KR20150014796A - Compressive force introduced built block emergency shelter stairs for bridge - Google Patents

Compressive force introduced built block emergency shelter stairs for bridge Download PDF

Info

Publication number
KR20150014796A
KR20150014796A KR1020130090476A KR20130090476A KR20150014796A KR 20150014796 A KR20150014796 A KR 20150014796A KR 1020130090476 A KR1020130090476 A KR 1020130090476A KR 20130090476 A KR20130090476 A KR 20130090476A KR 20150014796 A KR20150014796 A KR 20150014796A
Authority
KR
South Korea
Prior art keywords
bridge
emergency evacuation
emergency
blocks
block
Prior art date
Application number
KR1020130090476A
Other languages
Korean (ko)
Inventor
최인정
Original Assignee
최인정
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 최인정 filed Critical 최인정
Priority to KR1020130090476A priority Critical patent/KR20150014796A/en
Publication of KR20150014796A publication Critical patent/KR20150014796A/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The present invention can be easily assembled in the field after the emergency evacuation step is built in a factory in a block form and can be easily assembled in the field so that it can resist external forces such as wind load, sudden wind gust and earthquake load and buckling in a small- An assembly block type emergency evacuation step for a bridge to which a compressive force is introduced, and a construction method thereof.
According to a preferred embodiment of the assembly block type emergency evacuation step for the bridge to which the compressive force of the present invention is applied, in the emergency evacuation step to be constructed on the bridge side in a prefabricated manner, a plurality of A foundation pile; A concrete expansion base constructed on the head of a foundation pile; A plurality of blocks for the emergency escape stairs which are sequentially stacked and assembled upward on the upper face of the concrete expansion base and are installed to the slab position of the bridge; One or more detachable stairs connected and assembled to two blocks of two emergency shelter steps stacked vertically; A rock bolt or anchor body constructed on a concrete expansion base; A PC strand connected to the anchor body and having a sheath tube embedded in the column member of the block for the emergency evacuation step, and the other end being fixed at the uppermost end of the column member; And a fixing device for fixing the PC stranded wire to the upper end of the uppermost pillar member.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an emergency building,

The present invention relates to an assembled block type emergency evacuation step for a bridge to which a compressive force is applied and a construction method thereof, and more particularly, to an emergency evacuation step for a bridge, which can be easily assembled in the field after being manufactured in a factory, The present invention relates to an assembled block type emergency evacuation step for a bridge to which a compressive force is applied to resist an external force such as a wind load, a sudden gust and an earthquake load and a buckling in a high installation environment, and a construction method thereof.

In recent years, as the development of transportation has accelerated, the bridges installed on railways, trains or roads are becoming larger, specialized, and intensified, and bridges with high height of 20m ~ 30m above the ground and 80m above the ground are increasing . If an accident such as a train, a train, or a car occurs in such a bridge, the driver or the user needs to quickly get out of the bridge. An emergency evacuation step is required so that the driver or user can evacuate quickly and safely to the lower ground of the bridge using the emergency evacuation stairs.

Emergency evacuation Stairway facilities should be raised as the height of the emergency escape according to the height of the bridge. Therefore, in order to secure the safety of the conduction due to the wind load or the sudden gust of wind influenced by the installation height, the foundation width of the emergency evacuation step It would be natural to grow.

In addition, it is very difficult to secure the quality and construction due to cutting and manufacturing directly after the material is brought into the site and there are many disadvantages such as air delay due to weather conditions, and it is uneconomical and uncomfortable for various reasons There were many.

As a background of the present invention, Korean Unexamined Patent Publication No. 10-2009-0061760 discloses an emergency stairway for a railway bridge. An inlet portion connected to the slab of the railway bridge; An outlet provided on the lower surface of the railway bridge; A plurality of switching parts provided between the inlet part and the outlet part; And a unit stepped portion provided between the inlet portion, the switching portion, the switching portion, the switching portion, the switching portion, and the outlet portion. Therefore, it has the advantage that it can be used as a facility to avoid trains during line maintenance work by making maximum use of the lower space of the bridge.

