WO2017079987A1 - 提高构件受压承载力的构造方法 - Google Patents

提高构件受压承载力的构造方法 Download PDF

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Publication number
WO2017079987A1
WO2017079987A1 PCT/CN2015/094750 CN2015094750W WO2017079987A1 WO 2017079987 A1 WO2017079987 A1 WO 2017079987A1 CN 2015094750 W CN2015094750 W CN 2015094750W WO 2017079987 A1 WO2017079987 A1 WO 2017079987A1
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WO
WIPO (PCT)
Prior art keywords
pull rod
outer pipe
outer tube
compressive capacity
component
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Application number
PCT/CN2015/094750
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English (en)
French (fr)
Inventor
陈菲
Original Assignee
陈菲
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 陈菲 filed Critical 陈菲
Publication of WO2017079987A1 publication Critical patent/WO2017079987A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/10—Ducts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
    • F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles

Definitions

  • the present invention relates to a method for improving the stability of a pressure-receiving member, and more particularly to a construction method for improving the compressive bearing capacity of a member.
  • the upper limit of the bearing capacity of the existing compression members is the Euler critical force.
  • the present invention provides a construction method for improving the compressive bearing capacity of the member.
  • a pull rod having a size smaller than the inner wall of the outer tube is disposed inside the pressure-receiving member (outer tube), and a gap between the two can be relatively slid to ensure that the longitudinal direction can be freely stretched and deformed, wherein the size of the slit
  • the two are self-stress balanced.
  • the outer tube can always be provided with a continuous lateral elastic constraint, so that the pressure bearing capacity of the outer tube is improved.
  • the present invention has the following beneficial effects: a large compressive bearing capacity is achieved with an elongated member.
  • FIG. 1 is a schematic diagram of a construction method for improving a compressive bearing capacity of a member according to the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 1;
  • FIG. 4 is a schematic view showing an embodiment of a method for constructing a compressive bearing capacity of a member according to the present invention
  • Fig. 5 is a cross-sectional view taken along line A-A of Fig. 4;
  • a structural method for improving the compressive bearing capacity of a member is provided.
  • a tie rod 1 having a size smaller than the inner wall of the outer tube 2 is disposed inside the outer tube 2, and a gap 3 is present between the two to prevent the tie rod 1 from following.
  • the outer tube 2 is pressure-stabilized, wherein the size of the slit 3 can satisfy the tie rod 1 and the outer tube 2, and after the pre-force is applied, the rod 3 can slide relative to each other without locking, and the rod is pulled at the same time. 1 It is also possible to provide the outer tube 2 with a lateral elastic support as small as possible (generally less than 1 cm).
  • the two are only connected at both ends, and by applying a pre-tension to the tie rod 1 and applying an equivalent pre-pressure to the outer tube 2, the two are self-stress balanced.
  • the outer tube 2 can always be provided with a continuous lateral elastic constraint, so that the pressure bearing capacity of the outer tube 2 is improved, so that a large external pressure P can be withstood.
  • the threaded round rod-shaped pull rod 1 (specification ⁇ 42) is connected to the outer tube 2 (specification ⁇ 60 ⁇ 8.0) at both ends by the cylindrical nut 4 (as shown in Figs. 4 and 5). And the gap 3 between the two is 1 mm.
  • the two are self-stress balanced.
  • the outer tube 2 can always be provided with a continuous lateral elastic constraint, so that the pressure bearing capacity of the outer tube 2 is improved, so that a large external pressure P can be withstood.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

一种提高构件受压承载力的构造方法，包括如下步骤：在外管（2）的内部设置小于外管（2）内壁尺寸的拉杆（1），两者之间有缝隙（3）可相对滑动以保证纵向能够自由伸缩变形，避免拉杆（1）随外管（2）受压失稳，两者仅两端相连。通过给拉杆（1）施加预拉力，同时给外管（2）施加等值预压力，两者自应力平衡。在拉杆（1）失效前，可始终为外管（2）提供连续的侧向弹性约束，使得外管（2）的受压承载力获得提高。该方法利用细长构件实现了较大的受压承载力。

