CN109736146A - A kind of late poured band structure for straddle type monorail rail tracks Simply supported non-uniform - Google Patents
A kind of late poured band structure for straddle type monorail rail tracks Simply supported non-uniform Download PDFInfo
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- CN109736146A CN109736146A CN201910143390.0A CN201910143390A CN109736146A CN 109736146 A CN109736146 A CN 109736146A CN 201910143390 A CN201910143390 A CN 201910143390A CN 109736146 A CN109736146 A CN 109736146A
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Abstract
The invention discloses a kind of late poured band structures for straddle type monorail rail tracks Simply supported non-uniform, belong to cross-saddle single-track traffic technical field, by setting long for the jointing for stretching out track girder end face, short staggered form, and it pours afterwards and length is set on the end face of the track girder that band is correspondingly connected with it, short staggered jointing, so that the lengthening joint on the first track girder end face corresponds to the short circuit head on the second track girder end face, the lengthening joint on the corresponding second track girder end face of short circuit head on first track girder end face, realize being staggered for connection sleeve, complete the process of track girder Simply supported non-uniform.Late poured band structure of the invention, its structure is simple, easy construction, it can effectively realize the conversion of straddle-type monorail Simple Rail Bearer to continuous track beam, guarantee the force stability and linear precision of straddle-type monorail continuous track beam, the comfortableness and security of cross-saddle single-track traffic are promoted, with good application prospect and application value.
Description
Technical field
The invention belongs to cross-saddle single-track traffic technical fields, and in particular to one kind is used for straddle type monorail rail tracks freely-supported
Become continuous late poured band structure.
Background technique
Cross-saddle single-track traffic is one kind of urban track traffic, often has that noise is small, adaptable, occupied area
Small, the advantages that construction cost is low, the construction period is short, the construction period of cross-saddle single-track traffic is often not as good as the subway construction period
Half, cost are also only one third of subway or so, but belong to the Rail Transit System of medium-heavy road traffic, can very great Cheng
Improve the traffic problems in city on degree.Therefore, straddle-type monorail has obtained a degree of application in China urban, and
Start to plan and build in more and more cities.
In the track girder setting up procedure of cross-saddle single-track traffic, the linear precision of track girder is that an important examination refers to
Mark, often affects the operation stability and comfort of straddle-type monorail train.In actual work progress, straddle-type list
Rail track girder is usually to obtain after being correspondingly connected with by several track beam elements successively set up along longitudinal direction, to guarantee track beam element
Linear high-precision, beam body often uses prefabrication, then will be prefabricated after track beam element it is corresponding set up, connection and adjustment,
Form the track girder of straddle-type monorail.Under normal circumstances, it needs to correspond to the shape with simply supported beam on the bridge pier of several certain spans
Track beam element is arranged in formula, then the end of adjacent two tracks beam element is correspondingly connected with post-cast strip, forms continuous track girder
Structure that is to say the process of straddle type monorail rail tracks Simply supported non-uniform.
It is both at home and abroad two by way of more currently, being directed to the construction of straddle type monorail rail tracks Simply supported non-uniform
Late poured band structure is set between Simple Rail Bearer unit, which is usually prestressed reinforced concrete construction, in post-cast strip
After the completion of pouring, needs to continue tensioning and pass through elongated rope or the tackline of post-cast strip to form final continuous orbit girder construction.
Although the above method can realize to a certain extent the process of straddle type monorail rail tracks Simply supported non-uniform, and complete straddle-type monorail
The setting of continuous track beam；But since its needs in post-cast strip pours post-stress rope, this can be to having adjusted
Track girder is linear to be impacted, and is destroyed the linear precision of track girder beam body, is caused under cross-saddle single-track traffic running comfort
Drop, influences the application and popularization of cross-saddle single-track traffic.
Summary of the invention
One or more of aiming at the above defects or improvement requirements of the prior art, the present invention provides one kind to be used for
The late poured band structure of straddle type monorail rail tracks Simply supported non-uniform, wherein passing through the jointing shape for being preferably provided with track girder end face
Formula effectively realizes the process of straddle type monorail rail tracks Simply supported non-uniform, ensure that the linear precision of continuous track beam, is promoted
The comfortableness and security of cross-saddle single-track traffic.
To achieve the above object, the present invention provides a kind of post-cast strip knot for straddle type monorail rail tracks Simply supported non-uniform
Structure is set between the first track girder and the second track girder set up in the form of freely-supported respectively, to be used for two Simple Rail Bearers
It is connected as continuous track beam along longitudinal direction, which is characterized in that
The late poured band structure can by end to cast-in-place between positive first track girder and second track girder
Normal concrete obtains, and both ends of the surface are close to the end face of two track girders respectively, and top surface and two sides flush in two siding tracks respectively
The top surface and two sides of beam；
The end face of second track girder described in one side end face face of first track girder, and set along longitudinal direction on the end face
Multiple connection reinforcing bars for protruding from end face are equipped with, jointing is formed, the jointing is divided into the first track beam-ends
Two sides, the top and bottom in face comprising the first short circuit head and length are greater than the first lengthening joint of first short circuit head, and described the
One short circuit head and first lengthening joint are vertically arranged alternately in the two sides of first track girder, and are set to first rail
The jointing density on the top Dao Liang is greater than the jointing density set on its underpart；
First short circuit head and described is respectively corresponded on the end face of first track girder described in the second track girder face
First lengthening joint is provided with the second lengthening joint and the second short circuit head, and makes two track girders with end face to after just, and described first is short
Connector can with corresponding second lengthening joint coaxially to just, first lengthening joint can with corresponding second short circuit head coaxially to just,
And first short circuit head can connect sleeve with second lengthening joint with first and be correspondingly connected with, first lengthening joint can be with institute
State that the second short circuit head is correspondingly connected with the second connection sleeve and the first connection sleeve and the second connection sleeve are vertical
Upward spacing be greater than jointing length, the jointing being then correspondingly connected on two track girder end faces be coated on it is described after
It pours in band structure, to realize the connection of first track girder and second track girder, completes straddle type monorail rail tracks
The process of Simply supported non-uniform.
As a further improvement of the present invention, first short circuit head positioned at first track girder top is adjacent thereto
First lengthening joint and muscle setting, and form connector unit, the top two sides of first track girder respectively vertically between
Every being provided with multiple connector units.
As a further improvement of the present invention, first short circuit head of first track girder lower part institute adjacent thereto
It states the first lengthening joint and is vertically spaced setting.
As a further improvement of the present invention, the top of first track girder is laterally spaced is provided with multiple described connect
Transversely alternate intervals are provided with several first short circuit heads and several for the bottom of head unit and/or first track girder
First lengthening joint.
As a further improvement of the present invention, between the connector unit of first track girder top two sides vertically waits
Away from setting.
As a further improvement of the present invention, the wall thickness of the first connection sleeve is equal to the wall of the second connection sleeve
Thickness, and the vertical spacing of two connectors is equal to the wall thickness of the first connection sleeve in the connector unit.
As a further improvement of the present invention, the first connection sleeve and the second connection sleeve are respectively mechanical set
Cylinder.
As a further improvement of the present invention, the first connection sleeve and the second connection sleeve are respectively to lock mother
Type straight screw sleeve or tapered sleeve splice.
As a further improvement of the present invention, multiple first connections sleeves are vertically concordantly arranged and/or multiple
The second connection sleeve is vertically concordantly arranged.
As a further improvement of the present invention, the late poured band structure is non-prestressed concrete structure.
