WO2016162881A2

WO2016162881A2 - Precast segments for elevated transit rail station

Info

Publication number: WO2016162881A2
Application number: PCT/IN2016/000086
Authority: WO
Inventors: Kumar Mohan NARESH; Raja PRABU; Renganathan BALAMAHESHWARAN
Original assignee: Naresh Kumar Mohan; Prabu Raja; Balamaheshwaran Renganathan
Priority date: 2015-04-07
Filing date: 2016-04-06
Publication date: 2016-10-13
Also published as: WO2016162881A3

Abstract

The present invention relates to the segmental construction and configuration of transit rail elevated stations by inventing precast segments and specially shaped concrete planks which replace existing construction methods elevated transit rail station. Single piece of precast segments like bow-shaped segment (la, lb) combines both station viaduct and platform portions, Hybrid section (2) for concourse portion provide space for operational areas/bus way. segments erected by launching girder, pre-stressed at site and lowered over the bearing, using invented sections separate construction activity for station platform and viaduct, wider Concourse portion can be eliminated and precast planks for skywalk and entry structures.

Description

PRECAST SEGMENTS FOR ELEVATED TRANSIT RAIL STATION FIELD OF INVENTION

[0001] This invention relates to the segmental construction and configuration of transit rail elevated stations by inventing precast segments and specially shaped concrete planks which replace existing construction methods elevated transit rail stations.

BACKGROUND AND PRIOR ART

[0002] Existing system of elevated transit rail station concourse level and platforfn level made by either conventional system or precast girders with insitu deck concreting may cause difficulty in site construction and traffic congestion during construction in urban areas as well as time period.

[0003] In the prior art the station spans at concourse level, platform level and station viaduct made of I-girders. However incremental launching is not applicable hence it requires staging at site and in-situ concerting for the decks. Similarly in some other prior arts, even with excluding station viaduct made of segmental U-shaped section and segmental box girders also requires staging at site and in-situ concerting for the decks.

[0004] Therefore, there is a need for a precast single piece segments for double level elevated transit rail stations to avoid site concreting and effectively usage of launching girders or gantry girders construction methodology at site. Further there is a need for specially shaped precast planks for skywalk and entry structure to reduce traffic congestion.

OBJECTS OF THE INVENTION

[0005] Some of the objects of the present disclosure are described herein below:

[0006] A main object of the present invention to provide a precast single piece segments for double level elevated transit rail stations to avoid site concreting and effectively usage of launching girders or gantry girders construction methodology at site.

object of the present invention is to provide specially shaped precast .planks-for^sky alk - and- entry-structure to reduce- constmctiffn^{^}tirne^f ^"station entry arms,

[0008] Still another object of the present invention to provide a precast single piece segments for double level elevated transit rail stations to reduce construction time.

[0009] The other objects and advantages of the present invention will be apparent from the following description when read in conjunction with the accompanying drawings, which are incorporated for illustration of preferred embodiments of the present invention and are not intended to limit the scope thereof.

SUMMARY OF THE INVENTION

[OOOiO] In view of the foregoing, an embodiment herein provides a transit rail station of double level comprising of, at least one platform level, at least one concourse level, a precast single piece bow-shaped concrete section, a precast concrete hybrid section, plurality of rolling stock, plurality of specially shaped precast plariks for skywalk, plurality of left arm entry structure, right arm entry structure, steel composite staircases, escalators and elevators.

[00011] According to an embodiment, the precast single piece bow-shaped section at the platform level further comprising of at least two side walls at both ends, a top horizontal slab as platform at right side, a top horizontal slab as platform at left side, a roof support from concourse level, a bottom horizontal slab path for the rolling stock, which further comprising of plurality of cable tray, a rail plinth, and a cable trough.

Further, a span of the platform level includes the precast single piece bow-shaped concrete sections and the bow-shaped section integrates both the station viaduct and platform passengers waiting portion. In the concourse level, a span includes the precast hybrid-section.

