CN116145991A - Newly-added skylight installation node for old factory building roof and construction process thereof - Google Patents

Newly-added skylight installation node for old factory building roof and construction process thereof Download PDF

Info

Publication number
CN116145991A
CN116145991A CN202310249635.4A CN202310249635A CN116145991A CN 116145991 A CN116145991 A CN 116145991A CN 202310249635 A CN202310249635 A CN 202310249635A CN 116145991 A CN116145991 A CN 116145991A
Authority
CN
China
Prior art keywords
plate
keel
keels
main
skylight
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202310249635.4A
Other languages
Chinese (zh)
Inventor
常广乐
詹新彬
曹延锋
张鑫
朱瑞瑞
潘峰
张艾迪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Urban Construction Group Co Ltd
Original Assignee
Beijing Urban Construction Group Co Ltd
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 Beijing Urban Construction Group Co Ltd filed Critical Beijing Urban Construction Group Co Ltd
Priority to CN202310249635.4A priority Critical patent/CN116145991A/en
Publication of CN116145991A publication Critical patent/CN116145991A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0266Enlarging
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03Sky-lights; Domes; Ventilating sky-lights
    • E04D13/0305Supports or connecting means for sky-lights of flat or domed shape
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03Sky-lights; Domes; Ventilating sky-lights
    • E04D13/0305Supports or connecting means for sky-lights of flat or domed shape
    • E04D13/031Supports or connecting means for sky-lights of flat or domed shape characterised by a frame for connection to an inclined roof
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0281Repairing or restoring roofing or roof covering

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

The invention relates to the technical field of old factory building reconstruction, and provides a newly-added skylight mounting node for a roof of an old factory building and a construction process thereof. Comprising the following steps: roof boarding, roof boarding has hole; the main keels are arranged on the plate ribs of the roof plate, are arranged along the periphery of the inner side of the hole, and are provided with a plurality of support keels along the width direction; the main joist is provided with the bottom flange board, and the bottom flange board is provided with two slotted holes, and the board rib encircles for the U type connecting plate and surrounds, and two slotted holes are passed respectively to the both ends of U type connecting plate, and the both ends portion of U type connecting plate and the upper surface butt weld of bottom flange board form the solder joint. The invention has the beneficial effects that: the U-shaped connecting piece is connected with the plate rib of the original roof in a mode similar to a hoop, and forms a supporting seat relation capable of sliding relatively with the plate rib, so that the U-shaped connecting piece plays a role in slowing down internal stress when the structural stress changes to generate sedimentation or the new and old structures generate displacement, and extrusion damage between the new and old structures (the plate rib) is prevented.