Above-mentioned improved technology feature can be combined with each other as long as they do not conflict with each other.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit:
(1) late poured band structure for straddle type monorail rail tracks Simply supported non-uniform of the invention, by the way that rail will be stretched out
The jointing in road beam-ends face is set as long and short staggered form, and pours the end face that band is correspondingly connected with its track girder afterwards
The upper long and short staggered jointing of setting, so that the lengthening joint on the first track girder end face corresponds on the second track girder end face
Short circuit head, the lengthening joint on the corresponding second track girder end face of short circuit head on the first track girder end face, realizes the friendship of connection sleeve
Mistake setting, not only effectively meets the requirement of jointing area percentage on same jointing, also effectively reduces track
The clear distance of beam top and muscle, ensure that the anti-fatigue performance and force stability of post-cast strip；
(2) late poured band structure for straddle type monorail rail tracks Simply supported non-uniform of the invention, by being preferably provided with
The jointing distribution form of track girder upper and lower part is vertically spaced setting by long short circuit head and muscle on track girder top
The connector unit of formation is vertically spaced setting lengthening joint and short circuit head in track girder lower part, sufficiently meets the stress of post-cast strip
Demand simplifies the working procedure of track girder Simply supported non-uniform, reduces the waste of material, promote the setting economy of late poured band structure
And force stability；
(3) late poured band structure for straddle type monorail rail tracks Simply supported non-uniform of the invention, by preferably connecting
Sleeve is to lock parent form straight screw sleeve or tapered sleeve splice, effectively realizes jointing and is unable under rotation situation, after
The stabilization strong ties for pouring corresponding joints in band, improve the structural stability of post-cast strip, it is ensured that straddle-type monorail continuous orbit
The stability of beam extends the service life of track beam structure, it is ensured that the linear precision that track beam structure is used for a long time；
(4) late poured band structure for straddle type monorail rail tracks Simply supported non-uniform of the invention, structure is simple, construction
Simplicity can effectively realize that Simple Rail Bearer becomes the process of continuous track beam, guarantee that the stress of straddle-type monorail continuous track beam is steady
Qualitative and linear precision, promotes the comfortableness and security of cross-saddle single-track traffic, answers with good application prospect with popularization
With value.
Detailed description of the invention
Fig. 1 is that the vertical profile of the late poured band structure in the embodiment of the present invention for straddle type monorail rail tracks Simply supported non-uniform shows
It is intended to；
Fig. 2 be in the embodiment of the present invention for straddle type monorail rail tracks Simply supported non-uniform late poured band structure A-A to
Cross sectional view；
Fig. 3 is the schematic diagram that the adjacent two connections sleeve of late poured band structure in the embodiment of the present invention is staggeredly arranged；
Fig. 4 is the schematic diagram that the adjacent two connections sleeve of late poured band structure in the prior art is vertically arranged side by side；
In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: 1. post-cast strips, 101. connect
Female connector cylinder；2. the first track girder, 201. first short circuit heads, 202. first lengthening joints；3. the second track girder, 301. second length are connect
Head, 302. second short circuit heads.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Constituting conflict can be combined with each other.
Late poured band structure such as Fig. 1 and figure of straddle type monorail rail tracks Simply supported non-uniform are used in the preferred embodiment of the present invention
It is normal concrete structure shown in 2, is generally arranged at two track girders while the bridge pier crossbeam of erection, and be correspondingly arranged
Between the track beam element that two successively set up along longitudinal direction, i.e., the first track girder 2 and the second track girder 3 as shown in Figure 1 it
Between, and the first track girder 2 and the second track girder 3 that are set up in the form of freely-supported are connected as continuous straddle type monorail rail tracks.
Certainly, it in order to preferably show the setting form for connecting reinforcing bar in the preferred embodiment of the present invention, does not show that in fig. 1 and 2
Distributing bar and its internal molding concrete in post-cast strip, track girder.
Further, it is preferable to which the first track girder 2 in embodiment is as shown in Fig. 1,2, cross section is in rectangular configuration, rail
Two sides, the top and bottom of road beam are vertically arranged with jointing respectively.Wherein, jointing is by protruding from the first track girder
The connection reinforcing bar of 2 the second track girder of face, 3 end face is correspondingly formed, and track girder end face is stretched out in the one end for connecting reinforcing bar, and the other end is solid
It is scheduled in corresponding track girder, and according to the distribution of force feature of straddle type monorail rail tracks post-cast strip, post-cast strip is generally in
Under hogging moment effect, the top of post-cast strip is located at tensile stress concentration zones, it is therefore desirable to the setting of encryption connection connector, and post-cast strip
The stress that bears of lower part it is relatively small, therefore the setting of its jointing comparatively disperses, as shown in Figure 2.
Further, dynamic load is born when straddle-type monorail train is run due to straddle type monorail rail tracks, and
Accounting of the dynamic load in total load head often beyond 40% so that the setting of late poured band structure must satisfy it is certain antifatigue
It is required that and according to the requirement of related specifications, beam class component is located at the jointing area percentage of same jointing should be big
In 50%.It is therefore preferable that the link position in embodiment by the first track girder 2 and the second track girder 3 in post-cast strip is staggered.