Description

提高构件受压承载力的构造方法 技术领域
本发明涉及一种改善受压构件稳定问题的方法，尤其是一种提高构件受压承载力的构造方法。
背景技术
目前既有的受压构件的承载力上限为欧拉临界力，要提高受压承载力通常需要加大截面来解决稳定问题，用钢多且外形粗笨。
发明内容
为改变当前构件只能通过增大截面来提高受压承载力的现状，本发明提供一种提高构件受压承载力的构造方法。
本发明是通过以下技术方案实现的：在受压构件(外管)的内部设置小于外管内壁尺寸的拉杆，两者之间有缝隙可相对滑动以保证纵向能够自由伸缩变形，其中缝隙的尺寸在满足拉杆与外管能相互套装，在拉杆施加了预力之后，两者之间还能相对滑动、不会抱死，同时拉杆还能给外管提供侧向的弹性支撑的情况下小于1厘米，避免拉杆随外管受压失稳。两者仅两端相连，通过给拉杆施加预拉力，同时给外管施加等值预压力，两者自应力平衡。在拉杆失效前，可始终为外管提供连续的侧向弹性约束，使得外管的受压承载力获得提高。
与现有技术相比，本发明具有如下的有益效果：用细长构件实现较大的受压承载力。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显。
图1是本发明提高构件受压承载力的构造方法的原理图；
图2为图1的A-A面剖视图；
图3为图1的B-B面剖视图；
图4为为本发明提高构件受压承载力的构造方法实施例示意图；
图5为图4的A-A面剖视图。
本发明说明书附图中的附图标记说明：
1-拉杆           2-外管          3-缝隙
4-螺母
具体实施方式
下面结合具体实施例对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明，但不以任何形式限制本发明。应当指出的是，对本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变化和改进。这些都属于本发明的保护范围。
如图1～图3所示，本发明提高构件受压承载力的构造方法，在外管2的内部设置小于外管2内壁尺寸的拉杆1，两者之间存有缝隙3，避免拉杆1随外管2受压失稳，其中缝隙3的尺寸在满足拉杆1与外管2能相互套装，在拉杆1施加了预力之后，两者之间还能相对滑动、不会抱死，同时拉杆1还能给外管2提供侧向的弹性支撑的情况下尽可能小(一般小于1厘米)。而且两者仅两端相连，通过给拉杆1施加预拉力并给外管2施加等值预压力，两者自应力平衡。在拉杆1失效前，可始终为外管2提供连续的侧向弹性约束，使得外管2的受压承载力获得提高，所以可承受较大的外部压力P。
在本实施例中，带螺纹的圆棒形拉杆1(规格为Φ42)通过圆柱形螺母4在两端与外管2(规格为Φ60×8.0)相连(如图4、图5所示)，且两者之间的缝隙3为1毫米。通过给拉杆1施加预拉力并给外管2施加等值预压力，两者自应力平衡。在拉杆1失效前，可始终为外管2提供连续的侧向弹性约束，使得外管2的受压承载力获得提高，所以可承受较大的外部压力P。
以上对本发明的具体实施例进行了描述。需要理解的是，本发明并不局限于上述特定实施方式，本领域技术人员可以在权利要求的范围内做出各种变化或修改，这并不影响本发明的实质内容。在不冲突的情况下，本申请的实施例和实施例中的特征可以任意相互组合。

Claims (2)

  1. 提高构件受压承载力的构造方法，其特征在于，包括如下步骤：
    在外管的内部设置小于外管内壁尺寸的拉杆，同时在所述拉杆与所述外管之间存有缝隙；在所述拉杆的两端施加反向的预拉力；连接所述拉杆的两端与所述外管。
  2. 根据权利要求1所述的提高构件受压承载力的构造方法，其特征在于，所述缝隙小于1厘米。
PCT/CN2015/094750 2015-11-11 2015-11-17 提高构件受压承载力的构造方法 WO2017079987A1 (zh)

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JPH07324440A (ja) * 1994-05-30 1995-12-12 Tube Investments Of India Ltd 高強度コア部材及びその製造方法
JPH08109705A (ja) * 1994-10-12 1996-04-30 Unie Metal Kk Ｐｃ鋼材定着用補助具
US5624628A (en) * 1994-09-22 1997-04-29 Dyckerhoff & Widmann Aktiengesellschaft Method of introducing a casting compound into a hollow space
CN102191863A (zh) * 2010-03-01 2011-09-21 修朝英 应力替换技术
JP2013100696A (ja) * 2011-11-09 2013-05-23 Ohbayashi Corp Ｐｃ鋼棒の張力の管理方法
JP2015183510A (ja) * 2014-03-26 2015-10-22 高周波熱錬株式会社 構造体補強部材、充填材料の充填方法及び構造体補強部材の製造方法

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Publication number Priority date Publication date Assignee Title
DE4211767C1 (de) * 1991-07-19 1993-12-02 Spiess Kunststoff Recycling Langgestreckter auf Biegung belastbarer Gegenstand
CN201730214U (zh) * 2010-06-24 2011-02-02 青岛理工大学 自复位防屈曲支撑装置
CN202187448U (zh) * 2011-07-21 2012-04-11 清华大学 一种带套管单杆方钢管支撑
CN103672365A (zh) * 2012-09-12 2014-03-26 张敬平 一种复合材料棒及应用
CN104595684B (zh) * 2015-01-05 2017-05-24 上海应用技术学院 受压可屈服型钢棒支撑

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07324440A (ja) * 1994-05-30 1995-12-12 Tube Investments Of India Ltd 高強度コア部材及びその製造方法
US5624628A (en) * 1994-09-22 1997-04-29 Dyckerhoff & Widmann Aktiengesellschaft Method of introducing a casting compound into a hollow space
JPH08109705A (ja) * 1994-10-12 1996-04-30 Unie Metal Kk Ｐｃ鋼材定着用補助具
CN102191863A (zh) * 2010-03-01 2011-09-21 修朝英 应力替换技术
JP2013100696A (ja) * 2011-11-09 2013-05-23 Ohbayashi Corp Ｐｃ鋼棒の張力の管理方法
JP2015183510A (ja) * 2014-03-26 2015-10-22 高周波熱錬株式会社 構造体補強部材、充填材料の充填方法及び構造体補強部材の製造方法

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CN106545124A (zh) 2017-03-29
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