CN103233550B - Fabricated Prestressed Honeycomb Web Steel Beam - Google Patents
Fabricated Prestressed Honeycomb Web Steel Beam Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及一种装配式预应力蜂窝形腹板钢梁，属于建筑型材技术领域。The invention relates to an assembled prestressed honeycomb web steel girder, which belongs to the technical field of building profiles.
背景技术Background technique
目前，装配式钢结构体系是钢结构住宅体系发展的重要方向。传统的钢结构住宅建筑施工时采用了大量的现场焊接，施工速度慢，对环境的污染严重，最重要的是焊缝的质量不宜控制，严重影响建筑物的安全性能，装配式钢结构体系有效地克服了传统钢结构住宅的缺点。在装配式钢结构体系中，梁和梁的现场拼装是一个需要重点研究的问题。At present, the prefabricated steel structure system is an important direction for the development of the steel structure residential system. A lot of on-site welding is used in the construction of traditional steel structure residential buildings, the construction speed is slow, and the pollution to the environment is serious. The most important thing is that the quality of the welds is not suitable for control, which seriously affects the safety performance of the building. It completely overcomes the shortcomings of traditional steel structure houses. In the prefabricated steel structure system, the on-site assembly of beams and beams is a problem that needs to be studied emphatically.
在现有的装配式钢结构体系中，通常采用的是两个槽钢进行拼装，两个槽钢的腹板对接，通过螺栓进行连接，形成装配式H型钢。但是，在这种拼接方式中，剪力是通过螺栓传递给腹板，腹板为平钢板，所以所需的螺栓数和腹板的用钢量很大，抗剪承载力有待提高。In the existing prefabricated steel structure system, two channel steels are usually used for assembly, and the webs of the two channel steels are butted and connected by bolts to form a prefabricated H-shaped steel. However, in this splicing method, the shear force is transmitted to the web through bolts, and the web is a flat steel plate, so the number of bolts required and the amount of steel used for the web are large, and the shear bearing capacity needs to be improved.
由此可见，将传统的型钢构件用在装配式钢结构体系之中效果不是很理想，不仅影响构件的受力性能，而且需要消耗大量的钢材，产生不必要的浪费。综上所述，创新出应用于装配式钢结构体系的新型受力构件是装配式钢结构体系发展的必经之路。It can be seen that the effect of using traditional steel components in the fabricated steel structure system is not very satisfactory, which not only affects the mechanical performance of the components, but also consumes a large amount of steel, resulting in unnecessary waste. To sum up, it is the only way for the development of prefabricated steel structure system to innovate new type of force-bearing members applied to prefabricated steel structure system.
发明内容Contents of the invention
本发明提出了一种属于建筑型材技术领域的装配式预应力蜂窝形腹板钢梁，其目的在于提供一种成本低廉，受力性能优越的适用于装配式钢结构体系，尤其是大跨度多高层装配式钢结构体系的装配式钢梁。The present invention proposes an assembled prestressed honeycomb web steel girder belonging to the technical field of building profiles. Fabricated steel girders for high-rise fabricated steel structure systems.
本发明的技术方案如下：Technical scheme of the present invention is as follows:
一种装配式预应力蜂窝形腹板钢梁，是由两个预应力波纹腹板槽钢梁通过螺栓装配而成，两个预应力波纹腹板槽钢梁腹板对接，在腹板处通过采用螺栓在螺栓孔处进行装配连接；An assembled prestressed honeycomb web steel girder is assembled by two prestressed corrugated web channel steel girders through bolts, and the webs of the two prestressed corrugated web channel steel girders are butted, Use bolts to assemble and connect at the bolt holes;
所述预应力波纹腹板槽钢梁，包括上翼缘、腹板、下翼缘、预应力索、锚具和梁端板；其断面口型由上翼缘，腹板和下翼缘组成，所述上翼缘与下翼缘平行，所述腹板垂直位于上翼缘与下翼缘之间；The prestressed corrugated web channel steel beam includes an upper flange, a web, a lower flange, a prestressed cable, an anchorage and a beam end plate; its section shape is composed of an upper flange, a web and a lower flange , the upper flange is parallel to the lower flange, and the web is vertically located between the upper flange and the lower flange;
所述腹板的断面呈均匀或不均匀周期性重复的波纹，该波纹断面为矩形波纹曲线、梯形波纹曲线、楔形波纹曲线或正弦曲线；所述腹板上开设有螺栓孔和预应力索孔；The cross-section of the web shows uniform or non-uniform periodically repeated corrugations, and the corrugated cross-section is a rectangular corrugated curve, trapezoidal corrugated curve, wedge-shaped corrugated curve or sinusoidal curve; bolt holes and prestressed cable holes are opened on the web ;
所述上翼缘和下翼缘为钢板，腹板整体位于上翼缘和下翼缘之间，腹板的波纹曲线沿长度方向的最外侧与上翼缘和下翼缘沿长度方向的一条边线齐平相连；The upper and lower flanges are steel plates, and the web as a whole is located between the upper and lower flanges. Edges connected flush;
所述梁端板为钢板，垂直于上翼缘、腹板和下翼缘，位于预应力波纹腹板槽钢梁的两端，梁端板与上翼缘、腹板和下翼缘焊接相连；梁端板上留有预应力索孔；The beam end plate is a steel plate, perpendicular to the upper flange, web and lower flange, located at both ends of the prestressed corrugated web channel steel beam, and the beam end plate is welded to the upper flange, web and lower flange ; There are prestressed cable holes on the beam end plate;
所述预应力索，穿过腹板和梁端板上预留的预应力索孔，经张拉后由锚具将其固定在预应力波纹腹板槽钢梁两端的梁端板上。The prestressed cable passes through the prestressed cable hole reserved on the web and the beam end plate, and is fixed on the beam end plate at both ends of the prestressed corrugated web channel steel beam by anchors after being stretched.
所述矩形波纹曲线为圆弧角矩形波纹曲线，所述梯形波纹曲线为圆弧角梯形波纹曲线，所述楔形波纹曲线为圆弧角楔形波纹曲线。The rectangular corrugation curve is an arc-angle rectangular corrugation curve, the trapezoidal corrugation curve is an arc-angle trapezoidal corrugation curve, and the wedge-shaped corrugation curve is an arc-angle wedge-shaped corrugation curve.
所述梯形波纹曲线、圆弧角梯形波纹曲线的梯形斜线段的倾角为20°—90°，所述楔形波纹曲线、圆弧角楔形波纹曲线的楔形斜线段的倾角为20°—90°。The inclination angle of the trapezoidal oblique line segment of the trapezoidal corrugation curve and the arc-angle trapezoidal corrugation curve is 20°-90°, and the inclination angle of the wedge-shaped oblique line segment of the wedge-shaped corrugation curve and arc-angle wedge-shaped corrugation curve is 20°-90°.
所述腹板与上翼缘和下翼缘之间分别为单面角焊缝。There are single-side fillet welds between the web and the upper flange and the lower flange respectively.
所述腹板的波纹密度和高度可根据受力要求改变。The corrugation density and height of the web can be changed according to the force requirements.
所述圆弧角梯形波纹曲线、圆弧角矩形波纹曲线和圆弧角楔形波纹曲线采用数控折弯技术制成，正弦曲线采用数控辊压技术制成。The arc-angle trapezoidal corrugation curve, the arc-angle rectangular corrugation curve and the arc-angle wedge-shaped corrugation curve are made by numerical control bending technology, and the sinusoidal curve is made by numerical control rolling technology.
所述预应力索为预应力索，或者为预应力筋，穿过腹板和梁端板上预留的预应力索孔的预应力索是一根或者多根；The prestressed cables are prestressed cables, or prestressed tendons, and there are one or more prestressed cables passing through the prestressed cable holes reserved on the web and beam end plates;
所述预应力索的线形是凹口向上的，线形可根据受力要求改变。The line shape of the prestressed cable is notched upward, and the line shape can be changed according to the force requirement.
有益效果：本发明提出了一种适用于装配式钢结构体系的装配式预应力蜂窝形腹板钢梁，通过引入双波纹腹板和预应力技术大大地改善了装配式构件的受力性能，相比与传统的装配式钢结构体系中的装配式钢梁，本发明有以下几个优点：Beneficial effects: the invention proposes an assembled prestressed honeycomb web steel girder suitable for the assembled steel structure system, which greatly improves the mechanical performance of the assembled member by introducing double corrugated webs and prestressing technology, Compared with the prefabricated steel beams in the traditional prefabricated steel structure system, the present invention has the following advantages:
本发明的钢梁采用了两个预应力索对称布置，有效地提高了装配式钢梁的承载能力，保证了受力的合理性，预应力技术的引用，可以在保证装配式钢梁承载能力的前提下，有效地减轻装配式钢梁的自重，增加装配式钢梁的跨度，使本发明更适用于大跨度和多高层装配式钢结构体系之中。The steel beam of the present invention adopts two prestressed cables symmetrically arranged, which effectively improves the bearing capacity of the assembled steel beam and ensures the rationality of the force. The introduction of prestressing technology can ensure the bearing capacity of the assembled steel beam Under the premise, the self-weight of the assembled steel beam can be effectively reduced, and the span of the assembled steel beam can be increased, so that the present invention is more suitable for large-span and multi-high-rise assembled steel structure systems.
本发明的钢梁腹板呈现波纹曲线型，可以有效的利用波纹钢板优良的平面外刚度、抗屈曲承载能力和较高的疲劳强度，与槽钢拼装成的平钢板相比，在厚度相同的情况下，抗剪承载力和抗面外变形能力都有显著提高。The steel girder web of the present invention presents a corrugated curve shape, which can effectively utilize the excellent out-of-plane rigidity, buckling bearing capacity and high fatigue strength of the corrugated steel plate. In this case, the shear bearing capacity and out-of-plane deformation resistance are significantly improved.
本发明的钢梁腹板是两个波纹腹板的装配，相当于双波纹腹板，可以有效地提高构件的稳定性和承载能力，尤其是抗扭承载力，腹板的平面布置呈蜂窝状，可以在构件的整体承载力方面获得最优结果。The steel beam web of the present invention is an assembly of two corrugated webs, equivalent to double corrugated webs, which can effectively improve the stability and bearing capacity of the member, especially the torsional bearing capacity, and the planar layout of the webs is honeycomb , the best results can be obtained in terms of the overall bearing capacity of the member.
因此，采用本发明的装配式预应力蜂窝形腹板钢梁可以同时发挥上述三种技术优势，与其他同类产品相比，其力学性能有显著提高，预应力技术的引用可以大幅度的削减用钢量，增加装配式钢梁的跨度，有效地促进大跨度和多高层装配式钢结构体系在我国的发展。Therefore, the assembled prestressed honeycomb web steel girder of the present invention can give full play to the above three technical advantages at the same time. Compared with other similar products, its mechanical properties are significantly improved, and the use of prestressed technology can be greatly reduced. Increase the amount of steel, increase the span of fabricated steel beams, and effectively promote the development of large-span and multi-high-rise fabricated steel structure systems in my country.
同时，本发明提出的装配式预应力蜂窝形腹板钢梁中，断面组合最大特点是更大程度上优化了断面力学性能与产品用钢量之间的关系，使其更趋于合理化和科学化。预应力技术的引用可以提高钢梁的承载能力，减轻钢梁自重，增加钢梁的跨度。因此，本发明具有高承载力和高刚度等优良的受力性能，是一种十分理想的结构用型钢材料。本发明采用全自动焊接技术和专业定位工装夹具，能确保腹板和翼缘之间的准确定位，焊缝轨迹一致，容易实现标准化，可以实现多规模生产，有效提高生产效率。At the same time, in the prefabricated prestressed honeycomb web steel girder proposed by the present invention, the biggest feature of the section combination is to optimize the relationship between the mechanical properties of the section and the amount of steel used in the product to a greater extent, making it more rational and scientific change. The introduction of prestressing technology can improve the bearing capacity of the steel beam, reduce the self-weight of the steel beam, and increase the span of the steel beam. Therefore, the present invention has excellent mechanical properties such as high bearing capacity and high rigidity, and is a very ideal structural steel material. The invention adopts fully automatic welding technology and professional positioning fixtures, which can ensure accurate positioning between the web and the flange, consistent welding seam track, easy standardization, multi-scale production, and effectively improve production efficiency.
与传统的装配式钢梁相比，本发明显著的提高了装配式钢梁的承载能力，减少了用钢量，增加了跨度，降低了工程造价，同时可以实现大规模的工业化生产和现场快速装配式，减少施工周期。Compared with the traditional assembled steel beam, the present invention significantly improves the bearing capacity of the assembled steel beam, reduces the amount of steel used, increases the span, reduces the cost of the project, and at the same time can realize large-scale industrial production and on-site rapid Prefabricated, reducing construction period.
附图说明Description of drawings
图1是本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2是本发明的结构单元分解图；Fig. 2 is an exploded view of a structural unit of the present invention;
图3是预应力波纹腹板槽钢梁的示意图；Figure 3 is a schematic diagram of a prestressed corrugated web channel steel girder;
图4是预应力波纹腹板槽钢梁的单元分解图；Figure 4 is an exploded view of the unit of the prestressed corrugated web channel steel beam;
图5是腹板断面的矩形波纹曲线示意图；Fig. 5 is a schematic diagram of a rectangular corrugated curve of a web section;
图6是腹板断面的梯形波纹曲线示意图；Fig. 6 is a schematic diagram of the trapezoidal corrugation curve of the web section;
图7是腹板断面的楔形波纹曲线示意图；Fig. 7 is a schematic diagram of the wedge-shaped corrugation curve of the web section;
图8是腹板断面的圆弧角矩形波纹曲线示意图；Fig. 8 is a schematic diagram of the arc angle rectangular corrugation curve of the web section;
图9是腹板断面的圆弧角梯形波纹曲线示意图；Fig. 9 is a schematic diagram of the arc angle trapezoidal corrugation curve of the web section;
图10是腹板断面的圆弧角楔形波纹曲线示意图；Fig. 10 is a schematic diagram of the arc angle wedge-shaped corrugation curve of the web section;
图11是腹板断面的正弦曲线波纹曲线示意图；Fig. 11 is a schematic diagram of the sinusoidal corrugation curve of the web section;
图12是预应力波纹腹板槽钢梁的平面示意图；Figure 12 is a schematic plan view of a prestressed corrugated web channel steel girder;
图13是装配式预应力蜂窝形腹板钢梁的平面示意图；Fig. 13 is a schematic plan view of an assembled prestressed honeycomb web steel girder;
图中：1-预应力波纹腹板槽钢梁，2-上翼缘，3-腹板，4-下翼缘，5-螺栓孔，6-螺栓，7-预应力索，8-预应力索孔，9-锚具，10-梁端板。In the figure: 1- prestressed corrugated web channel steel beam, 2- upper flange, 3- web, 4- lower flange, 5- bolt hole, 6- bolt, 7- prestressed cable, 8- prestressed Cable hole, 9-anchor, 10-beam end plate.
具体实施方式Detailed ways
下面通过实施例结合附图进一步说明本发明。The present invention is further illustrated below by means of embodiments in conjunction with the accompanying drawings.
如附图1-2所示，本发明提出的装配式预应力蜂窝形腹板钢梁是由两个预应力波纹腹板槽钢梁1通过螺栓6装配而成，两个预应力波纹腹板槽钢梁1腹板对接，在腹板处通过采用螺栓6在螺栓孔5处进行装配连接。As shown in accompanying drawings 1-2, the assembled prestressed honeycomb web steel girder proposed by the present invention is assembled by two prestressed corrugated web channel steel girders 1 through bolts 6, and the two prestressed corrugated webs The webs of the channel steel beam 1 are butted, and the webs are assembled and connected at the bolt holes 5 by using bolts 6 .
如附图3-4所示，所述预应力波纹腹板槽钢梁1，包括上翼缘2，腹板3，下翼缘4，预应力索7，锚具9和梁端板10；其断面口型由上翼缘2，腹板3和下翼缘4组成，上翼缘2与下翼缘4平行，腹板3垂直位于上翼缘2与下翼缘4之间，所述腹板3上开设有螺栓孔5和预应力索孔8。As shown in accompanying drawings 3-4, the prestressed corrugated web channel steel girder 1 includes an upper flange 2, a web 3, a lower flange 4, prestressed cables 7, anchors 9 and beam end plates 10; Its cross-sectional shape is composed of an upper flange 2, a web 3 and a lower flange 4, the upper flange 2 is parallel to the lower flange 4, and the web 3 is vertically located between the upper flange 2 and the lower flange 4. Bolt holes 5 and prestressed cable holes 8 are opened on the web 3 .
如附图5-11所示，所述腹板3的断面呈均匀或不均匀周期性重复的波形，该波纹断面为矩形波纹曲线，或为圆弧角矩形波纹曲线，或为梯形波纹曲线，或为圆弧角梯形波纹曲线，或为楔形波纹曲线，或为圆弧角楔形波纹曲线，或为正弦曲线。As shown in accompanying drawings 5-11, the section of the web 3 is a uniform or non-uniform periodically repeated waveform, and the corrugated section is a rectangular corrugated curve, or a rectangular corrugated curve with arc angles, or a trapezoidal corrugated curve, Either a trapezoidal corrugated curve with an arc angle, or a wedge-shaped corrugated curve, or a wedge-shaped corrugated curve with an arc angle, or a sine curve.
如附图3-4和附图12-13所示，所述上翼缘2和下翼缘4为钢板，腹板3整体位于上翼缘2和下翼缘4之间，腹板3的波纹曲线沿长度方向的最外侧与上翼缘2和下翼缘4沿长度方向的一条边线齐平相连，腹板3与上翼缘2和下翼缘4之间分别为单面角焊缝；所述梁端板10为钢板，垂直于上翼缘2、腹板3和下翼缘4，位于预应力波纹腹板槽钢梁1的两端，梁端板10与上翼缘2、腹板3和下翼缘4焊接相连；梁端板10上留有预应力索孔8；所述预应力索7，穿过腹板3和梁端板10上预留的预应力索孔8，经张拉后由锚具9将其固定在预应力波纹腹板槽钢梁1两端的梁端板10上。As shown in accompanying drawings 3-4 and accompanying drawings 12-13, the upper flange 2 and the lower flange 4 are steel plates, the web 3 is located between the upper flange 2 and the lower flange 4 as a whole, and the web 3 The outermost side of the corrugation curve along the length direction is flush with a side line of the upper flange 2 and the lower flange 4 along the length direction, and the web 3 and the upper flange 2 and lower flange 4 are respectively single-sided fillet welds The beam end plate 10 is a steel plate, perpendicular to the upper flange 2, the web 3 and the lower flange 4, located at the two ends of the prestressed corrugated web channel steel beam 1, the beam end plate 10 and the upper flange 2, The web 3 and the lower flange 4 are connected by welding; the prestressed cable hole 8 is left on the beam end plate 10; the prestressed cable 7 passes through the prestressed cable hole 8 reserved on the web 3 and the beam end plate 10 After being stretched, it is fixed on the beam end plates 10 at both ends of the prestressed corrugated web channel steel beam 1 by the anchorage 9.
其中，所述梯形波纹曲线、圆弧角梯形波纹曲线的梯形斜线段的倾角为20°—90°，所述楔形波纹曲线、圆弧角楔形波纹曲线的楔形斜线段的倾角为20°—90°。所述腹板3的波纹密度和高度可根据受力要求改变。所述圆弧角梯形波纹曲线、圆弧角矩形波纹曲线和圆弧角楔形波纹曲线采用数控折弯技术制成，正弦曲线采用数控辊压技术制成。而预应力索7为预应力索，或者为预应力筋，穿过腹板3和梁端板10上预留的预应力索孔8的预应力索7是一根或者多根；预应力索7的线形是凹口向上的，线形可根据受力要求改变。Wherein, the inclination angle of the trapezoidal oblique line section of the trapezoidal corrugation curve and arc angle trapezoidal corrugation curve is 20°-90°, and the inclination angle of the wedge-shaped oblique line segment of the wedge-shaped corrugation curve and arc angle wedge-shaped corrugation curve is 20°-90° °. The corrugation density and height of the web 3 can be changed according to the force requirements. The arc-angle trapezoidal corrugation curve, the arc-angle rectangular corrugation curve and the arc-angle wedge-shaped corrugation curve are made by numerical control bending technology, and the sinusoidal curve is made by numerical control rolling technology. The prestressed cable 7 is a prestressed cable, or a prestressed tendon, and the prestressed cable 7 passing through the prestressed cable hole 8 reserved on the web 3 and the beam end plate 10 is one or more; The line shape of 7 is notch upwards, and the line shape can be changed according to the stress requirement.
以上是本发明的一个典型实施例，本发明的实施不限于此。The above is a typical embodiment of the present invention, and the practice of the present invention is not limited thereto.
Claims (8)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU209215U1 (en) * | 2021-10-20 | 2022-02-07 | Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" | Metal beam with variable corrugated wall |
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| CN103485479A (en) * | 2013-09-13 | 2014-01-01 | 北京工业大学 | Assembly type prestress honeycombed web composite beam |
| CN103882963A (en) * | 2014-03-24 | 2014-06-25 | 北京工业大学 | Assembly type steel structure system spliced by pre-stressing force in meshed mode |
| CN105064197B (en) * | 2015-07-23 | 2017-03-22 | 苏交科集团股份有限公司 | Corrugated steel web plate combined web plate structure |
| CN106638990A (en) * | 2017-02-17 | 2017-05-10 | 北京工业大学 | Function recoverable end plate assembling type honeycomb web beam column joint connecting device |
| CN107386527A (en) * | 2017-06-12 | 2017-11-24 | 河南奥斯派克科技有限公司 | Pass through the prestressing force double-C-shaped steel composite structural member and its manufacture craft of antinode plate |
| CN109457866B (en) * | 2018-12-13 | 2020-07-14 | 河海大学 | Anti-sliding partially-wrapped composite beam and prefabricating method thereof |
| CN110241971B (en) * | 2019-07-19 | 2024-12-06 | 同济大学建筑设计研究院(集团)有限公司 | A prestressed composite steel structure component and construction method thereof |
| CN113565003A (en) * | 2020-04-29 | 2021-10-29 | 东南大学 | Prestressed composite beam of corrugated steel web plate |
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