append to
tbody
$("#chk").empty();
$("#chk").append("<table border=1 class='table table-striped'> <caption> <h3> Parameters </h3> </caption> <thead> <tr><th></th><th>Signal Name </th><th>Signal Description </th></tr> </thead> <tbody></tbody> </table>");
$("#chk table tbody").append("<tr><td>chkbox</td><td>Myname</td><td>Mydescription</td></tr>");