Description

Newly-added skylight installation node for old factory building roof and construction process thereof
Technical Field
The invention relates to the technical field of old factory building transformation, in particular to a newly-added skylight mounting node for a roof of an old factory building and a construction process thereof.
Background
With the development of socioeconomic performance, the progress of urbanization is continuously advancing, and the concept of urban update is continuously implemented, so that more and more old plants face update and reconstruction. However, the building form of the old factory building has an inherent defect compared with the prior art, wherein the most important thing is that the net height in the factory building is large, the total height of the building is small, if the building is not built, the building can only be used as a single-layer building, the space waste is large, and if the building is built, the use function is changed according to the standard.
Lighting and fire protection are extremely important acceptance criteria in terms of ensuring safety and comfort in the case of changing the function of use. Considering that the original factory building is only provided with door and window openings on the enclosure wall, lighting and fire protection are difficult to ensure if the original openings are only utilized, and the building layout is greatly limited. The actual situation and the current demand of old factory buildings are comprehensively considered, and the problem can be solved at the same time by the thought of adding the skylight on the roof of the original factory building, so that the method has good application and popularization values.
In the process of adding the skylight, the prestress influence exists on the original structural beam and the roof board, and the reinforcement planting or the post-embedded part construction cannot be directly carried out.
In view of this, the present invention has been proposed.
Disclosure of Invention
The invention aims to provide a newly-added skylight installation node for an old factory building roof and a construction process thereof, so as to solve the technical problems in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: an old factory building roofing newly-increased skylight installation node includes: a roof board, wherein an opening is formed in the roof board; the main keels are arranged on the plate ribs of the roof plate, are arranged along the periphery of the inner side of the hole, and are provided with a plurality of support keels along the width direction; the main joist is provided with the bottom flange plate, the bottom flange plate is provided with two slotted holes, the board rib encircles for the U type connecting plate and surrounds, just two are passed respectively to the both ends of U type connecting plate the slotted hole, the both ends of U type connecting plate with the upper surface butt weld of bottom flange plate forms the solder joint.
In an alternative embodiment, a plurality of support keels are arranged in parallel, and two ends of each support keel are welded with the lower flange plate of the main keel respectively.
In an alternative embodiment, the spacing between the plurality of parallel arranged support keels is 500mm.
In an alternative embodiment, the main joist is i-steel, and the main joist is further provided with an upper flange plate.
In an alternative embodiment, the inner shape of the U-shaped connecting plate is matched and fitted with the outer shape of the plate rib.
In an alternative embodiment, a vertical keel is welded above the upper flange plate of the main keel, and a longitudinal keel and a transverse keel are welded above the vertical keel.
In an alternative embodiment, a skylight is arranged above the longitudinal keels and the transverse keels.
In an alternative embodiment, the periphery of the skylight is sealed with the decorative layer by glue injection, and the periphery of the vertical keel is sealed by adopting a cement pressure plate.
The invention adopts another technical scheme that: the construction process of the newly added skylight installation node of the old factory building roof comprises the following steps of:
s1: disassembling the roof board to form the hole, and reserving the board rib positioned at the hole in the roof board;
s2: slotting on a lower flange plate of the main keel to form symmetrically arranged slotted holes, placing the main keel along the periphery of the hole, and placing the main keel on the plate rib;
s3: a plurality of support keels are welded in parallel between the main keels;
s4: after the U-shaped connecting plate surrounds the plate rib, two end parts of the U-shaped connecting plate penetrate through the slotted holes of the main keels and are welded with the upper surface of the lower flange plate in a flat mode;
s5: welding a vertical keel above an upper flange plate of the main keel, and installing a longitudinal keel and a transverse keel above the vertical keel;
s6: and a skylight is arranged above the longitudinal keels and the transverse keels.
In an alternative embodiment, in S5, the vertical keel is perpendicular to the ground, and the horizontal installation of the skylight is ensured by adjusting the length of the vertical keel.
The invention has the beneficial effects that:
(1) The U-shaped connecting piece in the node device is connected with the plate rib of the original roof in a mode similar to a hoop, and forms a supporting seat relation capable of sliding relatively with the plate rib, so that the effect of relieving internal stress is achieved when the structure is stressed to change to generate sedimentation or the new and old structure is displaced, and extrusion damage between the new and old structure (skylight system and the plate rib) is prevented.
(2) The node device is symmetrically provided with two slotted holes on the lower flange plate of the main joist, and two ends of the U-shaped connecting piece respectively penetrate through the slotted holes and are connected with the upper surface of the lower flange plate of the main joist in a flat welding mode. If the slotted hole is not formed, the welding mode is overhead welding, the welding difficulty is greatly reduced, the quality is guaranteed, the overhead operation is avoided, and the construction safety is also facilitated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a main roof rail and support rail installation in accordance with an embodiment of the present invention.
Fig. 2 is a schematic diagram of an installation position of a U-shaped connection board according to an embodiment of the invention.
Fig. 3 is a schematic view of a U-shaped connection board installation node according to an embodiment of the present invention.
Fig. 4 is a schematic view of a vertical keel and a horizontal keel installation provided in an embodiment of the invention.
Fig. 5 is a schematic view of the mounting spacing of the cross runners in accordance with an embodiment of the present invention.
Wherein, the reference numerals are as follows:
the concrete pressure plate comprises a 1-roof board, a 2-main keel, a 21-upper flange plate, a 22-lower flange plate, a 3-hole, a 4-support keel, a 5-U-shaped connecting plate, a 6-plate rib, a 7-slot hole, 8-welding spots, a 9-vertical keel, a 10-transverse keel, a 11-skylight, a 12-longitudinal keel and a 13-cement pressure plate.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are directions or positions based on the drawings, and are merely for convenience of description and are not to be construed as limiting the present technical solution. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
Example 1
Referring to fig. 1-5, an object of the present embodiment is to provide a new skylight installation node for an old factory building roof, including: the roof board 1, the roof board 1 is provided with an opening 3; the main keels 2 are arranged on the plate ribs 6 of the roof plate 1, the main keels 2 are arranged around the inner side of the hole 3, the main keels 2 are provided with a plurality of support keels 4 along the width direction, the support keels 4 are arranged in parallel, preferably, the distance between the support keels 4 arranged in parallel is 500mm, two ends of each support keel 4 are respectively welded with the lower flange plate 22 of the main keels 2, and in order to ensure that the stress of a skylight system meets the requirement, the support keels adopt 50 multiplied by 5.0 steel pipes.
Specifically, the main joist 2 is I-steel, and the main joist 2 is provided with a lower flange plate 22 and an upper flange plate 21, and the main joist 2 adopts HW125×125×6.5×9mm. The lower flange plate 22 is provided with two slotted holes 7, and the width of each slotted hole 7 is 54mm so as to meet the requirement that the U-shaped connecting plate 5 passes through the main joist lower flange plate. The plate rib 6 surrounds the U-shaped connecting plate 5, two ends of the U-shaped connecting plate 5 respectively penetrate through the two slotted holes 7, welding spots 8 are formed by flat welding of two ends of the U-shaped connecting plate 5 and the upper surface of the lower flange plate 22, and in the embodiment, the U-shaped connecting plate 5 is formed by bending a 5mm thick steel plate. It should be noted that the inner shape of the U-shaped connection plate 5 matches the outer shape of the plate rib 6. Through the structure, the U-shaped connecting plate 5 is connected with the old structure (plate rib) in a mode similar to a hoop (without adhesive steel glue), so that the mechanical conduction problem of the new structure and the old structure is solved, and even though the hoop is connected, the hidden danger of relative displacement caused by factors such as different materials of the new structure and the old structure, newly added load and the like is solved, so that the stability of the newly added skylight system is ensured.
Further, a vertical keel 9 is welded above the upper flange plate 21 of the main keel 2, and the vertical keel 9 is made of steel pipes with the spacing of 500mm and the diameter of 100×50×5.0 mm. The vertical keels 9 are installed to be perpendicular to the ground, and the horizontal installation of the skylight is ensured by adjusting the lengths of the vertical keels 9. And a longitudinal keel 12 and a transverse keel 10 are welded above the vertical keel 9. A skylight 11 is arranged above the longitudinal keels 12 and the transverse keels 10, wherein the transverse keels adopt steel pipes with the thickness of 50 multiplied by 5.0 mm. The longitudinal runners 12 and the transverse runners 10 serve as support members in direct contact with the skylight and must be installed while ensuring horizontal installation.
In addition, glue injection is carried out between the periphery of the skylight 11 and the decorative layer, and the periphery of the vertical keel 9 is sealed by adopting a cement pressure plate. The size of the skylight 11 is required to exceed the sizes of the transverse keels 10 and the longitudinal keels 12 so as to prevent rainwater from penetrating, and the skylight 11 and the surrounding decorative layers are sealed in a glue injection mode. The periphery of the vertical keel 9 is sealed by using double-layer double-sided cement pressure plates and rock wool with the thickness of 80mm, and the outside is waterproof and returns to the flashing height for decoration layer construction.
Example two
Referring to fig. 1-5, the purpose of this embodiment is to provide a construction process for newly adding a skylight installation node to an old factory building roof, which is characterized by comprising the following steps:
s1: dismantling the roof board 1 to form an opening 3, and reserving a board rib 6 of the roof board 1 positioned at the opening 3;
and for the part of the locally dismantled roof board 1, manually chiseling is used for chiseling along the large trapezoid rib and the small trapezoid rib of the prefabricated roof board. In the process of chiseling, only the reinforcing steel bars at the position of the opening 3 are cut off, and the trapezoidal plate rib reinforcing steel bars are strictly forbidden to be cut off. The reinforced steel bars and concrete near the position of the trapezoidal plate rib 6 are cut and polished by an angle grinder, so that the lower edge of the trapezoidal plate rib 6 meets the requirement of a decorative decoration base layer on the premise of not damaging the trapezoidal plate rib 6.
S2: slotting is carried out on a lower flange plate 22 of the main keel 2 to form symmetrically arranged slotted holes 7, the main keel 2 is arranged along the periphery of the hole 3, and the main keel 2 is arranged on the plate rib 6; the main joist 2 is placed on the rib 6 of the original roof 1 at this stage, and the temporary fixing is not required because of the height difference between the roof board 1 and the rib 6. Before the main joist 2 is installed, slotting is carried out on the lower flange plate 22 according to the position of the plate rib 6, and the slot 7 is 54mm wide so as to meet the requirement that the U-shaped connecting plate 5 passes through the lower flange plate 22 of the main joist.
S3: a plurality of support keels 4 are welded in parallel between the main keels 2, and two sides of the support keels 4 are welded with the lower flange plates 22 of the main keels 2;
s4: after the U-shaped connecting plate 5 surrounds the surrounding plate rib 6, two end parts of the U-shaped connecting plate 5 penetrate through the slotted holes 7 of the main joist 2 to be welded with the upper surface of the lower flange plate 22 in a flat mode, and the U-shaped connecting plate 5 is formed by bending a 5mm thick steel plate. If the slotted hole 7 is not formed, the welding mode is overhead welding, the welding difficulty of the overhead welding is greatly reduced, the quality is guaranteed, the overhead operation is avoided, and the construction safety is also facilitated. And, U type connecting piece 5 is connected with the rib 6 of former roofing 1 in the form of staple bolt to but form relative sliding's support relation with rib 6, play the effect of slowing down interior stress when structure atress change produces subsidence or new old structure produces the displacement, prevent the extrusion destruction between the new old structure.
S5: the vertical keels 9 are welded above the upper flange plates 21 of the main keels 2, the vertical keels 9 are installed to be perpendicular to the ground, and the horizontal installation of the skylight 11 is ensured by adjusting the lengths of the vertical keels 9. A longitudinal keel 12 and a transverse keel 10 are mounted above the vertical keel 9.
S6: the sunroof 11 is installed above the longitudinal runners 12 and the lateral runners 10, and the lateral runners 10 and the longitudinal runners 12 are used as support members in direct contact with the sunroof 11, and must be installed while ensuring a level.
S7: and installing the skylight system keel according to the steps, and then installing the skylight 11 and the surrounding closed system. The size of the skylight 11 is required to exceed the sizes of the transverse keels 10 and the longitudinal keels 12 so as to prevent rainwater from penetrating, and the skylight 11 and the surrounding decorative layers are sealed in a glue injection mode. The periphery of the vertical keel 9 is sealed by using double-layer double-sided cement pressure plates 13+80mm thick rock wool, and the outside is waterproof and returns to the flashing height for decoration layer construction. It is worth mentioning that skylight 11 size is bigger than opening 3 size, fossil fragments size to adopt the mode of injecting glue to seal in skylight 11 and cement pressure plate 13 decorative layer position, be favorable to skylight 11's water-proof effects.
Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (10)

1. An old factory building roofing newly-increased skylight installation node includes: the roof board (1), the roof board (1) is provided with an opening (3); the main keels (2) are arranged on the plate ribs (6) of the roof plate (1), the main keels (2) are arranged around the inner side of the hole (3), and a plurality of support keels (4) are arranged on the main keels (2) along the width direction;
the novel welding joint is characterized in that the main keel (2) is provided with a lower flange plate (22), the lower flange plate (22) is provided with two slotted holes (7), the plate ribs (6) are formed by surrounding a U-shaped connecting plate (5), two ends of the U-shaped connecting plate (5) respectively penetrate through the two slotted holes (7), and two ends of the U-shaped connecting plate (5) and the upper surface of the lower flange plate (22) are welded in a flat mode to form the welding point (8).
2. The newly added skylight installation node of the old factory building roof according to claim 1, wherein a plurality of support keels (4) are arranged in parallel, and two ends of each support keel (4) are welded with the lower flange plate (22) of the main keel (2) respectively.
3. The newly added skylight installation node of an old factory building roof according to claim 2, wherein the spacing between a plurality of parallel support keels (4) is 500mm.
4. The newly added skylight installation node of the old factory building roof according to claim 1, wherein the main joist (2) is I-steel, and the main joist (2) is further provided with an upper flange plate (21).
5. The newly added skylight installation node of the old factory building roof according to claim 1, wherein the inner shape of the U-shaped connecting plate (5) is matched and attached with the outer shape of the plate rib (6).
6. The newly-added skylight installation node of the old factory building roof according to claim 1, wherein a vertical keel (9) is welded above an upper flange plate (21) of the main keel (2), and a longitudinal keel (12) and a transverse keel (10) are welded above the vertical keel (9).
7. The newly added skylight installation node of the old factory building roof according to claim 6, wherein a skylight (11) is arranged above the longitudinal keels (12) and the transverse keels (10).
8. The newly-added skylight installation node for the old factory building roof according to claim 6, wherein glue injection sealing is carried out between the periphery of the skylight (11) and the decorative layer, and the periphery of the vertical keel (9) is sealed by adopting a cement pressure plate.
9. A construction process of a new skylight installation node of an old factory building roof according to any one of claims 1-8, comprising the following steps:
s1: -dismantling said roof panels (1) to form said openings (3), leaving said ribs (6) of said roof panels (1) at said openings (3);
s2: slotting is carried out on a lower flange plate (22) of the main keel (2) to form symmetrically arranged slotted holes (7), the main keel (2) is placed along the periphery of the hole (3), and the main keel (2) is placed on the plate rib (6);
s3: a plurality of support keels (4) are welded in parallel between the main keels (2);
s4: after the U-shaped connecting plate (5) surrounds the plate rib (6), two end parts of the U-shaped connecting plate (5) penetrate through the slotted holes (7) of the main keels (2) and are welded with the upper surface of the lower flange plate (22) in a flat mode;
s5: welding a vertical keel (9) above an upper flange plate (21) of the main keel (2), and installing a longitudinal keel (12) and a transverse keel (10) above the vertical keel (9);
s6: a skylight (11) is arranged above the longitudinal keels (12) and the transverse keels (10).
10. Construction process according to claim 9, characterized in that in S5 the vertical keel (9) is perpendicular to the ground, the horizontal installation of the skylight (11) being ensured by adjusting the length of the vertical keel (9).
CN202310249635.4A 2023-03-15 2023-03-15 Newly-added skylight installation node for old factory building roof and construction process thereof Pending CN116145991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310249635.4A CN116145991A (en) 2023-03-15 2023-03-15 Newly-added skylight installation node for old factory building roof and construction process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310249635.4A CN116145991A (en) 2023-03-15 2023-03-15 Newly-added skylight installation node for old factory building roof and construction process thereof

Publications (1)

Publication Number Publication Date
CN116145991A true CN116145991A (en) 2023-05-23

Family

ID=86358302

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310249635.4A Pending CN116145991A (en) 2023-03-15 2023-03-15 Newly-added skylight installation node for old factory building roof and construction process thereof

Country Status (1)

Country Link
CN (1) CN116145991A (en)

Similar Documents

Publication Publication Date Title
CA2835247C (en) Improvements to modular dwellings
US20100031593A1 (en) Sloping roof system and insulating board for sloping roof systems
CN107989315B (en) Kiln brick dry hanging system and construction method thereof
CN113668779A (en) Construction method of waterproof photovoltaic integrated roof
CN109667376B (en) Novel superposed floor system suitable for H-shaped steel beam of steel structure and construction method thereof
CN116145991A (en) Newly-added skylight installation node for old factory building roof and construction process thereof
CN217537582U (en) Steel construction consolidates roof device for architectural design
CN114182901B (en) Expansion joint waterproof repair construction method and repair structure thereof
CN213268014U (en) Corrugated cover plate mounting structure for advanced construction of roof post-cast strip
US4172346A (en) Construction panels
CN212153924U (en) Parapet waterproof repairing structure
KR100441965B1 (en) Prefabricated Water Proofing System for the Roof Slab
CN111088858B (en) Prefabricated gable capable of being recycled and connection structure thereof
CN215670173U (en) Steel construction building waterproof node
KR100717390B1 (en) Assembly precasted panel for excavation tunnel
KR20170091829A (en) Complex Steel Pipe Structure for Underground Wall and the Construction Method Using the Same
RU2108431C1 (en) Wall panel
CN205476135U (en) A flat roof that is used for formula eaves mouth that shields of gable department to reach including eaves mouth structure
CN220203221U (en) Assembled gutter structure assembled by embedding and repairing
CN210887819U (en) Enhancement mode assembled roofing cable seat structure
KR101657683B1 (en) Thermal insulation material with waterproofing properties and the method of constructing the same
CN111411743B (en) Parapet waterproof repairing method and parapet waterproof repairing structure
CN220364819U (en) Temporary road structure for subway upper cover building construction
CN108951887A (en) A kind of construction method of assembled autoclaved lightweight concrete parapet plate node
CN220521660U (en) Steel construction building outer envelope slat composite mounting structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination