CN103306428A - Built-in heavy load beam member of novel composite truss - Google Patents
Built-in heavy load beam member of novel composite truss Download PDFInfo
- Publication number
- CN103306428A CN103306428A CN2013102601450A CN201310260145A CN103306428A CN 103306428 A CN103306428 A CN 103306428A CN 2013102601450 A CN2013102601450 A CN 2013102601450A CN 201310260145 A CN201310260145 A CN 201310260145A CN 103306428 A CN103306428 A CN 103306428A
- Authority
- CN
- China
- Prior art keywords
- built
- concrete
- composite truss
- truss
- heavily loaded
- 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
Images
Abstract
The invention belongs to the technical field of engineering structures and particularly relates to a built-in heavy load beam member of a novel composite truss. Two or more parallel steel pipes are adopted as chord pipes in the structure, the chord pipes are connected through a plurality of diagonal web members and filled with self-compacting concrete to form the steel pipe concrete composite truss; stirrups and longitudinal bars are bound outside the steel pipe concrete composite truss and peripheral concrete is poured at the stirrups and longitudinal bars to form the built-in heavy load beam member of the composite truss. According to the structure, the problems of bad section bending rigidity and bad bending and shearing resistance of middle beam members of a high-rise building conversion layer and a metro platform are solved. In addition, the prefabricated steel pipe concrete composite truss can serve as a stiff skeleton to bear an initial construction load for the convenience of construction.
Description
Technical field
The invention belongs to the engineering structures technical field, particularly the built-in heavily loaded beam of a kind of Novel combined truss.
Background technology
Beam in high-rise building transfer floor and subway platform needs the larger cross-section bending rigidity, bending resistance and shear-carrying capacity are resisted larger vertical load, if enlarge simply the sectional dimension of reinforced concrete member, affect usage space, concrete gravity might be with the beam conquassation, and simultaneously mass concrete construction problem is more outstanding.
Summary of the invention
The invention provides the built-in heavily loaded beam of a kind of Novel combined truss, solved that heavily loaded beam needs the larger cross-section bending rigidity in high-rise building transfer floor and the subway platform, and the problem of larger bending resistance and shear-carrying capacity.
The technical solution used in the present invention is:
Two or many parallel steel tube are as the string pipe in this structure, between connect by many diagonal web members, and in each string pipe, fill self-compacting concrete, consist of the concrete filled steel tube composite roof truss; Colligation stirrup and vertical muscle outside the concrete filled steel tube composite roof truss, and cast peripheral concrete consist of the built-in heavily loaded beam of composite roof truss.
The quantity of described string pipe is two, three or four.
The structure of described two string pipes only connects by web member between the string pipe; Three and three are with the tubular structure that winds up, between the string pipe by web member be connected straight connecting rod and connect.
Described string pipe adopts clod wash, welding or jointless structure steel pipe.
Beneficial effect of the present invention is:
This structure takes full advantage of the clear and definite characteristics of composite roof truss power transmission, brings into play outside concrete and girder-embedded combination advantage, realizes higher stiffness of structural member and bearing capacity under the prerequisite of control member sectional dimension.In the simple bending section of beam, the composite roof truss top-bottom chord serves as respectively pull bar and depression bar, can effectively limit outside distress in concrete and carry out, and improves bending rigidity and the anti-bending bearing capacity of beam; In the curved scissors district of beam, the composite roof truss diagonal web member serves as diagonal member and depression bar, transmits most of shearing, thereby has reduced curved scissors district concrete shear stress level, has limited diagonal crack and has carried out and improved the beam shear-carrying capacity.The Prefabricated concrete-filled steel tube composite roof truss also can be used as stiff skeleton and bears initial stage working load, constructability in addition.Compare with the concrete filled steel tube flitch-trussed beam, external wrapping concrete can improve its bending rigidity and bearing capacity, improves resistance to overturning, and its fire resistance and corrosion resistance are good simultaneously, reduces relevant maintenance cost.The rigidity of such beam and bearing capacity are greater than the simple superposition of concrete filled steel tube composite roof truss and peripheral steel concrete part, can be widely used in high-rise building transfer floor and subway platform.
Description of drawings
Fig. 1 and 4 is respectively beam plan view and the A-A sectional drawing of built-in two limb steel pipe Combined concrete truss.
Fig. 2 and 5 is respectively beam plan view and the A-A sectional drawing of built-in three-limb steel pipe Combined concrete truss.