And specifically, it is preferable to which the jointing for protruding from 2 end face of the first track girder in embodiment includes that prominent end face is shorter
The first short circuit head 201 and prominent longer first lengthening joint 202 in end face, as shown in fig. 1；Further, in the first track
The two sides of 2 lower part of beam, the first short circuit head 201 and the first lengthening joint 202 vertically setting spaced apart, and in the first track
The two sides on 2 top of beam, the first short circuit head 201 and the first lengthening joint 202 are vertically and muscle is arranged, integral connector unit, and connect
The two lesser distance in connector interval in head unit, and make two connectors that one connection sleeve can only be set on same cross section,
That is the thickness of less than twice connection sleeve of the distance at two connector intervals, more than or equal to the thickness of connection sleeve；Further,
The two sides on one track girder, 2 top are vertically arranged at intervals with several connector units；Correspondingly, on the top edge of the first track girder 2
Being horizontally arranged at interval has multiple connector units, and is transversely staggeredly arranged at intervals with several first in the bottom of the first track girder 2
Short circuit head 201 and several first lengthening joints 202.
It is further preferred that spacing in preferred embodiment between the adjacent head unit in 2 top of the first track girder two with
It is gradually reduced at the top of the first track girder 2 and/or the first short circuit head 201 of 2 lower part of the first track girder is adjacent thereto first
The spacing of lengthening joint 202 is gradually increased with close to 2 bottom of the first track girder；Certainly, the adjacent head in 2 top of the first track girder two
Spacing between unit identical can also be arranged, and be equal to 2 the first short circuit head of lower part of the first track girder 201, first length adjacent thereto and connect
Spacing between first 202, this can be carried out preferably according to actual needs, if meet late poured band structure stress need and it is antifatigue
Performance.
Further, it is preferable to the second track girder 3 in embodiment is as shown in fig. 1, one side end face the first track of face
The end face of beam 2, and corresponding first short circuit head 201 is vertically arranged with the second lengthening joint 301, and corresponding first length on the end face
Connector 202 is vertically arranged with the second short circuit head 302, so that the first track girder 2 and 3 end face of the second track girder be to after just, first
Short circuit head 201 and corresponding second lengthening joint 301 are coaxially to just, and the first lengthening joint 202 and corresponding second short circuit head 302 are same
Axis is to just, as shown in fig. 1.Further, it is long to be equal to first for the sum of the first short circuit head 201 and the length of the second lengthening joint 301
The sum of the length of connector 202 and the second short circuit head 302, so that the corresponding joints of the first track girder 2 and the second track girder 3 are coaxial
After just, the spacing between two connectors is identical, to guarantee the connective stability and uniformity of each jointing.
According to the requirement of relevant design specification: the jointing area percentage in same jointing should not exceed
50%.And the length of so-called " jointing " is usually a specific number, and it is straight that connection reinforcing bar is commonly defined as in specification
N times of diameter, that is, can be regarded as: any one section with jointing length in interception post-cast strip, the section length range
The percentage that interior steel bar connector quantity accounts for connection number of steel bars should not exceed 50%.
Therefore, corresponding to the late poured band structure in preferred embodiment, it is only necessary to meet the number of jointing on arbitrary cross section
Amount accounts for the percentage of the connection number of steel bars on the section no more than 50%, and the spacing of two groups of longitudinally disposed jointings
Greater than jointing length.
In a preferred embodiment of the invention, the jointing in late poured band structure is divided into longitudinal direction as shown in Figure 1
Two sides, in the region that jointing is concentrated, due to lengthening joint and short circuit head vertically arranged for interval, so that in jointing institute
The jointing percentage located on cross section is equal to 50%, meets the requirement of specification；Then be correspondingly arranged the first short circuit head 201 with
Fore-and-aft distance of second lengthening joint, 301 junction away from 302 junction of the first lengthening joint 202 and the second short circuit head is greater than the post-cast strip
The length of middle jointing, i.e. fore-and-aft distance between 202 end of 201 end of the first short circuit head and the first lengthening joint are greater than
The length of jointing, and the fore-and-aft distance between 302 end of 301 end of the second lengthening joint and the second short circuit head is greater than bonding pad
The length of section.In this way, the requirement in design specification to jointing area percentage can be met.
Further, it is calculated according to anti-fatigue performance, coaxially to needing to connect using mechanical sleeves are corresponding between two positive connectors
It connects, i.e., is correspondingly connected with using connection sleeve 101 as shown in Figure 1, vertically due to the joint length on two track girder end faces
It is staggered, then to connect the vertically interlaced arrangement of sleeve 101, the area that not only can satisfy jointing is arranged such
Percentage requirement can also reduce the clear distance of simultaneously muscle to a certain extent, find out as that can correspond in Fig. 3 and Fig. 4.Wherein, it is used in Fig. 3
Be connection sleeve 101 be staggered, in Fig. 4 using connection sleeve 101 vertically be arranged side by side, it is not difficult to find out that, two in Fig. 3
Clear distance l minimum between jointing can be equal to the sum of jointing diameter and single times of sleeve wall thickness, and two jointing in Fig. 4
Between clear distance L minimum only have to be equal to the sum of jointing diameter and twice of sleeve wall thickness.Therefore, 101 or more sleeve will be connected
The form of stating, which is staggered, can effectively reduce the clear distance of simultaneously muscle, increase the anti-fatigue performance of post-cast strip.
Further, since the connection reinforcing bar being embedded in track girder is not able to rotate in connection, it is therefore preferable that embodiment
In connection sleeve preferably lock parent form straight screw sleeve or tapered sleeve splice.
Prestressing force late poured band structure is set in compared to the prior art, the late poured band structure tool in the preferred embodiment of the present invention
There is significant progress, specifically, track girder is linear after tensioning is difficult to control for the late poured band structure using elongated Cable Structure
System, and integrin beam is reeved relatively difficult after setting a roof beam in place, difficulty of construction is larger, and construction cost greatly increases；And for using tackline knot
The late poured band structure of structure, since its tackline section is limited, post-cast strip is only capable of designing by partial prestressed structure, and deck-molding needs to increase
Add, increase difficulty of construction and construction cost, and need to open prestressing force kerve in roof and floor, landscape is poor.And the present invention is preferred
Late poured band structure in embodiment is normal concrete structure, is non-prestressed structure, can not only effectively realize that simply supported beam becomes
The process of continuous beam, moreover it is possible to effectively avoid above-mentioned defect existing in the prior art.
The late poured band structure of straddle type monorail rail tracks Simply supported non-uniform, structure letter are used in the preferred embodiment of the present invention
Single, setting is easy, and the length of the jointing of track girder end face is stretched out by being preferably provided with, so that two track girders are corresponding with end face
After just, the sleeve that connection is correspondingly connected with connector can be staggered, and not only meet same jointing jointing area
The requirement of percentage also effectively reduces the clear distance of track girder top and muscle, improves the anti-fatigue performance and stress of post-cast strip
Stability, and the jointing by being preferably provided with track girder upper and lower part be arranged form, i.e., track girder top stress compared with
For concentration region lengthening joint and short circuit head be set and muscle form, increase the density of setting of connector, and track girder lower part by
The lesser region setting lengthening joint of power and the alternate form of short circuit head, have been effectively ensured the force stability of post-cast strip, it is ensured that
The linear precision of straddle type monorail rail tracks improves running comfort and the safety of cross-saddle single-track traffic, has preferable
Application prospect and application value.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of late poured band structure for straddle type monorail rail tracks Simply supported non-uniform is set to and is set up in the form of freely-supported respectively
The first track girder and the second track girder between, with for two Simple Rail Bearers to be connected as continuous track beam along longitudinal direction,
It is characterized in that,
The late poured band structure can by end to cast-in-place common between positive first track girder and second track girder
Concrete obtains, and both ends of the surface are close to the end face of two track girders respectively, and top surface and two sides flush in two sides track girder respectively
Top surface and two sides；
The end face of second track girder described in one side end face face of first track girder, and be vertically arranged on the end face
Multiple connection reinforcing bars for protruding from end face, form jointing, and the jointing is divided into first track girder end face
Two sides, top and bottom comprising greater than the first lengthening joint of first short circuit head, described first is short for the first short circuit head and length
Connector and first lengthening joint are vertically arranged alternately in the two sides of first track girder, and are set to first track girder
The jointing density on top is greater than the jointing density set on its underpart；
First short circuit head and described first are respectively corresponded on the end face of first track girder described in the second track girder face
Lengthening joint is provided with the second lengthening joint and the second short circuit head, and makes two track girders with end face to after just, first short circuit head
Can be with corresponding second lengthening joint coaxially to just, first lengthening joint can be with corresponding second short circuit head coaxially to just, and institute
It states the first short circuit head and can connect sleeve with second lengthening joint with first and be correspondingly connected with, first lengthening joint can be with described
Two short circuit heads are correspondingly connected with the second connection sleeve and the first connection sleeve and described second connects sleeve in the longitudinal direction
Spacing be greater than the length of jointing, the jointing being then correspondingly connected on two track girder end faces is coated on the post-cast strip
In structure, to realize the connection of first track girder and second track girder, straddle type monorail rail tracks freely-supported is completed
Become continuous process.
