CN112681792A - Corridor reconstruction method for realizing flat-floor entrance by adding elevator to crossed stairway - Google Patents
Corridor reconstruction method for realizing flat-floor entrance by adding elevator to crossed stairway Download PDFInfo
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Abstract
The invention provides a corridor reconstruction structure method of a cross staircase, which is characterized in that the cross staircase is reconstructed, a staircase side is additionally provided with a dismantling bench and a half-width middle platform, and platforms entering a house are horizontally connected by a corridor and are consistent with the height of the bottom of an elevator door arranged on the corridor side of the elevator, so that the elevator can pass in and out of the house horizontally. The stairs and the half-width middle platform on the other side of the corridor are reserved and reinforced to ensure the structural safety, and the stairs and the half-width middle platform are connected with the upper layer and the lower layer to be used as emergency evacuation channels. This scheme can realize that crossing stair add the elevator and realize the flat bed and enter one's residence, simple structure, and it is convenient to reform transform, and the engineering time is short.
Description
Technical Field
The invention relates to the field of corridor structures, in particular to a corridor reconstruction method for realizing flat-floor entrance.
Background
The embodiment of the additional elevator has three modes of half-floor entrance, sub-level entrance and level entrance. The half-floor entrance means that the person who takes the elevator arrives at the floor and then walks to the home by half floor. The problem of height is solved through the ramp when the subflat layer enters the house, so that the original stair does not need to be dismantled, and construction can be completed only by additionally building. The flat floor is entered into the house and is meant that elevator berth platform and entry door platform are in same elevation, connect through the vestibule and really realize installing the target function of elevator additional, go out to the old man, and the transport article does not all constitute the obstacle.
In the existing buildings, one structure is a design that the crossing stairs are adopted to realize going upstairs and downstairs. The cross stairs are generally of two types, one is two straight stairs arranged side by side, the directions of the two straight stairs are opposite, the two straight stairs are separated by a wall and are not communicated with each other, the cross stairs are also called scissors stairs and generally have the function of evacuating staircases, and fig. 1 shows. The other is that the dual-running stairs with the middle platform are oppositely arranged and communicated, and generally do not have the function of evacuating the staircase, as shown in fig. 2. The former is scissors stair, and the latter is alternately stair.
The entrance way of the elevator is added on the cross stairs, and half-floor entrance is generally adopted. The elevator stair structure has the advantages that the stair structure is not required to be modified, and only the outer wall of the middle platform is provided with the door opening to serve as a connecting channel of the elevator and the stair. Because the middle platform of the stair and the landing have half-floor height, the user can enter the house only after needing the lower half-floor stair or the upper half-floor stair. When the old people take a wheelchair or carry large heavy objects, the old people are very inconvenient to pass, and the effect of additionally arranging the elevator is greatly discounted, which causes the regret. The specific structure is shown in fig. 3 and 4.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to realize the corridor reconstruction structure for realizing flat-floor entrance by adding the elevator on the crossed stair, has simple structure, meets the building construction requirement, and has simple construction and short construction time.
The technical scheme of the invention is as follows:
a cross type staircase adds the lift and realizes the corridor transformation method of the flat floor entering, including crossing the staircase or scissors staircase, the corridor transformation method of the said crossing staircase includes the following steps:
step one, temporarily supporting a middle platform on the side of a ladder section which does not need to be dismantled, wherein the purpose of temporary supporting is to ensure that the ladder section can pass through;
step two, when the flow construction is adopted, firstly, the half-width ladder sections and the half-width middle platforms on the sides of the elevators are dismounted in the sequence from top to bottom, and then the vestibules and the protective railings are mounted in the sequence from bottom to top; or when the sectional construction is adopted, the half-range ladder sections and the half-range middle platform on the sides of the elevator are disassembled layer by layer from top to bottom, and the horizontal corridor and the protective railing are installed;
step three, mounting the bench reinforcing member and the mounting structure connecting member in the sequence from top to bottom;
fourthly, removing the temporary supports from top to bottom;
fifthly, performing anticorrosion construction and quality detection;
step six, arranging an elevator platform channel on the side wall of the horizontal corridor, communicating the elevator with the horizontal corridor to form a horizontal channel of the elevator, the elevator platform, the horizontal corridor and the entrance platform, and realizing flat-layer entrance;
the scissor stair corridor reconstruction method comprises the following steps:
step one, dismantling half-width ladder sections in sequence;
step two, installing the horizontal vestibules in sequence;
step three, mounting the corridor guard rail;
and fourthly, arranging an elevator platform channel on the side wall of the horizontal corridor to communicate the elevator and the horizontal corridor to form a horizontal channel of the elevator, the elevator platform, the horizontal corridor and the entrance platform, so that flat entrance is realized.