Fig. 3 and 6 is respectively beam plan view and the A-A sectional drawing of built-in four limbs concrete filled steel tube composite roof truss.
Fig. 7 is the beam schematic three dimensional views of built-in three-limb steel pipe Combined concrete truss.
Number in the figure:
The 1-peripheral concrete, the 2-stirrup, 3-indulges muscle, the steel pipe in the 4-upper chord, the concrete in the 5-upper chord, the steel pipe in the 6-lower chord, the concrete in the 7-lower chord, 8-diagonal web member, the horizontal straight connecting rod of 9-.
The specific embodiment
The invention provides the built-in heavily loaded beam of a kind of Novel combined truss, the present invention will be further described below in conjunction with the drawings and specific embodiments.
The present invention adopts two limbs, three limbs or four limbs concrete filled steel tube composite roof truss structure usually.
Two limb structures as shown in Figure 1 and Figure 4, adopt two parallel clod washes, welding or jointless structure with steel pipe as the string pipe in this structure, be respectively steel pipe 4 in the upper chord and the steel pipe 6 in the lower chord, between connect by many diagonal web members 8.Steel pipe 4 in upper chord and the steel pipe in the lower chord 5 be interior fills respectively self-compacting concrete (being concrete 5 in the upper chord and the concrete seven in the lower chord), consists of the concrete filled steel tube composite roof truss; Colligation stirrup 2 and vertical muscle 4 outside the concrete filled steel tube composite roof truss, and formwork cast peripheral concrete 1 consist of the built-in heavily loaded beam of composite roof truss.
Three limb structures such as Fig. 2 and shown in Figure 4, three-dimensional structure as shown in Figure 7.Different from two limb structures is, its three limb is comprised of two upper chords and a lower chord, connects by horizontal straight connecting rod 9 between two upper chords, connects by diagonal web member 8 respectively between two upper chords and the lower chord.
Four limbs structure such as Fig. 3 and shown in Figure 6 are comprised of two upper chords and two lower chords, connect by horizontal straight connecting rod 9 between two upper chords (lower chord), connect by diagonal web member 8 respectively between upper chord and the lower chord.
Claims (4)
1. the built-in heavily loaded beam of Novel combined truss is characterized in that, two or many parallel steel tube are as the string pipe in this structure, between connect by many diagonal web members, and in each string pipe, fill self-compacting concrete, consist of the concrete filled steel tube composite roof truss; Colligation stirrup and vertical muscle outside the concrete filled steel tube composite roof truss, and cast peripheral concrete consist of the built-in heavily loaded beam of composite roof truss.
2. the built-in heavily loaded beam of Novel combined truss according to claim 1 is characterized in that, the quantity of described string pipe is two, three or four.
3. the built-in heavily loaded beam of Novel combined truss according to claim 1 is characterized in that the structure of described two string pipes only connects by web member between the string pipe; Three and three are with the tubular structure that winds up, between the string pipe by web member be connected straight connecting rod and connect.
4. the built-in heavily loaded beam of Novel combined truss according to claim 1 is characterized in that, described string pipe adopts clod wash, welding or jointless structure steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310260145.0A CN103306428B (en) | 2013-06-26 | 2013-06-26 | Built-in heavy load beam member of novel composite truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310260145.0A CN103306428B (en) | 2013-06-26 | 2013-06-26 | Built-in heavy load beam member of novel composite truss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306428A true CN103306428A (en) | 2013-09-18 |
| CN103306428B CN103306428B (en) | 2015-06-10 |
Family
ID=49132111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310260145.0A Active CN103306428B (en) | 2013-06-26 | 2013-06-26 | Built-in heavy load beam member of novel composite truss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103306428B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711255A (en) * | 2013-12-31 | 2014-04-09 | 宝钢建筑系统集成有限公司 | Truss concrete superposed beam |
| CN109083023A (en) * | 2018-09-06 | 2018-12-25 | 重庆交通大学 | Using the continuous rigid frame bridge and its construction method of stiff skeleton |
| CN110241974A (en) * | 2019-04-29 | 2019-09-17 | 深圳市建筑设计研究总院有限公司 | Complete bolted truss-like girder with rolled steel section en cased in concrete and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05302398A (en) * | 1991-07-03 | 1993-11-16 | Oriental Kensetsu Kk | Precast concrete beam |
| JPH09144206A (en) * | 1995-11-21 | 1997-06-03 | Shimizu Corp | Beam |
| JP2000170323A (en) * | 1998-12-07 | 2000-06-20 | Kajima Corp | Truss and brace structure material |
| CN201158899Y (en) * | 2008-03-04 | 2008-12-03 | 广西大学 | Steel truss steel bone concrete beam |
| CN202298891U (en) * | 2011-08-12 | 2012-07-04 | 清华大学 | Large hidden grid type or truss type mixed component |
| CN203514638U (en) * | 2013-06-26 | 2014-04-02 | 清华大学 | Built-in heavy-load beam member of novel composite truss |
-
2013
- 2013-06-26 CN CN201310260145.0A patent/CN103306428B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05302398A (en) * | 1991-07-03 | 1993-11-16 | Oriental Kensetsu Kk | Precast concrete beam |
| JPH09144206A (en) * | 1995-11-21 | 1997-06-03 | Shimizu Corp | Beam |
| JP2000170323A (en) * | 1998-12-07 | 2000-06-20 | Kajima Corp | Truss and brace structure material |
| CN201158899Y (en) * | 2008-03-04 | 2008-12-03 | 广西大学 | Steel truss steel bone concrete beam |
| CN202298891U (en) * | 2011-08-12 | 2012-07-04 | 清华大学 | Large hidden grid type or truss type mixed component |
| CN203514638U (en) * | 2013-06-26 | 2014-04-02 | 清华大学 | Built-in heavy-load beam member of novel composite truss |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711255A (en) * | 2013-12-31 | 2014-04-09 | 宝钢建筑系统集成有限公司 | Truss concrete superposed beam |
| CN109083023A (en) * | 2018-09-06 | 2018-12-25 | 重庆交通大学 | Using the continuous rigid frame bridge and its construction method of stiff skeleton |
| CN110241974A (en) * | 2019-04-29 | 2019-09-17 | 深圳市建筑设计研究总院有限公司 | Complete bolted truss-like girder with rolled steel section en cased in concrete and construction method |
| CN110241974B (en) * | 2019-04-29 | 2023-11-17 | 深圳市建筑设计研究总院有限公司 | Full-bolt-connection truss type steel reinforced concrete beam and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103306428B (en) | 2015-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101581115B (en) | Mixed steel-concrete composite frame structure | |
| CN202831402U (en) | Concrete filled steel tubular column with inner-connected circular pipe and outer-sleeved concrete filled steel tube | |
| CN102535328B (en) | In-pipe prestressed steel-pipe truss composite simply-supported beam structure | |
| CN103835435B (en) | A kind of U-shaped steel-concrete composite beam | |
| CN101220580A (en) | Portrait multi-point continuously dragging construction method for trussed steel beam | |
| CN101845871A (en) | Cast-in-place steel-concrete composite beam | |
| CN103967206A (en) | Combined lattice type hollow component | |
| CN203891340U (en) | Combined lattice type hollow member | |
| CN102979179A (en) | Steel pipe-reinforced concrete laminated framework structural system | |
| CN203514638U (en) | Built-in heavy-load beam member of novel composite truss | |
| CN103306428B (en) | Built-in heavy load beam member of novel composite truss | |
| CN204356996U (en) | The U-shaped beam of prefabricated reinforced concrete with horizontal steel diaphragm | |
| CN101122151B (en) | Bidirectional single-row reinforcement shear wall structure and manufacturing method thereof | |
| CN102505849B (en) | Construction method of membrane shell ribbed floor formwork supporting system | |
| CN103898834A (en) | Concrete-filled steel tube composite beam and trussed cable tower cable-stayed bridge and construction method thereof | |
| WO2008122242A1 (en) | Spherical reticulated shell assembled structure | |
| CN209637113U (en) | A kind of band lacing wire concrete-filled double skin steel tube pours building body | |
| CN203716407U (en) | U-shaped steel-concrete combination beam | |
| CN113718623A (en) | Hollow steel pipe concrete arch bridge structure | |
| CN202466391U (en) | Combined simple strut beam structure for inner prestressed steel pipe truss | |
| CN208152311U (en) | A kind of two-sided folded type steel shear wall | |
| CN102561508B (en) | Steel tube concrete poling type truss mixed structure for high-rise and super high-rise buildings | |
| CN203669204U (en) | Trussed steel reinforced concrete coupling beam | |
| CN110306673B (en) | Multi-layer large-space building structure | |
| CN210917010U (en) | Tube-in-tube bridge tower of space mixed cable net suspension bridge with parabolic arched tower cap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |