水之乡
我不是土木专业毕业的,不过我学过材料的双硕士,不知道翻得对不对。 DESIGN FORM PANELS.设计形式面板。 Design the form panel for a foundation wall illustrated in Fig.8-3 for specified conditions:设计图所示为基础墙为特定条件下3表格面板:Maximum depth of concrete, 6 ft.混凝土的最大深度,6英尺Maximum rate of placing concrete, 4 ft per hr最大沉降速率将具体的定为每年4小时英尺Minimum temperature, 50℉最低温度,50℉The concrete will be vibrated.全覆盖式振动。 The maximum pressure for quick filling would be 6*150=900 lb per sq ft. However, reference to Table 3-1gives a maximum pressure of 870 lb per sq ft, which will be used.快速填充的最大的压力是60 * 150 = 900磅每平方尺,但参考表3 1gives的八百七十〇英镑每平方,将用于最大压力。 Determine the maximum safe spacing of studs, based on using 3/4-in.-thick plywood facing.确定螺栓最高安全间距,基于使用3/4英寸,-in.-thick胶合板面对的问题。 Consider a strip of plywood 12 in. wide and 8 ft long at the bottom of the forms, for which beam 9, Table 5-1, will apply.考虑一个胶合板条12英寸宽,8英尺长在形式,而底部的束9,表5-1,将适用。 Determine the spacing of studs based on bending moment.确定螺栓根据弯矩间距。Since Table 5-3 indicates that bending moment controls the spacing, it will not be necessary to check for the stress in shear or for deflection.由于表5-3显示,弯矩控制间距,将没有必要的检查或剪应力变形。 The studs will be spaced 16 in. center to center.该钉将间隔16英寸中心的中心。 Determine the maximum spacing of form ties, based on horizontal shear in the 2- by 4-in.确定关系的最高形式的基础上在2水平剪力 - 由4 -间距。 top plate of the panel in the first tier and the bottom plate of the panel in the second.顶板的第一级小组和第二小组的底板。 Thus, two plates will resist the shear along this row of form ties.因此,两个板块将沿着这条抵抗关系的形式排剪切。 When the forms are filled with concrete, the depth at this section will be 4 ft and the maximum pressure will be 600 lb per sq ft. Consider a horizontal strip of plywood sheathing 12 in. above an 12 in. below this section.当表格混凝土填补,在本节的深度为4尺的最大压力将是每平方英尺600英镑考虑一个带护套胶合板以上水平以下,本节12英寸12英寸。 The lateral pressure on the form will be 2*600=1,200 lb per lin ft. using beam 9 of Table 5-1, the maximum shear on the two plates will be窗体上的侧压力将是2 * 600 = 1,200元林英尺磅使用束表5-1,对两大板块最大剪切9将