CN102914446B - A kind of box bridge static test frame - Google Patents
A kind of box bridge static test frame Download PDFInfo
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- CN102914446B CN102914446B CN201210443273.4A CN201210443273A CN102914446B CN 102914446 B CN102914446 B CN 102914446B CN 201210443273 A CN201210443273 A CN 201210443273A CN 102914446 B CN102914446 B CN 102914446B
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Abstract
The invention discloses a kind of box bridge static test frame, this box bridge static test frame comprises two box sills and two box type girders, connection end-rack is provided with in the end of two box type girders, connect end-rack to be connected with girder by bolt, girder pull bar holder is provided with at girder two ends, sill pull bar holder is provided with at the two ends of sill, double thread pull bar is installed with between girder pull bar holder and sill pull bar holder, the nut of double thread drawing rod via two end limits the maximum spacing of girder and sill, the lower surface of girder is also provided with five loading beams perpendicular to girder trend, the length of loading beam is not less than the outer boxboard distance of two girders, this box bridge static test frame is under the prerequisite meeting testing requirements, structure is simple, from heavy and light, steel consumption amount is little, low cost of manufacture.
Description
Technical field
The present invention relates to a kind of checkout equipment of bridge, especially a kind of static load test frame for concrete prefabricated box bridge.
Background technology
Box-shaped precast bridge for high-speed railway has to pass through static test and checks its workmanship and performance parameter, by static test code requirement, the box beam of 32 meters long needs two row's loaded load, often arrange 5 load(ing) points, two rows totally 10 load(ing) points, each load(ing) point maximum load power is 140 tons, so afterburning 1400 tons of whole case beam static load, this static test needs to complete on special test stand.CN201122142Y discloses a kind of prestressed concrete pre-tensioned case beam static test pedestal, this pedestal can meet the static test requirement of box-shaped precast bridge, but, this device needs the grade beam arranging huge reinforced concrete structure in underground, therefore, after Chu Liang factory construction terminates, the grade beam built also goes out of use thereupon, not only waste resource, and destroy ecologic environment.CN201110804Y discloses a kind of Multifunctional experimental bench, this test stand is primarily of girder, entablature, sill, binder, bearing beam, pull bar, bearing and oil top composition, this test stand can move at beam inter-plant and reuse, but, this test stand deadweight is larger, consumption steel are more, bring inconvenience to on-the-spot handling and assembling.
Summary of the invention
The technical matters that invention will solve: for above-mentioned the deficiencies in the prior art, provides a kind of box bridge static test frame, and this box bridge static test frame is under the prerequisite meeting testing requirements, and structure is simple, and from heavy and light, steel consumption amount is little, low cost of manufacture.
The technical scheme that technical solution problem is taked: a kind of box bridge static test frame, comprise two box sills and two box type girders, connection end-rack is provided with in the end of two box type girders, connect end-rack to be connected with girder by bolt, girder pull bar holder is provided with at girder two ends, sill pull bar holder is provided with at the two ends of sill, double thread pull bar is installed with between girder pull bar holder and sill pull bar holder, the nut of double thread drawing rod via two end limits the maximum spacing of girder and sill, the lower surface of girder is also provided with five loading beams perpendicular to girder trend, the length of loading beam is not less than the outer boxboard distance of two girders.
As improvement of the present invention: described girder is connected and composed by three sections of case beam bolts of equal length.
As a further improvement on the present invention: described connection end-rack is divided into three sections, two sections that are positioned at outside are welded on girder, and two ends, stage casing are connected and composed by two sections, bolt and outside and are connected end-rack.
Improve further again as of the present invention: be provided with four groups of double thread pull bars between described girder and sill, often group is made up of eight double thread pull bars.
Beneficial effect: box bridge static test frame of the present invention, two box sills and two box type girders are comprised owing to have employed described in box bridge static test frame, connection end-rack is provided with in the end of two box type girders, connect end-rack to be connected with girder by bolt, girder pull bar holder is provided with at girder two ends, sill pull bar holder is provided with at the two ends of sill, double thread pull bar is installed with between girder pull bar holder and sill pull bar holder, the nut of double thread drawing rod via two end limits the maximum spacing of girder and sill, the lower surface of girder is also provided with five loading beams perpendicular to girder trend, the length of loading beam is not less than the technical characteristic of the outer boxboard distance of two girders, by adopting the elongated loading beam design directly arranging pull bar holder on girder and be not less than the outer boxboard distance of two girders, improve the torque resistant ability of girder, make box bridge static test frame of the present invention still can meet the requirement of box bridge static test after cancelling the entablature in prior art (CN201110804Y), and reduce two every root deadweights of entablature at least want 10 tons, therefore, box bridge static test frame of the present invention is under the prerequisite meeting testing requirements, structure is simple, from heavy and light, decrease the consumption of steel, reduce low cost of manufacture, owing to have employed the technical characteristic that described girder is connected and composed by three sections of case beam bolts of equal length, facilitate the making of girder, transport and on-site hoisting, three sections are divided into owing to have employed described connection end-rack, two sections that are positioned at outside are welded on girder, and two ends, stage casing connect and compose by two sections, bolt and outside the technical characteristic being connected end-rack, not only facilitate the installation of end-rack, and shorten installation work-hour, improve installation effectiveness, four groups of double thread pull bars are provided with owing to have employed between described girder and sill, the often technical characteristic that is made up of eight double thread pull bars of group, make box bridge static test frame load-bearing capacity of the present invention stronger, can stablize, reliably complete the static test of bridge.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the front view of box bridge static test frame of the present invention;
Fig. 2 is the left view of box bridge static test frame of the present invention.
