A variable vertical force loading system and a frame lateral force testing method under vertical loading conditions

Abstract

The present invention discloses a vertical variable force loading system and a frame lateral force testing method under vertical loading conditions, the system comprises a reaction frame, a ground beam, a loading device, a sliding device, a loading force conversion device and a steel wire rope, the frame to be tested and the slide rail are both arranged on the ground beam, the sliding device and the loading force conversion device are arranged on the slide rail, a plurality of loading devices are arranged on the top of the frame to be tested, one end of the steel wire rope passes around the pulley on the reaction frame and is connected to a weight, the other end passes around the pulley on the sliding device, the pulley on the loading device, the loading force conversion device in turn, and is finally fixed on the fixed pile of the ground beam, in addition, a lateral loading device is arranged on the side of the reaction frame facing the frame to be tested. Under the action of the loading system, the component is subjected to a stable vertical force, which overcomes the deficiency of using a cylinder to apply a vertical force in the prior art.

Description

Technical Field

[0001] The invention relates to the field of mechanical testing of building components. Background Art

[0002] In the test of building components such as frames under vertical load, cylinders fixed above the components are usually used to apply force to the components. However, the above test requires the installation of multiple cylinders and precise control of them, which increases the cost and difficulty of the test. Moreover, when the lateral force test is performed on the component, the contact surface between the component and the cylinder will inevitably slide, which seriously affects the test effect. Summary of the invention

[0003] The purpose of the present invention is to provide a variable vertical force loading system and a frame lateral force testing method under vertical loading conditions to solve the problems existing in the prior art.

[0004] The technical solution adopted to achieve the purpose of the present invention is as follows: a vertical variable force loading system, including a reaction frame, a ground beam, a loading device, a sliding device I, a sliding device II, a loading force conversion device I, a loading force conversion device II, a loading force conversion device III and a loading force conversion device IV.

[0005] The reaction frame is located at one side of the ground beam. A reaction frame fixed pulley I and a reaction frame fixed pulley II are hung on the reaction frame.

[0006] The ground beam is fixed to the ground. A component to be tested is installed above the ground beam.

[0007] During testing, a plurality of loading devices are fixed on the top surface of the component to be tested.

[0008] The loading device comprises a loading fixed pulley I and a loading fixed pulley II, and the loading fixed pulley I and the loading fixed pulley II are respectively located on both sides of the component to be tested.

[0009] The ground beam is provided with a slide rail I, a slide rail II, a fixing pile, a ground beam fixed pulley I and a ground beam fixed pulley II.

[0010] The ground beam fixed pulley I and the ground beam fixed pulley II are installed at one end close to the reaction frame, and the fixed pile is installed at one end away from the reaction frame. The slide rail I and the slide rail II are parallel to each other and are located on both sides of the component to be tested.

[0011] One loading device, one sliding device I and one sliding device II form a group of loading systems. Several sliding devices I are installed on the slide rail I. Several sliding devices II are installed on the slide rail II.

[0012] The sliding device I comprises a fixed pulley I, a fixed pulley II and a support I. The lower end of the support I is a ram that cooperates with the slide rail I. The fixed pulley I and the fixed pulley II are installed above the support. The number of the sliding devices I is the same as the number of the loading devices, that is, in a set of loading systems, there is a fixed pulley I and a fixed pulley II below each loading fixed pulley I.

[0013] The sliding device II includes a fixed pulley III, a fixed pulley IV and a support II. The lower end of the support II is a ram that cooperates with the slide rail II. The fixed pulley I and the fixed pulley II are installed above the support II. The number of the sliding devices II is the same as the number of the loading devices, that is, in a set of loading systems, there is a fixed pulley III and a fixed pulley IV below each loading fixed pulley II.

[0014] Several groups of loading systems are numbered starting from one end close to the reaction frame, and a loading force conversion device I is provided between the first group of loading systems and the second group of loading systems. The loading force conversion device I comprises a large rotating wheel I, a small rotating wheel I, a rotating wheel frame I and an axle I. The rotating wheel frame I is fixed on a slide rail I. The axle I is mounted on the rotating wheel frame I. The large rotating wheel I and the small rotating wheel I share the axle I and are connected as a whole. The large rotating wheel I and the small rotating wheel I can rotate freely and synchronously.

[0015] A loading force conversion device II is provided between the first loading system and the second loading system. The loading force conversion device II comprises a large rotating wheel II, a small rotating wheel II, a rotating wheel frame II and an axle II. The rotating wheel frame II is fixed on a slide rail II. The axle II is mounted on the rotating wheel frame II. The large rotating wheel II and the small rotating wheel II share the axle II and are connected as one. The large rotating wheel II and the small rotating wheel II can rotate freely and synchronously.

[0016] A loading force conversion device III is provided between the last group of loading systems and the penultimate group of loading systems. The loading force conversion device III comprises a large rotating wheel III, a small rotating wheel III, a rotating wheel frame III and a wheel axle III. The rotating wheel frame III is fixed on the slide rail I. The wheel axle III is mounted on the rotating wheel frame III. The large rotating wheel III and the small rotating wheel III share the wheel axle III and are connected as one. The large rotating wheel III and the small rotating wheel III can rotate freely and synchronously.

[0017] A loading force conversion device IV is provided between the last group of loading systems and the penultimate group of loading systems. The loading force conversion device IV comprises a large rotating wheel IV, a small rotating wheel IV, a rotating wheel frame IV and a wheel axle IV. The rotating wheel frame IV is fixed on the slide rail II. The wheel axle IV is mounted on the rotating wheel frame IV. The large rotating wheel IV and the small rotating wheel IV share the wheel axle IV and are connected as a whole. The large rotating wheel III and the small rotating wheel IV can rotate freely and synchronously.

[0018] One end of the wire rope 1 is subjected to tension during the test, and the other end is wound around the reaction frame fixed pulley 1, the ground beam fixed pulley 1, and the first set of loading systems in sequence, and then wound around the small rotating wheel 1 for several turns.

[0019] One end of the wire rope II is wound around the large wheel I for several turns, and the other end is wound around the second loading system, the third loading system... the penultimate loading system, and then wound around the large wheel III for several turns.

