CN2434357Y - Prestressed large span solid door type steel frame - Google Patents
Prestressed large span solid door type steel frame Download PDFInfo
- Publication number
- CN2434357Y CN2434357Y CN 00243193 CN00243193U CN2434357Y CN 2434357 Y CN2434357 Y CN 2434357Y CN 00243193 CN00243193 CN 00243193 CN 00243193 U CN00243193 U CN 00243193U CN 2434357 Y CN2434357 Y CN 2434357Y
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- steel
- presstressed reinforcing
- section
- reinforcing steel
- prestressed
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Abstract
The utility model discloses a prestressed large span solid door type steel frame, which is composed of an H-shaped steel beam and a steel upright post. The end of each section of members from which the steel beam is formed is fixedly provided with a flanged disc, and the members are provided with high-strength bolts which are connected with the members together, a through full span full-length prestressed tendon, a prestressed tendon in the vertical direction of the steel upright post, and corresponding anchors, steel backing plates and nuts. The prestressed large span solid door type steel frame can be formed by stretching and prestressing application to the shoulders of the door type steel frame after prestressing application, splicing and steel beams closure to each section of the members. The utility model can be used for large indoor gymnasiums, exhibition halls, hangars, etc.
Description
The utility model relates to a kind of steel work of construction work, especially is applicable to the prestressed large-span solid portal steel frame of large span light section steel structure engineering.
At present, known large-span steel engineering is to be welded into portal frame with welded H type i iron, and girder steel and steel column all adopt variable cross-section, to reduce the cross section from heavy load, thereby reach the purpose of saving steel using amount, Roof system also adopts the way of purlin upper berth profiled sheet as far as possible, with weight reduction, general like this light section steel structure can accomplish that span is bigger, steel using amount is economized, and generally speaking, its post is apart from accomplishing 6-8m, the span maximum also can reach 72m, and steel using amount is at 70kg/m
2Below, has better economic, ripe, construction technology efficiently, but span and post be apart from strengthening again, and not only form of structure becomes unreasonable, the cross section is also bigger, steel using amount also increases suddenly, can't satisfy growing market to the requirement apart from, low steel using amount of large span, huge pillar, for than large span, all adopt rack or suspended-cable structure both at home and abroad, and this structure obviously exists design, making, construction, difficulty is big, long in time limit, cost is high problem.
The purpose of this utility model is exactly to solve the above-mentioned problem that steel work exists of striding greatly, a kind of new structural shape that satisfies market demand is provided, a kind of prestressed large-span solid portal steel frame promptly is provided, make it to satisfy large span, the requirement of huge pillar distance, and the saving steel, and design, making, mounting technique maturation, short construction period.
6. the purpose of this utility model is achieved in that a kind of prestressed large-span solid portal steel frame, form by H section steel beam and steel post, the girder steel two ends are installed in the upper end of two steel posts and are a shape, it is characterized in that: described H section steel beam is made of several sections prestressing force H Steel section members, its every section prestressing force H Steel section member end sets firmly flange, and the corresponding high-strength bolt that connects each prestressing force H Steel section member that is provided with; Be provided with the elongated presstressed reinforcing steel that perforation is striden entirely in the side of H section steel beam horizontal direction, the biased outward vertical direction is provided with presstressed reinforcing steel in steel post top, and the end of elongated presstressed reinforcing steel and presstressed reinforcing steel is the screw end bar; On the edge of a wing of H section steel beam and steel post, web, be provided with fixedly presstressed reinforcing steel and anchor, the billet of elongated presstressed reinforcing steel and the nut that matches with the screw end bar with above-mentioned screw end bar corresponding site.
Owing to adopting technique scheme that girder steel is applied the prestressing force portal frame that prestressing force constitutes, the utlity model has following beneficial effect: design and produce, building operations is all simpler, short construction period, and component internal force value and deformation of member value are all reduced a lot, after construction is finished, can offset most of external load function, stride the purpose that subtracts steel, this new form of structure thereby reach large span, small bore and then reach to increase, span can increase to 150m, and post is apart from reaching 12m.Compare with originally applying prestressed portal frame, under identical span, its steel using amount can be saved more than 35%, and under the situation of identical steel using amount, span can increase more than 30%.