[00012] According to an embodiment, the precast single piece bow shaped section further comprises an extended platform at both right side and left side and forms a type- 1 station. In another embodiment, the precast single piece bow shaped section further comprises a roof support from platform level and forms type-2 station. Ih type -2 station, the extended platform is not available in the precast single piece bow shaped concrete_section.Jn type-1 precast-single piece bow shaped

above a station pier on the pier cap. The precast hybrid-section at the statibn concourse level can be configured to provide space for paid, unpaid areas, operational and functional spaces along with an AFC gate at right side and left side in the concourse level. Further the precast concrete hybrid-section can also be configured to provide path for bus transportation in the concourse level.

[00013] According to an embodiment, the precast single piece bow shaped concrete section along with the roof support from platform level of type -2 is placed above the station pier with a pier cap. Further the precast single piece bow shaped section along with the roof support from platform level is also placed above the station pier with a pier head and forms type-3 station wherein the rail level is reduced by this kind of arrangement. In the type-3 station, an auxiliary support structure is provided for bus transportation facility. The span of the concourse level also includes the single piece bow-shaped sections. That is the concourse level may also have the precast single piece bow-shaped sections to enable the operation of the roller stock in concourse level.

[00014] These and other aspects of the embodiments herein will be better appreciated and understood when onsidered ih conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.

BRIEF DESCRIPTION OF DRAWINGS

[00015] The detailed description is set forth with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The use of the same reference numbers in different figures indicates similar or identical items.

[00016] Fig. la existing system of station spans at concourse level, platform level and station viaduct made of I-girders, according to a prior art herein;

[00017] Fig. lb existing system of station spans at concourse level, platform level and station viaduct made of I-girders with segmental U-shaped section, according to a prior art herein;

[00018] Fig. lc existing system of station spans at concourse level, platform level and station viaduct made of I-girders with segmental box girders, according to a prior art herein;

[00019] Fig. 1 cross-sectional view of type-1 station arrangement, according to an embodiment herein;

[00020] Fig. 2 cross-sectional view of type-2 station arrangement, according to an embodiment herein;

[00021] Fig. 3.1 cross-sectional view of type-3 station arrangement, according to an embodiment herein;

[00022] Fig. 3.2 cross-sectional view of type- 3 station showing bus transportation within station concourse level along with auxiliary support structure, according to an embodiment herein;

[00023] Fig. 3.3 cross-sectional view of type-3 station showing bus transportation within station concourse level, according to an embodiment herein;

[00024] Fig. 4.1 individual crbss-sectio al views of precast bow-shaped segments la for station platform level, according to an embodiment herein;

[00025] Fig. 4.2 individual cross-sectional views of precast bow-shaped segments lb for station platform level, according to an embodiment herein;

[00026] Fig. 5.1 individual cross-sectional view of precast hybrid segments 2 for

, concourse level with functional area, according to an embodiment herein; [00027] Fig. 5.2 individual cross-sectional view of precast hybrid segments 2 for concourse level with bus path, according to an embodiment herein;

[00028] Fig. 6.1 illustrates the typical cut section of invented precast planks of station skywalks, according to an embodiment herein;

[00029] Fig. 6.2 illustrates the typical perspective view of invented precast plahks of station skywalks, according to an embodiment herein;

[00030] Fig. 7.1 three-dimensional view of transit rail elevated station shaped by invented precast segments depicts the complete functional requirements with roof, according to an embodiment herein;

[00031] Fig. 7.2 three-dimensional view of transit rail elevated station shaped by invented precast segments depicts the complete functional requirements without roof, according to an embodiment herein;

[00032] Fig. 8 longitudinal elevation depicts about methodology execution at site by using incremental launching girder, according to an embodiment herein;

[00033] Fig. 9.1 perspective view of various stages during the placement of invented segments by launching girders and sectional view of skywalk segmental planks launcher and its stage wise execution as site, according to aft embodiment herein;

[00034] Fig. 9.2 side view of various stages during the placement of invented segments by launching girders and sectional view of skywalk segmental planks launcher and its stage wise execution as site, according to an embodiment herein;

[00035] Fig. 10 sectional view of interchange between transit rail stations in case elevated corridors at same level, according to an embodiment herein;

[00036] Fig. 11 sectional view of interchange between transit rail stations incase elevated corridors at different level, according to an embodiment herein;

[00037] Fig. 12 sectional view of interchange different rail levels but same in alignment up and down track along interchange station length, according to an efnbodiment herein; [00038] Fig. 13 sectional view of type-3 station box where the rail level at lower levels, according to an embodiment herein;

[00039] Fig. 14 perspective view of station entry structure arranged with invented precast planks with access functions like staircase, lift, escalators, emergency staircase and emergency ramp, according to an embodiment herein;

[00040] Fig. 15 sectional view of station entry structure arranged with invented precast planks, according to an embodiment herein;

[00041] Fig. 16.1 plan view shows the functional requirement space zones of Street level, according to an embodiment herein;

[00042] Fig. 16.2 plan view shows the functional requirement space zones of concourse level of transit rail station, according to an embodiment herein;

[00043] Fig. 17.1 plan view shows of platform level of transit rail station, according to an embodiment herein;

[00044] Fig. 17.2 plan view shows of roof level of transit rail station, according to an embodiment herein.

REFERENCE NUMERALS IN THESE DRAWINGS la Bow-shaped section. lb Bow-shaped section

2 Hybrid section 3a Platform left side

3b Platform right side 4 Roller stock

4a Bus 5 Cable tray

6 Cable trough 7 Rail plinth

8 MEP Shaft 8a AFC gates left side

8b AFC gated Right side 8c Bus stop

9a Roof support from concourse 9b Roof support from Platform

10 Station Pier 1 1 Station box

12,13 Left arm entry structure 14,15 Right arm entry structure

16 Sky walks 16a Auxiliary structures

17 launching Girder 18 specially designed hangers

19 wagon 20 crane or self propelled elevated stage precast concrete pluggable

21,22,23,24 planks 3c Extended portion of platform DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[00045] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments and detailed in-the- following-dese

processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

[00046] As mentioned above, there is a need for a precast single piece segments for double level elevated transit rail stations to avoid site concreting^', excess construction time and effectively usage of launching girders or gantry girders construction methodology at site. The embodiments herein achieve this by providing a precast single piece bow shaped concrete section and a precast concrete hybrid section to construct a double level elevated transit rail stations. Referring now to the drawings, and more particularly to FIGS, la through 17.2, where similar reference characters denote corresponding features consistently throughout the figures, there are shown preferred embodiments.

[00047] According to prior art illustrated in Fig. la, existing system of rail station spans at concourse level, platform level and station viaduct made of I-girders. Further, incremental launching is not applicable and that requires Staging at site and in-situ concerting for the decks. According to prior art illustrated in Fig. lb, existing system of station spans at concourse level, platform level and station viaduct made of I-girders. Further, incremental launching is not applicable excluding station viaduct made of segmental U-shaped section, which requires staging at site and in-situ concerting for the deck. According to prior art illustrated in Fig.lc, existing system of station spans at concourse level, platform level and station viaduct made of I-girders. Further, incremental launching is not applicable excluding station viaduct made of segmental box girders, which requires staging at site and in-situ concerting for the decks. [00048] According to an embodiment, the transit rail station of double level comprising of at least one platform level, at least one concourse level, a precast single piece bow- shaped concrete section, a precast concrete hybrid section and plurality of roller stock - (4), plurality of specially shaped precast planks for skywalk (16), plurality of left arm entry structure (12,13), right arm entry structure (14, 15), steel composite staircases, escalators and elevators.