[0020] One end of the steel wire rope III is wound around the small rotating wheel III for several turns, and the other end is fixed on the fixed pile after passing around the last group of loading systems in turn.

[0021] When the steel wire rope I, steel wire rope II or steel wire rope III passes around any group of loading systems, it passes around the fixed pulley I, the loading fixed pulley I and the fixed pulley II in sequence.

[0022] One end of the wire rope IV is subjected to tension during the test, and the other end is wound around the reaction frame fixed pulley II, the ground beam fixed pulley II, and the first set of loading systems in sequence, and then wrapped around the small rotating wheel II for several turns.

[0023] One end of the wire rope V is wound around the large wheel II for several turns, and the other end is wound around the second loading system, the third loading system... the penultimate loading system in turn, and then wound around the large wheel IV for several turns.

[0024] One end of the wire rope VI is wound around the small rotating wheel IV for several turns, and the other end is fixed on the fixed pile after passing around the last group of loading systems in turn.

[0025] When the steel wire rope IV, steel wire rope V or steel wire rope VI passes around any group of loading systems, it passes around the fixed pulley III, the loading fixed pulley II and the fixed pulley IV in sequence.

[0026] Furthermore, the slide rails I and II are made of rectangular steel.

[0027] The support 1 includes an upper end plate 1 and two side plates 1. The two side plates 1 are respectively located on both sides of the slide rail 1, and the upper ends of the two side plates are connected to the bottom of the upper end plate 1. A pulley 1 is installed between the two side plates 1.

[0028] Fixed pulleys I and II are installed on the upper surface of the upper end plate I. During operation, the fixed pulleys I and II together with the support I are lifted by the wire rope, and the pulley I contacts the lower surface of the slide rail I and slides along the lower surface of the slide rail I.

[0029] The support II comprises an upper end plate II and two side plates II. The two side plates II are respectively located on both sides of the slide rail II, and the upper ends of the two side plates are connected to the lower side of the upper end plate II. A pulley II is installed between the two side plates.

[0030] The fixed pulley III and the fixed pulley IV are installed on the upper surface of the upper end plate II. When working, the fixed pulley III and the fixed pulley IV together with the support II are lifted by the wire rope, and the pulley II contacts the lower surface of the slide rail I and slides along the lower surface of the slide rail I.

[0031] Furthermore, the slide rails I and II are I-beams, and grooves are formed on both sides of the I-beams.

[0032] The support I includes an upper end plate I and two side plates I. The two side plates I are respectively located on both sides of the slide rail I, and the upper ends of the two side plates are connected to the bottom of the upper end plate I. Track pulleys I and track pulleys II are respectively installed on the two side plates I. Track pulleys I and track pulleys II are respectively located in grooves on both sides of the I-beam.

[0033] The fixed pulley I and the fixed pulley II are installed on the upper surface of the upper end plate I. During operation, the fixed pulley I and the fixed pulley II together with the support I are lifted by the wire rope, and the track pulley I and the track pulley II contact the lower surface of the upper flange of the slide rail I and slide along the lower surface of the slide rail I.

[0034] The support II includes an upper end plate II and two side plates II. The two side plates II are respectively located on both sides of the slide rail II, and the upper ends of the two side plates II are connected to the lower side of the upper end plate II. The two side plates II are respectively installed with track pulleys III and track pulleys IV. The track pulleys III and track pulleys IV are respectively located in the grooves on both sides of the I-beam.

[0035] The fixed pulley III and the fixed pulley IV are installed on the upper surface of the upper end plate II. When working, the fixed pulley III and the fixed pulley IV are lifted by the wire rope together with the support II, and the track pulley III and the track pulley IV contact the lower surface of the upper flange of the slide rail II and slide along the lower surface of the slide rail II.

[0036] Furthermore, the reaction frame includes a reaction column and a reaction beam.

[0037] The reaction frame fixed pulley I and reaction frame fixed pulley II are suspended on the reaction beam. A lateral loading device for loading lateral force is installed on the side of the reaction column facing the test piece to be tested.

[0038] Furthermore, the loading force conversion device I and the loading force conversion device III cooperate with each other. The large rotating wheel I and the large rotating wheel III have the same diameter. The small rotating wheel I and the small rotating wheel III have the same diameter.

[0039] The loading force conversion device II and the loading force conversion device IV cooperate with each other. The large rotating wheel II has the same diameter as the large rotating wheel IV. The small rotating wheel II has the same diameter as the small rotating wheel IV.

[0040] Further, a weight I is hung on the end of the steel wire rope I subjected to tension. A weight II is hung on the end of the steel wire rope IV subjected to tension.

[0041] Furthermore, the loading device includes a loading plate, a loading fixed pulley I, and a loading fixed pulley II. During testing, the loading plate is fixed to the top surface of the component to be tested, and the loading fixed pulley I and the loading fixed pulley II are respectively located on both sides of the component to be tested. The upper ends of the loading fixed pulley I and the loading fixed pulley II are fixed to the lower end of the loading plate.

[0042] In the above-mentioned method for testing the lateral force of a frame under vertical loading conditions using a vertical variable force loading system, the test piece to be tested is a frame to be tested.

[0043] The frame to be tested comprises a frame upper beam, a frame column and a frame lower beam, wherein the frame lower beam is fixed to a ground beam.

[0044] Furthermore, a plurality of the loading devices are fixed above the frame to be tested, wherein the loading devices in the first and last groups of the loading systems are fixed above two frame columns respectively.

[0045] Furthermore, during the test, the loading device applies a vertical force to the frame to be tested. The lateral loading device installed on the reaction frame is a telescopic cylinder, whose telescopic end contacts the side of the frame to be tested and applies a lateral force to the frame to be tested.