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is done to describe in further detail.
Fig. 1 is solid portal steel frame assembly unit of the utility model Large Span Prestressed and prestressing force lacing wire position general structure schematic diagram;
Fig. 2 is Fig. 1 corner structure enlarged diagram;
Fig. 3 is the syndeton enlarged diagram of Fig. 2 presstressed reinforcing steel end screw end bar, billet, anchor and nut;
Fig. 4 is with adjacent two sections structural representations that presstressed reinforcing steel links together with screw socket.
The number in the figure title:
1 H section steel beam, 1 ' H shaped steel column, 2 flange
3 elongated presstressed reinforcing steel 3 ' presstressed reinforcing steel 4 high-strength bolts
5 billets, 6 nuts, 7 screw end bars
8 anchors, 9 screw sockets, 10 pedestals
As shown in Figure 1, provided the general structure of prestressed large-span solid portal steel frame, comprise H section steel beam 1 and steel post 1 ', described H section steel beam 1 is made up of several sections H shaped steel prestressed members, its every section component ends sets firmly flange 2, and the corresponding high-strength bolt 4 that connects each section prestressed member that is provided with, be provided with the elongated presstressed reinforcing steel 3 that the perforation more than one or is striden entirely in the side of H section steel beam 1, provide one among the figure, the horizontal perforation of end to end that is positioned at this girder steel 1 is striden entirely, H section steel beam 1 is then presented and is scratched shape, the formation of elongated presstressed reinforcing steel 3 can select for use the cold drawn II level of moderate strength and III grade reinforcing steel to make, and also can select for use steel wire cable to make, and its maximum gauge is 40mm, its intensity is 900/1100Mpa, as adopt reinforcement fabrication, because the length of material has certain restriction, need spreading, thereby elongated presstressed reinforcing steel 3 is made up of several sections presstressed reinforcing steels, connects (as shown in Figure 4) in the threaded end of adjacent two sections presstressed reinforcing steels with screw socket 9.
As shown in Figures 2 and 3, be provided with presstressed reinforcing steel 3 ' in H shaped steel column 1 ' top biased outward portion vertical direction, this presstressed reinforcing steel 3 ' and the end that connects the elongated presstressed reinforcing steel 3 of striding entirely are screw end bar 7, are provided with fixedly presstressed reinforcing steel 3 ' and the anchor 8 of elongated presstressed reinforcing steel 3, the nut 6 that billet 5 reaches and screw end bar 7 matches at the corresponding site of wing plate, web and the screw end bar 7 of H section steel beam 1 and H shaped steel column 1 '.
More than each member just formed the Large Span Prestressed solid portal steel frame of a lightweight steel construction, its building method may further comprise the steps: at first, in member processing factory Manufactured member is applied prestressing force, at every section prestressed member frange plate forming H section steel beam 1, the web root, in this member tensile region, make the preceding first pressurized of member tension, promptly by the stretch-draw high tensile reinforcement, this is end reinforced to be screw end bar 7, process or weld one section lead screw with rolling process, utilization is at frange plate, the set anchor 8 in web relevant position, billet 5,6 pairs of members of screw end bar 7 and nut apply prestressing force, also available special jack tension, added prestressing force size are determined by computational analysis by the situation of external applied load according to member ownership, make prestressing force balance out the internal stress that external applied load produces just in member.Second, during building operations, on inside portion, steel post 1 ' the upper end pedestal 10 that fabrication and installation are good, by prestressed member end flange dish 2 corresponding and high-strength bolt 4 one section one section ground symmetry of each section prestressed member is extended to the span centre splicing with pedestal 10, each section all was fastened on the last period that has installed, progressively formed a pair of semi girder that stretches out to the centre from two ends.The 3rd, treat that above-mentioned semi girder further is installed on after span centre closes up, after passing through screw end bar 7, billet 5 and the nut 6 fastening stretch-draw of its end with elongated presstressed reinforcing steel 3 again, utilize the supporting role of 6 pairs of screw end bars 7 of nut, be anchored on the billet 5 connecting the elongated presstressed reinforcing steel of striding entirely, thereby form continuous steel beam 1.The 4th, the presstressed reinforcing steel 3 ' and screw end bar 7, billet 5, nut 6 and 8 pairs of door frame shoulders of the anchor advancing side that utilize steel post 1 ' to go up set vertical direction apply prestressing force, and this steel post 1 ' just constitutes a prestressed large-span solid portal steel frame with its girder steel that is supported 1.Above-mentioned stretching force when applying prestressing force is not more than 600KN.
