CN112627446A - Hollow steel structure stair construction method - Google Patents
Hollow steel structure stair construction method Download PDFInfo
- Publication number
- CN112627446A CN112627446A CN202011438827.2A CN202011438827A CN112627446A CN 112627446 A CN112627446 A CN 112627446A CN 202011438827 A CN202011438827 A CN 202011438827A CN 112627446 A CN112627446 A CN 112627446A
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- Prior art keywords
- steel
- shaped
- stair
- welding
- construction
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/112—Treads of metal or with an upper layer of metal
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- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/0209—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention relates to a construction method of a hollow steel structure stair, which comprises an installed steel structure stair section beam, a T-shaped prefabricated steel plate, an L-shaped steel plate and the like; wherein to steel construction overall design during the major structure construction, the stair bench roof beam of construction in advance with the major structure connection, and confirm the elevation of girder steel according to the design drawing, the T shaped steel board on girder steel inclined plane is prefabricated framework processing factory according to bench length lofting in advance, the processing preparation, it is firm to weld with the bench roof beam along bench span direction after transporting to the scene, general steel construction stair main girder steel is two, only need with T shaped steel board with two main steel pipe welding can, wherein be the fretwork between the T template that the welding was accomplished and the T template, make processing L shaped steel board at the processing factory according to the big or small drawing size this moment, transport to on-the-spot back with T template welding, form the tread. The stair finished by the method has the advantages of good integrity, high rigidity and light dead weight, and can be welded according to a defensive line during construction, so that the probability of quality problems caused by human factors is low.
Description
Technical Field
The invention relates to the field of building construction, in particular to a construction method of a hollow steel structure stair.
Background
Generally, in order to meet the requirements of people stream evacuation in public buildings, sports centers or stadiums, public evacuation stairs are generally arranged from the second floor in the stadium to the first floor on the outdoor ground along the circumference of the stadium, and generally, the public evacuation stairs are reinforced concrete cast-in-place stairs or prefabricated integral steel structure stairs, so that how to ensure the high speed in the construction process, the installation is not influenced by the environment, the forming quality is good, the cost is low, and the goal pursued by people is achieved, and then the reinforced concrete cast-in-place stairs and the prefabricated integral steel structure stairs have the following disadvantages:
1. the cast-in-place reinforced concrete stairs need the processes of erecting templates, binding reinforcing steel bars, pouring concrete, maintaining, removing forms and the like, and the construction process is particularly complicated.
2. The prefabricated integral steel structure stair needs blanking, processing, manufacturing and transportation of a processing factory, and needs large-scale mechanical equipment for matched construction during installation, so that the cost is high.
3. The reinforced concrete cast-in-place stair is greatly influenced by external factors, the labor intensity of workers is high, the construction efficiency is low, and the potential safety hazard of the assembled integral steel structure in the hoisting process is large.
4. The stair adopting the reinforced concrete and the prefabricated and assembled integral steel structure has great self weight, and the quality problem caused by human factors in the construction process is difficult to control, in particular to a cast-in-place stair.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a hollow steel structure stair construction method, and solves the problems of complex construction process, high cost, low construction efficiency, large stair self weight, poor forming quality and the like.
In order to solve the technical problem, the invention is realized as follows:
a construction method of a hollow steel structure stair is characterized by comprising the following steps:
step 1, processing and manufacturing a steel structure ladder section beam in a prefabrication factory;
step 4, welding the T-shaped plates with the steel structure stair section beams after the T-shaped plates are transported to the site, wherein the process is a bearing structure of a stair decorative surface and the T-shaped plates must be welded according to relevant specifications of the steel structure;
step 4.1, the T-shaped plates are required to perform distance division on the steel stair step beam pull-through lines before welding starts, the front edges of all the T-shaped plates are ensured to be on an inclined plane, and the quality effect of later decorative layer construction is facilitated;
step 4.2, spot welding the T-shaped plate at the position of the stay wire in advance in the welding process, checking by an instrument after the steel beams at the two ends of the ladder section are spot welded, and fixing the T-shaped plate in full welding after the flatness and the inclination are met;
step 5, machining and manufacturing an L-shaped steel plate in a processing plant through drawing lofting;
step 6, welding the L-shaped steel plate with the upper surface of the T-shaped plate, wherein the length of the L-shaped steel plate is not less than 50mm, and the L-shaped steel plate is fully welded to ensure the flatness after welding;
and 7, constructing a decorative layer with ideal effect on the formed tread.
The construction method of the hollow steel structure stair is characterized by comprising the following steps: the thickness of the L-shaped steel plate is 6 mm.
The construction method of the hollow steel structure stair is characterized by comprising the following steps: the decorative layer is made of marble facing bricks.
The invention has the beneficial effects that: 1. the construction method does not need the processes of erecting templates, binding reinforcing steel bars, pouring concrete, maintaining, removing the form and the like, and the construction process is simple.
2. The method is formed by assembling and welding the components, does not need large-scale mechanical equipment for matching, and has simple operation and low cost.
3. By adopting the method, the construction is not influenced by external factors, the labor intensity of workers is low, the construction efficiency is high, and the potential safety hazard is small.
4. The stair constructed by the process has good integrity, high rigidity and light dead weight, and can be welded according to a defense line during construction, so that the probability of quality problems caused by human factors is low.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
fig. 1 is a schematic structural diagram of the present application.
Detailed Description
As shown in fig. 1: a construction method of a hollow steel structure stair comprises the following steps:
step 1, processing and manufacturing a steel structure ladder section beam 3 in a prefabrication factory;
step 4, welding the T-shaped plates with the steel structure stair section beams after the T-shaped plates are transported to the site, wherein the process is a bearing structure of a stair decorative surface and the T-shaped plates must be welded according to relevant specifications of the steel structure;
step 4.1, the T-shaped plates are required to perform distance division on the steel stair step beam pull-through lines before welding starts, the front edges of all the T-shaped plates are ensured to be on an inclined plane, and the quality effect of later decorative layer construction is facilitated;
step 4.2, spot welding the T-shaped plate at the position of the stay wire in advance in the welding process, checking by an instrument after the steel beams at the two ends of the ladder section are spot welded, and fixing the T-shaped plate in full welding after the flatness and the inclination are met;
step 5, machining and manufacturing an L-shaped steel plate 2 with the thickness of 6mm in a processing plant through drawing lofting;
step 6, welding an L-shaped steel plate with the thickness of 6mm with the upper surface of the T-shaped plate, wherein the length is not less than 50mm, and fully welding to ensure the flatness after welding;
and 7, constructing a decorative layer with an ideal effect on the formed tread, wherein the decorative layer adopts marble facing bricks.
Claims (3)
1. A construction method of a hollow steel structure stair is characterized by comprising the following steps:
step 1, processing and manufacturing a steel structure ladder section beam in a prefabrication factory;
step 2, paying off and mounting the ladder section beam according to a design drawing;
step 3, lofting, processing and manufacturing a T-shaped plate with the thickness of 20mm according to the length of the ladder section beam;
step 4, welding the T-shaped plates with the steel structure stair section beams after the T-shaped plates are transported to the site, wherein the process is a bearing structure of a stair decorative surface and the T-shaped plates must be welded according to relevant specifications of the steel structure;
step 4.1, the T-shaped plates are required to perform distance division on the steel stair step beam pull-through lines before welding starts, the front edges of all the T-shaped plates are ensured to be on an inclined plane, and the quality effect of later decorative layer construction is facilitated;
step 4.2, spot welding the T-shaped plate at the position of the stay wire in advance in the welding process, checking by an instrument after the steel beams at the two ends of the ladder section are spot welded, and fixing the T-shaped plate in full welding after the flatness and the inclination are met;
step 5, machining and manufacturing an L-shaped steel plate in a processing plant through drawing lofting;
step 6, welding the L-shaped steel plate with the upper surface of the T-shaped plate, wherein the length of the L-shaped steel plate is not less than 50mm, and the L-shaped steel plate is fully welded to ensure the flatness after welding;
and 7, constructing a decorative layer with ideal effect on the formed tread.
2. The stair construction method with the hollowed-out steel structure according to claim 1, wherein the method comprises the following steps: the thickness of the L-shaped steel plate is 6 mm.
3. The stair construction method with the hollowed-out steel structure according to claim 1, wherein the method comprises the following steps: the decorative layer is made of marble facing bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011438827.2A CN112627446A (en) | 2020-12-11 | 2020-12-11 | Hollow steel structure stair construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011438827.2A CN112627446A (en) | 2020-12-11 | 2020-12-11 | Hollow steel structure stair construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112627446A true CN112627446A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011438827.2A Pending CN112627446A (en) | 2020-12-11 | 2020-12-11 | Hollow steel structure stair construction method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080134589A1 (en) * | 2006-08-26 | 2008-06-12 | Alexander Abrams | System for modular building construction |
| CN204492042U (en) * | 2015-02-16 | 2015-07-22 | 徐州力泰钢结构有限公司 | A kind of low noise steel structure stairway |
| CN106869424A (en) * | 2017-03-16 | 2017-06-20 | 山东天元装饰工程有限公司 | Simple steel staircase |
| CN207620250U (en) * | 2017-12-12 | 2018-07-17 | 大作营造（北京）建设工程有限公司 | A kind of assembling type steel structure stair node being connect with interlayer beam |
| CN208518234U (en) * | 2018-07-06 | 2019-02-19 | 杭州铁木辛柯建筑结构设计事务所有限公司 | A kind of prefabricated step plate and steel structure connection construct |
-
2020
- 2020-12-11 CN CN202011438827.2A patent/CN112627446A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080134589A1 (en) * | 2006-08-26 | 2008-06-12 | Alexander Abrams | System for modular building construction |
| CN204492042U (en) * | 2015-02-16 | 2015-07-22 | 徐州力泰钢结构有限公司 | A kind of low noise steel structure stairway |
| CN106869424A (en) * | 2017-03-16 | 2017-06-20 | 山东天元装饰工程有限公司 | Simple steel staircase |
| CN207620250U (en) * | 2017-12-12 | 2018-07-17 | 大作营造（北京）建设工程有限公司 | A kind of assembling type steel structure stair node being connect with interlayer beam |
| CN208518234U (en) * | 2018-07-06 | 2019-02-19 | 杭州铁木辛柯建筑结构设计事务所有限公司 | A kind of prefabricated step plate and steel structure connection construct |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210409 |