Preferably, the load bearing index of the horizontal corridor is more than or equal to 1.5kn/m2 。
Preferably, the load bearing index of the bench reinforcing member or the structural connecting member is more than or equal to 3.5kn/m2 。
Preferably, the structure of corridor transformation of the step eight of the cross stairs comprises: the system comprises a middle platform, a landing platform, a ladder section reinforcing member, a connecting structural member and a horizontal corridor, wherein the middle platform is positioned between an upper landing platform and a lower landing platform, and the middle of the middle platform is connected through the ladder section; a bench reinforcing member is arranged below the bench, at least one connecting structural member is vertically arranged below the middle platform, the lower end of the connecting structural member is connected with a horizontal corridor, and two ends of the horizontal corridor are respectively connected with two home-entering platforms on the same floor;
the structure of the modified corridor in the step four of the scissors stair comprises a horizontal corridor, a landing platform and a stair section, wherein the horizontal corridor is arranged between the two landing platforms on the same floor, and the upper landing platform and the lower landing platform are connected through the stair section.
In the preferred scheme, a platform beam is arranged below the service platform.
Preferably, the horizontal corridor includes corridor shaped steel skeleton and covers the corridor impressed watermark steel sheet in corridor shaped steel skeleton top.
Preferably, detachable connection between bench reinforcement, connection structure spare, the horizontal vestibule.
Preferably, the detachable connection is a bolt connection.
A transformation method for realizing flat-floor entrance by adding an elevator to a crossed stair is characterized in that the crossed stair is transformed, the elevator side is added to remove a bench and a half-width middle platform, entrance platforms are horizontally connected through a corridor, the height of the entrance platforms is consistent with that of the elevator door bottom of the elevator arranged on the corridor side, and horizontal passage of the entrance and exit residences from the elevator is realized. The stairs and the half-width middle platform on the other side of the corridor are reserved and reinforced to ensure the structural safety, and the stairs and the half-width middle platform are connected with the upper layer and the lower layer to be used as emergency evacuation channels.
The crossing stair are additionally provided with the elevator, and the structural members for modifying the flat-layer entrance-to-home corridor comprise a horizontal corridor, a stair section reinforcing member, a structural connecting member and a protective railing.
(1) Horizontal corridor: the framework is formed by welding or bolt connection of profile steels, and the embossed steel plate is paved on the framework and firmly connected with the profile steel framework. And the embossed steel plate can be leveled by fine aggregate concrete or paved with ceramic tiles for decoration as required. According to the requirement of construction specifications, the index of load bearing of the horizontal corridor is 1.5kn/m2 。
(2) A bench reinforcement: a platform roof beam demolishs the back in the middle of the bench, makes the bench bear the load ability and satisfy the building code requirement through the reinforcement, specifically does: the load bearing index is 3.5kn/m2 . The bench reinforcing members are anchored with the upper and lower deck platform beams by anchor bolts and are fixedly connected with the implanted bolts at the middle deck beam.
(3) Structural connection spare: the structure connecting piece is connected with the bench reinforcing piece and the horizontal corridor through bolts, so that the structure is more stable.
The existing building adds the transformation construction of elevator corridor, has two big difficult points: firstly, whether the original structure is influenced or destroyed, and secondly, the length of the in-out time of the resident is influenced. For the former, temporary measures can be taken during construction according to the condition of the existing building structure, and the corridor structure is locally reinforced, so that the technical and measures can be taken. For the latter, need optimize from construction method and construction organization, install the construction with the elevator additional and cooperate the implementation, can reduce the time that influences the resident business turn over by a wide margin, prior art needs half a month to 1 month construction time, the required time of this technology site operation can be controlled within 3 days. The running water construction is adopted under the condition that the elevator cannot be used without being constructed, so that the passing time of residents is influenced (taking seven-storey houses as an example) to be different from 3 hours to 10 hours; by adopting the segmented construction under the condition that the elevator is constructed and can be used, the passing time of the resident (taking seven-storey houses as an example) can be controlled within 4 hours.
The construction method comprises the following steps:
(1) and adopting a flow construction method under the condition that the elevator cannot be used without being constructed.
The first day supports temporarily, does not influence the resident family and passes in and out basically, and the 2 nd day carries out bench demolishs, horizontal vestibule and railing installation. The half-range bench section and the half-range middle platform on the side of the elevator are firstly dismounted according to the sequence from top to bottom, and then the corridor and the protective railing are mounted in the sequence from bottom to top. And (5) mounting the reinforcing member and the connecting structural member on the 3 rd day. The specific program diagram is shown in fig. 19 below. Fig. 19 is a flow construction program diagram for modifying a flat floor entrance corridor (in the case that an elevator cannot be used after being constructed).
(2) And under the condition that the elevator is constructed and can be used, a sectional construction method is adopted.
The temporary support is carried out on the first day, the entrance and the exit of residents are basically not influenced, the ladder section dismantling and the horizontal corridor and the guardrail installation are carried out on the second day, the half ladder section and the half middle platform on the side of the elevator are dismantled in a layering mode from top to bottom, the horizontal corridor is installed, and the protective guardrail is installed; and (3) mounting the reinforcing members and the connecting structural members on the 3 rd day, wherein a specific program diagram is shown in the following figure 20, and figure 20 is a sectional construction program diagram (in the case that the elevator is constructed and can be used) for modifying the flat-storey entrance corridor.
According to the above construction procedure, the residence entrance and exit time and time period (seven stories of houses as an example) are affected as shown in fig. 21-23.
The method has the advantages that:
(1) before the corridor is transformed, the elevator is installed and can be used, and the connection platform from the elevator to the corridor and the door opening opened on the corridor wall are completed. After the corridor is installed, the corridor can form a passage for connecting an elevator, an elevator platform, the corridor and a service platform to realize access.
(2) By adopting an assembly type construction method, the corridor and the supporting piece are prefabricated in a factory and only need to be hoisted on site.
(3) The corridor is dismantled by adopting cutting construction, multiple working faces can be operated simultaneously, the efficiency is high, and the time is short.
(4) The method can also adopt the mode of temporarily opening a hole at the top of the corridor, transporting the dismantled bench, field materials, parts and components in a hoisting mode, and repairing after the construction is finished, thereby improving the construction efficiency.
(5) The work that does not influence the corridor structure to some can be implemented in advance, like drilling, pre-buried connecting piece etc..
The crossing type staircase is additionally provided with the elevator to realize the corridor reconstruction structure for flat-floor entrance, has simple structure, meets the relevant standard requirements of buildings, and has high construction efficiency and short construction time.
The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic view of a scissors stair of the prior art;
FIG. 2 is a schematic view of a cross-stair structure according to the prior art;
FIG. 3 is one of the schematic views of the entrance plane of the added elevator half-floor of the cross stairs in the prior art;
fig. 4 is a second schematic cross-sectional view of a cross-stairs added with elevator half-floor entrance in the prior art;
FIG. 5 is one of the schematic plan views of the present application for adding elevator flat floors to the user at the cross stairs;
fig. 6 is a second schematic sectional view of the present application of the cross-stairs with an additional elevator landing;
FIG. 7 is a schematic view of a connection of elevator flat floor entrance structures added to a cross staircase;
FIG. 8 is an exploded view of a horizontal floor landing structure of an elevator added to a cross staircase;
FIG. 9 is a schematic cross-sectional view of a scissor staircase with an added elevator landing entrance;
FIG. 10 is a schematic view of a modified front corridor of the cross stairs in embodiment 1;
FIG. 11 is a schematic view of a half-frame intermediate platform installation temporary support according to the embodiment of FIG. 1;
FIG. 12 is a schematic view showing the removal of the side steps and the half-width middle platform of the elevator in accordance with example 1;
FIG. 13 is a schematic view of an installation corridor according to embodiment 1;
FIG. 14 is a schematic view of the installation of the bench reinforcements and the component connectors of example 1;
FIG. 15 is a schematic view of the corridor after the temporary supports are removed according to embodiment 1;
FIG. 16 is a schematic view of a front corridor for scissor type staircase modification according to embodiment 2;
FIG. 17 is a schematic view of the addition of elevator side sections for the removal of a scissors staircase in embodiment 2;
FIG. 18 is a schematic view of the horizontal corridor installed on the stairway of the scissors in the embodiment 2;
FIG. 19 is a flow construction program diagram for modifying flat-storey residential passageway (in case of elevator not being used after being constructed)
Fig. 20 is a sectional construction program diagram for modifying a flat-storey entrance corridor (in the case that an elevator is constructed and can be used);
FIG. 21 is a diagram of the time and time periods affecting the residence time (seven stories of houses are taken as an example)
FIG. 22 is a second graph of time and time periods affecting the residence time (seven stories of houses are taken as an example)
Fig. 23 is a third graph (for example, a seven-story house) of the influence on the in-out time and time period of the resident.
Wherein, 1 is horizontal vestibule, 2 is platform of registering one's residence, 3 is bench reinforcement, 4 is the connecting structure spare, 5 is the bench, 6 is platform roof beam, 7 is existing corridor wall, 8 is the door of registering one's residence, 9 is the guard rail, 10 is connecting bolt, 11 is vestibule shaped steel skeleton, 12 is vestibule impressed watermark steel sheet, 13 is elevator door, 14 is temporary support, 15 is middle platform, 16 is the left half stair of scissors stair, 17 is the right half stair of scissors stair, 18 is second elevator door, 19 is roof access door, 20 is the connecting piece.
Detailed Description
Example 1
As shown in fig. 5-8, the corridor reforming structure for realizing flat-floor entrance by adding an elevator to a cross-type staircase comprises: the system comprises a middle platform 15, service platforms 2, a ladder section 5, a ladder section reinforcing member 3, a connecting member 4 and a horizontal corridor 1, wherein the middle platform 15 is positioned between the service platforms 2 on the upper layer and the lower layer, and the middle platform 15 is connected with the service platforms 2 on the upper layer and the lower layer through the ladder section 5; the bench 5 below is equipped with bench reinforcement 3, middle platform 15 below is equipped with at least one connection structure 4 perpendicularly, and connection structure 4 lower extreme is connected with horizontal vestibule 1, the both ends of horizontal vestibule 1 are connected with two platforms 2 of registering one's residence of the same layer respectively.
As shown in fig. 10-15, the specific method and steps for realizing the corridor reconstruction for flat-floor entrance by adding the elevator to the cross-type staircase comprises,
step one, temporarily supporting a middle platform on the side of a ladder section which does not need to be dismantled, wherein the temporary support is to ensure that the ladder section can pass through;
step two, when the flow construction is adopted, firstly, the half-width ladder sections and the half-width middle platforms on the sides of the elevators are dismounted in the sequence from top to bottom, and then the vestibules and the protective railings are mounted in the sequence from bottom to top; or when the sectional construction is adopted, the half-range ladder sections and the half-range middle platform on the sides of the elevator are disassembled layer by layer from top to bottom, and the horizontal corridor and the protective railing are installed;
step three, mounting the bench reinforcing member and the mounting structure connecting member in the sequence from top to bottom;
fourthly, removing the temporary supports from top to bottom;
fifthly, performing anticorrosion construction and quality detection;
step six, arranging an elevator platform channel on the side wall of the horizontal corridor, communicating the elevator with the horizontal corridor to form a horizontal channel of the elevator, the elevator platform, the horizontal corridor and the entrance platform, and realizing flat-layer entrance;
and seventhly, allowing the resident to pass through under normal conditions, and allowing the resident to take the elevator to reach the elevator platform of the floor and reach the entrance platform through the corridor to realize flat-floor entrance. When the elevator is stopped, people go up to the upper layer of the near-end platform through the steps, the near-end users directly enter the house, and the far-end users enter the house from the far end through the horizontal corridor. When emergency needs evacuation, the remote-end resident reaches the near-end entrance platform through the vestibule, and the same as the near-end resident, the remote-end resident moves to the next floor through the stairs.
Example 2
When the scissors stair type is adopted, if the stair does not have fire-fighting partition requirements, the condition of realizing flat-layer entrance is better, because the original stair sections are mutually independent, the removal of the stair section on one side does not influence the stress of the stair section on the other side, and therefore the modification is relatively simple, as shown in fig. 9.
The corridor reconstruction structure of the scissors stair comprises a horizontal corridor 1, a landing platform 2 and a stair section 5, wherein the horizontal corridor 1 is arranged between the two landing platforms 2 on the same floor, and the two landing platforms 2 on the upper layer and the lower layer are connected through the stair section 5.
The specific construction process is shown in FIGS. 16-18:
the scissor stair corridor reconstruction method comprises the following steps:
step one, dismantling half-width ladder sections in sequence;
step two, installing the horizontal vestibules in sequence;
step three, mounting the corridor guard rail;
and fourthly, arranging an elevator platform channel on the side wall of the horizontal corridor to communicate the elevator and the horizontal corridor to form a horizontal channel of the elevator, the elevator platform, the horizontal corridor and the entrance platform, so that flat entrance is realized.
And step five, enabling the resident to pass through under the normal condition, enabling the resident to take the elevator to reach the elevator platform of the floor, and enabling the resident to reach the entrance platform through the corridor, so that the flat floor entrance is realized. When the elevator is stopped, personnel go up to the upper layer of the near-end platform through the stairs, the near-end user directly enters the house, and the far-end user enters the house through the horizontal corridor to the far-end user entering platform. When emergency needs evacuation, the remote-end resident reaches the near-end entrance platform through the vestibule, and the same as the near-end resident, the remote-end resident moves to the next floor through the stairs.
The above description is for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the technical scope of the present invention, and the technical solution and the concept of the present invention are also intended to be covered by the scope of the claims of the present invention.
Claims (8)
1. A cross type staircase adds the lift and realizes the corridor transformation method of the flat floor entering the home, including the cross staircase or scissors staircase, its characteristic is, the corridor transformation method of the said cross staircase includes the following steps:
step one, temporarily supporting a middle platform on the side of a ladder section which does not need to be dismantled;
step two, when the flow construction is adopted, firstly, the half-width ladder sections and the half-width middle platforms on the sides of the elevators are dismounted in the sequence from top to bottom, and then the vestibules and the protective railings are mounted in the sequence from bottom to top; or when the sectional construction is adopted, the half-range ladder sections and the half-range middle platform on the sides of the elevator are disassembled layer by layer from top to bottom, and the horizontal corridor and the protective railing are installed;
step three, mounting the bench reinforcing member and the mounting structure connecting member in the sequence from top to bottom;
fourthly, removing the temporary supports from top to bottom;
fifthly, performing anticorrosion construction and quality detection;
step six, arranging an elevator platform channel on the side wall of the horizontal corridor, communicating the elevator with the horizontal corridor to form a horizontal channel of the elevator, the elevator platform, the horizontal corridor and the entrance platform, and realizing flat-layer entrance;
the scissor stair corridor reconstruction method comprises the following steps:
step one, dismantling half-width ladder sections in sequence;
step two, installing the horizontal vestibules in sequence;
step three, mounting the corridor guard rail;
and fourthly, arranging an elevator platform channel on the side wall of the horizontal corridor to communicate the elevator and the horizontal corridor to form a horizontal channel of the elevator, the elevator platform, the horizontal corridor and the entrance platform, so that flat entrance is realized.
2. The corridor reconstruction method for realizing flat-floor entrance by using the crossed stair-added elevator as claimed in claim 1, wherein the load bearing index of the horizontal corridor is more than or equal to 1.5kn/m2 。
3. The method for improving the stairway of the crossed stair-adding elevator to realize flat-floor entrance according to claim 1, wherein the load bearing index of the stair section reinforcing member or the structural connecting member is not less than 3.5kn/m2 。
4. The corridor reconstruction method for realizing flat-floor entrance by adding the elevator to the cross-type staircase according to claim 1, wherein the corridor reconstruction structure in the step eight of the cross-staircase comprises: the system comprises a middle platform (15), an entrance platform (2), a bench (5), bench reinforcements (3), connecting structural members (4) and a horizontal corridor (1), wherein the middle platform (15) is positioned between an upper layer of entrance platform and a lower layer of entrance platform (2), and the middles are connected through the bench (5); a bench reinforcing member (3) is arranged below the bench (5), at least one connecting structural member (4) is vertically arranged below the middle platform (15), the lower end of the connecting structural member (4) is connected with a horizontal corridor (1), and two ends of the horizontal corridor (1) are respectively connected with two home-entering platforms (2) on the same layer;
the structure of the scissors stair step four corridor after being reformed comprises a horizontal corridor (1), a landing platform (2) and a stair section (5), wherein the horizontal corridor (1) is arranged between the two landing platforms (2) on the same floor, and the two landing platforms (2) on the upper layer and the lower layer are connected through the stair section (5).
5. The corridor reconstruction method for realizing flat-floor entrance by adding the elevator to the crossed stairs according to the claim 1, which is characterized in that a platform beam (6) is arranged below the entrance platform (2).
6. The corridor reforming method for realizing flat-floor entrance by adding the elevator to the crossed stairs according to claim 1, which is characterized in that the horizontal corridor (1) comprises a corridor steel framework (11) and a corridor embossed steel plate (12) covering the corridor steel framework (11).
7. The corridor reconstruction method for realizing flat-floor entrance by adding the elevator to the crossed stair according to the claim 1, which is characterized in that the stair section reinforcing member (3), the connecting structural member (4) and the horizontal corridor (1) are detachably connected.
8. The method for improving the passageway of a crossed stair-added elevator to realize flat-floor entrance according to claim 1, wherein the detachable connection is a bolt connection.
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| CN202011500786.5A CN112681792A (en) | 2020-12-18 | 2020-12-18 | Corridor reconstruction method for realizing flat-floor entrance by adding elevator to crossed stairway |
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| CN202011500786.5A CN112681792A (en) | 2020-12-18 | 2020-12-18 | Corridor reconstruction method for realizing flat-floor entrance by adding elevator to crossed stairway |
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Application publication date: 20210420 |