CN102864875B - A font roof truss reinforcing pull rod structural system and construction method thereof - Google Patents

A font roof truss reinforcing pull rod structural system and construction method thereof Download PDF

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Publication number
CN102864875B
CN102864875B CN201210385477.7A CN201210385477A CN102864875B CN 102864875 B CN102864875 B CN 102864875B CN 201210385477 A CN201210385477 A CN 201210385477A CN 102864875 B CN102864875 B CN 102864875B
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China
Prior art keywords
roof truss
steel
pull rod
reinforcing pull
bearing
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CN201210385477.7A
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Chinese (zh)
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CN102864875A (en
Inventor
董有
韩兮
瞿翔
杨健
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北京筑福国际工程技术有限责任公司
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Priority to CN201210385477.7A priority Critical patent/CN102864875B/en
Publication of CN102864875A publication Critical patent/CN102864875A/en
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Publication of CN102864875B publication Critical patent/CN102864875B/en

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Abstract

The present invention relates to a kind of A font roof truss reinforcing pull rod structural system and construction method thereof, belong to Optimal Structure Designing field, be suitable to " flat-changed-into-sloping " application of old house.Wherein, A font roof truss is steel roof truss, and including square steel beam, cross-brace and bearing, bearing prescription girder steel both sides are respectively welded junction steel plate, be respectively welded stiffened steel plates in junction steel plate and bearing both sides, stiffened steel plates respectively with described square steel beam, junction steel plate and bearing vertical welding;Respectively it is welded with a reinforcing pull rod on the junction steel plate at A font roof truss two ends, between two reinforcing pull rods, uses flower basket bolt to connect.Structural system and the method for the present invention improve roof truss stability by arranging reinforcing pull rod bottom A font roof truss, absorb the advantage that traditional method A font roof truss steel using amount is few, add the stability in the large of steelframe, its economical rationality, safe and reliable, have broad application prospects.

Description

A font roof truss reinforcing pull rod structural system and construction method thereof
Technical field
The present invention relates to a kind of roof truss structure system, draw particularly to a kind of A font roof truss steel Bar structural system and construction method thereof, belong to Optimal Structure Designing field.
Background technology
The altering flat ground into slope project of multi-storey building is transformed Beijing and is started from 2002, the most 10 years. For the actual embodiment of specification, within 2006, issue " Beijing's multi-storey building flat-changed-into-sloping work Journey structure technology implements outline " and " Beijing's flat-changed-into-sloping Architectural Construction is with reference to atlas (trying) " Two files.Considering according to practical experience, A font roof truss has steel using amount relatively because of it Few, can be assembled in factory, the lightweight vertical transport of single roof truss is easy, the feature that wet trade is few, Practical Project is applied more.But this roof truss has again the shortcoming of poor stability simultaneously, for across Spending bigger roof truss, the horizontal girder steel of roof truss can not meet requirement.
Summary of the invention
The present invention is for overcoming above-mentioned deficiency, it is provided that a kind of A font roof truss reinforcing pull rod structure System and construction method thereof, preferably to solve A font roof truss stability problem, be a kind of knot Structure is simple, economical rationality, actually active optimizing design scheme.It is by original A Improved on the basis of font roof truss, increased by one in the bottom, direction of horizontal one plane of girder steel Individual reinforcing pull rod, thus improve stability and the bending rigidity of roof truss.
To achieve these goals, this invention takes following technical scheme:
A kind of A font roof truss reinforcing pull rod structural system, it is characterised in that: described A font room Frame is steel roof truss, including the angularly disposed square steel beam in both sides, the middle cross-brace arranged and The bearing arranged below square steel beam end, described bearing prescription girder steel both sides are respectively welded connection Steel plate, is respectively welded stiffened steel plates in junction steel plate and bearing both sides, and described stiffened steel plates divides Not with described square steel beam, junction steel plate and bearing vertical welding;The company at A font roof truss two ends Connect and on steel plate, be respectively welded with a reinforcing pull rod, between two reinforcing pull rods, use flower basket bolt to connect.
Described stiffened steel plates a size of long × width x thickness=60mm × 40mm × 6mm.
Described reinforcing pull rod is the HRB335 reinforcing bar of diameter 20mm.
Weld seam between described junction steel plate and square steel beam is the twin fillet wolt of 6mm.
Weld seam between described reinforcing pull rod and junction steel plate is the twin fillet wolt of 6mm.
Described flower basket bolt uses M22 type bolt.
M20 pre-embedded bolt is used to be connected between described bearing and the sleeping beam of its underpart.
The concrete construction method of above-mentioned A font roof truss is:
When A font roof truss arranged by roofing, first, by propping up of arranging below square steel beam end Seat pre-embedded bolt is connected with Wo Liang;Secondly, the square steel beam both sides at bearing are respectively welded even Connect steel plate;Again, stiffened steel plates is welded at junction steel plate with bearing both sides so that stiffened steel plates Respectively with square steel beam, junction steel plate and bearing vertical welding;Then, at A font roof truss A piece reinforcing pull rod of each welding on the junction steel plate at two ends, uses flower basket bolt between two reinforcing pull rods Connect;After welding, flower basket bolt is tightened.
Beneficial effect: use the above-mentioned optimization design of the present invention, former water-proof heat-insulation layer is destroyed pole Few.Especially for the span steel roof truss more than 15m, it is possible to ensure the whole of every Pin steel roof truss Body stability.All in all, the method economical and effective, have broad application prospects.
Accompanying drawing explanation
Fig. 1 is A font roof truss overall diagram of the present invention;
Fig. 2 is A connection detail in Fig. 1;
Wherein: 1, reinforcing pull rod 2, junction steel plate 3, stiffened steel plates 4, pre-embedded bolt
5, angle welding 6, flower basket bolt
Detailed description of the invention
As shown in Fig. 1~2, the detailed description of the invention of the present invention is as follows:
A kind of A font roof truss reinforcing pull rod structural system, described A font roof truss is steel roof truss, Including under square steel beam, the middle cross-brace arranged and square steel beam end that both sides are angularly disposed The bearing that side is arranged, bearing prescription girder steel both sides are respectively welded junction steel plate 2, are connecting steel Plate 2 and bearing both sides are respectively welded the stiffened steel plates 3 of 60mm × 40mm × 6mm, put more energy into Steel plate 3 respectively with square steel beam, junction steel plate 2 and bearing vertical welding;A font roof truss two Respectively it is welded with a reinforcing pull rod 1 on the junction steel plate 2 of end, uses between two reinforcing pull rods 1 M22 type flower basket bolt 6 connects.
Concrete construction method is:
(1) when A font roof truss arranged by roofing, beam end bearing M20 is pre-buried for square steel Bolt 4 is connected with Wo Liang;
(2) the square steel beam both sides at bearing use site welding two pieces of junction steel plates 2 of welding, Weld seam is the twin fillet wolt of 6mm.
(3) stiffened steel plates 3, stiffened steel plates 3 chi are welded with bearing both sides at junction steel plate 2 Very little 60mm × 40mm × the 6mm that takes, stiffened steel plates 3 respectively with square steel beam, junction steel plate 2 And bearing vertical welding.
(4) on two ends junction steel plate 2, use site welding welding piece reinforcing pull rod 1 of each weldering, Reinforcing pull rod 1 uses the HRB335 reinforcing bar of a diameter of 20mm, uses between two reinforcing pull rods 1 M22 flower basket bolt 6 connects, and weld seam is the twin fillet wolt 5 of 6mm.After welding, Flower basket bolt 6 is tightened.
Being above the exemplary embodiments of the present invention, the enforcement of the present invention is not limited to this.

Claims (6)

1. an A font roof truss reinforcing pull rod structural system, it is characterised in that: described A font roof truss is steel room Frame, sets including below square steel beam, the middle cross-brace arranged and square steel beam end that both sides are angularly disposed The bearing put, described bearing prescription girder steel both sides are respectively welded junction steel plate (2), in junction steel plate (2) Be respectively welded stiffened steel plates (3) with bearing both sides, described stiffened steel plates (3) respectively with described square steel beam, Junction steel plate (2) and bearing vertical welding;The upper each welding of the junction steel plate (2) at A font roof truss two ends There is a reinforcing pull rod (1), between two reinforcing pull rods (1), use flower basket bolt (6) to connect;Described steel Twin fillet wolt (5) is used to be connected between pull bar (1) with junction steel plate (2);Described junction steel plate (2) It is connected with using twin fillet wolt (5) between square steel beam;The Size of welds of described twin fillet wolt (5) For 6mm.
A font roof truss reinforcing pull rod structural system the most according to claim 1, it is characterised in that: described The size of stiffened steel plates (3) be: length × width x thickness=60mm × 40mm × 6mm.
A font roof truss reinforcing pull rod structural system the most according to claim 1, it is characterised in that: described The HRB335 reinforcing bar that reinforcing pull rod (1) is diameter 20mm.
A font roof truss reinforcing pull rod structural system the most according to claim 1, it is characterised in that: described Flower basket bolt (6) use M22 type bolt.
A font roof truss reinforcing pull rod structural system the most according to claim 1, it is characterised in that: described Bearing and the sleeping beam of its underpart between use M20 pre-embedded bolt (4) be connected.
6. executing according to A font roof truss reinforcing pull rod structural system described in any claim in claim 1-5 Work method, it is characterised in that: when A font roof truss arranged by roofing, first, set below square steel beam end The bearing pre-embedded bolt (4) put is connected with Wo Liang;Secondly, the square steel beam both sides at bearing are respectively welded Junction steel plate (2);Again, stiffened steel plates (3) is welded with bearing both sides at junction steel plate (2) so that add Strength steel plate (3) respectively with square steel beam, junction steel plate (2) and bearing vertical welding;Then, at A word A piece reinforcing pull rod (1) of each welding on the junction steel plate at type roof truss two ends, uses flower between two reinforcing pull rods (1) Basket bolt (6) connects;After welding, flower basket bolt (6) is tightened.
CN201210385477.7A 2012-10-11 2012-10-11 A font roof truss reinforcing pull rod structural system and construction method thereof CN102864875B (en)

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CN201210385477.7A CN102864875B (en) 2012-10-11 2012-10-11 A font roof truss reinforcing pull rod structural system and construction method thereof

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Application Number Priority Date Filing Date Title
CN201210385477.7A CN102864875B (en) 2012-10-11 2012-10-11 A font roof truss reinforcing pull rod structural system and construction method thereof

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
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CN103233582B (en) * 2013-04-25 2015-02-11 东北林业大学 Method for achieving prestressed cylindrical cable bar latticed shell structure forming by aid of length-adjustable press rod
CN103276809B (en) * 2013-05-29 2016-06-22 北京工业大学 A kind of assembled many Tall Steels shaped pile frame-steel plate shear wall structure system
CN103276807B (en) * 2013-06-10 2015-07-15 北京工业大学 Industrialized assembly type special-shaped column steel structure system
CN103806530B (en) * 2014-03-14 2015-11-18 中国建筑第二工程局有限公司 A kind of special-shaped overhanging steel structure and construction method thereof
CN104153589B (en) * 2014-08-27 2016-04-27 中国建筑第二工程局有限公司 A kind of roof system steel truss suspension centre hoisting power detection method
CN106223623B (en) * 2015-06-02 2018-07-13 五冶集团上海有限公司 Steel construction box arched roof truss installation method
CN106592995B (en) * 2016-11-01 2018-10-26 中国建筑第八工程局有限公司 Open the installation method of overarm steel construction stress system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2094372A (en) * 1981-03-11 1982-09-15 British Steel Corp Steel trusses for pitched roof
US4435940A (en) * 1982-05-10 1984-03-13 Angeles Metal Trim Co. Metal building truss
GB2403230B (en) * 2003-06-26 2007-06-13 Harvey Peter Improvements in or relating to a principal roof truss for loft conversion
CN202945819U (en) * 2012-10-11 2013-05-22 北京筑福国际工程技术有限责任公司 A-shaped roof truss steel tie rod structure system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2094372A (en) * 1981-03-11 1982-09-15 British Steel Corp Steel trusses for pitched roof
US4435940A (en) * 1982-05-10 1984-03-13 Angeles Metal Trim Co. Metal building truss
GB2403230B (en) * 2003-06-26 2007-06-13 Harvey Peter Improvements in or relating to a principal roof truss for loft conversion
CN202945819U (en) * 2012-10-11 2013-05-22 北京筑福国际工程技术有限责任公司 A-shaped roof truss steel tie rod structure system

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