CN116136937A - Design method of horizontal stay bar of combined support system of outer steel frame and inner straight cylinder of water tower - Google Patents
Design method of horizontal stay bar of combined support system of outer steel frame and inner straight cylinder of water tower Download PDFInfo
- Publication number
- CN116136937A CN116136937A CN202310262017.3A CN202310262017A CN116136937A CN 116136937 A CN116136937 A CN 116136937A CN 202310262017 A CN202310262017 A CN 202310262017A CN 116136937 A CN116136937 A CN 116136937A
- Authority
- CN
- China
- Prior art keywords
- tangential
- stay bar
- support system
- steel
- steel beam
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 58
- 239000010959 steel Substances 0.000 title claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004364 calculation method Methods 0.000 claims abstract description 5
- 230000001687 destabilization Effects 0.000 claims description 2
- 230000005251 gamma ray Effects 0.000 claims description 2
- 238000012938 design process Methods 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- 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
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
-
- 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
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
-
- 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
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/30—Water-towers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Geometry (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Evolutionary Computation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to the field of civil engineering, and relates to a design method of a horizontal stay bar of a combined support system of an outer steel frame and an inner straight cylinder of a water tower. The horizontal brace rod is characterized by comprising two parts, namely a cross brace rod and a tangential brace rod, and the two parts are used for providing rigidity guarantee for a beam structure in a support system. The number of cross brace rods is determined by the radius of the circle surrounded by the inner side point and the radius of the circle surrounded by the outer side point of the radial steel beam, and the calculation method of the section of the horizontal brace rod section steel of the combined support system of the outer steel frame and the inner straight cylinder of the water tower is provided by the necessary rigidity formula of the single tangential brace rod required by the steel beam and the rigidity calculation formula of the horizontal tangential brace rod. The horizontal stay bars can combine the tangential beams into a whole and improve the overall rigidity of the tangential beams so as to exert the advantage of cooperative stress. The invention provides a design method for the design of the horizontal stay bar of the combined support system of the outer steel frame and the inner straight cylinder of the water tower, and provides a reasonable and reliable analysis method for other combined support systems.
Description
Technical Field
The invention belongs to the field of civil engineering, and relates to a design method of a horizontal stay bar of a combined support system of an outer steel frame and an inner straight cylinder of a water tower.
Background
In industrial and civil buildings, a water tower is used as a high-rise water distribution structure, and a support system is often required to be arranged in the construction process so as to meet the construction requirements; the existing construction methods at home and abroad are a full-hall type scaffold template support system and an overhanging type scaffold support system, however, the two support systems have the problems of complex stress, large danger coefficient, uneconomical and the like in the construction of a water tower, and the problems of building height exceeding the standard requirement of a scaffold and the like can occur when the design of a higher water tower is faced; compared with the support system, the support system combining the outer steel frame and the inner straight cylinder of the water tower has the advantages of strong bearing capacity, simple structure, definite force transmission, safety, reliability and the like because the steel frame is adopted to replace a scaffold.
The horizontal stay bars are used as important measures for improving the integrity of the steel frame structure and guaranteeing the stability of the steel beam, and play a key role in the structure; however, the design method of the horizontal stay bar of the support system is not clear, and especially in the annular arrangement of the steel frame, under the condition that the stress condition of the steel beam is complex, how to arrange the horizontal stay bar to ensure the stability and the safety of the steel beam becomes an important problem of the design of the support system.
Disclosure of Invention
The invention aims at providing a design method of a horizontal stay rod aiming at a combined support system of an outer steel frame and an inner straight cylinder of a water tower.
The invention is realized by the following technical scheme:
the first step: according to the radius R of the circle surrounded by the inner side point and the radius R of the circle surrounded by the outer side point of the radial steel beam, determining the number of cross braces required to be arranged by looking up the following table:
and a second step of: calculating the necessary rigidity K of a single tangential stay required by a steel beam T ：
Wherein: e is the elastic modulus of the steel beam; i y The moment of inertia of the steel beam around the y axis; h is the section height of the steel beam; b 0 The calculation formula of the distance from the rotation center to the shear center in destabilization is (2), wherein G is shear modulus, I t Is free torsion constant, I ω The section fanning moment of inertia, i is the length of the steel beam; epsilon is a supporting coefficient, and the calculation method is (3), wherein a is the number of radial beams, m is the number of truss rods for arranging cross braces, and b is the number of tangential braces;
and a third step of: calculating the cross section moment of inertia of the tangential stay bar, and selecting the section steel section of the horizontal stay bar:
the stiffness formula of the tangential stay bar is:
let K according to the above formula (1) and formula (4) c ≥K T The formula of the cross section moment of inertia of the tangential stay bar is:
wherein: phi (phi) c For the stability coefficient of the tangential stay bar, the stability coefficient of the tangential stay bar is improved by inquiring the steel structure standardThe stable coefficient table of the (2) is obtained; e (E) c The elastic modulus of the tangential stay bar; i cy Moment of inertia of the tangential stay rod around the y axis; η is the rigidity increasing coefficient, 1.8; alpha is the angle between the tangential stay bar and the steel beam; gamma ray r For the resistance component coefficient, Q235 is 1.090, and Q355-Q390 are 1.125; mu is a calculated length coefficient, two ends are hinged to be 1, two ends are just connected to be 0.5, and one end is hinged to be 0.7; l (L) c Is the length of the tangential stay.
The invention has the beneficial effects that: aiming at the possible steel beam stability problem of the combined support system of the outer steel frame and the straight cylinder in the water tower, the possible influence factors of the combined support system are reasonably analyzed, and the arrangement method and the section design method of the horizontal stay bar of the support system are provided.
Drawings
FIG. 1 is a plan view of a steel girder according to an embodiment of the present invention;
FIG. 2 is a plan view of a horizontal strut according to an embodiment of the present invention;
FIG. 3 is a plan view of a horizontal strut node in accordance with an embodiment of the present invention;
fig. 4 is an elevation view of a horizontal strut node in accordance with an embodiment of the present invention.
In the figure: 1 inner straight cylinder, 2 radial steel girder, 3 annular steel girder, 4 tangential stay bar, 5 cross stay bar.
Detailed Description
The invention is further illustrated by way of example with reference to the accompanying drawings.
Examples
The design method of the horizontal stay bar of the outer steel frame and water tower inner straight tube combined support system is characterized in that the horizontal stay bar of the outer steel frame and water tower inner straight tube combined support system consists of a tangential stay bar 4 and a cross stay bar 5; taking a concrete pouring construction platform of a reverse taper water tank at the top of a Seadded water tower project as an example, the height of a straight cylinder in the water tower is 40.7m, the outer radius is 4.8m, the wall thickness is 0.3m, the length of a radial beam is 7.1m, the radial beam adopts national standard HM200×150X6X9H-shaped steel, the steel grade is Q355B, the radius of a circle surrounded by the outer side point of the radial beam is 11.9m, the number of truss of the radial beam is 12 truss, and tangential supports are arranged at the middle point of the radial beam and the length is 4.284m.
The design method of the horizontal stay bar of the combined support system of the outer steel frame and the inner straight cylinder of the water tower comprises the following steps:
the first step: according to the radius R of the circle surrounded by the inner side point and the radius R of the circle surrounded by the outer side point of the radial steel beam, determining that the number of cross braces required to be arranged is 4 through table lookup;
and a second step of: calculating the necessary rigidity K of a single tangential stay required by a steel beam T ：
Wherein:
the necessary stiffness of the single tangential stay is:
and a third step of: calculating the cross section moment of inertia of the tangential stay bar, and selecting the section steel section of the horizontal stay bar:
the stiffness formula of the tangential stay bar is:
let K c ≥K T The resulting tangential strut has a cross-sectional moment of inertia of:
by inquiring the section characteristic table of the section steel in the hot rolled section steel GB/T706-2016, the section steel with the section size of hot rolled No. 10 channel steel is selected, and the strength grade of the steel is Q355B, I y ＝25.6cm 4 。
While the specific design method of the present invention has been described above with reference to the accompanying drawings, it is not intended to limit the scope of the invention, and it will be apparent to those skilled in the art that various modifications or variations can be made without the need for inventive work on the basis of the design scheme of the present invention, and still fall within the scope of the invention.
Claims (1)
1. The design method of the horizontal stay bar of the outer steel frame and water tower inner straight tube combined support system is characterized in that the horizontal stay bar of the outer steel frame and water tower inner straight tube combined support system consists of two parts, namely a cross stay bar and a tangential stay bar, the former and a steel beam form a truss structure, the latter supports the steel beam, and the design process comprises the following steps:
the first step: according to the radius R of the circle surrounded by the inner side point and the radius R of the circle surrounded by the outer side point of the radial steel beam, determining the number of cross braces required to be arranged by looking up the following table:
and a second step of: calculating the necessary rigidity K of a single tangential stay required by a steel beam T ：
Wherein: e is the elastic modulus of the steel beam; i y The moment of inertia of the steel beam around the y axis; h is the section height of the steel beam; b 0 Is a steel beamThe distance from the rotation center to the shear center during destabilization is calculated as (2), wherein G is shear modulus, I t Is free torsion constant, I ω The section fanning moment of inertia, i is the length of the steel beam; epsilon is a supporting coefficient, and the calculation method is (3), wherein a is the number of radial beams, m is the number of truss rods for arranging cross braces, and b is the number of tangential braces;
and a third step of: calculating the cross section moment of inertia of the tangential stay bar, and selecting the section steel section of the horizontal stay bar:
the stiffness formula of the tangential stay bar is:
let K according to the above formula (1) and formula (4) c ≥K T The formula of the cross section moment of inertia of the tangential stay bar is:
wherein: phi (phi) c The stability coefficient of the tangential stay bar is obtained by inquiring a stability coefficient table in steel structure standard; e (E) c The elastic modulus of the tangential stay bar; i cy Moment of inertia of the tangential stay rod around the y axis; η is the rigidity increasing coefficient, 1.8; alpha is the angle between the tangential stay bar and the steel beam; gamma ray r For the resistance component coefficient, Q235 is 1.090, and Q345-Q390 are 1.125; mu is a calculated length coefficient, two ends are hinged to be 1, two ends are just connected to be 0.5, and one end is hinged to be 0.7; l (L) c Is the length of the tangential stay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310262017.3A CN116136937B (en) | 2023-03-17 | 2023-03-17 | Design method of horizontal stay bar of combined support system of outer steel frame and inner straight cylinder of water tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310262017.3A CN116136937B (en) | 2023-03-17 | 2023-03-17 | Design method of horizontal stay bar of combined support system of outer steel frame and inner straight cylinder of water tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116136937A true CN116136937A (en) | 2023-05-19 |
| CN116136937B CN116136937B (en) | 2024-07-05 |
Family
ID=86333599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310262017.3A Active CN116136937B (en) | 2023-03-17 | 2023-03-17 | Design method of horizontal stay bar of combined support system of outer steel frame and inner straight cylinder of water tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116136937B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101169459B1 (en) * | 2011-07-04 | 2012-08-03 | 최영준 | Steel beam connector and steel beam structure using the same |
| JP2014153995A (en) * | 2013-02-12 | 2014-08-25 | Panahome Corp | Design method of architectural structure, manufacturing method using the same, and design device using the same |
| CN212866331U (en) * | 2020-06-24 | 2021-04-02 | 东莞市新世纪重钢有限公司 | High-low beam supporting steel structure |
| CN115544794A (en) * | 2022-10-26 | 2022-12-30 | 中冶建筑研究总院有限公司 | Fatigue life prediction-based support steel frame design parameter selection method |
| CN115758542A (en) * | 2022-11-30 | 2023-03-07 | 中国建筑西南设计研究院有限公司 | Spatial multi-ribbed steel beam floor system analysis method |
-
2023
- 2023-03-17 CN CN202310262017.3A patent/CN116136937B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101169459B1 (en) * | 2011-07-04 | 2012-08-03 | 최영준 | Steel beam connector and steel beam structure using the same |
| JP2014153995A (en) * | 2013-02-12 | 2014-08-25 | Panahome Corp | Design method of architectural structure, manufacturing method using the same, and design device using the same |
| CN212866331U (en) * | 2020-06-24 | 2021-04-02 | 东莞市新世纪重钢有限公司 | High-low beam supporting steel structure |
| CN115544794A (en) * | 2022-10-26 | 2022-12-30 | 中冶建筑研究总院有限公司 | Fatigue life prediction-based support steel frame design parameter selection method |
| CN115758542A (en) * | 2022-11-30 | 2023-03-07 | 中国建筑西南设计研究院有限公司 | Spatial multi-ribbed steel beam floor system analysis method |
Non-Patent Citations (1)
| Title |
|---|
| 孟兆凯;刘继明;潘越;邹玉娜;: "考虑时空效应坞口围堰基坑内支撑体系结构计算方法研究", 青岛理工大学学报, no. 04, 24 July 2013 (2013-07-24), pages 5 - 8 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116136937B (en) | 2024-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230222260A1 (en) | Method for calculating bending moment resistance of internal unbonded post-tensioned composite beam with corrugated steel webs (csws) and double-concrete-filled steel tube (cfst) lower flange | |
| CN116136937B (en) | Design method of horizontal stay bar of combined support system of outer steel frame and inner straight cylinder of water tower | |
| CN214498388U (en) | Assembled overhanging formwork support bent | |
| CN116305468B (en) | Method for calculating bearing capacity of vertical support rod piece of combined support system of outer steel frame and inner straight cylinder of water tower | |
| CN212000576U (en) | Structure damping device on deck type concrete arch bridge arch | |
| CN211816950U (en) | Light steel pipe concrete frame structure node | |
| CN110952463B (en) | Reverse jacking reinforcement method and jacking structure of concrete box girder bridge | |
| CN116244960A (en) | Method for determining bearing capacity of radial beam of combined support system of outer steel frame and inner straight cylinder of water tower | |
| CN214737303U (en) | Truss type steel pipe concrete cable tower structure | |
| CN109914694A (en) | A kind of steel-structure factory building load-bearing pillar and its manufacturing method | |
| CN107700824A (en) | Bar type wall-attached frame | |
| CN211037548U (en) | Truss structure for roof | |
| CN210917011U (en) | Cable tower structure and bridge | |
| CN212507295U (en) | Overhanging steel platform | |
| CN208815685U (en) | A kind of rigid joint of the girder steel that girder steel is through and concrete column | |
| CN207277893U (en) | A kind of section steel platform formwork erecting structure for high-altitude overhanging | |
| CN207092501U (en) | A kind of high-altitude support frame | |
| CN205329555U (en) | Interim bearing structure | |
| CN205840138U (en) | A kind of assembled wide span steel roof frame structure | |
| CN215717191U (en) | Integral lifting type elevator shaft operating platform | |
| CN219430545U (en) | Operation platform for utilizing stiffness framework for tower column head section | |
| CN219568899U (en) | Conversion device for basement structural beam and foundation pit enclosure lattice column | |
| CN216864852U (en) | Double-deck I shaped steel construction bracket of large-scale bent cap | |
| CN217460296U (en) | Vertical reinforcing vertical rod device for Bailey beam support | |
| CN218149160U (en) | Support-free prestressed concrete laminated slab |
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 | ||
| GR01 | Patent grant |