CN101294431B - Construction method for steel-concrete composite truss floor - Google Patents
Construction method for steel-concrete composite truss floor Download PDFInfo
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- CN101294431B CN101294431B CN2007100712152A CN200710071215A CN101294431B CN 101294431 B CN101294431 B CN 101294431B CN 2007100712152 A CN2007100712152 A CN 2007100712152A CN 200710071215 A CN200710071215 A CN 200710071215A CN 101294431 B CN101294431 B CN 101294431B
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Abstract
The present invention relates to a construction method of a steel-concrete composite truss floor slab with the advantages of convenient consumption, low consumption cost and good entirety, comprising the steps of: combining the two components of a web member connected with two lower chord members and the two lower chord members to form a V-shaped structure, welding vertical steel segments (51) on horizontal steel segments (52) opened with lateral through-holes to form shear keys (5), vertically and alternately welding the shear keys at the upper end of the web member, passing bolts into the lateral through-holes on the horizontal steel segments of the form shear keys to connect a tool type upper chord member (10) with the horizontal steel segments (52) of the shear keys, transversely spanning pull rods (6) on the V-shaped structure in dismountable manner to form a plurality of reversed triangle-shaped trusses, parallelly and alternately placing the plurality of reversed triangle-shaped trusses on a bearing body using end placement members thereof, laying templates (11) on the tool type upper chord member (10), pouring a reinforced concrete layer (1) on the templates, and removing the tool type upper chord member (10), the pull rods (6) and the templates (11) after the reinforced concrete layer is solidified. The inventive steel-concrete composite truss is suitable for being used as floor slabs or roofs.
Description
Technical field
The present invention relates to the construction method of building flooring or roofing, particularly with truss as the large span flooring of primary structure member or the construction method of roofing.
Background technology
In multilayer and highrise building, floor system has forms such as cast-in-situ steel reinforced concrete beam and slab type, flat, girder steel profiled sheet concrete slab formula and prefabricated reinforced concrete sheet pack be box-like; But along with economy and demands of social development, architectural space develops to the high-adaptability direction of large bay large span, mode of construction develops to the batch production direction, therefore existing floor system more and more can not adapt to requirement, and steel-concrete composite truss floor that large span steel truss and armored concrete slab make up proposes for addressing this problem just.This construction is convenient, and cost is low, work efficiency height, the present rarely seen report of the construction process of the composite truss floor that performance is good.97237882.0 a kind of concrete slab-truss of number Chinese utility model patent, it is said to have and make easily, be suitable for characteristics such as span is big, good endurance, but can not form whole floor structure when forming flooring as splicing prefabricated components because of it, if itself and two upper chords are made as the part of the plate of one as floor plate, then also need to do in addition again the steel bar concrete surface layer thereon, this truss fabrication transportation difficulty deadweight is bigger, it is also convenient inadequately to store transportation, also be uneconomic on the cost, technology itself is imperfection also.
Summary of the invention
It is limited that the present invention will solve floor structure span at present commonly used, cost is higher, problems such as the field operation amount is big, construction method for steel-concrete composite truss floor of the present invention is provided for this reason, this method can be built large span flooring or roofing, has to build conveniently, and cost is low, advantages such as good integrity also have the good characteristics of Anti-Typhoon thermal and insulating performance as roofing.
For addressing the above problem, the technical solution used in the present invention is that two Pin members that web member and lower chord are linked are with its two lower chord and close and constitute end to becoming " ∨ " shape structure, its connection end, outer end hold item fixedly winds up in connection end, the both ends of described two Pin members, its special character is to be coupled to and to form shear connector on the horizontal steel section of offering the side direction through hole and this shear connector longitudinal separation ground weldering is coupled to described web member upper end erectting the weldering of steel section, penetrate the side direction through hole of the horizontal steel section of described shear connector and the tool-type upper chord is coupled to the horizontal steel section of shear connector through nut with bolt, pull bar longitudinal separation ground removably laterally striden is coupled to described " ∨ " structure, constitute end to "
" the shape truss, with some described ends to "
" the shape truss is parallel respectively is held on weight body with its end hold item, lays template on described tool-type upper chord, reinforced concrete floor is watered in the shop on template, and described tool-type upper chord, pull bar and template are removed in the fixed back of this layer of concrete.
Should be at described template second line of a couplet ribs, so that template satisfies requirement of strength.
The present invention can be embedded with cystosepiment at described reinforced concrete floor, reducing cost, weight reduction, and improves the thermal and insulating performance of plate.
Of the present invention pull bar longitudinal separation ground is removably laterally striden is coupled to " ∨ " shape structure and is meant laterally to stride and is coupled between described two tool-type upper chords or the laterally corresponding shear connector.
End of the present invention hold item can be the channel-section steel section.
Described in the present invention the end to "
" the shape truss is parallel respectively is held on weight body with its end hold item, this weight body can be girder or load bearing wall.
The setting steel section of the shear connector among the present invention is embedded in layer of concrete, and the fixed back of layer of concrete is erect the steel section and born the horizontal direction shear stress; Also can be in advance at the bar dowel of erectting perforate plant horizontal direction on the steel section, to improve the vertical anti-performance of lifting of layer of concrete.
When treating that layer of concrete is fixed and having sufficient intensity, remove tool-type upper chord, pull bar and template among the present invention, give over to and reuse.Fixedly wind up in lower chord among the present invention, tool-type upper chord, end, the setting steel section of shear connector and horizontal steel section, pull bar all can adopt angle steel; Web member can adopt its bottom of steel pipe to flatten weldering and be coupled to lower chord, and the horizontal steel section of the described shear connector of weldering connection is flattened in the upper end.
Adopt the lower chord of two angle steel, and become after closing "
" shape, can vertically respectively use thereon "
" shape fastener chucking.
The present invention need not to set up bearing frame owing to adopt detachable tool formula upper chord and supporting template, after reinforced concrete floor fixed back dismounting upper chord and the template "
" space truss of shape winds up as it with reinforced concrete slab, omitted steel and winded up, so rolled steel dosage of the present invention is few, cost is low; Every Pin plane frame of " ∨ " shape structure can be prefabricated in the factory among the present invention, assembled on site one-tenth "
" space truss, therefore have the characteristics that the field operation amount is little, speed of application is fast; Its setting steel section of shear connector among the present invention is used to be embedded in concrete floor, bears flooring horizontal direction shear stress and the vertical anti-power of lifting, so construction back flooring good integrity; Can directly lay secondary joist and do and hang item on lower chord of the present invention, pipeline can be walked in the truss space, saves floor height; Then thermal and insulating performance is good as roofing concrete layer embedded set cystosepiment, and it is lighter to conduct oneself with dignity, and cost is lower.
Description of drawings
Fig. 1 is that the truss two ends among the present invention are held on girder truss upper berth and water steel concrete vertical structure schematic diagram;
Fig. 2 is Fig. 1 cross-sectional configuration schematic diagram;
Fig. 3 is another structural representation of Fig. 1 cross section;
Fig. 4 is Fig. 3 A district enlarged diagram;
Fig. 5 is the oblique elevational schematic view of part-structure of the present invention;
Fig. 6 is the oblique schematic top plan view of part-structure of the present invention.
The specific embodiment
Embodiment one
The steel-concrete composite truss floor construction method, two Pin that web member 9 and lower chord 8 are linked do not have the plane frame of winding up with its two lower chord and close and constitute end to becoming " ∨ " shape structure, 7 its connection end, outer ends hold items 3 fixedly wind up in connection end, the both ends of described two Pin members, be coupled to and form shear connector 5 on the horizontal steel section 52 of offering the side direction through hole and this shear connector longitudinal separation ground weldering is coupled to described web member upper end erectting 51 welderings of steel section, penetrate the side direction through hole of the horizontal steel section of described shear connector and tool-type upper chord 10 is coupled to the horizontal steel section 52 of shear connector through nut with bolt, the plate 12 of being connected and fixed at the horizontal steel section of shear connector 52 two ends is opened the hole on it, between the laterally corresponding horizontal steel section of shear connector through bolt, nut is striden connection pull bar 6, constitute end to
The shape truss, with some ends to
The shape truss is parallel respectively to be held on girder or load bearing wall with its end hold item, on described tool-type upper chord 10, lay template 11 connection ribs 111 below it, reinforcing bar 2 layer of concrete 1 are watered in the shop on template, and this layer of concrete is fixed removes described tool-type upper chord 10, pull bar 6 and template 11 after having sufficient intensity.
Embodiment two
This routine steel-concrete composite truss floor construction method, what be different from example is to be embedded with cystosepiment 4 at reinforcing bar 2 layer of concrete 1, other structure is identical with last example.
Claims (4)
1. construction method for steel-concrete composite truss floor, the two Pin members that web member (9) and lower chord (8) are linked are with its two lower chord and close and constitute end to becoming " ∨ " shape structure, (7) its outer end connection end hold item (3) fixedly winds up in connection end, the both ends of described two Pin members, it is characterized in that being coupled to the horizontal steel section (52) of offering the side direction through hole and going up and form shear connector (5) and this shear connector longitudinal separation ground weldering is coupled to described web member upper end with erectting steel section (51) weldering, penetrate the side direction through hole of the horizontal steel section of described shear connector and tool-type upper chord (10) is coupled to the horizontal steel section (52) of shear connector through nut with bolt, pull bar (6) longitudinal separation ground removably laterally striden is coupled to described " ∨ " shape structure, constitute end to
The shape truss, with some described ends to
The shape truss is parallel respectively to be held on weight body with its end hold item, go up laying template (11) at described tool-type upper chord (10), reinforced concrete floor (1) is watered in the shop on template, and described tool-type upper chord (10), pull bar (6) and template (11) are removed in the fixed back of this layer of concrete.
2. construction method for steel-concrete composite truss floor as claimed in claim 1 is characterized in that being associated with ribs (111) below described template.
3. construction method for steel-concrete composite truss floor as claimed in claim 1 or 2 is characterized in that being embedded with cystosepiment (4) at described reinforced concrete floor.
4. construction method for steel-concrete composite truss floor as claimed in claim 1 or 2 is characterized in that described pull bar (6) longitudinal separation ground is removably laterally striden is coupled to " ∨ " shape structure and is meant laterally to stride and is coupled between two described tool-type upper chords (10) or the laterally corresponding shear connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100712152A CN101294431B (en) | 2007-09-06 | 2007-09-06 | Construction method for steel-concrete composite truss floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100712152A CN101294431B (en) | 2007-09-06 | 2007-09-06 | Construction method for steel-concrete composite truss floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101294431A CN101294431A (en) | 2008-10-29 |
| CN101294431B true CN101294431B (en) | 2011-07-06 |
Family
ID=40064941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100712152A Expired - Fee Related CN101294431B (en) | 2007-09-06 | 2007-09-06 | Construction method for steel-concrete composite truss floor |
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| Country | Link |
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| CN (1) | CN101294431B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018607B (en) * | 2014-05-15 | 2017-04-12 | 昆山生态屋建筑技术有限公司 | Spliced space truss interlayer floor |
| CN105275121B (en) * | 2014-05-28 | 2018-06-19 | 中建五洲工程装备有限公司 | Three layers of T-steel laced beam and preparation method thereof |
| CN109518588A (en) * | 2019-01-14 | 2019-03-26 | 中铁二院工程集团有限责任公司 | A kind of novel plate-purlin bondbeam and its construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2323050Y (en) * | 1997-10-15 | 1999-06-09 | 曹新明 | Space triangular reinforced concrete slab-truss |
| CN1348043A (en) * | 2001-11-24 | 2002-05-08 | 王立久 | Construction process of concrete floor slab with steel wire net |
| CN2617859Y (en) * | 2003-05-14 | 2004-05-26 | 上海市第七建筑有限公司 | Truss supporting template systems |
| CN2890219Y (en) * | 2006-04-03 | 2007-04-18 | 杨峰 | Large span combined truss |
| CN2929025Y (en) * | 2006-07-26 | 2007-08-01 | 杨峰 | Steel truss |
-
2007
- 2007-09-06 CN CN2007100712152A patent/CN101294431B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2323050Y (en) * | 1997-10-15 | 1999-06-09 | 曹新明 | Space triangular reinforced concrete slab-truss |
| CN1348043A (en) * | 2001-11-24 | 2002-05-08 | 王立久 | Construction process of concrete floor slab with steel wire net |
| CN2617859Y (en) * | 2003-05-14 | 2004-05-26 | 上海市第七建筑有限公司 | Truss supporting template systems |
| CN2890219Y (en) * | 2006-04-03 | 2007-04-18 | 杨峰 | Large span combined truss |
| CN2929025Y (en) * | 2006-07-26 | 2007-08-01 | 杨峰 | Steel truss |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-152403A 2001.06.05 |
| JP特开2002-339451A 2002.11.27 |
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| Publication number | Publication date |
|---|---|
| CN101294431A (en) | 2008-10-29 |
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