[00049] According to an embodiment, the invention relates to the configuration of transit rail station with self supported structures of (la, lb, 2) Over the bearings, the section (la, lb) defines with the path for rolling stock, accommodates space for passengers (3a,3b) and the elements (5,6,7) can be directly accommodated for the travelling Of (4) .The section (2) provides the space for paid, unpaid areas, operational and functional spaces for transit station, as well as section (2) providing path for bus (4a) movement as part of intermodal connectivity within the station area , the openings for mechanical ,electrical and plumping shafts (8), machineries like Af C gates (8a,8b) can be accommodated over hybrid section (2)and support for station roof (9a,9b)can be taken over the section(2,lb).Both the section (la,lb,2) supports over the (10) which makes the complete station box (1 1) (fig 1,2,3) shows three types of station box's arrangement Type- 1 ,Type-2,Type-3.

[00050] According to an embodiment, Type 1 where the section- la arranged so the support for roof leg taken from the section 2 and pier cap of station upper level/ platform level (10),Type 2 where the section- lb arranged so supports for roof leg (9a,9b) taken from both section 2 , section- lb .whereas in Type 3 station box arrangements as same like type-2 without pier cap both the superstructure have supported On pier head where the rail level can be reduced by this kind of arrangement.

[00051] According to an embodiment, station skywalk (16), left/right arm entry structures(12,13 & 14,15)made by precast concrete pluggable planks (21,22,23,24) as shown in (fig 7) to the paid and unpaid areas whereas stations allowed for intermodal connectivity like bus transport provided with auxiliary structures (16a)as shown in fig 3.2 and upper platform portion (3a,3b),using this three sections (la,lb,2) as segments where incremental launching can be adopted by launching Girder (17).

[00052] According to an embodiment, this invention aims to produce the elevated stations having the upper level platform and lower level concourse by assembling segments at the site disables the provision for larger concreting, staging for the station spans which affects the major traffic flow of urban cities during the elevated corridors construction and makes the construction pfogfess to be faster most Of the elements can be constructed as parallel activities. Transit rail stations consists the portions like concourse, platform and station viaduct since the inventions Of section (la, lb,2) serves the regular transit rail station purpose. The construction Of this transit stations supports over the pier and pier cap (10) which lies along median of road and the elevated corridors aligns as same with stations.

[00053] According to an embodiment, incremental launching methodology of construction can be adopted for the station concourse level and platform level by the invention of those three sections (la,lb,2) have an advantage of faster the construction of whole transit elevated corridors viaduct as well as station. The section (lb) can be formed by a precast single piece bow shaped concrete section (la) without ah extended platform section (3c) and the bow shaped section (la) is attached to a roof support from platform level ( ). Accessibility zones through station skywalk (16), LHS and kHS sides are (12,13 & 14,15) made by precast concrete pluggable planks (21,22,23,24) as shown in (fig 7) to the paid and unpaid areas and upper platform portion (3a,3b) as showii in fig 14 and 15 comprises of steel composite staircases, escalators, elevators.

[00054] According to an embodiment, the accessibility to the stations box can be done by providing zones (12,13,14, 15) comprises special span steel composite staircases, Sky walks (16), escalators and elevators to attain accessibility from the street level to concourse unpaid area and from the concourse unpaid area to platform portion. Section la and lb integrates both the station viaduct portion for the movement of rolling stock, where the other elements (5, 6, and 7) can be directly. [00055] According to an embodiment, embedded, platform portion at the both (3a, 3b) where the passengers waits for the rolling stock. Section 2 comprises of the kind of portion as stiffener portion (2a), mid opening portion (2b) and the mid slab portion (2c) this, three- portions have an extensive combinations-which ado^^{^}

station with the combination (2c:2a:2c) : (2b:2a:2b): (2b:2a:2c) to fulfill the requirement of floor cutouts for accommodation MEP shafts from the road median (2c:2a:2b):(2b:2a:2c) , Station steel structural roof (9a) fixed over the section 2 (stiffener portion 2a), at regular interval and over the support of pier cap which holds the section (la or lb) .

[00056] According to an embodiment, as part of intermodal connectivity type-3 station also providing the path for bus (4a) transportation over hybrid section (2) pavement and bus bays are introduced at concourse level as shown in fig 3.2.Both this section can be made as pre-casted segments of 3m span where it can be assembled by using launching girder (17) span to span method sequence of launching by lifting the section (2) by specially designed hangers (18) as first level of sequence then pre-stressing can be done after the finishing span 1 of lower level segments section (2), using wagon on the path of temporary rail at lower level section la or lb will be lifted from the wagon (19) in before this second level of sequence section (la or lb) gets placed on wagon either by crane or self propelled elevated stage (20).

[00057] According to an embodiment, both the bow shaped sections la and lb differs due the support for station roof where type-1 station box arranged by section- la in this case support for roof at platform level pier caps but in type -2 station box station viaduct spans composed of section- lb holds the supports (9b) at regular intervals in match with supports (9a) from hybrid section (2) for station roofs.

[00058] According to an embodiment, the span of transit rail station platform level made of precast bow-shaped concrete section (la) integrates both the station viaduct and platform passengers waiting portion. The bow-shaped section composed of two no's of side walls at both ends, top side horizontal slab as platform (3a,3b), bottom horizontal slab path for the rolling stock which forms the bow-section as called type-1 station box as shown in Fig. 1.

[00059] According to an embodiment, the span of transit rail station platform level made of precast bow-shaped concrete section (lb) integrates both the station viaduct and platform passengers waiting portion. The bow-shaped section composed of two no's of side walls at both ends, top side horizontal slab as platform (3a,3b), bottom horizontal slab path for the rolling stock which forms the bow-section as called type 2 station box as shown in Fig. 2.

[00060] According to an embodiment, the type 3 station box have the arrangements as same like type-2 without pier cap both the superstructure have supported on pier head where the rail level can be reduced by this kind of arrangement as shown in fig 3.1 As part of intermodal connectivity type-3 station also providing the path for bus (4a) transportation over hybrid section (2) pavement and bus bays are introduced at concourse level as shown in fig 3.2.

[00061] According to an embodiment, the span of transit rail station concourse level made up of precast hybrid-section (2).Provides the space for operation and functional areas for the transit rail station composed by Twin multi-celled box girders provided with stiffener T-beam, inverted L-Beam, rectangular Beam based on combination of portion 2a, 2b, and 2c.Both the spans of platform level and concourse level made of pre-stressed concrete.

[00062] In an embodiment, rail plinth (5), cable tray (6), cable duct (7) can be directly fixed on to the bow shaped -section (la, lb). Machineries, like AFC gates (8a, 8b) can be accommodated over hybrid section (2), partition walls for internal station rooms also provided over the section (2) and the cutouts for the MEP shafts accommodated by the combination of portions (2c:2a:2b):(2b:2a:2c) from the median of the road.

[00063] According to an embodiment, the support for roof (9a) is taken from the hybrid-section (2) at regular intervals and over the platform level station piers. At the position of roof leg the stiffener portion (2a) has been provided as shown in type-1 station box. The support for roof (9a, 9b) is taken from the hybrid-section (2), bow- shaped section (lb) at regular intervals. At the position of roof leg the stiffeher portion (2a) has been provided as shown in type-2 station box. Both the section (la, lb) for platform and section (2) for the concourse level assembled at the site by launching - girders (17) hangers ( 18) and wagon (19), self propelled elevated platformr

[00064] According to an embodiment, the section (la, lb) directly supported first pier and second pier, and run between the first and second piers gets rested over the pier caps at second level (platform level).and the section (2) directly supported first pier and second pier, and run between the first and second piers gets rested over the pier caps at first level (concourse level). The spans of structures station box portion made of single piece of precast bow-sections (la, lb) and hybrid section (2). Station skywalk (16), left/right arm entry structures (12,13 & 14,15) made by precast concrete pluggable planks (21,22,23,24) as shown in (fig 7) to the paid and unpaid areas whereas stations allowed for intermodal connectivity like bus transport provided with auxiliary structures (16a)as shown in fig 3.2,14 and 15 comprises of steel composite staircases, escalators, elevators.

[00065] According to an embodiment, both the third rail system as embedment in section (la or lb) and over head electric line system hanging support from station roof (9) supported over the section (2), station piers (10) provisions can be adopted power supply to the rolling stock.

[00066] According to an embodiment, the interchange between the transit rail stations by using invented precast sections is described in Fig 10 to 13. The fig: 10 define the interchange between transit stations in case the corridor at same level, fig: 11 define the interchange between different rail levels and fig 12 defines interchange different rail levels but same in alignment up and down track along interchange station length. The fig : 13 depicts the span arrangement of section- lb which holds support for station roof (9b) gets support over the pier 10, as called type-3 statioh box where the rail level at lower levels. This segmental construction (station box) forms both individual transit rail stations and interchange transit rail stations for rapid construction of elevated transit railway networks. [00067] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described ifi terms of preferred embodiments, those skilled in the aft will recognize that the embodiments herein can be practiced with modification within the spirit and scope Of the embodiments as described herein.

Claims

What is Claimed is:

1. A transit rail station of double level comprising of,

at least one platform level, at least one concourse level, a precast single piece bow-shaped concrete jecjion_(la)_.__.a precast concrete JiybricL section— plurality of rolling stock (4), plurality of specially shaped precast planks for skywalk (16), plurality of left arm entry structure (12, 13), right arm entry structure (14, 15), steel composite staircases, escalators and elevators;

wherein the precast single piece bow-shaped concrete section further comprising of at least two side walls at both ends, a top horizontal slab as platform at right side (3a), a top horizontal slab as platform at left side (3b), a roof support from concourse level (9a), a bottom horizontal slab path for the rolling stock, which further comprising of plurality Of cable tray (5), a rail plinth (7), and a cable trough (6);

wherein a span of the platform level includes the precast single piece bow- shaped concrete sections (la); further the bow-shaped section integrates both the station viaduct and platform passengers waiting portion; and

wherein a span of the concourse level includes the precast concrete hybrid- section (2).

2. The transit rail station of claim 1 , said precast single piece bow shaped concrete section (la) further comprises an extended platform at both right side and left side (3c).

3. The transit rail station of claim 2, said precast single piece bow shaped concrete section (la) further comprises a roof support from platform level (9b).

4. The transit rail station of claim 1, said precast single piece bow shaped concrete section (la) is placed above a station pier (10) with a pier cap.

5. The transit rail station of claim 1, wherein said precast concrete hybrid-section (2) is configured to provide space for paid, unpaid areas, Operational and functional spaces along with an AFC gate at right side (8a) and left side (8b) in the concourse level.

6. The transit rail station Of claim 1, wherein said precast concrete hybrid-section (2) is also configured to provide path for bus (4a) transportation in the concourse level.

7. The transit rail station of claim 1, wherein said precast single piece bow shaped concrete section (la) along with the roof support from platform level (9b) is placed above the station pier (10) with a pier cap.

8. The transit rail station of claim 1, wherein said precast single piece bow shaped concrete section (la) along with the roof support from platform level (9b) is also placed above the station pier (10) with a pier head wherein the rail level is reduced by this kind of arrangement.

9. The transit rail station of claim 1, further comprising of an auxiliary support structure (16a) for providing bus transportation facility.

10. The transit rail station of claim 1, wherein said span of the concourse fevef also includes the precast single piece bow-shaped concrete sections (la),