2. the late poured band structure according to claim 1 for straddle type monorail rail tracks Simply supported non-uniform, wherein be located at
First short circuit head on first track girder top, first lengthening joint adjacent thereto and muscle setting, and form connector
Unit, the top two sides of first track girder are vertically arranged at intervals with multiple connector units respectively.
3. the late poured band structure according to claim 1 or 2 for straddle type monorail rail tracks Simply supported non-uniform, wherein
First lengthening joint that first short circuit head of first track girder lower part is adjacent thereto is vertically spaced setting.
4. the late poured band structure according to claim 2 for straddle type monorail rail tracks Simply supported non-uniform, wherein described
The laterally spaced bottom edge for being provided with multiple connector units and/or first track girder in the top of first track girder
Lateral alternate intervals are provided with several first short circuit heads and several first lengthening joints.
5. the late poured band structure according to claim 2 for straddle type monorail rail tracks Simply supported non-uniform, wherein described
The connector unit on the first track girder top two sides vertically spaced set.
6. the late poured band structure according to claim 2 or 5 for straddle type monorail rail tracks Simply supported non-uniform, wherein
It is described first connection sleeve wall thickness be equal to it is described second connection sleeve wall thickness, and in the connector unit two connectors it is vertical
Spacing is equal to the wall thickness of the first connection sleeve.
7. being tied described according to claim 1~any one of 6 for the post-cast strip of straddle type monorail rail tracks Simply supported non-uniform
Structure, wherein it is described first connection sleeve and it is described second connection sleeve be respectively mechanical sleeves.
8. the late poured band structure according to claim 7 for straddle type monorail rail tracks Simply supported non-uniform, wherein described
First connection sleeve and the second connection sleeve are respectively to lock parent form straight screw sleeve or tapered sleeve splice.
9. being tied described according to claim 1~any one of 8 for the post-cast strip of straddle type monorail rail tracks Simply supported non-uniform
Structure, wherein multiple first connection sleeves are vertically concordantly arranged and/or multiple second connection sleeves are vertical
Upper concordant setting.
10. being tied described according to claim 1~any one of 9 for the post-cast strip of straddle type monorail rail tracks Simply supported non-uniform
Structure, wherein the late poured band structure is non-prestressed concrete structure.
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| CN101225639A (en) * | 2008-01-28 | 2008-07-23 | 上海市城市建设设计研究院 | Construction technology for freely-supported variable continuous box-beam structure and freely-supported variable continuous box-beam structure thereof |
| CN103437294A (en) * | 2013-08-19 | 2013-12-11 | 北京交通大学 | Implementation method for multiple stress systems of beam bridge in straddle type monorail transport line |
| CN103485279A (en) * | 2013-10-08 | 2014-01-01 | 北京交通大学 | Wet joint for straddle type monorail traffic |
| CN203769116U (en) * | 2014-03-11 | 2014-08-13 | 朱彤 | Prefabricated through hole assembly type reinforced concrete shear wall |
| CN108625281A (en) * | 2018-04-12 | 2018-10-09 | 中国十七冶集团有限公司 | A kind of wet seam connection method of simple-supported thencontinuous bridge |
| KR101930674B1 (en) * | 2018-04-13 | 2018-12-18 | 김연종 | Spliced Prestressed Concrete Girder and Fabrication Method for Thereof |
| CN108691272A (en) * | 2018-05-28 | 2018-10-23 | 中铁第四勘察设计院集团有限公司 | Combine the sleeve connection structure and its construction method of formed precast concrete floorings |
| CN109162157A (en) * | 2018-09-17 | 2019-01-08 | 中国建筑第八工程局有限公司 | The construction method of track girder |
| CN209798448U (en) * | 2019-02-26 | 2019-12-17 | 中铁第四勘察设计院集团有限公司 | Post-cast strip structure for simply supporting and continuously changing straddle type monorail track beam |
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