Referring to Fig. 1, the post of prestressed large-span solid portal steel frame of the present utility model is apart from reaching 12m, and the span maximum can reach about 150m, can be used as large-scale indoor sport shop, exhibition hall and hangar etc.
Claims (5)
1. prestressed large-span solid portal steel frame, form by H section steel beam and steel post, the girder steel two ends are installed in the upper end of two steel posts and are a shape, it is characterized in that: described H section steel beam is made of several sections prestressing force H Steel section members, its every section prestressing force H Steel section member end sets firmly flange, and the corresponding high-strength bolt that connects each prestressing force H Steel section member that is provided with; Be provided with the elongated presstressed reinforcing steel that perforation is striden entirely in the side of H section steel beam horizontal direction, the biased outward vertical direction is provided with presstressed reinforcing steel in steel post top, and the end of elongated presstressed reinforcing steel and presstressed reinforcing steel is the screw end bar; On the edge of a wing of H section steel beam and steel post, web, be provided with fixedly presstressed reinforcing steel and anchor, the billet of elongated presstressed reinforcing steel and the nut that matches with the screw end bar with above-mentioned screw end bar corresponding site.
2. a kind of prestressed large-span solid portal steel frame according to claim 1 is characterized in that: the elongated presstressed reinforcing steel that described perforation is striden entirely can be formed by several sections, is provided with the screw socket that connects in adjacent two sections threaded ends.
3. a kind of prestressed large-span solid portal steel frame according to claim 1 and 2, it is characterized in that: described elongated presstressed reinforcing steel and presstressed reinforcing steel adopt a kind of in the cold drawn II level of moderate strength and III grade reinforcing steel or the high tensile steel wire rope, its maximum gauge is 40mm, and its intensity is 900/1100Mpa.
4. a kind of prestressed large-span solid portal steel frame according to claim 1 is characterized in that: the elongated presstressed reinforcing steel that described perforation is striden entirely, horizontal from the end to end of girder steel, girder steel is then presented and is scratched shape.
5. a kind of prestressed large-span solid portal steel frame according to claim 1 is characterized in that: the presstressed reinforcing steel of vertical direction is provided with one respectively at least on elongated presstressed reinforcing steel that described perforation is striden entirely and the steel post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00243193 CN2434357Y (en) | 2000-07-20 | 2000-07-20 | Prestressed large span solid door type steel frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00243193 CN2434357Y (en) | 2000-07-20 | 2000-07-20 | Prestressed large span solid door type steel frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2434357Y true CN2434357Y (en) | 2001-06-13 |
Family
ID=33603153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00243193 Expired - Fee Related CN2434357Y (en) | 2000-07-20 | 2000-07-20 | Prestressed large span solid door type steel frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2434357Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452122A (en) * | 2013-08-26 | 2013-12-18 | 浙江博雷重型机床制造有限公司 | Steel strand anchor installation device and connecting component thereof |
| CN103452109A (en) * | 2013-08-26 | 2013-12-18 | 浙江博雷重型机床制造有限公司 | Steel stranded wire anchor gear installing device for foundation pit supporting inner supporting system |
| KR101846856B1 (en) * | 2015-12-03 | 2018-05-24 | 동부제철 주식회사 | Frame used in building |
-
2000
- 2000-07-20 CN CN 00243193 patent/CN2434357Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452122A (en) * | 2013-08-26 | 2013-12-18 | 浙江博雷重型机床制造有限公司 | Steel strand anchor installation device and connecting component thereof |
| CN103452109A (en) * | 2013-08-26 | 2013-12-18 | 浙江博雷重型机床制造有限公司 | Steel stranded wire anchor gear installing device for foundation pit supporting inner supporting system |
| KR101846856B1 (en) * | 2015-12-03 | 2018-05-24 | 동부제철 주식회사 | Frame used in building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |