforcing bar forms with steel conduit, steel pipe and reinforcing bar.
Utilization of the present invention has the reinforced concrete knoll and the job practices thereof of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar; Partly be arranged in pier foundation and the building block through the preceding end connection that will utilize short and small steel conduit; Thereby prevent the increase of construction cost; Make the connection between building block and the pier foundation simple, and prevent that the front end at junction surface from destroying.
And the present invention is inserted in steel pipe between sleeve pipe and the steel wire for the degree of freedom of steel wire, thereby the supported steel wire of steel wire is upright with steel tube place when piling up building block, thereby but improved application property, and the engineering time that shortens.
And; The present invention is arranged on reinforcing bar between steel wire and the steel wire, make steel wire bear part by steel wire bear crooked the time resistance, thereby make it have the same performance of performance that has when only making with steel; And reduced the number of steel and fixture, thereby improved economy.
And the present invention carries out chamfering to the corner of pier foundation and building block, adheres to packaging part in the above, thereby between building block, carries out waterproof, and adds color to packaging part, thereby makes it have aesthetical perception.
Description of drawings
Fig. 1 is the structural representation of the building block of the existing package assembly of utilizing the steel conduit;
Fig. 2 has the perspective view of pier foundation in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;
Fig. 3 is an A-A sectional view among Fig. 2;
Fig. 4 is the plan view of Fig. 2;
Fig. 5 has the perspective view of building block in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;
Fig. 6 has the bottom surface perspective view of building block in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;
Fig. 7 is the B-B sectional view of Fig. 6;
Fig. 8 has the texture edge sketch map of reinforced concrete knoll middle cover beam of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;
The perspective view of end connection Fig. 9 a and Fig. 9 b have in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention before;
Figure 10 has the perspective view that is connected slot in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;
Figure 11 a and Figure 11 b have the structural section sketch map of reinforcing bar in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;
Figure 12 has the sectional view of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention;
Figure 13 has the sectional view of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for the utilization of another embodiment of the present invention;
Figure 14 assembles the simple process chart of the job practices of reinforced concrete knoll for the precast concrete segment that utilization of the present invention has steel conduit, steel pipe and reinforcing bar;
Figure 15 a to Figure 15 h is used to explain that utilization of the present invention has the process chart of job practices of the precast concrete segment assembling reinforced concrete knoll of steel conduit, steel pipe and reinforcing bar.
Description of reference numerals
110: pier foundation 120: building block
130: bent cap 201: steel wire
203: preceding end connection 205: connect slot
207: support steel wire with steel pipe 210: reinforcing bar
The specific embodiment
Below, the utilization that present invention will be described in detail with reference to the accompanying has the structure of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar.
Below when the present invention will be described, if when with specifying of known function or structurally associated purport of the present invention being produced unnecessary obscuring, its detailed description will be omitted.And, after the term stated be the term of considering that function in the present invention defines, this can be according to factor such as user, utilization person's intention or custom and different, so the definition that should carry out based on this manual full content of its definition.
Fig. 2 has the perspective view of pier foundation in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention; Fig. 3 is the sectional view of A-A among Fig. 2; Fig. 4 is the plan view of Fig. 2; Fig. 5 has the perspective view of building block in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention; Fig. 6 has the bottom surface perspective view of building block in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention; Fig. 7 is the sectional view of the B-B of Fig. 6; Fig. 8 has the side structure sketch map of reinforced concrete knoll middle cover beam of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention; The perspective view of end connection Fig. 9 a and Fig. 9 b have in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention before; Figure 10 has the perspective view that is connected slot in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention; Figure 11 a and Figure 11 b have the structural section sketch map of reinforcing bar in the reinforced concrete knoll of precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention; Figure 12 has the sectional view of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for utilization of the present invention, Figure 13 has the sectional view of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar for the utilization of another embodiment of the present invention.
To shown in Figure 13, pier foundation 110 cast on-site form like Fig. 2, end connection 203 before the upper end is inserted be used for that front end connects a plurality of, and preceding end connection 203 convexity upward.
