CN113898224A - Construction method of assembled steel-concrete structure ladder stand - Google Patents
Construction method of assembled steel-concrete structure ladder stand Download PDFInfo
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- CN113898224A CN113898224A CN202111412713.5A CN202111412713A CN113898224A CN 113898224 A CN113898224 A CN 113898224A CN 202111412713 A CN202111412713 A CN 202111412713A CN 113898224 A CN113898224 A CN 113898224A
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- 239000004567 concrete Substances 0.000 title claims abstract description 31
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000002344 surface layer Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 10
- 238000009415 formwork Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/12—Tribunes, grandstands or terraces for spectators
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/062—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for stairs or steps
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Ladders (AREA)
Abstract
The invention discloses a construction method of an assembly type steel-concrete structure ladder stand, which specifically comprises the following steps: establishing a model of the steel-concrete structure ladder stand, and then prefabricating a steel structure assembly in a factory; transporting all the prefabricated steel structure components to an installation site; dividing the ladder stand into a plurality of ladder units, numbering the ladder units in sequence, recording the number of the ladder units as 1, 2 and 3 …, and assembling the odd ladder units on site; then hoisting the odd number step units in sequence; then assembling the first stepping beam, the second stepping beam and the stepping plate between the odd number step units according to the method; and after all the step units are assembled into a whole, binding a reinforcing mesh and supporting side dies outside the step plate on the whole surface layer, pouring concrete, and finishing the construction of the steel-concrete structure step grandstand. The construction method can effectively improve the working efficiency, and cannot influence the roof construction and the operation space in a venue.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a construction method of an assembly type steel-concrete structure ladder stand.
Background
With the continuous improvement of living standard, a large number of sports and cultural buildings such as gymnasiums and theaters are built, and the ladder stand is an indispensable component in the gymnasiums such as the gymnasiums and the theaters.
At present, the step grandstand generally adopts a steel bar cast-in-place concrete grandstand structure, namely, a column or a wall is adopted to support the grandstand plate, and the grandstand plate, the column and the wall all adopt cast-in-place concrete. And need the formwork when the construction, concrete placement needs the pump concrete, and the site operation work volume is big, and the construction cycle is long, simultaneously, because inside place in the venue is usually used as the assembly place or large-scale hoisting equipment operation place during the construction, the ladder stand of construction this moment will lead to the inside no operation place in the venue, and still easily cause the vertical cross construction from top to bottom, cause the potential safety hazard.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a construction method of an assembly type steel-concrete structure ladder stand, which can effectively improve the working efficiency and does not influence the roof construction and the operation space in a venue.
The technical scheme of the invention is realized as follows:
a construction method of an assembly type steel-concrete structure ladder stand specifically comprises the following steps:
(1) establishing a model of a steel-concrete structure ladder stand, and prefabricating a steel structure assembly in a factory, wherein the steel structure assembly comprises an upper supporting beam, a lower supporting beam, a plurality of supporting columns, a plurality of ladder beams, a plurality of stepping brackets, a plurality of stepping beams and a plurality of stepping plates; the support columns comprise a plurality of short support columns for supporting the lower support beam and a plurality of long support columns for supporting the upper support beam; the ladder beam is composed of a long beam which is obliquely arranged, and an upper cross beam and a lower cross beam which are horizontally arranged at the upper end and the lower end of the long beam, and the front end of the upper cross beam and the rear end of the lower cross beam are respectively fixed with the long beam correspondingly, so that a Z-shaped structure is formed; the stepping bracket is composed of a horizontal rod and a vertical rod which are horizontally arranged, and the upper end of the vertical rod is fixed with one end of the horizontal rod, so that an L-shaped structure is formed; the step plate is composed of a horizontal plate and a vertical plate, the horizontal plate is horizontally arranged, the vertical plate is vertically arranged, and the lower end of the vertical plate is fixed with the edge of one side of the horizontal plate, so that an L-shaped structure is formed;
(2) transporting all the prefabricated steel structure components to an installation site, installing short support columns and long support columns on the ground, and respectively assembling lower support beams and upper support beams on the short support columns and the long support columns;
(3) dividing the ladder stand into a plurality of ladder units, numbering the ladder units in sequence, and marking as 1, 2 and 3 …, assembling the odd ladder units on site, wherein each ladder unit comprises two ladder beams, a plurality of step brackets, a plurality of step beams and a plurality of step plates; sequentially welding step brackets end to end on the long beams of the two step beams, wherein the free ends and the vertical rods of the cross rods of the step brackets are respectively welded and fixed with the long beams, then the step beams are horizontally fixed between the step beams, the step beams are divided into a first step beam and a second step beam, the two ends of the first step beam are respectively fixed with the upper ends of the vertical rods of the two step brackets positioned on the two step beams, the two ends of the second step beam are respectively fixed corresponding to the two step beams corresponding to the cross rods of the two step brackets, the horizontal plates of the step plates are welded and fixed on the upper surfaces of the first step beam and the second step beam, and meanwhile, the vertical plates of the step plates are welded and fixed with the corresponding first step beams; thus completing the assembly of all singular step units;
(4) then hoisting the odd number of step units in sequence, and welding and fixing the upper cross beam and the lower cross beam of the two step beams of each step unit with the upper supporting beam and the lower supporting beam respectively;
(5) then assembling the first stepping beam, the second stepping beam and the stepping plate between the odd number step units according to the method of the step (3);
(6) and after all the step units are assembled into a whole, binding a reinforcing mesh on the whole surface layer, supporting the side die on the outer side of the whole step plate, pouring concrete, and finishing the construction of the steel-concrete structure step grandstand after pouring.
Further, the inclination angle of the long beam is 30-45 degrees.
Further, the ladder beam all adopts H shaped steel to make with the roof beam of marking time, the bracket of marking time adopts the quarter bend to make, and the bracket setting of marking time is on the top flange of ladder beam, and the step board setting is fixed with the lower flange that is located the first roof beam of marking time of the ladder of top on the roof beam top flange of marking time and step board turn over hem upper end.
Furthermore, the left side and the right side of the top end of each treading bracket vertical rod are provided with first connecting lugs, correspondingly, the two ends of each first treading beam are respectively provided with first connecting holes corresponding to the first connecting lugs, and the first treading beams are conveniently fixed on the treading brackets through first connecting bolts; the left side and the right side of the two ladder beam webs corresponding to the cross bar of each stepping bracket are provided with second connecting lugs, correspondingly, the two ends of each second stepping beam are respectively provided with second connecting holes corresponding to the second connecting lugs, and the second stepping beams are convenient to fix on the two ladder beams through second connecting bolts.
Further, before the reinforcing mesh is bound, bolts are evenly welded on the periphery of the horizontal plate of each step plate close to the edge.
Compared with the prior art, the invention has the following beneficial effects:
1. the main connecting nodes of the invention are fixed by bolts, and the steel structural members such as the step plates, the step brackets, the ladder beams, the step beams and the like can be processed in batches in factories, and then the step units are assembled and assembled on site and then hoisted, thus not only improving the construction speed, but also reducing the high-altitude welding and cutting operation, meeting the advocation idea of green construction and having no influence on roof construction and operation space in a venue.
2. The invention has convenient operation, can effectively improve the working efficiency, reduces the on-site support modulus and the stripping amount by welding the step plate and the first step beam to form the closed template, is practical and beautiful, and is beneficial to improving the construction efficiency.
Drawings
Fig. 1-a schematic structural view of the ladder stand.
Fig. 2-schematic structural view of the ladder unit.
Wherein: wherein: 1-a lower support beam; 2-short support columns; 3-upper supporting beam; 4-a lower cross beam; 5, an upper cross beam; 6-vertical rod; 7-a cross bar; 8-a second step beam; 9-a first tread beam; 10-step plate; 11-a stud; 12-concrete; 13-a long beam; 14-a first connecting lug; 15-second connecting lug.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, a construction method of an assembly type steel-concrete structure ladder stand specifically includes the following steps:
(1) establishing a model of a steel-concrete structure ladder stand, and prefabricating a steel structure assembly in a factory, wherein the steel structure assembly comprises an upper support beam 3, a lower support beam 1, a plurality of support columns, a plurality of ladder beams, a plurality of step brackets, a plurality of step beams and a plurality of step plates 10; the support columns include a plurality of short support columns 2 for supporting the lower support beam 1 and a plurality of long support columns (not shown) for supporting the upper support beam 3; the ladder beam is composed of a long beam 13 which is obliquely arranged, and an upper beam 5 and a lower beam 4 which are horizontally arranged at the upper end and the lower end of the long beam 13, and the front end of the upper beam 5 and the rear end of the lower beam 4 are respectively fixed with the long beam 13 correspondingly, so that a Z-shaped structure is formed; the stepping bracket is composed of a horizontal rod 7 and a vertical rod 6 which are horizontally arranged, and the upper end of the vertical rod 6 is fixed with one end of the horizontal rod 7, so that an L-shaped structure is formed; the step plate 10 is composed of a horizontal plate horizontally arranged and a vertical plate vertically upwards arranged, and the lower end of the vertical plate is fixed with one edge of the horizontal plate, so that an L-shaped structure is formed;
(2) transporting all the prefabricated steel structure components to an installation site, installing short supporting columns 2 and long supporting columns on the ground, and respectively assembling lower supporting beams 1 and upper supporting beams 3 on the short supporting columns 2 and the long supporting columns;
(3) dividing the ladder stand into a plurality of ladder units, numbering the ladder units in sequence, and marking as 1, 2 and 3 …, assembling the odd ladder units on site, wherein each ladder unit comprises two ladder beams, a plurality of step brackets, a plurality of step beams and a plurality of step plates 10; sequentially welding step brackets end to end on the long beams 13 of the two step beams, wherein the free ends of the cross rods 7 of the step brackets and the vertical rods 6 are respectively welded and fixed with the long beams 13, then the step beams are horizontally fixed between the step beams, the step beams are divided into first step beams 9 and second step beams 8, the two ends of each first step beam 9 are respectively fixed with the upper ends of the vertical rods 6 of the two step brackets positioned on the two step beams, the two ends of each second step beam 8 are respectively fixed corresponding to the two step beams corresponding to the cross rods 7 of the two step brackets, the horizontal plates of the step plates 10 are welded and fixed on the upper surfaces of the first step beams 9 and the second step beams 8, and meanwhile, the vertical plates of the step plates 10 are welded and fixed with the corresponding first step beams 9; thus completing the assembly of all singular step units;
(4) then hoisting the odd number of step units in sequence, and respectively welding and fixing the upper cross beam 5 and the lower cross beam 4 of the two step beams of each step unit with the upper supporting beam 3 and the lower supporting beam 1;
(5) then assembling the first stepping beam 9, the second stepping beam 8 and the stepping plate 10 between the odd number step units according to the method of the step (3);
(6) and after assembling all the step units to form a whole, binding a reinforcing mesh on the whole surface layer, supporting a side die on the outer side of the whole step plate, pouring concrete 12, and finishing the construction of the steel-concrete structure step grandstand after pouring.
The upper supporting beam, the lower supporting beam and the bearing structure which is used for supporting the whole ladder stand formed by the upper supporting beam and the lower supporting beam are arranged on the bearing structure. Whereas for a single ladder unit the two ladder beams are load bearing structures. Therefore, the bottom die is formed by the tread plate and the first tread beam, concrete can be poured only by supporting the formwork outside the tread plate, the formwork supporting quantity is reduced, and the construction efficiency is improved.
In the embodiment, the thickness of the poured concrete is 100-120 mm. In this embodiment, the step plate is a profiled floor support plate with a thickness of about 0.6-1.6 mm. As can be seen from FIG. 1, except that the stepping ladder located at the top end of the ladder unit does not include the second stepping beam, the stepping ladder at the bottom end of the ladder unit does not include the first stepping beam, the middle stepping ladder includes the first stepping beam and the second stepping beam, and the upper support beam serves as the second stepping beam of the stepping ladder located at the top end of the ladder unit, and the lower support beam serves as the first stepping beam of the stepping ladder located at the bottom end of the ladder unit.
In specific implementation, the inclination angle of the long beam is 30-45 degrees.
During concrete implementation, the ladder beam all adopts H shaped steel to make with the roof beam of marking time, the bracket of marking time adopts the quarter bend to make, and the bracket setting of marking time is on the top flange of ladder beam, and the footboard setting is fixed on the roof beam top flange of marking time and footboard turn over hem upper end and the lower flange that is located the first roof beam of marking time of the ladder of top.
In this embodiment, the upper cross beam, the lower cross beam and the long beam of the ladder beam are integrally formed and are formed by bending H-shaped steel.
In specific implementation, the left side and the right side of the top end of each stepping bracket vertical rod 6 are provided with first connecting lugs 14, correspondingly, the two ends of the first stepping beam 9 are respectively provided with first connecting holes corresponding to the first connecting lugs 14, so that the first stepping beam 9 can be conveniently fixed on the stepping bracket through first connecting bolts; the left and right sides of two ladder beam webs that every bracket horizontal pole 7 of marking time corresponds are equipped with second and connect journal stirrup 15, correspondingly, the second 8 both ends of marking time the roof beam be equipped with respectively with the second be connected the second connecting hole that journal stirrup 15 corresponds, the second of being convenient for mark time roof beam 8 and pass through the second connecting bolt to be fixed on two ladder beams.
Therefore, the first stepping beam and the second stepping beam of the two step units positioned at two sides of the ladder beam can be connected with the ladder beam and the stepping bracket arranged on the ladder beam through the connecting bolt. Therefore, the construction is convenient, welding is not needed, and the construction efficiency is improved. The second connecting support lug not only plays a role in connection, but also plays a role in reinforcement, and the structural stability of the ladder beam can be effectively improved.
In the specific implementation, before the reinforcing mesh is bound, the pegs 11 are evenly welded around the horizontal plate of each step plate 10.
The stud is a fastener of high strength rigidity connection, plays the effect of connecting steel construction and reinforced concrete surface course, adopts to pierce through stud welding and makes the step plate weld through, makes stud, step plate and steel member three link together.
Finally, it should be noted that the above-mentioned examples of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes and modifications of the present invention are within the scope of the present invention.
Claims (5)
1. A construction method of an assembled steel-concrete structure ladder stand is characterized by comprising the following steps:
(1) establishing a model of a steel-concrete structure ladder stand, and prefabricating a steel structure assembly in a factory, wherein the steel structure assembly comprises an upper supporting beam, a lower supporting beam, a plurality of supporting columns, a plurality of ladder beams, a plurality of stepping brackets, a plurality of stepping beams and a plurality of stepping plates; the support columns comprise a plurality of short support columns for supporting the lower support beam and a plurality of long support columns for supporting the upper support beam; the ladder beam is composed of a long beam which is obliquely arranged, and an upper cross beam and a lower cross beam which are horizontally arranged at the upper end and the lower end of the long beam, and the front end of the upper cross beam and the rear end of the lower cross beam are respectively fixed with the long beam correspondingly, so that a Z-shaped structure is formed; the stepping bracket is composed of a horizontal rod and a vertical rod which are horizontally arranged, and the upper end of the vertical rod is fixed with one end of the horizontal rod, so that an L-shaped structure is formed; the step plate is composed of a horizontal plate and a vertical plate, the horizontal plate is horizontally arranged, the vertical plate is vertically arranged, and the lower end of the vertical plate is fixed with the edge of one side of the horizontal plate, so that an L-shaped structure is formed;
(2) transporting all the prefabricated steel structure components to an installation site, installing short support columns and long support columns on the ground, and respectively assembling lower support beams and upper support beams on the short support columns and the long support columns;
(3) dividing the ladder stand into a plurality of ladder units, numbering the ladder units in sequence, and marking as 1, 2 and 3 …, assembling the odd ladder units on site, wherein each ladder unit comprises two ladder beams, a plurality of step brackets, a plurality of step beams and a plurality of step plates; sequentially welding step brackets end to end on the long beams of the two step beams, wherein the free ends and the vertical rods of the cross rods of the step brackets are respectively welded and fixed with the long beams, then the step beams are horizontally fixed between the step beams, the step beams are divided into a first step beam and a second step beam, the two ends of the first step beam are respectively fixed with the upper ends of the vertical rods of the two step brackets positioned on the two step beams, the two ends of the second step beam are respectively fixed corresponding to the two step beams corresponding to the cross rods of the two step brackets, the horizontal plates of the step plates are welded and fixed on the upper surfaces of the first step beam and the second step beam, and meanwhile, the vertical plates of the step plates are welded and fixed with the corresponding first step beams; thus completing the assembly of all singular step units;
(4) then hoisting the odd number of step units in sequence, and welding and fixing the upper cross beam and the lower cross beam of the two step beams of each step unit with the upper supporting beam and the lower supporting beam respectively;
(5) then assembling the first stepping beam, the second stepping beam and the stepping plate between the odd number step units according to the method of the step (3);
(6) and after all the step units are assembled into a whole, binding a reinforcing mesh on the whole surface layer, supporting the side die on the outer side of the whole step plate, pouring concrete, and finishing the construction of the steel-concrete structure step grandstand after pouring.
2. The construction method of the assembled steel-concrete structure ladder stand according to claim 1, wherein the inclination angle of the long beam is 30-45 °.
3. The construction method of the assembled steel-concrete structure ladder stand according to claim 1, wherein the ladder beam and the step beam are both made of H-shaped steel, the step bracket is made of a rectangular pipe, the step bracket is arranged on an upper flange of the ladder beam, the step plate is arranged on the upper flange of the step beam, and the upper end of a turning edge of the step plate is fixed with a lower flange of a first step beam of the step ladder above.
4. The construction method of the assembled steel-concrete structure ladder stand as claimed in claim 3, wherein the left and right sides of the top end of the vertical bar of each step bracket are provided with first connecting lugs, correspondingly, the two ends of the first step beam are respectively provided with first connecting holes corresponding to the first connecting lugs, so that the first step beam can be conveniently fixed on the step bracket through the first connecting bolts; the left side and the right side of the two ladder beam webs corresponding to the cross bar of each stepping bracket are provided with second connecting lugs, correspondingly, the two ends of each second stepping beam are respectively provided with second connecting holes corresponding to the second connecting lugs, and the second stepping beams are convenient to fix on the two ladder beams through second connecting bolts.
5. The method of claim 1, wherein the studs are welded uniformly around the adjacent edges of the horizontal plates of each step prior to the step of binding the reinforcing mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111412713.5A CN113898224A (en) | 2021-11-25 | 2021-11-25 | Construction method of assembled steel-concrete structure ladder stand |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111412713.5A CN113898224A (en) | 2021-11-25 | 2021-11-25 | Construction method of assembled steel-concrete structure ladder stand |
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| CN113898224A true CN113898224A (en) | 2022-01-07 |
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| CN202111412713.5A Pending CN113898224A (en) | 2021-11-25 | 2021-11-25 | Construction method of assembled steel-concrete structure ladder stand |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341665A (en) * | 2022-09-02 | 2022-11-15 | 安徽新华学院 | Assembled connecting piece and prefabricated building of concatenation thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025052A (en) * | 2007-03-16 | 2007-08-29 | 北京城建集团有限责任公司 | Cast-in-situ clear-water concrete viewing platform form board and its construction method |
| FR2962143A1 (en) * | 2010-07-01 | 2012-01-06 | P B M Groupe | PREFABRICATED STAIRCASE IN CONCRETE WITH MODULAR RACK |
| CN204282685U (en) * | 2014-12-12 | 2015-04-22 | 宝钢建筑系统集成有限公司 | A kind of assembling stair |
| CN205476467U (en) * | 2016-01-29 | 2016-08-17 | 江苏南通二建集团有限公司 | Prefabricated steel stair template with adjustable |
| KR101658929B1 (en) * | 2015-09-03 | 2016-09-22 | (주)지아이건설 | Precast box structure and construction method thereof |
| CN206495433U (en) * | 2017-02-15 | 2017-09-15 | 北京四汇建筑工程有限责任公司 | A kind of assembled steel structure stair |
| CN209556454U (en) * | 2019-01-25 | 2019-10-29 | 天津市瑞隆禧钢铁有限公司 | A kind of Stand Inclined Beams |
| CN213015051U (en) * | 2020-05-24 | 2021-04-20 | 长沙三远钢结构有限公司 | Steel structure stair for multi-storey residential building |
| CN112878750A (en) * | 2021-01-06 | 2021-06-01 | 中国建筑第八工程局有限公司 | Continuous bare concrete prefabricated stand plate and construction method thereof |
-
2021
- 2021-11-25 CN CN202111412713.5A patent/CN113898224A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025052A (en) * | 2007-03-16 | 2007-08-29 | 北京城建集团有限责任公司 | Cast-in-situ clear-water concrete viewing platform form board and its construction method |
| FR2962143A1 (en) * | 2010-07-01 | 2012-01-06 | P B M Groupe | PREFABRICATED STAIRCASE IN CONCRETE WITH MODULAR RACK |
| CN204282685U (en) * | 2014-12-12 | 2015-04-22 | 宝钢建筑系统集成有限公司 | A kind of assembling stair |
| KR101658929B1 (en) * | 2015-09-03 | 2016-09-22 | (주)지아이건설 | Precast box structure and construction method thereof |
| CN205476467U (en) * | 2016-01-29 | 2016-08-17 | 江苏南通二建集团有限公司 | Prefabricated steel stair template with adjustable |
| CN206495433U (en) * | 2017-02-15 | 2017-09-15 | 北京四汇建筑工程有限责任公司 | A kind of assembled steel structure stair |
| CN209556454U (en) * | 2019-01-25 | 2019-10-29 | 天津市瑞隆禧钢铁有限公司 | A kind of Stand Inclined Beams |
| CN213015051U (en) * | 2020-05-24 | 2021-04-20 | 长沙三远钢结构有限公司 | Steel structure stair for multi-storey residential building |
| CN112878750A (en) * | 2021-01-06 | 2021-06-01 | 中国建筑第八工程局有限公司 | Continuous bare concrete prefabricated stand plate and construction method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341665A (en) * | 2022-09-02 | 2022-11-15 | 安徽新华学院 | Assembled connecting piece and prefabricated building of concatenation thereof |
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Application publication date: 20220107 |