However, the background art does not disclose a means for preventing the conduction of the facility due to wind loads or gusts, and it is difficult to secure quality because it is not a standardized method of assembling, and air delay may occur depending on weather conditions.

Korea Patent Registration No. 10-0989111

Accordingly, the present invention minimizes the size of the emergency evacuation step so that the emergency evacuation staircase constructed in the factory can be transported to the site, and the emergency evacuation step The present invention provides a building block type emergency evacuation step for a bridge to which a compressive force is applied so that a facility can be easily installed only by fastening a block and a block with a bolt, and a construction method thereof.

Another object of the present invention is to provide a method of installing an anchor body (or a rock bolt) on a foundation foundation of an emergency evacuation stairway to introduce a compressive force into the emergency evacuation staircase by tensioning and fixing the PC strand at the top of the emergency evacuation stairway, To prevent the external force and buckling such as wind load, sudden gust and earthquake load, thereby securing the stability against the conduction.

According to a preferred embodiment of the assembly block type emergency evacuation step for a bridge to which the compressive force of the present invention is applied,

In an emergency evacuation step that is prefabricated on the bridge side,

A plurality of foundation piles installed in the foundation so as to support the emergency evacuation step;

A concrete expansion base constructed on the head of a foundation pile;

A plurality of blocks for the emergency escape stairs which are sequentially stacked and assembled upward on the upper face of the concrete expansion base and are installed to the slab position of the bridge;

One or more detachable stairs connected and assembled to two blocks of two emergency shelter steps stacked vertically;

A rock bolt or anchor body constructed on a concrete expansion base;

A PC strand connected to the anchor body and having a sheath tube embedded in the column member of the block for the emergency evacuation step, and the other end being fixed at the uppermost end of the column member;

And a fixing device for fixing the PC stranded wire to the upper end of the uppermost pillar member.

Also, in order to resist buckling, concrete is filled around the sheath tube in the column member of the block for the emergency evacuation step.

In addition, the emergency-stairway block is located between two neighboring piers, stacked in a Y-shape, and connected via a bidirectional entryway at the middle height, allowing simultaneous evacuation from both sides of the bridge do.

Further, the blocks for the emergency evacuation step include all four column members located at each corner of the rectangular area; Upper and lower horizontal beams arranged in the horizontal direction and the vertical direction on the four pillar members and connected to the upper and lower ends; Upper and lower beams each connected to a pair of upper horizontal beams and lower horizontal beams facing each other; An integral stair which is positioned offset from the detachable stair and connected between the upper and lower beams; A top landing connected to the top beam and the top horizontal beam; A bottom landing connected to the bottom beam and the bottom horizontal beam; Upper and lower horizontal beam connecting bracing arranged in an inverted V-shape in a horizontal beam at the upper horizontal beam and assembled with a bolt; And a column joint plate joined to upper and lower ends of each of the four column members is provided.

In addition, the integrated staircase, the upper landing and the lower landing are each provided with additional railing.

Further, a separating step is further provided between the block for the lowermost emergency evacuation step and the foundation ground.

Further, the two-way entry passage is characterized in that both ends are respectively supported in the lower emergency escape stair block through the entry passage support.

On the other hand, according to the construction method of the assembly block type emergency evacuation step for a bridge to which the compressive force of the present invention is applied,

Introducing a plurality of foundation piles into a base of the bridge;

Placing an anchor body or a rock bolt in a mold in which a concrete expansion base is installed, exposing the remaining portion of the PC strand connected to the anchor body to the outside of the mold, and then constructing a concrete expansion base on the head of the foundation pile;

Assembling and stacking a plurality of blocks for an emergency evacuation step to a slab position of the bridge sequentially upwards on the upper face of the concrete expansion base by bolt assembly;

Sequentially selecting two blocks for the emergency escape step that are vertically stacked adjacent to each other, assembling the separate type stairs to the upper and lower side beams;

And a PC strand connected to the anchor body or the rock bolt is inserted into the sheath tube embedded in each column member of the block for the emergency evacuation step so as to be taut at the uppermost end of the uppermost column member to introduce compressive force, .

The method further includes the step of filling and curing the concrete around the sheath pipe in each column member before introduction of the compressive force.

Further, a block-reinforced connecting bracing is connected between the blocks for the emergency evacuation step in a V-shape.

In addition, the emergency stairway block is positioned between two adjacent piers and stacked in a substantially Y-shape. By installing a bidirectional entryway at the middle height, a block for emergency stairs is constructed in Y-shape, So that simultaneous evacuation is possible.

According to the assembly block type emergency evacuation step and the construction method for a bridge to which the compressive force is applied according to the present invention, by introducing the compressive force to the emergency evacuation step by using the anchor body (or rock bolt) and the PC stranded wire, In the installation environment, it can resist external force and buckling such as wind load, sudden gust and earthquake load, and stability against conduction is ensured.

In addition, emergency evacuation stairs built in the factory can be transported to the site by minimizing the size and quality of the emergency evacuation staircase. It is economical with various advantages, from design to manufacture, transportation, and construction, such as the possibility of building a sheltered stairway facility.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
FIG. 1 is a constructional view of an assembly block type emergency evacuation stairway for a bridge to which a compressive force is applied according to the present invention. FIG.
Fig. 2 (a) is a front view showing a basic framework structure in an assembled block type emergency evacuation step for a bridge to which the compressive force of Fig. 1 is introduced; Fig.
FIG. 2B is a sectional view taken along line BB of FIG. 2A. FIG.
3 is a front view of a basic block applied to an assembled block type emergency evacuation step for a bridge to which the compressive force of the present invention is applied.
Figure 4 is a plan view of Figure 3;
5 is a sectional view taken along the line AA of Fig.
6A and 6B are views showing a construction sequence of an assembled block type emergency evacuation step for a bridge to which a compressive force is applied according to the present invention.
FIG. 7 is a constructional view of an assembled block type emergency evacuation stairway for a bridge to which a compressive force is applied according to another embodiment of the present invention; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

An emergency evacuation step according to the present invention is shown in Figures 1 and 2. FIG. 1 shows a construction state of an assembled block type emergency evacuation step for a bridge to which a compressive force according to the present invention is introduced, and FIG. 2 shows a basic structure of the assembled block type emergency evacuation step for a bridge to which the compressive force of FIG. Front view.

As shown in Figs. 1 and 2, a plurality of foundation piles 8 are installed on the foundation foundation 1 at one side of the bridge 5. Fig. The foundation pile 8 can be a steel pipe pile, a concrete pile, a PHC pile, a micro pile, and so on. The foundation pile 8 penetrates the foundation foundation 1 and exerts a supporting force to support the reinforced concrete base 10 and the emergency evacuation step afterwards.

A concrete expansion base 10 is constructed on the foundation pile 8. [ The concrete expansion base (10) disperses the load of the emergency evacuation step facilities and transfers them to the foundation pile (8). The concrete expansion base 10 can be synthesized on the head of the foundation pile 8 through a head reinforcement device. In this embodiment, the concrete expansion bases 10 are provided with anchor bolts 11 for fixing the pillars of the emergency evacuation step at four places on the upper surface with a predetermined thickness.

The emergency evacuation step has a structure in which a plurality of blocks 20a, 20b or 20c for emergency evacuation steps are stacked on a concrete expansion base 10 in a prefabricated manner, and two blocks 20a and 20b for emergency evacuation steps stacked upside down 20b, and 20c, respectively.

The emergency escape step blocks 20a, 20b or 20c are made of steel with the same structure and constant size. Therefore, the configuration of any one of the blocks for the emergency escape step is shown in Figs. 3 is a front view of a basic block applied to a building block-type emergency escape stairway for a bridge to which the present invention is applied, FIG. 4 is a plan view of FIG. 3, and FIG. 5 is a sectional view taken along line A-A of FIG. As shown in Figs. 3 to 5, all four pillar members 202 located at respective corners of a rectangular area surrounding the separable stairs 30 and four pillar members 202 arranged in the horizontal direction and the vertical direction, Upper and lower horizontal beams 204 and 206 connected to the lower ends of the upper and lower horizontal beams 206 and 206 and upper and lower horizontal beams 208 and 210 connected to the upper horizontal beams 204 and 204 and lower horizontal beams 206 and 206, An integral stepped portion 212 which is positioned to be separated from the separable stepped portion 30 and connected between the upper end beam 208 and the lower end beam 210 and is connected and supported to the upper end beam 208 and the upper end horizontal beam 204 A lower stepped staircase 215 connected to and supported by the lower side beam and the lower side horizontal beam, and an upper horizontal beam 204 and a lower horizontal beam 206, Upper and lower horizontal beam connecting bracing 214, four pillar members 202 And a column joint plate 216 joined to the upper and lower ends of the column joint plate 216.

The upper and lower horizontal beam connecting bracings 214 are connected to the bracing connecting plate 205b bonded to the center of the upper horizontal beam 204 and the bracing connecting plate 207 bonded to the end sides of the lower horizontal beam 206 .

In addition, the integrated stairs 212, the upper stairs 213, and the lower stairs 215 are further provided with handrails 212a, 213a, and 215a, respectively.

The emergency escape step is provided with an anchor body 40 (or a lock bolt), a PC strand 42 and a fixing device 44 for introducing compressive force to ensure safety against conduction.

The anchor body 40 is embedded in the concrete expansion base 10 and connected to the fixing device 44 whose one end is connected to the anchor body 40 and the other end is located at the uppermost end of the pillar member 202 do. At this time, the PC stranded wire 42 is inserted into the sheath tube 12 provided inside the pillar member 202.

The fixing device 44 is composed of a fixing plate 441, a wedge housing 442 fixed to the fixing plate 441, and a wedge 443 which is inserted and divided into the wedge housing 442 as shown in Fig. The wedge 443 is tapered with the wedge housing 442 to secure the PC strand 42.

Thus, the PC strand 42 is fixed to the concrete expansion base 10 via one end of the anchor body 40 and inserted into the column member 202, and the other end is fixed to the upper end of the column member 202 by the fixing device 44 The compressive force is introduced into the column member 202 of the block 20a, 20b or 20c for the emergency evacuation step.

As shown in FIGS. 2B and 4, a concrete 15 for resisting buckling around the sheath pipe 12 is charged and cured in the column member 202 of the emergency escape step block 20a, 20b or 20c . It is preferable that the filling and curing of the concrete 15 is performed before introduction of the tensile force of the PC stranded wire 42. That is, after the sheath pipe 12 is installed inside the column member 202, the concrete 15 for countering buckling is charged and cured before introducing the tensional force of the PC stranded wire 42.

On the other hand, a separable step 30 can be further provided between the bottom floor emergency escape stair block 20a and the foundation ground 1 as shown in Fig.

A construction method of the emergency escape stairway constructed as described above will be described with reference to Figs. 6A and 6B. FIGS. 6A and 6B show a construction flowchart of an assembled block type emergency evacuation step for a bridge to which a compressive force according to the present invention is applied.

First, as shown in Fig. 6A (a), a plurality of foundation piles 8 are introduced into one side of a bridge 5 on a foundation foundation.

Next, as shown in FIG. 6A (B), the concrete expansion base 10 is installed on the foundation pile 8. At this time, the anchor body 40 (or the rock bolt) is embedded in the formwork in which the concrete expansion base 10 is installed, the remaining portion of the PC strand 42 connected to the anchor body 40 is exposed to the outside of the formwork The concrete expansion base 10 is constructed. Therefore, the concrete expansion base 10 is synthesized on the head of the foundation pile 8. [

Next, a plurality of blocks (20a, 20b or 20c) for emergency evacuation from the top of the concrete expansion base (10) to the slab position of the bridge as shown in Figs. 6A and 6B ) Are sequentially bolted together and laminated.

That is, the first stage emergency evacuation step block 20a, the second stage emergency evacuation step block 20b, and the third stage emergency evacuation step block 20c are inserted into the column member 202 216 are bolted together and sequentially stacked. It goes without saying that more emergency evacuation steps may be added depending on the height of the bridge.

Here, after the installation of the blocks 20a, 20b or 20c for the emergency evacuation step at each end, a detachable step 30 is provided. The detachable stairs 30 are connected and assembled to the upper and lower side beams 208 and 210.

Also, after the block 20b for the two-stage emergency evacuation step is installed, a block-reinforced connecting bracing 219 is installed in a V-shape as shown in FIG. 6B, and the assembly is performed while reinforcing the blocks for the emergency evacuation stairs adjacent to the upper and lower sides .

The PC stranded wire 42 connected to the anchor body 40 in the concrete expansion base 10 is inserted into the sheath tube 12 drawn into each pillar member 202 to fix the uppermost pillar member 202 at the uppermost stage And fixes the device 40 taut. Therefore, the compressive force is applied to the entire emergency evacuation step block to ensure safety against conduction.

Here, the sheath pipe 12 may be formed by partially installing the lower portion of the concrete expansion base 10 in the state where the PC strand 42 is connected to the anchor body 40, or after the concrete expansion base 10 is constructed Can be pulled into the pillar member 202 and installed.

Meanwhile, in the present invention, it is possible to add a process of casting the concrete around the sheath pipe 12 inside each pillar member 202 before introducing the compressive force into the PC stranded wire 42. When the concrete 15 is filled in each of the pillar members 202 as shown in FIG. 2B, the moment of inertia of the pavement increases so that the pillar members 202 can resist buckling.

According to the assembled block type emergency evacuation step and the construction method for the bridge to which the compressive force according to the present invention is introduced, compressive force is introduced into the emergency evacuation step by using the anchor body 40 (or the lock bolt) and the PC stranded wire 42 This makes it possible to prevent the conduction due to external forces such as wind load, sudden gusts and earthquake loads and to ensure stability, and it is possible to manufacture and construct the standardized standard regardless of the installation height of the emergency escape step, thereby saving time and cost. In addition, when concrete is filled in the column member 202, the buckling resistance is increased and the safety of the construction is improved.

In addition, emergency evacuation stairs built in the factory can be transported to the site by minimizing the size and quality of the emergency evacuation staircase. It is economical with various advantages, from design to manufacture, transportation, and construction, such as the possibility of building a sheltered stairway facility.

7, the assembled block type emergency escape staircases may be stacked and arranged in a substantially Y-shape so as to be evacuated from both sides of the bridge 5, as shown in FIG. That is, after the emergency-relative stairway blocks 20a, 20b, or 20c are positioned between two neighboring piers, the bidirectional entry passage 60 is provided in the uppermost emergency-to-stairway block 20c, 60 and the stair blocks 20a, 20b in an emergency manner. The bidirectional entry passage 60 has a safety guardrail 62,

At this time, the number of stacked assemblies of the lower and upper emergency-side stair blocks on the basis of the bidirectional entry passage 60 is not particularly limited.

For bid reinforcement of the bidirectional entry passage 60, the bidirectional entry passage 60 can be installed such that both ends thereof can be supported by the entry passage support 70 to the lower emergency escape stair block 20a. The entry path support 70 can be bolted or welded.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

8: foundation pile
10: Basic concrete
12: Sheath tube
20a, 20b, 20c: Blocks for emergency evacuation steps
30: Separate staircase
40: Anchor body
42: PC Strand
44: Fixing device
204,206: Upper and lower horizontal beams
208, 210: Upper and Lower Rows
212: Integrated staircase
212a, 213a, 215a: railings
213: Top landing
214: Upper and lower horizontal beam connection bracing
215: bottom landing
219: Block reinforcement connection bracing

Claims (11)

In the emergency evacuation step of being assembled on the side of the bridge 5,
A plurality of foundation piles (8) penetrated into the foundation foundation to support the emergency evacuation step;
A concrete expansion base 10 installed on the head of the foundation pile 8;
A plurality of blocks (20a, 20b, or 20c) for emergency escape stairs, which are sequentially stacked and assembled upwardly on the upper face of the concrete expansion base (10) and constructed to the slab position of the bridge;
At least one detachable step (30) connected to two blocks (20a and 20b or 20b and 20c) of two emergency shelter steps stacked up and down;
A rock bolt or anchor body (40) constructed in a concrete expansion base (10);
The sheath tube 12 connected to the anchor body 40 at one end and embedded in the column member 202 of the emergency escape step block 20a, 20b or 20c is inserted, and the other end is connected to the upper end of the column member 202 A PC stiffening line 42 that is tensioned and fixed to the stiffener 42;
And a fixing device (44) for fixing the PC stranded wire (42) to the upper end of the uppermost pillar member (202). The method according to claim 1,
Characterized in that the concrete is filled around the sheath pipe (12) in the column member (202) of the emergency escape step block (20a, 20b or 20c) to resist buckling. Emergency evacuation stairs. The method according to claim 1,
The emergency stair blocks 20a, 20b, or 20c are positioned between two adjacent piers, stacked in a substantially Y-shape, and connected via a bidirectional entry passage 60 installed at an intermediate height, Wherein the reinforced concrete stepped structure is constructed so as to be capable of being evacuated. The method according to claim 1,
The blocks 20a, 20b, or 20c for the emergency evacuation step,
All four column members 202 located at each corner of the rectangular area;
Upper and lower horizontal beams 204 and 206 arranged in the horizontal and vertical directions on the four pillars 202 and connected to the upper and lower ends, respectively;
Upper and lower beams 208 and 210 respectively connected to a pair of upper horizontal beams 204 and 204 and lower horizontal beams 206 and 206 facing each other;
An integral step (212) located offset from the separable step (30) and connected between the upper side beam (208) and the lower side beam (210);
An upper landing 213 coupled to the upper beam and the upper horizontal beams;
A lower stage landing 215 coupled to the lower side beam and the lower horizontal beam;
Upper and lower horizontal beam connecting bracings 214 arranged in an inverted V shape on the upper horizontal beam 204 and the lower horizontal beam 206 and assembled with bolts;
And a column joint plate (216) joined to the upper and lower ends of each of the four column members (202). 5. The method of claim 4,
Characterized in that the integrated staircase (212), upper staircase (213) and lower staircase (215) are further provided with handrails (212a, 213a, 215a). The method according to claim 1 or 3,
Characterized in that a separating step (30) is additionally provided between the block (20a) for the lowermost emergency evacuation step and the foundation foundation, and an assembling block type emergency evacuation step for the bridge to which the compressing force is introduced. The method of claim 3,
Characterized in that the bidirectional entry path (60) is supported on the lower side emergency escape stair block (20a) through the entry passage support (70). Introducing a plurality of foundation piles (8) into the foundation foundation through one side of the bridge (5);
The anchor body 40 or the rock bolt is embedded in the concrete expansion base 10 and the remaining portion of the PC strand 42 connected to the anchor body 40 is exposed to the outside of the mold, 8) on the head of the concrete expansion base (10);
Assembling and stacking a plurality of blocks (20a, 20b, or 20c) for emergency evacuation steps to the slab position of the bridge sequentially upwards on the upper surface of the concrete expansion base (10) by bolt assembly;
Sequentially selecting the two blocks 20a and 20b or the blocks 20b and 20c for the emergency escape step which are vertically stacked adjacent to each other to connect the separable step 30 to the upper and lower side beams 208 and 210;
The PC stranded wire 42 connected to the anchor body 40 or the rock bolt is inserted into the sheath tube 12 embedded in each column member 202 of the emergency escape step block 20a, 20b or 20c, And a step of fixing the upper end of the column member in a taut manner to introduce compressive force. 9. The method of claim 8,
Further comprising the step of filling and curing the concrete around the sheath pipe (12) inside each column member (202) before introducing the compressive force. 9. The method of claim 8,
Characterized in that a block-reinforced connecting bracing (219) is connected in a V-shape between the blocks (20a, 20b or 20c) for emergency evacuation steps to thereby construct a building block-type emergency evacuation stairway for a bridge to which a compressive force is applied. 9. The method of claim 8,
A bidirectional entry passage 60 is provided at an intermediate height of the blocks 20a, 20b, or 20c in the form of an approximate Y-shape and positioned between two neighboring bridge piers. , 20b, or 20c) is installed in a Y-shape so that simultaneous evacuation is possible on both sides of the bridge. A method of constructing an assembly block type emergency evacuation stairway for a bridge to which a compressive force is applied.
KR1020130090476A 2013-07-30 2013-07-30 Compressive force introduced built block emergency shelter stairs for bridge KR20150014796A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130090476A KR20150014796A (en) 2013-07-30 2013-07-30 Compressive force introduced built block emergency shelter stairs for bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130090476A KR20150014796A (en) 2013-07-30 2013-07-30 Compressive force introduced built block emergency shelter stairs for bridge

Publications (1)

Publication Number Publication Date
KR20150014796A true KR20150014796A (en) 2015-02-09

Family

ID=52571590

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130090476A KR20150014796A (en) 2013-07-30 2013-07-30 Compressive force introduced built block emergency shelter stairs for bridge

Country Status (1)

Country Link
KR (1) KR20150014796A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102417022B1 (en) * 2021-10-01 2022-07-05 신준철 A bridge check stand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102417022B1 (en) * 2021-10-01 2022-07-05 신준철 A bridge check stand

Similar Documents

Publication Publication Date Title
US11598056B2 (en) Module for a structure
RU2525407C2 (en) Design of form to make stairs and stair platforms, method to manufacture such form and method of its usage
KR101227715B1 (en) Structure for SRC structured high rise building
US6543195B2 (en) Composite structural framing system
US20160251853A1 (en) Concrete deck for an integrated building system assembly platform
US20160076269A1 (en) Concrete deck with lateral force resisting system
JP2006502330A (en) Methods and apparatus for precast and framed block element structures
CN113026993B (en) Assembly type combined connecting beam window opening component, structure and manufacturing and construction method
CN110886227A (en) Main tower cast-in-place lower cross beam support system and construction method
KR20160039855A (en) Construction methods of precast concrete slab having its connection part being concealed by coupled ribs and, precast concrete slab used therefor
CN111622437A (en) Inclined-bottom stepping ladder beam structure for large-span stairs and use method
KR0184558B1 (en) Built-up type elevated highway
KR101295496B1 (en) Built-up emergency shelter stairs block for bridge
WO2007131115A1 (en) Composite structural framing system and method of erection
KR20150014796A (en) Compressive force introduced built block emergency shelter stairs for bridge
KR101008555B1 (en) Hybrid girder for underpass and underpass using the same
KR101878762B1 (en) Coupling structure of double type for girder and column capable of reducing girder height
CN114562023A (en) Assembly type frame connecting node, assembly type frame and assembly method
KR102296982B1 (en) Transfer Structure Construction Method Using U-shaped Steel Girder
CN110565956A (en) Assembled steel structure system and construction method thereof
RU2233953C2 (en) Method for erecting building frame without girders by means of floor lifting
CN213204751U (en) Large-span plate-type scissor stair structure with step hidden beams
JP6192286B2 (en) Evacuation building
CN214245324U (en) Rescue evacuation facility on assembled railway bridge
CN113846789B (en) Assembled concrete bidirectional ribbed floor structure and construction method thereof

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right