結(jié)構(gòu)工程師必備——彎矩計(jì)算

1、.下面總結(jié)了各種結(jié)構(gòu)彎矩圖的繪制及圖例：一、 方法步驟1、確定支反力的大小和方向（一般情況心算即可計(jì)算出支反力）懸臂式剛架不必先求支反力；簡(jiǎn)支式剛架取整體為分離體求反力；求三鉸式剛架的水平反力以中間鉸C的某一邊為分離體；對(duì)于主從結(jié)構(gòu)的復(fù)雜式剛架，注意“先從后主”的計(jì)算順序；對(duì)于復(fù)雜的組合結(jié)構(gòu)，注意尋找求出支反力的突破口。2、對(duì)于懸臂式剛架，從自由端開(kāi)始，按照分段疊加法，逐段求作M圖（M圖畫(huà)在受拉一側(cè)）；對(duì)于其它形式的剛架，從支座端開(kāi)始，按照分段疊加法，逐段求作M圖（M圖畫(huà)在受拉一側(cè)）。二、 觀察檢驗(yàn)M圖的正確性1、觀察各個(gè)關(guān)鍵點(diǎn)和梁段的M圖特點(diǎn)是否相符鉸心的彎矩一定為零；集中力偶作用點(diǎn)的彎矩有

2、突變，突變值與集中力偶相等；集中力作用點(diǎn)的彎矩有折角；均布荷載作用段的M圖是拋物線(xiàn)，其凹凸方向與荷載方向要符合“弓箭法則”；2、結(jié)構(gòu)中的鏈桿（二力桿）沒(méi)有彎矩；3、結(jié)構(gòu)中所有結(jié)點(diǎn)的桿端彎矩必須符合平衡特點(diǎn)。*;button. Select login rule button above the rule number menu under . Then open the barcode generator for the barcode002 part of the Properties dialog box, click the factor/control button in the de

3、stination edit box,Open the barcode generator for the barcode003 part of the Properties window, click the factor/control button, and then at the destination use the Ctrl + v, to enter into the well on the 2nd floor you just copied right 2nd truck name (example PART_STORE_00099), then click on OK but

4、ton. Open 2 right up 3rd truck Properties window, use the ' Ctrl ' + ' c ' will summary property names are copied. Open the barcode generator for the barcode004 part of the pop-up menu in the property dialog box, click the factor/control button in the destination using the Ctrl + v,

5、to enter copy 2 3rd truck name right (case of PART_STORE_00100), then click the OK button. Then use "Lesson3-2.emu" as the file name to save the other. Click on menu bar | simulation | start | or time column in the start button, you see the goods are put on the conveyor belt, and robotic l

6、oading pallets for through the pulley tracks were moved to the automatic tridimensional warehouse storage. If Tray 1 out of the library, select the tray popup menu IOSection Library instructionmenu (1 layer). If the tray 2 out of the library, right-click with the mouse on the tray in the pop-up menu

7、, select IOSection Library instructionenu (2). From 2 out of the tray after it has been transferred to the transit point discharge, workers unloaded the goods. Empty tray again by rail back to automatic stereoscopic warehouse. Remove the cargo by conveyor belts was transferred to corresponding cage inside the vehicle. Note 1: simulation before the start,