Then; Pier foundation 110 have a plurality of basis with sleeve pipe 111 and on this basis the steel wire of that insert and the identical prolongation of length pier in sleeve pipe; The surface of pit 113 is chiseled (Chipping) and is made and do not have to shrink mortar and adhere to more easily, also be inserted with in the pit 113 be used for the maintenance level and be used to prevent the valve rubber 115 that leaks when shrinking mortar filling not have.At this moment, the basis is connected with the fixture 202 that is used for fixing steel wire 201 with an end of sleeve pipe 111.
And the top corner of pier foundation 110 has been preferably formed as chamfered section 117, prevents to be added the destruction of pressure device etc.
And; On the pier foundation 110 before each between the end connection 203 towards basis that vertical downward direction is formed with certain depth with reinforcing bar patchhole 119; Wherein, the degree of depth that reinforcing bar patchhole 119 is used on the basis needed degree of depth when satisfying fixedly reinforcing bar 210, wherein; The basis uses reinforcing bar patchhole 119 to form for plastic conduit, steel pipe etc. being imbedded when the construction pier foundation 110, and this can form through the job practices that forms conventional hole.
On the one hand, after the maintenance of pier foundation 110 is accomplished, between the basis is with sleeve pipe 111 and steel wire 201, insert the support steel wire identical with steel pipe 207, with supporting with reinforcing bar 101 fixed support steel wires with steel pipe 207 with steel wire 201 length.
To shown in Figure 7, building block 120 is lineal hexahedral or cylindrical shape like Fig. 5, and for substantial or hollow form, on building block, has a plurality of preceding end connections 203 and have a plurality of slots 205 that are connected in the bottom surface corresponding with it.
In addition, building block 120 also have for make steel wire 201 with supporting steel wire to be connected with steel pipe 207 with the basis with sleeve pipe 111 one to one ground corresponding and the past end connection 203 lower ends extend to be connected slot 205 upper ends building block with sleeve pipe 121.
In addition, the corner of building block 120 is formed with chamfered section 122, and on chamfered section 122, engaging has packaging part 123.Before the lateral surface of end connection 203 be arranged at intervals with at a certain distance and be provided with first encapsulation in the first encapsulation groove, 124, the first encapsulation grooves 124 of ring-type and contact with the top of valve rubber 125 and the bottom surface that is connected slot 205 with valve rubber 125, the first encapsulation.At this moment, can pour into a mould mortar to replace packaging part 123.
And; Building block 120 and basis with reinforcing bar patchhole 119 one to one or N than one (for example 2 to 1; 3 to 1) correspondence has the building block that connects towards vertical downward direction with reinforcing bar patchhole 126, wherein; Building block uses reinforcing bar patchhole 126 to form for plastic conduit, steel pipe etc. being imbedded when the construction pier foundation 110, and this can construct through the job practices that forms conventional hole.
And; The second encapsulation groove 127 that is formed with ring-type is isolated in the building block that is positioned at above the building block 120 at a certain distance with the end of reinforcing bar patchhole 126; Be provided with second encapsulation with valve rubber 128 in the second encapsulation groove 127, do not discharge to the outside when having the mortar of contraction to prevent to fill.
Like Fig. 8 to shown in Figure 12, bent cap 130 cast-in-site on building block topmost form or prefabricated after be deposited in building block topmost above form.
And,, be formed with on the position corresponding and connect slot 205 with the preceding end connection of building block 120 203 one in the bottom surface of bent cap 130.Bent cap 130 also has corresponding with sleeve pipe 121 one to one ground with building block; Connected with steel pipe 207 by steel wire 201 and support steel wire; And the past end connection 203 lower ends extend to the bent cap of connection slot 205 upper ends with sleeve pipe 131; With building block with being formed with bent cap with reinforcing bar patchhole 133 on the corresponding position of reinforcing bar patchhole 126 one to; Wherein, bent cap uses reinforcing bar patchhole 133 to form for plastic conduit, steel pipe etc. being imbedded when the construction pier foundation 110, and this can construct through the job practices in the conventional hole of constructing.
On the one hand, shown in Fig. 9 a, the preceding end connection 203 that is formed in pier foundation 110 and the building block 120 of the present invention is the open cylindrical shape in the top and bottom of steel; Wherein, Shown in Fig. 9 b, preceding end connection 203 is can also be for top and bottom open and the upper end is narrow, the taper that broadens gradually to the lower end.
In addition, shown in figure 10, what be formed at building block 120 and bent cap 130 is connected slot 205 cylindrical shape for upper closed and open underneath, and be positioned at top core also have be used to connect the basis with sleeve pipe 111 perhaps building block with the through hole 206 of sleeve pipe 121.
On the one hand, preceding end connection 203 maintains clearance G when being connected slot 205 and being bonded with each other, and filling at clearance G, preceding end connection 203 with in being connected slot 205 does not have the mortar of contraction.
In addition, the basis has or not contraction mortar with sleeve pipe 121 and bent cap with filling in the sleeve pipe 131 with sleeve pipe 111 and building block, makes that being positioned at inner steel wire 201 keeps tightening force.
In addition, shown in figure 12, reinforcing bar 210 extends to the length identical with the length of pier; Perhaps shown in figure 13, reinforcing bar 210 can also extend to the identical length of length of a part of pier, and remaining reinforcing bar 210 extends to the setting height of pier, and is provided with more reinforcing bar 210 in the bottom of pier.At this moment, reinforcing bar 210 numbers are identical with the number of steel wire 201, and perhaps the number than steel wire 201 is more.
In addition, shown in Figure 11 a, reinforcing bar 210 can form plural reinforcing bar 210 through union 211 extensions.Shown in Figure 11 b, plural reinforcing bar 210 is formed through sleeve 213 extensions, wherein, union 211 is conventional known configurations with sleeve 213, therefore omits its detailed explanation.
In addition, the basis with reinforcing bar patchhole 119 and building block with reinforcing bar patchhole 126 and bent cap with the internal diameter of reinforcing bar patchhole 133 diameter greater than reinforcing bar 210, with filling nothing contraction mortar in inside, thus fixing reinforcing bar 210.
Below, through the accompanying drawing that adds, specify the job practices that utilization of the present invention has the precast concrete segment assembling reinforced concrete knoll of steel conduit, steel pipe and reinforcing bar.
Figure 14 has the simple process chart of job practices of the precast concrete segment assembling reinforced concrete knoll of steel conduit, steel pipe and reinforcing bar for utilization of the present invention, Figure 15 a to Figure 15 h is used to explain that utilization of the present invention has the process chart of job practices of the precast concrete segment assembling reinforced concrete knoll of steel conduit, steel pipe and reinforcing bar.
At first; Shown in Figure 14 and Figure 15 a; At ground surface construction pier foundation 110; Be specially: have a plurality of basis with sleeve pipe 111, with the identical prolongation of length of pier and be inserted in said basis with 111 steel wire 201 in the sleeve pipe, be used for a plurality of preceding end connection 203 that is through with steel wire 201 that front end connects convexity upward, before each between the end connection 203 towards basis that vertical downward direction formation has certain depth with reinforcing bar patchhole 119 (S110).At this moment, pier foundation 110 is through water booster system, in the ground surface operation of pressurizeing.
And, shown in Figure 15 b, between the basis of inserting setting on the pier foundation 110 is with sleeve pipe 111 and steel wire 201, insert the support steel wire identical with steel pipe 207 (S120) with steel wire 201 length.At this moment, preferably, will support steel wire and be fixed in support with reinforcing bar 101 with steel pipe 207.
Then, shown in Figure 15 c, insert reinforcing bar 210 (S130) in reinforcing bar patchhole 119 on the basis of pier foundation 110.At this moment, shown in figure 13, for more reinforcing bar 210 is set at pedestal, with the reinforcing bar of different length, promptly the part reinforcing bar and the reinforcing bar of the remaining height that extends to pier that extend to the length of pier is inserted into the basis with reinforcing bar patchhole 119.
In addition; Shown in Figure 15 d; With the building block of processing 120 be deposited in pier foundation 110 above; For the building block that keeps pier foundation 110 level, under the state that is provided with valve rubber 115, the connection slot 205 of building block 120 and the preceding end connection 203 one to of pier foundation 110 are engaged (S140) accordingly with pit 113.At this moment, the building block through building block 120 is with sleeve pipe 121, steel wire 201 with support steel wire and connect building blocks 120 with steel pipe 207, the building block through building block 120 is with reinforcing bar patchhole 126, reinforcing bar 210 perforation building blocks 120.And,, fill not have shrink mortar in pit 113 in building block through the space between the valve rubber 115.
Shown in Figure 15 e, in this state, the building block 120 that will be built into design height again be deposited in successively be positioned at the building block 120 of having piled up above the pier foundation 110 above.At this moment, connect slot 205 and preceding end connection 203 one to be bonded with each other accordingly (S150).At this moment, will support with reinforcing bar 101 from supporting steel wire with removing steel pipe 207 and the reinforcing bar 210, to pile up building block 120.In addition, with the bottom surface epoxy resin coating of building block 120 adjacent above the building block 120, so that it mutually combines.On the one hand, shown in figure 13, for more reinforcing bar 210 is set at pedestal; The reinforcing bar 210 of earlier securing elongated certain altitude to pier; Building block 120 multistages are stacked into after the height of reinforcing bar 210, and the building block through the top building block is poured into and is not had the mortar of contraction with reinforcing bar patchhole 126; With after the building block of each building block 120 is filled nothing contraction mortar with the basis of reinforcing bar patchhole 126 and pier foundation 110 in reinforcing bar patchhole 119; Maintenance is accomplished, and makes reinforcing bar 210 fixing, again building block 120 is piled up through above-mentioned process afterwards.
Then, shown in Figure 15 f, cast-in-site the bent cap 130 or prefabricated bent cap that is built into 130 is deposited in above the building block topmost on building block topmost, this moment preceding end connection 203 be connected slot 205 be bonded with each other (S160).At this moment,, with sleeve pipe 131 steel wire 201 and support steel wire are discharged with steel pipe 207 through bent cap; , with reinforcing bar patchhole 133 reinforcing bar 210 is discharged through bent cap.
Then; Shown in Figure 15 g; To support steel wire with after steel pipe 207 extractions, tension steel wire 201 is also fixing, and pouring into reinforcing bar patchhole 133 through bent cap does not have the contraction mortar; Filling nothing contraction mortar with reinforcing bar patchhole 126 and basis in reinforcing bar patchhole 119 with reinforcing bar patchhole 133, building block at bent cap, thus fixing reinforcing bar 210 (S170).At this moment; Fixedly the conventional method of steel wire 201 is: engage fixture 202 and tension in the top; Fixture 202 through pier foundation 110 is filled mortar to the basis in sleeve pipe 111, with to building block with sleeve pipe 121 and the total length direction filling mortar of bent cap with sleeve pipe 131.And with valve rubber 128, shrinking mortar with building block with the nothing of reinforcing bar patchhole 126 fillings with reinforcing bar patchhole 133 to bent cap can be to external leaks through second encapsulation.
In addition, forward end connector 203 be connected inner filling of slot 205 and do not have the mortar of contraction.At this moment, through encapsulating with valve rubber 129 with first of the bottom surface contact that is connected slot 205, not having the mortar of contraction can be to external leaks.
On the one hand, shown in Figure 15 h, after accomplishing the pier construction, between the adjacent building block 120 and building block 120, promptly the packaging part 123 different with concrete color is set and encapsulates in chamfered section 122.At this moment,, and can in the banking process of building block 120, packaging part 123 be enclosed replacing packaging part 123 through the cast mortar.
In addition; Can also be after piling up pier foundation 110, building block 120 and bent cap 130; Bent cap through bent cap 130 is inserted into building block with reinforcing bar patchhole 126 and the inside of basis with reinforcing bar patchhole 119 with reinforcing bar patchhole 133 with reinforcing bar 120, fills then and does not have the mortar of contraction.