[0046] The technical effect of the present invention is unquestionable. Under the action of the loading system, the component is subjected to a stable vertical force, which overcomes the shortcomings of the prior art of using a cylinder to apply a vertical force. At the same time, compared with the conventional test method of using multiple cylinders to apply force to the component, the present invention is simpler to operate, and the force is applied evenly everywhere, which reduces the test cost and difficulty. In addition, when the present invention performs a lateral force test on the component, there is no problem of sliding on the surface of the component and the cylinder in contact, ensuring the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a front view of the vertical variable force loading system of the present invention;

[0048] Figure 2 for Figure 1 AA section view;

[0049] Figure 3 for Figure 1 BB cross-sectional view;

[0050] Figure 4 for Figure 1 CC section view;

[0051] Figure 5 for Figure 1 DD cross-sectional view;

[0052] Figure 6 It is a rear view of the vertical variable force loading system of the present invention;

[0053] Figure 7 for Figure 6 EE cross-sectional view;

[0054] Figure 8 for Figure 6 FF cross-sectional view;

[0055] Fig. 9 is a schematic diagram of a sliding device 1 on a slide rail 1;

[0056] Fig.10 for Fig. 9 GG cross-sectional view;

[0057] Fig.11 is a schematic diagram of a sliding device II on a slide rail II;

[0058] Fig.12 for Fig.11 HH cross-sectional view;

[0059] Fig.13 Schematic diagram of the sliding device 1 when the slide rail 1 is made of rectangular steel.

[0060] In the figure: reaction frame 1, reaction column 101, reaction beam 102, reaction frame fixed pulley IA103, reaction frame fixed pulley IIB103, ground beam 2, slide rail IA201, slide rail IIB201, fixed pile 202, ground beam fixed pulley IA203, ground beam fixed pulley IIB203, frame to be tested 3, frame upper beam 301, frame column 302, frame lower beam 303, loading device 4, loading plate 401, loading fixed pulley IA402, loading fixed pulley IIB402, sliding device IA5, fixed pulley IA501, fixed pulley IIA502, bearing IA503, track pulley IA5031, track pulley IIA5032, sliding device IIB5, fixed pulley IIIB501, fixed pulley IVB502, bearing IIB503, track pulley IIIB5031, track pulley IVB5032, Loading force conversion device IA6, large wheel IA601, small wheel IA602, wheel frame IA603, axle IA604, loading force conversion device IIB6, large wheel IIB601, small wheel IIB602, wheel frame IIB603, axle IIB604, loading force conversion device IIIA7, large wheel IIIA701, small wheel IIIA702, wheel frame IIIA703, axle IIIA704, loading force conversion device IVB7, large wheel IVB701, small wheel IVB702, wheel frame IVB703, axle IVB704, wire rope IA801, wire rope IVB801, wire rope IIA802, wire rope VB802, wire rope IIIA803, wire rope VIB803, side loading device 9, weight IA10 and weight IIB10. DETAILED DESCRIPTION

[0061] The present invention is further described below in conjunction with the embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the art, which should all be included in the protection scope of the present invention.

[0062] Embodiment 1:

[0063] The present embodiment discloses a vertical variable force loading system, including a reaction frame 1, a ground beam 2, a loading device 4, a sliding device IA5, a sliding device IIB5, a loading force conversion device IA6, a loading force conversion device IIB6, a loading force conversion device IIIA7 and a loading force conversion device IVB7.

[0064] See also Figure 1 Or 6, the reaction frame 1 is located at one side of the ground beam 2. The reaction frame 1 includes a reaction column 101 and a reaction beam 102. The reaction frame fixed pulley IA103 and the reaction frame fixed pulley IIB103 are suspended on the reaction beam 102.

[0065] The ground beam 2 is fixed to the ground. The component to be tested is installed above the ground beam 2, and the lateral loading device 9 for loading the lateral force is installed on the side of the reaction column 101 facing the test piece to be tested.

[0066] During testing, a plurality of loading devices 4 are fixed on the top surface of the component to be tested.

[0067] The loading device 4 includes a loading fixed pulley IA402, a loading fixed pulley IIB402 and a loading plate 401. During testing, the loading plate 401 is fixed to the top surface of the component to be tested, see 2 or 3, the loading fixed pulley IA402 and the loading fixed pulley IIB402 are respectively located on both sides of the component to be tested, and the upper ends of the loading fixed pulley IA402 and the loading fixed pulley IIB402 are fixed to the lower end of the loading plate 401.

[0068] The ground beam 2 is provided with a slide rail IA201, a slide rail IIB201, a fixing pile 202, a ground beam fixed pulley IA203 and a ground beam fixed pulley IIB203.

[0069] The ground beam fixed pulley IA203 and the ground beam fixed pulley IIB203 are installed at one end close to the reaction frame 1, and the fixed pile 202 is installed at one end away from the reaction frame 1. The slide rail IA201 and the slide rail IIB201 are parallel to each other and are located on both sides of the component to be tested.

[0070] One loading device 4, one sliding device IA5 and one sliding device IIB5 form a loading system. Figure 1 , multiple sliding devices IA5 are installed on the slide rail IA201. Figure 6 , multiple sliding devices IIB5 are installed on the slide rail IIB201.

[0071] See also Fig. 9 The sliding device IA5 includes a fixed pulley IA501, a fixed pulley IIA502 and a support IA503. The number of the sliding devices IA5 is the same as the number of the loading devices 4, that is, in a set of loading systems, each loading fixed pulley IA402 has a fixed pulley IA501 and a fixed pulley IIA502 below.

[0072] The slide rail IA201 and the slide rail IIB201 are I-beams, and grooves are formed on both sides of the I-beams.

[0073] See also Fig.10The support IA503 includes an upper end plate I and two side plates I. The two side plates I are respectively located on both sides of the slide rail IA201, and the upper ends of the two side plates are connected to the lower side of the upper end plate I. The two side plates I are respectively installed with a track pulley IA5031 and a track pulley IIA5032. The track pulley IA5031 and the track pulley IIA5032 are respectively located in the grooves on both sides of the I-beam.

[0074] The fixed pulley IA501 and the fixed pulley IIA502 are installed on the upper surface of the upper end plate I. During operation, the fixed pulley IA501 and the fixed pulley IIA502 are lifted by the wire rope together with the support IA503, and the track pulley IA5031 and the track pulley IIA5032 contact the lower surface of the upper flange of the slide rail IA201 and slide along the lower surface of the slide rail IA201.

[0075] See also Fig.11 The sliding device IIB5 includes a fixed pulley IIIB501, a fixed pulley IVB502 and a support IIB503. The number of the sliding devices IIB5 is the same as the number of the loading devices 4, that is, in a set of loading systems, each loading fixed pulley IIB402 has a fixed pulley IIIB501 and a fixed pulley IVB502 below.

[0076] See also Fig.12 The support IIB503 includes an upper end plate II and two side plates II. The two side plates II are respectively located on both sides of the slide rail IIB201, and the upper ends of the two side plates are connected to the bottom of the upper end plate II. The two side plates II are respectively installed with a track pulley IIIB5031 and a track pulley IVB5032. The track pulley IIIB5031 and the track pulley IVB5032 are respectively located in the grooves on both sides of the I-beam.

[0077] The fixed pulley IIIB501 and the fixed pulley IVB502 are installed on the upper surface of the upper end plate II. When working, the fixed pulley IIIB501 and the fixed pulley IVB502 are lifted by the wire rope together with the support IIB503, and the track pulley IIIB5031 and the track pulley IVB5032 contact the lower surface of the upper flange of the slide rail IIB201 and slide along the lower surface of the slide rail IIB201.

[0078] The plurality of loading systems are numbered starting from the end close to the reaction frame 1, see Figure 1A loading force conversion device IA6 is provided between the first group of loading systems and the second group of loading systems. The loading force conversion device IA6 comprises a large rotating wheel IA601, a small rotating wheel IA602, a rotating wheel frame IA603 and an axle IA604. The rotating wheel frame IA603 is fixed on the slide rail IA201. The axle IA604 is mounted on the rotating wheel frame IA603. The large rotating wheel IA601 and the small rotating wheel IA602 share the axle IA604 and are connected as a whole. The large rotating wheel IA601 and the small rotating wheel IA602 can rotate freely and synchronously.

[0079] See also Figure 6 A loading force conversion device IIB6 is provided between the first group of loading systems and the second group of loading systems. The loading force conversion device IIB6 comprises a large rotating wheel IIB601, a small rotating wheel IIB602, a rotating wheel frame IIB603 and an axle IIB604. The rotating wheel frame IIB603 is fixed on the slide rail IIB201. The axle IIB604 is installed on the rotating wheel frame IIB603. The large rotating wheel IIB601 and the small rotating wheel IIB602 share the axle IIB604 and are connected as a whole. The large rotating wheel IIB601 and the small rotating wheel IIB602 can rotate freely and synchronously.

[0080] See also Figure 1 A loading force conversion device IIIA7 is provided between the last group of loading systems and the penultimate group of loading systems. The loading force conversion device IIIA7 comprises a large rotating wheel IIIA701, a small rotating wheel IIIA702, a rotating wheel frame IIIA703 and an axle IIIA704. The rotating wheel frame IIIA703 is fixed on the slide rail IA201. The axle IIIA704 is mounted on the rotating wheel frame IIIA703. The large rotating wheel IIIA701 and the small rotating wheel IIIA702 share the axle IIIA704 and are connected as a whole. The large rotating wheel IIIA701 and the small rotating wheel IIIA702 can rotate freely synchronously. The loading force conversion device IA6 and the loading force conversion device IIIA7 cooperate with each other. The large rotating wheel IA601 has the same diameter as the large rotating wheel IIIA701. The small rotating wheel IA602 has the same diameter as the small rotating wheel IIIA702.

[0081] See also Figure 6A loading force conversion device IVB7 is provided between the last group of loading systems and the penultimate group of loading systems. The loading force conversion device IVB7 comprises a large wheel IVB701, a small wheel IVB702, a wheel frame IVB703 and an axle IVB704. The wheel frame IVB703 is fixed on the slide rail IIB201. The axle IVB704 is mounted on the wheel frame IVB703. The large wheel IVB701 and the small wheel IVB702 share the axle IVB704 and are connected as one. The large wheel IIIB701 and the small wheel IVB702 can rotate freely synchronously. The loading force conversion device IIB6 and the loading force conversion device IVB7 cooperate with each other. The large wheel IIB601 has the same diameter as the large wheel IVB701. The small wheel IIB602 has the same diameter as the small wheel IVB702.

[0082] One end of the wire rope IA801 is subjected to tension during the test, and the other end is wound around the reaction frame fixed pulley IA103, the ground beam fixed pulley IA203, and the first group of loading systems in turn, and then wound around the small rotating wheel IA602 for multiple turns. A weight IA10 is hung on the end of the wire rope IA801 subjected to tension.

[0083] One end of the wire rope IIA802 is wrapped around the large wheel IA601 for multiple turns, and the other end is wrapped around the second loading system, the third loading system... after the penultimate loading system, it is wrapped around the large wheel IIIA701 for multiple turns.

[0084] One end of the steel wire rope IIIA803 is wound around the small rotating wheel IIIA702 for multiple turns, and the other end is fixed on the fixed pile 202 after passing through the last group of loading systems in turn.

[0085] When the steel wire rope IA801, the steel wire rope IIA802 or the steel wire rope IIIA803 passes around any group of loading systems, it passes around the fixed pulley IA501, the loading fixed pulley IA402 and the fixed pulley IIA502 in sequence.

[0086] One end of the steel wire rope IVB801 is subjected to tension during the test, and the other end is wound around the reaction frame fixed pulley IIB103, the ground beam fixed pulley IIB203, and the first set of loading systems in turn, and then wound around the small rotating wheel IIB602 for multiple turns. A weight IIB10 is hung on the end of the steel wire rope IVB801 subjected to tension.

[0087] One end of the wire rope VB802 is wrapped around the large wheel IIB601 for multiple turns, and the other end is wrapped around the second loading system, the third loading system... the penultimate loading system, and then wrapped around the large wheel IVB701 for multiple turns.

[0088] One end of the wire rope VIB803 is wound around the small rotating wheel IVB702 for multiple turns, and the other end is fixed on the fixed pile 202 after passing through the last set of loading systems in sequence.

[0089] When the steel wire rope IVB801, steel wire rope VB802 or steel wire rope VIB803 passes around any group of loading systems, it passes around the fixed pulley IIIB501, the loading fixed pulley IIB402 and the fixed pulley IVB502 in sequence.

[0090] During the test, the gravity of the weight IA10 and the weight IIB10 can be used to apply force to multiple areas of the component. Compared with the conventional test method of using multiple cylinders to apply force to the component, the operation is simpler, the force is applied evenly everywhere, and the test cost and difficulty are reduced. Moreover, when the lateral force test is performed on the component, there is no problem of sliding on the surface of the component and the cylinder, which ensures the test effect.

[0091] Embodiment 2:

[0092] This embodiment discloses a method for testing the lateral force of a frame under vertical loading conditions using a vertical variable force loading system as described in Embodiment 1, wherein: the specimen to be tested is a frame 3 to be tested.

[0093] See also Figure 1 Or 6, the frame to be tested 3 includes a frame upper beam 301, a frame column 302 and a frame lower beam 303. The frame lower beam 303 is fixed to the ground beam 2.

[0094] Embodiment 3:

[0095] The method described in this embodiment is the same as that in embodiment 2. Figure 1 , 2 Or 3, a plurality of the loading devices 4 are fixed above the frame 3 to be tested, wherein the loading devices 4 in the first and last groups of loading systems are fixed above two frame columns 302 respectively.

[0096] Embodiment 4:

[0097] The method described in this embodiment is the same as that in embodiment 2. Furthermore, during the test, the loading device 4 applies a vertical force to the frame to be tested 3. The lateral loading device 9 installed on the reaction frame 1 is a telescopic cylinder, whose telescopic end contacts the side of the frame to be tested 3 and applies a lateral force to the frame to be tested 3.

[0098] Embodiment 5:

[0099] The present embodiment discloses a vertical variable force loading system, including a reaction frame 1, a ground beam 2, a loading device 4, a sliding device IA5, a sliding device IIB5, a loading force conversion device IA6, a loading force conversion device IIB6, a loading force conversion device IIIA7 and a loading force conversion device IVB7.

[0100] See also Figure 1 Or 6, the reaction frame 1 is located at one side of the ground beam 2. The reaction frame 1 is hung with a reaction frame fixed pulley IA103 and a reaction frame fixed pulley IIB103.

[0101] The ground beam 2 is fixed to the ground. A component to be tested is installed above the ground beam 2.

[0102] During testing, a plurality of loading devices 4 are fixed on the top surface of the component to be tested.

[0103] The loading device 4 includes a loading fixed pulley IA402 and a loading fixed pulley IIB402. Referring to 2 or 3, the loading fixed pulley IA402 and the loading fixed pulley IIB402 are respectively located on both sides of the component to be tested.

[0104] The ground beam 2 is provided with a slide rail IA201, a slide rail IIB201, a fixing pile 202, a ground beam fixed pulley IA203 and a ground beam fixed pulley IIB203.

[0105] The ground beam fixed pulley IA203 and the ground beam fixed pulley IIB203 are installed at one end close to the reaction frame 1, and the fixed pile 202 is installed at one end away from the reaction frame 1. The slide rail IA201 and the slide rail IIB201 are parallel to each other and are located on both sides of the component to be tested.

[0106] One loading device 4, one sliding device IA5 and one sliding device IIB5 form a loading system. Figure 1 , multiple sliding devices IA5 are installed on the slide rail IA201. Figure 6 , multiple sliding devices IIB5 are installed on the slide rail IIB201.

[0107] The sliding device IA5 includes a fixed pulley IA501, a fixed pulley IIA502 and a support IA503. The lower end of the support IA503 is a ram that cooperates with the slide rail IA201. The fixed pulley IA501 and the fixed pulley IIA502 are installed above the support A503. The number of the sliding devices IA5 is the same as the number of the loading devices 4, that is, in a set of loading systems, there is a fixed pulley IA501 and a fixed pulley IIA502 below each loading fixed pulley IA402.

[0108] The sliding device IIB5 includes a fixed pulley IIIB501, a fixed pulley IVB502 and a support IIB503. The lower end of the support IIB503 is a ram that cooperates with the slide rail IIB201. The fixed pulley IB501 and the fixed pulley IIB502 are installed above the support IIB503. The number of the sliding devices IIB5 is the same as the number of the loading devices 4, that is, in a set of loading systems, there is a fixed pulley IIIB501 and a fixed pulley IVB502 below each loading fixed pulley IIB402.

[0109] The plurality of loading systems are numbered starting from the end close to the reaction frame 1, see Figure 1 A loading force conversion device IA6 is provided between the first group of loading systems and the second group of loading systems. The loading force conversion device IA6 comprises a large rotating wheel IA601, a small rotating wheel IA602, a rotating wheel frame IA603 and an axle IA604. The rotating wheel frame IA603 is fixed on the slide rail IA201. The axle IA604 is mounted on the rotating wheel frame IA603. The large rotating wheel IA601 and the small rotating wheel IA602 share the axle IA604 and are connected as a whole. The large rotating wheel IA601 and the small rotating wheel IA602 can rotate freely and synchronously.

[0110] See also Figure 6 A loading force conversion device IIB6 is provided between the first group of loading systems and the second group of loading systems. The loading force conversion device IIB6 comprises a large rotating wheel IIB601, a small rotating wheel IIB602, a rotating wheel frame IIB603 and an axle IIB604. The rotating wheel frame IIB603 is fixed on the slide rail IIB201. The axle IIB604 is installed on the rotating wheel frame IIB603. The large rotating wheel IIB601 and the small rotating wheel IIB602 share the axle IIB604 and are connected as a whole. The large rotating wheel IIB601 and the small rotating wheel IIB602 can rotate freely and synchronously.

[0111] See also Figure 1 A loading force conversion device IIIA7 is provided between the last group of loading systems and the penultimate group of loading systems. The loading force conversion device IIIA7 comprises a large rotating wheel IIIA701, a small rotating wheel IIIA702, a rotating wheel frame IIIA703 and an axle IIIA704. The rotating wheel frame IIIA703 is fixed on the slide rail IA201. The axle IIIA704 is mounted on the rotating wheel frame IIIA703. The large rotating wheel IIIA701 and the small rotating wheel IIIA702 share the axle IIIA704 and are connected as a whole. The large rotating wheel IIIA701 and the small rotating wheel IIIA702 can rotate freely and synchronously.

[0112] See also Figure 6A loading force conversion device IVB7 is provided between the last group of loading systems and the penultimate group of loading systems. The loading force conversion device IVB7 comprises a large wheel IVB701, a small wheel IVB702, a wheel frame IVB703 and an axle IVB704. The wheel frame IVB703 is fixed on the slide rail IIB201. The axle IVB704 is mounted on the wheel frame IVB703. The large wheel IVB701 and the small wheel IVB702 share the axle IVB704 and are connected as a whole. The large wheel IVB701 and the small wheel IVB702 can rotate freely and synchronously.

[0113] One end of the wire rope IA801 is subjected to tension during the test, and the other end is wound around the reaction frame fixed pulley IA103, the ground beam fixed pulley IA203, and the first set of loading systems in turn, and then wrapped around the small rotating wheel IA602 for multiple turns.

[0114] One end of the wire rope IIA802 is wrapped around the large wheel IA601 for multiple turns, and the other end is wrapped around the second loading system, the third loading system... after the penultimate loading system, it is wrapped around the large wheel IIIA701 for multiple turns.

[0115] One end of the steel wire rope IIIA803 is wound around the small rotating wheel IIIA702 for multiple turns, and the other end is fixed on the fixed pile 202 after passing through the last group of loading systems in turn.

[0116] When the steel wire rope IA801, the steel wire rope IIA802 or the steel wire rope IIIA803 passes around any group of loading systems, it passes around the fixed pulley IA501, the loading fixed pulley IA402 and the fixed pulley IIA502 in sequence.

[0117] One end of the wire rope IVB801 is subjected to tension during the test, and the other end is wound around the reaction frame fixed pulley IIB103, the ground beam fixed pulley IIB203, and the first set of loading systems in turn, and then wrapped around the small rotating wheel IIB602 for multiple turns.

[0118] One end of the wire rope VB802 is wrapped around the large wheel IIB601 for multiple turns, and the other end is wrapped around the second loading system, the third loading system... the penultimate loading system, and then wrapped around the large wheel IVB701 for multiple turns.

[0119] One end of the wire rope VIB803 is wound around the small rotating wheel IVB702 for multiple turns, and the other end is fixed on the fixed pile 202 after passing through the last set of loading systems in sequence.

[0120] When the steel wire rope IVB801, steel wire rope VB802 or steel wire rope VIB803 passes around any group of loading systems, it passes around the fixed pulley IIIB501, the loading fixed pulley IIB402 and the fixed pulley IVB502 in sequence.

[0121] Embodiment 6:

[0122] The main structure of this embodiment is the same as that of Embodiment 5. Furthermore, the slide rail IA201 and the slide rail IIB201 are made of rectangular steel.

[0123] See also Fig.13 The support IA503 includes an upper end plate I and two side plates I. The two side plates I are respectively located on both sides of the slide rail IA201, and the upper ends of the two are connected to the bottom of the upper end plate I. A pulley I is installed between the two side plates I.

[0124] Fixed pulley IA501 and fixed pulley IIA502 are installed on the upper surface of the upper end plate I. During operation, the fixed pulley IA501 and fixed pulley IIA502 are lifted by the wire rope together with the support IA503, and the pulley I contacts the lower surface of the slide rail IA201 and slides along the lower surface of the slide rail IA201.

[0125] The support IIB503 includes an upper end plate II and two side plates II. The two side plates II are respectively located on both sides of the slide rail IIB201, and the upper ends of the two are connected to the bottom of the upper end plate II. A pulley II is installed between the two side plates.

[0126] The fixed pulley IIIB501 and the fixed pulley IVB502 are installed on the upper surface of the upper end plate II. When working, the fixed pulley IIIB501 and the fixed pulley IVB502 are lifted by the wire rope together with the support IIB503, and the pulley II contacts the lower surface of the slide rail IB201 and slides along the lower surface of the slide rail IB201.

[0127] Embodiment 7:

[0128] The main structure of this embodiment is the same as that of embodiment 5. Figure 1 Or 6, the reaction frame 1 includes a reaction column 101 and a reaction beam 102.

[0129] The reaction frame fixed pulley IA103 and the reaction frame fixed pulley IIB103 are suspended on the reaction beam 102. The lateral loading device 9 for loading the lateral force is installed on the side of the reaction column 101 facing the test piece to be tested.

[0130] Embodiment 8:

[0131] The main structure of this embodiment is the same as that of embodiment 5. Furthermore, the load force conversion device IA6 and the load force conversion device IIIA7 cooperate with each other. The large wheel IA601 has the same diameter as the large wheel IIIA701. The small wheel IA602 has the same diameter as the small wheel IIIA702.

[0132] The load force conversion device IIB6 and the load force conversion device IVB7 cooperate with each other. The large wheel IIB601 has the same diameter as the large wheel IVB701. The small wheel IIB602 has the same diameter as the small wheel IVB702.

[0133] Embodiment 9:

[0134] The main structure of this embodiment is the same as that of embodiment 5. Figure 1 Or 6, a weight IA10 is hung on the end of the steel wire rope IA801 that is under tension. A weight IIB10 is hung on the end of the steel wire rope IVB801 that is under tension.

[0135] Embodiment 10:

[0136] The main structure of this embodiment is the same as that of embodiment 5. Further, the loading device 4 includes a loading plate 401, a loading fixed pulley IA402, and a loading fixed pulley IIB402. During testing, the loading plate 401 is fixed to the top surface of the component to be tested, and the loading fixed pulley IA402 and the loading fixed pulley IIB402 are respectively located on both sides of the component to be tested. The upper ends of the loading fixed pulley IA402 and the loading fixed pulley IIB402 are fixed to the lower end of the loading plate 401.

Claims

1. A vertical variable force loading system, Features: It comprises a reaction frame (1), a ground beam (2), a loading device (4), a sliding device I (A5), a sliding device II (B5), a loading force conversion device I (A6), a loading force conversion device II (B6), a loading force conversion device III (A7) and a loading force conversion device IV (B7); The reaction frame (1) is located on one side of the ground beam (2); a reaction frame fixed pulley I (A103) and a reaction frame fixed pulley II (B103) are suspended on the reaction frame (1); The ground beam (2) is fixed to the ground; a component to be tested is installed above the ground beam (2); During testing, a plurality of loading devices (4) are fixed on the top surface of the component to be tested; The loading device (4) comprises a loading fixed pulley I (A402) and a loading fixed pulley II (B402), and the loading fixed pulley I (A402) and the loading fixed pulley II (B402) are respectively located on both sides of the component to be tested; The ground beam (2) is equipped with a slide rail I (A201), a slide rail II (B201), a fixing pile (202), a ground beam fixed pulley I (A203) and a ground beam fixed pulley II (B203); The ground beam fixed pulley I (A203) and the ground beam fixed pulley II (B203) are installed at one end close to the reaction frame (1), and the fixed pile (202) is installed at one end away from the reaction frame (1); the slide rail I (A201) and the slide rail II (B201) are parallel to each other and are located on both sides of the component to be tested; A loading device (4), a sliding device I (A5) and a sliding device II (B5) form a loading system; A plurality of sliding devices I (A5) are installed on the slide rail I (A201); a plurality of sliding devices II (B5) are installed on the slide rail II (B201); The sliding device I (A5) comprises a fixed pulley I (A501), a fixed pulley II (A502) and a support I (A503); the lower end of the support I (A503) is a slide block that cooperates with the slide rail I (A201); the fixed pulley I (A501) and the fixed pulley II (A502) are installed above the support I (A503); the number of the sliding devices I (A5) is the same as the number of the loading devices (4), that is, in a set of loading systems, each loading fixed pulley I (A402) has a fixed pulley I (A501) and a fixed pulley II (A502) below; The sliding device II (B5) comprises a fixed pulley III (B501), a fixed pulley IV (B502) and a support II (B503); the lower end of the support II (B503) is a slide block that cooperates with the slide rail II (B201); the fixed pulley III (B501) and the fixed pulley IV (B502) are installed above the support II (B503); the number of the sliding devices II (B5) is the same as the number of the loading devices (4), that is, in a set of loading systems, each loading fixed pulley II (B402) has a fixed pulley III (B501) and a fixed pulley IV (B502) below; Several groups of loading systems are numbered starting from one end close to the reaction frame (1), and a loading force conversion device I (A6) is arranged between the first group of loading systems and the second group of loading systems; the loading force conversion device I (A6) comprises a large rotating wheel I (A601), a small rotating wheel I (A602), a rotating wheel frame I (A603) and an axle I (A604); the rotating wheel frame I (A603) is fixed on the slide rail I (A201); the axle I (A604) is installed on the rotating wheel frame I (A603); the large rotating wheel I (A601) and the small rotating wheel I (A602) share the axle I (A604) and are connected as a whole; the large rotating wheel I (A601) and the small rotating wheel I (A602) can rotate freely and synchronously; A loading force conversion device II (B6) is provided between the first group of loading systems and the second group of loading systems; the loading force conversion device II (B6) comprises a large rotating wheel II (B601), a small rotating wheel II (B602), a rotating wheel frame II (B603) and an axle II (B604); the rotating wheel frame II (B603) is fixed on the slide rail II (B201); the axle II (B604) is installed on the rotating wheel frame II (B603); the large rotating wheel II (B601) and the small rotating wheel II (B602) share the axle II (B604) and are connected as a whole; the large rotating wheel II (B601) and the small rotating wheel II (B602) can rotate freely and synchronously; A loading force conversion device III (A7) is provided between the last group of loading systems and the penultimate group of loading systems; the loading force conversion device III (A7) comprises a large rotating wheel III (A701), a small rotating wheel III (A702), a rotating wheel frame III (A703) and an axle III (A704); the rotating wheel frame III (A703) is fixed on the slide rail I (A201); the axle III (A704) is installed on the rotating wheel frame III (A703); the large rotating wheel III (A701) and the small rotating wheel III (A702) share the axle III (A704) and are connected as a whole; the large rotating wheel III (A701) and the small rotating wheel III (A702) can rotate freely and synchronously; A loading force conversion device IV (B7) is provided between the last group of loading systems and the penultimate group of loading systems; the loading force conversion device IV (B7) comprises a large rotating wheel IV (B701), a small rotating wheel IV (B702), a rotating wheel frame IV (B703) and an axle IV (B704); the rotating wheel frame IV (B703) is fixed on the slide rail II (B201); the axle IV (B704) is installed on the rotating wheel frame IV (B703); the large rotating wheel IV (B701) and the small rotating wheel IV (B702) share the axle IV (B704) and are connected as a whole; the large rotating wheel IV (B701) and the small rotating wheel IV (B702) can rotate freely and synchronously; One end of the wire rope I (A801) is subjected to tension during the test, and the other end is wound around the reaction frame fixed pulley I (A103), the ground beam fixed pulley I (A203), and the first set of loading systems in sequence, and then wound around the small rotating wheel I (A602) for several turns; One end of the wire rope II (A802) is wound several times around the large rotating wheel I (A601), and the other end is wound several times around the second loading system, the third loading system, and the second to last loading system; One end of the steel wire rope III (A803) is wound around the small rotating wheel III (A702) for several turns, and the other end is fixed on the fixed pile (202) after passing through the last group of loading systems in turn; When the steel wire rope I (A801), steel wire rope II (A802) or steel wire rope III (A803) passes around any group of loading systems, it passes around the fixed pulley I (A501), the loading fixed pulley I (A402) and the fixed pulley II (A502) in sequence; One end of the wire rope IV (B801) is subjected to tension during the test, and the other end is passed through the reaction frame fixed pulley II (B103), the ground beam fixed pulley II (B203), the first set of loading systems, and then wrapped around the small rotating wheel II (B602) for several turns; One end of the wire rope V (B802) is wound several times around the large wheel II (B601), and the other end is wound several times around the large wheel IV (B701) after passing through the second loading system, the third loading system, and the second to last loading system in sequence; One end of the steel wire rope VI (B803) is wound around the small rotating wheel IV (B702) for several turns, and the other end is fixed on the fixed pile (202) after passing through the last group of loading systems in turn; When the steel wire rope IV (B801), steel wire rope V (B802) or steel wire rope VI (B803) bypasses any group of loading systems, it bypasses the fixed pulley III (B501), the loading fixed pulley II (B402) and the fixed pulley IV (B502) in sequence.

2. A vertical variable force loading system according to claim 1, Features: The slide rail I (A201) and the slide rail II (B201) are rectangular steel; The support I (A503) includes an upper end plate I and two side plates I; the two side plates I are respectively located on both sides of the slide rail I (A201), and the upper ends of the two are connected to the bottom of the upper end plate I; a pulley I is installed between the two side plates I; The fixed pulley I (A501) and the fixed pulley II (A502) are installed on the upper surface of the upper end plate I; when working, the fixed pulley I (A501) and the fixed pulley II (A502) together with the support I (A503) are lifted by the wire rope, and the pulley I contacts the lower surface of the slide rail I (A201) and slides along the lower surface of the slide rail I (A201); The support II (B503) includes an upper end plate II and two side plates II; the two side plates II are respectively located on both sides of the slide rail II (B201), and the upper ends of the two are connected to the bottom of the upper end plate II; a pulley II is installed between the two side plates; The fixed pulley III (B501) and the fixed pulley IV (B502) are installed on the upper surface of the upper end plate II; when working, the fixed pulley III (B501) and the fixed pulley IV (B502) together with the support II (B503) are lifted by the wire rope, and the pulley II contacts the lower surface of the slide rail II (B201) and slides along the lower surface of the slide rail II (B201).

3. A vertical variable force loading system according to claim 1 or 2, Features: The slide rail I (A201) and the slide rail II (B201) are I-beams; both sides of the I-beams are grooves; The support I (A503) includes an upper end plate I and two side plates I; the two side plates I are respectively located on both sides of the slide rail I (A201), and the upper ends of the two side plates are connected to the bottom of the upper end plate I; the two side plates I are respectively installed with a track pulley I (A5031) and a track pulley II (A5032); the track pulley I (A5031) and the track pulley II (A5032) are respectively located in the grooves on both sides of the I-beam; The fixed pulley I (A501) and the fixed pulley II (A502) are installed on the upper surface of the upper end plate I; when working, the fixed pulley I (A501) and the fixed pulley II (A502) together with the support I (A503) are lifted by the wire rope, and the track pulley I (A5031) and the track pulley II (A5032) contact the lower surface of the upper flange of the slide rail I (A201) and slide along the lower surface of the slide rail I (A201); The support II (B503) includes an upper end plate II and two side plates II; the two side plates II are respectively located on both sides of the slide rail II (B201), and the upper ends of the two side plates are connected to the bottom of the upper end plate II; the two side plates II are respectively installed with track pulleys III (B5031) and track pulleys IV (B5032); the track pulleys III (B5031) and track pulleys IV (B5032) are respectively located in the grooves on both sides of the I-beam; The fixed pulley III (B501) and the fixed pulley IV (B502) are installed on the upper surface of the upper end plate II; when working, the fixed pulley III (B501) and the fixed pulley IV (B502) together with the support II (B503) are lifted by the wire rope, and the track pulley III (B5031) and the track pulley IV (B5032) contact the lower surface of the upper flange of the slide rail II (B201) and slide along the lower surface of the slide rail II (B201).

4. A vertical variable force loading system according to claim 3, Features: The reaction frame (1) comprises a reaction column (101) and a reaction beam (102); The reaction frame fixed pulley I (A103) and the reaction frame fixed pulley II (B103) are suspended on the reaction beam (102); the lateral loading device (9) for loading the lateral force is installed on the side of the reaction column (101) facing the test piece to be tested.

5. A vertical variable force loading system according to claim 1, Features: The loading force conversion device I (A6) and the loading force conversion device III (A7) cooperate with each other; the large rotating wheel I (A601) and the large rotating wheel III (A701) have the same diameter; the small rotating wheel I (A602) and the small rotating wheel III (A702) have the same diameter; The loading force conversion device II (B6) and the loading force conversion device IV (B7) cooperate with each other; the large rotating wheel II (B601) and the large rotating wheel IV (B701) have the same diameter; the small rotating wheel II (B602) and the small rotating wheel IV (B702) have the same diameter.

6. A vertical variable force loading system according to claim 1, Features: A weight I (A10) is hung on the end of the steel wire rope I (A801) that is subjected to tension; a weight II (B10) is hung on the end of the steel wire rope IV (B801) that is subjected to tension.

7. A vertical variable force loading system according to claim 1, Features: The loading device (4) comprises a loading plate (401), a loading fixed pulley I (A402), and a loading fixed pulley II (B402); during testing, the loading plate (401) is fixed to the top surface of the component to be tested, and the loading fixed pulley I (A402) and the loading fixed pulley II (B402) are respectively located on both sides of the component to be tested; the upper ends of the loading fixed pulley I (A402) and the loading fixed pulley II (B402) are fixed to the lower end of the loading plate (401).

8. A method for testing the lateral force of a frame under vertical loading conditions using a vertical variable force loading system as claimed in claim 4, Features: The test piece to be tested is a frame to be tested (3); The frame to be tested (3) comprises a frame upper beam (301), a frame column (302) and a frame lower beam (303); the frame lower beam (303) is fixed to the ground beam (2).

9. A method for testing the lateral force of a frame under vertical loading conditions using a vertical variable force loading system according to claim 8, Features: A plurality of the loading devices (4) are fixed above the frame (3) to be tested, wherein the loading devices (4) in the first and last groups of loading systems are respectively fixed above two frame columns (302).

10. A method for testing the lateral force of a frame under vertical loading conditions using a vertical variable force loading system according to claim 8, Features: During the test, the loading device (4) applies a vertical force to the frame to be tested (3); the lateral loading device (9) installed on the reaction frame (1) is a telescopic cylinder, the telescopic end of which contacts the side of the frame to be tested (3) and applies a lateral force to the frame to be tested (3).

Images