Embodiment
As shown in Figure 2, box bridge static test frame of the present invention, comprise two box sills 6 and two box type girders 1, be provided with in the end of two box type girders and connect end-rack 9, connect end-rack to be connected with girder by bolt, girder pull bar holder 7 is provided with at girder two ends, sill pull bar holder 5 is provided with at the two ends of sill, double thread pull bar 3 is installed with between girder pull bar holder and sill pull bar holder, the nut of double thread drawing rod via two end limits the maximum spacing of girder and sill, the lower surface of girder is also provided with five loading beams 2 perpendicular to girder trend, the length of loading beam is not less than outer boxboard 8 distance of two girders.
As shown in Figure 1, described girder is connected and composed by three sections of case beam bolts of equal length, and five loading beams are equidistantly provided with along girder trend, and test is afterburning to be loaded in Box Girder Bridge 4 by loading beam.
As preferred structure, described connection end-rack is divided into three sections, and two sections that are positioned at outside are welded on girder, and two ends, stage casing are connected and composed by two sections, bolt and outside and are connected end-rack, be provided with four groups of double thread pull bars between described girder and sill, often group is made up of eight double thread pull bars.
Claims (4)
1. a box bridge static test frame, comprise two box sills and two box type girders, connection end-rack is provided with in the end of two box type girders, connect end-rack to be connected with girder by bolt, it is characterized in that: be provided with girder pull bar holder at girder two ends, sill pull bar holder is provided with at the two ends of sill, double thread pull bar is installed with between girder pull bar holder and sill pull bar holder, the nut of double thread drawing rod via two end limits the maximum spacing of girder and sill, the lower surface of girder is also provided with five loading beams perpendicular to girder trend, the length of loading beam is not less than the outer boxboard distance of two girders.
2. box bridge static test frame according to claim 1, is characterized in that: described girder is connected and composed by three sections of case beam bolts of equal length.
3. box bridge static test frame according to claim 1 and 2, is characterized in that: described connection end-rack is divided into three sections, and two sections that are positioned at outside are welded on girder, and two ends, stage casing are connected and composed by two sections, bolt and outside and are connected end-rack.
4. box bridge static test frame according to claim 3, it is characterized in that: be provided with four groups of double thread pull bars between described girder and sill, often group is made up of eight double thread pull bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210443273.4A CN102914446B (en) | 2012-11-08 | 2012-11-08 | A kind of box bridge static test frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210443273.4A CN102914446B (en) | 2012-11-08 | 2012-11-08 | A kind of box bridge static test frame |
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| Publication Number | Publication Date |
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| CN102914446A CN102914446A (en) | 2013-02-06 |
| CN102914446B true CN102914446B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210443273.4A Active CN102914446B (en) | 2012-11-08 | 2012-11-08 | A kind of box bridge static test frame |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610343A (en) * | 2015-10-27 | 2017-05-03 | 张志国 | A pier counterforce closing force system self-balance-type railway cast-in-situ beam static load test apparatus |
| CN110346159B (en) * | 2019-06-18 | 2021-01-26 | 中国二十冶集团有限公司 | Load test beam for hydraulic jacking equipment and rolling mill frame hoisting simulation method |
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| DE102005027759A1 (en) * | 2005-06-15 | 2007-02-22 | Hochschule Bremen | In-situ determination method e.g. for expansions in solid building structures, involves in-situ-regulating section of structures, which are arranged parallel to each other and having lengthwise slots |
| CN201110804Y (en) * | 2007-09-21 | 2008-09-03 | 中铁大桥局股份有限公司 | Multifunctional experimental bench |
| CN201397245Y (en) * | 2009-03-13 | 2010-02-03 | 武汉神骏专用汽车制造股份有限公司 | 32m double full-span box girder test bed |
| CN201945464U (en) * | 2010-12-28 | 2011-08-24 | 北京中铁房山桥梁有限公司 | Steel structure spreader beam type double-line full span box beam static loading test device |
| CN202002842U (en) * | 2011-01-20 | 2011-10-05 | 武汉远通路桥物资有限公司 | Pin-joint truss type static load test device |
| CN202994491U (en) * | 2012-11-08 | 2013-06-12 | 辽宁铭鹏防爆起重机有限公司 | Box-type bridge static load testing stand |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2559694C (en) * | 2005-09-23 | 2015-11-10 | University Of Manitoba | A sensing system based on multiple resonant electromagnetic cavities |
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2012
- 2012-11-08 CN CN201210443273.4A patent/CN102914446B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| DE102005027759A1 (en) * | 2005-06-15 | 2007-02-22 | Hochschule Bremen | In-situ determination method e.g. for expansions in solid building structures, involves in-situ-regulating section of structures, which are arranged parallel to each other and having lengthwise slots |
| CN201110804Y (en) * | 2007-09-21 | 2008-09-03 | 中铁大桥局股份有限公司 | Multifunctional experimental bench |
| CN201397245Y (en) * | 2009-03-13 | 2010-02-03 | 武汉神骏专用汽车制造股份有限公司 | 32m double full-span box girder test bed |
| CN201945464U (en) * | 2010-12-28 | 2011-08-24 | 北京中铁房山桥梁有限公司 | Steel structure spreader beam type double-line full span box beam static loading test device |
| CN202002842U (en) * | 2011-01-20 | 2011-10-05 | 武汉远通路桥物资有限公司 | Pin-joint truss type static load test device |
| CN202994491U (en) * | 2012-11-08 | 2013-06-12 | 辽宁铭鹏防爆起重机有限公司 | Box-type bridge static load testing stand |
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| 客运专线有碴轨道32m双线预制箱梁静载试验研究;杜翔斌等;《隧道建设》;20070420;第27卷(第02期);第44-46页 * |
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| CN102914446A (en) | 2013-02-06 |
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