CN105528483B - A kind of inclination truss stability checking method - Google Patents
A kind of inclination truss stability checking method Download PDFInfo
- Publication number
- CN105528483B CN105528483B CN201510885659.4A CN201510885659A CN105528483B CN 105528483 B CN105528483 B CN 105528483B CN 201510885659 A CN201510885659 A CN 201510885659A CN 105528483 B CN105528483 B CN 105528483B
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- Prior art keywords
- truss
- stability
- bar
- inspection
- calculated
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- 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
Abstract
The present invention relates to a kind of inclination truss stability checking methods, comprise the technical steps that：（1）It calculates and tilts Internal Force of Truss；（2）Truss stability inspection is calculated：It is calculated including the inspection of compression bar intensity and strut stability inspection is calculated, while met this two inspection calculation conditions and can determine that the stability for tilting truss.The present invention solves the problems, such as to tilt truss stability checking computations；After the present invention, it can will quickly obtain the stability of inclination truss, save the time, improve efficiency.
Description
【Technical field】
The present invention relates to a kind of inclination truss stability checking methods, belong to construction engineering technical field.
【Background technology】
At present, the shape of many large-scale modernization water conservancy project structures is mostly handstand round platform, in this regard, in casting concrete just
It needs to set up tilt stand.And in the prior art, it there is no the method fast and accurately checked to tilting truss stability.
Therefore, in order to solve the above technical problems, a kind of inclination truss stability checking method it is necessory to provide innovation,
To overcome the defect of the prior art.
【Invention content】
To solve the above problems, it is for inclination angle the purpose of the present invention is to provide one kindInclination truss and truss
Load is the inclination truss stability checking method of evenly load.
To achieve the above object, the technical solution taken of the present invention is：A kind of inclination truss stability checking method, packet
Include following processing step：
（1）It calculates and tilts Internal Force of Truss
Compression bar stressing conditions：
The a length of L's of bar, suffered maximum pressure is0.325qL；
Bar is a length ofL's, suffered maximum pressure is0.976qL；
Bar length is more thanL's, suffered maximum pressure is0.659qL；
Wherein,；
（2）Truss stability inspection is calculated
The inspection of compression bar intensity is calculated
；
；
；
I.e.：；
Strut stability inspection is calculated
；
；
；
；
It willIn、、The stability that can be examined tilt truss is brought in above-mentioned formula into；
Meet simultaneously Two conditions are that can determine that the stability for tilting truss.
Compared with prior art, the present invention has the advantages that：The present invention solvesInclination truss stability
Property checking computations the problem of；After the present invention, it can will quickly obtain the stability of inclination truss, save the time, improve efficiency.
【Description of the drawings】
Fig. 1 is to tilt truss schematic diagram.
【Specific embodiment】
It please refers to shown in Figure of description 1, the present invention is a kind of inclination truss stability checking method, mainly for inclining
Angle isInclination truss and truss load be evenly load, include the following steps：
（1）Tilt Internal Force of Truss
Truss is only by tension, pressure, and since pulling force suffered by this quasi-truss is minimum, pressure is relatively large, Gu it only need to be to being pressurized
Rod piece carries out inspection calculation, and compression bar stressing conditions are given below：
The a length of L's of bar, suffered maximum pressure is0.325qL；
Bar is a length ofL's, suffered maximum pressure is0.976qL；
Bar length is more thanL's, suffered maximum pressure is0.659qL；
；
；
（2）Truss stability inspection is calculated
The inspection of compression bar intensity is calculated
；
；
；
I.e.：；
Strut stability inspection is calculated
；
；
；
（Different bar length correspondences are different, consulting construction reckoner can obtain）；
It willIn、、The stability that can be examined tilt truss is brought in above-mentioned formula into；
Meet simultaneously Two conditions are that can determine that the stability for tilting truss.
The inclination truss stability checking method of the present invention solves and there is no inclination truss stability computational methods at present
Problem；Exist suitable for angle of inclinationNeighbouring inclination truss uses；And it is simple and reliable convenient, it should by practical engineering application
Computational methods are accurate, efficient, filled up the blank of the domestic project.
Above specific embodiment is only the preferred embodiment of this creation, all in this wound not to limit this creation
Any modification, equivalent substitution, improvement and etc. done within the spirit and principle of work, should be included in this creation protection domain it
It is interior.
Claims (1)
1. a kind of inclination truss stability checking method, it is characterised in that：It comprises the technical steps that：
Include the following steps：
(1) Internal Force of Truss is tilted
Truss tension, pressure, since pulling force suffered by this quasi-truss is minimum, pressure is relatively large, Gu only need to compression member into
Row inspection is calculated, and compression bar stressing conditions are given below：
The a length of L's of bar, suffered maximum pressure is N1=0.325qL；
Bar is a length of, suffered maximum pressure is N2=0.976qL；
Bar length is more than, suffered maximum pressure is N3=0.659qL；
L-- is horizontal and vertical bar grows (m)；
Q-- acts on the evenly load KN/m on truss；
(2) truss stability inspection is calculated
1. the inspection of compression bar intensity is calculated
N ＜ [N]；
The maximum pressure that N-- rod pieces are subject to；
[N] -- rod piece bears pressure design value；
I.e.：Nmax=N2＜ [N]；
2. strut stability inspection is calculated
[σ] -- rod piece allows compression strength；
The cross-sectional area of A-- rod pieces；
-- (different bar length correspondences are different for pressure bar stabilization coefficient)；
By the N in (1)1、N2、N3The stability that can be examined tilt truss is brought in above-mentioned formula into；
It is that can determine that the stability for tilting truss to meet 1. 2. two conditions simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885659.4A CN105528483B (en) | 2015-12-07 | 2015-12-07 | A kind of inclination truss stability checking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885659.4A CN105528483B (en) | 2015-12-07 | 2015-12-07 | A kind of inclination truss stability checking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105528483A CN105528483A (en) | 2016-04-27 |
| CN105528483B true CN105528483B (en) | 2018-07-06 |
Family
ID=55770705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510885659.4A Expired - Fee Related CN105528483B (en) | 2015-12-07 | 2015-12-07 | A kind of inclination truss stability checking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105528483B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107391811A (en) * | 2017-06-30 | 2017-11-24 | 北方工业大学 | Steel truss bridge member checking method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550769A (en) * | 2009-03-03 | 2009-10-07 | 中国水利水电第七工程局有限公司 | Movable trestle |
| CN102364012A (en) * | 2011-05-26 | 2012-02-29 | 浙江精工钢结构有限公司 | Method for expanding existing large-span truss |
| CN103914596A (en) * | 2014-04-02 | 2014-07-09 | 长安大学 | Method for determining weak rods in truss structures of hoisting and conveying machinery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070056240A1 (en) * | 2005-09-15 | 2007-03-15 | Lakdas Nanayakkara | Press-formable light-gauge truss framing element |
-
2015
- 2015-12-07 CN CN201510885659.4A patent/CN105528483B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550769A (en) * | 2009-03-03 | 2009-10-07 | 中国水利水电第七工程局有限公司 | Movable trestle |
| CN102364012A (en) * | 2011-05-26 | 2012-02-29 | 浙江精工钢结构有限公司 | Method for expanding existing large-span truss |
| CN103914596A (en) * | 2014-04-02 | 2014-07-09 | 长安大学 | Method for determining weak rods in truss structures of hoisting and conveying machinery |
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| Publication number | Publication date |
|---|---|
| CN105528483A (en) | 2016-04-27 |
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Granted publication date: 20180706 Termination date: 20181207 |