The present invention can take or be changed to various ways, and the detailed description of said invention has been explained the embodiment that it is concrete.What it should be understood that is that protection scope of the present invention is not to be limited to the specific embodiment of mentioning in the detailed description, but is limited the request scope that is included in claims, and is included in all distortion and sub in the purport scope of the present invention.
Claims (23)
1. a utilization has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that this job practices comprises:
The pier foundation working procedure; Wherein, Carrying out pier foundation when construction, there are a plurality of bases to use sleeve pipe, with the identical prolongation of length of pier and be inserted in said basic with the steel wire in the sleeve pipe; The a plurality of preceding end connection that is through with said steel wire that is used for the front end connection is protruding upward, before each, forms the basis with certain depth towards vertical downward direction between the end connection and uses the reinforcing bar patchhole;
Support steel wire and insert operation, wherein, use steel pipe to the support steel wire that said pier foundation inserts that the said basis that is provided with is inserted between with sleeve pipe and steel wire and said steel wire has an equal length with steel pipe;
The reinforcing bar that inserts reinforcing bar to the basis of said pier foundation in the reinforcing bar patchhole inserts operation;
First piles up operation; Wherein, With building block respectively connect slot and above the said pier foundation each before end connection one to engage accordingly; Thereby with said building block be deposited in said pier foundation above, have above the said building block a plurality of before end connections, the bottom surface corresponding with it has a plurality of connection slots and has with said basis more corresponding and use the reinforcing bar patchhole towards the building block of vertical downward direction perforation than one with reinforcing bar patchhole N;
Second piles up operation, wherein, the slot one to that respectively is connected of end connection before each of said building block and adjacent block is bonded with each other accordingly, thereby multistage is piled in building block;
The bent cap of formation bent cap forms operation on the building block of the top; And
Remove said support steel wire with steel pipe after the said steel wire of tension when fixing, the fixedly operation that said reinforcing bar is fixed.
2. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that said building block is corresponding with reinforcing bar patchhole one to said basis with the reinforcing bar patchhole.
3. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
On said pier foundation, be provided with to make and do not have shrink the building block that mortar is attached easily and use pit, also insert in this pit be provided be used for the maintenance level and be used to fill the valve rubber that does not have the contraction mortar.
4. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The degree of depth that the reinforcing bar patchhole is used on said basis needed degree of depth when satisfying fixedly reinforcing bar.
5. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Said building block have for make said steel wire with support steel wire with steel pipe by perforation and with said basis with sleeve pipe one to one ground corresponding and extend to the building block that is connected on the slot from the preceding end connection lower end of said building block and use sleeve pipe.
6. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The top and bottom corner of the bottom surface corner of the top building block of said building block, building block and the building block adjacent with the top building block bottom is formed with chamfered section respectively, and is formed with packaging part in this chamfered section.
7. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The lateral surface of the said preceding end connection of said building block is provided with first encapsulation in this first encapsulation groove and uses valve rubber to be arranged at intervals with the first encapsulation groove of ring-type.
8. utilization according to claim 7 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Said first encapsulation is with the top and said bottom surface contact that is connected slot of valve rubber.
9. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The said building block that is positioned at above the said building block is arranged at intervals with the second encapsulation groove of ring-type with the lateral surface of reinforcing bar patchhole, is provided with second encapsulation in this second encapsulation groove and uses valve rubber.
10. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
In said pier foundation, said support steel wire is fixed with reinforcing bar with steel pipe is supported, when piling up building block, is removed.
11. utilization according to claim 10 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Use reinforcing bar through said support, said reinforcing bar is fixed with steel pipe with said support steel wire.
12. utilization according to claim 5 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The said bent cap of cast-in-site on building block topmost, perhaps will the prefabricated bent cap that is built into be deposited in the top building block above.
13. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
In the bottom surface of said bent cap, be formed with the connection slot on the position corresponding with the preceding end connection of said building block one to, use the reinforcing bar patchhole with said building block with being formed with bent cap on the corresponding position of reinforcing bar patchhole one to.
14. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The preceding end connection of said building block is the open cylindrical shapes in top and bottom, the perhaps all open and narrow taper that broadens gradually to the lower end in upper end for top and bottom.
15. utilization according to claim 5 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Said connection slot is the cylindrical shape of upper closed and open underneath, and superincumbent core has and is used to connect said basis with sleeve pipe or the building block through hole with sleeve pipe.
16. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The preceding end connection of said building block maintains the gap when being connected slot and being bonded with each other, and fills at this gap, preceding end connection with in being connected slot and to have or not the contraction mortar.
17. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
Pile up in the operation said second, on said building block, behind the coating cement, adjacent building block is piled up.
18. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
It is identical with the length of pier that said reinforcing bar extends to.
19. utilization according to claim 1 has the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar, it is characterized in that,
The part of said reinforcing bar extends to the length of pier, and remaining reinforcing bar extends to the predetermined altitude of pier, and is provided with more reinforcing bar in the bottom of pier.
20. have the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar according to claim 18 or 19 described utilizations, it is characterized in that,
Said reinforcing bar forms for being extended through union by plural reinforcing bar.
21. have the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar according to claim 18 or 19 described utilizations, it is characterized in that,
Said reinforcing bar forms for being extended through sleeve by plural reinforcing bar.
22. have the job practices of reinforced concrete knoll of the precast concrete segment assembling of steel conduit, steel pipe and reinforcing bar according to any described utilization in the claim 1 to 9, it is characterized in that,
Said basis has than the diameter of said reinforcing bar bigger internal diameter with reinforcing bar patchhole and bent cap with the reinforcing bar patchhole with reinforcing bar patchhole, building block, and fills nothing in inside and shrink mortar, with fixing said reinforcing bar.
23. the reinforced concrete knoll of a precast concrete segment assembling that forms through the job practices construction of the reinforced concrete knoll of the described precast concrete segment assembling with steel conduit, steel pipe and reinforcing bar of claim 1 with steel conduit, steel pipe and reinforcing bar.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2008-0070734 | 2008-07-21 | ||
| KR1020080070734A KR101036852B1 (en) | 2008-07-21 | 2008-07-21 | Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof |
| KR1020080070734 | 2008-07-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101634134A CN101634134A (en) | 2010-01-27 |
| CN101634134B true CN101634134B (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101355693A Expired - Fee Related CN101634134B (en) | 2008-07-21 | 2008-09-03 | Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof |
Country Status (2)
| Country | Link |
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| KR (1) | KR101036852B1 (en) |
| CN (1) | CN101634134B (en) |
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| KR101143310B1 (en) * | 2009-07-21 | 2012-05-09 | 한국건설기술연구원 | Precast concrete segments for constructing bridge piers with elongated round holes surrounding reinforcing bars and the method using the same |
| CN101694087B (en) * | 2009-10-13 | 2011-05-11 | 毕承会 | Method for building novel bridge |
| CN102071643A (en) * | 2010-12-16 | 2011-05-25 | 上海市城市建设设计研究院 | Method for erecting bridge |
| KR101325245B1 (en) * | 2011-04-11 | 2013-11-05 | 연세대학교 산학협력단 | Bridge Post which is assembled by precasted units |
| CN102277828B (en) * | 2011-05-17 | 2013-12-04 | 四川省交通运输厅公路规划勘察设计研究院 | Steel and concrete combined box-shaped structured pier |
| CN102409608A (en) * | 2011-11-30 | 2012-04-11 | 上海市城市建设设计研究总院 | Prefabricated assembling structure of concrete upright post bearing platform as well as assembling and positioning process of prefabricated assembling structure |
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| KR20160130625A (en) * | 2015-05-04 | 2016-11-14 | 삼성물산 주식회사 | Prestressed Concrete Structure by Triangular Reinforcing Bar Details and Construction Method Thereof |
| CN105970803B (en) * | 2016-06-03 | 2017-12-12 | 南京工业大学 | The shearing resistance energy-dissipating device and construction method of assembled bridge pier |
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|---|---|
| KR101036852B1 (en) | 2011-05-25 |
| KR20080073279A (en) | 2008-08-08 |
| CN101634134A (en) | 2010-01-27 |
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